zte-hsdpa

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

to WCDMA

2.5G

GPRS: 9.05 -171.2kbit/s,

Service deployment is bad

CDMA2000 1x: 153.6kbit/s,

Service deployment is good

3G

CDMA 1x EV-DO: 2.4Mbit/s

WCDMA 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

service 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

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

hardware 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

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 channelsHS-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 2M 31PS64k, 15PS128k or 7PS384k

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

HSDPA 14.4

64

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

16QAM)

CDMA2000 1x EV-

DO 2.4

59

(only tens of kbps, 200kbps when 8

users is configured)

HSDPA supports more users while provides higher data rate!

Driver to HSDPA

Perspective of HSDPA application

HSDPA Modem

HSDPA fixed terminal

Flexible access

Higher data rate

More users

Richer service

Obvious advantage to compete with

other 3G technology like CDMA2000

HSDPA data card HSDPA PDA

Mixed with WMAN (WiMAX)

and WLAN (Wi-Fi), more advantage of

broadband wireless access

HSDPA handset

HSDPA Modem

HSPDA data card

HSDPA PDA WCDMA 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-DSCH

FP

HS-DSCH

FP

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-SCCH

UE

DPCH

DCCHUL DTCHPS

DL DTCH (PS)

CN UTRAN

R99 channel

HSDPA channel

HSDPA Theory

HSDPA working procedure

RNC Node B

(AMC and HARQ)

Data Packet

AMC, modulation and coding selection

HARQ, lowers the time delay, improves the

data throughput

Fast scheduling, quick decision

Evaluation, HS-DSCH parameters setting

Receive 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 B

CQI (Report periodically)

Modulation (QPSK, 16QAM) self-adaptive

Good channel state: 16QAM Bad channel state: QPSK

Coding rate (1/3, 3/4, etc.) self-adaptive

Good channel state: 3/4 Bad channel state: 1/3

Efficiently utilize the channel condition

Good channel state: higher speed Bad channel state: lower speed

Codes adjusting

Good channel state: more codes

Bad 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 comparison 16QAM 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

combined technology with Forward Error

Correction (FEC) and Automatic Repeat reQuest

(ARQ)

HARQ can provide flexible and subtle adjustment

for its process by cooperated with AMC

Standard HARQ Remark

R99/R4

N FEC is in high layer

ARQ 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 reliability

Disadvantage: lower utilization in bad

channel state

Advantage: good performance in

lower Bit Error Rate (BER)

Disadvantage: bad performance in

high BER

F

E

C

A

R

Q

H

A

R

Q

Combine FEC and ARQ, each

sending packet includes error

detection bit and error correction bit

Error packet A

Packet A

Packet A

Error packet A

Packet A

Packet A

missing data

Packet A

missing

data

HARQ phase I

Resending is in RNCR99

HARQ phase II, III

Resending is in Node B, HSDPA

Packet A

Discard Reserve

Resend

whole packet Resend data

Soft

combination Packet B Packet B

Send Send Receive Receive

Lower efficiency

Longer time delay

Higher efficiency

Shorter 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 5.67

Supports 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 Chip N TS

1 TS = 2560 ChipHSDPA 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 control Open 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 HO AMC, 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 HSDPA UE 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 category Maximum

channels

Minimal TTI

interval

Maximum service speed

(Mbps) Modulation

Category 1-6 5 3 - 1 1.2~3.65

QPSK

16QAM

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 2005in 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 email Multi-access

Adopt the HSDPA, operator can provide higher bandwidth service.

To deploy new service.

Multimedia Download

NEWS MOVIE MUSIC

Cartoon 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.

0 10 20 30 40 50 60 70 80 90 1000

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000DL Cap

abilit

y (kbp

s)

distance/cell_radius %

R99 PS

HSDPA

HSDPA Solution


-2 0 2 4 6 8 10 12 14 160

5

10

15N

um

of

HS

DP

A u

ser

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 u

ser

HSDPA Solution


0 2 4 6 8 10 12 14 16 18 200

1

2

3

4

5

6

Cel

l Hsd

pa T

houg

hput

Mbi

t/s

HSDPA User Num

5 codes HSDPA only

10 codes HSDPA only

15 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 U

ser

Num

Perc

ent

%

Total HSDPA Power offset to BsTxPwer (dB)

HSDPA heavy load

HSDPA 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 U

ser

Num

Perc

ent

%

Total HSDPA Power offset to BsTxPwer (dB)

HSDPA heavy load

HSDPA 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

Secto

rThro

ughput

Mbit/s

User Num

R99 N/A

R99 36dBm

R99 38dBm

R99 40dBm

HSDPA Solution


10 20 30 40 50 60 70 80 90 100 1100

1

2

3

4

5

6

Thro

ughput

Mbit/s

R99 12.2k User Num

R99 Throughput

Hsdpa Throughput

Cell Throughput

HSDPA Solution


10 20 30 40 50 60 70 801.5

2

2.5

3

3.5

4

4.5

5

5.5

6

Hsdpa T

hro

ughput

Mbit/s

Hsdpa Power/ Cell Tx Power %

0 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

Cell

Thro

ughput

Mbit/s

Hsdpa Power/ Cell Tx Power %





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 plan

F1: 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, II Phase 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 HSDPA Handover between HSDPA, R99/R4 and DCH/FACH channelscan

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.

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 areadense urban + urban

HSDPA Solution

HSDPA outdoor coverage

Node B

Adaptive modulation

Good channel state: 16QAM

Adaptive coding rate

Good 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 coverage

CBD (focus on)

Office, hotel, etc

Shopping center, airport, etc

Macro Node BIndoor distributed system Macro Node B/base band poolRRU Indoor distributed system

Micro Node BIndoor distributed system Pico

Solu

tion

Transm

ission

Pico

B01

C

RRU

B03

R Power

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 enoughIs 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

HSDPA Solution

Number of sites

(S111)

Site radius

Existing R99

planning

52 537m

Existing 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

increases 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:

7384Kbps=2.688Mbps

HSDPA cell peak data rate:

15960Kbps3/4 = 10.8 Mbps

Peak throughput of HSDPA cell is

4 times as that of R99 cell

Peak traffic of 3CS HSDPA Node B:

10.831.380% 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

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

Features

Advanced designHSDPA 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!

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

B09

BBUB

B06C

B03C/B03R

B09A B01C

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

R5

HSDPA

Phase I

R5

HSDPA

Phase II

Serialized Node B

hardware support

HSDPA

Completed HSDPA

trial system

HSDPA commercial

phase I

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: 2.2240320

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 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.

zte-hsdpa

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