Comparison 4T8R With 2T2R

秘密 Proprietary Confidential▲

Comparison 4T8R with 2T2R

TDD Planning & System Depart.

Derek Han


Content

Product Description

Compare 4T8R with 2T2R

BBU

RRU

Performance Analysis

Suggestion & Commercial 4T8R Applications

CSN

MS

MS

B8200

Others

RRU

R9110

MS

MS

B8200

R9110

R9110

AGW

R1 OBSAI R3

MSMS

R6

The Position of ZXSDR B8200 + ZXMBW R9110

Features

ZXSDR B8200 (SDR-based BBU)

General Characteristics Main Features

Installation Modes

Application Scenario

Dense Urban/Urban Area Suburban/Rural Area Hotspot

Height: 2U

Width: 19’’

Weight: < 10Kg

Operation Temperature:

-25°C to +55°C

Relative Humidity:

5% ~ 95%

Power Supply: -48V DC

Power Consumption:

S111 < 95W (10MHz), low

power consumption

SDR design, support of multiple band & multiple systems

Max. 12 CS (12*10MHz) capacity

10/7/5 MHz flexible configuration

Support of multicarrier and load balance

MIMO A/B, UL virtual MIMO, BF, MIMO+BF

Hardware supports UL 64QAM

PUSC Segment, PUSC all subchannel, Band AMC

Support of FFR and CDD

FE/GE interface, OBSAI interface

Stack up for capacity extension

Key unit 1+1 redundancy

Standard 19’’ rack

Indoor simple rack

Outdoor cabinet

Mounted on the wall/Pole/Tower

Features

ZXMBW R9110 Overview

General Characteristics Main Features

Installation Modes

Application Scenario

Dense Urban/Urban Area Suburban/Rural Area Hotspot

SDR RRU (WiMAX or LTE)

2*4/2*2 MIMO, 4*8 BF

Support of 2.5/2.3/3.5GHz

4*40dBm(2.3&2.5G)

10/7/5 MHz flexible configuration

Convection cooling, no acoustic noise

OBSAI /OBRI interface

IP65 protection Level

Anti-theft design

Mounted on the wall

Mounted on the pole/tower

Dimension:

320×470×147mm(2.3/2.5G)

Weight:

< 19Kg(2.3/3.5G)

Operation Temperature:

-40°C to +55°C

Relative Humidity: 5% ~ 95%

Power Supply: -48V DC

Power Consumption:

270W (4T8R)

4T8R Features

BS Antenna Patten: 4T8R means 4 branch antenna

transmitting and 8 branch antenna receiving.

4T8R can solve the UL limitation problems. The

major problem in both mobile and fixed scenarios is

UL traffic limitation.

Compare to 4T4R, 4T8R has at least 2.8dB gain,

which means 15-25% enhancement in coverage

area or 15-25% reduce in BS number.

4T8R Features

4T8R which exploits the diversity gain and capacity

improvement brought by MIMO & MRC, will provide

much better performance.

(MRC Maximum Ratio Combining)

2TxMIMO+4Tx CDD + 8Rx MRC is recommended

for BERCA


Content

Product Description


BBU

RRU



Internal Only▲

B9100 & B8200 Outer View

Slot Assignment on the B9100

MPXM

TFM C

S

I

M

W

M

P

MTFM

Air Inlet

Air Outlet

7U

FEMM

P

M

P

M

W

M

P

M

W

M

P

M

W

B

P

M

C

S

I

M

W

B

P

M

W

B

P

M

W

B

P

M

W

M

P

MPM

(Optional)

PM

SASE / NIS

(Optional)CC

CC(Optional) XBP

XBP

XBPF

A

6HP

6HP

4HP 4HP

4HP

4HP

4HP

Slot Assignment on the B8200

Internal Only▲

Comparison: B8200 vs B9100

Technical Specifications

ITEMS B8200 B9100Dimensions (H*W*D) （2U）

88.4mm×482.6mm×1

97mm

（7U）308 mm x 483 mm x

197 mm

Weight <10Kg <19Kg

Internal Only▲

BBU Installation

In a transmission rackIn the exiting BTS rack

On the wall

Easy capacity extension & evolution

Small size

Easy installation & maintenance

Smooth evolution to LTE

High integration level

Flexible, Economic and Fast Deployment

BBU RRU

Fiber Transmission

GPS

Small footprint

Flexible deployment

Low TCO


Content

Product Description


BBU

RRU



R9100 Outer View

R9110 Outer View

Comparison: R9110 vs. R9100

ITEMS R9110 R9100

Dimensions (H*W*D) 320 mm (H) x 470 mm

(W) x 147 mm (D)

370 mm (H) x 320 mm

(W) x 160 mm (D).

