3900 series base station technical description (11)(pdf)-en

3900 Series Base Station

Technical Description

Issue 11Date 2013-08-20

HUAWEI TECHNOLOGIES CO., LTD.

Copyright Huawei Technologies Co., Ltd. 2013. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied. Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.comEmail: [email protected]

Issue 11 (2013-08-20) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

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About This Document

OverviewThis document describes the 3900 series base stations in terms of the logical structure,networking, transmission and clock scheme, technical specification, and operation andmaintenance.

Product VersionThe following table provides the mapping between a product name and product version.

Product Name Product VersionBTS3900 MBTS: V100R007C00

l GSM: V100R014C00l WCDMA: V200R014C00l LTE: V100R005C00

BTS3900ABTS3900LBTS3900ALDBS3900BTS3900C MBTS: V100R007C00

l WCDMA: V200R014C00

Intended AudienceThis document is intended for:l Network planning engineersl Field engineersl System engineers

3900 Series Base StationTechnical Description About This Document


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Organization1 Changes in the 3900 Series Base Station Technical DescriptionThis section describes changes in the 3900 Series Base Station Technical Description of eachversion.2 3900 Series Base Station Product FamilyHuawei 3900 series base stations adopt a uniform modular design for multiple radio networksystems. These base stations support the co-existence of devices serving different modes at thesame site, sharing of base station resources, and the unified operation and maintenance method.With these merits, operators' requirement of evolution to multi-mode base stations becomesfeasible.3 Network StructureThis section describes the position of a 3900 series base station in a network.4 About 3900 Series Base StationsThe 3900 series base stations include macro base stations (BTS3900, BTS3900L, BTS3900A,and BTS3900AL), a distributed base station (DBS3900), micro base stations (BTS3900C,BTS3900E, and BTS3902E), and a Pico base station (BTS3900B). Different types of basestations can be used in various scenarios to achieve fast deployment and low operatingexpenditure (OPEX). This technical description focuses on macro base stations, the distributedbase station DBS3900, and the micro base station BTS3900C. For a description of the othertypes of 3900 series base stations, see the production documentation of the base station inquestion.5 Logical StructureA 3900 series base station mainly consists of BBUs, RF modules, and the antenna system. Itsfunctional subsystem includes the control system, transport system, baseband system,monitoring system, RF system, antenna system, and power supply system.6 Clock SynchronizationSynchronization refers to that within a specific time, the phase variation or frequency variationbetween two or more signals stays within the specified range. Clock synchronization refers tothat a base station synchronizes its clock signals with a reference clock source. Through clocksynchronization, the variation in the clock frequency between a base station and other devicesin the related network and the variation in the clock signals between the base station and otherdevices in the network are within the specified range. This prevents transmission performancefrom deteriorating due to such variations.7 Transport Network TopologiesThe 3900 series base stations support multiple transmission schemes and transport networktopologies in various scenarios.8 CPRI-based TopologiesThis section describes CPRI-based topologies for 3900 series base stations and specificationsof CPRI ports on boards or modules. CPRI stands for common public radio interface.9 Operation and Maintenance



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The 3900 series base stations are managed by an operation and maintenance (O&M) systemusing either man-machine language (MML) commands or a graphical user interface (GUI). Thissystem is hardware-independent and provides comprehensive functions to meet users' variousO&M requirements.10 Product SpecificationsProduct specifications of the 3900 series base stations include technical specifications of theBBU3900, radio frequency unit (RFU), and remote radio unit (RRU) and engineeringspecifications of each type of cabinet.11 Reliability3900 series base stations use the Huawei SingleBTS platform, support hardware sharing, andprovide mature communications technologies and stable transmission reliability.

ConventionsSymbol ConventionsThe symbols that may be found in this document are defined as follows.

Symbol DescriptionIndicates a hazard with a high level or medium level of riskwhich, if not avoided, could result in death or serious injury.

Indicates a hazard with a low level of risk which, if notavoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation that, if notavoided, could result in equipment damage, data loss,performance deterioration, or unanticipated results.Indicates a tip that may help you solve a problem or savetime.Provides additional information to emphasize or supplementimportant points of the main text.

General ConventionsThe general conventions that may be found in this document are defined as follows.

Convention DescriptionTimes New Roman Normal paragraphs are in Times New Roman.Boldface Names of files, directories, folders, and users are in

boldface. For example, log in as user root.Italic Book titles are in italics.



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Convention DescriptionCourier New Examples of information displayed on the screen are in

Courier New.

Command ConventionsThe command conventions that may be found in this document are defined as follows.

Convention DescriptionBoldface The keywords of a command line are in boldface.Italic Command arguments are in italics.[ ] Items (keywords or arguments) in brackets [ ] are optional.{ x | y | ... } Optional items are grouped in braces and separated by

vertical bars. One item is selected.[ x | y | ... ] Optional items are grouped in brackets and separated by

vertical bars. One item is selected or no item is selected.{ x | y | ... }* Optional items are grouped in braces and separated by

vertical bars. A minimum of one item or a maximum of allitems can be selected.

[ x | y | ... ]* Optional items are grouped in brackets and separated byvertical bars. Several items or no item can be selected.

GUI ConventionsThe GUI conventions that may be found in this document are defined as follows.

Convention DescriptionBoldface Buttons, menus, parameters, tabs, window, and dialog titles

are in boldface. For example, click OK.> Multi-level menus are in boldface and separated by the ">"

signs. For example, choose File > Create > Folder.

Keyboard OperationsThe keyboard operations that may be found in this document are defined as follows.

Format DescriptionKey Press the key. For example, press Enter and press Tab.



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Format DescriptionKey 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt

+A means the three keys should be pressed concurrently.Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means

the two keys should be pressed in turn.

Mouse OperationsThe mouse operations that may be found in this document are defined as follows.

Action DescriptionClick Select and release the primary mouse button without moving

the pointer.Double-click Press the primary mouse button twice continuously and

quickly without moving the pointer.Drag Press and hold the primary mouse button and move the

pointer to a certain position.



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Contents

About This Document.....................................................................................................................ii1 Changes in the 3900 Series Base Station Technical Description..........................................12 3900 Series Base Station Product Family.................................................................................253 Network Structure.......................................................................................................................273.1 GBTS in the Network...................................................................................................................................................283.2 NodeB in the Network..................................................................................................................................................293.3 eNodeB in the Network................................................................................................................................................313.4 MBTS in the Network..................................................................................................................................................324 About 3900 Series Base Stations...............................................................................................354.1 Basic Modules..............................................................................................................................................................374.1.1 BBU3900...................................................................................................................................................................374.1.2 RFU...........................................................................................................................................................................414.1.3 RRU...........................................................................................................................................................................464.2 BTS3900.......................................................................................................................................................................504.3 BTS3900L....................................................................................................................................................................544.4 BTS3900A....................................................................................................................................................................594.5 BTS3900AL..................................................................................................................................................................664.6 DBS3900......................................................................................................................................................................694.7 BTS3900C....................................................................................................................................................................735 Logical Structure..........................................................................................................................785.1 GBTS Logical Structure...............................................................................................................................................795.2 NodeB Logical Structure..............................................................................................................................................805.3 eNodeB Logical Structure............................................................................................................................................845.4 MBTS Logical Structure..............................................................................................................................................855.4.1 Related Concepts.......................................................................................................................................................865.4.2 Logical Structure of a Dual-Mode Base Station .......................................................................................................885.4.3 Logical Structure of a Triple-Mode Base Station......................................................................................................926 Clock Synchronization.............................................................................................................1006.1 GBTS Clock Synchronization Modes........................................................................................................................1026.2 NodeB Clock Synchronization Modes.......................................................................................................................103

