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Chapter9
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MOBILITY
DATARATE
UMTS
2.
GENER.
GSM,
IS-54
ISDN
MBS
CORDLESS
FIXED
PORTABLE
MOBILE
WLAN
B-ISDN
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Search Area
n-1 fnf
b x b
p x qMCER
Position of the best match
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pensation
Multi-Class
DCT
Local Recon-
struction
compression
Table-
Table-
compression
Motion Com-
Modem
Camera
IntraCodec
Inter Codec
Modem
Cost / Gain Estimationand Bitrate Control
QuantiserBlock
Averaging
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10 20 30 40 50 60 70 80 90 100
Frame Index
26
28
30
32
34
36
PSNR(dB)
-
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DCT-1
Quant-1
LoopFilter
MotionEstimation
Quant
VideoMultiplex
Coder
CodingControl
CurrentFrame
0
1
0
1
DCTQuantised Coefficients
M
otionVector
FrameMemory
MotionCompensation
Quantiser Index
0
INTRA/INTER mode
Multiplexer
Multiplexer
Prediction Error
-
-
-
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b = 2 (00)
b = 2 (01)
b = 2 (10)
b = 2 (11)
b = 1 ( 0 )
b = 1 ( 1 )
0
-1
-2-3
+4
+3
+2+1
-
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Differential vector
Relativefrequency
0
0.1
0.2
0.3
0.4
0.5
0.6
-3 -2 -1 0 1 2 3 4
English
Chinese
Map
Drawing
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X Y SV FV FV FVFVo o
VC
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Q
I
d
d2
1
1 2A A
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$RCSfile: q1a.gle,v $
P(y/x1) P(y/x2)
T0X1 X2y0 y1
P(y0/X1)
P(y0/X2)
P(y1/X2)
P(y1/X1)
$RCSfile: q1b.gle,v $
-3 -2 -1 0 1 2 3y
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Q(
y)
Q-Function
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0 5 10 15 20 25 30Channel SNR (dB)
10-6
10-5
10-4
10-3
10-2
10-1
100
BER
0 5 10 15 20 25 30
64 point QAM C3 simulation
64 point QAM C2 simulation
64 point QAM C1 simulation
16 point QAM C2 simulation
16 point QAM C1 simulation
QPSK simulation
BPSK simulation64 point QAM C3 theory
64 point QAM C2 theory
64 point QAM C1 theory
16 point QAM C2theory
16 point QAM C1theory
QPSK theory
BPSK theory
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LowPassInterpolationat20dBEb
/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
PolynomialInterpolationat20dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
OptimumInterpolationat20dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
1001
20
Gap
0.0
10.111
0BER(%)
LowPassInterpolationat30dBEb
/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
PolynomialInterpolationat30dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
OptimumInterpolationat30dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
1001
20
Gap
0.0
10.111
0BER(%)
LowPassInterpolationat40dBEb
/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
PolynomialInterpolationat40dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
OptimumInterpolationat40dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
1001
20
Gap
0.0
10.111
0BER(%)
16SquareQAM
LinearInterpolationat20dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
16SquareQAM
LinearInterpolationat30dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
16SquareQAM
LinearInterpolationat40dBEb/N0
3
4
5
6
7
8
91
011
Buff
er
20
40
60
80
100
120
Gap
0.0
10.111
0BER(%)
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1.0 2.0 3.0 4.0
Bits Per Symbol
10-4
2
5
10-3
2
5
10 -2
2
5
10-1
2
5
10 0
2
BER(%)
Comparison of Coherent and non Coherent Detection
40dB
30dB
20dB
40dB dif
30dB dif
20dB dif
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0 5 10 15 20 25 30 35 40 45 50
Average Channel SNR
10-5
2
5
10-4
2
510
-3
2
5
10-2
2
5
10-1
BitErrorRate
0 5 10 15 20 25 30 35 40 45 500
1
2
3
4
5
6
B
PS
Data
Speech
BPS
BER
-
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0 5 10 15 20 25 30 35 40 45
Average channel SNR (dB)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Probability QAM 64
QAM 16
QPSK
BPSK
NoTx
-
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-
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bit range
percentage
oftraces
0
0.05
0.1
0.15
0.2
0.25
20 30 40 50 60 70 80 90 100 1 10 120 1 30 1 40 1 50 1 60 1 70 1 80 1 90 2 00
FL-DCC(b=1)
FL-DCC(b=2)
DCC(M=8)
-
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packet length
percentage
ofincrease
0
20
40
60
80
100
120
50 70 90 110 130 150 170 190 210 230 250
English
Chinese
Map
