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TS V5G212 V12 (2016-06)
1
Verizon 5G TF Air Interface Working Group Verizon 5th Generation Radio Access Multiplexing and channel coding (Release 1)
06 2016
Cisco Ericsson Intel Corp LG Electronics Nokia Qualcomm Technologies Inc Samsung Electronics amp
Verizon
V 12
Disclaimer This document provides information related to 5G technology All information provided herein is subject to change
without notice The members of the 5GTF disclaim and make no guaranty or warranty express or implied as to the accuracy or
completeness of any information contained or referenced herein THE 5GTF AND ITS MEMBERS DISCLAIM ANY IMPLIED
WARRANTY OF MERCHANTABILITY NON-INFRINGEMENT OR FITNESS FOR ANY PARTICULAR PURPOSE AND ALL
INFORMATION IS PROVIDED ON AN ldquoAS-ISrdquo BASIS No licenses under any intellectual property of any kind are provided by any
person (whether a member of the 5GTF or not) that may be necessary to access or utilize any of the information contained herein
including but not limited to any source materials referenced herein and any patents required to implement or develop any
technology described herein It shall be the responsibility of anyone attempting to use the information contained or referenced herein
to obtain any such licenses if necessary The 5GTF and its members disclaim liability for any damages or losses of any nature
whatsoever whether direct indirect special or consequential resulting from the use of or reliance on any information contained or
referenced herein
copy 2016 Cellco Partnership dba Verizon Wireless All rights reserved
TS V5G212 V12 (2016-06)
2
Document History
Version Date Change Verizon POC
01 2016-03-31 Draft version created
02 2016-03-31 Agreements after April 5GTF F2F
03 2016-05-04 Agreements before May 5GTF F2F v1
09 2016-05-09 Agreements before May 5GTF F2F v2
10 2016-05-18 First version approved
11 2016-06-15 CR001 ndash Introduction of DCI formats A1 A2 B1 B2
2016-06-24 CR002 approved
2016-06-24 CR003 approved
2016-06-24 CR004 approved
2016-06-24 CR005 approved
2016-06-24 CR006 approved
12 2016-06-29
New release including CR002 CR003 CR004 CR005 and CR006
Document Approvals
Name Title Company Date of Approval
TS V5G212 V12 (2016-06)
3
Table of Contents
1 Scope 5
2 References 5
3 Symbols and abbreviations 5
31 Symbols 5
32 Abbreviations 5
4 Mapping to physical channels 6
41 Uplink 6
42 Downlink 7
5 Channel coding multiplexing and interleaving 7
51 Generic procedures 7
511 CRC calculation 7
512 Code block segmentation 8
513 Channel coding 12
514 Rate matching 22
515 Code block concatenation 29
52 Uplink transport channels and control information 30
521 Random access channel 30
522 Uplink shared channel 30
523 Uplink control information on xPUCCH 40
524 Uplink control information on xPUSCH without xUL-SCH data 43
53 Downlink transport channels and control information 45
531 Broadcast channel 45
531A Extended broadcast channel 46
532 Downlink shared channel 48
533 Downlink control information 50
List of Figures
Figure 5131-1 Rate 13 tail biting convolutional encoder 13
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only) 20
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information 23
Figure 5143-1 Rate matching for turbo coded transport channels 26
Figure 522-1 Transport block processing for xUL-SCH 31
Figure 523-1 Processing for UCI 40
TS V5G212 V12 (2016-06)
4
Figure 531-1 Transport channel processing for xBCH 45
Figure 531-1 Transport channel processing for xBCH 47
Figure 532-1 Transport block processing for xDL-SCH 49
Figure 533-1 Processing for one DCI 51
List of Tables
Table 41-1 6
Table 41-2 6
Table 42-1 7
Table 42-2 7
Table 512-1 Kmax and Kmin 8
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs 13
Table 513-2 Usage of channel coding scheme and coding rate for control information 13
Table 5132-1 Parameters of parity check matrix 14
Table 5132-2 Matrix exponents for Code rate R=56 14
Table 5132-3 Matrix exponents for R=34 15
Table 5132-4 Matrix exponents for R=23 16
Table 5132-5 Matrix exponents for R=12 17
Table 51333-3 Turbo code internal interleaver parameters 21
Table 514-2 Inter-column permutation pattern for sub-block interleaver 25
Table 51431-1 Inter-column permutation pattern for sub-block interleaver 27
Table 5226-1 Encoding of 1-bit RI 33
Table 5226-2 0
RIo to RI mapping 34
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report 36
Table 52261-2 Fields for BSI feedback for wideband report 36
Table 52261-3 Fields for BRI feedback for one wideband report 36
Table 52263-1 Basis sequences for (32 O) code 37
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports 41
Table 52331-1 Fields for BSI feedback for one wideband report 42
Table 5311-1 CRC mask for xPBCH 46
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats 54
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats 57
TS V5G212 V12 (2016-06)
5
1 Scope
The present document specifies the coding multiplexing and mapping to physical channels for Verizon
5G Radio Access (V5G RA)
2 References
The following documents contain provisions which through reference in this text constitute provisions of
the present document
References are either specific (identified by date of publication edition number version number etc) or
non-specific
For a specific reference subsequent revisions do not apply
For a non-specific reference the latest version applies In the case of a reference to a V5G document a
non-specific reference implicitly refers to the latest version of that document in the same Release as the
present document
[1] TS V5G201 Verizon 5G Radio Access (V5G RA) Physical layer General description
[2] TS V5G211 Verizon 5G Radio Access (V5G RA) Physical channels and modulation
[3] TS V5G213 Verizon 5G Radio Access (V5G RA) Physical layer procedures
[4] TS V5G321 ldquoVerizon 5G Radio Access (V5G RA) 5G Medium Access Control Protocolrdquo
[5] TS V5G331 ldquoVerizon 5G Radio Access (V5G RA) 5G Radio Resource Control (5G-RRC)
Protocol Specificationrdquo
[6] IEEE Std 80211ntrade-2009 Enhancements for Higher Throughput (Amendment 5)
3 Symbols and abbreviations
31 Symbols
For the purposes of the present document the following symbols apply
Symbols are not defined
32 Abbreviations
For the purposes of the present document the following abbreviations apply
5GNB 5G NodeB
BRS Beam measurement Reference Signal
CSI Channel State Information
TS V5G212 V12 (2016-06)
6
DCI Downlink Control Information
LDPC Low Density Parity Check
PMI Precoding Matrix Indicator
TDD Time Division Duplexing
UCI Uplink Control Information
xBCH 5G Broadcast channel
xDL-SCH 5G Downlink Shared channel
xPBCH 5G Physical Broadcast channel
xPDCCH 5G Physical Downlink Control channel
xPDSCH 5G Physical Downlink Shared channel
xPRACH 5G Physical Random Access channel
xPUSCH 5G Physical Uplink Shared channel
xUL-SCH 5G Uplink Shared channel
4 Mapping to physical channels
41 Uplink
Table 41-1 specifies the mapping of the uplink transport channels to their corresponding physical
channels Table 41-2 specifies the mapping of the uplink control channel information to its corresponding
physical channel
Table 41-1
TrCH Physical Channel
xUL-SCH xPUSCH
Table 41-2
Control information Physical Channel
UCI xPUCCH xPUSCH
TS V5G212 V12 (2016-06)
7
42 Downlink
Table 42-1 specifies the mapping of the downlink transport channels to their corresponding physical
channels Table 42-2 specifies the mapping of the downlink control channel information to its
corresponding physical channel
Table 42-1
TrCH Physical Channel
xDL-SCH xPDSCH
xBCH xPBCH ePBCH
Table 42-2
Control information Physical Channel
DCI xPDCCH
5 Channel coding multiplexing and interleaving
Data and control streams fromto MAC layer are encoded decoded to offer transport and control services
over the radio transmission link Channel coding scheme is a combination of error detection error
correcting rate matching interleaving and transport channel or control information mapping ontosplitting
from physical channels
51 Generic procedures
This section contains coding procedures which are used for more than one transport channel or control
information type
511 CRC calculation
Denote the input bits to the CRC computation by 13210 Aaaaaa and the parity bits by
13210 Lppppp A is the size of the input sequence and L is the number of parity bits The parity
bits are generated by one of the following cyclic generator polynomials
gCRC24A(D) = [D24
+ D23
+ D18
+ D17
+ D14
+ D11
+ D10
+ D7 + D
6 + D
5 + D
4 + D
3 + D + 1] and
gCRC24B(D) = [D24
+ D23
+ D6 + D
5 + D + 1] for a CRC length L = 24 and
gCRC16(D) = [D16
+ D12
+ D5 + 1] for a CRC length L = 16
gCRC8(D) = [D8 + D
7 + D
4 + D
3 + D + 1] for a CRC length of L = 8
The encoding is performed in a systematic form which means that in GF(2) the polynomial
231
2222
123
024
122
123
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by the corresponding length-24 CRC generator polynomial
gCRC24A(D) the polynomial
TS V5G212 V12 (2016-06)
8
151
1414
115
016
114
115
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by gCRC16(D) and the polynomial
7
1
6
6
1
7
0
8
1
6
1
7
0 pDpDpDpDaDaDa A
AA
yields a remainder equal to 0 when divided by gCRC8(D)
The bits after CRC attachment are denoted by 13210 Bbbbbb where B = A+ L The relation between
ak and bk is
kk ab for k = 0 1 2 hellip A-1
Akk pb for k = A A+1 A+2 A+L-1
512 Code block segmentation
5121 Code block segmentation for LDPC code
The input bit sequence to the LDPC (Low Density Parity Check) code block segmentation is denoted by
13210 Bbbbbb where B gt 0 If B is larger than the maximum code block size Kmax segmentation of
the input bit sequence is performed
The maximum and minimum code block sizes depending on the code rate are depicted in Table 512-1
Table 512-1 Kmax and Kmin
Code Rate Kmax Kmin
56 1620 540
34 1458 486
23 1296 432
12 972 324
If the number of filler bits Fr calculated below is not 0 filler bits are added to r-th blocks where r is the
code block number
Note that if B lt Kmin filler bits are added to the end of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
For a given code rate total number of code blocks C is determined by
if Ble Kmax
Number of code blocks 1C
else
TS V5G212 V12 (2016-06)
9
Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
TS V5G212 V12 (2016-06)
10
srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
TS V5G212 V12 (2016-06)
11
The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
TS V5G212 V12 (2016-06)
12
while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
TS V5G212 V12 (2016-06)
13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
TS V5G212 V12 (2016-06)
14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
TS V5G212 V12 (2016-06)
15
22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
TS V5G212 V12 (2016-06)
16
30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
17
25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
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26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
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27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
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28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
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29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
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31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
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32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
2
Document History
Version Date Change Verizon POC
01 2016-03-31 Draft version created
02 2016-03-31 Agreements after April 5GTF F2F
03 2016-05-04 Agreements before May 5GTF F2F v1
09 2016-05-09 Agreements before May 5GTF F2F v2
10 2016-05-18 First version approved
11 2016-06-15 CR001 ndash Introduction of DCI formats A1 A2 B1 B2
2016-06-24 CR002 approved
2016-06-24 CR003 approved
2016-06-24 CR004 approved
2016-06-24 CR005 approved
2016-06-24 CR006 approved
12 2016-06-29
New release including CR002 CR003 CR004 CR005 and CR006
Document Approvals
Name Title Company Date of Approval
TS V5G212 V12 (2016-06)
3
Table of Contents
1 Scope 5
2 References 5
3 Symbols and abbreviations 5
31 Symbols 5
32 Abbreviations 5
4 Mapping to physical channels 6
41 Uplink 6
42 Downlink 7
5 Channel coding multiplexing and interleaving 7
51 Generic procedures 7
511 CRC calculation 7
512 Code block segmentation 8
513 Channel coding 12
514 Rate matching 22
515 Code block concatenation 29
52 Uplink transport channels and control information 30
521 Random access channel 30
522 Uplink shared channel 30
523 Uplink control information on xPUCCH 40
524 Uplink control information on xPUSCH without xUL-SCH data 43
53 Downlink transport channels and control information 45
531 Broadcast channel 45
531A Extended broadcast channel 46
532 Downlink shared channel 48
533 Downlink control information 50
List of Figures
Figure 5131-1 Rate 13 tail biting convolutional encoder 13
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only) 20
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information 23
Figure 5143-1 Rate matching for turbo coded transport channels 26
Figure 522-1 Transport block processing for xUL-SCH 31
Figure 523-1 Processing for UCI 40
TS V5G212 V12 (2016-06)
4
Figure 531-1 Transport channel processing for xBCH 45
Figure 531-1 Transport channel processing for xBCH 47
Figure 532-1 Transport block processing for xDL-SCH 49
Figure 533-1 Processing for one DCI 51
List of Tables
Table 41-1 6
Table 41-2 6
Table 42-1 7
Table 42-2 7
Table 512-1 Kmax and Kmin 8
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs 13
Table 513-2 Usage of channel coding scheme and coding rate for control information 13
Table 5132-1 Parameters of parity check matrix 14
Table 5132-2 Matrix exponents for Code rate R=56 14
Table 5132-3 Matrix exponents for R=34 15
Table 5132-4 Matrix exponents for R=23 16
Table 5132-5 Matrix exponents for R=12 17
Table 51333-3 Turbo code internal interleaver parameters 21
Table 514-2 Inter-column permutation pattern for sub-block interleaver 25
Table 51431-1 Inter-column permutation pattern for sub-block interleaver 27
Table 5226-1 Encoding of 1-bit RI 33
Table 5226-2 0
RIo to RI mapping 34
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report 36
Table 52261-2 Fields for BSI feedback for wideband report 36
Table 52261-3 Fields for BRI feedback for one wideband report 36
Table 52263-1 Basis sequences for (32 O) code 37
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports 41
Table 52331-1 Fields for BSI feedback for one wideband report 42
Table 5311-1 CRC mask for xPBCH 46
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats 54
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats 57
TS V5G212 V12 (2016-06)
5
1 Scope
The present document specifies the coding multiplexing and mapping to physical channels for Verizon
5G Radio Access (V5G RA)
2 References
The following documents contain provisions which through reference in this text constitute provisions of
the present document
References are either specific (identified by date of publication edition number version number etc) or
non-specific
For a specific reference subsequent revisions do not apply
For a non-specific reference the latest version applies In the case of a reference to a V5G document a
non-specific reference implicitly refers to the latest version of that document in the same Release as the
present document
[1] TS V5G201 Verizon 5G Radio Access (V5G RA) Physical layer General description
[2] TS V5G211 Verizon 5G Radio Access (V5G RA) Physical channels and modulation
[3] TS V5G213 Verizon 5G Radio Access (V5G RA) Physical layer procedures
[4] TS V5G321 ldquoVerizon 5G Radio Access (V5G RA) 5G Medium Access Control Protocolrdquo
[5] TS V5G331 ldquoVerizon 5G Radio Access (V5G RA) 5G Radio Resource Control (5G-RRC)
Protocol Specificationrdquo
[6] IEEE Std 80211ntrade-2009 Enhancements for Higher Throughput (Amendment 5)
3 Symbols and abbreviations
31 Symbols
For the purposes of the present document the following symbols apply
Symbols are not defined
32 Abbreviations
For the purposes of the present document the following abbreviations apply
5GNB 5G NodeB
BRS Beam measurement Reference Signal
CSI Channel State Information
TS V5G212 V12 (2016-06)
6
DCI Downlink Control Information
LDPC Low Density Parity Check
PMI Precoding Matrix Indicator
TDD Time Division Duplexing
UCI Uplink Control Information
xBCH 5G Broadcast channel
xDL-SCH 5G Downlink Shared channel
xPBCH 5G Physical Broadcast channel
xPDCCH 5G Physical Downlink Control channel
xPDSCH 5G Physical Downlink Shared channel
xPRACH 5G Physical Random Access channel
xPUSCH 5G Physical Uplink Shared channel
xUL-SCH 5G Uplink Shared channel
4 Mapping to physical channels
41 Uplink
Table 41-1 specifies the mapping of the uplink transport channels to their corresponding physical
channels Table 41-2 specifies the mapping of the uplink control channel information to its corresponding
physical channel
Table 41-1
TrCH Physical Channel
xUL-SCH xPUSCH
Table 41-2
Control information Physical Channel
UCI xPUCCH xPUSCH
TS V5G212 V12 (2016-06)
7
