6 HSDPA Technology 51

HSDPA Technology

ZTE University

TD&W&PCS BSS Course Team

Driver to HSDPA

HSDPA Theory

HSDPA Terminal and Commercial

Situation

HSDPA Solution

Content

Competition to operator

Introduce HSDPA Introduce HSDPA to WCDMAto WCDMA

Introduce HSDPA Introduce HSDPA to WCDMAto WCDMA

2.5G GPRS: 9.05 -171.2kbit/s,

Service deployment is bad CDMA2000 1x: 153.6kbit/s,

Service deployment is good

3GCDMA 1x EV-DO: 2.4Mbit/sWCDMA R99/R4: 2Mbit/s

Peak data rate (Kbps)

Mean data rate (Kbps)

R99

Driver to HSDPA

The driver to HSDPA

HSDPA is a new technology to enhance WCDMA PS data service

HSDPA gives subscribers new experience of more higher speed data s

ervice with shorter time delay

HSDPA brings more bandwidth and more online subscribers

It is necessary and feasible to introduce HSDPA to WCDMA network

With consideration of network planning and deployment cost, HSDPA s

hould be applied at the beginning, or at least the Node B should hardw

are ready for HSDPA

HSDPA brings new requirement of transmission and network planning.

Pay more attention to it

High Speed Downlink Packet Access

Driver to HSDPA

HSDPA, Mature technology

2002.6 R5 released

2003.6 HSDPA (High Speed Downlink Packet Access) was added into R5

2002.6 R5 released

2003.6 HSDPA (High Speed Downlink Packet Access) was added into R5

HSDPA is smoothly evolved from WCDMA R99 without any big effect to the existing

R99 network

1 new transport channel: HS-DSCH

3 new physical channels： HS-PDSCH, HS-SCCH and HS-DPCCH

MAC-hs sub-layer, HARQ (Fast Hybrid Automatic Repeat reQuest), Fast Scheduling

and AMC (Adaptive Modulation and Coding)

HSDPA is smoothly evolved from WCDMA R99 without any big effect to the existing

R99 network

1 new transport channel: HS-DSCH

3 new physical channels： HS-PDSCH, HS-SCCH and HS-DPCCH

MAC-hs sub-layer, HARQ (Fast Hybrid Automatic Repeat reQuest), Fast Scheduling

and AMC (Adaptive Modulation and Coding)

HSDPA --Max. downlink data rate: 14.4Mbps

Driver to HSDPA

Competition advantage of HSDPA

Standard Data rate (Mbps) Subscribers per cell

WCDMA R99/R4 2M31×PS64k, 15×PS128k or 7×PS384k

(SF=32, SF=16 or SF=8)

HSDPA 14.464

(117.7kbps per user, SF=16, R=3/4, 16QAM)

CDMA2000 1x EV-DO

2.459

(only tens of kbps, 200kbps when 8 users is configured)

HSDPA supports more users while provides higher data rate!HSDPA supports more users while provides higher data rate!

Driver to HSDPA

Perspective of HSDPA application

HSDPA ModemHSDPA fixed terminalFlexible access

HSDPA ModemHSDPA fixed terminalFlexible access

Higher data rateMore usersRicher serviceObvious advantage to compete with other 3G technology like CDMA2000

Higher data rateMore usersRicher serviceObvious advantage to compete with other 3G technology like CDMA2000

HSDPA data cardHSDPA PDA

Mixed with WMAN (WiMAX)and WLAN (Wi-Fi), more advantage ofbroadband wireless access

HSDPA data cardHSDPA PDA

Mixed with WMAN (WiMAX)and WLAN (Wi-Fi), more advantage ofbroadband wireless access

