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ZXSDR BS8900A Product
Description
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ZXSDR BS8900A Product Description
Version Date Author Approved By Remarks
V1.00 2011-11-07 ZTE Not open to the Third Party
2011 ZTE Corporation. All rights reserved.ZTE CONFIDENTIAL:This document contains proprietary information of ZTE and is not to be
disclosed or used without the prior written permission of ZTE.Due to update and improvement of ZTE products and technologies, information in this documentis subjected to change without notice.
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ZTE Confidential Proprietary 2011 ZTE Corporation. All rights reserved. III
TABLE OF CONTENTS
ZXSDR BS8900A Product Description ............................................................................ II
TABLE OF CONTENTS .................................................................................................... III
FIGURES IV
TABLES IV
1
Product Overview ........................................................................................... 1
1.1
Introduction ....................................................................................................... 1
1.2
Benefits ............................................................................................................ 1
1.3
Application Scenarios ....................................................................................... 3
2
Product Architecture ...................................................................................... 3
2.1
Physical Structure ............................................................................................. 3
2.2
Hardware Architecture ...................................................................................... 4
2.2.1
Baseband Unit .................................................................................................. 5
2.2.2
Radio Unit ....................................................................................................... 14
2.3
Software Architecture ..................................................................................... 17
2.4
Functionality ................................................................................................... 18
2.4.1
Basic Functions .............................................................................................. 18
2.4.2
Service Functions ........................................................................................... 19
3
Technical Specifications .............................................................................. 19
3.1
Physical Indices .............................................................................................. 19
3.2
Performance Indices ....................................................................................... 20
3.2.1
Operation Frequency Band ............................................................................. 20
3.2.2
Receiver sensitivity ......................................................................................... 21
3.2.3
TOC Output Power ......................................................................................... 21
3.3
Power Indices ................................................................................................. 21
3.3.1
Power Supply ................................................................................................. 21
3.3.2
Power Consumption ....................................................................................... 21
3.4
Interface Indices ............................................................................................. 22
3.5
Environment Indices ....................................................................................... 23
3.6
Electromagnetic Compatibility Indices ............................................................ 23
3.7
Reliability Indices ............................................................................................ 24
4
Abbreviation .................................................................................................. 24
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FIGURES
Figure 1-1 BS8900A Appearance ......................................................................................... 1
Figure 1-2 BS8900A Application Scenario ........................................................................... 3
Figure 2-1 BS8900A Physical Architecture (Complete Style) ............................................... 4
Figure 2-2 BS8900A Hardware Structure ............................................................................. 4
Figure 2-3 Baseband Unit of BS8900A ................................................................................. 5
Figure 2-4 CC Panel ............................................................................................................ 5
Figure 2-5 UBPG Panel........................................................................................................ 7
Figure 2-6 BPK Panel .......................................................................................................... 8
Figure 2-7 FS Panel ............................................................................................................. 9
Figure 2-8 SA Panel ............................................................................................................. 9
Figure 2-9 UES Panel ........................................................................................................ 11
Figure 2-10 TMA Panel ...................................................................................................... 11
Figure 2-11 PM Panel ........................................................................................................ 12
Figure 2-12 FAM Panel ...................................................................................................... 13
Figure 2-13 Radio Unit RSU40/RSU60E of BS8900A ........................................................ 14
Figure 2-14 Radio Unit RSU82 of BS8900A ....................................................................... 16
Figure 2-15 BS8900A Software Structure .......................................................................... 17
TABLES
Table 2-1 Board List of Baseband Unit ................................................................................. 5
Table 2-2 CC Panel Interfaces ............................................................................................. 6
Table 2-3 FS Panel Interfaces .............................................................................................. 9
Table 2-4 SA Panel Interfaces ........................................................................................... 10
Table 2-5 SE Panel ............................................................................................................ 10
Table 2-6 SE Panel Interfaces ........................................................................................... 10
Table 2-7 UES Panel Interface ........................................................................................... 11
Table 2-8 TAM Panel Interface ........................................................................................... 12
Table 2-9 PM Panel Interfaces ........................................................................................... 12
Table 2-10 RSU40/RSU60E Interfaces Description ............................................................ 14
Table 2-11 RSU82 Interfaces Description .......................................................................... 16
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Table 2-12 RF Module Brief List ......................................................................................... 17
Table 3-1 BS8900A Physical Indices.................................................................................. 19
Table 3-2 Different Combination of BS8900A ..................................................................... 20
Table 3-3 BS8900A Operation Frequency Band ................................................................ 20
Table 3-4 BS8900A Receiver Sensitivity ............................................................................ 21
Table 3-5 BS8900A Output Power ..................................................................................... 21
Table 3-6 BS8900A Power Supply Indices ......................................................................... 21
Table 3-7 BS8900A GSM Configuration Power Consumption List (Unit: W, -48V DC) ....... 22
Table 3-8 BS8900A UMTS Configuration Power Consumption (Unit: W, -48V DC,20W/Carrier) ......................................................................................................................... 22
Table 3-9 BS8900A G/U Dual-mode Configuration Power Consumption (Unit: W, -48V DC,
20W/TRX, 20W/Carrier) ........................................................................................................ 22
Table 3-10 BS8900A Interface Indices ............................................................................... 22
Table 3-11 BS8900A Working Environment Indices ........................................................... 23
Table 3-12 BS8900A EMC Indices ..................................................................................... 23
Table 3-13 BS8900A Reliability Indices (RSU82 Configured, DC Power Supply) ............... 24
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1 Product Overview
1.1 Introduction
With the multi-mode era coming, ZTE, who is dedicated to provide comprehensive
network solutions and deliver the future-oriented quality network for the operators,
developed the ground breaking SDR unified platform with the essential feature to
support multi-mode and multi-band radio access.