3900 Series Base StationTechnical Description Contents


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6.3 eNodeB Clock Synchronization Modes.....................................................................................................................1046.4 MBTS Clock Synchronization Modes........................................................................................................................1066.4.1 Independent Reference Clock Mode.......................................................................................................................1066.4.2 Common Reference Clock Mode............................................................................................................................1077 Transport Network Topologies..............................................................................................1127.1 GBTS Transport Network Topologies.......................................................................................................................1137.2 NodeB Transport Network Topologies......................................................................................................................1217.3 eNodeB Transport Network Topologies.....................................................................................................................1257.4 MBTS Transport Network Topologies.......................................................................................................................1287.4.1 Transport Network Topology..................................................................................................................................1287.4.2 Independent Transmission.......................................................................................................................................1317.4.3 Co-Transmission......................................................................................................................................................1328 CPRI-based Topologies............................................................................................................1468.1 GBTS CPRI-based Topologies...................................................................................................................................1488.2 NodeB CPRI-based Topologies..................................................................................................................................1528.3 eNodeB CPRI-based Topologies................................................................................................................................1578.4 MBTS CPRI-based Topologies..................................................................................................................................1678.4.1 CPRI-based Topologies...........................................................................................................................................1688.4.2 CPRI Specifications.................................................................................................................................................1718.4.3 CPRI MUX Specifications......................................................................................................................................1759 Operation and Maintenance....................................................................................................1779.1 GBTS Operation and Maintenance.............................................................................................................................1789.1.1 GBTS Operation & Maintenance Modes................................................................................................................1789.1.2 GBTS Operation & Maintenance Functions...........................................................................................................1799.2 NodeB Operation and Maintenance...........................................................................................................................1809.2.1 NodeB Operation & Maintenance Modes...............................................................................................................1809.2.2 NodeB Operation & Maintenance Functions..........................................................................................................1829.3 eNodeB Operation and Maintenance..........................................................................................................................1839.3.1 eNodeB Operation & Maintenance Modes.............................................................................................................1839.3.2 eNodeB Operation & Maintenance Functions.........................................................................................................1849.4 MBTS Operation and Maintenance............................................................................................................................1869.4.1 MBTS Operation & Maintenance Modes................................................................................................................1879.4.2 MBTS Operation & Maintenance Functions...........................................................................................................1889.4.3 Maintenance Between Modes..................................................................................................................................20610 Product Specifications............................................................................................................22110.1 Technical Specifications of the BBU3900...............................................................................................................22210.1.1 Capacity Specifications.........................................................................................................................................22210.1.2 Baseband Specifications........................................................................................................................................22410.1.3 Signaling Specifications........................................................................................................................................23110.1.4 Transmission Port Specifications..........................................................................................................................235



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10.1.5 Engineering Specifications....................................................................................................................................23510.2 Technical Specifications of RFUs............................................................................................................................24110.2.1 GRFU Technical Specifications............................................................................................................................24110.2.2 DRFU Technical Specifications............................................................................................................................24910.2.3 WRFU Technical Specifications...........................................................................................................................25310.2.4 WRFUd Technical Specifications.........................................................................................................................26010.2.5 WRFUe Technical Specifications.........................................................................................................................26710.2.6 MRFU Technical Specifications...........................................................................................................................27410.2.7 MRFUd Technical Specifications.........................................................................................................................28910.2.8 MRFUe Technical Specifications..........................................................................................................................30310.2.9 CRFUd Technical Specifications..........................................................................................................................31110.2.10 LRFU Technical Specifications...........................................................................................................................31510.2.11 LRFUe Technical Specifications.........................................................................................................................31810.3 Technical Specifications of RRUs............................................................................................................................32110.3.1 RRU3004 Technical Specifications.......................................................................................................................32210.3.2 RRU3008 Technical Specifications.......................................................................................................................32810.3.3 RRU3804 Technical Specifications.......................................................................................................................33910.3.4 RRU3805 Technical Specifications.......................................................................................................................34810.3.5 RRU3806 Technical Specifications.......................................................................................................................35710.3.6 RRU3808 Technical Specifications.......................................................................................................................36610.3.7 RRU3824 Technical Specifications.......................................................................................................................38310.3.8 RRU3826 Technical Specifications.......................................................................................................................38910.3.9 RRU3828 Technical Specifications.......................................................................................................................39610.3.10 RRU3829 Technical Specifications.....................................................................................................................40610.3.11 RRU3832 Technical Specifications.....................................................................................................................41610.3.12 RRU3838 Technical Specifications.....................................................................................................................43410.3.13 RRU3801E Technical Specifications..................................................................................................................44410.3.14 RRU3908 Technical Specifications ....................................................................................................................45210.3.15 RRU3926 Technical Specifications.....................................................................................................................47010.3.16 RRU3928 Technical Specifications.....................................................................................................................47910.3.17 RRU3929 Technical Specifications.....................................................................................................................49010.3.18 RRU3936 Technical Specifications.....................................................................................................................50310.3.19 RRU3938 Technical Specifications.....................................................................................................................51310.3.20 RRU3942 Technical Specifications.....................................................................................................................52410.3.21 RRU3201 Technical Specifications.....................................................................................................................54110.3.22 RRU3203 Technical Specifications.....................................................................................................................54710.3.23 RRU3220 Technical Specifications.....................................................................................................................55210.3.24 RRU3221 Technical Specifications.....................................................................................................................55710.3.25 RRU3222 Technical Specifications.....................................................................................................................56410.3.26 RRU3229 Technical Specifications.....................................................................................................................56910.3.27 RRU3240 Technical Specifications.....................................................................................................................576



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10.3.28 RRU3841 Technical Specifications.....................................................................................................................58310.4 Engineering Specifications.......................................................................................................................................59110.4.1 BTS3900 Engineering Specifications....................................................................................................................59110.4.2 BTS3900L Engineering Specifications.................................................................................................................59610.4.3 BTS3900A Engineering Specifications.................................................................................................................60010.4.4 BTS3900AL Engineering Specifications..............................................................................................................60510.4.5 DBS3900 Engineering Specifications...................................................................................................................61010.4.6 BTS3900C Engineering Specifications.................................................................................................................61311 Reliability..................................................................................................................................61811.1 GBTS Reliability......................................................................................................................................................61911.2 NodeB Reliability.....................................................................................................................................................62011.3 eNodeB Reliability...................................................................................................................................................62211.4 MBTS Reliability.....................................................................................................................................................624



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1 Changes in the 3900 Series Base StationTechnical Description

This section describes changes in the 3900 Series Base Station Technical Description of eachversion.

11 (2013-08-20)This is issue 11.Compared with issue 10 (2013-05-27), this issue includes the following new topics:l 10.3.11 RRU3832 Technical Specificationsl 10.3.12 RRU3838 Technical Specificationsl 10.3.19 RRU3938 Technical SpecificationsCompared with issue 10 (2013-05-27), this issue incorporates the following changes:

Topic Change Description4.1.3 RRU Added description about the RRU3936,

RRU3938, RRU3832, and RRU3838.8.1 GBTS CPRI-based Topologies l Added CPRI specifications of the

RRU3936 and RRU3938.l Modified CPRI data rates of the

RRU3928, RRU3929, and RRU3942.8.2 NodeB CPRI-based Topologies l Added CPRI specifications of the

MRFUe, RRU3938, RRU3832, andRRU3838.

l Modified CPRI data rates of theRRU3928, RRU3929, and RRU3942.

