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ZXSDR BS8900A Product
Description
UR11.1
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 1
ZXSDR BS8900A Product Description
Version Date Author Reviewer Notes
V1.40 2011-12-26 Dong Chuanghong 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 document is
subjected to change without notice.
ZXSDR BS8900A Product Description
2 ZTE Confidential Proprietary
TABLE OF CONTENTS
1 Product Overview .............................................................................................. 7
1.1 Introduction ........................................................................................................ 7
1.2 Benefits .............................................................................................................. 8
1.3 Application Scenarios ....................................................................................... 9
2 Product Architecture ....................................................................................... 11
2.1 Physical Structure ........................................................................................... 11
2.2 Hardware Architecture ..................................................................................... 12
2.2.1 Site Support Cabinet BC8910A ....................................................................... 12
2.2.2 Outdoor Radio Cabinet RC8910A ................................................................... 24
2.2.3 Outdoor Radio Cabinet RC8911A ................................................................... 29
2.2.4 Battery Cabinet PC8910A ................................................................................ 30
2.3 Software Architecture ...................................................................................... 30
2.4 Functionality .................................................................................................... 32
2.4.1 Basic Functions ............................................................................................... 32
2.4.2 Service Functions ............................................................................................ 32
3 Technical Specifications ................................................................................. 34
3.1 Physical Indices ............................................................................................... 34
3.2 Performance Indices ........................................................................................ 35
3.2.1 Operation Frequency Band ............................................................................. 35
3.2.2 Capacity Indices ............................................................................................... 35
3.2.3 Receiver sensitivity ......................................................................................... 36
3.2.4 TOC Output Power ........................................................................................... 36
3.3 Power Indices ................................................................................................... 37
3.3.1 Power Supply ................................................................................................... 37
3.3.2 Power Consumption ........................................................................................ 37
3.4 Interface Indices ............................................................................................... 38
3.5 Environment Indices ........................................................................................ 39
3.6 Electromagnetic Compatibility Indices........................................................... 40
3.7 Reliability Indices ............................................................................................. 40
4 Configurations ................................................................................................. 41
4.1 Baseband Unit Configuration .......................................................................... 41
4.2 Radio Unit Configuration ................................................................................. 42
4.3 GSM Single Mode Configuration..................................................................... 42
4.3.1 RSU82 configuration ....................................................................................... 42
4.3.2 RSU60E Configuration ..................................................................................... 43
4.4 UMTS Single Mode Configuration................................................................... 43
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 3
4.4.1 RSU82 configuration ....................................................................................... 43
4.4.2 RSU40 configuration ....................................................................................... 44
4.4.3 RSU60E configuration ..................................................................................... 44
4.5 GSM/UMTS Dual-Mode Configuration ............................................................ 45
4.5.1 GSM 850/900/1800/1900M and UMTS 850/900/1800/1900M Dual-Mode
Network in Same Spectrum ............................................................................. 45
4.5.2 GSM 850/900/1800/1900M and UMTS2100M Dual-Mode Network with
Different Spectrum ........................................................................................... 45
5 Abbreviation .................................................................................................... 47
ZXSDR BS8900A Product Description
4 ZTE Confidential Proprietary
FIGURES
Figure 1-1 BS8900A Appearance ..................................................................................... 7
Figure 1-2 BS8900A Application Scenario .....................................................................10
Figure 2-1 BS8900A Physical Architecture (Complete Style) .......................................11
Figure 2-2 BS8900A Hardware Structure .......................................................................12
Figure 2-3 Site Support Cabinet BC8910A (AC Power Supply) ....................................13
Figure 2-4 Site Support Cabinet BC8910A (DC Power Supply) ....................................13
Figure 2-5 Baseband Unit of BS8900A ...........................................................................14
Figure 2-6 CC Panel .........................................................................................................15
Figure 2-7 UBPG Panel ....................................................................................................16
Figure 2-8 UBPG2 Panel ..................................................................................................17
Figure 2-9 BPC Panel .......................................................................................................18
Figure 2-10 BPK Panel .....................................................................................................19
Figure 2-11 FS Panel ........................................................................................................19
Figure 2-12 SA Panel .......................................................................................................20
Figure 2-13 SE Panel .......................................................................................................21