Based on this innovative SDR platform, ZTE promotes series product to satisfy different
scenario requirements, including Indoor Macro, Outdoor Macro, Distributed, Outdoor
Micro, Mini BTS.
The SDR based series product aims to design a unified network which can bring
seamless experience to operators. In GSM, UMTS or mixed mode, it enables operators
to make significant CAPEX and OPEX savings because they only need to deploy a uni
Radio Access Network, compared to the costs involved with independent GSM and
UMTS networks.
ZXSDR BS8900A is one outdoor macro BTS, providing all in one solution for power
supply, battery, and transmission integration. It offers GSM/UMTS dual-mode networking
capability and provides a future-proof solution for smooth evolution to Enhanced EDGE,
HSPA+ and LTE. BS8900As appearance is shown in Figure 1-1. In the followingchapters, a general description will be given to ZXSDR BS8900A (hereafter referred as
BS8900A).
Figure 1-1 BS8900A Appearance
1.2 Benefits
Easy Installation, Fast Deployment
Complete Style Standard Style Compact Style
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Four basic cabinets of BS8900A can be combined flexibly to cater for different scenarios.
Auxiliary equipments, including transmission, battery and power supply, are integrated
into the cabinet to provide a full functional outdoor base station solution. Front wiring
design enables installation against wall and convenient maintenance. Least footprint
requirement relieves the operator from bothering by the site acquisition problem.
Large Capacity, Easy Expansion
ZXSDR BS8900A can accommodate several kinds of multi-carrier RSUs, including 1T2R,
2T4R RF modules. The 2T4R Radio Unit (RSU82) has the capability to support 2*4
GSM TRXs or 2*2 UMTS carriers. Expansion is achieved through software configuration.
Flexible GSM/UMTS Dual Mode Networking
ZXSDR BS8900A meets GSM/UMTS dual mode networking requirements in different
scenarios. It supports GSM 900+GSM 1800 dual band networking, and UMTS 900 can
be realized in the same hardware with corresponding software upgrade. When GSM are
configured initially, UMTS 2100 can be supported by adding new RF unit.
Smooth Evolution
ZXSDR BS8900A software and hardware support full-feature EDGE and UMTS/HSPA
and satisfy operators future needs for data services. With software upgrade it is easy to
realize the evolution to EDGE+ and HSPA+. Even in the LTE phase, through minimal
change, ZXSDR BS8900A can support LTE functionality.
Low Power Consumption
The PA efficiency achieves up to 50% with ZTE patent Doherty + DPD + D-PT
technology. Power consumption can be greatly decreased together with several energy-
saving features.
IP RAN
ZXSDR BS8900A fully supports IP RAN and provides GE/FE or IPoverE1 for Abis/Iub
interfaces.
Adaptable to Transmission Networks
BS8900A provides E1/T1, and GE/FE interfaces for Abis/Iub connection and supports
various transmission networking schemes such as SDH network, IP networking and
splitting transmission.
Adaptable to Tough Environments
Outdoor Macro BTS BS8900A adopts hermetic rack. It is water proof, dust proof, EMC
compatible to suit the outdoor application scenarios. BS8900A provides IP55 protection
capability, -40~55C working temperature, and C class lightning protection. BS8900A
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can provide a fast deployment, low cost and equipment room free solution in tough
environments.
