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HUAWEI TECHNOLOGIES CO., LTD.
www.huawei.com
HUAWEI Confidential
Internal
HSUPA Principles
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Contents
Chapter-1 Introduction
Chapter-2 HSUPA Physical Layer
Chapter-3 Scheduling Principles
Chapter-4 Power Control and Mobility
Chapter-5 HSUPA MAC Layer
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HSUPA vs. GPRS/EGPRS
Multiple accesstechnology:
TDMA+CDMA
Multiple access
technology:
FDMA+TDMA
Single modulated MCS1 to MCS9,CS1 to CS4
Modulation mode:
BPSK
Modulation mode:
GMSK, 8PSK
Physical channel:
E-DCH
Physical channel:
PDTCH
Scheduling: channel
circumstance, data volume
to be transmitted in the
buffer of the UE, and
available power
Scheduling:
user priority
HSUPA GPRS/EGPRS
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Features of
HSUPA
uplink
Limitations of R99 Uplink and Features of HSUPA
Long delay
Low uplink data rate
Small uplink capacity
Peak rate: 5.76 Mbit/s (RAN 10)
Improvement on uplink coverage at high daterate: 20 % to 50 %
Improvement on uplink capacity: 30 % to 100%
Reduced delay
Fast resource scheduling and control
Improved QoS
Features
of R99
uplink
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Comparison Between R99 and HSUPA
Min.10 ms TTIMin. 2 ms (initial
10 ms) TTI
Slow resource
request and
allocation
mechanism (at RNC)
Fast resource request
and allocation
mechanism (at NodeB)
Dedicated resources
allocation of low
efficiency
Dedicated resources
allocation for delay-
sensitive services
Traditional ARQ to
perform high-layer
retransmission
HARQ to perform
fast retransmission
at the physical layer
Multiplexing of
transport channels to
physical channels
Multiplexing of
logical channels to
MAC layer
Release 99 HSUPA
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Comparison Between HSUPA and HSDPA
New high-speed
downlink shared
channels
Dedicated uplinkchannels with
enhanced capability
Single serving cell
(the traffic channel
does not support soft
handover)
Soft handover is
supported
Adaptive
modulation/coding
Fast power control
Multiple users share
the power and code
resources of theNodeB.
Multiple users cause the RoT
to rise, and the NodeB
allocates resources among
different users.
HSDPA HSUPA
HARQ with fast retransmission at the physical layer
Min.10 ms TTI
Slow resource
request and
allocation
mechanism (at RNC)
Dedicated resources
allocation of low
efficiency
Traditional ARQ to
perform high-layer
retransmission
Multiplexing of
transport channels to
physical channels
Release 99
Multiple access
technology:
FDMA+TDMA
MCS1 to MCS9,
CS1 to CS4
Modulation mode:
GMSK, 8PSK
Physical channel:
PDTCH
Scheduling:
user priority
GPRS/EGPRS
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Features of HSUPA
Important features of Release 6
The NodeB receives multiple high-speed channels.
The signals may come from different UEs or the same UE.
Multiple users share the interference.
Multiple users transmit signals at the specified rate and power based on quick
scheduling.
E-DPDCH
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HUSPA UE Capabilities
* Maximum Peak data rate for 10 ms E-DCH TTI operation is 2 Mbps in all configurations
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Contents
Chapter-1 Introduction
Chapter-2 HSUPA Physical Layer
Chapter-3 Scheduling Principles
Chapter-4 Power Control and Mobility
Chapter-5 HSUPA MAC Layer
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Channel Mapping
In RAN 10, the mapping from DCCH to HS-DSCH/E-DCH is implemented.
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New Channels in HSUPA
Uplink transport channel
E-DCH: Bears high-speed uplink data.
Uplink physical channel
E-DPDCH: carries E-DCH PDUs.
E-DPCCH: carries the control information of the E-DPDCH.
Downlink physical channel
E-HICH: carries the HARQ ACK/NACK indication message of the E-DCH.