Figure 2-14 TAM Panel ....................................................................................................22
Figure 2-15 PM Panel .......................................................................................................23
Figure 2-16 FAM Panel ....................................................................................................24
Figure 2-17 Outdoor Radio Cabinet RC8910A ...............................................................25
Figure 2-18 Radio Unit RSU40/RSU60E of BS8900A .....................................................26
Figure 2-19 Radio Unit RSU82 of BS8900A ....................................................................28
Figure 2-20 Outdoor Radio Cabinet RC8911A ...............................................................30
Figure 2-21 Battery cabinet PC8910A .............................................................................30
Figure 2-22 BS8900A Software Structure .......................................................................31
TABLES
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 5
Table 2-1 Board List of Baseband Unit ...........................................................................14
Table 2-2 CC Panel Interfaces .........................................................................................15
Table 2-3 UBPG2 Panel Interface ....................................................................................17
Table 2-4 FS Panel Interfaces .........................................................................................20
Table 2-5 SA Panel Interfaces .........................................................................................20
Table 2-6 SE Panel Interfaces .........................................................................................21
Table 2-7 TAM Panel Interface ........................................................................................22
Table 2-8 PM Panel Interfaces .........................................................................................23
Table 2-9 RSU40/RSU60E Interfaces Description ..........................................................27
Table 2-10 RSU82 Interfaces Description .......................................................................28
Table 2-11 RF Module Brief List ......................................................................................29
Table 3-1 BS8900A Physical Indices ..............................................................................34
Table 3-2 Different Combination of BS8900A ................................................................34
Table 3-3 BS8900A Operation Frequency Band.............................................................35
Table 3-4 BS8900A Capacity Indices ..............................................................................35
Table 3-5 BS8900A Receiver Sensitivity ........................................................................36
Table 3-6 BS8900A Output Power ...................................................................................36
Table 3-7 BS8900A Power Supply Indices .....................................................................37
Table 3-8 BS8900A GSM Configuration Power Consumption List (Unit: W, -48V DC,
13W/TRX) ............................................................................................................................37
Table 3-9 BS8900A UMTS Configuration Power Consumption (Unit: W, -48V DC,
20W/Carrier) ........................................................................................................................38
Table 3-10 BS8900A G/U Dual-mode Configuration Power Consumption (Unit: W, -48V
DC, 20W/TRX, 20W/Carrier) ................................................................................................38
Table 3-11 BS8900A Interface Indices ............................................................................38
Table 3-12 BS8900A Working Environment Indices ......................................................39
Table 3-13 BS8900A EMC Indices ...................................................................................40
Table 3-14 BS8900A Reliability Indices (RSU82 Configured, AC Power Supply) ........40
Table 4-1 Baseband Unit Configuration .........................................................................41
Table 4-2 Radio Unit Configuration ................................................................................42
Table 4-3 BS8900A Configurations in GSM Mode with RSU82 .....................................43
ZXSDR BS8900A Product Description
6 ZTE Confidential Proprietary
Table 4-4 BS8900A Configurations in GSM Mode with RSU60E ...................................43
Table 4-5 BS8900A Configurations in UMTS Mode with RSU82 ...................................43
Table 4-6 BS8900A Configurations in UMTS Mode with RSU40 ...................................44
Table 4-7 BS8900A Configurations in UMTS Mode with RSU60E .................................44
Table 4-8 BS8900A Configurations in G/U Dual-Mode (850M/900M) ............................45
Table 4-9 BS8900A Configurations in G/U Dual-Mode (900MHz) ..................................45
Table 4-10 BS8900A Configuration on G/U Dual-Mode (Different Spectrum) ..............46
Table 4-11 BS8900A Configuration on G/U Dual-Mode (Different Spectrum) ..............46
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 7
1 Product Overview
1.1 Introduction
With the multi-mode era coming, ZTE, who is dedicated to providing
comprehensive network solutions and delivering 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 a series of base stations to
satisfy different scenario requirements, including Indoor Macro, Outdoor Macro,
Distributed, Outdoor Micro, and Mini BTS.
These SDR-based serial base stations aim to design a unified network which can
bring seamless experience to operators. In GSM, UMTS or mixed mode, it enables
operators to save CAPEX and OPEX significantly because they only need to
deploy a Uni-Radio Access Network, compared to the independent GSM and UMTS
networks.
ZXSDR BS8900A is one outdoor macro BTS, providing an 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. BS8900A’s appearance is shown in
Figure 1-1. In the following chapters, a general description will be given to ZXSDR
BS8900A (hereafter referred as “BS8900A”).
Figure 1-1 BS8900A Appearance
ZXSDR BS8900A Product Description
8 ZTE Confidential Proprietary
1.2 Benefits
Easy Installation, Fast Deployment
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*6 GSM TRXs or 2*3 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 900M +GSM 1800 dual band networking, and
UMTS 900M can be realized in the same hardware with corresponding software
upgrade. When GSM is configured initially, UMTS 2100M can be supported by
adding new RF units.
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
Compact Style Standard Style Complete Style
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 9
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 – 55°C working temperature, and C class lightning
protection. BS8900A 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 -40–55°C
working temperature, BS8900A can be used in tough environments. Figure 1-2
shows the application scenario of BS8900A.