1.3 Application Scenarios
BS8900A develops a new solution for GSM/UMTS integrated network and network
evolution. BS8900A can be applied in dense urban, urban, suburban, rural area,
highway or outdoor environment. Furthermore it can fully meet operators requirements
in different stages and scenarios. BS8900A can be some combination of 4 basic
cabinets and be a flexible and customized solution for outdoor application scenario. With
IP55 protection capability and -40~55C working temperature, BS8900A can be used in
tough environments.Figure 1-2 shows the application scenario of BS8900A.
Figure 1-2 BS8900A Application Scenario
2 Product Architecture
2.1 Physical StructureBS8900A adopts standard 19 inches rack structure. It is composed of outdoor baseband
cabinet BC8910A, outdoor radio cabinet RC8910A, outdoor radio cabinet RC8911A, and
battery cabinet PC8910A. Typical configuration dimension of BS8900A is 1600mm *
600mm * 600mm (H*W*D). With the 200mm bottom base and 16mm top cover, the total
height reaches 1816mm.
Outdoor baseband cabinet is also called site support cabinet, including power
distribution shelf, fan shelf, baseband unit shelf, ventilation shelf, and additional space
reserved for transmission or other equipments. Outdoor RF cabinets are used for
containing radio unit, maximum supporting 6 RSUs. Battery cabinet supports maximum
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2150AH battery. BS8900A complete style is shown in the following figure, consisting of
one BC8910A, one RC8910A and one PC8910A. BS8900A single rack supports up to
48 TRXs GSM or 30 CS UMTS.
Figure 2-1 BS8900A Physical Architecture (Complete Style)
RC8910A
BC8910A
PC8910A
2.2 Hardware Architecture
BS8900A consists of two main parts: baseband unit and radio unit as shown in the
following figure.
Figure 2-2 BS8900A Hardware Structure
Baseband Unit
Radio UnitSA/SE
CC
BasebandProcessing
FSRSU
E1
Clock
Data
Control Signaling
CPRI
Antenna
RF Unit
GE/FE
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2.2.1 Baseband Unit
Baseband unit in BS8900A is responsible for processing the baseband signals.
Figure 2-3 Baseband Unit of BS8900A
The Baseband unit consists of control & clock board, fabric switch board, basebandprocessing board, site alarm board (optional), site alarm extension board (optional),
universal Ethernet switch (optional), Tower mounted Amplifier control Module (optional),
power module, and fan module.
Table 2-1 Board List of Baseband Unit
Board Name Function Description
CC Control & Clock Board
BasebandProcessing
Unit
UBPG Universal Baseband Processing board for GSM
BPK Base band Processing type K for UMTS
FS Fabric Switch Board
InterfaceBoard
SA Site Alarm Board
SE Site alarm Extension Board
UES Universal Ethernet Switch Board
TAM Tower mounted Amplifier control Module
PM Power Module
FAM FAN Module
2.2.1.1 Control & Clock Board (CC)
CC is control & clock board, used for control and management of baseband unit,
providing Ethernet and system clock. The CC panel is illustrated in the following figure.
Figure 2-4 CC Panel
Baseband Processin BoardFSPM
SA
FAM
CC
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Description of CC panel interfaces is shown in the following table.
Table 2-2 CC Panel Interfaces
Interface Name Description
ETH0Ethernet interface between BS8900A and RNC, adapting interfaceof 10M/100M/1000M.
ETH1Ethernet interface used for cascading, debugging or localmaintenance, adapting interface of 10M/100M/1000M.
TX/RXUsed for Ethernet interface connection between BTS andBSC/RNC. This interface is 100M/1000M Ethernet opticalinterface.
EXTExternal communication port, connected to external receiver,
Mainly 485 and PP1S+/2M+ interfaces.
REF External connection GPS antenna, SMA(F) interface
Control & clock board functions are as follows:
Ethernet switching function, implementing data switching for service and control
flow within the system
Iub interface protocol processing
Monitoring, controlling and maintaining of the base station system, providing LMT
interface
Managing software versions of boards and programmable components, and
supporting local and remote software upgrade
Supervising the running status of each board within the system
Synchronizing with various external reference clocks, including Abis/Iub interface
recovery clock, the GPS clock, Synchronous Ethernet clock and the clock provided
by BITS. CC can select one according to the actual configuration.
Generating and delivering the clock signal demanded by each part
Providing GPS receiver interface and managing the GPS receiver
Providing a real-time clock for system operation and maintenance. The real-time
clock can be calibrated.
Board power interface (-48V, -48V ground, protection ground, digital ground) with
reverse connection protection function
Reading various hardware management identifiers in the system, including the rack
number, backplane type number, slot number, board function type, board version,
and board function configuration mark
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Supporting primary/slave switchover
2.2.1.2 Baseband Processing Unit
2.2.1.2.1 Baseband Processing Unit for GSM
UBPG
UBPG is the GSM baseband processing board. It processes the physical layer protocol
and frame protocol specified by 3GPP. UBPG panel is illustrated in the following figure.
