Comparison 4T8R With 2T2R

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Comparison 4T8R with 2T2R TDD Planning & System Depart.

Derek Han

秘密 Proprietary Confidential▲

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Product Description Compare 4T8R with 2T2R  BBU  RRU Performance Analysis Suggestion & Commercial 4T8R Applications

The Position of ZXSDR B8200 + ZXMBW R9110

Others RRU MS MS B8200 R9110

CSN

AGW MS MS R9110 B8200 MS MS R9110

R1

OBSAI

R6

R3

ZXSDR B8200 (SDR-based BBU) General Characteristics 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 

Main Features  SDR design, supportFeatures 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

Installation Modes Standard 19’’ rack  Indoor simple rack  Outdoor cabinet  Mounted on the wall/Pole/Tower

Application Scenario

Dense Urban/Urban Area

Suburban/Rural Area

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Hotspot

ZXMBW R9110 Overview General Characteristics 

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)

Main Features Features 

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

Installation Modes Mounted on the wall  Mounted on the pole/tower 

Application Scenario

Dense Urban/Urban Area Suburban/Rural Area

Hotspot

4T8R Features 

BS Antenna Patten: 4T8R means 4 branch antenna transmitting and 8 branch antenna receiving.

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4T8R can solve the UL limitation problems. The major problem in both mobile and fixed scenarios is UL traffic limitation.

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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)

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

秘密 Proprietary Confidential▲

Content 

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Product Description Compare 4T8R with 2T2R  BBU  RRU Performance Analysis Suggestion & Commercial 4T8R Applications

Internal Only▲

B9100 & B8200 Outer View

Slot Assignment on the B9100 Air Outlet T F M 7U

T F M

W M P M

Slot Assignment on the B8200

FEMM W M P M

W M P M

W B P M

C S I M

C S I M

W B P M

W B P M

W B P M

W M P M

P M

MPXM

P M

6HP

XBP 6HP 4HP

Air Inlet

PM (Optional)

SA

4HP

XBP

PM

CC(Optional)

XBP

CC

SE / NIS (Optional)

F A

4HP 4HP 4HP

Internal Only▲

Comparison: B8200 vs B9100 

Technical Specifications

ITEMS

B8200

B9100

Dimensions (H*W*D)

（2U） 88.4mm×482.6mm×1 97mm

（7U） 308 mm x 483 mm x 197 mm

Weight