3900 Series Base StationTechnical Description

1 Changes in the 3900 Series Base Station TechnicalDescription


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Topic Change Description8.3 eNodeB CPRI-based Topologies l Added CPRI specifications of the

MRFUe, RRU3832, RRU3926,RRU3936, and RRU3938.

l Modified the CPRI data rate of theMRFUd.

l Modified the maximum distance betweenthe BBU and the RRU.

8.4.2 CPRI Specifications l Added CPRI specifications of theRRU3938 and RRU3832.

l Modified CPRI data rates of theRRU3928, RRU3929, and RRU3942.

10.1.1 Capacity Specifications Added board configuration descriptions.10.2 Technical Specifications of RFUs and10.3 Technical Specifications of RRUs

l Added CPRI specifications of RFmodules.

l Modified port names in the table of surgeprotection specifications.

10.2.3 WRFU Technical Specifications l Modified the weight specifications.l Modified the power consumption

specifications.10.2.4 WRFUd Technical Specifications Modified the power consumption

specifications when the WRFUd is used withthe BTS3900L cabinet.

10.2.5 WRFUe Technical Specifications Modified the power consumptionspecifications.

10.2.10 LRFU Technical Specifications Removed the power consumption for a singlemodule.

10.2.11 LRFUe Technical Specificationsand 10.2.9 CRFUd TechnicalSpecifications

l Removed the power consumption for asingle module.

l Added typical output powerconfigurations for RF modules.

10.2.6 MRFU Technical Specifications l Modified the RX and TX frequency bandsof the MRFU V2 working at the 1800MHz frequency band.

l Added the power consumptionspecifications when the MRFU V2 orMRFU V2a is used with the BTS3900ALAC (Ver.A) cabinet.

10.3.1 RRU3004 Technical Specifications Added the size and weight without thehousing.




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Topic Change Description10.3.2 RRU3008 Technical Specifications l Added the frequency band of the

RRU3008 V1 working at the 900 MHzfrequency band.

l Added the size and weight without thehousing and modified the weight with thehousing.

10.3.6 RRU3808 Technical Specifications l Removed specifications of the 2100 MHzRRU3808 working in LTE mode.

l Added the table of carrier configurationswhen the RRU3808 works in UMTSmode and uses the combination of thesingle output configurations and MIMO.

l Removed the power consumption of asingle RRU3808 working in LTE mode.

l Modified the power consumption of theAWS RRU3808 working in LTE mode ina whole site.

10.3.7 RRU3824 Technical Specificationsand 10.3.8 RRU3826 TechnicalSpecifications

Removed the size and weight with thehousing.

10.3.21 RRU3201 TechnicalSpecifications, 10.3.23 RRU3220Technical Specifications, and 10.3.25RRU3222 Technical Specifications

Removed the power consumption for a singlemodule.

10.3.22 RRU3203 Technical Specifications l Modified the weight specifications.l Removed the power consumption for a

single module.10.3.24 RRU3221 TechnicalSpecifications, 10.3.26 RRU3229Technical Specifications, 10.3.27RRU3240 Technical Specifications, and10.3.28 RRU3841 Technical Specifications

l Added typical output powerconfigurations for RF modules.

l Removed the power consumption for asingle module.

10.3.16 RRU3928 TechnicalSpecifications, 10.3.17 RRU3929Technical Specifications, and 10.3.20RRU3942 Technical Specifications

Added the size and weight without thehousing.

10.3.18 RRU3936 Technical Specifications Modified the weight specifications.




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Topic Change Description10.4.1 BTS3900 EngineeringSpecifications

l Divided the Input power supported bythe BTS3900 (Ver.B), BTS3900(Ver.C), and BTS3900 (Ver.D)cabinets table into three tables: Inputpower supported by the BTS3900(Ver.B) cabinet, Input powersupported by the BTS3900 (Ver.C)cabinet, and Input power supported bythe BTS3900 (Ver.D) cabinet.

l Modified the weight of the BTS3900(Ver.D) cabinet.

l Added the safety standards, workingenvironment standards, and noisestandards that a cabinet must comply with.

10.4.2 BTS3900L EngineeringSpecifications, 10.4.4 BTS3900ALEngineering Specifications, 10.4.5DBS3900 Engineering Specifications, and10.4.6 BTS3900C EngineeringSpecifications

Added the safety standards, workingenvironment standards, and noise standardsthat a cabinet must comply with.

10.4.3 BTS3900A EngineeringSpecifications

l Modified the base size.l Added the safety standards, working

environment standards, and noisestandards that a cabinet must comply with.

Compared with issue 10 (2013-05-27), this issue does not exclude any topics.

10 (2013-05-27)This is issue 10.Compared with issue 09 (2013-04-30), this issue includes the following new topics:l 10.1.1 Capacity Specificationsl 10.1.2 Baseband Specificationsl 10.1.3 Signaling Specificationsl 10.1.4 Transmission Port Specificationsl 10.1.5 Engineering Specificationsl 10.3.18 RRU3936 Technical SpecificationsCompared with issue 09 (2013-04-30), this issue incorporates the following changes:




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Topic Change Description8.4.2 CPRI Specifications l Added the maximum number of 2T2R

cells supported by the UMTS mode.l Added specifications for CPRI ports on

the RRU3936.8.2 NodeB CPRI-based Topologies Added the maximum number of 2T2R cells

supported by the UMTS mode.10.1 Technical Specifications of theBBU3900

This section is divided into the followingparts:l Capacity specifications. For detailed

information, see 10.1.1 CapacitySpecifications.

l Signaling specifications. For detailedinformation, see 10.1.2 BasebandSpecifications.

l Transmission port specifications. Fordetailed information, see 10.1.4Transmission Port Specifications.

l Input power, equipment, environment,and surge protection specifications. Fordetailed information, see 10.1.5Engineering Specifications.

10.2.7 MRFUd Technical Specifications Modified the Output power of MRFUd(900/1800 MHz, GL MSR) table.

10.3.17 RRU3929 Technical Specifications Modified the Output power of RRU3929(900/1800 MHz, GL MSR) table.


09 (2013-04-30)This is issue 09.Compared with issue 08 (2013-02-20), this issue does not include any new topics.Compared with issue 08 (2013-02-20), this issue incorporates the following changes:

Topic Change Description4.4 BTS3900A Added the IBBS700T and IBBS700D to the

battery cabinets of the BTS3900A (Ver.D).




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Topic Change Description8.4.2 CPRI Specifications Added the following description: In a GU

dual-mode base station, the UMTS sidereserves CPRI bandwidth for a TX and an RXchannel of the GSM side in case thatbandwidth on the GSM side is insufficient. Asa result, the cell number supported by theUMTS side is reduced.

10.3.3 RRU3804 Technical Specifications Deleted the power backup duration in tablesPower consumption of DBS3900 withRRU3804 (AC) operating in the 2100 MHzfrequency band and Power consumption ofDBS3900 with RRU3804 (AC) operating inthe 850 MHz frequency band.

10.3.5 RRU3806 Technical Specifications Deleted the power backup duration in thetable Power consumption of DBS3900 withRRU3806 (AC).

10.3.13 RRU3801E TechnicalSpecifications

Deleted the power backup duration in thetable Power consumption of DBS3900 withRRU3801E (AC).

10.3.14 RRU3908 Technical Specifications Added specifications related to the RRU3908(AC).



Topic Change Description4.1.1 BBU3900 Added the UMPTb1 board.10.1 Technical Specifications of theBBU3900

Updated LTE capacity specifications.