E-AGCH: carries the absolute grant (AG) information determined by the scheduler.
E-RGCH: carries the relative grant (RG) information determined by the scheduler.
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Physical Layer Information Exchange Process of HSUPA
The UE sends an SI request carrying buffer state,
UPH, and other relevant information through the
E-DPDCH.
The NodeB allocates resources through the E-
AGCH to the UE (AG procedure) or indicates
power adjustment through the E-RGCH (RG
procedure).
The UE sends MAC-e PDU (service or signaling
data) through the E-DPDCH, and sends the
control information (required for demodulating the
PDU) and happy bit (indicating whether the UE is
happy with the current scheduled rate) through
the E-DPCCH.
The NodeB tells the UE whether the PDU has
been successfully demodulated through the E-
HICH.
E-DPDCH E-DPCCH E-AGCH/RGCH E-HICH
Node B
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Structure of the E-DPDCH/E-DPCCH
Header MAC-e PDU (payload) SI
E-DPDCH sub-frame structure
RSN E-TFCI Happy bit
E-DPCCH sub-frame structure
2bit 7bit 1bit
Happy bit:
Indicates whether
the UE is happy
with the current
scheduled rate.
TTI
SF=256
Retransmission
Sequence
Number
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E-DPDCH / E-DPCCH Frame Format
The E-DPDCH and the E-DPCCH both keep frame alignment with the uplink
DPCCH.
Modulation: BPSK with I/Q branch
When the TTI of E-DCH is 10 ms, the contents of the E-DPCCH subframe is
repeatedly sent for five times.
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E-DPDCH / E-DPCCH Slot Format
c
Channel Bit Rate
(kbit/s) SF
Bits/
Frame
Bits/
Subframe
Bits/Slot
Ndata
0 15 256 150 30 10
1 30 128 300 60 20
2 60 64 600 120 40
3 120 32 1200 240 80
4 240 16 2400 480 160
5 480 8 4800 960 320
6 960 4 9600 1920 640
7 1920 2 19200 3840 1280
Slot Format #i Channel Bit Rate
(kbit/s)
SF Bits/
Frame
Bits/
Subframe
Bits/Slot
Ndata
0 15 256 150 30 10
E-DPDCH slot format
E-DPCCH slot format
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E-DPDCH I/Q Channel Mapping
Ced,k : Channelization code
ed,k : Gain factor for E-DPDCH
Iqed,k : Determines the I/Q branch mapping
Iqed,k = 1, maps to I branch
Iqed,k = j, maps to Q branch
Nmax-dpdch
HS-DSCH
configured E-DPDCHk iqed,k
0 No/Yes
E-DPDCH1 1
E-DPDCH2 j
E-DPDCH3 1
E-DPDCH4 j
1 No E-DPDCH1 jE-DPDCH2 1
1 YesE-DPDCH1 1
E-DPDCH2 j
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Code Resource Allocation
E-DPCCH uses the channel code: Cec = Cch,256,1
E-DPDCHk uses the channel code: Ced,k, which is determined by Nmax-dpdch
and the spreading factor. For the specific rules, see the following table.
Nmax-dpdch E-DPDCHk Channelization code Ced,k
0
E-DPDCH1 Cch,SF,SF/4 if SF 4Cch,2,1 if SF = 2
E-DPDCH2Cch,4,1 if SF = 4
Cch,2,1 if SF = 2
E-DPDCH3
E-DPDCH4Cch,4,1
1
E-DPDCH1 Cch,SF,SF/2
E-DPDCH2Cch,4,2 if SF = 4
Cch,2,1 if SF = 2
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Downlink Physical Channels
E-AGCH
Bears the maximum E-DPDCH/DPCCH
ratio.
Bears the HARQ control information.
E-RGCH
Bears a simple command to instruct the
UE to increase, decrease, or keep its
transmit power currently granted.
E-HICH
Informs the UE whether the
transmission of the previous data is
successful (Ack) or not (Nack).
