gu der zxsdr bs8906 product description ur11.2 v1.02 20120525

ZXSDR BS8906 Product Description

UR11.2

ZXSDR BS8906 Product Description

Version Date Author Reviewer Notes

V1.00 2012-03-05 Not open to the Third Party

V1.01 2012-03-14

V1.02 2012-05-25

TABLE OF CONTENT

ZTE Confidential Proprietary 1

© 2023 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.

S

1 Product Overview.................................................................................................2

1.1 Introduction.............................................................................................................2

1.2 Benefits...................................................................................................................2

1.3 Application Scenarios.............................................................................................2

2 Product Architecture............................................................................................2

2.1 Physical Structure...................................................................................................2

2.2 Hardware Architecture............................................................................................2

2.2.1 Baseband Unit........................................................................................................2

2.2.2 Radio Unit...............................................................................................................2

2.3 Software Architecture..............................................................................................2

2.4 Functionality............................................................................................................2

2.4.1 Basic Functions.......................................................................................................2

2.4.2 Service Functions...................................................................................................2

3 Technical Specifications.....................................................................................2

3.1 Physical Indices......................................................................................................2

3.2 Performance Indices...............................................................................................2

3.2.1 Operation Frequency Band.....................................................................................2

3.2.2 Capacity Indices......................................................................................................2

3.2.3 Receiver Sensitivity.................................................................................................2

3.2.4 ToC Output Power..................................................................................................2

3.3 Power Indices.........................................................................................................2

3.3.1 Power Requirements..............................................................................................2

3.3.2 Power Consumption................................................................................................2

3.4 Interface Indices......................................................................................................2

3.5 Environment Indices...............................................................................................2

3.6 Electromagnetic Compatibility Indices....................................................................2

3.7 Reliability Indices....................................................................................................2

4 Configurations......................................................................................................2

4.1 Baseband Unit Configuration..................................................................................2

4.2 Radio Unit Configuration.........................................................................................2

4.3 GSM Single Mode Configuration............................................................................2

4.3.1 RSU60E Configuration............................................................................................2

4.3.2 RSU82 Configuration..............................................................................................2

2 ZTE Confidential Proprietary

4.4 UMTS Single Mode Configuration..........................................................................2


4.4.2 RSU60E Configuration............................................................................................2


4.5 GSM/UMTS Dual-Mode Configuration....................................................................2

5 Abbreviations.......................................................................................................2


FIGURES

Figure 1-1 ZXSDR BS8906 Appearance.................................................................................2

Figure 1-2 ZXSDR BS8906 Application Scenario....................................................................2

Figure 2-1 Physical Structure of ZXSDR BS8906...................................................................2

Figure 2-2 ZXSDR BS8906 Hardware Structure.....................................................................2

Figure 2-3 Baseband Unit–ZXSDR B8200..............................................................................2

Figure 2-4 CC Panel................................................................................................................2

Figure 2-5 FS Panel.................................................................................................................2

Figure 2-6 UBPG Panel...........................................................................................................2

Figure 2-7 UBPG2 Panel.........................................................................................................2

Figure 2-8 BPK Panel..............................................................................................................2

Figure 2-9 SA Panel.................................................................................................................2

Figure 2-10 PM Panel..............................................................................................................2

Figure 2-11 FAM Panel............................................................................................................2

Figure 2-12 Radio Unit RSU40/RSU60E.................................................................................2

Figure 2-13 Radio Unit RSU82................................................................................................2

Figure 2-14 ZXSDR BS8906 Software Structure.....................................................................2

TABLES

Table 2-1 Board List of ZXSDR B8200....................................................................................2

Table 2-2 CC Panel Interfaces.................................................................................................2

Table 2-3 FS Panel Interfaces.................................................................................................2

Table 2-4 UBPG2 Panel Interface...........................................................................................2

Table 2-5 SA Panel Interfaces.................................................................................................2


Table 2-6 PM Panel Interfaces................................................................................................2

Table 2-7 RSU40/RSU60E Interfaces Description..................................................................2

Table 2-8 RSU82 Interfaces Description.................................................................................2

Table 2-9 Brief List of RF Modules in BS8906:........................................................................2

Table 3-1 ZXSDR BS8906 Physical Indices............................................................................2

Table 3-2 ZXSDR BS8906 Operation Frequency Band..........................................................2

Table 3-3 ZXSDR BS8906 Capacity Indices (single cabinet)..................................................2

Table 3-4 ZXSDR BS8906 Receiver Sensitivity......................................................................2

Table 3-5 ZXSDR BS8906 Output Power................................................................................2