10.2.1 GRFU Technical Specifications Added output power and power consumptionspecifications for the GRFU V2a.

10.2.6 MRFU Technical Specifications Added output power and power consumptionspecifications for the MRFU V2a.

10.4.1 BTS3900 EngineeringSpecifications

Updated power specifications.




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Topic Change Description10.4.3 BTS3900A EngineeringSpecifications


10.4.4 BTS3900AL EngineeringSpecifications




Topic Change Description5 Logical Structure In the logical structure, replaced the Filter in

the RF system with a Duplexer and changedthe bidirectional arrow between the PA/LNAand the signal processing unit, between thePA/LNA and the filter to a unidirectionalarrow. PA is short for power amplifier andLNA is short for low noise amplifier.

10.2 Technical Specifications of RFUs Added the maximum output power supportedby the RF modules.

10.2.1 GRFU Technical Specifications Modified power consumption of the GRFU.10.3 Technical Specifications of RRUs Added the maximum output power supported

by the RF modules.10.3.3 RRU3804 Technical Specifications Added specifications of the RRU3804 (AC)

working in the 850 MHz frequency band.10.3.28 RRU3841 Technical Specifications Modified the combination of ports for

transmitting RF signals when the RRU3841uses the 1T2R, 2T2R, and 2T4Rconfigurations, respectively.

10.3.20 RRU3942 Technical Specifications Modified the data in the Output power ofRRU3942 (1900 MHz, UL MSR) table.





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Topic Change Description2 3900 Series Base Station Product Family Optimized figures and descriptions.4.1.2 RFU Modified the hybrid configuration rule for

radio frequency (RF) modules.4.1.3 RRU Modified the hybrid configuration rule for RF

modules.4.2 BTS3900 Modified the maximum configurations of a

BTS3900 using RFUs and RRUs and detailedthe configurations based on the type of theconfigured cabinet.

4.3 BTS3900L Modified the maximum configurations of aBTS3900L using RFUs and RRUs anddetailed the configurations based on the typeof the configured cabinet.

4.4 BTS3900A l Removed description about theBTS3900A (Ver.D1) cabinets, andrenamed the BTS3900A (Ver.D2)cabinets BTS3900A (Ver.D).

l Modified the maximum configurations ofa BTS3900A using RFUs and RRUs anddetailed the configurations based on thetype of the configured cabinet.

4.5 BTS3900AL Modified the maximum configurations of asingle-mode BTS3900AL using RFUs andRRUs and the maximum configurations of adual-mode BTS3900AL using RFUs andRRUs.

4.6 DBS3900 l Removed description about the APM30H(Ver.D1) and TMC11H (Ver.D1)cabinets.

l Renamed the APM30H (Ver.D2) andTMC11H (Ver.D2) cabinets APM30H(Ver.D) and TMC11H (Ver.D),respectively.

10.2 Technical Specifications of RFUs Modified the RET antenna support capabilityof each type of RFUs and specified whethereach of them complies with AISG1.1.




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Topic Change Description10.3 Technical Specifications of RRUs Modified the RET antenna support capability

of each type of RRUs and specified whethereach of them complies with AISG1.1.

10.2.9 CRFUd Technical Specifications Added power consumption for the whole basestation.

10.2.10 LRFU Technical Specifications Added power consumption for the whole basestation.

10.2.11 LRFUe Technical Specifications Added power consumption for the whole basestation.

10.3.6 RRU3808 Technical Specifications Added power consumption for the whole basestation when RRU3808s work in LTE mode.

10.3.21 RRU3201 Technical Specifications Added power consumption for the whole basestation.








10.4.1 BTS3900 EngineeringSpecifications

The following note is added to the standardswith which the BTS3900 complies with: TheBTS3900 complies with the followingstandards. If interference exists because theBTS3900 is installed near antennas or otherradio receive devices, you are advised toextend the distance between them or adjustthe location and direction of antennas.




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Topic Change Description10.4.2 BTS3900L EngineeringSpecifications

The following note is added to the standardswith which the BTS3900L complies with:The BTS3900L complies with the followingstandards. If interference exists because theBTS3900L is installed near antennas or otherradio receive devices, you are advised toextend the distance between them or adjustthe location and direction of antennas.


l Removed description about theBTS3900A (Ver.D1) cabinets, andrenamed the BTS3900A (Ver.D2)cabinets BTS3900A (Ver.D).

l Added the heat dissipation capability ofthe BTS3900A (Ver.B), BTS3900A(Ver.C), and BTS3900A (Ver.D)cabinets.

l The following note is added to thestandards with which the BTS3900Acomplies with: The BTS3900A complieswith the following standards. Ifinterference exists because theBTS3900A is installed near antennas orother radio receive devices, you areadvised to extend the distance betweenthem or adjust the location and directionof antennas.

10.4.4 BTS3900AL EngineeringSpecifications

l Added the heat dissipation capability ofthe BTS3900AL (Ver.A) cabinet.

l The following note is added to thestandards with which the BTS3900ALcomplies with: The BTS3900ALcomplies with the following standards. Ifinterference exists because theBTS3900AL is installed near antennas orother radio receive devices, you areadvised to extend the distance betweenthem or adjust the location and directionof antennas.

10.4.5 DBS3900 EngineeringSpecifications

The following note is added to the standardswith which the DBS3900 complies with: TheDBS3900 complies with the followingstandards. If interference exists because theDBS3900 is installed near antennas or otherradio receive devices, you are advised toextend the distance between them or adjustthe location and direction of antennas.




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Topic Change Description10.4.6 BTS3900C EngineeringSpecifications

l Added the heat dissipation capability ofthe BTS3900C (Ver.C) cabinet.

l The following note is added to thestandards with which the BTS3900Ccomplies with: The BTS3900C complieswith the following standards. Ifinterference exists because theBTS3900C is installed near antennas orother radio receive devices, you areadvised to extend the distance betweenthem or adjust the location and directionof antennas.


05 (2012-09-15)This is issue 05.Compared with issue 04 (2012-08-05), this issue includes the following new topics:l 10.3.7 RRU3824 Technical Specificationsl 10.3.8 RRU3826 Technical SpecificationsCompared with issue 04 (2012-08-05), this issue incorporates the following changes:

Topic Change Description4.1.1 BBU3900 Deleted the LBBPb.4.1.2 RFU l Modified the limitations on using RFUs

together with cabinets.l Added the hybrid configuration rule to

radio frequency (RF) modules.4.1.3 RRU l Added description about the RRU3824

and RRU3826.l Modified the limitations on using RRUs

together with cabinets.l Added the hybrid configuration rule to

radio frequency (RF) modules.4.2 BTS3900 Added description about the BTS3900

(Ver.D) cabinet.4.3 BTS3900L Added description about the BTS3900L

(Ver.D) cabinet.




11

Topic Change Description4.4 BTS3900A Added description about the BTS3900A

(Ver.D1) and BTS3900A (Ver.D2) cabinets.4.6 DBS3900 Added description about the Ver.D series

cabinets.8.1 GBTS CPRI-based Topologies l Removed MRFU V3 modules.

l Added specifications for CPRI ports onthe UBRI board.

8.2 NodeB CPRI-based Topologies Added specifications for CPRI ports on theRRU3824 and RRU3826.

8.4.2 CPRI Specifications Removed MRFU V3 modules.Commissioning Mode Optimized the MBTS Commissioning

mode table.10.2.1 GRFU Technical Specifications Added power consumption for GRFU V2

modules if these modules work with theBTS3900AL cabinet.

10.2.3 WRFU Technical Specifications Added the Power Backup DurationEstimated Based on Typical PowerConsumption of New Batteries (Hours)column to the Power consumption table.