Up / Hold / Down
T/P Grant HARQ Control
E-AGCH (sub) frame structure
E-HICH (sub) frame structure
TTI
Ack / Nack
E-RGCH (sub) frame structure
SF=256
SF=128
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Grant Mechanism
Absolute Grant (AG)
Carried by the E-AGCH of the E-DCH serving cell.
Grant mode: An index (totally 31 index values) is used to indicate the Traffic-to-
Pilot ratio (E-DPDCH/DPCCH).
Significance of the Grant value: Maximum power ratio (E-DPDCH/DPCCH)
available for the UE.
Relative Grant (RG)
RG carries a command instructing the UE to increase, keep, or decrease its
current transmit power.
The Serving RG is sent by all the cells in the E-DCH serving RLs.
The Non-serving RG is sent by the E-RGCH in the E-DCH non-serving RLs.
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E-AGCH Frame Format
The E-AGCH is a downlink common channel.
Fixed rate: 30 kbit/s
Modulation: QPSK
SF=256
The E-AGCH carries the E-DCH absolute Grant information of all the UEs in the cell.
The TTI may be 2 ms or 10 ms depending on the E-DCH. If the E-DCH TTI is 10 ms, then the E-
AGCH either sends the same content in five subframes, or sends the content in one of the five
subframes.
The UE only monitors the E-AGCH of the E-DCH serving cell.
Slot #1 Slot #14Slot #2 Slot #iSlot #0
Tslot = 2560 chips
1 subframe = 2 ms
1 radio frame, Tf = 10 ms
E-AGCH 20 bits
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Mapping of Absolute Grant (AG) Values
For the actual grant values (T/P), see the following table.
Absolute Grant
Value
Index Absolute Grant
Value
Index Absolute Grant
Value
Inde
x
(168/15)2x6 31 (119/15)2 20 (34/15)2 9
(150/15)2x6 30 (106/15)2 19 (30/15)2 8
(168/15)2x4 29 (95/15)2 18 (27/15)2 7
(150/15)2
x4 28 (84/15)2
17 (24/15)2
6(134/15)2x4 27 (75/15)2 16 (19/15)2 5
(119/15)2x4 26 (67/15)2 15 (15/15)2 4
(150/15)2x2 25 (60/15)2 14 (11/15)2 3
(95/15)2x4 24 (53/15)2 13 (7/15)2 2
(168/15)2 23 (47/15)2 12 ZERO_GRANT* 1
(150/15)2 22 (42/15)2 11 INACTIVE* 0
(134/15)2 21 (38/15)2 10
*: Refer to the 3GPP TS 25.321 protocol.
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E-AGCH Frame Timing
Two slots offset after the P-CCPCH
P-CCPCH
38400 chips
Subframe 0 Subframe 1 Subframe 2 Subframe 3E-AGCH Subframe 4
5120 chips
E-AGCH (10 ms)E-DCH TTI = 10 ms
E-DCH TTI = 2 ms
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E-RGCH Frame Format
Dedicated downlink physical channel for transmitting RG (+1, 0, -1 or 0, -1) to the UE
Adopt the same frame format and the same channelization code of the E-HICH
SF=128
Modulation: QPSK
All cells in the E-DCH active set send E-RGCH frames.
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Mapping of E-RGCH Relative Grant Values
CommandRG Value (E-DCH Serving
Radio Link Set)
RG Value (E-DCH Non-
Serving Radio Link Set)
UP +1 not allowed
HOLD 0 0
DOWN -1 -1
The primary serving cell sends +1, 0, and -1, and a non-primary
serving cell only sends 0 and -1.
SG bl
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SGcur is the scheduled power state of the previous frame.
SGreq is the power needed for the TTI requested rate.
When Sgreq - SGcur >AGThreshold, the E-AGCH is used to adjust the power.
Otherwise, the E-RGCH is used to adjust the power.