42 Downlink
Table 42-1 specifies the mapping of the downlink transport channels to their corresponding physical
channels Table 42-2 specifies the mapping of the downlink control channel information to its
corresponding physical channel
Table 42-1
TrCH Physical Channel
xDL-SCH xPDSCH
xBCH xPBCH ePBCH
Table 42-2
Control information Physical Channel
DCI xPDCCH
5 Channel coding multiplexing and interleaving
Data and control streams fromto MAC layer are encoded decoded to offer transport and control services
over the radio transmission link Channel coding scheme is a combination of error detection error
correcting rate matching interleaving and transport channel or control information mapping ontosplitting
from physical channels
51 Generic procedures
This section contains coding procedures which are used for more than one transport channel or control
information type
511 CRC calculation
Denote the input bits to the CRC computation by 13210 Aaaaaa and the parity bits by
13210 Lppppp A is the size of the input sequence and L is the number of parity bits The parity
bits are generated by one of the following cyclic generator polynomials
gCRC24A(D) = [D24
+ D23
+ D18
+ D17
+ D14
+ D11
+ D10
+ D7 + D
6 + D
5 + D
4 + D
3 + D + 1] and
gCRC24B(D) = [D24
+ D23
+ D6 + D
5 + D + 1] for a CRC length L = 24 and
gCRC16(D) = [D16
+ D12
+ D5 + 1] for a CRC length L = 16
gCRC8(D) = [D8 + D
7 + D
4 + D
3 + D + 1] for a CRC length of L = 8
The encoding is performed in a systematic form which means that in GF(2) the polynomial
231
2222
123
024
122
123
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by the corresponding length-24 CRC generator polynomial
gCRC24A(D) the polynomial
TS V5G212 V12 (2016-06)
8
151
1414
115
016
114
115
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by gCRC16(D) and the polynomial
7
1
6
6
1
7
0
8
1
6
1
7
0 pDpDpDpDaDaDa A
AA
yields a remainder equal to 0 when divided by gCRC8(D)
The bits after CRC attachment are denoted by 13210 Bbbbbb where B = A+ L The relation between
ak and bk is
kk ab for k = 0 1 2 hellip A-1
Akk pb for k = A A+1 A+2 A+L-1
512 Code block segmentation
5121 Code block segmentation for LDPC code
The input bit sequence to the LDPC (Low Density Parity Check) code block segmentation is denoted by
13210 Bbbbbb where B gt 0 If B is larger than the maximum code block size Kmax segmentation of
the input bit sequence is performed
The maximum and minimum code block sizes depending on the code rate are depicted in Table 512-1
Table 512-1 Kmax and Kmin
Code Rate Kmax Kmin
56 1620 540
34 1458 486
23 1296 432
12 972 324
If the number of filler bits Fr calculated below is not 0 filler bits are added to r-th blocks where r is the
code block number
Note that if B lt Kmin filler bits are added to the end of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
For a given code rate total number of code blocks C is determined by
if Ble Kmax
Number of code blocks 1C
else
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Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
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srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
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The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
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while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
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LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
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The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
TS V5G212 V12 (2016-06)
22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
3
Table of Contents
1 Scope 5
2 References 5
3 Symbols and abbreviations 5
31 Symbols 5
32 Abbreviations 5
4 Mapping to physical channels 6
41 Uplink 6
42 Downlink 7
5 Channel coding multiplexing and interleaving 7
51 Generic procedures 7
511 CRC calculation 7
512 Code block segmentation 8
513 Channel coding 12
514 Rate matching 22
515 Code block concatenation 29
52 Uplink transport channels and control information 30
521 Random access channel 30
522 Uplink shared channel 30
523 Uplink control information on xPUCCH 40
524 Uplink control information on xPUSCH without xUL-SCH data 43
53 Downlink transport channels and control information 45
531 Broadcast channel 45
531A Extended broadcast channel 46
532 Downlink shared channel 48
533 Downlink control information 50
List of Figures
Figure 5131-1 Rate 13 tail biting convolutional encoder 13
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only) 20
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information 23
Figure 5143-1 Rate matching for turbo coded transport channels 26
Figure 522-1 Transport block processing for xUL-SCH 31
Figure 523-1 Processing for UCI 40
TS V5G212 V12 (2016-06)
4
Figure 531-1 Transport channel processing for xBCH 45
Figure 531-1 Transport channel processing for xBCH 47
Figure 532-1 Transport block processing for xDL-SCH 49
Figure 533-1 Processing for one DCI 51
List of Tables
Table 41-1 6
Table 41-2 6
Table 42-1 7
Table 42-2 7
Table 512-1 Kmax and Kmin 8
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs 13
Table 513-2 Usage of channel coding scheme and coding rate for control information 13
Table 5132-1 Parameters of parity check matrix 14
Table 5132-2 Matrix exponents for Code rate R=56 14
Table 5132-3 Matrix exponents for R=34 15
Table 5132-4 Matrix exponents for R=23 16
Table 5132-5 Matrix exponents for R=12 17
Table 51333-3 Turbo code internal interleaver parameters 21
Table 514-2 Inter-column permutation pattern for sub-block interleaver 25
Table 51431-1 Inter-column permutation pattern for sub-block interleaver 27
Table 5226-1 Encoding of 1-bit RI 33
Table 5226-2 0
RIo to RI mapping 34
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report 36
Table 52261-2 Fields for BSI feedback for wideband report 36
Table 52261-3 Fields for BRI feedback for one wideband report 36
Table 52263-1 Basis sequences for (32 O) code 37
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports 41
Table 52331-1 Fields for BSI feedback for one wideband report 42
Table 5311-1 CRC mask for xPBCH 46
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats 54
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats 57
TS V5G212 V12 (2016-06)
5
1 Scope
The present document specifies the coding multiplexing and mapping to physical channels for Verizon
5G Radio Access (V5G RA)
2 References
The following documents contain provisions which through reference in this text constitute provisions of
the present document
References are either specific (identified by date of publication edition number version number etc) or
non-specific
For a specific reference subsequent revisions do not apply
For a non-specific reference the latest version applies In the case of a reference to a V5G document a
non-specific reference implicitly refers to the latest version of that document in the same Release as the
present document
[1] TS V5G201 Verizon 5G Radio Access (V5G RA) Physical layer General description
[2] TS V5G211 Verizon 5G Radio Access (V5G RA) Physical channels and modulation
[3] TS V5G213 Verizon 5G Radio Access (V5G RA) Physical layer procedures
[4] TS V5G321 ldquoVerizon 5G Radio Access (V5G RA) 5G Medium Access Control Protocolrdquo
[5] TS V5G331 ldquoVerizon 5G Radio Access (V5G RA) 5G Radio Resource Control (5G-RRC)
Protocol Specificationrdquo
[6] IEEE Std 80211ntrade-2009 Enhancements for Higher Throughput (Amendment 5)
3 Symbols and abbreviations
31 Symbols
For the purposes of the present document the following symbols apply
Symbols are not defined
32 Abbreviations
For the purposes of the present document the following abbreviations apply
5GNB 5G NodeB
BRS Beam measurement Reference Signal
CSI Channel State Information
TS V5G212 V12 (2016-06)
6
DCI Downlink Control Information
LDPC Low Density Parity Check
PMI Precoding Matrix Indicator
TDD Time Division Duplexing
UCI Uplink Control Information
xBCH 5G Broadcast channel
xDL-SCH 5G Downlink Shared channel
xPBCH 5G Physical Broadcast channel
xPDCCH 5G Physical Downlink Control channel
xPDSCH 5G Physical Downlink Shared channel
xPRACH 5G Physical Random Access channel
xPUSCH 5G Physical Uplink Shared channel
xUL-SCH 5G Uplink Shared channel
4 Mapping to physical channels
41 Uplink
Table 41-1 specifies the mapping of the uplink transport channels to their corresponding physical
channels Table 41-2 specifies the mapping of the uplink control channel information to its corresponding
physical channel
Table 41-1
TrCH Physical Channel
xUL-SCH xPUSCH
Table 41-2
Control information Physical Channel
UCI xPUCCH xPUSCH
TS V5G212 V12 (2016-06)
7
42 Downlink
Table 42-1 specifies the mapping of the downlink transport channels to their corresponding physical
channels Table 42-2 specifies the mapping of the downlink control channel information to its
corresponding physical channel
Table 42-1
TrCH Physical Channel
xDL-SCH xPDSCH
xBCH xPBCH ePBCH
Table 42-2
Control information Physical Channel
DCI xPDCCH
5 Channel coding multiplexing and interleaving
Data and control streams fromto MAC layer are encoded decoded to offer transport and control services
over the radio transmission link Channel coding scheme is a combination of error detection error
correcting rate matching interleaving and transport channel or control information mapping ontosplitting
from physical channels
51 Generic procedures
This section contains coding procedures which are used for more than one transport channel or control
information type
511 CRC calculation
Denote the input bits to the CRC computation by 13210 Aaaaaa and the parity bits by
13210 Lppppp A is the size of the input sequence and L is the number of parity bits The parity
bits are generated by one of the following cyclic generator polynomials
gCRC24A(D) = [D24
+ D23
+ D18
+ D17
+ D14
+ D11
+ D10
+ D7 + D
6 + D
5 + D
4 + D
3 + D + 1] and
gCRC24B(D) = [D24
+ D23
+ D6 + D
5 + D + 1] for a CRC length L = 24 and
gCRC16(D) = [D16
+ D12
+ D5 + 1] for a CRC length L = 16
gCRC8(D) = [D8 + D
7 + D
4 + D
3 + D + 1] for a CRC length of L = 8
The encoding is performed in a systematic form which means that in GF(2) the polynomial
231
2222
123
024
122
123
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by the corresponding length-24 CRC generator polynomial
gCRC24A(D) the polynomial
TS V5G212 V12 (2016-06)
8
151
1414
115
016
114
115
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by gCRC16(D) and the polynomial
7
1
6
6
1
7
0
8
1
6
1
7
0 pDpDpDpDaDaDa A
AA
yields a remainder equal to 0 when divided by gCRC8(D)
The bits after CRC attachment are denoted by 13210 Bbbbbb where B = A+ L The relation between
ak and bk is
kk ab for k = 0 1 2 hellip A-1
Akk pb for k = A A+1 A+2 A+L-1
512 Code block segmentation
5121 Code block segmentation for LDPC code
The input bit sequence to the LDPC (Low Density Parity Check) code block segmentation is denoted by
13210 Bbbbbb where B gt 0 If B is larger than the maximum code block size Kmax segmentation of
the input bit sequence is performed
The maximum and minimum code block sizes depending on the code rate are depicted in Table 512-1
Table 512-1 Kmax and Kmin
Code Rate Kmax Kmin
56 1620 540
34 1458 486
23 1296 432
12 972 324
If the number of filler bits Fr calculated below is not 0 filler bits are added to r-th blocks where r is the
code block number
Note that if B lt Kmin filler bits are added to the end of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
For a given code rate total number of code blocks C is determined by
if Ble Kmax
Number of code blocks 1C
else
TS V5G212 V12 (2016-06)
9
Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
TS V5G212 V12 (2016-06)
10
srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
TS V5G212 V12 (2016-06)
11
The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
TS V5G212 V12 (2016-06)
12
while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
TS V5G212 V12 (2016-06)
13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
TS V5G212 V12 (2016-06)
14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
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26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
4
Figure 531-1 Transport channel processing for xBCH 45
Figure 531-1 Transport channel processing for xBCH 47
Figure 532-1 Transport block processing for xDL-SCH 49
Figure 533-1 Processing for one DCI 51
List of Tables
Table 41-1 6
Table 41-2 6
Table 42-1 7
Table 42-2 7
Table 512-1 Kmax and Kmin 8
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs 13
Table 513-2 Usage of channel coding scheme and coding rate for control information 13
Table 5132-1 Parameters of parity check matrix 14
Table 5132-2 Matrix exponents for Code rate R=56 14
Table 5132-3 Matrix exponents for R=34 15
Table 5132-4 Matrix exponents for R=23 16
Table 5132-5 Matrix exponents for R=12 17
Table 51333-3 Turbo code internal interleaver parameters 21
Table 514-2 Inter-column permutation pattern for sub-block interleaver 25
Table 51431-1 Inter-column permutation pattern for sub-block interleaver 27
Table 5226-1 Encoding of 1-bit RI 33
Table 5226-2 0
RIo to RI mapping 34
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report 36
Table 52261-2 Fields for BSI feedback for wideband report 36
Table 52261-3 Fields for BRI feedback for one wideband report 36
Table 52263-1 Basis sequences for (32 O) code 37
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports 41
Table 52331-1 Fields for BSI feedback for one wideband report 42
Table 5311-1 CRC mask for xPBCH 46
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats 54
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats 57
TS V5G212 V12 (2016-06)
5
1 Scope
The present document specifies the coding multiplexing and mapping to physical channels for Verizon
5G Radio Access (V5G RA)
2 References
The following documents contain provisions which through reference in this text constitute provisions of
the present document
References are either specific (identified by date of publication edition number version number etc) or
non-specific
For a specific reference subsequent revisions do not apply
For a non-specific reference the latest version applies In the case of a reference to a V5G document a
non-specific reference implicitly refers to the latest version of that document in the same Release as the
present document
[1] TS V5G201 Verizon 5G Radio Access (V5G RA) Physical layer General description
[2] TS V5G211 Verizon 5G Radio Access (V5G RA) Physical channels and modulation
[3] TS V5G213 Verizon 5G Radio Access (V5G RA) Physical layer procedures
[4] TS V5G321 ldquoVerizon 5G Radio Access (V5G RA) 5G Medium Access Control Protocolrdquo
[5] TS V5G331 ldquoVerizon 5G Radio Access (V5G RA) 5G Radio Resource Control (5G-RRC)
Protocol Specificationrdquo
[6] IEEE Std 80211ntrade-2009 Enhancements for Higher Throughput (Amendment 5)
3 Symbols and abbreviations
31 Symbols
For the purposes of the present document the following symbols apply
Symbols are not defined
32 Abbreviations
For the purposes of the present document the following abbreviations apply
5GNB 5G NodeB
BRS Beam measurement Reference Signal
CSI Channel State Information
TS V5G212 V12 (2016-06)
6
DCI Downlink Control Information
LDPC Low Density Parity Check
PMI Precoding Matrix Indicator
TDD Time Division Duplexing
UCI Uplink Control Information
xBCH 5G Broadcast channel
xDL-SCH 5G Downlink Shared channel
xPBCH 5G Physical Broadcast channel
xPDCCH 5G Physical Downlink Control channel
xPDSCH 5G Physical Downlink Shared channel
xPRACH 5G Physical Random Access channel
xPUSCH 5G Physical Uplink Shared channel
xUL-SCH 5G Uplink Shared channel
4 Mapping to physical channels
41 Uplink
Table 41-1 specifies the mapping of the uplink transport channels to their corresponding physical
channels Table 41-2 specifies the mapping of the uplink control channel information to its corresponding
physical channel
Table 41-1
TrCH Physical Channel
xUL-SCH xPUSCH
Table 41-2
Control information Physical Channel
UCI xPUCCH xPUSCH
TS V5G212 V12 (2016-06)
7
42 Downlink
Table 42-1 specifies the mapping of the downlink transport channels to their corresponding physical
channels Table 42-2 specifies the mapping of the downlink control channel information to its
corresponding physical channel
Table 42-1
TrCH Physical Channel
xDL-SCH xPDSCH
xBCH xPBCH ePBCH
Table 42-2
Control information Physical Channel
DCI xPDCCH
5 Channel coding multiplexing and interleaving
Data and control streams fromto MAC layer are encoded decoded to offer transport and control services
over the radio transmission link Channel coding scheme is a combination of error detection error
correcting rate matching interleaving and transport channel or control information mapping ontosplitting
from physical channels
51 Generic procedures
This section contains coding procedures which are used for more than one transport channel or control
information type
511 CRC calculation
Denote the input bits to the CRC computation by 13210 Aaaaaa and the parity bits by
13210 Lppppp A is the size of the input sequence and L is the number of parity bits The parity
bits are generated by one of the following cyclic generator polynomials