ZXSDR BS8900A Product Description
10 ZTE Confidential Proprietary
Figure 1-2 BS8900A Application Scenario
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 11
2 Product Architecture
2.1 Physical Structure
BS8900A 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 2×150AH 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 60 GSM TRXs or 30 UMTS CSs.
Figure 2-1 BS8900A Physical Architecture (Complete Style)
RC8910A
BC8910A
PC8910A
ZXSDR BS8900A Product Description
12 ZTE Confidential Proprietary
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
2.2.1 Site Support Cabinet BC8910A
There are mainly five parts in BC8910A: baseband unit, power supply system,
power distribution module, heat exchanging system and reserved space for
transmission or other equipments. Together with the fan and ventilation vessel,
the heat exchanger located in the cabinet door makes the heat exchanging system.
BC8910A hardware architecture is shown in the following figure.
Radio
Unit
Baseband
Unit Unit
SA/
SE
CC
Baseband
Processin
g
FS
RSU
E1
GE/FE
Clock
Data
Control Signaling
CPRI
Antenn
a
STM-1
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 13
Figure 2-3 Site Support Cabinet BC8910A (AC Power Supply)
In the case of DC power supply, AC/DC power system (5U) should be replaced by
DC power distribution with 2U in height.
Figure 2-4 Site Support Cabinet BC8910A (DC Power Supply)
2.2.1.1 Baseband Unit
Baseband unit in BS8900A is responsible for processing the baseband signals.
Heat Exchanger B8200
Fan and Ventilation
Vessel
AC/DC
Power System
Cable Chute
Heater
Reserved space (for
transmission, etc.)
Lightning Protection
B8200
Fan and Ventilation
Vessel
DC Power Distribution
Lightning Protection
Cable Chute
Reserved space (for
transmission, etc.)
Heat Exchanger
ZXSDR BS8900A Product Description
14 ZTE Confidential Proprietary
Figure 2-5 Baseband Unit of BS8900A
The Baseband unit consists of control & clock board, fabric switch board,
baseband processing board, site alarm board (optional), site alarm extension
board (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
FS Fabric Switch Board
Baseband
Processin
g Board
UBPG Universal Baseband Processing board for GSM
UBPG
2 Universal Baseband Processing board type 2 for GSM
BPC Base band Processing board type C for UMTS
BPK Base band Processing board type K for UMTS
Interface
Board
SA Site Alarm Board
SE Site alarm Extension Board
TAM Tower mounted Amplifier control Module
PM Power Module
FAM Fan Array Module
2.2.1.1.1 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.
Baseband Processing
Board
FS PM
SA
FAM
CC
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 15
Figure 2-6 CC Panel
Description of CC panel interfaces is shown in the following table.
Table 2-2 CC Panel Interfaces
Interface Name Description
ETH0 Ethernet interface between BS8900A and RNC, adapting
interface of 10M/100M/1000M.
ETH1 Ethernet interface used for cascading, debugging or local
maintenance, adapting interface of 10M/100M/1000M.
TX/RX
Used for Ethernet interface connection between BTS and
BSC/RNC. This interface is 100M/1000M Ethernet optical
interface.
EXT External 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
ZXSDR BS8900A Product Description
16 ZTE Confidential Proprietary
Synchronizing with various external reference clocks, including Abis/Iub
interface recovery clock, the GPS 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
Supporting primary/slave switchover
MicroTCA protocol based module management function
2.2.1.1.2 Baseband Processing Board
There are 4 types of baseband processing board in order to meet different
application requirements:
1. 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 2-7 UBPG Panel
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 17
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 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. UBPG2
UBPG2 is another type of GSM baseband processing board. It provides the same
functionalities as UBPG, and has 3 CPRI interface used for RRU remote
connection. The figure below shows the UBPG2 panel.
Figure 2-8 UBPG2 Panel
Table 2-3 UBPG2 Panel Interface
Interface Name Description
ZXSDR BS8900A Product Description
18 ZTE Confidential Proprietary
TX0 RX0 – TX2 RX2 3 pairs of optical interface that connects with RRU.
3. BPC
BPC is the UMTS baseband processing board. It processes the physical layer
protocol and frame protocol specified by 3GPP. BPC panel is illustrated in the
following figure.
Figure 2-9 BPC 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 via the Ethernet interface
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 19
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
4. BPK
BPK is another type of UMTS baseband processing board and its processing
capacity is larger than BPC. BPK panel is illustrated in the following figure.
Figure 2-10 BPK Panel
Besides the same functions of BPC, BPK can provide additional HSPA+
functionalities:
Performing UL 16QAM, and the peak rate throughput can reach 11.5Mbps
Supporting A-RAKE receiving and UL interface cancellation
2.2.1.1.3 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.