Index Scheduled Grant Index Scheduled Grant Index Scheduled Grant
37 (168/15)2*6 24 (95/15)2 11 (21/15)2
36 (150/15)2*6 23 (84/15)2 10 (19/15)2
35 (168/15)2
*4 22 (75/15)2
9 (17/15)2
34 (150/15)2*4 21 (67/15)2 8 (15/15)2
33 (134/15)2*4 20 (60/15)2 7 (13/15)2
32 (119/15)2*4 19 (53/15)2 6 (12/15)2
31 (150/15)2*2 18 (47/15)2 5 (11/15)2
30 (95/15)2*4 17 (42/15)2 4 (9/15)2
29 (168/15)2 16 (38/15)2 3 (8/15)2
28 (150/15)2 15 (34/15)2 2 (7/15)2
27 (134/15)2 14 (30/15)2 1 (6/15)2
26 (119/15)2 13 (27/15)2 0 (5/15) 2
25 (106/15)2 12 (24/15)2
SG Table
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Typical Interaction Between the UE and the NodeB
The UE sends theSI request (indicating the UE
buffer state and the available
power)
and the happy bit.
The NodeB
gets the
requested rate
from SI.
The NodeB findsthe SGreq
according to the
requested rate
and compares it
with the SGcur.
Greater thanAGThreshold
Less than or equal toAGThreshold
Use AG to grant Use RG to grant
Adjust the power according to AGor RG, and indicates whether the
UE is happy with the current
scheduled rate.
NodeB
UU
UE
Ti i R l ti A th E RGCH P CCPCH d DPCH
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Timing Relations Among the E-RGCH, P-CCPCH, and DPCH
Each slot carries an RG command.
If the cell does not belong to the E-DCH serving RLs:
The RG information is sent in 15 consecutive slots (10 ms).
If the cell belongs to the E-DCH serving RLs:
10 ms TTI: The RG information is sent in 12 consecutive slots (8 ms).
2 ms TTI: The RG information is sent in 3 consecutive slots (2 ms).
P-CCPCH
tE-RGCH,n
38400 chips
E-DCH TTI = 10 ms (cell in serving RLS) E-RGCH (8 ms)
Subframe 0 Subframe 1 Subframe 2 Subframe 3E-RGCH
Subframe 4E-DCH TTI = 2 ms (cell in serving RLS)
5120 chips
E-RGCH (10 ms)Cell in non serving RLS
E RGCH Ti i R l ti
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E-RGCH Timing Relations
When the cell sending the E-RGCH belongs to the E-DCH serving RLs, the E-
RGCH frame offset confirms to the following conditions:
1. If the E-DCH TTI is 10 ms, the E-RGCH frame offset to the P-CCPCH
satisfies the following formula:
2. If the E-DCH TTI is 2 ms, the E-RGCH frame offset to the P-CCPCH
satisfies the following formula:
When the cell sending the E-RGCH does not belong to the E-DCH serving RLs:
The E-RGCH frame offset to the P-CCPCH is 5120 chips.
30
7025676805120
,
,
nDPCHnRGCHE
tt
30
5025676805120
,
,
nDPCHnRGCHE
tt
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E-HICH Frame Format
Dedicated downlink physical channel for transmitting the HARQ Ack/Nack to the UE.
Adopt the same frame format and the same channelization code of the E-RGCH
SF=128
Modulation: QPSK
All cells in the E-DCH active set send E-HICH frames.
Ack/Nack indication
Ack => +1
Nack from the serving RLs => -1
Nack from non-serving RLs => 0
The UE can receive the E-HICH from a maximum of four cells.
E HICH Ti i R l i
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E-HICH Timing Relations
When the E-DCH TTI is 10 ms, the E-HICH frame offset to P-CCPCH is: (chips)
When the E-DCH TTI is 2 ms, the E-HICH frame offset to P-CCPCH is: (chips)
nHICHE ,t
nHICHE ,t
307025676805120 ,,
nDPCHnHICHE tt
30
5025676805120
,
,
nDPCHnHICHE
tt
P-CCPCH
tE-HICH,n
38400 chips
E-DCH TTI = 10 ms E-HICH (8 ms)
Subframe 0 Subframe 1 Subframe 2 Subframe 3E-HICH
Subframe 4E-DCH TTI = 2 ms
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How to Reach the Peak Rate (5.76 Mbit/s)
Preconditions:
No retransmission.