HSDPA handset

HSDPA Modem

HSPDA data card

HSDPA PDAWCDMA R99/R4 coverage

HSDPA coverage

HSDPA, roundly improves the value of WCDMA network

Driver to HSDPA

Driver to HSDPA

HSDPA Theory


Situation

HSDPA Solution

Content

Evolve from R99/R4 to HSDPA

L2

L1

DSCH FP

RLC

L2

L1

DSCH FP

Iub/ Iur

PHY

MAC

PHY

RLC

Uu

MAC-d

HS-DSCHFP

HS-DSCHFP

MAC-hs

PHY(add 3

channels)

RNC, Node B: add HS-DSCH FP protocol process, involve Iub/Iur

Node B: add MAC-hs, responsible for AMC, HARQ, etc. Node B: add 3 physical channels: HS-PDSCH,HS-SCCH,HS-DPCCH

UE: add MAC-hs, physical channels and process, modulation

MAC(add

MAC-hs)

PHY(add

process)

UE UTRAN

HSDPA Theory

New physical channels of HSDPA

HS-PDSCH is the bearer of HS-DSCH, transfer HSDPA user data (downlink) 2ms TTI, 3 slots, spread factor is fixed to 16, multiple users & multiple codes, modulation method: QPSK and 16QAM

HS-SCCH bears information of HS-DSCH such as UE specialized mask code, modulation and coding policy, etc. (downlink) 2ms TTI, 3 slots, spread factor is fixed to 128

HS-DPCCH bears feedback information of HS-PDSCH such as Channel Quality Indication (CQI), H-ARQ confirm information ACK/NACK, etc. (uplink) 2ms TTI, 3 slots, spread factor is fixed to 256

HS-DPCCH

HS-PDSCH

HS-SCCHUE

DPCH

DCCH（信令）＋UL DTCH（PS业务）

DL DTCH (PS业务)

CN UTRAN

R99 channel

HSDPA channel

HSDPA Theory

HSDPA working procedure

RNCNode B(AMC and HARQ)

Data Packet

⑤ACK/NACK （ HS-DPCC

H ）

⑥Data packet + re

-send (if need)

(HS-DSCH)

AMC, modulation and coding selection

HARQ, lowers the time delay, improves the

data throughput

Fast scheduling, quick decision

AMC, modulation and coding selection

HARQ, lowers the time delay, improves the

data throughput

Fast scheduling, quick decision

①CQI （ HS-DPCCH ）

③HS-DSCH parameters (HS-SCCH)

Data (HS-DSCH)

②Evaluation, HS-DSCH parameters setting

④Receive data from HS-DSCH according to Detecting HS-SCCH

HSDPA Theory

Key technology: AMC (1)

Adaptive Modulation and

Coding (AMC), Node B can

adjust modulation (QPSK,

16QAM) and coding rate (1/3,

3/4, etc) in time according to the

feedback channel state from

UE. So data transferring can

follow the step of channel state

changing in time, it is a good

technology for link self-adaptive

For long time delay packet data,

AMC can improve system

capacity without add

interference to neighbor cells

Standard AMC Remark

R99/R4 N Quick power control

HSDPA Y Satisfy 15dB SIR dynamic range

HSDPA Theory


Node BNode B

CQI (Report periodically)CQI (Report periodically)

Modulation (QPSK, 16QAM) self-adaptiveGood channel state: 16QAMBad channel state: QPSK

Coding rate (1/3, 3/4, etc.) self-adaptiveGood channel state: 3/4Bad channel state: 1/3

Efficiently utilize the channel condition

Good channel state: higher speedBad channel state: lower speed

Codes adjustingGood channel state: more codesBad channel state: fewer codes

HSDPA Theory


Standard Data rate (kbps) SF Modulation Coding rate

R99/R4 384 8 QPSK 1/2

HSDPA 720 16 16QAM 3/4

HSDPA, the service bearing ability of one channel is further larger than R99/R4 by using more efficient modulation and coding rate, while SF is twice as R99/R4

As using bigger SF, system can support more users

HSDPA, R99/R4 channel bearing ability comparison16QAM and higher coding rate

HSDPA Theory


Modulation coding

rate

Data rate

(1 code)