gCRC24A(D) = [D24
+ D23
+ D18
+ D17
+ D14
+ D11
+ D10
+ D7 + D
6 + D
5 + D
4 + D
3 + D + 1] and
gCRC24B(D) = [D24
+ D23
+ D6 + D
5 + D + 1] for a CRC length L = 24 and
gCRC16(D) = [D16
+ D12
+ D5 + 1] for a CRC length L = 16
gCRC8(D) = [D8 + D
7 + D
4 + D
3 + D + 1] for a CRC length of L = 8
The encoding is performed in a systematic form which means that in GF(2) the polynomial
231
2222
123
024
122
123
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by the corresponding length-24 CRC generator polynomial
gCRC24A(D) the polynomial
TS V5G212 V12 (2016-06)
8
151
1414
115
016
114
115
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by gCRC16(D) and the polynomial
7
1
6
6
1
7
0
8
1
6
1
7
0 pDpDpDpDaDaDa A
AA
yields a remainder equal to 0 when divided by gCRC8(D)
The bits after CRC attachment are denoted by 13210 Bbbbbb where B = A+ L The relation between
ak and bk is
kk ab for k = 0 1 2 hellip A-1
Akk pb for k = A A+1 A+2 A+L-1
512 Code block segmentation
5121 Code block segmentation for LDPC code
The input bit sequence to the LDPC (Low Density Parity Check) code block segmentation is denoted by
13210 Bbbbbb where B gt 0 If B is larger than the maximum code block size Kmax segmentation of
the input bit sequence is performed
The maximum and minimum code block sizes depending on the code rate are depicted in Table 512-1
Table 512-1 Kmax and Kmin
Code Rate Kmax Kmin
56 1620 540
34 1458 486
23 1296 432
12 972 324
If the number of filler bits Fr calculated below is not 0 filler bits are added to r-th blocks where r is the
code block number
Note that if B lt Kmin filler bits are added to the end of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
For a given code rate total number of code blocks C is determined by
if Ble Kmax
Number of code blocks 1C
else
TS V5G212 V12 (2016-06)
9
Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
TS V5G212 V12 (2016-06)
10
srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
TS V5G212 V12 (2016-06)
11
The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
TS V5G212 V12 (2016-06)
12
while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
TS V5G212 V12 (2016-06)
13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
TS V5G212 V12 (2016-06)
14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
TS V5G212 V12 (2016-06)
15
22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
TS V5G212 V12 (2016-06)
16
30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
17
25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
18
24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
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27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
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28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
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29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
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31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
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32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
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33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
5
1 Scope
The present document specifies the coding multiplexing and mapping to physical channels for Verizon
5G Radio Access (V5G RA)
2 References
The following documents contain provisions which through reference in this text constitute provisions of
the present document
References are either specific (identified by date of publication edition number version number etc) or
non-specific
For a specific reference subsequent revisions do not apply
For a non-specific reference the latest version applies In the case of a reference to a V5G document a
non-specific reference implicitly refers to the latest version of that document in the same Release as the
present document
[1] TS V5G201 Verizon 5G Radio Access (V5G RA) Physical layer General description
[2] TS V5G211 Verizon 5G Radio Access (V5G RA) Physical channels and modulation
[3] TS V5G213 Verizon 5G Radio Access (V5G RA) Physical layer procedures
[4] TS V5G321 ldquoVerizon 5G Radio Access (V5G RA) 5G Medium Access Control Protocolrdquo
[5] TS V5G331 ldquoVerizon 5G Radio Access (V5G RA) 5G Radio Resource Control (5G-RRC)
Protocol Specificationrdquo
[6] IEEE Std 80211ntrade-2009 Enhancements for Higher Throughput (Amendment 5)
3 Symbols and abbreviations
31 Symbols
For the purposes of the present document the following symbols apply
Symbols are not defined
32 Abbreviations
For the purposes of the present document the following abbreviations apply
5GNB 5G NodeB
BRS Beam measurement Reference Signal
CSI Channel State Information
TS V5G212 V12 (2016-06)
6
DCI Downlink Control Information
LDPC Low Density Parity Check
PMI Precoding Matrix Indicator
TDD Time Division Duplexing
UCI Uplink Control Information
xBCH 5G Broadcast channel
xDL-SCH 5G Downlink Shared channel
xPBCH 5G Physical Broadcast channel
xPDCCH 5G Physical Downlink Control channel
xPDSCH 5G Physical Downlink Shared channel
xPRACH 5G Physical Random Access channel
xPUSCH 5G Physical Uplink Shared channel
xUL-SCH 5G Uplink Shared channel
4 Mapping to physical channels
41 Uplink
Table 41-1 specifies the mapping of the uplink transport channels to their corresponding physical
channels Table 41-2 specifies the mapping of the uplink control channel information to its corresponding
physical channel
Table 41-1
TrCH Physical Channel
xUL-SCH xPUSCH
Table 41-2
Control information Physical Channel
UCI xPUCCH xPUSCH
TS V5G212 V12 (2016-06)
7
42 Downlink
Table 42-1 specifies the mapping of the downlink transport channels to their corresponding physical
channels Table 42-2 specifies the mapping of the downlink control channel information to its
corresponding physical channel
Table 42-1
TrCH Physical Channel
xDL-SCH xPDSCH
xBCH xPBCH ePBCH
Table 42-2
Control information Physical Channel
DCI xPDCCH
5 Channel coding multiplexing and interleaving
Data and control streams fromto MAC layer are encoded decoded to offer transport and control services
over the radio transmission link Channel coding scheme is a combination of error detection error
correcting rate matching interleaving and transport channel or control information mapping ontosplitting
from physical channels
51 Generic procedures
This section contains coding procedures which are used for more than one transport channel or control
information type
511 CRC calculation
Denote the input bits to the CRC computation by 13210 Aaaaaa and the parity bits by
13210 Lppppp A is the size of the input sequence and L is the number of parity bits The parity
bits are generated by one of the following cyclic generator polynomials
gCRC24A(D) = [D24
+ D23
+ D18
+ D17
+ D14
+ D11
+ D10
+ D7 + D
6 + D
5 + D
4 + D
3 + D + 1] and
gCRC24B(D) = [D24
+ D23
+ D6 + D
5 + D + 1] for a CRC length L = 24 and
gCRC16(D) = [D16
+ D12
+ D5 + 1] for a CRC length L = 16
gCRC8(D) = [D8 + D
7 + D
4 + D
3 + D + 1] for a CRC length of L = 8
The encoding is performed in a systematic form which means that in GF(2) the polynomial
231
2222
123
024
122
123
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by the corresponding length-24 CRC generator polynomial
gCRC24A(D) the polynomial
TS V5G212 V12 (2016-06)
8
151
1414
115
016
114
115
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by gCRC16(D) and the polynomial
7
1
6
6
1
7
0
8
1
6
1
7
0 pDpDpDpDaDaDa A
AA
yields a remainder equal to 0 when divided by gCRC8(D)
The bits after CRC attachment are denoted by 13210 Bbbbbb where B = A+ L The relation between
ak and bk is
kk ab for k = 0 1 2 hellip A-1
Akk pb for k = A A+1 A+2 A+L-1
512 Code block segmentation
5121 Code block segmentation for LDPC code
The input bit sequence to the LDPC (Low Density Parity Check) code block segmentation is denoted by
13210 Bbbbbb where B gt 0 If B is larger than the maximum code block size Kmax segmentation of
the input bit sequence is performed
The maximum and minimum code block sizes depending on the code rate are depicted in Table 512-1
Table 512-1 Kmax and Kmin
Code Rate Kmax Kmin
56 1620 540
34 1458 486
23 1296 432
12 972 324
If the number of filler bits Fr calculated below is not 0 filler bits are added to r-th blocks where r is the
code block number
Note that if B lt Kmin filler bits are added to the end of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
For a given code rate total number of code blocks C is determined by
if Ble Kmax
Number of code blocks 1C
else
TS V5G212 V12 (2016-06)
9
Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
TS V5G212 V12 (2016-06)
10
srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
TS V5G212 V12 (2016-06)
11
The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
TS V5G212 V12 (2016-06)
12
while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
TS V5G212 V12 (2016-06)
13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
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The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
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5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
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DCI Downlink Control Information
LDPC Low Density Parity Check
PMI Precoding Matrix Indicator
TDD Time Division Duplexing
UCI Uplink Control Information
xBCH 5G Broadcast channel
xDL-SCH 5G Downlink Shared channel
xPBCH 5G Physical Broadcast channel
xPDCCH 5G Physical Downlink Control channel
xPDSCH 5G Physical Downlink Shared channel
xPRACH 5G Physical Random Access channel
xPUSCH 5G Physical Uplink Shared channel
xUL-SCH 5G Uplink Shared channel
4 Mapping to physical channels
41 Uplink
Table 41-1 specifies the mapping of the uplink transport channels to their corresponding physical
channels Table 41-2 specifies the mapping of the uplink control channel information to its corresponding
physical channel
Table 41-1
TrCH Physical Channel
xUL-SCH xPUSCH
Table 41-2
Control information Physical Channel
UCI xPUCCH xPUSCH
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42 Downlink
Table 42-1 specifies the mapping of the downlink transport channels to their corresponding physical
channels Table 42-2 specifies the mapping of the downlink control channel information to its
corresponding physical channel
Table 42-1
TrCH Physical Channel
xDL-SCH xPDSCH
xBCH xPBCH ePBCH
Table 42-2
Control information Physical Channel
DCI xPDCCH
5 Channel coding multiplexing and interleaving
Data and control streams fromto MAC layer are encoded decoded to offer transport and control services
over the radio transmission link Channel coding scheme is a combination of error detection error
correcting rate matching interleaving and transport channel or control information mapping ontosplitting
from physical channels
51 Generic procedures
This section contains coding procedures which are used for more than one transport channel or control
information type
511 CRC calculation
Denote the input bits to the CRC computation by 13210 Aaaaaa and the parity bits by
13210 Lppppp A is the size of the input sequence and L is the number of parity bits The parity
bits are generated by one of the following cyclic generator polynomials
gCRC24A(D) = [D24
+ D23
+ D18
+ D17
+ D14
+ D11
+ D10
+ D7 + D
6 + D
5 + D
4 + D
3 + D + 1] and
gCRC24B(D) = [D24
+ D23
+ D6 + D
5 + D + 1] for a CRC length L = 24 and
gCRC16(D) = [D16
+ D12
+ D5 + 1] for a CRC length L = 16
gCRC8(D) = [D8 + D
7 + D
4 + D
3 + D + 1] for a CRC length of L = 8
The encoding is performed in a systematic form which means that in GF(2) the polynomial
231
2222
123
024
122
123
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by the corresponding length-24 CRC generator polynomial
gCRC24A(D) the polynomial
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151
1414
115
016
114
115
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by gCRC16(D) and the polynomial
7
1
6
6
1
7
0
8
1
6
1
7
0 pDpDpDpDaDaDa A
AA
yields a remainder equal to 0 when divided by gCRC8(D)
The bits after CRC attachment are denoted by 13210 Bbbbbb where B = A+ L The relation between
ak and bk is
kk ab for k = 0 1 2 hellip A-1
Akk pb for k = A A+1 A+2 A+L-1
512 Code block segmentation
5121 Code block segmentation for LDPC code
The input bit sequence to the LDPC (Low Density Parity Check) code block segmentation is denoted by
13210 Bbbbbb where B gt 0 If B is larger than the maximum code block size Kmax segmentation of
the input bit sequence is performed
The maximum and minimum code block sizes depending on the code rate are depicted in Table 512-1
Table 512-1 Kmax and Kmin
Code Rate Kmax Kmin
56 1620 540
34 1458 486
23 1296 432
12 972 324
If the number of filler bits Fr calculated below is not 0 filler bits are added to r-th blocks where r is the
code block number
Note that if B lt Kmin filler bits are added to the end of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
For a given code rate total number of code blocks C is determined by
if Ble Kmax
Number of code blocks 1C
else
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Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
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srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
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The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
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while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
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LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
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14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
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27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
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28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
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29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
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31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
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32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
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33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
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50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
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51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
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54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
7
42 Downlink
Table 42-1 specifies the mapping of the downlink transport channels to their corresponding physical
channels Table 42-2 specifies the mapping of the downlink control channel information to its
corresponding physical channel
Table 42-1
TrCH Physical Channel
xDL-SCH xPDSCH
xBCH xPBCH ePBCH
Table 42-2
Control information Physical Channel
DCI xPDCCH
5 Channel coding multiplexing and interleaving
Data and control streams fromto MAC layer are encoded decoded to offer transport and control services
over the radio transmission link Channel coding scheme is a combination of error detection error
correcting rate matching interleaving and transport channel or control information mapping ontosplitting
from physical channels
51 Generic procedures
This section contains coding procedures which are used for more than one transport channel or control
information type
511 CRC calculation
Denote the input bits to the CRC computation by 13210 Aaaaaa and the parity bits by
13210 Lppppp A is the size of the input sequence and L is the number of parity bits The parity
bits are generated by one of the following cyclic generator polynomials
gCRC24A(D) = [D24
+ D23
+ D18
+ D17
+ D14
+ D11
+ D10
+ D7 + D
6 + D
5 + D
4 + D
3 + D + 1] and
gCRC24B(D) = [D24
+ D23
+ D6 + D
5 + D + 1] for a CRC length L = 24 and
gCRC16(D) = [D16
+ D12
+ D5 + 1] for a CRC length L = 16
gCRC8(D) = [D8 + D
7 + D
4 + D
3 + D + 1] for a CRC length of L = 8
The encoding is performed in a systematic form which means that in GF(2) the polynomial
231
2222
123
024
122
123
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by the corresponding length-24 CRC generator polynomial
gCRC24A(D) the polynomial
TS V5G212 V12 (2016-06)
8
151
1414
115
016
114
115
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by gCRC16(D) and the polynomial
7
1
6
6
1
7
0
8
1
6
1
7
0 pDpDpDpDaDaDa A
AA
yields a remainder equal to 0 when divided by gCRC8(D)
The bits after CRC attachment are denoted by 13210 Bbbbbb where B = A+ L The relation between
ak and bk is
kk ab for k = 0 1 2 hellip A-1
Akk pb for k = A A+1 A+2 A+L-1
512 Code block segmentation
5121 Code block segmentation for LDPC code
The input bit sequence to the LDPC (Low Density Parity Check) code block segmentation is denoted by
13210 Bbbbbb where B gt 0 If B is larger than the maximum code block size Kmax segmentation of
the input bit sequence is performed
The maximum and minimum code block sizes depending on the code rate are depicted in Table 512-1
Table 512-1 Kmax and Kmin
Code Rate Kmax Kmin