Uplink resources are available.
Coding efficiency =1
Multi-code transmission: 2 x SF4 + 2 x SF2
2 ms TTI
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E-DPDCH Frame (SF=4)
When SF=4, TTI=2 ms, and coding rate=1, the maximum payload of each
subframe is 1920 bits, that is 960 kbit/s.
1920 bits payload
1920 bits parity 1920 bits parity1920 bits system
1920 bits symbols
1920 bits symbols
7680 chips
1/3 coding
Puncture
BPSK modulation
Spreading (SF=4)
2 ms
7680 chips/2 ms=3.84 Mcps
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E-DPDCH Frame (SF=2)
When SF=2, TTI=2 ms, and coding rate=1, the maximum payload of each
subframe is 3840 bits, that is 1920 kbit/s.
3840 bits payload
3840 bits parity 3840 bits parity3840 bits system
3840 bits symbols
3840 bits symbols
7680 chips
1/3 coding
Puncture
BPSK modulation
Spreading (SF=2)
2 ms
7680 chips/2 ms=3.84 Mcps
Channel Timing and Multi-Code Transmission
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Channel Timing and Multi-Code Transmission
SI SI+data Retransmission
1
23
4
E-DPDCH
E-DPCCH
E-AGCH
E-RGCH
E-HICH
1.
2.
3.
4.
Grant
Ack/Nack
Control Info
10ms
14~16ms
8ms
30ms
1 2 3 4 5 6
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Contents
Chapter-1 Introduction
Chapter-2 HSUPA Physical Layer
Chapter-3 Scheduling Principles
Chapter-4 Power Control and Mobility
Chapter-5 HSUPA MAC Layer
Rise-over-Thermal Noise
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Rise over Thermal Noise
Rise-over-Thermal (RoT) reflects the measurement
value of the uplink load.
In order to correctly demodulate the data received
by the NodeB, the Signal-to-Interference-Noise
Ratio (SINR) must be the minimum.
1- The increase of the user number and transmit
power leads to the increase of the uplink
interference.
2- The NodeB senses the noise raise and SINR is
influenced.
3- The NodeB controls the total uplink interference
by adjusting the Grant for every UE.
4, 5 - The UE transmits the data based on the Grant,the volume of data to be sent, and the available
transmit power.
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Node-B Scheduling
UE1 UE2 UE3
The NodeB allocates resources among multiple UEs in the unit of TTI,
and notifies the UE through Grant.
The NodeB tries to satisfy the demand of all online users under the
precondition of preventing overload, maximizing resource utilization ratio,
and maximizing the cell throughput.
The scheduler of HSUPA needs to consider the channel condition, the
data volume to be sent in the UE buffer, and the available transmit powerof the UE.
HSUPA Channel Operation
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HSUPA Channel Operation
1. The UE sends a Transmission Requestto
the Node B for getting resources.
2. The Node B responds to the UE with a
Grant Assignment, allocating Uplink band
to the UE.
3. The UE uses the grant to select the
appropriate transport format for the Data
Transmissionto the Node B.
4. The Node B attempts to decode the received
data and send ACK/NAK to the UE. In case
of NAK, data may be retransmitted.
HSUPA Channel Operation
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HSUPA Channel Operation
The UE sends a resource request.
The UE reports the Scheduling Information (SI).
The UE reports the happy bit.
The NodeB controls the transmit power of the UE.
The NodeB grants a Traffic-to-Pilot ratio to the UE, which determines the transmit
rate of the UE.
This mode, in which the NodeB grants a T/P value to the UE, is called scheduled
transmission.
The NodeB satisfies the demand of the delay-sensitive services.
The NodeB adopts the non-grant mode for delay-sensitive services, that is, the RNC
allocates a certain amount of resources directly to the UE, and the UE can use the
resources at any time rather than waiting for the scheduling result.