Drawing
-
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h261-h263-compare-gaussian.gle
0 5 10 15 20 25 30
Channel SNR (dB)
30
32
34
36
38
40
42
Aver
agePSNR(dB)
H.261
H.263 64 QAM(AWGN)
16 QAM(AWGN)
4 QAM(AWGN)64 QAM(AWGN)
16 QAM(AWGN)
4 QAM(AWGN)
-
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h261-h263-compare-rayleigh.gle
5 10 15 20 25 30
Channel SNR (dB)
30
32
34
36
38
40
42
Aver
agePSNR(dB)
H.261
H.263 64 QAM(Rayleigh)
16 QAM(Rayleigh)
4 QAM(Rayleigh)
64 QAM(Rayleigh)
16 QAM(Rayleigh)
4 QAM(Rayleigh)
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Chapter10
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1980
MS
2010
W-CDMA
(TDD)
W-CDMA
Uplink
(FDD)
1900 1920
W-CDMA
(TDD)
2170
W-CDMA
Downlink
(FDD)
21102025
Frequency (MHz)
MS : Mobile satellite application
MS
2200
1980
MS
2010
W-CDMA
Uplink
(FDD)
1920
W-CDMA
(TDD)
2170
W-CDMA
Downlink
(FDD)
21102025
MS
2200
MS : Mobile satellite application
Frequency (MHz)
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Base
Station (BS)
Mobile
Station (MS)
Uplink (UL)
Downlink (DL)
BS
DL UL DL DLUL UL
TDD Operation
FDD Operation
time
MS
frequency
frequency
time
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Dedicated Physical Channels
Dedicated Physical Data Channel (DPDCH) (UL/DL)
Dedicated Physical Control Channel (DPCCH) (UL/DL)
Common Physical Channels
Physical Random Access Channel (PRACH) (UL)
Primary Common Control Physical Channel (PCCPCH) (DL)
Secondary Common Control Physical Channel (SCCPCH) (DL)
Synchronization Channel (SCH) (DL)
DCH
RACH
FACH
PCH
BCCH
Transport Channels
Transport Channels
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Radio frame (10 ms)
Timeslot (0.625 ms)
Radio frame #1 Radio frame #2 Radio frame #72
Timeslot #1 Timeslot #2 Timeslot #3 Timeslot #16
Superframe (720 ms)
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DPCCH : Dedicated Physical Control Channel
DPDCH : Dedicated Physical Data Channel
PCCPCH : Primary Common Control Physical Channel
SCCPCH : Secondary Common Control Physical Channel
TPC : Transmit Power Control
TFI : Transport Format Indicator
Data
DPCCH DPDCH
0.625 ms, 20 * 2k bits (k=0..6)
Pilot
SymbolsData
0.625 ms, 20 bits
Pilot
SymbolsData
0.625 ms, 20 * 2k bits (k=0..6)
TFITPCPilot
SymbolsDPCCH
DPDCH/
Downlink
PCCPCH
SCCPCH
Downlink
Downlink
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DPDCH : Dedicated Physical Data Channel
DPCCH : Dedicated Physical Control Channel
TPC : Transmit Power ControlTFI : Transport Format Indicator
0.625 ms, 10 * 2k bits (k=0..6)
Data
0.625 ms, 10 * 2k bits (k=0..6)
Pilot
SymbolsTPC TFI
DPDCH
DPCCH
Uplink
Uplink
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Dedicated Physical Channels
Dedicated Physical Data Channel (DPDCH) (UL/DL)
Dedicated Physical Control Channel (DPCCH) (UL/DL)
DCH
Common Physical Channels
Physical Random Access Channel (PRACH) (UL) RACH
Perch Channel (DL)
Common Physical Channel (CPCH) (DL)
PCH
FACH
BCH*
* BCH in IMT-2000 corresponds to BCCH in UTRA
Transport Channels
Transport Channels
RI Data TPC Data
DPCCH DPDCH DPCCH DPDCH DPCCH
0.625 ms, 20 * 2k bits (k=0..6)
DataPilot
Symbols
0.625 ms, 20 bits
Pilot
SymbolsDPCCH
DPDCH/
Downlink
CPCH
Downlink
DPDCH : Dedicated Physical Data Channel
DPCCH : Dedicated Physical Control Channel
CPCH : Common Control Channel
TPC : Transmit Power Control
RI : Rate Information
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0.625 ms, 10 * 2k bits (k=0..6)
Data
0.625 ms, 10 * 2k bits (k=0..6)
Pilot
SymbolsTPC
DPDCH
DPCCH
Uplink
Uplink
DPDCH : Dedicated Physical Data Channel
DPCCH : Dedicated Physical Control Channel
TPC : Transmit Power Control
RI
RI : Rate Information
Data1Pilot
SymbolsTPC RI Data2 GuardDedicated physical channel Data1
Data1 Data2Pilot
SymbolsCommon physical channel
0.625 ms
Guard
(Burst 1 and Burst 2)
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: Downlink : Uplink
a) Symmmetric UL/DL allocation with multiple switching points
c) Asymmetric UL/DL allocation with a single switching point
b) Asymmetric UL/DL allocation with multiple switching points
10 ms
0.625 ms
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Midamble
96 chips
GP
976 chips 512 chips 976 chips
Midamble
96 chips
GP
256 chips1104 chips 1104 chips
Burst 1
Burst 2
0.625 ms
GP : Guard Period
data symbols data symbols
data symbols data symbols
k = 0,1,2,3
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Rate
Matching
Static
Rate
Matching
Static