Figure 2-5 UBPG Panel
UBPG has the following functions:
Achieving rate adaptation, channel coding, interleaving, encryption, generate
TDMA shock burst, GMSK/8PSK modulation, IQ baseband digital signals output
Achieving uplink IQ data receiving, receiver diversity combiner, digital demodulation(GMSK&8PSK, equilibrium), decryption, deinterleaving, demodulator, rate
adaptation, GE Ethernet interface transmit it to CC board for processing
Radio link synchronization, transmission frame processing
Measuring parameters required in power control and handover
Diversified transmission and receiving
Communicating with CC board via Ethernet interface
Reading all the hardware management identifiers, including the backplane type
number, slot number, board function type, board version, board function
configuration identifier, and the CPU serial number
2.2.1.2.2 Baseband Processing Unit for UMTS
BPK
BPK is the UMTS baseband processing board. It processes the physical layer protocol
and frame protocol specified by 3GPP. BPK panel is illustrated in the following figure.
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Figure 2-6 BPK Panel
It provides the following functions:
Achieving downlink baseband signal processing, including downlink data coding,
multiplexing, rate adaptation, channel mapping, spread spectrum and
scrambling power regulation and channel compositing
Achieving uplink baseband signal processing, including uplink data RAKE receiving,
demodulator, transmitting the data to lub interface for processing
Downlink data coding/multiplexing, rate matching, channel mapping, spreading and
scrambling, power adjusting, and channel compositing
Uplink signal RAKE receiving and channel decoding
Radio link synchronization and Frame processing
Measuring parameters required in power control and handover
Softer handover and carrier diversity
Communicating with the CC board via the Ethernet interface
Reading all the hardware management identifiers, including the backplane type
number, slot number, board function type, board version, board function
configuration identifier, and the CPU serial number
Performing UL 16QAM, and the peak rate throughput can reach 11.5Mbps
Supporting A-RAKE receiving and UL interface cancellation
2.2.1.3 Fabric Switch Board (FS)
FS is fabric switch board which provides baseband optical interface between BBU and
RRU and processes the IQ signal. FS panel is illustrated in the following figure.
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Figure 2-7 FS Panel
Description of FS panel interfaces is shown in the following table.
Table 2-3 FS Panel Interfaces
Interface Name Description
TX0 RX0 ~ TX5 RX56 pairs optical interfaces, connected toRRU
The FS has the following functions:
Receive the signal from the rear board in the downlink and retrieve the data and
timing.
Multiplex the received data and retrieve I/Q signal
I/Q mapping in the downlink and multiplex I/Q signal to the optical signals.
Receive the I/Q in uplink and demultiplex/mapping into I/Q signal
The multiplexed I/Q signal transmit to BP
Exchange CPU interface signaling through HDLC interface with RF module
MicroTCA protocol based module management function
2.2.1.4 Interface Board
1. Site Alarm Board (SA)
SA/SE is a site alarm board, illustrated in the following figure.
Figure 2-8 SA Panel
Description of SA panel interface is shown in the following table.
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Table 2-4 SA Panel Interfaces
Interface Name Description
- 8 E1/T1 interfaces,
1 RS485,1RS232 interface,
6+2 dry contacts (6 input interfaces, 2 bidirectional interfaces)
The SA has the following functions:
Providing E1/T1 transmission interfaces for Iub.
Providing site alarm monitoring interfaces.
Providing FAM's alarm and rate control.
Being responsible for the signal monitoring and interface lightning protection of its
shelf.
2. Site alarm Extension Board (SE)
SE is site alarm extension board, and shares the bottom-right slot with Baseband
processing board. It is used to extend the port number if SA cannot fulfill the
requirements. The SE panel is illustrated in the following figure.
Table 2-5 SE Panel
Description of SE panel interfaces is shown in the following table.
Table 2-6 SE Panel Interfaces
Interface Name Description
- 8 E1/T1 interfaces,
1 RS485,
1RS232 interface,
6+2 dry contacts (6 input interfaces, 2 bidirectional interfaces)
SE board can provide the following functions:
Providing E1/T1 transmission interfaces for Iub.
Providing site alarm monitoring interfaces.
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2.2.1.5 Universal Ethernet Switch Board (UES)
UES is used for synchronized Ethernet and the panel is illustrated in the following figure.
Figure 2-9 UES Panel
Description of UES panel interfaces is shown in the table below:
Table 2-7 UES Panel Interface
Interface Name Description
X1X2 The electrical interfaces for cascaded connection.
