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ZXSDR BS8700System Description

Version 4.00.30

ZTE CORPORATIONNO. 55, Hi-tech Road South, ShenZhen, P.R.ChinaPostcode: 518057Tel: (86) 755 26771900Fax: (86) 755 26770801URL: http://ensupport.zte.com.cnE-mail: [email protected]

LEGAL INFORMATION

Copyright © 2010 ZTE CORPORATION.

The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution ofthis document or any portion of this document, in any form by any means, without the prior written consent of ZTE CORPO-RATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality obligations.

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ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications covering the subjectmatter of this document. Except as expressly provided in any written license between ZTE CORPORATION and its licensee,the user of this document shall not acquire any license to the subject matter herein.

ZTE CORPORATION reserves the right to upgrade or make technical change to this product without further notice.

Users may visit ZTE technical support website http://ensupport.zte.com.cn to inquire related information.

The ultimate right to interpret this product resides in ZTE CORPORATION.

Revision History

Revision No. Revision Date Revision Reason

R1.0 20100430 First edition

Serial Number: SJ-20100426162420-002

Contents

About This Manual............................................. I

Product Description...........................................1Overview....................................................................... 1

Overall Appearance......................................................... 1

BS8700 Position in Network ............................................. 2

Equipment Compositions ................................................. 3

Product Functionality....................................................... 3

Product Features ............................................................ 5

Networking Application.................................................... 6

Brief Introduction to Networking Application................... 6

Networking with RRU .................................................. 6

Networking with BSC .................................................. 8

Obtained International Certifications ................................10

Equipment Indices .........................................................10

Dimensions and Weight ..............................................10

Power Consumption ...................................................10

Grounding Requirements ............................................11

Temperature and Humidity Requirements......................11

Power Requirements ..................................................12

Reliability Indices ......................................................12

Capacity and Technical Indices in GSM System ..............12

Capacity and Technical Indices in UMTS System.............13

Capacity and Technical Indices in Dual-Mode

System ............................................................13

Standards Compliance....................................................13

Observed General Standards.......................................13

Observed EMC Standards............................................15

Observed Environment Standards ................................16

Declaration of RoHS Compliance ......................................18

System Description .........................................21System Structure ..........................................................21

Confidential and Proprietary Information of ZTE CORPORATION I

ZXSDR BS8700 System Description

Hardware System Structure ........................................21

Software System Structure .........................................23

Working Principles .........................................................25

Control Data Flow......................................................25

Service Data Flow......................................................25

Clock System............................................................26

Inner Communication Network ....................................26

Master/Slave Design ..................................................27

Hardware Configuration..................................................27

Configuration Principles ..............................................27

Maximum Capacity Configured in GSM System .............27

Maximum Capacity Configured in UMTS System.............28

Typical Configurations in Dual Mode System ..................28

System Software Configuration........................................28

System Interfaces .........................................................29

Brief Introduction to System Interface..........................29

External Interface Location .........................................30

Abis Interface ...........................................................33

E1/T1 Interface .........................................................34

GE/FE Interface.........................................................34

Baseband-RF interface ...............................................35

GPS Interface ...........................................................36

Cascading Ethernet Interface ......................................36

LMT Interface............................................................36

Operation and Maintenance Interface ...........................36

Software Description......................................................37

Software Introduction ................................................37

Related NMS Software................................................38

LMT Software ...................................................38

NetNumen™ M31 Software.................................38

Service Board Software of BS8700...............................40

Figures ............................................................41

Tables .............................................................43

Glossary ..........................................................45

II Confidential and Proprietary Information of ZTE CORPORATION

About This Manual

Purpose BS8700 is an indoor GSM/UMTS dual-mode baseband pool inde-pendently developed by ZTE. It can compose a BTS/NodeB in com-bination with various ZTE RRU models. It performs the functions ofa GSM single mode, UMTS single mode, or GSM/UMTS dual modebase station. Additionally, it implements radio transmission in itscoverage area, controls radio channels, and communicates withBSC/RNC. BS8700 mainly implements channel processing.

This manual involves the product description and system descrip-tion of BS8700, aiming to help users familiarize themselves withthe working principles of this product.

What Is in ThisManual

This manual has the following chapters:

Chapter Summary

Chapter1, ProductDescription

Describes BS8700 composition, networkingapplication, equipment indices, and observedstandards.

Chapter2, SystemDescription

Describes BS8700 system structure, workingprinciples, hardware configurations, systeminterfaces, and software.

Confidential and Proprietary Information of ZTE CORPORATION I


This page is intentionally blank.

II Confidential and Proprietary Information of ZTE CORPORATION

C h a p t e r 1

Product Description

Table of ContentsOverview........................................................................... 1Overall Appearance............................................................. 1BS8700 Position in Network ................................................. 2Equipment Compositions ..................................................... 3Product Functionality .......................................................... 3Product Features ................................................................ 5Networking Application........................................................ 6Obtained International Certifications ....................................10Equipment Indices .............................................................10Standards Compliance........................................................13Declaration of RoHS Compliance ..........................................18

OverviewZXSDR BS8700 consists of BBU (B8200) and RRU (R8860). 8200is an indoor GSM/UMTS dual-mode BBU product. R8860 is an out-door GSM/UMTS dual-mode remote radio unit. B8200 and R8600work in cooperation to implement BTS/Node B functions.

BS8700 supports GSM (850 MHz/900 MHz/1800 MHz/1900 MHz)and UMTS (850 MHz/900 MHz/1800 MHz/1900 MHz). It can alsoindependently serve as a GSM or UMTS macro base station.

Overall AppearanceFigure 1 shows the appearance of BS8700.

Confidential and Proprietary Information of ZTE CORPORATION 1


FIGURE 1 OVERALL APPEARANCE

� B8200 is a standard 19″2U cabinet.

� R8860 is a outdoor unit, connecting with B8200 through fibers.

BS8700 Position in NetworkUMTS/GSM EDGE network is as shown in Figure 2. In UMTS andGSM EDGE radio access networks, BTS or Node B can be dividedinto BBU and RRU. B8200 serves as the BBU and R8860 serves asthe RRU.

FIGURE 2 UMTS/GSM EDGE NETWORK STRUCTURE

2 Confidential and Proprietary Information of ZTE CORPORATION

Chapter 1 Product Description

Equipment CompositionsB8200 B8200 is composed of shelved plugged with boards/modules, as

shown in Figure 3.