Figure 2-11 FS Panel
Description of FS panel interfaces is shown in the following table.
ZXSDR BS8900A Product Description
20 ZTE Confidential Proprietary
Table 2-4 FS Panel Interfaces
Interface Name Description
TX0 RX0 – TX5 RX5 6 pairs optical interfaces, connected to
RRU
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
2.2.1.1.4 Interface Board
1. Site Alarm Board (SA)
SA/SE is a site alarm board, illustrated in the following figure.
Figure 2-12 SA Panel
Description of SA panel interface is shown in the following table.
Table 2-5 SA Panel Interfaces
Interface Name Description
- 8 E1/T1 interfaces,
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 21
Interface Name Description
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 Abis/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.
Figure 2-13 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)
ZXSDR BS8900A Product Description
22 ZTE Confidential Proprietary
SE board can provide the following functions:
Providing E1/T1 transmission interfaces for Abis/Iub.
Providing site alarm monitoring interfaces.
2.2.1.1.5 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 2-14 TAM Panel
Description of the Interfaces on the TAM panel is shown in the table below.
Table 2-7 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
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 23
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
2.2.1.1.6 Power Module (PM)
PM is the power module, illustrated in the following figure.
Figure 2-15 PM Panel
Description of PM panel interface is shown in the following table.
Table 2-8 PM Panel Interfaces
Interface Name Description
MON Debugging interface, RS232
interface
-48V/-48VRTN -48V input
ON/OFF Power switch, turning on/off 12V power
to/from BBU
The PM has the following functions:
16 internal interfaces for +12 V load power;
ZXSDR BS8900A Product Description
24 ZTE Confidential Proprietary
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.
2.2.1.1.7 Fan Array Module (FAM)
FAM is fan array module which panel is illustrated in the following figure.
Figure 2-16 FAM Panel
The FAM main functions are as follows:
System temperature monitor and control;
Monitor, control, and report of fan state.
2.2.1.2 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.
2.2.2 Outdoor Radio Cabinet RC8910A
RC8910A consists of 6 RF modules and fan control system. Its physical
appearance is shown in the following figure.
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 25
Figure 2-17 Outdoor Radio Cabinet RC8910A
Radio unit mainly processes the conversion between baseband signals and RF
signals.
In BS8900A, there are three kinds of radio unit, respectively: RSU40, RSU60E, and
RSU82. RSU40 is a UMTS only radio frequency module, which works in UMTS only
on 2100MHz/AWS. RSU60E is a multi-carrier radio frequency module, which can
work in GSM only, UMTS only or G/U dual mode via software configuration on
850/900/1800/1900MHz. RSU82 is a multi-carrier radio frequency module, which
can work in GSM only, UMTS only or G/U dual mode via software configuration and
support 2 sectors on 900/1800/2100MHz or 1 sector with 2*2 MIMO in HSPA+ mode.
The following will show the details.
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.
Radio Module
RSU
RFAN
Power
Distribution
Module
ZXSDR BS8900A Product Description
26 ZTE Confidential Proprietary
2.2.2.2 RSU60E
RSU60E is a multi-carrier RF module, working on 850M/900M/1800M/1900M. It can
be configured as GSM only, UMTS only or dual mode module.
RSU60E maximum supports 6 TRXs in GSM mode. In case of GMSK modulation,
80W TOC output power can be provided. If 8PSK is used, the TOC output power is
50W.
If RSU60E is used as UMTS mode, it maximum supports 4 carriers with 80W TOC
output power.
In dual modes, 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 2-18 Radio Unit RSU40/RSU60E of BS8900A
The interfaces of RSU40 are the same as those of RSU60E, as described in the
following table.
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 27
Table 2-9 RSU40/RSU60E Interfaces Description
S.N. Label Interface Type/Connector
1 ANT2(RX) Interface to receive
diversity RF cable 50 Ω DIN type connector
2 ANT1(TX/RX)
Interface to
transmit/receive main
diversity RF cable
50 Ω DIN type connector
3 RXin Frequency extension
interface SMA connector
4 RXout Frequency extension
interface SMA connector
5 TX1 RX1 BBU and RSU Interface
/RSU cascading interface
LC-type optical interface
(IEC 874)
6 TX2 RX2 BBU and RSU Interface
/RSU cascading interface
LC-type optical interface
(IEC 874)
7 DBG Debugging network
interface RJ45 socket
8 MON External equipment
interface 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 supports maximum 2*4 TRXs with TOC output power 2*80W
on 900MHz/1800MHz, or 2*6 TRXs with TOC output power 2*60W on
900MHz/1800MHz. In case of GMSK modulation, the TOC output power reaches up
to 2*80W, which falls back to 2*50W if 8PSK is adopted.