Data rate

(5 codes)

Data rate

(15 codes)

QPSK 1/4 120kbps 600kbps 1.8Mbps

QPSK 1/2 240kbps 1.2Mbps 3.6Mbps

QPSK 3/4 360kbps 1.8Mbps 5.4Mbps

16QAM 1/2 480kbps 2.4Mbps 7.2Mbps

16QAM 3/4 720kbps 3.6Mbps 10.8Mbps

HSDPA throughput, relative with modulation & coding rate

HSDPA can provide data rate per user up to 10.8Mbps (16QAM, 3/4) by

AMC and multiple codes technology

In the situation of high speed, HSDPA requires high channel condition

Multiple coding rates

HSDPA Theory

Key technology: HARQ (1)

Hybrid Automatic Repeat reQuest (HARQ) is a co

mbined technology with Forward Error Correction

(FEC) and Automatic Repeat reQuest (ARQ)

HARQ can provide flexible and subtle adjustment f

or its process by cooperated with AMC

Hybrid Automatic Repeat reQuest (HARQ) is a co

mbined technology with Forward Error Correction

(FEC) and Automatic Repeat reQuest (ARQ)

HARQ can provide flexible and subtle adjustment f

or its process by cooperated with AMC

Standard HARQ Remark

R99/R4 NFEC is in high layerARQ is in RLC layer, channel feedback is slow

HSDPA Y Includes physical layer HARQ and HARQ entity in MAC-hs

L1 HARQ

HARQ

MAC-hs

TFRC

L1

L2

HSDPA Theory

Key technology: HARQ (2)

Advantage: improve transferring reliabilityDisadvantage: lower utilization in bad channel state

Advantage: good performance in lower Bit Error Rate (BER)Disadvantage: bad performance in high BER

FEC

ARQ

HARQ

Combine FEC and ARQ, each sending packet includes error detection bit and error correction bit

Packet A confirm

Packet A confirm

Error packet AError packet A

Packet APacket A

Packet APacket A

Error packet AError packet A

Packet APacket A

Packet A missing dataPacket A missing data

Packet A missing data

Packet A missing data

HARQ phase I（ Resending is in RNC ， R99 ）

HARQ phase II, III（ Resending is in Node B, HSDPA ）

Packet APacket A

Discard Reserve

Resend whole packet Resend data

Soft combination

Resend requirement

Resend requirement

Packet BPacket BPacket BPacket B

Send SendReceive Receive

Lower efficiencyLonger time delay

Higher efficiencyShorter time delay

HSDPA Theory

Key technology: Quick scheduling (1)

With quick channel

feedback, HSDPA

can suitably adjust

coding rate, codes,

modulation, etc. in

time according to

the channel state

Standard TTI (ms)Channel feedback

time delay (ms)Remark

R99 10 100 (at least)

HSDPA 2 5.67Supports continuous feedback, R5 also supports 10ms TTI

HS-PDSCH

HS-SCCH

HS-DPCCH (ACK/ NACK and CQI )

HS-SCCH

2 TS 7. 5 TS +/ - 128 Chi p N TS

1 TS = 2560 Chi pHSDPA channel

feedback time delay

is about 8.5 TS

Quick channel feedback

HSDPA Theory

Key technology: Quick scheduling (2)Scheduling policy

Time fairness

Traffic fairness

Max-C/I

Proportional fairness

Every user get equal service time, but the traffic maybe not equal, the fairest algorithm but has the lowest traffic

Every user get the same traffic, but the time maybe not equal, has the lower utility of system resource because it will schedule the UE with bad channel state

Only the user in best channel state (biggest C/I) will get the service priority in each turn, the biggest traffic but has the worst fairness

Weighted compromise of above algorithms and has bigger system traffic and better service fairness

