04 hsupa principles_v2

8/3/2019 04 HSUPA Principles_V2

1/58

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

HUAWEI Confidential

Internal

HSUPA Principles


2/58

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 2

Contents

Chapter-1 Introduction

Chapter-2 HSUPA Physical Layer

Chapter-3 Scheduling Principles

Chapter-4 Power Control and Mobility

Chapter-5 HSUPA MAC Layer


3/58


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


4/58


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


5/58


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


6/58


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


7/58


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


8/58


HUSPA UE Capabilities

* Maximum Peak data rate for 10 ms E-DCH TTI operation is 2 Mbps in all configurations


9/58


Contents







10/58


Channel Mapping

In RAN 10, the mapping from DCCH to HS-DSCH/E-DCH is implemented.


11/58


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.


12/58


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


13/58


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


14/58


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.


15/58


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


16/58


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


17/58


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


18/58


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


19/58


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.


20/58


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


21/58


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.


22/58


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


23/58


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.


24/58


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


25/58


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


26/58


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


27/58


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


28/58


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


29/58


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


30/58


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


31/58


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


32/58


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


33/58


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


34/58


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


35/58


Contents






Rise-over-Thermal Noise


36/58


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.


37/58


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


38/58



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.



39/58



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


40/58


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.


41/58


Contents






E-DPCCH Physical Channel Power Control


42/58


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


43/58


E-DPDCH Physical Channel Power Control


44/58


E-DPDCH Gain Factor


45/58


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


46/58


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.


47/58


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


48/58


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


49/58


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


50/58


HSUPA Serving Cell Change

HSUPA Serving Cell is the same as HSDPA Serving Cell

C


51/58

HUAWEI TECHNOLOGIES CO., LTD. HUAWEI ConfidentialPage 51

Contents






HSUPA Protocol Stack


52/58

HUAWEI TECHNOLOGIES CO., LTD.

HUAWEI ConfidentialPage 52

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


53/58

HUAWEI TECHNOLOGIES CO., LTD.HUAWEI Confidential

Page 53

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


54/58


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


55/58


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


56/58


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


57/58


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



FromMAC-e inNodeB #k

MAC-d flow #1 MAC-d flow #n


58/58

Thank you.

www.huawei.com

04 hsupa principles_v2

Documents