In UMTS mode, it maximum supports 2*20MHz with TOC output power 2*80W on
900M or 2*60W on 2100M.
ZXSDR BS8900A Product Description
28 ZTE Confidential Proprietary
In dual modes, 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.
Figure 2-19 Radio Unit RSU82 of BS8900A
The interfaces of RSU82 are described in the following table.
Table 2-10 RSU82 Interfaces Description
S.N. Label Interface Type/Connector
1 ANT2(RX) Interface to receive
diversity RF cable 50 Ω DIN type connector
2 ANT1(TX/RX)
Interface to
transmit/receive main
diversity RF cable
50 Ω DIN type connector
3 ANT3(TR/RX)
Interface to
transmit/receive main
diversity RF cable
50 Ω DIN type connector
4 ANT4(RX) Interface to receive
diversity RF cable 50 Ω DIN type connector
5 TX1 RX1
BBU and RRU
Interface /RRU
cascading interface
LC-mode optical interface (IEC
874)
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 29
6 TX2 RX2
BBU and RRU
Interface /RRU
cascading interface
LC-mode optical interface (IEC
874)
7 DBG Debugging network
interface RJ45 socket
8 MON External equipment
interface 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.
Table 2-11 RF Module Brief List
Radio Tx/Rx Frequency (Hz) Mode TOC
RSU40 1T2R 2100M
U 60W AWS
RSU60E 1T2R
850M G/U
80W 900M G/U
1800M G
1900M G/U
RSU82 2T4R
900M G/U 2*80W
1800M G
2100M U 2*60W
2.2.3 Outdoor Radio Cabinet RC8911A
RC8911A accommodates 3 RF modules, 4 batteries and fan control subsystem. Its
physical appearance is shown in the following figure. RC8911A can be divided into
left and right part. In the right part 3 RSUs can be installed, and in the left part 4
batteries can be arranged. The capacity of the 4 batteries is 150AH. For details of
RF Modules please refer to chapter 2.2.2.
ZXSDR BS8900A Product Description
30 ZTE Confidential Proprietary
Figure 2-20 Outdoor Radio Cabinet RC8911A
2.2.4 Battery Cabinet PC8910A
PC8910A is an outdoor battery cabinet, and it works with BC8910A and RC8910A.
The following figure shows the structure of PC8910A and it contains 8 batteries,
with the capacity of 2×150AH.
Figure 2-21 Battery cabinet PC8910A
2.3 Software Architecture
The software system of BS8900A can be divided into operating support layer and
application layer.
Radio Module
RFANBattery
Power
Distribution
Module
Battery
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 31
Figure 2-22 BS8900A Software Structure
The operating support layer provides the functions of OSS, while OAM, DBS, BRS,
BRACS, and SCS serve different BTS modes.
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.
OSS
GSM Function UMTS
Function
NOP
OMC-B
SCS OAM DB
S
BRACS BR
S
VOS
Sche. Timer Moni. CPP Excep Mem BBX File DBG
Hardware
(BSP)
VxWorks
LMT
ZXSDR BS8900A Product Description
32 ZTE Confidential Proprietary
Board Support Package (BSP) is the software closely connected with the board
hardware and supports Real Time Operation Support Sub-system (RT OSS) to
work on the board.
2.4 Functionality
2.4.1 Basic Functions
Being compliant with 3GPP standards, including GSM Phase I/Phase II Phase II
plus, as well 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.
2.4.2 Service Functions
Main service functions of ZXSDR BS8900A are listed as follows:
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 33
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
ZXSDR BS8900A Product Description
34 ZTE Confidential Proprietary
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 full
configuration
without battery
94Kg
127Kg
(RSU40,RSU6
0E)
139Kg
(RSU82)
93Kg
(RSU40/RSU
60E)
99Kg
(RSU82)
47Kg
Weight of full
configuration
with battery
N/A N/A
277Kg
(RSU40/RSU
60E)
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 Style Standard
Style Compact Style
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 35
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
configuration
without battery
280Kg (RSU40,
RSU60E)
290Kg (RSU82)
200Kg
(RSU40,
RSU60E)
210Kg
(RSU82)
195Kg (RSU40,
RSU60E)
200Kg (RSU82)
RF Modules 6*RSUs 6*RSUs 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 Band GSM: 850M/900M/1800M/1900M
UMTS: 850M/900M/1800/1900/2100M/AWS
3.2.2 Capacity Indices
Table 3-4 BS8900A Capacity Indices
Item (Single Cabinet) Indices
ZXSDR BS8900A Product Description
36 ZTE Confidential Proprietary
Maximum GSM TRX 60 TRXs
Maximum UMTS CS 30 CSs
Maximum GSM/UMTS dual-mode TRX GSM 36 TRXs + UMTS 12 CSs
Maximum CE 960 CEs UL/960 CEs DL (BPC)
1536 CEs UL/1536 CEs DL (BPK)
Maximum data throughput 75 Mbps UL / 300 Mbps DL (BPC)
276 Mbps UL / 1000 Mbps DL (BPK)*
3.2.3 Receiver sensitivity
Table 3-5 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
3.2.4 TOC Output Power
Table 3-6 BS8900A Output Power
Radio Unit Type TOC Output Power
RSU40 60W
RSU60E 80W
RSU82 2*80W (900/1800MHz)
2*60W (2100MHz)
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 37
3.3 Power Indices
3.3.1 Power Supply
Table 3-7 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*6 TRXs for GSM.