X3/ULPINK A compatible electrical interface for both cascaded connectionand uplink connection for link aggregation.
UPLINK An electrical or optical interface.
X4/UPLINK A compatible optical interface for both cascaded connection anduplink connection for link aggregation.
UES provides the following functions:
6 Ethernet interfaces, including 4 electrical interfaces and 2 optical interfaces
Supporting L2 Ethernet switch
Supporting Synchronous Ethernet clock
2.2.1.6 Tower mounted Amplifier control Module (TAM)
TAM is used for tower mounted amplifier control when TMA is needed. Panel of TAM is
shown as following figure.
Figure 2-10 TMA Panel
Description of the Interfaces on the TAM panel is shown in the table below.
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Table 2-8 TAM Panel Interface
Interface Name Description
TA0 DC output voltage channel 0
TA1 DC output voltage channel 1
TA2 DC output voltage channel 2
TA3 DC output voltage channel 3
TA4 DC output voltage channel 4
TA5 DC output voltage channel 5
The board provides the following functions:
Working status detection of tower amplifier and reporting alarm signals to CC board
Providing power on and off for tower amplifier with +28V, +12V or +13V power
supply
Realizing the communication with CC board
Implementing conversion, protection and filtering of power supply
Providing anti-lightning for power supply circuit
Implementing software remote downloading and current threshold setting
2.2.1.7 Power Module (PM)
PM is the power module, illustrated in the following figure.
Figure 2-11 PM Panel
Description of PM panel interface is shown in the following table.
Table 2-9 PM Panel Interfaces
Interface Name Description
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MONDebugging interface, RS232interface
-48V/-48VRTN -48V input
ON/OFF Power switch, turning on/off 12V powerto/from BBU
The PM has the following functions:
16 internal interfaces for +12 V load power;
16 internal interfaces for +3.3 V management power;
EMMC management;
Measurement and protection of input over-voltage/under-voltage;
Output over-current protection and load power management.
2.2.1.8 Fan Array Module (FAM)
FAM is fan array module which panel is illustrated in the following figure.
Figure 2-12 FAM Panel
The FAM main functions are as follows:
System temperature monitor and control;
Monitor, control, and report of fan state.
2.2.1.9 AC/DC Power System
The power system of BC8910A contains 4*30A AC/DC rectifiers. It is 5U in height. Its
configuration depends on the load and the backup battery capacity.
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2.2.2 Radio Unit
2.2.2.1 RSU40
RSU40 is UMTS multi-carrier radio unit, working on 2100M/AWS. RSU40 supports
maximum 4 carriers, and the output power is 60W.
RSU40 module consists of MCPA (multi-carrier power module) module, transceiver
module, and duplex filter LNA. There are one TX/RX port and one RX port for
connecting antennas.
2.2.2.2 RSU60E
RSU60E is a multi-carrier RF module, working on 850M/900M/1800M/1900M. It can beconfigured as GSM only, UMTS only or dual mode module. RSU60E maximum supports
6 TRXs in GSM mode. The maximum of 80W TOC output power can be provided. In
dual mode, RSU60E maximum supports 4 GSM TRXs and 1 UMTS carrier or 2 GSM
TRXs and 2 UMTS carriers.
RSU60E module consists of MCPA module, transceiver module, and duplex filter LNA.
There are one TX/RX port and one RX port for connecting antennas.
The appearance of RSU40 is nearly the same as that of RSU60E, except the label, as
shown in the following figure.
Figure 2-13 Radio Unit RSU40/RSU60E of BS8900A
10
8
6
7
3
1
9
2 5
4
The interfaces of RSU40 are the same as those of RSU60E, as described in the
following table.
Table 2-10 RSU40/RSU60E Interfaces Description
S.N. Label Interface Type/Connector
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1 ANT2(RX)Interface to receive diversityRF cable
50 DIN type connector
2 ANT1(TX/RX)Interface to transmit/receivemain diversity RF cable
50 DIN type connector
3 RXinFrequency extensioninterface
SMA connector
4 RXoutFrequency extensioninterface
SMA connector
5 TX1 RX1BBU and RSU Interface/RSU cascading interface
LC-type optical interface (IEC874)
6 TX2 RX2BBU and RSU Interface/RSU cascading interface
LC-type optical interface (IEC874)
7 DBGDebugging networkinterface
RJ45 socket
8 MON External equipmentinterface
DB15 socket
9 AISG AISG interface B9 socket
10 POWER Power supply interface -48V DC input
2.2.2.3 RSU82
RSU82 is a multi-carrier and multi-mode RF module, working on 900M/1800M/2100M.