10.3.3 RRU3804 Technical Specifications Added the Power Backup DurationEstimated Based on Typical PowerConsumption of New Batteries (Hours)column to the Power consumption ofDBS3900 with RRU3804 (AC) and Powerconsumption of BTS3900C with RRU3804(DC) tables.

10.3.5 RRU3806 Technical Specifications Added the Power Backup DurationEstimated Based on Typical PowerConsumption of New Batteries (Hours)column to the Power consumption ofDBS3900 with RRU3806 (AC) and Powerconsumption of BTS3900C with RRU3806(DC) tables.

10.3.13 RRU3801E TechnicalSpecifications

Added the Power Backup DurationEstimated Based on Typical PowerConsumption of New Batteries (Hours)column to the Power consumption ofDBS3900 with RRU3801E (AC) and Powerconsumption of BTS3900C withRRU3801E (DC) tables.




12

Topic Change Description10.4.1 BTS3900 EngineeringSpecifications

l Added engineering specifications for theBTS3900 (Ver.D) cabinet.

l Modified the surge protectionspecifications of DC power supply ports.

10.4.2 BTS3900L EngineeringSpecifications

l Added engineering specifications for theBTS3900L (Ver.D) cabinet.

l Modified the surge protectionspecifications of DC power supply ports.


Added engineering specifications for theBTS3900A (Ver.D1) and BTS3900A(Ver.D2) cabinets.

10.4.6 BTS3900C EngineeringSpecifications

l Modified the weight of the BTS3900C(Ver.C) cabinet.

l Modified the surge protectionspecifications of DC power supply portson a BTS3900C (Ver.C) cabinet.



Topic Change DescriptionAbout This Document For the BTS3900C, added an MBTS version

in the column Product Version.2 3900 Series Base Station Product Family Classified the BTS3900C as an MBTS

member.4.1.1 BBU3900 For the UTRPb4, LTE is removed from

Supported Mode.4.1.3 RRU For the RRU3942, added UL to the column

Supported Mode.4.7 BTS3900C Added description about the BTS3900C

(Ver.C) cabinet.IP-based Co-Transmission Removed description about the UTRPb4

(LTE).




13

Topic Change Description5.4.2 Logical Structure of a Dual-ModeBase Station

l Added UL to Working Mode of RFModules for the UL scenario.

l Added RXU (UL) to Logical structureof a dual-mode base station (UL).

5.4.3 Logical Structure of a Triple-ModeBase Station

l Added UL to Working Mode of RFModules.

l Added RXU (UL) to Logical structureof a triple-mode base station (GU+L)with BBU interconnection and Logicalstructure of a triple-mode base station(GU+UL) with BBU interconnection.

9.3.2 eNodeB Operation & MaintenanceFunctions

Added description about board-in-cabinettransportation.

9.4.3 Maintenance Between Modes Updated the table Maintenance operationsthat may affect services of other modes.

10.2.9 CRFUd Technical Specifications l Modified the receiver sensitivity.l Changed the upper limit for the total

bandwidth between the maximumfrequency and the minimum frequency ofthe spectrums for two carriers from 40MHz to 45 MHz.

10.3.26 RRU3229 Technical Specifications Modified dimensions.10.2.10 LRFU Technical Specifications Removed description about the AWS

frequency band.10.3.20 RRU3942 Technical Specifications Added UL-related specifications.10.3.22 RRU3203 Technical Specifications Modified weights.10.1 Technical Specifications of theBBU3900

For LTE, removed UTRPb4 informationfrom the column Transmission Port.

10.4.6 BTS3900C EngineeringSpecifications

Added specifications for the BTS3900C(Ver.C) cabinet.


03 (2012-06-29)This is issue 03.Compared with 02 (2012-06-20), this issue includes the following new topics:l WRFUe Technical Specifications




14

Compared with 02 (2012-06-20), this issue incorporates the following changes:Topic Change Description4.1.1 BBU3900 Added the USCUb14 and USCUb22.4.1.2 RFU Added the WRFUe.8.2 NodeB CPRI-based Topologies Added specifications for CPRI ports on the

WRFUe.10.3.20 RRU3942 Technical Specifications Updated the table Output power of

RRU3942 (850/1900 MHz, GU MSR, 40 W+ 80 W).

Compared with 02 (2012-06-20), this issue does not exclude any topics.

02 (2012-06-20)This is issue 02.Compared with 01 (2012-04-25), this issue does not include any new topics.Compared with 01 (2012-04-25), this issue incorporates the following changes:

Topic Change Description4.1.1 BBU3900 Optimized the description.7.1 GBTS Transport Network Topologies Added the networking with IP over E1/T1.IP-based Co-Transmission Optimized the figures.8.2 NodeB CPRI-based Topologies Removed the Number of Cells Supported

(Without MIMO or Four Antennas)column from the CPRI port specificationsof the WBBP board table.

8.3 eNodeB CPRI-based Topologies Modified the specifications of CPRI ports.8.4 MBTS CPRI-based Topologies l Modified the number of cascading levels

supported by the CPRI MUX topology.l Modified the Number of LTE Cells

Supported when the CPRI data rate is 4.9Gbit/s.

10.1 Technical Specifications of theBBU3900

Updated GSM capacity.




15

Topic Change Description10.2.6 MRFU Technical Specifications l For the MRFU V1: modified the receiver

sensitivity when it works in LTE mode.l For the MRFU V2: removed the receiver

sensitivity when it works in UMTS modeand operates in the 1800 MHz frequencyband; modified the receiver sensitivitywhen it works in LTE mode.

10.2.7 MRFUd Technical Specifications Modified the receiver sensitivity when itworks in UMTS mode and operates in the1800 MHz frequency band; modified thereceiver sensitivity when it works in LTEmode.

10.2.8 MRFUe Technical Specifications l Modified the receiver sensitivity when itworks in UMTS mode and operates in the1800 MHz frequency band; modified thereceiver sensitivity when it works in LTEmode.

l Updated the Output power of MRFUe(900/1800 MHz, GL MSR) table.

10.3 Technical Specifications of RRUs Updated the operating environment standardsfor RRUs.

10.3.14 RRU3908 Technical Specifications l For the RRU3908 V1: modified thereceiver sensitivity when it works in LTEmode; added the power consumptionwhen it operates in the 1800 MHzfrequency band.

l For the RRU3908 V2: modified thereceiver sensitivity when it works in GSMmode and operates in the 850 MHzfrequency band; modified the receiversensitivity when it works in LTE mode;updated the Output power of RRU3908V2 (850/900 MHz, GU MSR) table.

10.3.15 RRU3926 Technical Specifications l Modified the receiver sensitivity when itworks in UMTS mode and operates in the1800 MHz frequency band.

l Added the note "hardware ready" to radiofrequency (RF) modules that support fiveor six UMTS carriers.

l Added the power consumption.




16

Topic Change Description10.3.16 RRU3928 Technical Specifications Modified the receiver sensitivity when it

works in UMTS mode and operates in the1800 MHz frequency band; modified thereceiver sensitivity when it works in LTEmode.

10.3.17 RRU3929 Technical Specifications Modified the receiver sensitivity when itworks in UMTS mode and operates in the1800 MHz frequency band; modified thereceiver sensitivity when it works in LTEmode.

10.3.20 RRU3942 Technical Specifications l Added specifications when it operates inthe 850 MHz frequency band.

l Modified the receiver sensitivity when itworks in UMTS mode and operates in the1800 MHz frequency band; modified thereceiver sensitivity when it works in LTEmode.

l Updated the Output power of RRU3942(850/1900 MHz, single-mode, 40 W + 80W) table.

l Modified the power consumption.10.3.28 RRU3841 Technical Specifications l Updated the output power.

l Updated the environmental specificationsof an RRU3841.