UE1

HSDPA Theory

Advantage of HSDPA

Comparing item R99/R4 HSDPA

System capacity (Mbps) 2.668 14.4

Spectrum efficiency

(Kbit/(MHz*Cell))537.6 2795.2

System handover

Inter-frequency hard HO

Intra-frequency soft HO

Intra-frequency softer HO

Inter-system HO (GSM)

Only hard handover

Power controlOpen loop, Close loop (Inner loop, Outer loop)

PC, Quick, Slow PC

HS-PDSCH adopts slow PC or even

no power control

Modulation QPSK QPSK, 16QAM

Link adaptive technology Quick PC and soft HOAMC, HARQ, Short TTI and Quick

channel feedback

MAC-hs N/A For faster scheduling

Provides various speed with stable power

(stable power, adjustable speed)

Adjust power to guarantee service speed

(stable speed, adjustable power)

HSDPA R99/R4

HSDPA Theory

Driver to HSDPA

HSDPA Theory


Situation

HSDPA Solution

Content

Terminal Changing caused by HSDPAUE changing

Powerful 3G terminals

Much more powerful, attractive HSDPA terminals

faster processor larger memory advanced receive and process algorithm 16QAM demodulation, multiple decoding MAC-hs process multiple codes

HSDPA terminal, first choice for high-end commercial application

HSDPA Terminal and Commercial Situation

HSDPA terminal category and capability

UE categoryMaximum channels

Minimal TTI interval

Maximum service speed (Mbps)

Modulation

Category 1-6 5 3 - 1 1.2~3.65

QPSK16QAM

Category 7 10 1 7.2

Category 8 10 1 7.2

Category 9 15 1 10.12

Category 10 15 1 14.4

Category 11-12 5 2 1.8 QPSK

Different UE supports various channels, minimal TTI and other parameters UE listed in Category 11 is in worst receive capability, Category 10 is the best

HSDPA terminal

HSDPA handset HSDPA pc card HSDPA PDA


HSDPA commercial process

Terminals

2005 2Q, several manufacture promote HSDPA trial version terminal

2005 4Q, promote commercial HSDPA terminal

Operator to deploy HSDPA

Cingular plan to deploy HSDPA in major city, 2006; till the end of 2006, to provide the HSDPA service in most part of metropolitans.

NTT Docomo will deploy HSDPA in first quarter 2006; In UK, mmO2 will launch the service in fourth quarter 2005； in HK H3G will provide commercial service in first quarter 2006

Terminals

2005 2Q, several manufacture promote HSDPA trial version terminal

2005 4Q, promote commercial HSDPA terminal

Operator to deploy HSDPA

Cingular plan to deploy HSDPA in major city, 2006; till the end of 2006, to provide the HSDPA service in most part of metropolitans.

NTT Docomo will deploy HSDPA in first quarter 2006; In UK, mmO2 will launch the service in fourth quarter 2005； in HK H3G will provide commercial service in first quarter 2006

HSDPA standard has been determined

HSDPA has adequate test instruments

HSDPA technology has been tested in application

Manufactures provide HSDPA commercial terminals in 2005

USA, Japan and the other operators start the HSDPA network construction

ZTE equipment are HSDPA ready


High data service brings new experience

Colorful emailColorful emailMulti-accessMulti-access

这家餐厅好像不错是啊，明天去吧

Adopt the HSDPA, operator can provide higher bandwidth service.

To deploy new service.