Table 3-6 ZXSDR BS8906 Power Indices...............................................................................2

Table 3-7 Power Consumption of BS8906 in GSM Configuration (RSU60E, Unit: W,

20W/TRX).................................................................................................................................2

Table 3-8 Power Consumption of BS8906 in GSM Configuration (RSU82, Unit: W,

20W/TRX).................................................................................................................................2

Table 3-9 Power Consumption of BS8906 in UMTS Configuration (RSU60E, Unit: W,

20W/Carrier).............................................................................................................................2

Table 3-10 Power Consumption of BS8906 in UMTS Configuration (RSU82, Unit: W,

20W/Carrier).............................................................................................................................2

Table 3-11 Power Consumption of BS8906 in GSM and UMTS Dual Mode (RSU60E, Unit:

W, 15W/TRX, 20W/Carrier)......................................................................................................2

Table 3-12 Power Consumption of BS8906 in GSM and UMTS Dual Mode (RSU82, Unit: W,

20W/TRX, 20W/Carrier)............................................................................................................2

Table 3-13 ZXSDR BS8906 Interface Indices.........................................................................2

Table 3-14 ZXSDR BS8906 Working Environment Indices.....................................................2

Table 3-15 ZXSDR BS8906 EMC Indices...............................................................................2

Table 3-16 ZXSDR BS8906 Reliability Indices (DC Power Supply)........................................2

Table 3-17 ZXSDR BS8906 Reliability Indices (AC Power Supply)........................................2

Table 4-1 ZXSDR B8200 Configuration...................................................................................2

Table 4-2 Radio Unit Configuration..........................................................................................2

Table 4-3 ZXSDR BS8906 Configuration S6 in GSM Single Mode (RSU60E).......................2

Table 4-4 ZXSDR BS8906 Configuration S11 in GSM Single Mode (RSU82)........................2


Table 4-5 ZXSDR BS8906 Configuration in UMTS Single Mode (RSU40).............................2

Table 4-6 ZXSDR BS8906 Configuration S4 in UMTS Single Mode (RSU60E).....................2

Table 4-7 ZXSDR BS8906 Configuration S11 in UMTS Single Mode (RSU82)......................2

Table 4-8 ZXSDR BS8906 Configuration in G/U Dual-Mode (RSU60E).................................2


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 BS8906 is a multi-carrier, multi-mode outdoor compact base station which can

support GPRS/ EDGE/ Enhanced EDGE and UMTS/HSPA /HSPA+ simultaneously. It

can be flexibly configured as GERAN BTS, UTRAN Node B or G/U dual-mode base

station only by software reconfiguration. The appearance of ZXSDR BS8906 is shown in

the figure below.


Figure 1-1 ZXSDR BS8906 Appearance

Compact cabinet Standalone cabinet

1.2 Benefits

Small Size, Fast Installation, Adaptive to Outdoor Environment

With High integration, small size and light weight, ZXSDR BS8906 is easy for

transportation and installation, thus the implementation cost can be reduced. It supports

several installation modes, including ground-mounted, pole-mounted and wall-mounted,

etc.

ZXSDR BS8906 can be installed both indoor and outdoor. It is designed as IP55

waterproof/dustproof and has C-level lightning protection module, which is adaptive to

outdoor environment.

Flexible GSM/UMTS Dual Mode Networking

ZXSDR BS8906 meets GSM/UMTS multi-mode networking requirements in different

scenarios. It supports 850M/900M/1800M/1900M/2100MHz/AWS multi-band

networking, and GSM/UMTS multi-mode networking which can be supported with

corresponding software configuration.


Smooth Evolution

ZXSDR BS8906 software and hardware support full-feature EDGE and

UMTS/HSPA/HSPA+. The technologies consolidation satisfies operators’ evolution

requirements. Only software upgrade is needed for the switches between different

technologies.

Low Power Consumption

The PA efficiency achieves 50% with ZTE patent Doherty + DPD + D-PT technology.

Taking GSM S4 for example, the power consumption is 285W which is much less than

that of conventional compact base station.

IP RAN

ZXSDR BS8906 fully supports IP RAN and provides GE/FE or IPoverE1 for Abis/Iub

interfaces.

1.3 Application Scenarios

ZXSDR BS8906 develops a new compact BTS solution for GSM/UMTS. It can be

applied in both indoor and outdoor environments, such as dense urban, urban, suburban

and rural areas. Especially for the scenario with limited space, the small size BTS can

be flexibly installed.