Compared with 01 (2012-04-25), this issue does not exclude any topics.

01 (2012-04-25)This is issue 01.Compared with Draft B (2012-03-20), this issue does not include any new topics.Compared with Draft B (2012-03-20), this issue incorporates the following changes:

Topic Change Description4.1.3 RRU Removed UL from Applicable Mode for the

RRU3942.4.6 DBS3900 Optimized the description.




17

Topic Change Description5.4.2 Logical Structure of a Dual-ModeBase Station

l Adjusted the table Typical scenarios fora dual-mode base station.

l Removed RXU (UL) from Logicalstructure of a dual-mode base station(UL).

5.4.3 Logical Structure of a Triple-ModeBase Station

l Removed UL from Working Mode of RFModules.

l Removed RXU (UL) from Logicalstructure of a triple-mode base station(GU+L) with BBU interconnection andLogical structure of a triple-mode basestation (GU+UL) with BBUinterconnection.

6.3 eNodeB Clock Synchronization Modes Added the note: When the Clock WorkingMode is set to AUTO(Auto), it does not takeeffect on an eNodeB, and each eNodeB canbe configured with only one type of externalclock source.

6.4 MBTS Clock Synchronization Modes Added the note: In an MBTS, the ClockWorking Mode cannot be set to AUTO(Auto), and each SiteUnit can be configuredwith only one type of external clock source.

6.4.2 Common Reference Clock Mode Optimized the description.TDM-based Co-Transmission Changed the title to TDM-based co-

transmission.IP-based Co-Transmission Modified the description about co-

transmission through backplaneinterconnection. Added the figure IP-basedco-transmission (Single BBU, GUbackplane interconnection), the figure IP-based co-transmission (Single BBU, ULbackplane interconnection), and the figureIP-based co-transmission (BBUinterconnection).

9.1.2 GBTS Operation & MaintenanceFunctions

Added the note: The security of the USBloading port is ensured by encryption.

9.3.2 eNodeB Operation & MaintenanceFunctions

Added the note: The security of the USBloading port is ensured by encryption.




18

Topic Change DescriptionCommon Part Management Added the notes:

l For the UTRPc board, the SiteUnitpriority descends from eNodeB, toNodeB, and then to GBTS.

l Loading control rights cannot take effectand none of the SiteUnits of an MBTSmanages software of common parts if thefollowing configuration conflicts ariseand each SiteUnit does not work inengineering mode.

Software Upgrade l Added the note: The security of the USBloading port is ensured by encryption.

l Added the note: During a one-sidedupgrade, start event of common parts canbe reported only by the SiteUnit that isbeing upgraded.

Commissioning Mode Added the note: The security of the USBloading port is ensured by encryption.

Alarm Management l Added the description: Alarms reportedby unilaterally managed common partsmay affect the operation of otherSiteUnits. On the Browse CurrentAlarm tab page, the AdditionalInformation column lists theRAT_INFO and AFFECTED_INFOinformation. With the information,maintenance personnel can know themode information about the base stationwhere the alarm is generated and themodes that are affected by the alarm.

l Added the Browse Current Alarm tabpage of the M2000.




19

Topic Change Description9.4.3 Maintenance Between Modes l Modified the operation impact for

Resetting a board and Resetting a boardin power-off mode: When the CPRI-based topology on an MBTS uses thedual-star topology, services of the othermodes may be interrupted if one maincontrol board is abnormally reset or theboard is removed and inserted again.

l Added the operation impact for Resettinga base station: During an MBTS reset,start event of common parts can beobserved by the related managingSiteUnits.

10.1 Technical Specifications of theBBU3900

Updated the maximum number of UEs inRRC_CONNECTED mode per eNodeB.

10.2 Technical Specifications of RFUs Added the size and weight of the RFU.10.2.4 WRFUd Technical Specifications Updated the output power.10.2.11 LRFUe Technical Specifications Updated the power consumption.10.3.20 RRU3942 Technical Specifications Removed UL-related specifications.10.3.21 RRU3201 Technical Specifications Updated the receiver sensitivity.10.3.28 RRU3841 Technical Specifications l Updated the receiver sensitivity.

l Updated the weight.

Compared with Draft B (2012-03-20), this issue does not exclude any topics.

Draft B (2012-03-20)This is the release of Draft B.Compared with Draft A (2012-02-10), this issue does not include any new topics.Compared with Draft A (2012-02-10), this issue incorporates the following changes:

Topic Change Description4.1.3 RRU Removed RRU3223.8.3 eNodeB CPRI-based Topologies Removed RRU3223 specifications.8.4 MBTS CPRI-based Topologies Updated the specifications of the CPRI MUX

topology.10.1 Technical Specifications of theBBU3900

Updated the operating temperatures andsurge protection specifications.




20

Topic Change Description10.2 Technical Specifications of RFUs Added receiver sensitivity and power

consumption specifications for LTE.10.3 Technical Specifications of RRUs Added receiver sensitivity and power

consumption specifications for LTE.10.4 Engineering Specifications Updated the input power values, weights,

operating temperatures and surge protectionspecifications.

Compared with Draft A (2012-02-10), this issue excludes the following topic:l RRU3223 technical specifications

Draft A (2012-02-10)This is the release of Draft A.This issue includes the following new topics, compared with issue 05 (2011-11-30) of MBTSV100R004, issue 07 (2011-11-30) of GSM V100R013C00, issue 07 (2011-11-30) of WCDMAV200R013C00, and issue 03 (2011-12-24) of LTE V100R004C00:l 2 3900 Series Base Station Product Familyl 4 About 3900 Series Base Stationsl 10.1 Technical Specifications of the BBU3900l 10.2.9 CRFUd Technical Specificationsl 10.3.10 RRU3829 Technical Specificationsl 10.3.15 RRU3926 Technical Specificationsl 10.3.20 RRU3942 Technical Specificationsl 10.3.26 RRU3229 Technical Specificationsl 10.3.28 RRU3841 Technical Specificationsl RRU3223 technical specificationsl 10.4 Engineering Specificationsl 11.1 GBTS ReliabilityCompared with issue 05 (2011-11-30) of MBTS V100R004, this issue incorporates the followingchanges:

Topic Change Description5.4 MBTS Logical Structure l Added the description about BBU

interconnection and inter-BBU SDR.l Added the description about logical

structures when BBU interconnection isapplied.




21

Topic Change Description6.4 MBTS Clock Synchronization Modes l Optimized the description.

l Added the description about the commonreference clock mode when BBUinterconnection is applied.

IP-based Co-Transmission l Optimized the description.l Added the description about IP-based co-

transmission through backplaneinterconnection.

8.4 MBTS CPRI-based Topologies l Added the figure for the dual-startopology with inter-BBU SDR applied.

l Added the description about the CPRIMUX topology.

l Added the number of supported cellswhen different CPRI data rates are used.

10.2.6 MRFU Technical Specifications Updated the supported modes, frequencybands, and RF specifications.

10.2.7 MRFUd Technical Specifications Updated RF specifications.10.2.8 MRFUe Technical Specifications Updated the supported modes, frequency

bands, and RF specifications.10.3.14 RRU3908 Technical Specifications Updated the supported modes, frequency

bands, and RF specifications.10.3.16 RRU3928 Technical Specifications Updated RF specifications.10.3.17 RRU3929 Technical Specifications Updated the supported modes, frequency

bands, and RF specifications.Common Part Management l Optimized the description.

l Added the description about modepriority.