Multimedia DownloadMultimedia Download

NEWSNEWS MOVIEMOVIE MUSICMUSIC

Cartoon mailCartoon mail


Driver to HSDPA

HSDPA Theory


Situation

HSDPA Solution

Content

HSDPA link budget R99/R4 link budget

Mode1 Mode2 Mode3 CS12.2 CS64 PS384

TX

NodeB TX power 40 40 40 27 30 38

Antenna gain 18 18 18 18 18 18

Cable loss 2 2 2 2 2 2

EIFR 56 56 56 43 46 54

RX

Thermal noise density -174 -174 -174 -174 -174 -174

Thermal noise -108.157 -108.157 -108.157 -108.1566878 -108.1566878 -108.157

Noise figure 5 5 5 5 5 5

Interference margin 3 3 3 3 3 3

Service rate 423 368 635 12.2 64 384

Code number 5 4 5 1 1 1

Process gain 19.579909 10.18483 7.815575 24.9797 17.7815125 10

Eb/No 9 9 9 7.2 7.1 6.4

Rx sensibility -100.737 -101.342 -98.9723 -117.9364017 -110.8382003 -103.757

UE antenna gain 0 0 0 0 0 0

Body loss 0 0 0 2 0 0

Others

Fast fading margin 0 0 0 2 2 2

Soft handover gain 0 0 0 2 2 2

Fading deviation 8 8 8 8 8 8

Penetration loss 20 20 20 20 20 20

Max path loss 128.7366 129.3415 126.9723 130.9364017 128.8382003 129.7567

HSDPA can achieve the same coverage as R99/R4 under same data rate

Link budget for HSDPA

HSDPA Solution

Combination of HSDPA and R99/R4

HSDPA makes the balance between the coverage and the throughput, increase the coverage decrease the throughput.

HSDPA provides about 200kbps in the edge of cell, Less than the R99/R4 DCH.

Recommend to combine the HSDPA and R99/R4 DCH together, at the edge of cell UE can “handover” into DCH. With this combination, you can take the most advantage from R99/R4 and HSDPA.

HSDPA makes the balance between the coverage and the throughput, increase the coverage decrease the throughput.

HSDPA provides about 200kbps in the edge of cell, Less than the R99/R4 DCH.

Recommend to combine the HSDPA and R99/R4 DCH together, at the edge of cell UE can “handover” into DCH. With this combination, you can take the most advantage from R99/R4 and HSDPA.

0 10 20 30 40 50 60 70 80 90 1000

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000D

L C

ap

ab

ility (

kb

ps)

d istance/cell_radius %

R 99 PSH SD PA

HSDPA Solution


-2 0 2 4 6 8 10 12 14 160

5

10

15N

um o

f H

SD

PA

use

r

Available Num of SF16 for HSDPA

-2 0 2 4 6 8 10 12 14 160

50

100

150

Available Num of SF16 for HSDPA

Num

of

R99

use

r

HSDPA Solution


0 2 4 6 8 10 12 14 16 18 200

1

2

3

4

5

6

Cell H

sdpa T

houghput

Mbit/s

HSDPA User Num

5 codes HSDPA only10 codes HSDPA only15 codes HSDPA only

HSDPA Solution


-13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -330

40

50

60

70

80

90

100R99 Capability Loss

R99

Use

r N

um P

erce

nt %

Total HSDPA Power offset to BsTxPwer (dB)

HSDPA heavy loadHSDPA light load

HSDPA Solution


-13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -330

40

50

60

70

80

90

100R99 Capability Loss

R99

Use

r N

um P

erce

nt %

Total HSDPA Power offset to BsTxPwer (dB)