56 1620 540
34 1458 486
23 1296 432
12 972 324
If the number of filler bits Fr calculated below is not 0 filler bits are added to r-th blocks where r is the
code block number
Note that if B lt Kmin filler bits are added to the end of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
For a given code rate total number of code blocks C is determined by
if Ble Kmax
Number of code blocks 1C
else
TS V5G212 V12 (2016-06)
9
Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
TS V5G212 V12 (2016-06)
10
srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
TS V5G212 V12 (2016-06)
11
The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
TS V5G212 V12 (2016-06)
12
while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
TS V5G212 V12 (2016-06)
13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
TS V5G212 V12 (2016-06)
14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
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5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
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151
1414
115
016
114
115
0 pDpDpDpDaDaDa AAA
yields a remainder equal to 0 when divided by gCRC16(D) and the polynomial
7
1
6
6
1
7
0
8
1
6
1
7
0 pDpDpDpDaDaDa A
AA
yields a remainder equal to 0 when divided by gCRC8(D)
The bits after CRC attachment are denoted by 13210 Bbbbbb where B = A+ L The relation between
ak and bk is
kk ab for k = 0 1 2 hellip A-1
Akk pb for k = A A+1 A+2 A+L-1
512 Code block segmentation
5121 Code block segmentation for LDPC code
The input bit sequence to the LDPC (Low Density Parity Check) code block segmentation is denoted by
13210 Bbbbbb where B gt 0 If B is larger than the maximum code block size Kmax segmentation of
the input bit sequence is performed
The maximum and minimum code block sizes depending on the code rate are depicted in Table 512-1
Table 512-1 Kmax and Kmin
Code Rate Kmax Kmin
56 1620 540
34 1458 486
23 1296 432
12 972 324
If the number of filler bits Fr calculated below is not 0 filler bits are added to r-th blocks where r is the
code block number
Note that if B lt Kmin filler bits are added to the end of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
For a given code rate total number of code blocks C is determined by
if Ble Kmax
Number of code blocks 1C
else
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Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
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srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
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The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
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while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
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LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
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The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
TS V5G212 V12 (2016-06)
21
KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
TS V5G212 V12 (2016-06)
22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
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34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
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53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
9
Number of code blocks maxΒΚC
end if
The bits output from code block segmentation for C 0 are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits for the
code block number r
Number of bits in each code block (applicable for C 0 only)
if C = 1
the length of code block 1198700 = lceil119861119870119898119894119899rceil ∙ 119870119898119894119899
the number of filler bits 1198650 = 1198700 minus 119861
else
the temporal value of the length of code block 119869 = lceil119861119862rceil
the temporal value of the length of code block 119870prime = lceil119869119870119898119894119899rceil ∙ 119870119898119894119899 - to make it multiple
of Kmin
the number of total filler bits 119865prime = 119870prime ∙ 119862 minus 119861
120574 = 119865primemod 119862
for r = 0 to 119862 minus 1
if 119903 le 119862 minus 120574 minus 1
the number of filler bits of r-th code block 119865119903 = lfloor119865prime119862rfloor
the length of r-th code block 119870119903 = lceil119861119862rceil + 119865119903
else
the number of filler bits of r-th code block 119865119903 = lceil119865prime119862rceil
the length of r-th code block 119870119903 = lfloor119861119862rfloor + 119865119903
end if
end for r
end if
s = 0
for r = 0 to 119862 minus 1
for k = 0 to Kr ndash Fr ndash 1
TS V5G212 V12 (2016-06)
10
srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
TS V5G212 V12 (2016-06)
11
The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
TS V5G212 V12 (2016-06)
12
while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
TS V5G212 V12 (2016-06)
13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
TS V5G212 V12 (2016-06)
14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
TS V5G212 V12 (2016-06)
15
22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
TS V5G212 V12 (2016-06)
16
30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
17
25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
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26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
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27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
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28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
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29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
10
srk bc
1 ss
end for k
The filler bits ltNULLgt shall be inserted end of the each code block
for k = Kr ndash Fr ndash 1 to Kr ndash 1 -- Insertion of filler bits to each code block
crk = ltNULLgt
end for k
end for r
5122 Code block segmentation for Turbo code
The input bit sequence to the code block segmentation is denoted by 13210 Bbbbbb where B gt 0 If
B is larger than the maximum code block size Z segmentation of the input bit sequence is performed and
an additional CRC sequence of L = 24 bits is attached to each code block The maximum code block size
is
Z = 6144
If the number of filler bits F calculated below is not 0 filler bits are added to the beginning of the first
block
Note that if B lt 40 filler bits are added to the beginning of the code block
The filler bits shall be set to ltNULLgt at the input to the encoder
Total number of code blocks C is determined by
if ZB
L = 0
Number of code blocks 1C
BB
else
L = 24
Number of code blocks LZBC
LCBB
end if
TS V5G212 V12 (2016-06)
11
The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
TS V5G212 V12 (2016-06)
12
while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
TS V5G212 V12 (2016-06)
13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
TS V5G212 V12 (2016-06)
14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
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5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
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The bits output from code block segmentation for C 0 are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits for the code block number r
Number of bits in each code block (applicable for C 0 only)
First segmentation size K = minimum K in table 513-3 such that BKC
if 1C
the number of code blocks with length K is C =1 0K 0C
else if 1C
Second segmentation size K = maximum K in table 513-3 such that KK
KKK
Number of segments of size K
K
BKCC
Number of segments of size K CCC
end if
Number of filler bits BKCKCF
for k = 0 to F-1 -- Insertion of filler bits
NULLc k0
end for
k = F
s = 0
for r = 0 to C-1
if Cr
KK r
else
KK r
end if
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while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
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LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
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The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
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5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
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while LKk r
srk bc
1 kk
1 ss
end while
if C gt1
The sequence 13210 LKrrrrr rccccc is used to calculate the CRC parity bits
1210 Lrrrr pppp according to section 511 with the generator polynomial gCRC24B(D) For CRC
calculation it is assumed that filler bits if present have the value 0
while rKk
)( rKLkrrk pc
1 kk
end while
end if
0k
end for
513 Channel coding
The bit sequence input for a given code block to channel coding is denoted by 13210 Kccccc where
K is the number of bits to encode After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
for
convolutional scheme and turbo coding schemes and 1D3210 ddddd for LDPC coding scheme where
D is the number of encoded bits per output stream and i indexes the encoder output stream The relation
between kc and )(ikd and between K and D is dependent on the channel coding scheme
The following channel coding schemes can be applied to TrCHs
Tail biting convolutional coding
LDPC coding
Turbo coding
Usage of coding scheme and coding rate for the different types of TrCH is shown in Table 513-1 Usage
of coding scheme and coding rate for the different control information types is shown in Table 513-2
The values of D in connection with each coding scheme
tail biting convolutional coding with rate 13 D = K
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13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
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14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
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25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
TS V5G212 V12 (2016-06)
20
kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
TS V5G212 V12 (2016-06)
21
KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
TS V5G212 V12 (2016-06)
22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
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51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
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52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
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53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
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54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
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59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
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13
LDPC coding with code rate R D = KR
Turbo coding with rate 13 D = K + 4
The range for the output stream index i is 0 1 and 2 for tail biting convolutional coding scheme
Table 513-1 Usage of channel coding scheme and coding rate for TrCHs
TrCH Coding scheme Coding rate
xUL-SCH LDPC coding Turbo coding (optional)
Variable 13 xDL-SCH
xBCH Tail biting convolutional coding
13
Table 513-2 Usage of channel coding scheme and coding rate for control information
Control Information Coding scheme Coding rate
DCI Tail biting convolutional coding
13
UCI Tail biting convolutional coding
13
5131 Tail biting convolutional coding
A tail biting convolutional code with constraint length 7 and coding rate 13 is defined
The configuration of the convolutional encoder is presented in Figure 5131-1
The initial value of the shift register of the encoder shall be set to the values corresponding to the last 6
information bits in the input stream so that the initial and final states of the shift register are the same
Therefore denoting the shift register of the encoder by 5210 ssss then the initial value of the shift
register shall be set to
iKi cs 1
D D D DD D
G0 = 133 (octal)
G1 = 171 (octal)
G2 = 165 (octal)
kc
)0(kd
)1(kd
)2(kd
Figure 5131-1 Rate 13 tail biting convolutional encoder
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14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
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15
22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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16
30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
17
25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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18
24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
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26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
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27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
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28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
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29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
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31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
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32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
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50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
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53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
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14
The encoder output streams)0(
kd )1(
kd and )2(
kd correspond to the first second and third parity
streams respectively as shown in Figure 5131-1
5132 LDPC coding
The K bits including filler bits (c0 c1 c2 hellip cK-1) are encoded based on D-K by D parity check matrix (H)
where D is number of encoded bits and D - K is the number of parity check bits The parity check bits (p0
p1 p2 hellip pD-K -1) are obtained so that H∙ dT
= 0 where d =(c0c1c2 hellip cK-1 p0 p1 p2 hellip pD-K-1) is coded
bits stream
The parity check matrix H is defined as
119867 =
[
11987511988600 11987511988601 11987511988602
11987511988610 11987511988611 11987511988612
11987511988620 11987511988621 11987511988622
⋯119875
1198860119873119897119889119901119888_119887minus2 1198751198860119873119897119889119901119888_119887minus1
1198751198861119873119897119889119901119888_119887minus2 119875
1198861119873119897119889119901119888_119887minus1
1198751198862119873119897119889119901119888_119887minus2 119875
1198862119873119897119889119901119888_119887minus1
⋮ ⋱ ⋮
119875119886119873119901119886119903119894119905119910_119887minus10 119875
119886119873119901119886119903119894119905119910_119887minus11 119875119886119873119901119886119903119894119905119910_119887minus12 ⋯ 119875
119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus2 119875119886119873119901119886119903119894119905119910_119887minus1119873119897119889119901119888_119887minus1]
where Paij (0leiltNparity_b 0lejltNldpc_b) is zero matrix (when aij=-1) or cyclic-permutation matrix obtained from
the Z by Z identity matrix by cyclically shifted the columns to the right by aij elements The value of Z is
shift size obtained by Z = lceil119870119870119898119894119899rceil ∙ 27 where Kmin is given in Table 512-1
The matrix Paij is Z by Z zero matrix when aij is -1 The codeword length D information length K and
number of parity bits D-K is equal to Nldpc_b x Z Kldpc_b x Z and Npairty_b x Z respectively The parameters
Nldpc_b Kldpc_b and Nparity_b according to code rates are depicted in Table 5132-1
Table 5132-1 Parameters of parity check matrix
Code Rate Nldpc_b Kldpc_b Nparity_b
56 24 20 4
34 24 18 6
23 24 16 8
12 24 12 12
The parity check matrix is obtained based on Tables 5132-2 5132-3 5132-4 and 5132-5 which
show the exponents (aij) of parity check matrix when the code rate equals 56 34 23 and 12 for each
encoded bits respectively [6]
Table 5132-2 Matrix exponents for Code rate R=56
(a) D = 648 bits Z = 27 bits
17 13 8 21 9 3 18 12 10 0 4 15 19
2 5 10 26 19 13 13 1 0 -1 -1
3 12 11 14 11 25 5 18 0 9 2 26 26
10 24 7 14 20 4 2 -1 0 0 -1
TS V5G212 V12 (2016-06)
15
22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
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16
30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
17
25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
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26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
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27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
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)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
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29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
15
22 16 4 3 10 21 12 5 21 14 19 5 -1
8 5 18 11 5 5 15 0 -1 0 0
7 7 14 14 4 16 16 24 24 10 1 7 15
6 10 26 8 18 21 14 1 -1 -1 0
(b) D = 1296 bits Z = 54 bits
48 29 37 52 2 16 6 14 53 31 34 5 18
42 53 31 45 -1 46 52 1 0 -1 -1
17 4 30 7 43 11 24 6 14 21 6 39 17
40 47 7 15 41 19 -1 -1 0 0 -1
7 2 51 31 46 23 16 11 53 40 10 7 46
53 33 35 -1 25 35 38 0 -1 0 0
19 48 41 1 10 7 36 47 5 29 52 52 31
10 26 6 3 2 -1 51 1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
13 48 80 66 4 74 7 30 76 52 37 60 -1
49 73 31 74 73 23 -1 1 0 -1 -1