Configuration Management Updated the initial configuration methods.Software Upgrade Updated the upgrade scenarios.Commissioning Mode Updated the commissioning methods.Alarm Management l Optimized the description.

l Updated the alarm management methods.Mode Evolution Updated typical evolution scenarios.9.4.3 Maintenance Between Modes Added the operations: modifying/removing/

adding control links to the maintenanceoperations performed at all SiteUnits.




22

Topic Change Description11.4 MBTS Reliability Updated the description about reliability.

Compared with issue 07 (2011-11-30) of GSM V100R013C00, this issue incorporates thefollowing changes:

Topic Change Description6.1 GBTS Clock Synchronization Modes Optimized the GBTS clock synchronization

mode.

Compared with issue 07 (2011-11-30) of WCDMA V200R013C00, this issue incorporates thefollowing changes:

Topic Change Description5.2 NodeB Logical Structure l Added the description about BBU

interconnection.l Added the description about logical

structures when BBU interconnection isapplied.

6.2 NodeB Clock Synchronization Modes Optimized the NodeB clock synchronizationmode.

7.2 NodeB Transport Network Topologies l Optimized the description.l Added restrictions to transport network

topologies when BBU interconnection isapplied.

8.2 NodeB CPRI-based Topologies l Optimized the description.l Added the description about the inter-

board cold backup ring topology.

Compared with issue 03 (2011-12-24) of LTE V100R004C00, this issue incorporates thefollowing changes:

Topic Change Description5.3 eNodeB Logical Structure Removed the logical structure of the TDD

eNodeB.6.3 eNodeB Clock Synchronization Modes Optimized the eNodeB clock synchronization

mode.




23

Topic Change Description8.3 eNodeB CPRI-based Topologies l Optimized the description about CPRI-

based topologies.l Removed the description about TDD-

specific CPRI-based topologies.l Added specifications for CPRI ports.

Compared with issue 05 (2011-11-30) of MBTS V100R004, this issue excludes the followingtopics:l Overviewl MBTS productsl MBTS hardware configurationsl MBTS surge protection specificationsCompared with issue 07 (2011-11-30) of GSM V100R013C00, this issue excludes the followingtopics:l RXU Configurationl Logical Structure of the BBUl BBU Transmission Portsl Logical Structure of the RRUl Logical Structure of the RFUl Antenna SystemCompared with issue 07 (2011-11-30) of WCDMA V200R013C00, this issue excludes thefollowing topics:l Logical Structure of the BBU3900l Logical Structure of the RRUl Logical Structure of the RFUl Logical Structure of the RHUB3808l Logical Structure of the pRRU3801l Hardware Configurations of the NodeBl NodeB Configuration ManagementCompared with issue 03 (2011-12-24) of LTE V100R004C00, this issue excludes the followingtopics:l Environmental Monitoring Principles of the eNodeBl Functions of the eNodeBl Typical Hardware Configurations of the eNodeBl Technical Specifications for RRU3232




24

2 3900 Series Base Station Product FamilyHuawei 3900 series base stations adopt a uniform modular design for multiple radio networksystems. These base stations support the co-existence of devices serving different modes at thesame site, sharing of base station resources, and the unified operation and maintenance method.With these merits, operators' requirement of evolution to multi-mode base stations becomesfeasible.Figure 2-1 shows the 3900 series base station product family.

Figure 2-1 3900 series base station product family

3900 series base stations can be classified into single- and multi-mode base stations based onthe mode that they support.l Single-mode base stations: One such base station provides only one type of the GSM,

UMTS, and LTE services.l Multi-mode base stations: One such base station provides two or all three types of the GSM,

UMTS, and LTE services. Multi-mode base stations are further classified into thefollowing: Dual-mode base stations: One such base station provides two types of the GSM, UMTS,

and LTE services, such as GSM and UMTS (GU), GSM and LTE (GL), or UMTS andLTE (UL) services.

3900 Series Base StationTechnical Description 2 3900 Series Base Station Product Family


25

Triple-mode base stations: One such base station provides all three types of the GSM,UMTS, and LTE (GUL) services.

Based on application scenarios and installed hardware, 3900 series base stations can be classifiedinto indoor macro base stations (BTS3900 and BTS3900L), outdoor macro base stations(BTS3900A and BTS3900AL), a distributed base station (DBS3900), micro base stations(BTS3900C, BTS3900E, and BTS3902E), and a Pico base station (BTS3900B). Figure 2-2shows the appearance of all types of 3900 series base stations.

Figure 2-2 Appearance of all types of 3900 series base stations

3900 Series Base StationTechnical Description 2 3900 Series Base Station Product Family


26

3 Network StructureAbout This Chapter

This section describes the position of a 3900 series base station in a network.

3.1 GBTS in the NetworkThe base station subsystem (BSS) consists of the base station controller (BSC), GSM basetransceiver station (GBTS), and operation and maintenance center (OMC). This sectiondescribes the position of the GBTS in the network and functions of each network element (NE).3.2 NodeB in the NetworkThe radio access network (RAN) system consists of the NodeB, radio network controller (RNC),and operation and maintenance center (OMC). This section describes the position of NodeBsand functions of network elements (NEs).3.3 eNodeB in the NetworkThe Long Term Evolution - System Architecture Evolution (LTE-SAE) system consists of theevolved universal terrestrial radio access network (E-UTRAN) and evolved packet core (EPC).This section describes the position of E-UTRAN NodeBs (eNodeBs) and the functions ofnetwork elements (NEs).3.4 MBTS in the NetworkThe SingleRAN system includes the multi-mode base station controller (MBSC), multi-modebase transceiver station (MBTS), and operation and maintenance center (OMC). This sectiondescribes the position of an MBTS in the network and functions of each network element (NE).

3900 Series Base StationTechnical Description 3 Network Structure


27

3.1 GBTS in the NetworkThe base station subsystem (BSS) consists of the base station controller (BSC), GSM basetransceiver station (GBTS), and operation and maintenance center (OMC). This sectiondescribes the position of the GBTS in the network and functions of each network element (NE).

GBTS in the networkFigure 3-1 shows the position of the GBTS in the network.

Figure 3-1 GBTS in the network

GBTS: GSM base transceiver station BSC: base station controller BSS: base station subsystemMS: mobile station OMC: operation and maintenance center -

Functions of each NE are as follows:



28

GBTSControlled by the BSC, the GBTS is a base transceiver station that serves a cell. The GBTScommunicates with the BSC through the Abis interface, over which radio channels are converted,and communicates with MSs through the Um interface, over which user data and controllingsignals are transmitted and relevant control functions are implemented. The GBTS providesinterfaces for communicating with the BSC, manages radio resources, provides operation andmaintenance functions, and processes signaling.

BSCThe BSC manages radio resources and GBTSs, controls power and handovers, and performtraffic measurements.

OMCThe OMC includes the M2000, Configuration Management Express (CME), local maintenanceterminal (LMT), and site maintenance terminal (SMT). The OMC allows you to centrallymanage and maintain GBTSs and BSCs.

3.2 NodeB in the NetworkThe radio access network (RAN) system consists of the NodeB, radio network controller (RNC),and operation and maintenance center (OMC). This section describes the position of NodeBsand functions of network elements (NEs).

NodeB in the NetworkFigure 3-2 shows the position of NodeBs in the network.