RSU60E is based on MCPA technology. It supports maximum 6 TRXs for GSM. In
baseband unit, one UBPG/UBPG2 board supports 12 GSM TRXs.
Table 3-8 BS8900A GSM Configuration Power Consumption List (Unit: W, -48V
DC, 13W/TRX)
Station S6/6/6 S12/12/12
Radio Module Frequency Average Peak Average Peak
RSU82 900M 665 1150 1115 2050
1800M 685 1190 1150 2130
RSU60E 850M/900M 670 1165 1275 2165
1800M/1900M 715 1225 1360 2285
ZXSDR BS8900A Product Description
38 ZTE Confidential Proprietary
3.3.2.2 UMTS Single Mode
Table 3-9 BS8900A UMTS Configuration Power Consumption (Unit: W, -48V DC,
20W/Carrier)
Station S111 S222 S333
Radio
Module Frequency Average Peak Average Peak Average Peak
RSU40 2100M 400 605 475 785 615 975
RSU60E 850M/900M 460 665 535 795 635 1000
RSU82 2100M 355 590 460 775 585 950
900M 515 745 615 875 700 1075
3.3.2.3 GSM/UMTS Dual Mode
Table 3-10 BS8900A G/U Dual-mode Configuration Power Consumption (Unit: W,
-48V DC, 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 3-11 BS8900A Interface Indices
Interface Item Indices Type Standard
Abis/Iub
E1/T1 16 pairs(8pairs
optional) DB44 ITU G.703/G.704
Ethernet
(either or)
1
10M/100M/1000M
electrical
Auto-Negotiation.
Auto-MDI/MDIX
RJ45
10/100/1000BASE-T
IEEE 802.3
compatible
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 39
1 1000M optical
Or 1 100M optical
SFP
(LC)
1000BASE-LX IEEE
802.3 compatible
100BASE-FX IEEE
802.3 compatible
STM-1 2 pairs(optional) SFP
(LC)
ITU G.957
ITU G.707
Cascading,
Debugging or
Local
Maintenance
Ethernet
1
10M/100M/1000M
electrical
Auto-Negotiation.
Auto-MDI/MDIX
RJ45
10/100/1000BASE-T
IEEE 802.3
compatible
Baseband/Radio CPRI 12 pairs SFP
(LC) CPRI 2.0
Clock GPS 1 SMA GPS TX/RX Port
NMEA 0183 V3.0
3.5 Environment Indices
Table 3-12 BS8900A Working Environment Indices
Item Indices
Temperature -40–55°C (AC Power Supply)
-20–55°C (DC Power Supply)
Relative Humidity 5%–100%
Waterproof/Dustproof IP55
Ground
≤5Ω. Earth resistance can be less than
10Ω in thunderless area where there
are less than 20 thunderstorm days in a
year.
Mechanical vibration ETSI 300019-1-4 ClassM4.1
ZXSDR BS8900A Product Description
40 ZTE Confidential Proprietary
3.6 Electromagnetic Compatibility Indices
Table 3-13 BS8900A EMC Indices
Item Indices
Anti-static protection
Capable of protecting against the contact
discharge of ±6000V, Air discharge of
±8000V.
Surge anti-interference
requirement ±2000V between lines and the ground.
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
military handbook MIL-HDBK-217F Electronic Equipment Reliability Estimation.
Table 3-14 BS8900A Reliability Indices (RSU82 Configured, AC Power Supply)
Item Indices
MTBF ≥134,000 hours
MTTR 0.5 hours
Availability index: ≥99.999627%
Down duration <1.961min/year
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 41
4 Configurations
4.1 Baseband Unit Configuration
B8200 is the baseband unit of BS8900A, B8200 is composed of these boards: CC,
baseband processing boards, FS, SA/SE, TAM, PM and FAM. Configuration
principles of these boards are described in the following table:
Table 4-1 Baseband Unit Configuration
Board Configuration Principles
CC At least 1 board is configured by default.
Maximum 2 boards can be configured for 1+1 backup.
Baseband
Processing
Board
UBPG 12 GSM TRXs/board.