69 63 74 56 64 77 57 65 6 16 51 -1 64
-1 68 9 48 62 54 27 -1 0 0 -1
51 15 0 80 24 25 42 54 44 71 71 9 67
35 -1 58 -1 29 -1 53 0 -1 0 0
16 29 36 41 44 56 59 37 50 24 -1 65 4
65 52 -1 4 -1 73 52 1 -1 -1 0
Table 5132-3 Matrix exponents for R=34
(a) D = 648 bits Z = 27 bits
16 17 22 24 9 3 14 -1 4 2 7 -1 26
-1 2 -1 21 -1 1 0 -1 -1 -1 -1
25 12 12 3 3 26 6 21 -1 15 22 -1 15
-1 4 -1 -1 16 -1 0 0 -1 -1 -1
25 18 26 16 22 23 9 -1 0 -1 4 -1 4
-1 8 23 11 -1 -1 -1 0 0 -1 -1
9 7 0 1 17 -1 -1 7 3 -1 3 23 -1
16 -1 -1 21 -1 0 -1 -1 0 0 -1
24 5 26 7 1 -1 -1 15 24 15 -1 8 -1
13 -1 13 -1 11 -1 -1 -1 -1 0 0
2 2 19 14 24 1 15 19 -1 21 -1 2 -1
24 -1 3 -1 2 1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 40 51 41 3 29 8 36 -1 14 -1 6 -1
33 -1 11 -1 4 1 0 -1 -1 -1 -1
48 21 47 9 48 35 51 -1 38 -1 28 -1 34
-1 50 -1 50 -1 -1 0 0 -1 -1 -1
TS V5G212 V12 (2016-06)
16
30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
17
25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
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24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
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26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
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27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
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)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
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29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
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31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
16
30 39 28 42 50 39 5 17 -1 6 -1 18 -1
20 -1 15 -1 40 -1 -1 0 0 -1 -1
29 0 1 43 36 30 47 -1 49 -1 47 -1 3
-1 35 -1 34 -1 0 -1 -1 0 0 -1
1 32 11 23 10 44 12 7 -1 48 -1 4 -1
9 -1 17 -1 16 -1 -1 -1 -1 0 0
13 7 15 47 23 16 47 -1 43 -1 29 -1 52
-1 2 -1 53 -1 1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
48 29 28 39 9 61 -1 -1 -1 63 45 80 -1
-1 -1 37 32 22 1 0 -1 -1 -1 -1
4 49 42 48 11 30 -1 -1 -1 49 17 41 37
15 -1 54 -1 -1 -1 0 0 -1 -1 -1
35 76 78 51 37 35 21 -1 17 64 -1 -1 -1
59 7 -1 -1 32 -1 -1 0 0 -1 -1
9 65 44 9 54 56 73 34 42 -1 -1 -1 35
-1 -1 -1 46 39 0 -1 -1 0 0 -1
3 62 7 80 68 26 -1 80 55 -1 36 -1 26
-1 9 -1 72 -1 -1 -1 -1 -1 0 0
26 75 33 21 69 59 3 38 -1 -1 -1 35 -1
62 36 26 -1 -1 1 -1 -1 -1 -1 0
Table 5132-4 Matrix exponents for R=23
(a) D = 648 bits Z = 27 bits
25 26 14 -1 20 -1 2 -1 4 -1 -1 8 -1
16 -1 18 1 0 -1 -1 -1 -1 -1 -1
10 9 15 11 -1 0 -1 1 -1 -1 18 -1 8
-1 10 -1 -1 0 0 -1 -1 -1 -1 -1
16 2 20 26 21 -1 6 -1 1 26 -1 7 -1
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
10 13 5 0 -1 3 -1 7 -1 -1 26 -1 -1
13 -1 16 -1 -1 -1 0 0 -1 -1 -1
23 14 24 -1 12 -1 19 -1 17 -1 -1 -1 20
-1 21 -1 0 -1 -1 -1 0 0 -1 -1
6 22 9 20 -1 25 -1 17 -1 8 -1 14 -1
18 -1 -1 -1 -1 -1 -1 -1 0 0 -1
14 23 21 11 20 -1 24 -1 18 -1 19 -1 -1
-1 -1 22 -1 -1 -1 -1 -1 -1 0 0
17 11 11 20 -1 21 -1 26 -1 3 -1 -1 18
-1 26 -1 1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
39 31 22 43 -1 40 4 -1 11 -1 -1 50 -1
-1 -1 6 1 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
17
25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
18
24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
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30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
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Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
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24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
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25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
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27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
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)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
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29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
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31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
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32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
17
25 52 41 2 6 -1 14 -1 34 -1 -1 -1 24
-1 37 -1 -1 0 0 -1 -1 -1 -1 -1
43 31 29 0 21 -1 28 -1 -1 2 -1 -1 7
-1 17 -1 -1 -1 0 0 -1 -1 -1 -1
20 33 48 -1 4 13 -1 26 -1 -1 22 -1 -1
46 42 -1 -1 -1 -1 0 0 -1 -1 -1
45 7 18 51 12 25 -1 -1 -1 50 -1 -1 5
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
35 40 32 16 5 -1 -1 18 -1 -1 43 51 -1
32 -1 -1 -1 -1 -1 -1 -1 0 0 -1
9 24 13 22 28 -1 -1 37 -1 -1 25 -1 -1
52 -1 13 -1 -1 -1 -1 -1 -1 0 0
32 22 4 21 16 -1 -1 -1 27 28 -1 38 -1
-1 -1 8 1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
61 75 4 63 56 -1 -1 -1 -1 -1 -1 8 -1
2 17 25 1 0 -1 -1 -1 -1 -1 -1
56 74 77 20 -1 -1 -1 64 24 4 67 -1 7
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
28 21 68 10 7 14 65 -1 -1 -1 23 -1 -1
-1 75 -1 -1 -1 0 0 -1 -1 -1 -1
48 38 43 78 76 -1 -1 -1 -1 5 36 -1 15
72 -1 -1 -1 -1 -1 0 0 -1 -1 -1
40 2 53 25 -1 52 62 -1 20 -1 -1 44 -1
-1 -1 -1 0 -1 -1 -1 0 0 -1 -1
69 23 64 10 22 -1 21 -1 -1 -1 -1 -1 68
23 29 -1 -1 -1 -1 -1 -1 0 0 -1
12 0 68 20 55 61 -1 40 -1 -1 -1 52 -1
-1 -1 44 -1 -1 -1 -1 -1 -1 0 0
58 8 34 64 78 -1 -1 11 78 24 -1 -1 -1
-1 -1 58 1 -1 -1 -1 -1 -1 -1 0
Table 5132-5 Matrix exponents for R=12
(a) D = 648 bits Z = 27 bits
0 -1 -1 -1 0 0 -1 -1 0 -1 -1 0 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
22 0 -1 -1 17 -1 0 0 12 -1 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
6 -1 0 -1 10 -1 -1 -1 24 -1 0 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
2 -1 -1 0 20 -1 -1 -1 25 0 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
23 -1 -1 -1 3 -1 -1 -1 0 -1 9 11 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
18
24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
19
30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
TS V5G212 V12 (2016-06)
20
kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
TS V5G212 V12 (2016-06)
21
KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
TS V5G212 V12 (2016-06)
22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
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34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
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52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
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53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
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54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
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5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
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18
24 -1 23 1 17 -1 3 -1 10 -1 -1 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
25 -1 -1 -1 8 -1 -1 -1 7 18 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
13 24 -1 -1 0 -1 8 -1 6 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
7 20 -1 16 22 10 -1 -1 23 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
11 -1 -1 -1 19 -1 -1 -1 13 -1 3 17 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
25 -1 8 -1 23 18 -1 14 9 -1 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
3 -1 -1 -1 16 -1 -1 2 25 5 -1 -1 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (b) D = 1296 bits Z = 54 bits
40 -1 -1 -1 22 -1 49 23 43 -1 -1 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
50 1 -1 -1 48 35 -1 -1 13 -1 30 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
39 50 -1 -1 4 -1 2 -1 -1 -1 -1 49 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
33 -1 -1 38 37 -1 -1 4 1 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
45 -1 -1 -1 0 22 -1 -1 20 42 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
51 -1 -1 48 35 -1 -1 -1 44 -1 18 -1 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
47 11 -1 -1 -1 17 -1 -1 51 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
5 -1 25 -1 6 -1 45 -1 13 40 -1 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
33 -1 -1 34 24 -1 -1 -1 23 -1 -1 46 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
1 -1 27 -1 1 -1 -1 -1 38 -1 44 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
-1 18 -1 -1 23 -1 -1 8 0 35 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
49 -1 17 -1 30 -1 -1 -1 34 -1 -1 19 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0 (c) D = 1944 bits Z = 81 bits
57 -1 -1 -1 50 -1 11 -1 50 -1 79 -1 1
0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
3 -1 28 -1 0 -1 -1 -1 55 7 -1 -1 -1
0 0 -1 -1 -1 -1 -1 -1 -1 -1 -1
TS V5G212 V12 (2016-06)
19
30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
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20
kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
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21
KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
19
30 -1 -1 -1 24 37 -1 -1 56 14 -1 -1 -1
-1 0 0 -1 -1 -1 -1 -1 -1 -1 -1
62 53 -1 -1 53 -1 -1 3 35 -1 -1 -1 -1
-1 -1 0 0 -1 -1 -1 -1 -1 -1 -1
40 -1 -1 20 66 -1 -1 22 28 -1 -1 -1 -1
-1 -1 -1 0 0 -1 -1 -1 -1 -1 -1
0 -1 -1 -1 8 -1 42 -1 50 -1 -1 8 -1
-1 -1 -1 -1 0 0 -1 -1 -1 -1 -1
69 79 79 -1 -1 -1 56 -1 52 -1 -1 -1 0
-1 -1 -1 -1 -1 0 0 -1 -1 -1 -1
65 -1 -1 -1 38 57 -1 -1 72 -1 27 -1 -1
-1 -1 -1 -1 -1 -1 0 0 -1 -1 -1
64 -1 -1 -1 14 52 -1 -1 30 -1 -1 32 -1
-1 -1 -1 -1 -1 -1 -1 0 0 -1 -1
-1 45 -1 70 0 -1 -1 -1 77 9 -1 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 0 0 -1
2 56 -1 57 35 -1 -1 -1 -1 -1 12 -1 -1
-1 -1 -1 -1 -1 -1 -1 -1 -1 0 0
24 -1 61 -1 60 -1 -1 27 51 -1 -1 16 1
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 0
5133 Turbo coding
51331 Turbo encoder
The scheme of turbo encoder is a Parallel Concatenated Convolutional Code (PCCC) with two 8-state
constituent encoders and one turbo code internal interleaver The coding rate of turbo encoder is 13
The structure of turbo encoder is illustrated in figure 51331-1
The transfer function of the 8-state constituent code for the PCCC is
G(D) =
where
g0(D) = 1 + D2 + D
3
g1(D) = 1 + D + D3
The initial value of the shift registers of the 8-state constituent encoders shall be all zeros when starting to
encode the input bits
The output from the turbo encoder is
kk xd )0(
)(
)(1
0
1
Dg
Dg
TS V5G212 V12 (2016-06)
20
kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
TS V5G212 V12 (2016-06)
21
KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
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22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
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rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
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31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
20
kk zd )1(
kk zd )2(
for 1210 Kk
If the code block to be encoded is the 0-th code block and the number of filler bits is greater than zero
ie F gt 0 then the encoder shall set ck = 0 k = 0hellip(F-1) at its input and shall set NULLdk)0( k =
0hellip(F-1) and NULLdk)1( k = 0hellip(F-1) at its output
The bits input to the turbo encoder are denoted by 13210 Kccccc and the bits output from the first
and second 8-state constituent encoders are denoted by 13210 Kzzzzz and 13210 Kzzzzz
respectively The bits output from the turbo code internal interleaver are denoted by 110 Kccc and
these bits are to be the input to the second 8-state constituent encoder
DD D
DD D
Input
Turbo code internal
interleaverOutput
Output
1st constituent encoder
2nd constituent encoder
kc
kc
kx
kx
kz
kz
Figure 51331-1 Structure of rate 13 turbo encoder (dotted lines apply for trellis termination only)
51332 Trellis termination for turbo encoder
Trellis termination is performed by taking the tail bits from the shift register feedback after all information
bits are encoded Tail bits are padded after the encoding of information bits
The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure
51321-1in lower position) while the second constituent encoder is disabled The last three tail bits shall
be used to terminate the second constituent encoder (lower switch of figure 51321-1 in lower position)
while the first constituent encoder is disabled
The transmitted bits for trellis termination shall then be
KK xd )0(
1)0(1 KK zd KK xd
)0(2
1)0(3
KK zd
TS V5G212 V12 (2016-06)
21
KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
TS V5G212 V12 (2016-06)
22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
21
KK zd )1(
2)1(
1 KK xd KK zd )1(
2 2)1(
3 KK xd
1)2(
KK xd 2)2(1 KK zd 1
)2(2
KK xd 2)2(3
KK zd
51333 Turbo code internal interleaver
The bits input to the turbo code internal interleaver are denoted by 110 Kccc where K is the number
of input bits The bits output from the turbo code internal interleaver are denoted by 110 Kccc
The relationship between the input and output bits is as follows
ii cc i=0 1hellip (K-1)
where the relationship between the output index i and the input index )(i satisfies the following
quadratic form
Kififi mod)( 221
The parameters 1f and 2f depend on the block size K and are summarized in Table 51333-3
Table 51333-3 Turbo code internal interleaver parameters
i K 1f 2f i K 1f 2f i K 1f 2f I K 1f 2f
1 40 3 10 48 416 25 52 95 1120 67 140 142 3200 111 240
2 48 7 12 49 424 51 106 96 1152 35 72 143 3264 443 204
3 56 19 42 50 432 47 72 97 1184 19 74 144 3328 51 104
4 64 7 16 51 440 91 110 98 1216 39 76 145 3392 51 212
5 72 7 18 52 448 29 168 99 1248 19 78 146 3456 451 192
6 80 11 20 53 456 29 114 100 1280 199 240 147 3520 257 220
7 88 5 22 54 464 247 58 101 1312 21 82 148 3584 57 336
8 96 11 24 55 472 29 118 102 1344 211 252 149 3648 313 228
9 104 7 26 56 480 89 180 103 1376 21 86 150 3712 271 232
10 112 41 84 57 488 91 122 104 1408 43 88 151 3776 179 236
11 120 103 90 58 496 157 62 105 1440 149 60 152 3840 331 120
12 128 15 32 59 504 55 84 106 1472 45 92 153 3904 363 244
13 136 9 34 60 512 31 64 107 1504 49 846 154 3968 375 248
14 144 17 108 61 528 17 66 108 1536 71 48 155 4032 127 168
15 152 9 38 62 544 35 68 109 1568 13 28 156 4096 31 64
16 160 21 120 63 560 227 420 110 1600 17 80 157 4160 33 130
17 168 101 84 64 576 65 96 111 1632 25 102 158 4224 43 264
18 176 21 44 65 592 19 74 112 1664 183 104 159 4288 33 134
19 184 57 46 66 608 37 76 113 1696 55 954 160 4352 477 408
20 192 23 48 67 624 41 234 114 1728 127 96 161 4416 35 138
21 200 13 50 68 640 39 80 115 1760 27 110 162 4480 233 280
22 208 27 52 69 656 185 82 116 1792 29 112 163 4544 357 142
23 216 11 36 70 672 43 252 117 1824 29 114 164 4608 337 480
24 224 27 56 71 688 21 86 118 1856 57 116 165 4672 37 146
25 232 85 58 72 704 155 44 119 1888 45 354 166 4736 71 444
TS V5G212 V12 (2016-06)
22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
22
26 240 29 60 73 720 79 120 120 1920 31 120 167 4800 71 120
27 248 33 62 74 736 139 92 121 1952 59 610 168 4864 37 152
28 256 15 32 75 752 23 94 122 1984 185 124 169 4928 39 462
29 264 17 198 76 768 217 48 123 2016 113 420 170 4992 127 234
30 272 33 68 77 784 25 98 124 2048 31 64 171 5056 39 158
31 280 103 210 78 800 17 80 125 2112 17 66 172 5120 39 80
32 288 19 36 79 816 127 102 126 2176 171 136 173 5184 31 96
33 296 19 74 80 832 25 52 127 2240 209 420 174 5248 113 902
34 304 37 76 81 848 239 106 128 2304 253 216 175 5312 41 166
35 312 19 78 82 864 17 48 129 2368 367 444 176 5376 251 336
36 320 21 120 83 880 137 110 130 2432 265 456 177 5440 43 170
37 328 21 82 84 896 215 112 131 2496 181 468 178 5504 21 86
38 336 115 84 85 912 29 114 132 2560 39 80 179 5568 43 174
39 344 193 86 86 928 15 58 133 2624 27 164 180 5632 45 176
40 352 21 44 87 944 147 118 134 2688 127 504 181 5696 45 178
41 360 133 90 88 960 29 60 135 2752 143 172 182 5760 161 120
42 368 81 46 89 976 59 122 136 2816 43 88 183 5824 89 182
43 376 45 94 90 992 65 124 137 2880 29 300 184 5888 323 184
44 384 23 48 91 1008 55 84 138 2944 45 92 185 5952 47 186
45 392 243 98 92 1024 31 64 139 3008 157 188 186 6016 23 94
46 400 151 40 93 1056 17 66 140 3072 47 96 187 6080 47 190
47 408 155 102 94 1088 171 204 141 3136 13 28 188 6144 263 480
514 Rate matching
5141 Rate matching for LDPC coded transport channels
The rate matching for LDPC coded transport channels is defined per coded bit stream dk The sequence
of bits ek for transmission is generated according to below
Denoting by E the rate matching output sequence length for the r-th coded block the rate matching
output bit sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM and 6 for 64QAM and where
[FFS NL is equal to the number of layers a transport block is mapped onto]
Set CG mod where C is the number of code blocks computed in section 5121
if 119903 lt 120574
set 119864 = 119873119871 ∙ 119876119898 ∙ lceil119866prime119862rceil
else
set 119864 = 119873119871 ∙ 119876119898 ∙ lfloor119866prime119862rfloor
end if
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
23
Set 00 k
Set k = 0 and j = 0
while k lt E
if 119889(1198960+119895) mod 119863 nelt NULL gt
119890119896 = 119889(1198960+119895) mod 119863
k = k +1
end if
j = j +1
end while
5142 Rate matching for convolutionally coded transport channels and control information
The rate matching for convolutionally coded transport channels and control information consists of
interleaving the three bit streams )0(
kd )1(
kd and )2(