FIGURE 3 BS8700 COMPOSITIONS

The boards/modules include:

� Control and clock module (CC)

� Network switching module (FS)

� Power module (PM)

� Site alarm module (SA)

� Fan module (FA)

� Baseband Processing Board Type C (BPC)

� Universal Baseband Processing Board for GSM (UBPG)

� Environment monitoring expanded module (SE)

R8860 R8860 is an integrated cabinet accommodating dual-mode trans-ceiver board, PM unit, duplex filtering module, interface switchingboard, interface protection board, and power module.

Product FunctionalityBasic functions BS8700 works with RRU, performing the following functions on

Um/Uu, Abis/Iub, and O&M:

� Implementing MS/UE access and radio link transmission onUm/Uu interface, including:

� Up/Down frequency conversion and modulation/demodula-tion

� Channel coding/decoding

� Channel multiplexing/demultiplexing

� Measurement and report

� Power control



� Transmission diversity

� Reception diversity

� Calibration

� Synchronization

� BS8700 connects with BSC/RNC through Abis/Iub interface,performing the following functions:

� Cell management

� Reporting BTS/Node B measurement information

� Broadcasting system information

� Performing the access control, mobility management, radioresource management, and control commands delivered byRNC

� Dealing with FP

� On O&M interface, BS8700 provides the system managementfunctions, including:

� Configuration management

� Fault management

� State detection

� System monitoring

In addition, BS8700 provides the following functions:

� Supporting GSM Phase I/GSM Phase II/GSM Phase II+ stan-dards

� Supporting the WCDMA R99/R4/R5/R6/R7 standards

� Supporting GPRS CS1~CS4 and EDGE MCS1~MCS9, and sup-porting dynamic channel coding based on monitoring and mea-surement results

� Supporting FHS

� Supporting discontinuous transmission

� Supporting Time Advance (TA) value calculation

� Supporting common BCCH

Service Functions BS8700 supports the following services

� GSM & EDGE:

� FR: Full rate voice service

� EFR: Enhanced full rate voice service

� HR: Half rate voice service

� AMR: Adaptive multi-rate voice service

� F9.6: 9.6 Kbps full-rate data service

� GPRS/EDGE

� Positioning service

� Positioning service of Cell ID

� Positioning service of Cell ID + RTT



� AGPS positioning service

� R99 services

� QPSK supported by uplink and downlink with the maximumspeed of 384 kbps

� CS domain: AMR voice service (supporting eight ratetypes) and CS 64 kbps service

� PS domain: UL/DL 64 kbps, UL/DL 128 kbps, and UL/DL384 kbps service

� Hybrid services: CS domain (AMR 12.2kbps/CS 64kbps)+ PS domain (UL/DL 64kbps, UL/DL 128 kbps, and UL/DL384kbps)

� HSDPA services:

� 16 QAM supported by downlink with the maximum speedof 14.4 Mbps

� 64 QAM supported by downlink with the maximum speedof 21.6 Mbps

� Supporting 15 code channels at most

� Supporting HSDPA and R99 services on different carriers

� Supporting co-frequency handover, hetero-frequencyhandvoer, and handover between HSDPA and R99

� Supporting combined services

� Supporting the streaming service

� HSUPA services:

� QPSK supported by uplink with the maximum speed of(Category 5 HSUPA device) 2 Mbps

� QPSK supported by uplink with the maximum speed of(Category 6 HSUPA device) 5.74 Mbps

� MBMS services:

� Supporting the broadcasting and multicasting services, andthe multicasting function supports the P2P (Point-to-Point)mode and P2Mp (Point-to-Multi-Point) mode.

� Supports mobility management

� Supporting stream and background MBMS service

Product Features� It provides ATM/IP dual-mode protocol stack, and supports Hy-

brid IP and All IP networking.

� It supports WCDMA/GSM dual-mode configuration.

� Under WCDMA single-mode configuration, it supports192CE/6CS and provides a 30CS baseband processingcapacity at maximum.



� Under GSM single-mode configuration, it provides a base-band processing capability of 60 carrier frequencies.

� It supports smooth upgrade towards EDGE/HSPA+/LTE.

� It supports HSPA. The downlink supports 64QAM and themaximum rate is 21.098 Mbps (MAC layer). The uplink sup-ports QPSK and the maximum rate (Category 6 terminal)(MAClayer).

� It supports MBMS and 4x256kbps / 8x128kbps / 16x64kbpsaccess modes.

� It enriches Iub/Abis interface types by providing multiple inter-faces such as E1/T1, FE, and GE to meet different networkingrequirements under various transmission conditions.

� It provides 12 pairs of 1.25 G baseband-RF interfaces.

� It supports WCDMA R99, R4, R5, R6, and R7 versions, andsupports R8 after evolution.

� It supports GSM Phase I/Phase II/Phase II + versions.

Networking ApplicationBrief Introduction to NetworkingApplication

BS8700 can form the network with BSC or with RRU.

ZXSDR B8200 GU360 can form the network with BSC in the fol-lowing modes:

� Star networking

� Chain networking

ZXSDR B8200 GU360 can form the network with RRU in the fol-lowing modes:

� Star networking


� Ring networking

Networking with RRU

The networking with RRU can be:

� Star networking


� Ring networking



Star networking In this networking mode, optical fibers are used for the transmis-sion. Figure 4 shows the networking diagram. B8200 can form astar network with at most 12 RRUs.

FIGURE 4 STAR NETWORKING

Chain networking In this networking mode, RRU connects with BBU or cascadedRRUs through fiber interfaces. Figure 5 shows the networking di-agram. A maximum of four RRUs can be cascaded in the chainnetworking of B8200. The chain networking mode is suitable forzonal sparsely-populated areas. This mode can save a large num-ber of transmission equipment.

FIGURE 5 CHAIN NETWORKING



Ring networking Figure 6 shows the ring networking mode. In the ring networking,a RRU is connected with a BBU or other RRUs through fiber inter-faces.

FIGURE 6 RING NETWORKING

Networking with BSC

The networking of BS8700 through Abis interface can be:

� Star networking


Star networking BS8700 can form a star network with BSC on Abis interface, asshown in Figure 7.