Figure 1-2 ZXSDR BS8906 Application Scenario


Outdoor

Indoor

2 Product Architecture

2.1 Physical Structure

ZXSDR BS8906 has two kinds of hardware physical structures:

Compact Cabinet, which consists of BBU, RSU and supporting modules.

Standalone Cabinet, which consists of BBU and supporting modules.

The physical structures are shown in the following figure.

Figure 2-3 Physical Structure of ZXSDR BS8906

Compact cabinet Standalone cabinet

In the compact cabinet, BS8906 consists of BBU, RSU, FCE, PSU+APM (AC)/DPM

(DC), LPU\SDH\microwave IDU etc. The internal communication takes place between

BBU, RSU and FCE.

BBU and the RSU connect to each other through the CPRI interface. FCE is responsible

for driving controlling and monitoring fans, controlling the on-off status of the heaters.

Besides, FCE collects and creates alarms of access control, temperature, flooding and


Baseband Unit

Radio UnitRadio Unit

SASENIS CC

BasebandProcessing

FS RSU

E1STM-1

Clock

Data

Control Signaling

CPRI

Antenna

RF Unit

lightning alarms. FCE is connected to SA of the BBU through the RS485 interface to

monitor communication.

The standalone cabinet is similar to the compact cabinet, except that there is no RSU

module in it.

2.2 Hardware Architecture

ZXSDR BS8906 (compact cabinet) consists of two main parts: baseband unit and radio

unit as shown in the following figure.

Figure 2-4 ZXSDR BS8906 Hardware Structure

2.2.1 Baseband Unit

The baseband unit is named ZXSDR B8200 which can be inserted into integrated macro

and compact base station or separate from RRU in distributed base station. It is

responsible for processing the baseband signals.


GE/FE

FSPM

SA

FAM

CC

Figure 2-5 Baseband Unit–ZXSDR B8200

The Baseband unit consists of control & clock board, fabric switch board, baseband

processing board, site alarm board, site alarm extension board (optional), Tower

mounted Amplifier control Module (optional), power module, and fan module.

Table 2-1 Board List of ZXSDR B8200

Board Name Function Description

CC Control & Clock Board

FS Fabric Switch Board

Baseband

Processing

Board

UBPG Universal Baseband Processing board for GSM

UBPG2 Universal Baseband Processing board type 2 for GSM

BPK Base band Processing board type K for UMTS

BPK_s Base band Processing board type K_s for UMTS

Interface

Board

SA Site Alarm Board

SE Site alarm Extension 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.


Baseband Processing Board

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

ETH0Ethernet interface between BTS and BSC/RNC, self-adaptive

electrical interface of 10M/100M/1000M.

ETH1

Ethernet interface used for cascading, debugging or local

maintenance, self-adaptive electrical 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.

EXTExternal communication port, connected to external receiver

(Mainly RJ485 interface).

REFConnected to GPS signal interface, or 2 MHz BITS signal

interface.

The CC board provides the following functions:

Ethernet switching function, implementing data switching for service and control

flow within the system

Abis/Iub interface protocol processing

Managing software versions of boards and programmable components, and

supporting local and remote software upgrade

Reading various hardware management marks in the system, including the rack

number, backplane type number, slot number, board function type, board version,

and board function configuration mark


Monitoring, controlling and maintaining of the base station system, providing LMT

interface

Supervising the running status of each board within the system

Supporting primary/slave switchover

Synchronizing with various external reference clocks, including the Abis/Iub

interface recovery clock, the GPS clock, and the clock provided by BITS; CC can

select one of them 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

MicroTCA protocol based module management function

2.2.1.2 Fabric Switch Board (FS)

FS is fabric switch board which provides baseband interface between BBU and RRU

and process the I/Q signal. FS panel is illustrated in the following figure.

Figure 2-7 FS Panel

Table 2-3 FS Panel Interfaces


TX0 RX0–TX5 RX5 6 pairs of optical/electrical interfaces, connected

to RRU

It provides the following functions:


Receiving the signal from the rear board in the downlink and retrieve the data and

timing.

Multiplexing the received data and retrieve I/Q signal

I/Q mapping in the downlink and multiplex I/Q signal to the optical signals

Receiving the I/Q in uplink and de-multiplex/mapping into I/Q signal

Transmitting the multiplexed I/Q signal to baseband processing board

Exchanging CPU interface signaling through HDLC interface with RU module

2.2.1.3 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 2-8 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 CS 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 2-9 UBPG2 Panel

Table 2-4 UBPG2 Panel Interface


TX0 RX0–TX2 RX2 3 pairs of optical interface that connects with RRU.

3. BPK

BPK is UMTS baseband processing board. It processes the physical layer protocol and

frame protocol specified by 3GPP. Its panel is illustrated in the following figure.