kd followed by the collection of bits and the
generation of a circular buffer as depicted in Figure 5142-1 The output bits are transmitted as
described in section 51422
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5142-1 Rate matching for convolutionally coded transport channels and control information
The bit stream )0(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51421
The bit stream )1(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
24
The bit stream )2(
kd is interleaved according to the sub-block interleaver defined in section 51421 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51422
51421 Sub-block interleaver
The bits input to the block interleaver are denoted by)(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
[1] Assign 32CCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1CCsubblockC from left to right
[2] Determine the number of rows of the matrixCCsubblockR by finding minimum integer
CCsubblockR such
that
CCsubblock
CCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1CC
subblockR from top to bottom
[3] If DCR CCsubblock
CCsubblock then DCRN CC
subblockCCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written
into the CCsubblock
CCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
Perform the inter-column permutation for the matrix based on the pattern 110 CCsubblockCj
jP that is
shown in table 514-2 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted CCsubblock
CCsubblock CR matrix is equal to
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
25
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted CCsubblock
CCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to CCsubblockCP
y)0(
hellip and CCsubblock
CCsubblock CRK
Table 514-2 Inter-column permutation pattern for sub-block interleaver
Number of columns CCsubblockC
Inter-column permutation pattern
)1()1()0( CCsubblockCPPP
32 lt 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 gt
51422 Bit collection selection and transmission
The circular buffer of length KKw 3 is generated as follows
)0(kk vw for k = 0hellip 1K
)1(kkK vw
for k = 0hellip 1K
)2(2 kkK vw
for k = 0hellip 1K
Denoting by E the rate matching output sequence length the rate matching output bit sequence is ke k =
01 1E
Set k = 0 and j = 0
while k lt E
if NULLwwKj mod
wKjk we mod
k = k +1
end if
j = j +1
end while
5143 Rate matching for turbo coded transport channels
The rate matching for turbo coded transport channels is defined per coded block and consists of
interleaving the three information bit streams )0(kd )1(
kd and )2(kd followed by the collection of bits and the
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
26
generation of a circular buffer as depicted in Figure 5143-1 The output bits for each code block are
transmitted as described in section 51432
Sub-block
interleaver
Sub-block
interleaver
Sub-block
interleaver
Bit
collection
virtual circular
buffer
Bit selection
and pruning
)0(kd
)1(kd
)2(kd
ke
)0(kv
)1(kv
)2(kv
kw
Figure 5143-1 Rate matching for turbo coded transport channels
The bit stream )0(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as )0(
1
)0(2
)0(1
)0(0
Kvvvv and where K is defined in section 51431
The bit stream )1(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)1(
1
)1(2
)1(1
)1(0
Kvvvv
The bit stream )2(kd is interleaved according to the sub-block interleaver defined in section 51431 with
an output sequence defined as)2(
1
)2(2
)2(1
)2(0
Kvvvv
The sequence of bits ke for transmission is generated according to section 51432
51431 Sub-block interleaver
The bits input to the block interleaver are denoted by )(1
)(2
)(1
)(0
iD
iiidddd where D is the number of bits
The output bit sequence from the block interleaver is derived as follows
Assign 32TCsubblockC to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1TCsubblockC from left to right
Determine the number of rows of the matrixTCsubblockR by finding minimum integer TC
subblockR such that
TCsubblock
TCsubblock CRD
The rows of rectangular matrix are numbered 0 1 2hellip 1TCsubblockR from top to bottom
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
27
If DCR TCsubblock
TCsubblock then DCRN TC
subblockTCsubblockD dummy bits are padded such that yk =
ltNULLgt for k = 0 1hellip ND - 1 Then )(ikkN dy
D k = 0 1hellip D-1 and the bit sequence yk is written into
the TCsubblock
TCsubblock CR matrix row by row starting with bit y0 in column 0 of row 0
)1(2)1(1)1()1(
1221
1210
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
For )0(kd and )1(
kd
Perform the inter-column permutation for the matrix based on the pattern 110 TCsubblockCj
jP that is
shown in table 51431-1 where P(j) is the original column position of the j-th permuted column After
permutation of the columns the inter-column permuted TCsubblock
TCsubblock CR matrix is equal to
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
TCsubblock
CRCPCRPCRPCRP
CCPCPCPCP
CPPPP
yyyy
yyyy
yyyy
)1()1()1()2()1()1()1()0(
)1()2()1()0(
)1()2()1()0(
The output of the block interleaver is the bit sequence read out column by column from the inter-column
permuted TCsubblock
TCsubblock CR matrix The bits after sub-block interleaving are denoted by
)(
1
)(2
)(1
)(0
i
K
iiivvvv
where )(
0i
v corresponds to )0(Py )(1i
v to TCsubblockCP
y)0(
hellip and TCsubblock
TCsubblock CRK
For )2(kd
The output of the sub-block interleaver is denoted by)2(
1
)2(2
)2(1
)2(0
Kvvvv where )(
)2(kk yv and where
KRkC
R
kPk TC
subblockTCsubblockTC
subblock
mod1mod)(
The permutation function P is defined in Table 514-1
Table 51431-1 Inter-column permutation pattern for sub-block interleaver
Number of columns TCsubblockC
Inter-column permutation pattern
)1()1()0( TCsubblockCPPP
32 lt 0 16 8 24 4 20 12 28 2 18 10 26 6 22 14 30 1 17 9 25 5 21 13 29 3 19 11 27 7 23 15 31 gt
51432 Bit collection selection and transmission
The circular buffer of length KKw 3 for the r-th coded block is generated as follows
)0(kk vw for k = 0hellip 1K
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
28
)1(2 kkK vw
for k = 0hellip 1K
)2(12 kkK vw
for k = 0hellip 1K
Denote the soft buffer size for the transport block by NIR bits and the soft buffer size for the r-th code block
by Ncb bits The size Ncb is obtained as follows where C is the number of code blocks computed in
section 512
-
w
IRcb K
C
NN min for xDL-SCH transport channels
- wcb KN for xUL-SCH transport channels
where NIR is equal to
limitDL_HARQMIMO min MMKK
NN
C
soft
IR
where
Nsoft is the total number of soft channel bits [FFS]
KMIMO is equal to 2 if [FFS condition] and is equal to 1 otherwise
MDL_HARQ is the maximum number of DL HARQ processes as defined in section 7 of [3]
Mlimit is a constant equal to [FFS]
Denoting by E the rate matching output sequence length for the r-th coded block and rvidx the
redundancy version number for this transmission (rvidx = 0 1 2 or 3) the rate matching output bit
sequence is ke k = 01 1E
Define by G the total number of bits available for the transmission of one transport block
Set mL QNGG where Qm is equal to 2 for QPSK 4 for 16QAM 6 for 64QAM and where
- For transmit diversity
- NL is equal to 2
- Otherwise
- NL is equal to the number of layers a transport block is mapped onto
Set CG mod where C is the number of code blocks computed in section 512
if 1 Cr
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
29
set CGQNE mL
else
set CGQNE mL
end if
Set
2
820 idxTC
subblock
cbTCsubblock rv
R
NRk where
TCsubblockR
is the number of rows defined in section
51411
Set k = 0 and j = 0
while k lt E
if NULLwcbNjk mod)( 0
cbNjkk we mod)( 0
k = k +1
end if
j = j +1
end while
515 Code block concatenation
The input bit sequence for the code block concatenation block are the sequences rke for 10 Cr
and 10 rEk The output bit sequence from the code block concatenation block is the sequence kf
for 10 Gk
The code block concatenation consists of sequentially concatenating the rate matching outputs for the
different code blocks Therefore
Set 0k and 0r
while Cr
Set 0j
while rEj
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
30
rjk ef
1 kk
1 jj
end while
1 rr
end while
52 Uplink transport channels and control information
521 Random access channel
The sequence index for the random access channel is received from higher layers and is processed
according to [2]
522 Uplink shared channel
The processing structure for the xUL-SCH transport channel on one UL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding of data and control information
Rate matching
Code block concatenation
Multiplexing of data and control information
Channel interleaver
The coding steps for one xUL-SCH transport block are shown in the figure below The same general
processing applies for each xUL-SCH transport block
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
31
Code block segmentation
(CRC attachment)
Channel coding
Transport blockCRC attachment
1B10 bbb
Rate matching
Data and Control multiplexing [FFS]
Channel Interleaver [FFS]
1A10 aaa
)1( Krrr1r0 ccc
)1( Drrr1r0 ddd
)1( Errr1r0 eee
1G10 fff
Code blockConcatenation
1H10ggg
ChannelCoding [FFS]
ChannelCoding [FFS]
ChannelCoding [FFS]
][ )1( O10 ooo
1 CQIL QN10 qqq
][110
RI
O
RIRIRIooo
][110
ACK
O
ACKACKACKooo
RI
Q
RI
1
RI
0 RI
qqq1
ACK
Q
ACK
1
ACK
0 ACK
qqq1
1 RIL QNH10 hhh
Figure 522-1 Transport block processing for xUL-SCH
5221 Transport block CRC attachment
Error detection is provided on each xUL-SCH transport block through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the xUL-SCH transport block according to section 511
setting L to 24 bits and using the generator polynomial gCRC24A(D)
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
32
5222 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5223 Channel coding of xUL-SCH
Code blocks are delivered to the channel coding block The bits in a code block are denoted by
13210 rKrrrrr ccccc where r is the code block number and Kr is the number of bits in code block
number r The total number of code blocks is denoted by C and each code block is individually LDPC or
turbo (as optional) encoded according to section 5132 or section 5133
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and where rD is
the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5224 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5225 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by 13210 Gfffff where G is the total number
of coded bits for transmission of the given transport block over LN transmission layers excluding the bits
used for control transmission when control information is multiplexed with the xUL-SCH transmission
5226 Channel coding for UCI
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) and
rank indication and beam-related information (beam state information (BSI) and beam refined information
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
33
(BRI)) Different coding rates for the control information are achieved by allocating different number of
coded symbols for its transmission When control data are transmitted in the xPUSCH the channel
coding for rank indication beam-related information and channel quality information 1210 Ooooo is
done independently
When the UE transmits rank indicator bits it shall determine the number of coded modulation symbols per
layer Q for rank indicator bits as follows
Only one transport block is transmitted in the xPUSCH conveying the rank indicator bits
1
0
min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH
sc symbC
rr
O M NQ M N
K
where
O is the number of rank indicator bits and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current subframe for the transport
block expressed as a number of subcarriers in [2] where a number of subcarriers used for PCRS
transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols per subframe for xPUSCH transmission in the current
subframe for the transport block respectively where symbol(s) that DMRS is mapped on is not
counted
xPUSCH-initial
symbN xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no initial xPDCCH for the same transport block C and rK shall be determined from
ndash the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For rank indication RI mQ Q Q and xPUSCH RI
offset offset where mQ is the modulation order of a given
transport block and RI
offset shall be determined according to [3]
For rank indication (RI)
If RI feedback consists of 1-bit of information ie 0[ ]RIo it is first encoded according to Table 5226-3
The 0[ ]RIo to RI mapping is given by Table 5226-4
Table 5226-1 Encoding of 1-bit RI
Qm Encoded RI
2 y] [ 0
RIo
4 y x x] [ 0
RIo
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
34
6 ]y x x x x [ 0
RIo
Table 5226-2 0
RIo to RI mapping
0
RIo RI
0 1
1 2
The ldquoxrdquo and ldquoyrdquo in Table 5226-1 are placeholders for [2] to scramble the RI bit in a way that maximizes
the Euclidean distance of the modulation symbols carrying rank information
For the case where RI feedback consists of one bit of information the bit sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q is
obtained by concatenation of multiple encoded RI blocks where RIQ is the total number of coded bits for
all the encoded RI blocks The last concatenation of the encoded RI block may be partial so that the total bit sequence length is equal to
RIQ
When rank information is to be multiplexed with xUL-SCH at a given xPUSCH the rank information is
multiplexed in all layers of transport block of that xPUSCH For a given transport block the vector
sequence output of the channel coding for rank information is denoted by 0 1 1
RI
RI RI RI
Qq q q
where RI
iq
0 1RIi Q are column vectors of length ( )m LQ N and where RI RI mQ Q Q The vector sequence is
obtained as follows
Set i j k to 0
while RIQi
] [ˆ1
RIQi
RIi
RI
k mqqq -- temporary row vector
T
N
RI
k
RI
k
RI
k
L
qqq ]ˆˆ[
-- replicating the row vector RI
kq NL times and transposing into a column vector
mQii
1 kk
end while
where LN is the number of layers onto which the xUL-SCH transport block is mapped
For channel quality control information (CQI andor PMI andor BSI andor BRI denoted as
CQIPMIBSIBRI)
When the UE transmits channel quality control information bits it shall determine the number of
modulation coded symbols per layer Q for channel quality information and beam related information as
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
35
1
0
( )min
xPUSCH initial xPUSCH initial xPUSCH
sc symb offset xPUSCH xPUSCH RIsc symbC
mr
r
O L M N QQ M N
QK
where
O is the number of CQIPMIBSIBRI bits and
L is the number of CRC bits given by
otherwise8
110 OL and
CQI m
Q QQ and xPUSCH CQI
offset offset where CQI
offset shall be determined according to [3] depending on
the number of transmission codewords for the corresponding xPUSCH
If RI is not transmitted then or 0RIQ respectively
xPUSCH initial
symbN
xPUSCH initial
scM C and rK are obtained from the initial xPDCCH for the same transport
block If there is no xPDCCH for the same transport block xPUSCH initial
scM C and rK shall be determined
from
the random access response grant for the same transport block when the xPUSCH is initiated by
the random access response grant
For xUL-SCH data information xPUSCH xPUSCH
symb scL m CQI RIG N N M Q Q Q where
LN is the number of layers the corresponding xUL-SCH transport block is mapped onto and
xPUSCH
scM is the scheduled bandwidth for xPUSCH transmission in the current sub-frame for the
transport block where the subcarriers used for PCRS transmission are not counted and
xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission sub-frame block
obtained from the xPDCCH for the same transport block where symbol(s) that DMRS is mapped
on are not counted
If the CQIPMIBSIBRI payload size is less than or equal to 11 bits the channel coding of the channel
quality information is performed according to section 52263 with input sequence 0 1 2 1 Oo o o o
For CQIPMIBSIBRI payload sizes greater than 11 bits the CRC attachment channel coding and rate
matching of the channel quality information is performed according to sections 511 5131 and 5142
respectively The input bit sequence to the CRC attachment operation is 0 1 2 1 Oo o o o The output bit
sequence of the CRC attachment operation is the input bit sequence to the channel coding operation
The output bit sequence of the channel coding operation is the input bit sequence to the rate matching
operation
The output sequence for the channel coding of channel quality information is denoted by
0 1 2 3 1 L CQIN Qq q q q q where
LN is the number of layers the corresponding xUL-SCH transport block is
mapped onto
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
36
52261 Channel quality information formats for wideband CQI reports
Table 52261-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions
Table 52261-1 Fields for channel quality information feedback for one wideband CQI report
Field Bit width
Rank = 1 Rank = 2 No PMI
Wideband CQI 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The bit width of PMI depends on the number of the corresponding CSI-RS port for 248 Tx ports the bit
width of PMI is equal to 2 bits 4bits and 8bits respectively
In the case when BSI is sent together on xPUSCH with CQIPMI the bits defined in Table 52261-2 are
appended at the end of the sequence N is configured by the higher layers