FIGURE 7 STAR NETWORKING AT ABIS INTERFACE

Chain networking BS8700 can form a chain network with lower-level BTSs via E1/T1pm Abis interface. It supports at most five levels of the cascading,as shown in Figure 8.

FIGURE 8 CHAIN NETWORKING AT ABIS INTERFACE



Obtained InternationalCertificationsBS8700 has obtained the following international certifications:

� CE certification

� UL certification

� FCC certification

Equipment IndicesDimensions and Weight

� The dimensions of B8200: 88.4 mm (H)× 482.6 mm (W) ×197mm (D)

� The weight of B8200: ≤ 8.75 kg

� The dimensions of R8860: 500 mm (H)× 320 mm (W) ×172mm (D)

� The weight of R8860: ≤ 22.5 kg

Power Consumption

Table 1 shows the power consumption of a typically configuredBS8700.

TABLE 1 POWER CONSUMPTION IN TYPICAL CONFIGURATION

Radio Mode ConfigurationPower Consump-tion (800 W/900MHz)

B8200 6CS/1 BPC 80 W

B8200 12CS/2 BPC 115 W

B8200 18CS/3 BPC 145 W

B8200 24CS/4 BPC 180 W

UMTS 1C/TOC 20W 155 W



UMTS single mode



Radio Mode ConfigurationPower Consump-tion (800 W/900MHz)


B8200 12TRX/1 UBPG 60 W

B8200 24TRX/2 UBPG 75 W

B8200 36TRX/3 UBPG 90 W

B8200 48TRX/4 UBPG 105 W

B8200 60TRX/5 UBPG 120 W

GSM/S1 330 W

GSM/S2 250 W

GSM/S3 220 W

GSM/S4 210 W

GSM/S5 205 W

GSM single mode

GSM/S6 200 W

6CS+12TRX/1BPC+1UBPG 95 W

12CS+24TRX/2BPC+2UBPG 145 W

GSM S1 + 1 UMTS CS 300 W



GSM/UMTS dual mode


Grounding Requirements

The grounding resistance should be equal to or less than 5 Ω. Inthe areas where annual lightning days are less than 20 days, thegrounding resistance can be less than 10 Ω.

Temperature and HumidityRequirements

Table 2 shows the temperature and humidity requirements for nor-mal operation of BS8700.



TABLE 2 TEMPERATURE AND HUMIDITY REQUIREMENTS

Item Index

B8200 -20℃ ~ +55℃Environmenttemperature

R8860 -40℃ ~ +55℃

B8200 5% ~ 95%Environmenthumidity

R8860 5% ~ 100%

Power Requirements

� Power requirements for normal operation of B8200: –48 V DC,allowed voltage range: -57 V DC –40 V DC.

� Power requirements for normal operation of R8860: –48 V DC,allowed voltage range: -57 V DC -37 V DC.

Reliability Indices

� MTBF: B8200≥233,000 hours, R8860≥380,000 hours

� MTTR: 0.5 hour

� Availability ratio: B8200≥99.999785%, R8860≥99.999868%

� Service interruption time: B8200≤1.128 minutes/year,R8860: ≤0.692 minute/year

Capacity and Technical Indices inGSM System

In GSM system, the capacity and technical indices of BS8700 areas shown in Table 3.

TABLE 3 CAPACITY AND TECHNICAL INDICES IN GSM SYSTEM

Item Index

Maximum number of carrierssupported

60



Capacity and Technical Indices inUMTS System

In UMTS system, the capacity and technical indices of BS8700 areas shown in Table 4.

TABLE 4 CAPACITY AND TECHNICAL INDICES IN UMTS SYSTEM

Item Index

Maximum number of supportedcarrier sectors

30 CS

Maximum number of supportedpure voice channels

960

Maximum processing capacity(Erl)

951

Maximum number of channels inone cell

123

Capacity and Technical Indices inDual-Mode System

In dual-mode system of UMTS and GSM, the capacity and technicalindices of BS8700 are as shown in Table 5.

TABLE 5 CAPACITY AND TECHNICAL INDICES IN DUAL-MODE SYSTEM

Item Index

Capacity in GSM and UMTSdual-mode

GSM 36 carriers + UMTS 12CS

Standards ComplianceObserved General Standards

The observed general standards of BS8700 are as shown in Table6.



TABLE 6 OBSERVED GENERAL STANDARDS

Standard Name

3GPP 3GPP Release6 March. 2006 series standards

RoHS signaling 2002_95_EC DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT ANDOF THE COUNCIL of 27 January 2003 on the restriction of theuse of certain hazardous substances in electrical and electronicequipment

WEEE signaling 2002_96_EC DIRECTIVE 2002/96/EC OF THE EUROPEAN PARLIAMENT ANDOF THE COUNCIL of 27 January 2003 on waste electrical andelectronic equipment (WEEE)

ETSI EN 301 489-01 V1.5.1 Electromagnetic compatibility and Radio spectrum Matters(ERM); ElectroMagnetic Compatibility (EMC) standard forradio equipment and services; Part 1: Common technicalrequirements

ETSI EN 301 489-23 V1.2.1 Electromagnetic compatibility and Radio spectrum Matters(ERM); ElectroMagnetic Compatibility (EMC) standard forradio equipment and services; Part 23: Specific conditionsfor IMT-2000 CDMA Direct Spread (UTRA) Base Station (BS)radio repeater and ancillary equipment

ETSI EN 301 489-26 V2.2.1 Electromagnetic compatibility and Radio spectrum Matters(ERM); ElectroMagnetic Compatibility (EMC) standard forradio equipment and services; Part26: Specific conditionsfor IMT-2000 CDMA Multi-carrier Base Stations and ancillaryequipment

EN60950-1 Safety of information technology equipment

EN50385: (2002-08) Product standard to demonstrate the compliance of radiobase statios and fixed terminal stations for wirelesstelecommunication systems with the baseic restrictions or thereference levels related to human exposure to radio frequencyelectromagnetic fields (110MHz-40GHz)-General public

ETSI EN 301 908-01 V1.1.1 Electromagnetic compatibility and Radio spectrum Matters(ERM); Base Stations (BS) and User Equipment (UE) forIMT-2000 Third Generation cellular networks; Part 1:Harmonized EN for IMT-2000 introduction and commonrequirements of article 3.2 of the R&TTE Directive