One RSU82 can process 2-way transmitting and 4-way receiving, thus supporting 2
sectors in GSM/UMTS or 1 sector with 2*2 MIMO in HSPA+ mode. RSU82 can be
configured as GSM only, UMTS only or mixed mode. In GSM mode, RSU82 maximumsupports 2*4 TRXs. The maximum of TOC output power reaches up to 2*80W. In UMTS
mode, it maximum supports 2*20MHz with TOC output power 2*80W on 900M or 2*60W
on 2100M. In dual mode, RSU82 maximum supports 2*(4 TRXs + 1 carrier) or 2*(2
TRXs + 2 carriers).
RSU82 module consists of MCPA module, transceiver module, and duplex filter LNA.
There are two TX/RX port and two RX port for connecting antennas.
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Figure 2-14 Radio Unit RSU82 of BS8900A
2
1
3
4
10
8
6
7
9
5
The interfaces of RSU82 are described in the following table.
Table 2-11 RSU82 Interfaces Description
S.N. Label Interface Type/Connector
1 ANT2(RX)Interface to receivediversity RF cable
50 DIN type connector
2 ANT1(TX/RX)Interface totransmit/receive maindiversity RF cable
50 DIN type connector
3 ANT3(TR/RX)
Interface to
transmit/receive maindiversity RF cable
50 DIN type connector
4 ANT4(RX)Interface to receivediversity RF cable
50 DIN type connector
5 TX1 RX1BBU and RRUInterface /RRUcascading interface
LC-mode optical interface (IEC 874)
6 TX2 RX2BBU and RRUInterface /RRUcascading interface
LC-mode optical interface (IEC 874)
7 DBGDebugging network
interface
RJ45 socket
8 MONExternal equipmentinterface
DB15 socket
9 AISG AISG interface B9 socket
10 POWER Power supply interface -48V DC input
All the above RF modules can be inserted into BS8900A for different applications. The
following table gives a brief summary of all the RF modules.
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Table 2-12 RF Module Brief List
Radio Tx/Rx Frequency (Hz) Mode TOC
RSU40 1T2R
2100M
U 60WAWS
RSU60E 1T2R
850M G/U
80W900M G/U
1800M G
1900M G/U
RSU82 2T4R
900M G/U2*80W
1800M G
2100M U 2*60W
2.3 Software Architecture
The software system of BS8900A can be divided into operating support layer and
application layer.
Figure 2-15 BS8900A Software Structure
The operating support layer provides the functions of OSS, while OAM, DBS, BRS,
BRACS, and SCS serve different BTS modes.
OSS
GSM Function UMTS Function
NOP
OMC-B
SCS OAM DBS BRACSBRS
VOS
Sche. Timer Moni. CPP Excep Mem BBX File DBG
Hardware (BSP)
VxWorks
LMT
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OAM (Operating and Maintenance) is to provide the configuration, alarm and
performance measurement function.
DBS (Database Sub-system) is the database system.
BRS (Bearer Sub-system) is for protocol stack processing.
BRACS (Bearer Access Control Sub-system) is to control the access to bear layer.
SCS (System Control Sub-system) is to control the power supplying and
active/standby switching.
OSS (Operation Support Sub-system) is the support layer in this entire framework, which
is a hardware platform for running software and provides basic functions like scheduling,
timer, memory management, communication, sequencing control, monitoring, alarming
and logging.
BSP (Board Support Package) supports the data routing to the GSM, UMTS and public
parts in the application layer.
2.4 Functionality
2.4.1 Basic Functions
Being compliant with 3GPP standards, including GSM Phase I/Phase II Phase II plus, aswell as UMTS R99/R4/R5/R6/R7/R8/R9, ZXSDR BS8900A supports G/U 900, G/U 850,
G 1800 and G/U 1900, UMTS 2100, even mixed installation of boards with different
frequencies in the same cabinet.
With Um/Uu, Abis/Iub and O&M interfaces, ZXSDR BS8900A accomplishes the
following basic functions
With Um/Uu interface, the base station accomplishes UE access and radio link
transmission including RF processing, channel coding and decoding, channel
multiplexing and de-multiplexing, measuring and reporting, power control, transmit
diversity, receiving diversity, calibration and synchronization.
with Abis/Iub interface, the base station connects with BSC/RNC and accomplishes
the following functions including cell management, reporting BS measurement
information, broadcasting system Information, implementing access control from
BSC/RNC, mobility management, radio resource management and controlling, FP
processing and ATM transmission management.
With operating and maintenance interface, the base station provides system
management functions including configuration management, alarm management,
status checking and system monitoring.