Table 52261-2 Fields for BSI feedback for wideband report
Field Bit width
Beam index 9N
Wide-band BRSRP 7N
In the case when BRI is sent together on xPUSCH with CQIPMI and BSI the bits defined in Table
52261-3 are appended at the end of the sequence N is configured by the higher layers
Table 52261-3 Fields for BRI feedback for one wideband report
Field Bit width
BRRS-RI 3N
Wide-band BRRS-RP 7N
The channel quality and beam related information bits in Table 52261-1 52261-2 and 52261-3
form the bit sequence 1210 Ooooo with 0o corresponding to the first bit of the first field in the table
1o corresponding to the second bit of the first field in the table and 1Oo corresponding to the last bit in
the last field in the table The first bit of each field corresponds to MSB and the last bit LSB The RI bit
sequence in Table 52261-1 is encoded according to section 5226
52262 Channel coding for CQIPMI information in xPUSCH
The channel quality andor beam related information bits input to the channel coding block are denoted by
13210 Oooooo where O is the number of bits The number of channel quality and beam related
information bits depends on the transmission format When xPUCCH-based reporting format is used the
number of CQIPMI bits is defined in section 52331 for wideband reports When xPUSCH-based
reporting format is used the number of CQIPMI bits is defined in section 52261 for wideband reports
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
37
The channel quality andor beam related information is first coded using a (32 O) block code The code
words of the (32 O) block code are a linear combination of the 11 basis sequences denoted Min and
defined in Table 52263-1
Table 52263-1 Basis sequences for (32 O) code
i Mi0 Mi1 Mi2 Mi3 Mi4 Mi5 Mi6 Mi7 Mi8 Mi9 Mi10
0 1 1 0 0 0 0 0 0 0 0 1
1 1 1 1 0 0 0 0 0 0 1 1
2 1 0 0 1 0 0 1 0 1 1 1
3 1 0 1 1 0 0 0 0 1 0 1
4 1 1 1 1 0 0 0 1 0 0 1
5 1 1 0 0 1 0 1 1 1 0 1
6 1 0 1 0 1 0 1 0 1 1 1
7 1 0 0 1 1 0 0 1 1 0 1
8 1 1 0 1 1 0 0 1 0 1 1
9 1 0 1 1 1 0 1 0 0 1 1
10 1 0 1 0 0 1 1 1 0 1 1
11 1 1 1 0 0 1 1 0 1 0 1
12 1 0 0 1 0 1 0 1 1 1 1
13 1 1 0 1 0 1 0 1 0 1 1
14 1 0 0 0 1 1 0 1 0 0 1
15 1 1 0 0 1 1 1 1 0 1 1
16 1 1 1 0 1 1 1 0 0 1 0
17 1 0 0 1 1 1 0 0 1 0 0
18 1 1 0 1 1 1 1 1 0 0 0
19 1 0 0 0 0 1 1 0 0 0 0
20 1 0 1 0 0 0 1 0 0 0 1
21 1 1 0 1 0 0 0 0 0 1 1
22 1 0 0 0 1 0 0 1 1 0 1
23 1 1 1 0 1 0 0 0 1 1 1
24 1 1 1 1 1 0 1 1 1 1 0
25 1 1 0 0 0 1 1 1 0 0 1
26 1 0 1 1 0 1 0 0 1 1 0
27 1 1 1 1 0 1 0 1 1 1 0
28 1 0 1 0 1 1 1 0 1 0 0
29 1 0 1 1 1 1 1 1 1 0 0
30 1 1 1 1 1 1 1 1 1 1 1
31 1 0 0 0 0 0 0 0 0 0 0
The encoded CQIPMI block is denoted by 13210 Bbbbbb where 32B and
1
0
2modO
n
nini Mob where i = 0 1 2 hellip B-1
The output bit sequence 0 1 2 3 1
L CQIN Qq q q q q is obtained by circular repetition of the encoded
CQIPMI block as follows
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
38
Bii bq mod where i = 0 1 2 hellip NLQCQI-1 where NL is the number of layers the corresponding
xUL-SCH transport block is mapped onto
5227 Data and control multiplexing
The control and data multiplexing is performed such that the multiplexing ensures control and data
information are mapped to different modulation symbols
The inputs to the data and control multiplexing are the coded bits of the control information denoted by
13210 CQIL QNqqqqq where mCQICQI QQQ and the coded bits of the xUL-SCH denoted by
13210 Gfffff The output of the data and control multiplexing operation is denoted by
13210
Hggggg where CQIL QNGH and mL QNHH and where
ig 10 Hi
are column vectors of length Lm NQ H is the total number of coded bits allocated for xUL-SCH data
and CQIPMIBSIBRI information across the LN transmission layers of the transport block
In the case of single transport block transmission and assuming that LN is the number of layers onto
which the xUL-SCH transport block is mapped the control information and the data shall be multiplexed
as follows
Set i j k to 0
while CQIL QNj -- first place the control information
TQNjjk mL
qqg ] [1
mL QNjj
1 kk
end while
while Gi -- then place the data
TNQiik Lm
ffg ] [ 1
Lm NQii
1 kk
end while
5228 Channel interleaver
The channel interleaver described in this section in conjunction with the resource element mapping for
xPUSCH in [2] implements a time-first mapping of control modulation symbols and frequency-first
mapping of data modulation symbols onto the transmit waveform
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
39
The inputs to the channel interleaver are denoted by 1210
H
gggg ACK
Q
ACKACKACK
ACK
qqqq1210
andRI
Q
RIRIRI
RIqqqq
1210
The number of modulation symbols per layer in the subframe is given by total RIH H Q The output bit
sequence from the channel interleaver is derived as follows
[1] Assign PUSCHsymbNCmux to be the number of columns of the matrix The columns of the matrix are
numbered 0 1 2hellip 1muxC from left to right PUSCHsymbN is determined according to section 5226
[2] The number of rows of the matrix is muxLmtotalmux CNQHR and define
Lmmuxmux NQRR
The rows of the rectangular matrix are numbered 0 1 2hellip 1muxR from top to bottom
)1(2)1(1)1()1(
1221
1210
muxmuxmuxmuxmuxmuxmuxmux
muxmuxmuxmux
mux
CRCRCRCR
CCCC
C
yyyy
yyyy
yyyy
[3] If rank information is transmitted in this subframe the vector sequence 0 1 2 1
RI
RI RI RI RI
Qq q q q
is
written into the muxmux CR matrix by sets of Lm NQ rows starting with the vector 0
y in
column 0 and rows 0 to 1 Lm NQ according to the following pseudo-code
Set i to 0
while i lt RIQ
RI
i iy q
1 ii
end while
[4] Write the portion of the input vector sequence containing CQIPMIBSIBRI information
1210
CQIQgggg into the muxmux CR matrix according to the following pseudo-code
Set i to 0
while i ltCQIQ
RIi Q i
y g
1 ii
end while
[5] Write the remaining portion of the input vector sequence containing the xUL-SCH data
121
HQQQgggg
CQICQICQI
into the muxmux CR matrix column by column starting with the
vector 0
y and moving downward skipping the matrix entries that are already occupied
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
40
[6] The output of the block interleaver is the bit sequence read out column by column from the
muxmux CR matrix The bits after channel interleaving are denoted by 1210 Lmtotal NQHhhhh
where NL is the number of layers the corresponding xUL-SCH transport block is mapped onto
523 Uplink control information on xPUCCH
Data arrives to the coding unit in the form of indicators for scheduling request HARQ acknowledgement
(HARQ-ACK) rank indicator channel quality information (CQIPMI) and beam related information (BSI or
BRI)
One form of channel coding is used as shown in Figure 523-1 for HARQ-ACK transmitted on xPUCCH
format 1a1b and for at least one or combination of HARQ-ACK rank indicator the channel quality
information (CQIPMI) and beam related information (BSI or BRI) transmitted on xPUCCH format 2
110 Aaaa
110 Bbbb
Channel coding
Figure 523-1 Processing for UCI
5231 Channel coding for UCI HARQ-ACK
The HARQ-ACK bits are received from higher layers for each subframe HARQ-ACK consists of 1-bit of
information ie 0b corresponding to ACKNACK bit for codeword 0 Each positive acknowledgement
(ACK) is encoded as a binary lsquo1rsquo and each negative acknowledgement (NACK) is encoded as a binary lsquo0rsquo
For the case where xPUCCH format 2 [2] is scheduled [3] the HARQ-ACK feedback consists of the
concatenation of HARQ-ACK bits which the UE needs to feedback for downlink subframes For all cells 1
bit of HARQ-ACK information ka is used The HARQ-ACK bits are processed for transmission according
to section 111 [3]
Define xPUCCH format 2
A NN as the number of HARQ-ACK bits when xPUCCH format 2 is used for transmission
of HARQ-ACK feedback (section 111 in [3])
The sequence of bits 1210 2format xPUCCH
NAN
aaaa is obtained from the HARQ-ACK bits for different
downlink subframes
Define DL
cB as the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits in
cell c as defined in Section 73 of [3]
The number of HARQ-ACK bits for the UE to convey is computed as follows
Set k = 0 ndash counter of HARQ-ACK bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
41
set l = 0 ndash counter of downlink subframes
while l lt DL
cB
1 bit HARQ-ACK feedback for this cell
k = k + 1
l = l+1
end while
The sequence of bits xPUCCH format 2
0 1 2 1
A NNa a a a
is encoded as follows
xPUCCH format 2
1
0
mod 2A NN
i n i nn
b a M
where i = 0 1 2 hellip 31 and the basis sequences niM are defined in Table 52263-1
The output bit sequence 1210 Bbbbb is obtained by circular repetition of the sequence
31210
~
~
~
~bbbb
32mod
~ii bb
where i = 0 1 2 hellip B-1 and where RB
sc8B N
5232 Channel coding for UCI channel quality information
The channel quality bits input to the channel coding block are denoted by 13210 Aaaaaa where A is
the number of bits The number of channel quality bits depends on the transmission format as indicated in
section 52331 for wideband reports
For the channel quality information bits 13210 Aaaaaa channel coding defined in section 5231
shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel
coding
52321 Channel quality information formats for wideband reports
Table 52321-1 shows the fields and the corresponding bit widths for the channel quality information
feedback for wideband reports for xPDSCH transmissions The bit width of precoding matrix depends on
the number of the corresponding CSI-RS port ie for 248 Tx antenna ports the bit width of PMI is
equal to 2 bits 4 bits and 8 bits respectively
Table 52321-1 Fields for channel quality information feedback for one wideband CQI reports
Field Bit width
Rank = 1 Rank = 2 No PMI
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
42
Wideband CQI for codeword 0 4 4 4
Precoding matrix indicator (PMI) 248 248 0
Rank indication (RI) 1 1 0
The channel quality bits in Table 52321-1 form the bit sequence 13210 Aaaaaa with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5233 Channel coding for UCI beam-related information
The beam-related information (BSI or BRI) bits input to the channel coding block are denoted by
0 1 2 3 1 Aa a a a a where A is the number of bits The number of BSI information bits for wideband report
is given in section 52341 and the number of BRI information bits for wideband report is given in section
52342
For the beam-related information (BSI or BRI) bits 13210 Aaaaaa channel coding defined in section
5231 shall be applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the
channel coding
52331 Beam state information format for wideband report
Table 52331-1 shows the fields and the corresponding bit widths for the BSI feedback for wideband
report
Table 52331-1 Fields for BSI feedback for one wideband report
Field Bit width
BRS index 9
Wide-band BRSRP 7
The BSI information bits in Table 52341-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
52332 Beam refinement information format for wideband report
Table 52322-1 shows the fields and the corresponding bit widths for the BRI feedback for wideband
report
Table 52332-1 Fields for BRI feedback for one wideband report
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
43
Field Bit width
BRRS index 3
Wide-band BRRS-RP 7
The BRI information bits in Table 52342-1 form the bit sequence 0 1 2 3 1 Aa a a a a with 0a
corresponding to the first bit of the first field in each of the tables 1a corresponding to the second bit of
the first field in each of the tables and 1Aa corresponding to the last bit in the last field in each of the
tables The first bit corresponds to MSB and the last bit LSB
5234 Channel coding for multiple UCIs
When the UE has to simultaneously transmit multiple UCIs on xPUCCH in a subframe the UCIs shall be
combined into a single stream of bits 0 1 2 3 1 Aa a a a a in the order of HARQ-ACK bits scheduling
request bit rank indicator bit channel quality information bits beam state information bits and beam
refinement information bits starting from 0 1 2 3 1 Aa a a a a
For the combined information bits 13210 Aaaaaa channel coding defined in section 5231 shall be
applied The output bit sequence 0 1 2 1 Bb b b b where RB
sc8B N is obtained after the channel coding
524 Uplink control information on xPUSCH without xUL-SCH data
When control data are sent via xPUSCH without xUL-SCH data the following coding steps can be
identified
Channel coding of control information
Control information mapping
Channel interleaver
5241 Channel coding of control information
Control data arrives at the coding unit in the form of channel quality information (CQI andor PMI) beam
related information (BSI andor BRI) and rank indication Different coding rates for the control information
are achieved by allocating different number of coded symbols for its transmission When the UE transmits rank indicator or beam-related information it shall determine the number of coded symbols Q for the
above information bits as
min
xPUSCH xPUSCH xPUSCH
sc symb offset xPUSCH xPUSCH
symb sc
CQI MIN
O M NQ N M
O
where O is the number of rank indicator bits or beam-related information bits as defined in section
5226 CQI MINO is the number of CQI bits including CRC bits assuming rank equals to 1 xPUSCH
scM is the
scheduled bandwidth for xPUSCH transmission in the current subframe expressed as a number of
subcarriers in [2] where a number of subcarriers used for PCRS transmission are not counted and xPUSCH
symbN is the number of OFDM symbols in the current xPUSCH transmission subframe where symbol(s)
that DMRS is mapped on is not counted
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
44
For rank indication RI mQ Q Q and [xPUSCH RI CQI
offset offset offset ] where RI
offset shall be determined according
to [3]
For BSI information BSI mQ Q Q and [xPUSCH BSI CQI
offset offset offset ] where BSI
offset shall be determined according
to [3]
For BRI information BRI mQ Q Q and [xPUSCH BRI CQI
offset offset offset ] where BRI
offset shall be determined
according to [3]
For CQI andor PMI information xPUSCH xPUSCH
CQI symb sc m ACK RI BSI BRIQ N M Q Q Q Q Q
The channel coding and rate matching of the control data is performed according to section 5226 The
coded output sequence for channel quality information is denoted by 0 1 2 3 1
CQIQq q q q q and coded
vector sequence output for rank indication is denoted by 0 1 2 1
RI
RI RI RI RI
Qq q q q
5242 Control information mapping
The input are the coded bits of the channel quality information denoted by 0 1 2 3 1 CQIQq q q q q The
output is denoted by 0 1 2 3 1
Hg g g g g
where
CQIH Q and mH H Q and wherei
g 0 1i H
are column vectors of length mQ H is the total number of coded bits allocated for CQIPMIBSIBRI
information
The control information shall be mapped as follows
Set j k to 0
while CQIj Q
TQjjk m
qqg ] [ 1
mQjj
1 kk
end while
5243 Channel interleaver
The vector sequences 0 1 2 1
Hg g g g
and
0 1 2 1
RI
RI RI RI RI
Qq q q q
are channel interleaved according
section 5228 The bits after channel interleaving are denoted by 0 1 2 1 RIH Qh h h h
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
45
53 Downlink transport channels and control information
531 Broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block every transmission time interval (TTI) of 40ms The
following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
5311 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of
the transport block and set to 16 bits and L is the number of parity bits The lowest order information bit a0
is mapped to the most significant bit of the transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits After the attachment the CRC bits are scrambled according to the 5GNB transmit antenna
configuration with the sequence 1510 antantant xxx as indicated in Table 5311-1 to form the sequence
of bits 13210 Kccccc where
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
46
kk ac for k = 0 1 2 hellip A-1
2mod AkantAkk xpc for k = A A+1 A+2 A+15
Table 5311-1 CRC mask for xPBCH
Number of transmit antenna ports for BRS xPBCH CRC mask
1510 antantant xxx
1 lt0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0gt
2 lt1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1gt
4 lt0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1gt
8 lt1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0gt
5312 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
5313 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
531A Extended broadcast channel
Figure 531-1 shows the processing structure for the xBCH transport channel Data arrives to the coding
unit in the form of a maximum of one transport block The following coding steps can be identified
Add CRC to the transport block
Channel coding
Rate matching
The coding steps for xBCH transport channel are shown in the figure below
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
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50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
47
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
110 Eeee
)(1
)(1
)(0
iD
iiddd
Figure 531-1 Transport channel processing for xBCH
531A1 Transport block CRC attachment
Error detection is provided on xBCH transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block
delivered to layer 1 by 13210 Aaaaaa and the parity bits by 13210 Lppppp A is the size of the