ETSI EN 301 908-04 V1.1.1 Electromagnetic compatibility and Radio spectrum Matters(ERM); Base Stations (BS) and User Equipment (UE) forIMT-2000 Third Generation cellular networks; Part 4:Harmonized EN for IMT-2000 CDMA Multi-Carrier (cdma2000)UE covering the essential requirements of article 3.2 of theR&TTE Directive

EN 50385 Product standard to demonstrate the compliance of radiobase statios and fixed terminal stations for wirelesstelecommunication systems with the baseic restrictions or thereference levels related to human exposure to radio frequencyelectromagnetic fields 110MHz-40GHz-General public

ITU-T G.707/Y.1322 Network node interface for the synchronous digital hierarchy(SDH)

ITU-T G.703 Physical/electrical characteristics of hierarchical digitalinterfaces



Standard Name

ITU-T G.704 Synchronous frame structures used at 1544 6312 2048 8448and 44 736 kbit/s hierarchical levels

T1.102-1993 Digital Hierarchy - Electrical Interfaces

T1.403-1999 Network and Customer Installation Interfaces - DS1 - ElectricalInterface

ITU-T I.432.2 155 520 kbit/s and 622 080 kbit/s operation

ITU-T I.432.3 B-ISDN user-network interface – Physical layer specification:1544 kbit/s and 2048 kbits operation

ITU-T G.957 Optical interfaces for equipments and systems relating to thesynchronous digital hierarchy

T1.105-1995 Synchronous Optical Network (SONET) - Basic Descriptionincluding Multiplex Structure, Rates and Formats

ANSI INCITS 352 Information Technology Fibre Channel Physical Interfaces(FC-PI)

IEC 60721 Classification of environmental parameters and their severitiesof electric and electronic products

ISO 3744 Acoustics - Determination of sound power levels of noisesources using sound pressure - Engineering method in anessentially free field over a reflecting plane

ETS 300 753 Equipment Engineering (EE) Acousstic Noise Emitted byTelecommunications Equipment

EN 50385 Product standard to demonstrate the compliance of radiobase statios and fixed terminal stations for wirelesstelecommunication systems with the baseic restrictions or thereference levels related to human exposure to radio frequencyelectromagnetic fields 110MHz-40GHz-General public

AISG:V 1.1,V2.1 Control interface for antenna line devices

PIGMG Micro Telecommunication Computing Architecture BaseSpecification RC1.0 2006

Observed EMC Standards

The observed EMC standards of BS8700 are as shown in Table 7.



TABLE 7 OBSERVED EMC STANDARDS

Standard Name

ETSI EN 301489-01

Electromagnetic compatibility and Radiospectrum Matters (ERM); ElectroMagneticCompatibility (EMC) standard for radioequipment and services; Part 1: Commontechnical requirements

ETSI EN 301489-23

Electromagnetic compatibility and Radiospectrum Matters (ERM); ElectroMagneticCompatibility (EMC) standard for radioequipment and services; Part 23: Specificconditions for IMT-2000 CDMA Direct Spread(UTRA) Base Station (BS) radio repeater andancillary equipment

ETSI EN 301489-26

Electromagnetic compatibility and Radiospectrum Matters (ERM); ElectroMagneticCompatibility (EMC) standard for radioequipment and services; Part26: Specificconditions for IMT-2000 CDMA Multi-carrier BaseStations and ancillary equipment

Observed Environment Standards

Abstract The environment standards observed by BS8700 involves:

� Operation environment

� Storage environment

� Whole-equipment noise

OperationEnvironment

The waterproof and dustproof level of B8200 is IP20. The water-proof and dustproof level of R8860 is IP65.

The requirements for normal operation in an environment withweather protection and without temperature control are as shownin Table 8. BS8700 is against humid, heat, mold, salt, smog, andcorrosion. When operating in such environment, the product doesnot bear any damaged marks and rusty spots on the surface.

TABLE 8 OPERATION ENVIRONMENT

Working Environment Weather Protection withoutTemperature Control (Indoor)

Temperature changingratio

℃/min 0.5

Low air pressure kPa 70

High air pressure kPa 106

Solar radiation W/m2 700

Heat radiation W/m2 600

Weatherand Envi-ronmentCondition



Working Environment Weather Protection withoutTemperature Control (Indoor)

Surrounding air flowspeed

M/s 5

Ice and frost condition -- Yes

Precipitation condition(rain, snow, hail)

-- No

Ice and frost condition -- Yes

Water except the rains -- Water dripping

Biological environmental condition 3B2

Chemical active substance condition 3C2 (3C1)

Plants -- Mold and epiphyte

mg/m3 0.3SO2

cm3/m3 0.11

Animals -- Rodent animals and other harmful animals(except the termites)

Biologicalandchemicalcondition

Salty smog -- Yes

Mechanical active substance conditions (S) 3S3

Sand mg/m3 300

Dust (floating) mg/m3 0.4

Mechani-cal activesubstanceconditions

Dust (sediment) mg/m2.h 15

Mechani-cal envi-ronmentalcondition

Earthquake resistance Earth-quake in-tensity

8

The standards that the environmental conditions shown in Table 8comply with are:

� Section "Class 3.3: Not temperature-controlled locations" inETSI EN 300 019-1-3 "Environmental Engineering (EE); Envi-ronmental conditions and environmental tests for telecommu-nications equipment; Part 1-3: Classification of environmentalconditions; Stationary use at weatherprotected locations"

Storageenvironment

BS8700 can operate normally after being stored with the packagefor 180 days in the condition as shown in Table 9.



TABLE 9 STORAGE ENVIRONMENT

Application Environment Condition Storage (withWeather Protectionand with Package)

Low temperature ℃ -45

High temperature ℃ 70

B8200 relativehumidity

10%90%

R8860 relativehumidity

5%98%

Temperaturechanging ratio

℃/min 1

Low air pressure kPa 70

High air pressure kPa 106

Solar radiation W/m2 1120

Weather andEnvironmentCondition

Ice and frost condition Yes

The standards that the environmental conditions shown in Table 9comply with are:

� Section 4.2 "Class 1.2: Weatherprotected, not temperature-controlled storage locations" in ETSI EN 300 019-1-1 "Environ-mental Engineering (EE); Environmental conditions and envi-ronmental tests for telecommunications equipment; Part 1-1:Classification of environmental conditions; Storage"

Whole-EquipmentNoise

In case of full power output and environmental temperature of43˚C ± 2˚C, the noise level, Lwad, of the whole equipment doesnot exceed 6.8 Bels (equal to 68 db).