Maximum 5 boards can be configured.
UBPG2 12 GSM TRXs/board, with 3 pairs of CPRI interfaces.
Maximum 5 boards can be configured.
BPC
6 UMTS CSs/board, with 192CEs UL/192CEs DL
simultaneously. 15Mbps UL and 60Mbps DL
simultaneously.
Maximum 5 boards can be configured.
BPK
6 UMTS CSs/board, with 384 CEs UL/384 CEs DL
simultaneously. 6*11.5Mbps UL and 6*43.2Mbps DL
simultaneously.
Maximum 4 boards can be configured.
FS
6 pairs of CPRI interfaces/board. At least 1 board is
configured by default for UMTS mode or G/U dual
modes.
Maximum 2 boards can be configured.
Interface
Board SA
6+2 dry contacts and 8 pairs of E1/T1 per board.
It is configured by default.
ZXSDR BS8900A Product Description
42 ZTE Confidential Proprietary
SE
6+2 dry contacts and 8 pairs of E1/T1 per board.
It is configured only when the requirements of dry
contacts or E1/T1 exceed SA capacity.
TAM
6 DC outputs with customized voltage per board.
It is configured for tower mounted amplifier control when
TMA is needed.
PM At least 1 board is configured by default.
Maximum 2 boards can be configured for 1+1 backup.
FAM It is configured by default.
4.2 Radio Unit Configuration
BS8900A radio unit cabinet can be equipped with 6 RF modules, 6 RF modules are
corresponding to 6 sectors. Each of that can be configured as GSM or UMTS or
GSM/UMTS together by software. By choosing different frequencies and software
configuration, BS8900A can support various GSM/UMTS configurations:
Table 4-2 Radio Unit Configuration
RSU Configuration Principles
RSU40 Maximum 4 carriers in UMTS single mode.
RSU60E Maximum 6 TRXs in GSM or 4 carriers in UMTS single mode.
Maximum 4 TRXs+1 carrier or 2 TRXs+2 carriers in G/U dual mode.
RSU82
Maximum 2*6 TRXs in GSM single mode.
Maximum 2*3 carriers in UMTS single mode.
Maximum 2*(4 TRXs+1 carrier) or 2*(2 TRXs+2 carriers) in G/U dual
mode.
4.3 GSM Single Mode Configuration
4.3.1 RSU82 configuration
RSU82 is based on MCPA technology. It supports maximum 2*6 TRXs for GSM. In
baseband unit, one UBPG/UBPG2 board supports 12 GSM TRXs.
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 43
Table 4-3 BS8900A Configurations in GSM Mode with RSU82
Site Type Number of RSU Number of
UBPG/UBPG2 Number of Rack
S6/6/6 2 2 1
S12/12/12 3 3 1
4.3.2 RSU60E Configuration
RSU60E is based on multi-carrier technology. In GSM mode, it maximum supports
6 TRXs. For baseband part, one UBPG/UBPG2 board can support 12 TRXs.
Table 4-4 BS8900A Configurations in GSM Mode with RSU60E
Site Type Number of RSU Number of
UBPG/UBPG2 Number of Rack
S4/4/4 3 1 1
S6/6/6 3 2 1
S12/12/12 6 3 1
4.4 UMTS Single Mode Configuration
4.4.1 RSU82 configuration
One RSU82 supports maximum 2*3 carriers in UMTS single mode when ensuring
20W per carrier. For baseband unit, one BPC/BPK can support UMTS 6CSs.
Table 4-5 BS8900A Configurations in UMTS Mode with RSU82
Site Type Number of RSU Number of
BPC/BPK Number of Rack
S1/1/1 2 1 1
S2/2/2 2 1 1
S3/3/3 2 2 1
S4/4/4 3 2 1
ZXSDR BS8900A Product Description
44 ZTE Confidential Proprietary
S2/2/2/2/2/2 3 2 1
4.4.2 RSU40 configuration
RSU40 maximum output power is 60W in UMTS 2100M.One RSU40 supports 3
carriers when it ensures the 20W output power for each carrier. For baseband part,
one BPC/BPK can support 6 CSs.
Table 4-6 BS8900A Configurations in UMTS Mode with RSU40
Site Type Number of RSU Number of
BPC/BPK Number of Rack
S1/1/1 3 1 1
S2/2/2 3 1 1
S3/3/3 3 2 1
S4/4/4 6 2 1
S2/2/2/2/2/2 6 2 1
4.4.3 RSU60E configuration
RSU60E maximum output power is 80W in UMTS 850/900M. One RSU60E supports
4 carriers when it ensures the 20W output power for each carrier. For baseband
part, one BPC/BPK can support 6CSs.