HSDPA heavy loadHSDPA light load

1 2 3 4 5 6 7 81.5

2

2.5

3

3.5

4

4.5

5

5.5

6

6.5

Sec

torT

hrou

ghpu

t M

bit/

s

User Num

R99 N/AR99 36dBmR99 38dBmR99 40dBm

HSDPA Solution


10 20 30 40 50 60 70 80 90 100 1100

1

2

3

4

5

6T

hrou

ghpu

t M

bit/

s

R99 12.2k User Num

R99 ThroughputHsdpa ThroughputCell Throughput

HSDPA Solution


10 20 30 40 50 60 70 801.5

2

2.5

3

3.5

4

4.5

5

5.5

6H

sdpa

Thr

ough

put

Mbi

t/s

Hsdpa Power/ Cell Tx Power %

0 R99 Users;10 Hsdpa Users20 R99 Users;10 Hsdpa Users40 R99 Users;10 Hsdpa Users60 R99 Users;10 Hsdpa Users

10 20 30 40 50 60 70 802

2.5

3

3.5

4

4.5

5

5.5

6

Cel

l Thr

ough

put

Mbi

t/s

Hsdpa Power/ Cell Tx Power %

0 R99 Users;10 Hsdpa Users20 R99 Users;10 Hsdpa Users40 R99 Users;10 Hsdpa Users60 R99 Users;10 Hsdpa Users

HSDPA Solution

ZTE HSDPA construction solution

If necessary, use a carrier only to support PS data

Network construction plan

Frequency point assignment

Resource condition Advantage and disadvantage

Recommended deployment

Intra-frequency plan

F1: HSDPA+R99/R4 Less inter-frequency handover, admission control, load control and power control can be achieved within one same frequency cell.

Advantage: easy to do resource control

Disadvantage: do not have user detail classification

After the network construction finished, to achieve the high demand of voice and PS downlink.

F2: HSDPA+R99/R4

Inter-frequency planF1: R99/R4

Situation I: if HSDPA frequency point support normal handset, all the resource have to be assigned within various different frequency cells.

Situation II: HSDPA frequency point are only used for PC card, resource management can be achieved more easily.

Advantage: voice user +HSDPA users get good service

Disadvantage: resource control will be difficult in situation I, maybe some frequency point resource will be wasted at the beginning

With the development of 3G, to provide dedicated frequency point for HSDPA PC card (only PS domain)

F2: HSDPA

HSDPA(PC card)

f1 f2 f3

R99/R4+HSDPA

R99/R4+HSDPA

Phase I, IIPhase III

ZTE solution

HSDPA construction area

Phase I :several hot spot,and the important building to deploy HSDPA

Phase II :all the hot spot and several macro sites to deploy HSDPA

HSDPA Solution

Handover between HSDPA and R99/R4

handover

policy

motivation description

Handover based

on traffic

The traffic load for

HSDPA and R99/R4

has large difference.

Then we trigger the

handover

trigger handover while the traffic load of

HSDPA cell is too heavy and the load of

R99/R4 cell is lower, or the traffic load of

different HSDPA cells are not in balance

Handover based

on service

According to the service

type and data rate to

choose HSDPA or

R99/R4 network

Low speed data service can be handled

with FACH, Streaming service can be

handled with DCH; the rest high speed PS

data service or non-real time data service

should be assigned to HSDPAHandover between HSDPA, R99/R4 and DCH/FACH channels， can

guarantee the service stability of HSDPA

HSDPA Solution

Network analysis for HSDPA and R99/R4

After the 3G network construction, the basic demand of WCDMA network

should adopt HSDPA function, with soft smooth upgrade ability

HSDPA is not constructed as a individual network, HSDPA is a enhanced

technology of WCDMA (throughput, users)

Network construction and plan for R99 and HSDPA based on the “one-shot

planning, multi-stage deployment”

HSDPA and R99 share the same network, Node B supports HSDPA

function

At dense traffic area (capacity is restricted), HSDPA can share the

same site of R99 and achieve the same coverage of it.

Capacity and coverage is a balance relationship, increase the network

performance to the maximum by making a balance between them.

After the 3G network construction, the basic demand of WCDMA network

should adopt HSDPA function, with soft smooth upgrade ability

HSDPA is not constructed as a individual network, HSDPA is a enhanced

technology of WCDMA (throughput, users)

Network construction and plan for R99 and HSDPA based on the “one-shot

planning, multi-stage deployment”

HSDPA and R99 share the same network, Node B supports HSDPA

function

At dense traffic area (capacity is restricted), HSDPA can share the

same site of R99 and achieve the same coverage of it.