The observed standards are:

� ETS 300 753 "Equipment Engineering (EE)Acousstic NoiseEmitted by Telecommunications Equipment"

Declaration of RoHSComplianceTo minimize the environmental impact and take more responsibil-ity to the earth we live, this document shall serve as formal dec-laration that BS8700 manufactured by ZTE CORPORATION are incompliance with the SJ/T11364-2006 - RoHS (Restriction of Haz-ardous Substances) with respect to the following substances.

This declaration is issued based on our current level of knowledge.Since conditions of use are outside our control, ZTE CORPORATION



makes no warranties, express or implied, and assumes no liabilityin connection with the use of this information.

TABLE 10 DECLARATION OF ROHS COMPLIANCE FOR BS8700 MANUFACTURED BY ZTECORPORATION

Hazardous Substance

Cd Cr6+ PBB PBDE

Parts

PB HG

(Cd) (Cr6+) (PBB) (PBDE)

Compo-nents

© © © © © ©

Cables andaccessories

© © © © © ©

Boards © © © © © ©

Usermanuals

© © © © © ©

Packingmaterials

© © © © © ©

©: Indicating that the percentage that this hazardous substance occupies in all substances ofthis part does not exceed the value prescribed in SJ/T11363-2006 standards.

×: Indicating that the percentage that this hazardous substance occupies in all substances ofthis part exceeds the value prescribed in SJ/T11363-2006 standards.

Note:

� This table indicates that the products of the above models manufactured by ZTECORPORATION may include these substances but the information will update with thedevelopment of the technologies.

� ZTE CORPORATION reserves the right of final interpretation for the part definitions.

The following label indicates the environmental life expectation operation of the product of thismodel. Some replaceable parts may bear labels indicating different life expectation operations(such as, the battery unit module). This environmental life expectation operation is onlyapplicable when the product operates under the conditions prescribed in the product manual.


C h a p t e r 2

System Description

Table of ContentsSystem Structure ..............................................................21Working Principles .............................................................25Hardware Configuration......................................................27System Software Configuration ...........................................28System Interfaces .............................................................29Software Description..........................................................37

System StructureHardware System Structure

The modules of BS8700 include: CC, Fabric Switch module (FS),Baseband Processing board type C (BPC), Universal Baseband Pro-cessing board for GSM (UBPG), Power Module (PM), Site Alarmmodule (SA), Surrounding Monitoring Expansion module (SE, andRemote Radio Unit (RRU). The relationship between the modulesis shown in Figure 9.



FIGURE 9 RELATIONSHIP BETWEEN MODULES

CC Functions � Providing the system clock

� Providing the function of Abis/Iub interface

� Providing the function of Ethernet switching, providing the sig-naling stream and media stream switching platform

� Managing the shelf.

FS Functions � Switching the baseband IQ data

� Providing the interface between BBU and RRU

UBPG Functions � Modulating the baseband and the DL can deal with the servicesof at most twelve carriers

� Demodulating the baseband and the UL can deal with the ser-vices of at most twelve carriers

� Supporting the baseband frequency hopping

� Supporting the static and dynamic power control

BPC Functions � Coding/Multiplexing the DL service data, matching the rate,mapping the channels, scrambling the spread spectrum,weighting the power, and synthesizing the channels

� Implementing the RAKE reception of the uplink service data,coding the channels, and sending the data to Iub interface forprocessing

� Synchronizing the radio link and dealing with the transmissionframes

� Power control

� Dealing with the soft handover

� Measurement


Chapter 2 System Description

SA Functions � Providing the alarm monitoring and rotate speed controlling ofup to nine fans

� Responsible for the signal monitoring and the interface light-ning protection of the home shelf

� Providing six input dry contact interfaces and two input/outputdry contact interfaces.

� Providing eight E1/T1 interfaces

SE Functions � Responsible for the signal monitoring and the interface light-ning protection of the home shelf

� Providing extended full-duplex RS232 channel and RS485channel for external monitoring device

� Providing six input dry contact interfaces and two input/outputdry contact interfaces.

� Providing eight E1/T1 interfaces

PM Functions � Providing the capacity of 16 channels + 12 V load power sup-plies

� Providing the capacity of 16 channels + 3.3 V managementpower supply

� Providing EMMC management function

� Performing input overvoltage and undervoltage measurementand protection

� Performing output over-current protection and managing theload power supply

RRU Functions � With Um/Uu interface, R8860 accomplishes terminal accessand RF link transmission, including: RF signal processing,channel coding and decoding, channel multiplexing andde-multiplexing, measurement and reporting, power control,transmission diversity, receiving diversity, calibration, andsynchronization.

� R8860 connects with B8200 through the optical interface,which performs such functions as IQ data transmission,measurement information reporting, radio frequency functionconfiguration, and clock synchronization.

Software System Structure

Vertically, BS8700 software system consists of support softwarelayer and service software layer, as shown in Figure 10.



FIGURE 10 SOFTWARE SYSTEM STRUCTURE

The operation and application supporting platform provides thefunctions of OSS, OAM, DBS, BRS, BRACS, and SCS. These func-tions serve for BS under different system.

� OSS provides the software operation support platform whichis independent of hardware, such as re-scheduling, timer,memory management, inter-board communication for differ-ent software subsystems, system platform monitoring, alarmmonitoring, logs, and debugging printing.

� OAM provides integrated NM functions such as configuration,alarm, and performance measurement.

� DBS performs data management.

� BRS provides the function of protocol stack.

� BRACS controls the access to bearer layer.

� SCS provides the function of power-on order control, mas-ter/slave changeover, and IPMI control.

With the operation and application support platform, different ser-vice software can be added to support different radio system.



Working PrinciplesControl Data Flow

The control data flow in BS8700 is as shown in Figure 11. Abis/Iubinterface control plane data accesses the system via Abis/Iub in-terface and terminates at CC.

FIGURE 11 CONTROL DATA FLOW

– Abis/Iub interface can beE1/T1/GE/FE.

– E1/T1 interface is on SA/SE board.– GE/FE interface is on CC board.

Service Data Flow

The service data flow in BS8700 is as shown in Figure 12. On thedownlink, the data from BSC/RNC is forwarded from CC board toUBPG/BPC . After being processed, the data is sent to RRU via FS.Vice verse on the uplink.