Figure 2-10 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 CS 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

Besides, 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

4. BPK_s

BPK_s is another type of UMTS baseband processing board, providing the same

functions as BPK but with half of the capacity.

2.2.1.4 Site Alarm Board (SA)

SA is a site alarm board, illustrated in the following figure.


Figure 2-11 SA Panel

Description of SA panel interface is shown in the following table.

Table 2-5 SA Panel Interfaces


- 8 E1/T1 interfaces,

1 RS485 interface,

1RS232 interface,

6+2 dry contacts (6 input interfaces, 2 bidirectional interfaces)

SA has the following functions:

Providing E1/T1 transmission interfaces for Abis/Iub.

Providing site alarm monitoring interfaces.

Providing FAM's alarm and speed control.

Dry contact signal monitoring and lightning protection of the external interfaces.

2.2.1.5 Power Module (PM)

PM is power module, and PM panel is illustrated in the following figure.


Figure 2-12 PM Panel

Description of PM panel interface is shown in the following table.

Table 2-6 PM Panel Interfaces


MON Debugging interface, RS232 serial interface

-48V/-48VRTN -48V input

ON/OFFPower switch, turning on/off 12V power to/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

2.2.1.6 Fan Array Module (FAM)

FAM is fan array module, and the panel is illustrated as follows.


Figure 2-13 FAM Panel

Main functions of FAM are as follows:

System temperature monitoring and controlling;

Monitoring, controlling, and reporting the state of fans.

2.2.2 Radio Unit

Radio unit mainly process the conversion between baseband signals and RF signals. In

ZXSDR BS8906, there are three kinds of radio units: RSU40, RSU60E, and RSU82.

RSU40 is a UMTS only radio frequency module, which works only on 2100MHz.

RSU60E is a multi-carrier radio frequency module, which can work in GSM only, UMTS

only or GSM and UMTS dual-mode via software configuration on 900/1800MHz.

RSU82 is a multi-carrier radio frequency module on 900/1800/2100MHz, which can work

in GSM only, UMTS only or mixed mode via software configuration. Single box supports

2-sector configuration or single-sector with MIMO 2*2 in HSPA+.

Details of the three types of radio units will be shown in the following sections.

2.2.2.1 RSU40

RSU40 is a UMTS multi-carrier radio unit with 1T2R, working on 2100MHz/AWS.

RSU40 supports maximal 4 carriers, and the output power is 80W.

RSU40 module consists of MCPA (multi-carrier power module) module, transceiver

module, and duplex filter LNA, with built-in NSBT module.


2.2.2.2 RSU60E

RSU60E is a multi-carrier and dual-mode RF module, which is working on

850M/900M/1800M/1900MHz. It can be configured as GSM only, UMTS only or GSM

and UMTS dual-mode. RSU60E can be configured with 1 to 6 TRX in GSM single-

mode. If RSU60E is used as UMTS mode, it can support 4 carriers with 80W TOC

output power. In mixed mode, RSU60E can support 4 GSM TRX and 1 UMTS carrier or

2 GSM TRX and 2 UMTS carriers.

RSU60E module consists of MCPA module, transceiver module, and duplex filter LNA.

There are two antenna ports provided by the box: one TX/RX port and one RX port, for

the connection to the antenna.

The appearance of RSU60E is the same as that of RSU40, as shown in the following

figure.

Figure 2-14 Radio Unit RSU40/RSU60E

10

8

6

73

1

9

2 5

4

The interfaces of the two types of radio units are also the same, as described in the

following table.

Table 2-7 RSU40/RSU60E Interfaces Description

S.N. Label Interface Type/Connector

1 ANT2Interface to receive diversity

RF cable50 Ω DIN type connector

2 ANT1 Interface to transmit/receive 50 Ω DIN type connector


main diversity RF cable

3 RXinFrequency extension

interfaceSMA connector

4 RXoutFrequency extension

interfaceSMA connector

5 TX1 RX1BBU and RSU Interface /RSU

cascading interface

LC-type optical interface (IEC

874)

6 TX2 RX2BBU and RSU Interface /RSU

cascading interface

LC-type optical interface (IEC

874)

7 DEG 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 850M/900M/1800M/-

1900M/2100MHz/AWS. One RSU82 can process 2 transmitting paths and 4 receiving

paths and thus support 2 sectors in GSM/UMTS or 1 sector with MIMO 2*2 in HSPA+.