HARQ Mechanism
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HARQ Mechanism
The Stop and Wait (SAW) protocol for multi-channel
or multi-process is performed through four (TTI=10
ms) or eight (TTI=2 ms) processes.
Each Radio Link (RL) sends the feedback
respectively.
Each RL establishes one E-HICH.
The E-HICH information sent by each Radio
Links set (RLs) is the same and can be combined.
If all E-HICHs return ACK, then the transmission
succeeds.
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Contents
Chapter-1 Introduction
Chapter-2 HSUPA Physical Layer
Chapter-3 Scheduling Principles
Chapter-4 Power Control and Mobility
Chapter-5 HSUPA MAC Layer
E-DPCCH Physical Channel Power Control
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E DPCCH Physical Channel Power Control
The E-DPCCH has a power offset with the uplink DPCCH.
ec is the gain factor of the E-DPCCH.
E-DPCCH is designated by the higher layer, which can be specified by parametersettings.
2010DPCC HE
cec
20
10
DPCCHE
Signalling values for D E-DPCCH
Quantized amplitude ratios
for
8 30/15
7 24/15
6 19/15
5 15/15
4 12/15
3 9/15
2 8/15
1 6/15
0 5/15
E-DPDCH Physical Channel Power Control
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E-DPDCH Physical Channel Power Control
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E-DPDCH Gain Factor
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The E-DPDCH has a power offset with the uplink DPCCH.
ed is the gain factor of E-DPDCH, which can be calculated through ed,ref.
ed,ref is the gain factor of the reference E-TFC.
E-DPDCHand harq are designated by the higher layer, which can be
specified by the parameter setting.
20, ,
, , ,
, ,
10
harq
e ref e j
ed j harq ed ref
e j e ref
L K
L K
20,
10
DPDCHE
crefed
ed,j,harq - Gain factor of the current E-TFC.
Le,ref- E-DPDCH Quantity of the reference E-TFC
Le,j - E-DPDCH number of the current E-TFC.
Ke,ref- Number of transport block bits of the reference E-TFC.
Ke,j - Number of transport block bits of the current E-TFC.
Reference E-TFC
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How to determine the reference E-TFC of each frame?
The reference E-TFC is the system-specified
reference E-TFC.
Suppose the reference E-TFCs are 1, 2, ...m-1,m
(m is the maximum reference E-TFC), then the E-
TFCs between m-1 and m shall take m-1 as the
reference E-TFC.
The E-TFCs larger than m shall take m as the
reference E-TFC.
The E-TFCs smaller than 1 shall all select 1 as the
reference E-TFC.
E-TFCReference E-
TFC
E-TFC 10 E-TFC 9
E-TFC 9 E-TFC 9
E-TFC 8 E-TFC 5
E-TFC 7 E-TFC 5
E-TFC 6 E-TFC 5
E-TFC 5 E-TFC 5
E-TFC 4 E-TFC 2
E-TFC 3 E-TFC 2
E-TFC 2 E-TFC 2
E-TFC 1 E-TFC 2As shown in the right figure, E-TFC 2/5/9
are the specified reference E-TFCs.
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E-AGCH/E-RGCH/E-HICH Power Control
Two power control modes
Static power allocation
P = Pcpich + PowerOffset
Dynamic power allocation (based on the downlink DPCH)
---Every kind of channel can have a different PO. The specific
implementations are different, and are not defined in the protocol.
HSUPA Active Set
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DPCH Active Set
E-DCH Active Set
Serving RLs
E-DCH
serving
cell
serving
RL
serving
RL
Non-
serving
RL
Non-
serving
RL
Other AS
Cell
Other AS
Cell
Send the E-
AGCHThe UE can merge the E-
RGCH commands sent by
the cells in the RLs.
Send the non-serving E-RGCH
All cells belong to the UE
active set and can process
the E-DCH.
E-DCH Active Set and Mobility
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y
There are three different types of Radio Links
in the UE Active Set:
Serving E-DCH CellThe cell from which UE
receives AGCH from scheduler.