FIGURE 12 SERVICE DATA FLOW

– Abis/Iub interface can beE1/T1/GE/FE.

– E1/T1 interface is on SA/SE board.– GE/FE interface is on CC board.

Clock System

In BS8700, the CC board generates and distributes the clock. Theclock source falls into the following types:

� Embedded GPS receiver

� External GPS/Galileo/BeiDou receiver

� BITS-2MHz clock

� BITS-2Mbps clock (introduced through the 8th E1/T1 on SAboard)

� E1/T1 line clock

� IEEE1588 clock (IP clock reference source)

CC distributes two groups of clocks, 61.44 MHz clock and FR (10ms)/FN clock, simultaneously and distributes to the boards via thebackplane, to meet the requirements of GSM/UMTS respectively.

Inner Communication Network

The BS8700 system contains two switching networks.

� IP signaling stream and media flow switching network: Itsswitching plane is the Ethernet switching module on the CCboard.

� IQ data switching network: Its switching plane is the IQ switch-ing module on the FS board.

The communication between boards uses the IP signaling flow andmedia flow switching network.



Master/Slave Design

To ensure the stability of the BS8700 system, the main controlboard, CC board, is designed in the M/S structure.

Hardware ConfigurationConfiguration Principles

Table 11 shows the configuration principles of BS8700 boards.

TABLE 11 BOARD CONFIGURATION PRINCIPLES

Board Quantity Configuration Principles

CC 1 ~ 2 One is mandatory. When two boards areconfigured, they must be in M/S mode.

PM 1 ~ 2 One is mandatory. When two boards areconfigured, they must be load sharing or M/Smode.

SA 1 Mandatory

FA 1 Mandatory

BPC 1 ~ 5 In UMTS system, one BPC board supports192CE/6CS and the total number ofBPC+UBPG+SE should be ≤ 5

UBPG 1 ~ 5 In GSM system, one UBPG board supports12TRX and the total number of BPC+UBPG+SEshould be ≤ 5

FS 1 ~ 2 One is mandatory. Each FS board supports atmost six optical interfaces.

SE 0 ~ 1 Optical. Configure it when number of E1/T1 ordry contact interfaces needs to be expanded.

Maximum Capacity Configured inGSM System

The maximum capacity configurations of BS8700 in GSM systemis as shown in Table 12. In this case, the system supports at most60TRX.



TABLE 12 MAXIMUM CAPACITY CONFIGURED IN GSM SYSTEM

Boa-rd

CC UBPG FS SA (Man-datory)

PM FA(Mandatory)

Qua-ntity

2 5 1 1 2 1

Maximum Capacity Configured inUMTS System

The maximum capacity configurations of BS8700 in UMTS systemis as shown in Table 13. In this case, the system supports at most12CS (6S*2C, transmitting without diversity).

TABLE 13 MAXIMUM CAPACITY CONFIGURED IN UMTS SYSTEM

Boa-rd

CC BPC FS SA (Man-datory)

PM FA(Mandatory)

Qua-ntity

2 5 1 1 2 1

Typical Configurations in Dual ModeSystem

The typical configurations of the BS8700 in the dual mode systemare as shown in Table 14. In this case, the system supports atmost UMTS 6CS (2S*2C, transmission diversity)+GSM 36TRX.

TABLE 14 MAXIMUM CAPACITY CONFIGURED IN DUAL MODE SYSTEM

Bo-ard

CC BPC UB-PG

FS SA (Man-datory)

PM FA (Man-datory)

Qu-an-tity

2 2 3 1 1 2 1

System SoftwareConfigurationBS8700 system software is configured in a package.



System InterfacesBrief Introduction to System Interface

Table 15 describes the main interfaces of the BS8700 system.

TABLE 15 INTERFACE DESCRIPTIONS

Function PhysicalInterface

Location Description

E1/T1 SA/SE SA supportseight channelsof E1s/T1. SEsupports eightchannels ofE1/T1.

Ethernet opticalinterface

CC

Iub/Abisinterface

Ethernetelectricalinterface

CC

The Ethernetoptical interfaceand electricalinterfaceprovided byCC boardcannot be usedsimultaneously.

GPS antennafeeder interface(RF interface)

CC

BITS-2MHzinterface

CC

CC providesonly oneinterface. Itcannot be usedby GPS andBITS-2MHzclock referencesimultaneously.

Clock source

BITS-2Mbps SA Introducedthrough the 8thE1/T1

Localoperation andmaintenance

Ethernetelectricalinterface

CC CC provides oneLMT interface

Remoteoperation andmaintenance

– – Carried byAbis/Iubinterface

Power supply Power supplyinterface

PM –

Baseband-RFinterface

Opticalinterface

FS Each FSsupports amaximum ofsix opticalinterfaces.

Antenna feederinterface

RF interface RRU Each RRU sup-ports on receiv-ing diversity



Function PhysicalInterface

Location Description

RF interfaceand one receiv-ing/transmit-ting main RFinterface.

External Interface Location

External InterfaceLocation

Figure 13 shows the locations of B8200 external interfaces.

FIGURE 13 B8200 EXTERNAL INTERFACES

1. Baseband-RF optical interface2. Power supply interface3. Dry contact input and output inter-

face/E1/T1 interface/serial com-munication interface

4. External receiver interface5. GPS antenna feeder inter-

face/BITS clock interface

6. Iub/Abis GE optical interface7. Iub/Abis GE/FE electrical interface8. Debugging network interface9. Dry contact input and output inter-

face/E1/T1 interface/serial com-munication interface

R8860 external interfaces are located at the cabinet bottom, asshown in Figure 14.



FIGURE 14 R8860 EXTERNAL INTERFACES

1. BBU-RRU interface/RRU cascadinginterface

2. BBU-RRU interface/RRU cascadinginterface

3. AISG device interface4. External equipment interface5. Power supply interface6. Receiving diversity RF cable inter-

face

7. Transmitting/receiving main RFcable interface

8. Frequency point extensible inter-face

9. Frequency point extensible inter-face

10. Grounding

External InterfaceDescription

Table 16 describes BS8700 external interfaces.