Table 4-7 BS8900A Configurations in UMTS Mode with RSU60E
Site Type Number of RSU Number of
BPC/BPK Number of Rack
S1/1/1 3 1 1
S2/2/2 3 1 1
S3/3/3 3 2 1
S4/4/4 3 2 1
S2/2/2/2/2/2 6 2 1
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 45
4.5 GSM/UMTS Dual-Mode Configuration
There are two scenarios for GSM/UMTS dual-mode networking: GSM/UMTS dual
mode network in same spectrum; GSM/UMTS dual mode network with different
spectrum
4.5.1 GSM 850/900/1800/1900M and UMTS 850/900/1800/1900M Dual-Mode
Network in Same Spectrum
If one RSU60E is configured in this scenario, the configuration is shown in the
following table. One RSU60E supports 4 GSM TRXs + 1 UMTS carrier or 2 GSM
TRXs + 2 UMTS carriers simultaneously.
Table 4-8 BS8900A Configurations in G/U Dual-Mode (850M/900M)
Site Type Number of
RSU60E
Number of
UBPG/UBPG2
Number of
BPC/BPK
Number of
Rack
G:S444+U:S111 3 1 1 1
G:S222+U:S222 3 1 1 1
If the working frequency lies in 900MHz, RSU82 is adopted, with configuration
shown in the following table. One RSU82 supports 2*(4 GSM TRXs + 1 UMTS
carrier) or 2*(2 GSM TRXs + 2 UMTS carriers) simultaneously.
Table 4-9 BS8900A Configurations in G/U Dual-Mode (900MHz)
Site Type Number of
RSU82
Number of
UBPG/UBPG2
Number of
BPC/BPK
Number of
Rack
G:S888+U:S222 3 2 1 1
G:S444+U:S444 3 1 2 1
4.5.2 GSM 850/900/1800/1900M and UMTS2100M Dual-Mode Network with
Different Spectrum
If RSU40 and RSU60E are configured simultaneously in this scenario, RSU40 is
used for UMTS2100MHz, and RSU60E is used for GSM850/900/1800/1900MHz.
ZXSDR BS8900A Product Description
46 ZTE Confidential Proprietary
Wideband combiner is needed in the mode of community feeder line and
community antenna.
Table 4-10 BS8900A Configuration on G/U Dual-Mode (Different Spectrum)
Site Type Number of
RSU
Number of
UBPG/UBPG2
Number
of
BPC/BPK
Number
of Rack
G:S666(850/900/1800/1
900M) +U:S333(2100M)
3
RSU60E-850/90
0/1800/1900M +
3
RSU40-2100M
2 2 1
If RSU82 is configured simultaneously in this scenario, the configuration is shown
in the following table.
Table 4-11 BS8900A Configuration on G/U Dual-Mode (Different Spectrum)
Typical Site Type Number of RSU
Number of
UBPG/UBPG
2
Number
of
BPC/BP
K
Numbe
r of
Rack
G:S444(900/1800MHz
) +U:S222(2100MHz)
2
RSU82-900/1800MH
z + 2
RSU82-2100MHz
1 1 1
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 47
5 Abbreviation Abbreviations Full Characteristics
3GPP 3rd
Generation Partnership Project
64QAM 64 grade Quadrature Amplitude Modulation
AGPS Assisted GPS
AMR Adaptive Multi Rate
BB Base Band
BBU Base Band processing Unit
BCCH Broadcast Control Channel
BITS Building Integrated Timing Supply
BPC Base band Processing type C for UMTS
BPK Base band Processing type K for UMTS
BRACS Bearer Access Control Sub-system
BRS Bearer Sub-system
BSC Base Station Controller
BSP Board Support Package
BTS Base Transceiver Station
CAPEX CAPital EXpenditure
CC Control & Clock
CE Channel Element
CN Core Network
CORBA Common Object Request Broker Architecture
CPRI Common Public Radio Interface
CS Circuit Switch
CS Carrier Sector
DBS Data Base Sub-system
DL Down Link
DTX Discontinuous transmission
EDGE Enhanced Data rates for GSM Evolution
E-EDGE Enhanced EDGE
ZXSDR BS8900A Product Description
48 ZTE Confidential Proprietary
EFR Enhanced Full Rate
FAM Fan Array 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 communications
HR 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
ZXSDR BS8900A Product Description
ZTE Confidential Proprietary 49
SDH Synchronous Digital Hierarchy
SDR Software Defined Radio
SE Site Alarm Extension
TA Time Advance
TAM Tower mounted Amplifier control Module
TMA Tower Mounted Amplifier
TNS Transport Network Sub-system
UBPG Universal Baseband Processing board for GSM
UBPG Universal Baseband Processing board for GSM
UBPG2 Universal Baseband Processing board 2 for GSM
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