29

Figure 3-2 NodeB in the network

NodeB: WCDMA base station RAN: radio access network RNC: radio network controllerOMC: operation and maintenance center UE: user equipment -

As shown in Figure 3-2, NodeBs communicate with the UEs, RNC, and OMC over differentinterfaces.The functions of each NE are as follows:

NodeBAs a WCDMA base station, a NodeB consists of the wireless transceiver and basebandprocessing unit. The NodeB communicates with the RNC and UEs over the Iub interface andUu interface, respectively. It performs physical layer protocol processing, including frequencyspreading and despreading, modulation and demodulation, channel coding and decoding, andconversion between baseband and radio frequency (RF) signals.

RNCAn RNC performs radio resource control (RRC) on the establishment and removal of RRCconnections, handover, and macro diversity combining.



30

OMCThe OMC includes the M2000, Configuration Management Express (CME), and localmaintenance terminal (LMT). Users can use the OMC to centrally manage and maintain NodeBs.

3.3 eNodeB in the NetworkThe Long Term Evolution - System Architecture Evolution (LTE-SAE) system consists of theevolved universal terrestrial radio access network (E-UTRAN) and evolved packet core (EPC).This section describes the position of E-UTRAN NodeBs (eNodeBs) and the functions ofnetwork elements (NEs).

eNodeB in the NetworkFigure 3-3 shows the position of eNodeBs in the network.

Figure 3-3 eNodeB in the network

MME: mobility management entity S-GW: serving gateway UE: user equipment

As shown in Figure 3-3, an eNodeB is radio access equipment in the LTE-SAE system. One ormore eNodeBs constitute an E-UTRAN. An eNodeB communicates with a UE, another eNodeB,or the EPC through the Uu, X2, or S1 interface, respectively.The following sections describe functions of each network element (NE).

eNodeBAn eNodeB has the following functions:



31

l Radio resource management, including radio bearer control, radio admission control,connection mobility control, and scheduling

l Packet compression and cipheringl Routing of user-plane data towards an S-GWl MME selectionl Scheduling and transmission of broadcast information and paging messagesl Measurement and measurement reporting configuration

MMEAn MME has the following functions:l Paging message distributionl Security controll Mobility management in idle model SAE bearer controll Ciphering and integrity protection of non-access stratum (NAS) signaling

S-GWAn S-GW has the following functions:l Termination of user-plane packets that are generated for paging reasonl Support for user-plane handovers caused by UE mobility

OMCThe operation and maintenance center (OMC) includes the M2000, Configuration ManagementExpress (CME), and local maintenance terminal (LMT). Users can use the OMC to manage andmaintain eNodeBs.

3.4 MBTS in the NetworkThe SingleRAN system includes the multi-mode base station controller (MBSC), multi-modebase transceiver station (MBTS), and operation and maintenance center (OMC). This sectiondescribes the position of an MBTS in the network and functions of each network element (NE).

MBTS in the networkFigure 3-4 shows the position of an MBTS in the network.



32

Figure 3-4 MBTS in the network

MBTS: multi-mode base transceiverstation

MBSC: multi-mode base stationcontroller

OMC: operation and maintenancecenter

MME: mobility management entity S-GW: serving gateway UE: user equipmentMS: mobile station - -

As shown in Figure 3-4, the MBTS communicates with the UE, MS, MBSC, MME or S-GWand OMC using different interfaces.The following describes functions of each NE:

MBTSThe MBTS incorporates functions of the GBTS, NodeB and eNodeB. The MBTS is connectedto a network where GSM, UMTS, and LTE services co-exist as an independent NE. An MBTSconsists of multiple SiteUnits. Physically, each SiteUnit corresponds to the related boards andmodules. Logically, each SiteUnit corresponds to the related NE. As shown in Figure 3-4, theMBTS consists of three SiteUnits, which logically correspond to GBTS, NodeB, and eNodeB,respectively. Physically, the three SiteUnits correspond to GSM boards and modules, UMTSboards and modules, and LTE boards and modules, respectively. In this technical description,SiteUnits in a triple-mode base station are GBTS, NodeB, and eNodeB.



33

MBSCThe MBSC incorporates functions of the radio network controller (RNC) and base stationcontroller (BSC). The MBSC is connected to a network where GSM and UMTS services co-exist as an independent NE. The MBSC is connected to the GBTS and NodeB using the Abisand Iub interfaces, respectively.

MME/S-GWThe MME or S-GW is located in the evolved packet core (EPC) and is connected to the eNodeBusing the S1 interface.

OMCThe OMC includes the M2000, Configuration Management Express (CME), local maintenanceterminal (LMT), Service Maintenance Terminal (SMT), and so on. Users can use the OMC tocentrally manage and maintain MBTSs and MBSCs.



34

4 About 3900 Series Base StationsAbout This Chapter

The 3900 series base stations include macro base stations (BTS3900, BTS3900L, BTS3900A,and BTS3900AL), a distributed base station (DBS3900), micro base stations (BTS3900C,BTS3900E, and BTS3902E), and a Pico base station (BTS3900B). Different types of basestations can be used in various scenarios to achieve fast deployment and low operatingexpenditure (OPEX). This technical description focuses on macro base stations, the distributedbase station DBS3900, and the micro base station BTS3900C. For a description of the othertypes of 3900 series base stations, see the production documentation of the base station inquestion.

4.1 Basic ModulesWith a modular design, 3900 series base stations consist of three basic modules: the BBU3900,radio frequency unit (RFU), and remote radio unit (RRU). Radio frequency (RF) modulesinclude RFUs and RRUs.4.2 BTS3900As an indoor macro base station, the BTS3900 is characterized by a large capacity and smallsize and can be easily expanded.4.3 BTS3900LAs an indoor macro base station, the BTS3900L is characterized by a large capacity and highintegration and can be easily expanded.4.4 BTS3900AAs an outdoor macro base station, the BTS3900A is applicable to the outdoor centralizedinstallation scenario.4.5 BTS3900ALAs an outdoor macro base station, the BTS3900AL is characterized by space saving and highintegration and can be easily evolved.4.6 DBS3900As a distributed base station, the DBS3900 is applicable to installation scenarios where widecoverage is required or base station deployment is difficult.4.7 BTS3900C

3900 Series Base StationTechnical Description 4 About 3900 Series Base Stations


35

The BTS3900C is a mini outdoor base station and applies to hot spots, tunnels, and borders.



36

4.1 Basic ModulesWith a modular design, 3900 series base stations consist of three basic modules: the BBU3900,radio frequency unit (RFU), and remote radio unit (RRU). Radio frequency (RF) modulesinclude RFUs and RRUs.

4.1.1 BBU3900The BBU3900 (BBU for short) is a baseband processing unit and centrally manages an entirebase station.

FunctionThe BBU provides the following functions:l Centrally manages an entire base station in terms of operation and maintenance (O&M)

and signaling processing, and provides the system clock.l Processes uplink and downlink baseband signals and provides common public radio

interface (CPRI) ports for communication with radio frequency (RF) modules.l Provides ports for communication with environment monitoring devices, and receives and

forwards signals from the environment monitoring devices.l Provides physical ports for communication between a base station and the transport

network.l Provides the O&M channel connecting a base station to the Operation and Maintenance

Center (OMC).

Boards and modules in the BBUWith a case structure, the BBU can house different types of boards and modules, as shown inTable 4-1.

Table 4-1 Boards and modules in the BBUType

Function Board ApplicableMode

Remarks

Mainprocessingtransmissionunit

Transmits signals,manages an entirebase station,monitors powersupply situation,provides thereference clockand O&M ports.

GSM Transmission &Timing &Management Unit(GTMU) falls into thefollowing types:l GTMUl GTMUb

GSM Unless otherwisespecified, theGTMU in thisdocumentindicates theGTMU orGTMUb.

WCDMA MainProcessing &Transmission unit(WMPT)

UMTS N/A


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