TABLE 16 BS8700 EXTERNAL INTERFACE DESCRIPTION

Equip-ment

Inter-faceName

Description Board/U-nit

Base-band-RFopticalinterface

Optical interface connectingBS8700 and RRU

FS

Powersupplyinterface

External -48 V power input PM

Dry con-tact in-put andoutputinterfac-e/E1/T1inter-face/se-rial com-munica-tion in-terface

including E1/T1, RS232, RS485,and dry contact interface

SA/SE

B8200



Equip-ment

Inter-faceName


Externalreceiverinterface

Connected to external receiver CC

GPS an-tennafeederinterfa-ce/BITSclock in-terface

Externally connected to GPSantenna or BITS clock

CC

Iub/Abisopticalinterface

GE optical interface connectingRNC/BSC

CC

Iub/Abiselectricalinterface

GE electrical interface connectingRNC/BSC

CC

Debug-ging net-work in-terface

Used for BS debugging or localoperation and maintenance

CC

BBU-RRUinter-face/RRUcascad-ing inter-face

Connected with BBU or cascadedRRU

BBU-RRUinter-face/RRUcascad-ing inter-face

Connected with BBU or cascadedRRU

AISG de-vice in-terface

Connected with AISG device

Externalequip-ment in-terface

Connected with monitoring deviceand LMT

Powersupplyinterface

External -48 V power input

Receiv-ing diver-sity RFcable in-terface

Connected to receiving antenna

Trans-mit-ting/re-ceivingmain RF

Connected to transceivingantenna

R8860 RRU



Equip-ment

Inter-faceName


cable in-terface

Fre-quencypoint ex-tensibleinterface(OUT)

Connected to RRU, frequencypoint extensible output interface,outputting main receiving signals

Fre-quencypoint ex-tensibleinterface(IN)

Connected to RRU, frequencypoint extensible input interface,inputting diversity receivingsignals

Ground-ing

Overall equipment grounding

Abis Interface

Abis interface is the interface between BTS and BSC.

InterfaceFunctions

This interface supports all services provided to users, and supportssignaling transmitting and connection function. It especially sup-ports radio resource management including BTS radio equipmentcontrol and allocation.

InterfaceImplementation

Abis interface supports the following physical interfaces:

� Gigabit Ethernet (GE) optical interface

The transmission media is optical fiber. The interface self-adapts various rates of 10 Mbps/100 Mbps/1000 Mbps.

� GE electrical interface

The transmission media is Ethernet fiber. The interface self-adapts various rates of 10 Mbps/100 Mbps/1000 Mbps.

� FE electrical interface

The transmission media is Ethernet fiber. The interface self-adapts various rates of 10 Mbps/100 Mbps.

� E1/T1 interface

Maximum bandwidth of E1: 2.048 M; maximum bandwidth ofT1: 1.544 M.

The Abis interface supports all-IP transmission.

Protocol Hierarchy Figure 15 shows the protocols used in all-IP transsmion at Abisinterface. The protocol stack is different if the bottom link is E1/T1or Ethernet.



FIGURE 15 ABIS INTERFACE PROTOCOL STACK-ALL IP

E1/T1 Interface

Interface Location SA board (SCSI50 socket); SE board SCSI50 socket

Interface Quantity Eight channels+eight channels (SA and SE support eight channelsresepectively)

Transmission Rate E1 transmission rate: 2048 kbit/s

T1 transmission rate: 1544 kbit/s

ObservedStandards

Observed standards of E1: ITU-T G.703, ITU-T G.804

Observed standards of T1: AF-PHY-0016.0000 ANSI/ITUG.703/G.704, 100 Ω characteristics impedance

GE/FE Interface

Interface Type Optical interface or electrical interface

Interface Location On the ETH0 and ETH1 interfaces on CC board

Interface Quantity One optical/electrical interface (on ETH0 interface, electrical andoptical are excluded from each other, so only one optical interfaceor one electrical interface is used) and one independent electricalinterface (on ETH1 interface).

ElectricalInterface

The electrical interface supports 10/100/1000 Mbps self-adapta-tion. The maximum transmission distance is 100 m (category-5or super category-5 twisted pairs).

Optical Interface The optical interface contains the optical modules supporting1000BASE-LX and 1000BASE-SX. The technical indices are asshown in Table 17.



TABLE 17 TECHNICAL INDICES OF OPTICAL MODULE

Property Description

Interface type LC

Interface rate 1000 Mbps

Selected cable andmaximum transmissiondistance

9/125μm single-mode opticalfiber and the transmissiondistance is 10 km.

Observed standard IEEE 802.3z

Central wavelength 1310 nm

Transmission opticalpower

–9.5 dBm

Extinction ratio 8.2 dB

1000BA-SE-LX

Maximum receptionsensitivity

-20 dBm

Interface type LC

Interface rate 1000 Mbps

Selected cable andmaximum transmissiondistance

62.5/125μm multi-modeoptical fiber and thetransmission distance is275 m.

50/125μm multi-modeoptical fiber and thetransmission distance is550 m.

Observed standard IEEE 802.3z

Central wavelength 850 nm

Transmission opticalpower

-9.5 dBm

Extinction ratio 9 dB

1000BA-SE-SX

Maximum receptionsensitivity

-17 dBm

Baseband-RF interface

Interface Type Optical interface

Interface Location Optical interface on UBPI board

Interface Quantity Three on each baseband board. When the FS works in ac-tive/standby mode, a maximum of eight baseband boards can beconfigured. Otherwise, a maximum of nine can be configured.

Transmission Rate 2.5 Gbps



GPS Interface

Interface Type RF interface, SMA (F)

Interface Location On REF interface on CC board

Interface Quantity One

ReceptionFrequency

1575.42 MHz

Cascading Ethernet Interface

Interface Type Ethernet electrical interface

Interface Location On the ETH1 interface on CC board

ElectricalInterface


LMT Interface

Interface Type Electrical interface

Interface Location On the ETH1 interface on CC board

ObservedStandards

The interface complies with IEEE802.3-2002 standards.

Transmission Rateand Distance


Operation and Maintenance Interface

The operation and maintenance interface (remote) of the BS8700is a logical interface. The operation and maintenance informationis connected to BSC through Abis interface and then connected toNE management system (NMS) system through BSC, as shown inFigure 16.



FIGURE 16 OPERATION AND MAINTENANCE INTERFACE

If the Abis interface is based on all-IP transmission, the operationand maintenance information is delivered in IP in IP mode. Figure17 shows the protocol stack.