RSU82 can be configured as GSM only, UMTS only or mixed mode. When RSU82 is

used in GSM mode, it can support maximal 2*4 TRXs with TOC output power 2*80W, or

2*6 TRXs with TOC output power 2*60W. When used in UMTS mode, it can support

2*3C with TOC output power 2*60W on 2100MHz or 2*60W on other frequency bands.

In G/U dual-mode, RSU82 can support 2*(4 GSM TRXs + 1 UMTS carrier) or 2*(2 GSM

TRXs + 2 UMTS carriers).

When slotted in BS8906, RSU82 has 2*20W output power maximally restricted by

software.

RSU82 module consists of MCPA module, transceiver module, and duplex filter LNA.


Figure 2-15 Radio Unit RSU82

2

1

3

410

8

6

7

9

5

The interfaces of RSU82 are described in the following table.

Table 2-8 RSU82 Interfaces Description

S.N. Label Interface Type/Connector

1 ANT2Interface to receive

diversity RF cable50 Ω DIN type connector

2 ANT1

Interface to

transmit/receive main

diversity RF cable

50 Ω DIN type connector

3 ANT3

Interface to

transmit/receive main

diversity RF cable

50 Ω DIN type connector

4 ANT4Interface to receive

diversity RF cable50 Ω DIN type connector

5 TX1 RX1

BBU and RRU

Interface /RRU

cascading interface

LC-mode optical interface (IEC 874)

6 TX2 RX2

BBU and RRU

Interface /RRU

cascading interface

LC-mode optical interface (IEC 874)

7 DEGDebugging network

interfaceRJ45 socket

8 MONExternal equipment

interfaceDB15 socket


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

9 AISG AISG interface B9 socket

10 POWER Power supply interface -48V DC input

All the above RF modules can be inserted into BS8906 cabinet for different applications.

The following table gives a brief summary of all the RF modules.

Table 2-9 Brief List of RF Modules in BS8906:

Frequency (Hz) Radio Unit in BS8906

850M/900M/1900M RSU60E/GU: 80W, RSU82/GU:2*20W

1800M RSU60E/GU: 80W, RSU82/G: 2*20W

2.1G/AWS RSU40/U: 80W, RSU82/U: 2*20W

2.3 Software Architecture

The software system of ZXSDR BS8906 can be divided into operating support layer and

application layer.

Figure 2-16 ZXSDR BS8906 Software Structure


The operating support layer provides the functions of OSS, OAM, DBS, BRS, BRACS,

and SCS to serve different BTS modes.

OAM (Operating and Maintenance) is to provide the configuration, alarm and

performance measurement function.

DBS (Data Base 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 irrespective platform for running software and provides basic

functions like scheduling, timer, memory management, communication, sequencing

control, monitoring, alarming and logging.

Board Support Package (BSP) is the software closely connected with the board

hardware and supports RealTime 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,

and UMTS R99/R4/R5/R6/R7/R8/R9/R10, ZXSDR BS8906 supports G/U 850M, 900M,

1900M, GSM 1800M and UMTS 2100MHz/AWS in the cabinet.

With Um/Uu, Abis/Iub and O&M interfaces, ZXSDR BS8906 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

Moreover, main service functions of ZXSDR BS8700 are listed as follows:

GSM services:

GSM voice service (FR/EFR/HR/AMR/AMR-WB), GPRS, EDGE, EGPRS2-A of E-

EDGE

Supports BSS local switch, and the voice data frame will switch in BSS and will not

go to core network

UMTS services:

UMTS R99 service, HSPA (DL 14.4Mbps/UL 5.76Mbps/), HSPA+ (DL 86.4Mbps/UL

11.5Mbps)

MBMS service, including broadcast and multicast functions (PtP & PtM)

Supports 64QAM, MIMO, DC + 64QAM, MIMO + 64QAM for DL, MIMO + DC +

64QAM for DL

Supports 16QAM, A-RAKE technology, interference cancellation for UL


Advanced energy-saving features, such as dynamic power sharing, intelligent Cell

shutdown

Several measures to make cell range extended up to 240 Km

GSM/UMTS Uni-RAN services:

GU BBU cascading

GU Dynamic Power Sharing

GSM/UMTS IP Common Transmission

Intelligent Carrier Power On/Off


3 Technical Specifications

3.1 Physical Indices

Table 3-10 ZXSDR BS8906 Physical Indices

Item Indices

Cabinet appearance - Compact cabinet

Dimension (Height* Width * Depth):

670 * 410 * 525 mm

Weight/Rack: 55Kg (Full configuration)

Cabinet appearance - Standalone cabinet

Dimension (Height* Width * Depth):

670 * 300 * 525 mm

Weight/Rack: 35Kg (Full configuration)

