Product Overview
With the multi-mode era coming, ZTE, who is dedicated to providing comprehensivenetwork solutions and delivering the future-oriented quality network for the operators,developed the ground breaking SDR unified platform with the essential feature to supportmulti-mode and multi-band radio access.
Based on this innovative SDR platform, ZTE promotes a series of base stations to satisfydifferent 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 bringseamless experience to operators. In GSM, UMTS or mixed mode, it enables operatorsto save CAPEX and OPEX significantly because they only need to deploy a Uni-RadioAccess Network, compared to the independent GSM and UMTS networks.
ZXSDR BS8900A is one outdoor macro BTS, providing an all in one solution for powersupply, battery, and transmission integration. It offers GSM/UMTS dual-mode networkingcapability and provides a future-proof solution for smooth evolution to Enhanced EDGE,HSPA+ and LTE. BS8900A appearance is shown in Figure 1-1. In the followingchapters, a general description will be given to ZXSDR BS8900A (hereafter referred as BS8900A)
Product Architecture
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 totalheight reaches 1816mm.
Outdoor baseband cabinet is also called site support cabinet, including power distributionshelf, 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 or30 UMTS CSs.
BS8900A Physical Architecture (Complete Style)
Hardware Architecture
BS8900A consists of two main parts: baseband unit and radio unit as shown in thefollowing figure
Figure 2-2 BS8900A Hardware Structure
Site Support Cabinet BC8910A
There are mainly five parts in BC8910A: baseband unit, power supply system, powerdistribution module, heat exchanging system and reserved space for transmission orother equipments. Together with the fan and ventilation vessel, the heat exchangerlocated in the cabinet door makes the heat exchanging system. BC8910A hardwarearchitecture is shown in the following figure
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 DCpower distribution with 2U in height.
Figure 2-4 Site Support Cabinet BC8910A (DC Power Supply)
Baseband Unit
Baseband unit in BS8900A is responsible for processing the baseband signals.
Figure 2-5 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),Tower mounted Amplifier control Module (optional), power module, and fan module.
Table 2-1 Board List of Baseband Unit
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 2-6 CC Panel
Description of CC panel interfaces is shown in the following table.
Table 2-2 CC Panel Interfaces
Baseband Processing Board
There are 4 types of base band processing board in order to meet different application requirements:
1. UBPG
UBPG is the GSM baseband processing board. It processes the physical layer protocoland frame protocol specified by 3GPP. UBPG panel is illustrated in the following figure.
Figure 2-7 UBPG Panel
2. UBPG2
UBPG2 is another type of GSM baseband processing board. It provides the samefunctionalities as UBPG, and has 3 CPRI interface used for RRU remote connection. Thefigure below shows the UBPG2 panel.
Figure 2-8 UBPG2 Panel
3. BPC
BPC is the UMTS baseband processing board. It processes the physical layer protocoland frame protocol specified by 3GPP. BPC panel is illustrated in the following figure.
Fabric Switch Board (FS)
FS is fabric switch board which provides baseband optical interface between BBU andRRU and processes the IQ signal. FS panel is illustrated in the following figure.
Description of FS panel interfaces is shown in the following table.
Interface Board
1. Site Alarm Board (SA)
SA/SE is a site alarm board, illustrated in the following figure.
Description of SA panel interface is shown in the following table.
2. Site alarm Extension Board (SE)
SE is site alarm extension board, and shares the bottom-right slot with Basebandprocessing board. It is used to extend the port number if SA cannot fulfill therequirements. The SE panel is illustrated in the following figure.
Description of SE panel interfaces is shown in the following table.
Tower mounted Amplifier control Module (TAM)
TAM is used for tower mounted amplifier control when TMA is needed. Panel of TAM isshown as following figure
Description of the Interfaces on the TAM panel is shown in the table below.
Power Module (PM)
PM is the power module, illustrated in the following figure.
Description of PM panel interface is shown in the following table.
Fan Array Module (FAM)
FAM is fan array module which panel is illustrated in the following figure
AC/DC Power System
The power system of BC8910A contains 4×30A AC/DC rectifiers. It is 5U in height. Itsconfiguration depends on the load and the backup battery capacity.
Outdoor Radio Cabinet RC8910A
RC8910A consists of 6 RF modules and fan control system. Its physical appearance isshown in the following figure.
Figure 2-16 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, andRSU82. RSU40 is a UMTS only radio frequency module, which works in UMTS only on2100MHz/AWS. RSU60E is a multi-carrier radio frequency module, which can work inGSM only, UMTS only or G/U dual mode via software configuration on850/900/1800/1900MHz. RSU82 is a multi-carrier radio frequency module, which canwork in GSM only, UMTS only or G/U dual mode via software configuration and support 2sectors on 900/1800/2100MHz or 1 sector with 2*2 MIMO in HSPA+ mode. The followingwill show the details
RSU40
RSU40 is UMTS multi-carrier radio unit, working on 2100M/AWS. RSU40 supportsmaximum 4 carriers, and the output power is 60W.RSU40 module consists of MCPA (multi-carrier power module) module, transceivermodule, and duplex filter LNA. There are one TX/RX port and one RX port for connectingantennas.
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. In case of GMSK modulation, 80WTOC 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 outputpower.In dual modes, RSU60E maximum supports 4 GSM TRXs and 1 UMTS carrier or 2 GSMTRXs 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, asshown in the following figure
Figure 2-17 Radio Unit RSU40/RSU60E of BS8900A
The interfaces of RSU40 are the same as those of RSU60E, as described in the followingtable.
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 2sectors in GSM/UMTS or 1 sector with 2*2 MIMO in HSPA+ mode. RSU82 can beconfigured as GSM only, UMTS only or mixed mode.In GSM mode, RSU82 supports maximum 2*4 TRXs with TOC output power 2*80W on900MHz/1800MHz, or 2*6 TRXs with TOC output power 2*60W on 900MHz/1800MHz. Incase of GMSK modulation, the TOC output power reaches up to 2*80W, which falls backto 2*50W if 8PSK is adopted.In UMTS mode, it maximum supports 2*20MHz with TOC output power 2*80W on 900Mor 2*60W on 2100M.In dual modes, RSU82 maximum supports 2*(4 TRXs + 1 carrier) or 2*(2 TRXs + 2carriers).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 2-18 Radio Unit RSU82 of BS8900A
The interfaces of RSU82 are described in the following table
Outdoor Radio Cabinet RC8911A
RC8911A accommodates 3 RF modules, 4 batteries and fan control subsystem. Itsphysical appearance is shown in the following figure. RC8911A can be divided into leftand right part. In the right part 3 RSUs can be installed, and in the left part 4 batteries canbe arranged. The capacity of the 4 batteries is 150AH. For details of RF Modules pleaserefer to chapter 2.2.2.
Battery Cabinet PC8910A
PC8910A is an outdoor battery cabinet, and it works with BC8910A and RC8910A. Thefollowing figure shows the structure of PC8910A and it contains 8 batteries, with thecapacity of 2×150AH
Technical Specifications
Table 3-1 BS8900A Physical Indices
Table 3-2 Different Combination of BS8900A
Model: ZXSDR BS8900A
Detail: ZTE ZXSDR BS8900A include BC8910A PC8910A RC8911A
Availability: IN STOCK