Capacity and coverage is a balance relationship, increase the network

performance to the maximum by making a balance between them.

HSDPA Solution

HSDPA for major area

Area type Square (km2) Erl

Dense urban 91.5 3527

Urban 179.78 4873

Suburb 3000.5 2100

total 3271.78 10500

Major area have no more than

10% proportion

Major area occupy

80% traffic

Fully HSDPA coverage for major area!

Major area ： dense urban + urban

HSDPA Solution

HSDPA outdoor coverage

Node BNode B

Adaptive modulationGood channel state: 16QAM

Adaptive coding rateGood channel state: 3/4

AMC

HSDPA requires a good channel condition for high speed service: Good channel state Near to Node B

At beginning, HSDPA is suitable for micro Node B coverage of outdoor hotspot

Micro Node B is more suitable for HSDPA

HSDPA Solution

HSDPA indoor coverage

HSDPA indoor coverageHSDPA indoor coverage

CBD (focus on)

Office, hotel, etc

Shopping center, airport, etc

Macro Node B ＋ Indoor distributed system Macro Node B/base band pool ＋ RRU ＋ Indoor distributed system Micro Node B ＋ Indoor distributed system Pico

Solution

Transmission

PicoB01C

RRUB03RPower

distributor

Twisted pair

Fiber

Feeder

Macro Node B or base band

pool

Concern of HSDPA indoor coverage

Is the existing indoor distributed

system of R99/R4 suitable for HSDPA?

Is capacity of the existing indoor

distributed system enough ？ Is the

transmission enough?

the indices of indoor distributed components (like power distributor)

required by HSDPA and R99 are same,So the existing indoor distributed system

of R99/R4 is suitable for HSDPA

the indices of indoor distributed components (like power distributor)

required by HSDPA and R99 are same,So the existing indoor distributed system

of R99/R4 is suitable for HSDPA

HSDPA Solution

Number of sites

(S111)

Site radius

Existing R99

planning

52 537m

Existing R99 sitesExisting R99 sites

HSDPA planning NE Cost of NE Total cost Advantage

Planning the same

number of sites as

R99/R4

CN Same

Add 8％The capacity of PS incr

eases 80 ~120％RNC Add 5％

Node B Add 10％

Planning Area: 30Km2 Subscribers: 80000

HSDPA network planning case study

HSDPA Solution

For capacity R99 cell peak data rate: 7×384Kbp

s=2.688Mbps HSDPA cell peak data rate: 15×960

Kbps×3/4 = 10.8 Mbps Peak throughput of HSDPA cell is

4 times as that of R99 cell Peak traffic of 3CS HSDPA Node B:

10.8×3×1.3×80% ＝ 32M

For traffic mode The PS traffic mode will change

greatly, more PS traffic will rush into

HSDPA system

Peak throughput of HSDPA cell is 4 times as that of R99 cell, and

mean throughput of HSDPA cell is 2 times as that of R99 cell Consider both capacity and traffic mode, transmission resource of Iub

at beginning should be reserved 4 times as before or at least 2 times

Peak throughput of HSDPA cell is 4 times as that of R99 cell, and

mean throughput of HSDPA cell is 2 times as that of R99 cell Consider both capacity and traffic mode, transmission resource of Iub

at beginning should be reserved 4 times as before or at least 2 times

HSDPA requires more transmission resource, because of the changing of capacity of Node B and traffic mode

HSDPA transmission solution

HSDPA Solution

Control

HSDPA Processor

DL Coder

DL Base-band

HSDPA Processor

UL Decoder

UL Base-band

Mid-frequency

After HSDPA Update

Before HSDPA Update

After HSDPA Update

Before HSDPA Update

Iub Interface FeaturesFeatures

Advanced design ， HSDPA functions have been embedded into hardware.

Just update software to support HSDPA functions.

No additional hardware is needed!