Color Gray


3.2 Performance Indices

3.2.1 Operation Frequency Band

Table 3-11 ZXSDR BS8906 Operation Frequency Band

Item Indices

Frequency Band

G/U: 850M/900M/1900M/Hz

G: 1800MHz

U: 2100MHz/AWS

3.2.2 Capacity Indices

Table 3-12 ZXSDR BS8906 Capacity Indices (single cabinet)

Item Indices

Maximal Capacity

(Single Site)

60 TRXs (BBU capacity, can be expanded by

connecting external RRUs)

24CS (BBU capacity, can be expanded by

connecting external RRUs)

Maximal Capacity

(Single Cabinet)

GSM: 6 TRXs (RSU60E)

2*6 TRXs (RSU82)

UMTS: 4 CSs (RSU60E)

2*3 CSs (RSU82)

G/U Dual Mode:

RSU60E: 4 GSM TRXs + 1 UMTS Carrier or 2

GSM TRXs + 2 UMTS Carriers

RSU82: 2*(4 GSM TRXs + 1 UMTS Carrier) or

2*(2 GSM TRXs + 2 UMTS Carriers)

Maximal CE No.1536 CEs UL/1536 CEs DL (BPK*4)

768 CEs UL/768 CEs DL (BPK_s*4)

Maximal Throughput276 Mbps UL / 1000 Mbps DL* (BPK*4)

138 Mbps UL / 518 Mbps DL (BPK_s*4)

*: Limited to the maximal data throughput 1000Mbps of CC board.


The capacity can be expanded to be the same as that of B8200 with external RRUs.

3.2.3 Receiver Sensitivity

Table 3-13 ZXSDR BS8906 Receiver Sensitivity

Item Indices

Receiver sensitivity -113.5dBm@GSM single antenna

-126.5dBm@UMTS single antenna

-129.2dBm@UMTS double antennas

3.2.4 ToC Output Power

Table 3-14 ZXSDR BS8906 Output Power

Radio Unit Type ToC Output Power

RSU40 80W

RSU60EGMSK: 80W

UMTS: 80W

RSU82 2*20W

3.3 Power Indices

3.3.1 Power Requirements

Table 3-15 ZXSDR BS8906 Power Indices

Item Indices

Power supply, voltage range of variation-48V DC (-57V–-40V)

110V/220V AC (90V–290V)


3.3.2 Power Consumption

3.3.2.1 GSM Single Mode

RSU60Ecan support maximal 6 TRXs when used in GSM single mode. In baseband

unit, one UBPG board supports 12 GSM TRXs.

Table 3-16 Power Consumption of BS8906 in GSM Configuration (RSU60E, Unit: W,

20W/TRX)

Radio Module FrequencyPower

Supply

S4

Average Peak

RSU60E

900MHzDC 285 415

AC 315 460

1800MHzDC 295 440

AC 330 485

RSU82 can support maximal 2*6 TRXs in two sectors in GSM single mode.

Table 3-17 Power Consumption of BS8906 in GSM Configuration (RSU82, Unit: W,

20W/TRX)

Radio Module Frequency Power SupplyS2

Average Peak

RSU82

900MHzDC 360 445

AC 400 495

1800MHzDC 370 460

AC 410 510

3.3.2.2 UMTS Single Mode

RSU40, RSU60E or RSU82 can be used in UMTS mode.


Table 3-18 Power Consumption of BS8906 in UMTS Configuration (RSU60E, Unit: W,

20W/Carrier)


Average Peak

RSU40 2100MHzDC 200 260

AC 225 290

RSU60E 900MHzDC 225 275

AC 250 310

Table 3-19 Power Consumption of BS8906 in UMTS Configuration (RSU82, Unit: W,

20W/Carrier)


Average Peak

RSU82

900MHzDC 410 510

AC 455 565

2100MHzDC 305 400

AC 340 445

3.3.2.3 GSM and UMTS Dual Mode

RSU60E or RSU82 is used in GSM and UMTS dual-mode.

Table 3-20 Power Consumption of BS8906 in GSM and UMTS Dual Mode (RSU60E,

Unit: W, 15W/TRX, 20W/Carrier)


Supply

4 GSM TRXs +1 UMTS Carrier

Average Peak

RSU60E 900MHzDC 330 455

AC 365 505


Table 3-21 Power Consumption of BS8906 in GSM and UMTS Dual Mode (RSU82,

Unit: W, 20W/TRX, 20W/Carrier)


Supply

GSM S1+UMTS S1 (2 cells)

Average Peak

RSU82 900MHzDC 415 480

AC 460 535

3.4 Interface Indices

Table 3-22 ZXSDR BS8906 Interface Indices

Interface Item Indices Type Standard

Abis/Iub

E1/T18 pairs (LPU

configured)DB44 ITU G.703/G.704

STM-1 2 pairs(optional)SFP

(LC)

ITU G.957

ITU G.707

Ethernet

1 10M/100M/1000M

electrical

Auto-Negotiation.