Serving (E-DCH) RLSSet of cells that
contain at least the serving cell and from which
the UE can receive and combine the servingRGCHs.
Non-Serving RLSCell that belongs to the E-
DCH Active Set but does not belong to the
serving RLS and from which the UE can receive
a RGCH.
HSUPA Serving Cell Change
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HSUPA Serving Cell Change
HSUPA Serving Cell is the same as HSDPA Serving Cell
C
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Contents
Chapter-1 Introduction
Chapter-2 HSUPA Physical Layer
Chapter-3 Scheduling Principles
Chapter-4 Power Control and Mobility
Chapter-5 HSUPA MAC Layer
HSUPA Protocol Stack
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SM (Session M anagement )
GM M (Gprs M obi l i t y M anagement)
RRC(Radio Resour ce Cont r ol)
RLC(Radio Li nk Cont rol )
M AC-es and M AC-d (M edium Access Cont ro l)
M AC-e
Physical Layer
Iub Interf ace Prot ocols
Iu Interf ace Prot ocols
UE Node B RNC SGSN
MAC-e and MAC-es are new entities in Release 6.
MAC Structure at the UE Side
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MAC Structure at the UE Side
ssociated
ownlinki nallin
E-DCH
MAC-d
FACH RACH
DCCH DTCHDTCH
DSCH DCH DCH
MAC Control
USCH( TDD only )
CPCH( FDD only )
CTCHBCCH CCCH SHCCH( TDD only )
PCCH
PCH FACH
MAC-c/sh
USCH( TDD only )
DSCH
MAC-hs
HS-DSCH
Associated
Uplink
Signalling
Associated
Downlink
Signalling
MAC-es /MAC-e
Associated
Uplink
Signalling
Details of MAC-es/e at the UE Side
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MAC-es/e
MAC Control
Associated UplinkSignalling E-TFC
(E-DPCCH)
To MAC-d
HARQ
Multiplexing and TSN settingE-TFC Selection
Associated SchedulingDownlink Signalling
(E-AGCH / E-RGCH(s))
Associated ACK/NACKsignaling(E-HICH)
MAC Structure at the UTRAN Side
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FACH RACH
DCCH DTCHDTCH
DSCH
MAC Control
Iur or local
MAC Control
DCH DCH
MAC-d
USCHTDD only
MAC-c/sh
CPCHFDD only
CCCH CTCHBCCH SHCCH
TDD only
PCCH
FACHPCH USCHTDD only
DSCH
MAC Control
HS-DSCH HS- DSCH
Associated Uplink
SignallingAssociated Downlink
Signalling
MAC-hs
Configuration
without MAC-c/shConfiguration
with MAC
Configuration
with MAC-c/sh
E-DCH
Associated Uplink
SignallingAssociated Downlink
Signalling
MAC Control
MAC-es
MAC-e
MAC Control
Iub
c/sh
Details of MAC-e at the NodeB Side
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In the NodeB, there isan MAC-e entity and
an E-DCH scheduler
for each UE. The
MAC-e and the E-DCH
scheduler process
HSUPA-related
functions in the NodeB.
MAC-e
MAC Control
E-DCH
AssociatedDownlinkSignalling
AssociatedUplink
Signalling
MAC-d Flows
De-multiplexing
HARQ entity
E-DCHControl (FFS)
E-DCHScheduling (FFS)
Details of MAC-es at the RNC Side
To MAC-d
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In the SRNC, there is an
MAC-es entity for each UE.
The MAC-es sublayer
processes the E-DCH-
related functions that are
not covered by the MAC-e
entity in the NodeB.
MAC-es
MAC Control
FromMAC-e inNodeB #1
Disassembly
Reordering QueueDistribution
Reordering QueueDistribution
Disassembly
Reordering/Combining
Disassembly
Reordering/Combining
Reordering/Combining
FromMAC-e inNodeB #k
MAC-d flow #1 MAC-d flow #n
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Thank you.
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