Interleaver
Interleaving
coding/
Channel
Interleaving
coding/
Channel
Time
Mux
Dynamic
Rate
Matching
Service #1
Service #L
DPDCH
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CRC CRC
speech bit stream
Compressed
16 bit 80 bit
CRC checksum
attachment
96 bits
Tail
8 bit
Tail
Attachment
(96 + 8) x 3 = 312 bits
Dedicated
Channel (DCH)
radio unit 312 bits
312 bits
Convolutionalencoding
R = 1/3, K = 9
Interleaving
(Optional)
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Q x DCH
Time-multiplex DCHDCH DCH
DCH DCH DCH2 Q1
1 2 Q
bitsL x
L x 10 ms
Rate matching
L segmentation
1 2 L
Frame
Interleaving
1 2 L
DPDCH#1 DPDCH#2 DPDCH#L
Mapping
to
Physical
Channels
10 ms 10 ms 10 ms
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information
User
20480 bits
Segmentation
Reed-Solomonencoding +Interleaving
X Tail
20480 x 210/200 = 21504 bits 16 x 8 = 128 bits
R = 200/210
Convolutional
coding
R = 2/3
(21504 + X + 128) x 3/2 = 32256 + 3X/2 + 192 bits
244 bits 117 blocks 276 bits 104 blocks
Puncturing removes 3900 + 3X/2 bits, removes 3744 + 3X/2 bits,
QPSK
modulation
117 blocks 104 blocks122 symbols 138 symbols
10 ms
Burst 2Burst 1
yielding 28548 bits yielding 28704 bits
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DPCCH DPDCH
DPDCH
DPDCH
Physical Channel 1
Physical Channel 2
Physical Channel L
0.625 ms
-
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k = 0k = 1k = 2k = 3k = 4k = 5k = 6
lowest bit ratehighest bit rate
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-
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Complex
Multiply
I
QDPCCH
DPDCH
I+jQ
Real
Imag
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S PDPDCH/DPCCH
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Preamble
Idleperiod
1 ms
0.25 ms
Message
10ms
MS ID
Required
Service Optional user packet CRCData part
P RI P RIControl part
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1.25 ms
Access slot #1
Access slot #2
Access slot #8
1.25 ms
Random access burst
Random access burst
Random access burst8.75 ms
11.25 ms
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Signature Signature Signature
Data
Q
I
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-
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Data
Data
10 ms
periodIdle
Power
Time
Power
Time
Normal frame
Compressed frame
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GPS
sub area
coverage areamain area
: base stations
: sub-area beacon base station
: main-area beacon base station
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1.25 MHz
Multi-carrier modulation (N = 3) Direct spread modulation (N = 3)
Single carrier modulation
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PilotPower Control
Bit
1.25 ms Power Control Group (PCG)
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0 00 00 00 00 01 11 11 11 11 1 0000011111 0000011111 0 00 00 00 00 01 11 11 11 11 1000001111100000111110 00 00 00 00 01 11 11 11 11 1
0 0 00 0 00 0 00 0 00 0 01 1 11 1 11 1 11 1 11 1 11.25 ms
20 ms
#1 #2 #16
1.25 ms
5 ms
#1 #2 #4
Guard time
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rateData
Physical
channel
Conv/Turbo
Encoder
Code rate
Repetition Puncturing
Channelrate
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Conv/Turbo
Encoder
Code rate
Datarate
Repetition 1 Puncturing Interleaver Repetition 2
Channelrate
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scrambling code
Data S P
Power Control
Symbol
Power Control
Symbol
Complex
Multiply
Complex
Insertion
Insertion
ChannelisationWalsh code
cell-specificscrambling code
Long
I
Q
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Channel
Walsh Code
Walsh Code
Fundamental
Supplemental
Channel
Channel
Pilot
Walsh Code
Control
Channel
Dedicated
Walsh Code
Complex
Multiply
scrambling code
User-specific
I
Q
scrambling codeComplex
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Sub Attempt
(BS1)
Sub Attempt Sub Attempt
(BS2) (BSn)
Access Attempt
Access Probe
Time
Power
Access
Preamble
Access Channel
Message Capsule
Pilot Channel (PICH)
Access Channel (ACH)
Power
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Complex
Multiply
Channel
Pilot
(PICH)
Channel
Access
(ACH)
Walsh code
Walsh code
Baseband
Baseband
scrambling code
User-specific
scrambling code
Filter
Filter
Complex
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PI
IP
PI
time
IP : Initial Power
PI : Power Increment
Access probes
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