Auto-MDI/MDIX

RJ45

10/100/1000BASE-T

IEEE 802.3

compatible

1 1000M optical

Or 1 100M optical

SFP

(LC)

1000BASE-LX IEEE

802.3 compatible

Or 100BASE-FX

IEEE 802.3

compatible

Cascading,

Debugging or

Local

Maintenance

Ethernet

10M/100M/1000M

electrical

Auto-Negotiation.

Auto-MDI/MDIX

RJ45

10/100/1000BASE-T

IEEE 802.3

compatible

Baseband/Radio CPRI 6 pairsSFP

(LC)CPRI 2.0

Electrical

Antenna AISG 1 Iuant AISG 2.0

Antenna Feeder ANT 2 DIN -


Clock GPS 1 SMAGPS TX/RX Port

NMEA 0183 V3.0

Environment

Monitoring

Interface

Dry

contacts

6 input interfaces, 2

bidirectional interfacesDB25 -

3.5 Environment Indices

Table 3-23 ZXSDR BS8906 Working Environment Indices

Item Indices

Temperature -40–55°C

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.

StorageIndoor pack depositing temperature: -45°C–70°C

Relative humidity:10%–98%

3.6 Electromagnetic Compatibility Indices

Table 3-24 ZXSDR BS8906 EMC Indices

Item Indices

International/National Standards

YD/T 1595.2-2007

ETSI EN 301 489-01

ETSI EN 301 489-23

ETSI EN 300 386–V1.3.2

(CISPR22) Class B

Directive 1999/5/EC (R&TTE)


3.7 Reliability Indices

Table 3-25 ZXSDR BS8906 Reliability Indices (DC Power Supply)

Item Indices

MTBF ≥147,000 hours

MTTR 0.5 hour

Availability index ≥99.999660%

Down duration <1.788min/year

Table 3-26 ZXSDR BS8906 Reliability Indices (AC Power Supply)

Item Indices

MTBF ≥126,000 hours

MTTR 0.5 hour

Availability index ≥99.999603%

Down duration <2.086min/year


4 Configurations

4.1 Baseband Unit Configuration

The baseband unit ZXSDR B8200 is composed of these boards: CC, baseband

processing boards, FS, SA, PM, FAM, etc. Configuration principles of these boards are

described in the following table:

Table 4-27 ZXSDR B8200 Configuration

Board Configuration Principles

CC1 board as default

Max 2 boards for 1+1 backup

Baseband

Processing

Board

UBPG12 GSM TRXs/board

Max 5 boards

UBPG212 GSM TRXs/board, with 3 pairs of CPRI interfaces each

Max 3 boards

BPK

6 UMTS CSs/board, with 384CEs UL/384CEs DL

simultaneously. 6*11.5 Mbps UL and 6*43.2 Mbps DL

simultaneously.

Maximal 4 boards can be configured.

BPK_s

6 UMTS CSs/board, with 192CEs UL/192CEs DL

simultaneously. 34.5 Mbps UL and 129.6 Mbps DL

simultaneously.

Maximal 4 boards can be configured.

FS

6 pairs of CPRI interfaces/board, optical or electrical

1 board by default for GSM mode with UBPG, UMTS mode or

G/U dual-mode. Not required for GSM mode with UBPG2.

Max 2 boards

Interface

BoardSA

6+2 dry contacts and 8 pairs of E1/T1 each

Default

SE 6+2 dry contacts and 8 pairs of E1/T1 each


Configured only when the requirements of dry contacts or

E1/T1 exceed SA capacity

TAM6 DC outputs with customized voltage each

Configured for tower amplifier control when TMA is needed

PM1 board as default.

Max 2 boards for 1+1 backup

FAM Default

4.2 Radio Unit Configuration

The compact style of ZXSDR BS8906 can be equipped with 1 RSU module. It can be

configured as GSM or UMTS or G/U dual-mode via software. By choosing different

frequencies and software configuration, ZXSDR BS8906 can support various

configurations.