FIGURE 17 OPERATION AND MAINTENANCE INTERFACE-ALL IP

Software DescriptionSoftware Introduction

The BS8700 software consists of two parts: foreground softwareand background software. The foreground software refers to the



software that runs on the boards and the background softwarerefers to the NM software.

ForegroundSoftware

The foreground software exists in the form of the packet, whichcan be downloaded to the main control board through the NM soft-ware. The main control board distributes the foreground softwareto other boards and then the software starts to run.

BackgroundSoftware

The background software includes OMC and LMT. The OMC per-forms the remote operation and maintenance on the system, whilethe LMT performs the local operation and maintenance on the sys-tem.

NetNumen™ M31 is the registered trade mark of the OMC soft-ware. NetNumen™ M31 can perform the management, operation,and maintenance on all models of GSM/WCDMA BSs, includingBS8700.

Related NMS Software

LMT Software

LMT Software Local maintenance terminal (LMT) is the NM tool to perform theoperation and maintenance on a single BTS.

The LMT software includes the following functional modules:

� Configuration management

� Fault management

� Performance management

� Diagnostic test

� Other assistant functions

ApplicationScenarios

� On-site commissioning and debugging by engineering person-nel

� Routine site maintenance

NetNumen™ M31 Software

Overview NetNumen™ M31 radio access network integrated NMS (NetNu-men™ M31 or integrated NM in short) is the system between thelower-level NM and upper-layer operation supporting system. Net-Numen M31 enables the users to manage the network by consid-ering the global network at the same time. It supports centralizedmanagement of all professional networks provided by the oper-ators. Through the interface to all professional NMs, NetNumenM31 can manage the professional networks in the manner of cen-tralized network topo, centralized alarm, and centralized perfor-mance, changed from the former scattered management mode.Meanwhile, NetNumen M31 provides a uniform interface for theupper-layer application system.



NetNumen M31 adopts the technology totally facing the objects.Its design is based on the advanced J2EE platform. NetNumen 31realizes the integrated access of all NE devices that are manufac-tured by ZTE Corporation. It supports centralized alarm manage-ment and centralized performance management on NE, and fulfillsthe function of cross-NE performance data analysis.

Compared with NE-level NM, the advantages of the radio networkcentralized NM are:

� It focuses on the fault management, performance statistics andconfiguration management in the whole network

� It provides a broader management scope with the capability ofmanaging both devices of ZTE and third-party devices

Features � NetNumen™ M31 has a Client/Server architecture. The ap-plication server connects to the radio network subsystem andmeets various application requirements. The client only pro-vides an interface for the operator to input operation instruc-tions and view the result.

� The server can run on the Unix or Windows operating system.It supports the application of Oracle database, meeting theperformance requirement during the operation of the system.

� The system software has a modularized structure, providinga good scalability for the system. The software modulescan be distributed on different computers according to theactual requirement to improve the processing capacity of thesystem. The system supports distributed deployment, whichbrings convenience in constructing a management network ona large-scale site.

� The overall structure of the system is designed in compliancewith the framework of Telecommunication Management Net-work (TMN) specified by ITU-T.

� The system supports the centralized maintenance and man-agement of various radio network subsystems, includingWCDMA, TD-SCDMA and GSM radio networks. Accordingly,the NEs that can be maintained and managed by the systeminclude: RNC and Node B in WCDMA networks, RNC and NodeB in TD-SCDMA networks, as well as BSC and BTS in GSMnetworks. It supports the access of up to 40 equivalent NEs.

� Designed according to TMN specifications of ITU-T and relatedspecifications of 3GPP, the system provides more value-addedapplications besides the basic management functions. All thefunctions are organized around the core of managed objects.And various supplementary management tools are provided forassistance.

� The system provides both GUI and command line interface. Itsupports MML commands.

� The system provides network topological graphs for monitor-ing the running status of the whole network in an intuitive way.The network topological graphs can be organized on differentlevels, such as global topological graph, and local topologicalgraph. The system can not only show the alarms in the wholenetwork in a centralized way, but also indicate the alarms onthe topological graph and corresponding rack map in real time.It prompts the alarms at different severity levels through dif-ferent sounds and colors. The system also supports the cen-



tralized management of performance data in the whole net-work for convenient query, statistics and report output of theperformance data.

Service Board Software of BS8700

The service board software of BS8700 refers to the software thatruns on boards to implement the BTS/Node B protocol function ofGSM/UMTS.


Figures

Figure 1 Overall Appearance ................................................ 2

Figure 2 UMTS/GSM EDGE Network Structure......................... 2

Figure 3 BS8700 Compositions ............................................. 3

Figure 4 Star Networking..................................................... 7

Figure 5 Chain Networking................................................... 7

Figure 6 Ring Networking .................................................... 8

Figure 7 Star Networking at Abis Interface ............................. 9

Figure 8 Chain Networking at Abis Interface ........................... 9

Figure 9 Relationship Between Modules ................................22

Figure 10 Software System Structure ...................................24

Figure 11 Control Data Flow................................................25

Figure 12 Service Data Flow................................................26

Figure 13 B8200 External Interfaces ....................................30

Figure 14 R8860 External Interfaces ....................................31

Figure 15 Abis Interface Protocol Stack-All IP ........................34

Figure 16 Operation and Maintenance Interface .....................37

Figure 17 Operation and Maintenance Interface-All IP.............37


Tables

Table 1 Power Consumption in Typical Configuration ...............10

Table 2 Temperature and Humidity Requirements...................12

Table 3 Capacity and Technical Indices in GSM System ...........12

Table 4 Capacity and Technical Indices in UMTS System..........13

Table 5 Capacity and Technical Indices in Dual-Mode System...13

Table 6 Observed General Standards ....................................14

Table 7 Observed EMC Standards.........................................16

Table 8 Operation Environment............................................16

Table 9 Storage environment...............................................18

Table 10 Declaration of ROHS Compliance for BS8700

Manufactured by ZTE CORPORATION....................19

Table 11 Board Configuration Principles ................................27

Table 12 Maximum Capacity Configured in GSM System..........28

Table 13 Maximum Capacity Configured in UMTS System ........28

Table 14 Maximum Capacity Configured in Dual Mode System...28

Table 15 Interface Descriptions............................................29

Table 16 BS8700 External Interface Description .....................31

Table 17 Technical Indices of Optical Module..........................35


Glossary


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