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2.4.2 Service Functions
Main service functions of ZXSDR BS8900A are listed as follows:
GSM voice service (FR/EFR/HR/AMR/AMR-WB), GPRS, EDGE, EGPRS2-A of E-
EDGE
UMTS R99 service, HSPA (DL 14.4Mbps/UL 5.76Mbps/), HSPA+ (DL
43.2Mbps/UL 11.5Mbps)
MBMS service, including broadcast and multicast functions (PtP & PtM)
Supports 64QAM, MIMO, DC, DC + 64QAM, MIMO + 64QAM for DL
Supports 16QAM, A-RAKE technology, interference cancellation for UL
Advanced energy-saving features, such as dynamic power sharing, intelligent Cell
shutdown
Supports BSS local switch, and the voice data frame will switch in BSS and will not
go to core network
Several measures to make cell range extended up to 240 Km
Supports basic interworking between G/U and LTE network
Support full IP networking
3 Technical Specifications
3.1 Physical Indices
Table 3-1 BS8900A Physical Indices
Item BC8910A RC8910A RC8911A PC8910A
Appearance
Dimension(H*W*D)
( mm*mm*mm)800*600*600 800*600*600 800*600*600 800*600*600
Weight of fullconfigurationwithout battery
82Kg
127Kg(RSU40,RSU60E)
139Kg (RSU82)
93Kg(RSU40/RSU60E)99Kg (RSU82)
47Kg
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Weight of fullconfiguration withbattery
N/A N/A277Kg(RSU40/RSU60E)283 Kg (RSU82)
415Kg
RF module N/A 6 RSUs 3*RSUs N/A
Battery N/A N/A 150AH 2*150AH
Note: 1. BS8900A has totally 4 basic cabinets. 2. The basic cabinets can be flexibly
combined together according to the actual application scenarios.
Table 3-2 Different Combination of BS8900A
Item Complete StyleStandard
StyleCompact Style
Cabinet
Combination
BC8910A +
RC8910A+ PC8910A
BC8910A+
RC8910A
BC8910A+RC8911A
Appearance
Dimension(H*W*D)
( mm*mm*mm)1600*(1200+100)*600 1600*600*600 1600*600*600
Weight of full
configurationwithout battery
260Kg (RSU40,
RSU60E)270Kg (RSU82)
195Kg(RSU40,
RSU60E)205Kg(RSU82)
180Kg (RSU40,
RSU60E)185Kg (RSU82)
RF Modules 6*RSUs 6RSUs 3*RSUs
Power Supply AC+2*150AH DC AC+150AH
Note: Minimally 100mm interval between two cabinets standing on the ground is
reserved for wiring or maintenance in complete style.
3.2 Performance Indices
3.2.1 Operation Frequency Band
Table 3-3 BS8900A Operation Frequency Band
Item Indices
Frequency BandGSM: 850M/900M/1800M/1900M
UMTS: 850M/900M/1800M/1900M//2100M/AWS
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3.2.2 Receiver sensitivity
Table 3-4 BS8900A Receiver Sensitivity
Item Indices
Receiver sensitivity
-113.5dBm@GSM single antenna
-126.5dBm@UMTS single antenna
-129.2dBm@UMTS double antennas
-131.9dBm@UMTS four antennas
3.2.3 TOC Output Power
Table 3-5 BS8900A Output Power
Radio Unit Type TOC Output Power
RSU40 60W
RSU60E 80W
RSU822*80W (900/1800MHz)
2*60W (2100MHz)
3.3 Power Indices
3.3.1 Power Supply
Table 3-6 BS8900A Power Supply Indices
Item Indices
Power supply, voltage range of variation
-48V DC (-57V DC~ -40V DC)
220V AC (176V AC~ 264V AC)
380V AC (phase voltage as above)
Battery back-up Maximum 2*150AH
3.3.2 Power Consumption
3.3.2.1 GSM Single Mode
RSU82 is based on MCPA technology. It supports maximum 2*4 TRXs for GSM.
RSU60E is based on MCPA technology. It supports maximum 6 TRXs for GSM.