ZTE serialized Node B support HSDPA flexible update

HSDPA Solution

HSDPA functions have already been embedded into ZTE serialized Node B

hardware. The base-band processing chip supports 16QAM modulation. Only

software update is needed for Node B to support HSDPA.

Powerful base-band processing ability. For the case of updating the R99 cell into

R99/HSDPA, no more base-band processing board is needed for Node B.

As for RNC and CN, the introduction of HSDPA will only increase the data traffic

which means only additional interface hardware resource are needed.

ZTE Node B is designed based on the most advanced HSDPA technology in the world. It is absolutely ensured that to upgrade from R99 to HSDPA, no board is required to be changed! The base-band processing board also possesses a unique feature that is it supports the networking of HSDPA and R99 with either the same carrier or not! The most advanced base band

processing in the world!The most advanced base band

processing in the world!

ZTE Node B hardware support HSDPA

HSDPA Solution

B09 indoor macro: support up to 3C3S and 6CS RRU

B09A outdoor macro: support up to 3C3S and 6CS RRU

B06C/B03C indoor/outdoor micro: support up to 2C3S/3C1S.

B03R indoor/outdoor RRU: support up to 3C1S

BBUA indoor/outdoor base-band pool: maximum processing capacity is up to 15CS

B01C pico Node B: 1C1S configuration

B09B09

BBUBBBUB

B06CB06C

B03C/B03RB03C/B03R

B09AB09AB01CB01C

ZTE serialized Node B totally support HSDPA

HSDPA Solution

V2.0

V3.0

2004/4Q 2005/3Q Time

Version

2003/2Q

V4.0

V4.5

2006/1Q

R99

R4

R5HSDPAPhase I

R5HSDPAPhase II

Serialized Node B hardware support HSDPA

Completed HSDPA trial system

Serialized Node B hardware support HSDPA

Completed HSDPA trial system

HSDPA commercial

phase I

HSDPA commercial

phase I

HSDPA commercial

phase II

HSDPA commercial

phase II

HSDPA PC card, 05/3Q test, 06/1Q commercial

HSDPA terminal, 06/1Q test, 06/2Q commercial

ZTE HSDPA Roadmap

HSDPA Solution

HSDPA PC card (MU330)

Functions WCDMA 2.1GHz, GSM900/1800/1900

WCDMA 384KDL/128KUL, GPRS Class 10

SMS, Voice

HSDPA

ETSI AT command interface

OS: Windows 2000, XP

Language: Chinese, English, etc.

3V SIM/USIM card

HSDPA Solution

HSDPA handset (Q508)

Functions WCDMA, GSM900/1800/1900

WCDMA 384DL/128KUL, GPRS Class 10

Voice, MMS, WAP, Email, JAVA, Download

Video phone, Streaming media, PTT

LCS (A-GPS)

MP3/MPEG4

Blue tooth/USB/mini-SD

HSDPA

Specs Dual camera (2000K pixels)

Dual LCD: 260K colors

Main LCD: 2.2”（ 240×320） MIDI: 72 chord

HSDPA Solution

ZTE HSDPA solution conclusion

ZTE serialized Node B is already hardware ready for

downlink 14.4M, only software upgrade is needed

ZTE RNC and CN, unified platform, 80G switching

capability, high integration, high capacity, smooth

evolution, to ensure the deployment of HSDPA

HSDPA can share carrier with R99/R4, or use a

exclusive carrier

Support handover between HSDPA, R99/R4 and 2G

Support simultaneous service of HSDPA and voice

(or video telephony)

Support at least 64 users per cell

HSDPA can share base band board with R99/R4

All the Node Bs support HSDPAAll the Node Bs support HSDPA

HSDPA Solution

Exercise

pls describe the differentia of HSDPA and R4.

HSDPA introduce new physical channels, they are ( )

( ) ( ).

pls describe the key technology of AMC

pls describe the key technology of HARQ.

pls write down the main quick scheduling methods.

Documents

6 HSDPA Technology 51