transport block and set to 248 bits [Editorrsquos Note May be revisited pending final xSIB content] and L is the
number of parity bits The lowest order information bit a0 is mapped to the most significant bit of the
transport block as defined in [4]
The parity bits are computed and attached to the xBCH transport block according to section 511 setting
L to 16 bits
531A2 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc ( kk ac )
where K is the number of bits and they are tail biting convolutionally encoded according to section
5131
After encoding the bits are denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
531A3 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by)(1
)(3
)(2
)(1
)(0
iD
iiiiddddd with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
48
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched bits
as defined in section 661 of [2]
532 Downlink shared channel
Figure 532-1 shows the processing structure for each transport block for the xDL-SCH transport
channel Data arrives to the coding unit in the form of a maximum of two transport blocks every
transmission time interval (TTI) per DL cell The following coding steps can be identified for each transport
block of a DL cell
Add CRC to the transport block
Code block segmentation (and code block CRC attachment only for turbo input bit sequence)
Channel coding
Rate matching
Code block concatenation
The coding steps for one transport block of xDL-SCH are shown in the figure below The same
processing applies for each transport block on each DL cell
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
49
Channel coding
Rate matching
Code block
concatenation
110 Aaaa
110 Bbbb
110 rKrrr ccc
110 rDrrr ddd
110 rErrr eee
110 Gfff
Transport block
CRC attachment
Code block segmentation
(code block CRC attachment)
Figure 532-1 Transport block processing for xDL-SCH
5321 Transport block CRC attachment
Error detection is provided on transport blocks through a Cyclic Redundancy Check (CRC)
The entire transport block is used to calculate the CRC parity bits Denote the bits in a transport block delivered to layer 1 by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the size of the
transport block and L is the number of parity bits The lowest order information bit a0 is mapped to the
most significant bit of the transport block as defined in section 611 of [4]
The parity bits are computed and attached to the transport block according to section 511 setting L to 24
bits and using the generator polynomial gCRC24A(D)
5322 Code block segmentation
The bits input to the code block segmentation are denoted by 13210 Bbbbbb where B is the number
of bits in the transport block (including CRC)
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50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
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51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
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52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
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53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
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54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
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55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
50
The bits after code block segmentation are denoted by 13210 rKrrrrr ccccc where r is the code
block number and Kr is the number of bits for code block number r
5323 Channel coding
Code blocks are delivered to the channel coding block They are denoted by 13210 rKrrrrr ccccc
where r is the code block number and Kr is the number of bits in code block number r The total number
of code blocks is denoted by C and each code block is individually LDPC or turbo encoded according to
section 5132
After LDPC encoding the bits are denoted by dr0 dr1 dr2 hellip dr(Dr-1) with Dr = Nldpc is the number of bits on
the i-th coded stream for code block number r
After turbo encoding (optional) the bits are denoted by )(
1
)(3
)(2
)(1
)(0
i
Dr
ir
ir
ir
ir r
ddddd
with 2 and 10i and
where rD is the number of bits on the i-th coded stream for code block number r ie 4 rr KD
5324 Rate matching
LDPC or Turbo coded blocks are delivered to the rate matching block They are denoted by dr0 dr1 dr2
hellip dr(Dr-1) where r is the code block number i is the coded stream index and Dr = Nldpc is the number of
bits in each coded stream of code block number r The total number of code blocks is denoted by C and
each coded block is individually rate matched according to section 5141
After rate matching the bits are denoted by 13210 rErrrrr eeeee where r is the coded block number
and where rE is the number of rate matched bits for code block number r
5325 Code block concatenation
The bits input to the code block concatenation block are denoted by 13210 rErrrrr eeeee for
10 Cr and where rE is the number of rate matched bits for the r-th code block
Code block concatenation is performed according to section 515
The bits after code block concatenation are denoted by13210 Gfffff where G is the total number of
coded bits for transmission This sequence of coded bits corresponding to one transport block after code
block concatenation is referred to as one codeword in section 631 of [2] In case of multiple transport
blocks per TTI the transport block to codeword mapping is specified according to section 53315
53315A or 53315B depending on the DCI Format
533 Downlink control information
Figure 533-1 shows the processing structure for one DCI The following coding steps can be identified
Information element multiplexing
CRC attachment
Channel coding
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
51
Rate matching
The coding steps for DCI are shown in the figure below
CRC attachment
Channel coding
Rate matching
110 Aaaa
110 Kccc
)(1
)(1
)(0
iD
iiddd
110 Eeee
Figure 533-1 Processing for one DCI
5331 DCI formats
The fields defined in the DCI formats below are mapped to the information bits a0 to aA-1 as follows
Each field is mapped in the order in which it appears in the description including the zero-padding bit(s)
if any with the first field mapped to the lowest order information bit a0 and each successive field mapped
to higher order information bits The most significant bit of each field is mapped to the lowest order
information bit for that field eg the most significant bit of the first field is mapped to a0
Note All DCI formats shall have the same payload size of 60 bits
53311 Format A1
DCI format A1 is used for the scheduling of xPUSCH
The following information is transmitted by means of the DCI format A1 in subframe n
- DCI format discriminator ndash 2 bits where 00 indicates format A1
- xPUSCH range ndash 2bits as defined in section 92 of [3]
- Transmission timing of xPUSCH ndash 3 bits where this field indicates transmission time offset value
lisin0 1 hellip 7
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
52
If this DCI format assigns more than zero RB then the corresponding xPUSCH is scheduled in subframe n+4+l+m
Otherwise this field shall be set to all zeros
where the value of m is indicated by the ldquotransmission timing of CSI-RS BRRSrdquo field
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 92 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 3 bits which shall be set to all zeros
Otherwise - Reserved ndash 9 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
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53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
53
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Else if this DCI format triggers BSI request - Number of BSI reports ndash 2 bits
00 1 BSI report 01 2 BSI reports 10 4 BSI reports 11 Reserved
- UCI on xPUSCH wo xUL-SCH data indicator ndash 1 bit
If no UCI report is triggered then this field is invalid and shall be set to zero
Otherwise the indicated value of 0 allows multiplexing of xUL-SCH data and UCI and the indicated value of 1 allows only UCI transmission on xPUSCH
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
54
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n+4+l+ m+1
- Antenna port(s) and number of layers ndash 3 bits as specified in Table 53311-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- Precoding matrix indicator ndash 3 bits as specified in Table 533A2-1 of [2]
- TPC command for xPUSCH ndash 2 bits as defined in section 6111 of [3]
- UL dual PCRS ndash 1 bit
If single-layer transmission is triggered by this DCI format
If the indicated value is 0 then the scheduled xPUSCH uses a PCRS AP corresponding to a DM-RS AP
If the indicated value is 1 then the scheduled xPUSCH uses two PCRS AP(s) the first AP is corresponding to the allocated DM-RS AP and the second AP is one whose REs are co-located in the same subcarrier with the first PCRS AP
Otherwise this field is not valid and shall be set to zero
If the number of information bits in format A1 is less than 60 bits zeros shall be appended to format A1
until the payload size equals to 60 bits
Table 53311-1 Antenna port(s) and number of layers indication by UL DCI formats
Value Message
0 1 Layer port 40
1 1 Layer port 41
2 1 Layer port 42
3 1 Layer port 43
4 2 Layers ports 40 41
5 2 Layers ports 42 43
6 7 Reserved
53312 Format A2
DCI format A2 is used for the scheduling of xPUSCH
All of the information fields in the DCI format A1 are also used for DCI format A2 except the following field - DCI format discriminator ndash 2 bits where 01 indicates format A2
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
55
If the number of information bits in format A2 is less than 60 bits zeros shall be appended to format A2
until the payload size equals to 60 bits
53313 Format B1
DCI format B1 is used for the scheduling of xPDSCH
The following information is transmitted by means of the DCI format B1 in subframe n
- DCI format discriminator ndash 2 bits where 10 indicates format B1
- xPDSCH range ndash 2bits as defined in section 814 of [3]
- RB assignment ndash 9 bits
If the indicated value is smaller than or equal to 324 then this field assigns more than zero RB as described in section 814 of [3]
Else if the indicated value is equal to 325 then this format assigns zero RB
Else if the indicated value is equal to 326 then this format assigns zero RB and used for random access procedure initiated by a xPDCCH order
Otherwise then this format is assumed to be misconfigured and UE shall discard the corresponding xPDCCH
If this DCI format assigns more than zero RB - HARQ process number ndash 4 bits
- MCS ndash 4 bits
- NDI ndash 1 bit
- Redundancy version ndash 2 bits
- Bit-mapping index for HARQ-ACK multiplexing (BMI) ndash 3bits as described in section 84 of [3]
Else if this DCI format is used for random access procedure initiated by a xPDCCH order - Frequency band index nRACH in section 572 in [2] ndash 3 bits
- OCC indicator frsquo in section 572 in [2] ndash 1 bit where 0 indicates frsquo = 0 and 1 indicates for frsquo=1
- Cyclic shift indicator in section 572 in [2] ndash 2 bits
- Reserved ndash 8 bits which shall be set to all zeros
Otherwise - Reserved ndash 14 bits which shall be set to all zeros
- CSI BSI BRI request ndash 3 bits
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56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
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58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
56
If the indicated value is 000 then none of CSIBSIBRI is requested
Else if the indicated value is 001 then this DCI format triggers BSI reporting
Else if the indicated value is 010 then this DCI format allocates BRRS and also triggers corresponding BRI reporting
Else if the indicated value is 011 then this DCI format allocates BRRS but does not trigger BRI reporting
Else if the indicated value is 100 then this DCI format allocates CSI-RS and also triggers corresponding CSI reporting
The values 101 110 and 111 are reserved
- Transmission timing of CSI-RS BRRS ndash 2 bits where this field indicates transmission time
offset value misin0 1 2 3
If this DCI format allocates either of CSI-RS or BRRS then the corresponding transmission is allocated in subframe n + m
Otherwise it shall be set to all zeros
- Indication of OFDM symbol index for CSI-RS BRRS allocations ndash 2 bits
If this DCI format allocates CSI-RS then this field indicates OFDM symbols used for CSI-RS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 1 or 2 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 13th 01 14th 10 13amp14th 11 Reserved
Else if this DCI format allocates BRRS and higher-layer gives either of 5 or 10 symbol BRRS configuration then this field indicates OFDM symbols used for BRRS transmission
00 5 symbols in slot 0 01 5 symbols in slot 1 10 10 symbols 11 Reserved
Otherwise it shall be set to all zeros
If this DCI format allocates either of CSI-RS or BRRS transmission - Process indicator ndash 2 bits
00 Process 0 01 Process 1 10 Process 2 11 Process 3
Otherwise - Reserved ndash 2 bits which shall be set to all zeros
If this DCI format triggers any UCI report - Transmission timing of xPUCCH for UCI report ndash 3 bits where this field indicates
transmission time offset value kisin0 1 hellip 7
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57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
57
xPUCCH transmission is allocated in subframe n + 4 + k + m
- Frequency resource index of xPUCCH for UCI report ndash 4 bits
Otherwise - Reserved ndash 7 bits which shall be set to all zeros
- Beam switch indication ndash 1 bit as described in section 834 and in section 844 of [3]
- SRS request ndash 3 bits
MSB 2 bits are used for the indication of SRS configurations
00 No SRS request 01 Config 0 10 Config 1 11 Config 2
LSB 1 bit
If SRS is not requested this field is invalid and shall be set to zero
If SRS is requested 0 indicates SRS transmission on the 13th OFDM symbol and 1
indicates SRS transmission on the 14th OFDM symbol in subframe n +4 +m+k+1
- Antenna port(s) and number of layers indicationndash4 bits as specified in Table 53313-1
- SCID ndash 1bit where this field indicates which nSCID is applied for both DMRS in subframe n and CSI-RS in subframe n+m
If the indicated value is 0 then nSCID =0 is applied
If the indicated value is 1 then nSCID =1 is applied
- TPC command for xPUCCH ndash 2 bits as defined in section 612 of [3]
- DL PCRS ndash 2 bits
00 No PCRS 01 PCRS on AP 60 10 PCRS on AP 61 11 PCRS on AP 60 and 61
If the number of information bits in format B1 is less than 60 bits zeros shall be appended to format B1
until the payload size equals to 60 bits
Table 53313-1 Antenna port(s) and number of layers indication by DL DCI formats
Value Message
0 1 Layer port 8 (Ch estimation wo OCC)
1 1 Layer port 9 (Ch estimation wo OCC)
2 1 Layer port 10 (Ch estimation wo OCC)
3 1 Layer port 11 (Ch estimation wo OCC)
4 2 Layers ports 8 9 (Ch estimation wo OCC)
5 2 Layers ports 10 11 (Ch estimation wo OCC)
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
58
6 2 Layers ports 8 12 (OCC = 2)
7 2 Layers ports 9 13 (OCC = 2)
8 2 Layers ports 10 14 (OCC = 2)
9 2 Layers ports 11 15 (OCC = 2)
10-15 Reserved
53314 Format B2
DCI format B2 is used for the scheduling of xPDSCH
All of the information fields in the DCI format B1 are also used for DCI format B2 except the following field
DCI format discriminator ndash 2 bits where 11 indicates format B2
If the number of information bits in format B2 is less than 60 bits zeros shall be appended to format B2
until the payload size equals to 60 bits
5332 CRC attachment
Error detection is provided on DCI transmissions through a Cyclic Redundancy Check (CRC)
The entire payload is used to calculate the CRC parity bits Denote the bits of the payload by
13210 Aaaaaa and the parity bits by13210 Lppppp A is the payload size and L is the number
of parity bits
The parity bits are computed and attached according to section 511 setting L to 16 bits resulting in
13210 Bbbbbb where B = A+ L
After attachment the CRC parity bits are scrambled with the corresponding RNTI 1510 rntirntirnti xxx
where 0rntix corresponds to the MSB of the RNTI to form the sequence of bits 13210 Bccccc The
relation between ck and bk is
kk bc for k = 0 1 2 hellip A-1
2mod Akrntikk xbc for k = A A+1 A+2 A+15
5333 Channel coding
Information bits are delivered to the channel coding block They are denoted by 13210 Kccccc where
K is the number of bits and they are tail biting convolutionally encoded according to section 5131
After encoding the bits are denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where D is the
number of bits on the i-th coded stream ie KD
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits
TS V5G212 V12 (2016-06)
59
5334 Rate matching
A tail biting convolutionally coded block is delivered to the rate matching block This block of coded bits is
denoted by )(1
)(3
)(2
)(1
)(0
iD
iiiiddddd
with 2 and 10i and where i is the coded stream index and D is the
number of bits in each coded stream This coded block is rate matched according to section 5142
After rate matching the bits are denoted by 13210 Eeeeee where E is the number of rate matched
bits