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Table 3-7 BS8900A GSM Configuration Power Consumption List (Unit: W, -48V DC)
Station S4/4/4 S8/8/8
Radio Module Frequency Average
Peak
Average
Peak
RSU82
(20W/TRX)
900M 685 1150 1135 2050
1800M 705 1190 1175 2130
Station S6/6/6 S12/12/12
Radio Module Frequency Average Peak Average Peak
RSU60E
(13W/TRX)
850M/900M 670 1165 1275 2165
1800M/1900M 715 1225 1360 2285
3.3.2.2 UMTS Single Mode
Table 3-8 BS8900A UMTS Configuration Power Consumption (Unit: W, -48V DC,20W/Carrier)
Station S111 S222 S333
RadioModule
Frequency Average Peak
Average
Peak
Average Peak
RSU40 2100M 400 605 475 785 615 975
RSU60E 850M/900M 460 665 535 795 635 1000
RSU822100M 355 590 460 775 585 950
900M 510 745 615 875 - -
3.3.2.3 GSM/UMTS Dual Mode
Table 3-9 BS8900A G/U Dual-mode Configuration Power Consumption (Unit: W, -48VDC, 20W/TRX, 20W/Carrier)
S444(G)+S111(U)
Radio Module Name Average Peak
RSU60E (850M/900M) 755 1185
RSU82 (900M) 730 1185
3.4 Interface Indices
Table 3-10 BS8900A Interface Indices
Interface Item Indices Type Standard
Abis/Iub E1/T116 pairs(8pairsoptional)
DB44 ITU G.703/G.704
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Ethernet(either or)
1 10M/100M/1000Melectrical
Auto-Negotiation.
Auto-MDI/MDIX
RJ4510/100/1000BASE-T IEEE 802.3compatible
1 1000M optical
Or 1 100M optical
SFP(LC)
1000BASE-LXIEEE 802.3compatible
100BASE-FX IEEE802.3 compatible
Cascading,Debugging orLocalMaintenance
Ethernet
1 10M/100M/1000Melectrical
Auto-Negotiation.
Auto-MDI/MDIX
RJ4510/100/1000BASE-T IEEE 802.3compatible
Baseband/Radio CPRI 12 pairsSFP(LC)
CPRI 2.0
Clock GPS 1 SMAGPS TX/RX Port
NMEA 0183 V3.0
3.5 Environment Indices
Table 3-11 BS8900A Working Environment Indices
Item Indices
Temperature
-40~55C (AC Power Supply)
-20~55C (DC Power Supply)
Relative Humidity 5%~100%
Waterproof/Dustproof IP55
Ground5. Earth resistance can be less than 10in thunder less area where there are lessthan 20 thunderstorm days in a year.
Mechanical vibration ETSI 300019-1-4 ClassM4.1
3.6 Electromagnetic Compatibility Indices
Table 3-12 BS8900A EMC Indices
Item Indices
Anti-static protectionCapable of protecting against the contactdischarge of 6000V, Air discharge of8000V.
Surge anti-interference requirement 2000V between lines and the ground.
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3.7 Reliability Indices
In ZXSDR BS8900A, the algorithm of system reliability is based on the national military
GJB/Z299B Electronic Equipment Reliability Estimation Manual and US militaryhandbook MIL-HDBK-217F Electronic Equipment Reliability Estimation.
Table 3-13 BS8900A Reliability Indices (RSU82 Configured, DC Power Supply)
Item Indices
MTBF 140,000 hours
MTTR 0.5 hours
Availability index: 99.999643%
Down duration
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DTX Discontinuous transmission
EDGE Enhanced Data rates for GSM Evolution
E-EDGE Enhanced EDGE
EFR Enhanced Full Rate
FAM FAn Module
FE Fast Ethernet
FP Frame Protocol
FR Full Rate
FS Fabric Switch
GE Gigabit Ethernet
GERAN GSM Edge Radio Access Network
GPS Global Positioning System
GSM Global System for Mobile communicationsHR Half Rate
HSPA+ HSPA Evolution
LTE Long Term Evolution
MicroTCA Micro Telecommunications Computing Architecture
MIMO Multi Input Multi Output
MS/UE Mobile Station/User Equipment
MTBF Mean Time Between Failures
MTTR Mean Time To Recovery
NBAP Node B Application Part
OAM Operating And Maintenance
OPEX OPeration EXpenditure
OSS Operation Support Sub-system
PM Power Module
PS Packet Switch
PtM Point to Multi-point
PtP Point to Point
RF Radio Frequency
RNC Radio Network Controller
RRU Remote Radio Unit
RTT Round Trip Time
SA Site Alarm
SCS System Control Sub-system
SDH Synchronous Digital Hierarchy
SDR Software Defined Radio
SE Site Alarm Extension
TA Time Advance
TAM Tower mounted Amplifier control Module
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TMA Tower Mounted Amplifier
TNS Transport Network Sub-system
UBPG Universal Baseband Processing board for GSM
UES Universal Ethernet Switch Board
UL Up Link
USB Universal Serial Bus
UTRAN UMTS Terrestrial Radio Access Network
VxWorks Winder River provided OS
WCDMA Wideband Code Division Multiple Access
WiMAX Worldwide Interoperability for Microwave Access
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