Weight <19Kg <17Kg


Comparison: Antenna

ITEMS 4T8R 2T4R 2T2R

Dimensions

(H*W*D)

1350 mm (H) x

320 mm (W) x

111mm (D)

1186 mm (H) x

312 mm (W) x

73 mm (D)

1186mm (H) x

158mm (W) x

75 mm (D).

Weight <16.5Kg 10Kg 5Kg

Small size and light weight,

allowing one person to carry

Easy installation & maintenance

Zero footprint, saving space and

reducing CAPEX

Fast & flexible deployment

Economic, Flexible and Fast Deployment

17

On pole/tower On the wall Easy to carry

High efficiency PA helps to reduce

power consumption

High reliability, reduce TCO

High environmental adaptability

High environmental protection

DesertFreezing StormRain Forest


Content

Product Description


BBU

RRU



ZTE R9110 MIMO+CDD

BS

S1

S1,Delay

S2

S2,Delay

MSBS

{S1,-S2*}

{S1,-S2*,Delay}

{S2, S1*}

{S2, S1*,Delay}

MS

STC+CDD & SM+CDD

2.3/2.5G Link-budget result using ITU PB 3km/h model:

Sources: ZTE WiMAX Network Planning Team

UL traffic limitation has been an Universal problem due to much lower transmission power and antenna gain at the terminal side

PC cards have worse UL Traffic limitation than indoor CPE;

2Tx*4Rx/4Tx*4Rx has same coverage due to UL Traffic limitation.

Asymmetric configuration is an effective to improve uplink and greatly enlarge coverage.

Unbalance Between Downlink & Uplink Bottlenecks Cell

Coverage

Scenario BandwidthAntenna

Configuration

Link Budget MAPL

DL Traffic UL Traffic DL MAP Limited Link

Fixed Indoor(Indoor CPE)

10 MHz

2T2R 158.6 155.8 158.3 UL Traffic

2T4R 158.6 158.8 158.3 Balanced

4T4R 162.7 158.8 162.1 UL Traffic

4T8R 162.7 161.6 162.1 UL Traffic

Fixed Outdoor(Outdoor CPE)

10 MHz

2T2R 161.6 158.8 161.3 UL Traffic

2T4R 161.6 161.8 161.3 Balanced

4T4R 165.7 161.8 165.1 UL Traffic

4T8R 165.7 164.6 165.1 UL Traffic

2.3/2.5G Link-budget result using ITU PB 3km/h model:

2*4/4*4 has same coverage due to UL Traffic limitation Enable balance between UL *DL

Decrease interference at cell edge comparing with 4*4

4*8 has 2.8 dB gain than 4*4 result in about 15-25% sites saving

So 4T8R is recommended for BERCA

4*4

2*4

UL Radius DL Radius

Interference

UL Radius DL Radius

DL Radius

4*4 cell radius

2*4 cell radius

4*8 cell radius4*8

UL Radius

Unbalance Between Downlink & Uplink Bottlenecks Cell

Coverage


Content

Product Description


BBU

RRU



Commercial 4T8R Applications

Etihad Atheeb Telecom, Saudi Arabia. June,2009,

P1, Malaysia, ready for commercial.

Attractive Saved TCO Advantages

2T2R TCO Breakdown

21%

14%65%

CAPEX EQP

CAPEX Service

OPEX 3Y

4T8R TCO Breakdown

29%

14%

57%

CAPEX EQP

CAPEX Service

OPEX 3Y

TCO COMPARISON

$0

$1,000,000

$2,000,000

$3,000,000

$4,000,000

$5,000,000

$6,000,000

$7,000,000

$8,000,000

CAPEX EQP CAPEX Service OPEX 3Y

2T2R 100 sites 4T8R 80 sites

ZTE suggestion for BERCA

ZTE proposed the most advanced and comprehensive up to

date End to End WiMAX, IMS and BSS solution for BERCA.

10MHz PUSC All Subchannels 1/3/3 : 3 RRU per 1 site

2TxMIMO+4Tx CDD + 8Rx MRC

Compare to 2T4R, 4T8R enhances 15-25% coverage area

,which means 15-25% reduce in BS number.


Comparison 4T8R With 2T2R

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