Table 4-28 Radio Unit Configuration

RSU Configuration Principles

RSU40 UMTS single mode: Maximal 4 carriers

RSU60E

GSM single mode: Maximal 6 TRXs

UMTS single mode: Maximal 4 Carriers

GSM/UMTS dual-mode: Maximal 4 TRXs+1 Carrier or 2 TRXs+2

Carriers

RSU82

GSM single mode: Maximal 2*6 TRXs

UMTS single mode: Maximal 2*3 Carriers

GSM/UMTS dual-mode: Maximal 2*(4 TRXs+1 Carrier) or 2*(2 TRXs+2

Carriers)


4.3 GSM Single Mode Configuration

4.3.1 RSU60E Configuration

RSU60E is based on multi-carrier technology. In GSM mode, it can support 1 to 6 TRXs.

For baseband part, one UBPG (or UBPG2) board can support 12 GSM TRXs.

Table 4-29 ZXSDR BS8906 Configuration S6 in GSM Single Mode (RSU60E)

Site Type No. of RSU60ENo. of

UBPG/UBPG2No. of Rack

S6 1 1 1

4.3.2 RSU82 Configuration

The maximal output power of RSU82 is 2*20W in BS8906, and can be configured

with two sectors.

Table 4-30 ZXSDR BS8906 Configuration S11 in GSM Single Mode (RSU82)



S11 1 1 1

4.4 UMTS Single Mode Configuration


The maximal output power of RSU40 is 60W in UMTS on 2100MHz.One RSU40

supports 3 carriers when it ensures the 20W output power for each carrier. For

baseband unit, one BPK or BPK_s can support 6 UMTS CSs.


Table 4-31 ZXSDR BS8906 Configuration in UMTS Single Mode (RSU40)



S3 1 1 1

4.4.2 RSU60E Configuration

RSU60E maximal output power is 80W in UMTS on 900/1800MHz. One RSU60E

supports 4 carriers when it ensures the 20W output power for each carrier. For

baseband part, one BPK or BPK_s board can support 6 UMTS CSs.

Table 4-32 ZXSDR BS8906 Configuration S4 in UMTS Single Mode (RSU60E)

Site Type No. of RSU60E No. of BPK/BPK_s No. of Rack

S4 1 1 1


The maximal output power of RSU82 in BS906 is 2*20W, and can be configured

with two sectors.

Table 4-33 ZXSDR BS8906 Configuration S11 in UMTS Single Mode (RSU82)

Site Type No. of RSU82 No. of BPK/BPK_s No. of Rack

S11 1 1 1

4.5 GSM/UMTS Dual-Mode Configuration

BS8906 supports GSM and UMTS dual-mode networking in the same spectrum. In this

scenario, if RSU60E is used, one RSU60E supports 4 GSM TRXs + 1 UMTS carrier or 2

GSM TRXs + 2 UMTS carriers in maximally.


Table 4-34 ZXSDR BS8906 Configuration in G/U Dual-Mode (RSU60E)

Site TypeNo. of

RSU60E

No. of

UBPG/UBPG2

No. of

BPK/BPK_sNo. of Rack

G:S4+U:S1 1 1 1 1

G: S2+U:S2 1 1 1 1

If configured with RSU82, two sectors can be supported simutaneously.

Besides that of the RSU module in the cabinet, BS8906 can expand the capacity up to

60 GSM TRXs or 24 UMTS CSs, or 36 GSM TRXs + 12 UMTS CSs, when connecting

with RRUs.


5 Abbreviations

Abbreviations Full Characteristics

3GPP 3rd Generation Partnership Project

64QAM 64 Grade Quadrate Amplitude Modulation

AGPS Assisted GPS

AMR Adaptive Multi Rate

BBS Base Band Sub-system

BBU Base Band processing Unit

BITS Building Integrated Timing Supply

BPK Base band Processing Board Type K for UMTS

BPK_s Base band Processing Board Type K_s for UMTS

BRACS Barrier Access Control Sub-system

BRS Barrier 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 Carrier Sector

DBS Data Base Sub-system

DL Down Link

DTX Discontinuous transmission

EDGE Enhanced Data rates for GSM Evolution

E-EDGE Enhanced EDGE


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

LMT Local Maintenance Terminal

MicroTCA Micro Telecommunications Computing Architecture

MS/UE Mobile Station/User Equipment

MTBF Mean Time Between Failures

MTTR Mean Time To Recovery

NBAP Node B Application Part

NM NetNumen

NMS Network Management System

NOP Network Optimization & Planning

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

RCS Radio Control Sub-system

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

SNMP Simple Network Management Protocol

TA Time Advance

TNS Transport Network Sub-system

UBPG Universal Base band Processing 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


gu der zxsdr bs8906 product description ur11.2 v1.02 20120525

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