Huawei BTS 3900 Technical description

3900 Series GSM Base StationV100R013C00

Technical Description

Issue 12

Date 2012-12-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2012. 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.com

Email: [email protected]

Issue 12 (2012-12-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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http://www.huawei.com

mailto:[email protected]

About This Document

OverviewThis document provides information about 3900 series GSM base stations such as systemprinciples, operation and maintenance, clock synchronization schemes, and surge protectionspecifications, aiming to enable operators to comprehensively understand functions of the 3900series GSM base stations.

Product VersionThe following table lists product versions involved in this document.

Product Name Product Version

BTS3900 GSM (BTS3900 for short) V100R013C00

BTS3900A GSM (BTS3900A for short) V100R013C00

BTS3900L GSM (BTS3900L for short) V100R013C00

DBS3900 GSM (DBS3900 for short) V100R013C00

Intended AudienceThis document is intended for:

l Network plannersl Field engineersl System engineers

Organization1 Changes in the 3900 Series GSM Base Station Technical Description

3900 Series GSM Base StationTechnical Description About This Document


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This section describes changes in the 3900 Series GSM Base Station Technical Description ofeach version.

2 Overview

3900 series base stations adopt the cutting-edge modular design for different modes and aremanaged by various systems. With simple components, they can be installed and deployed easilyand fast. With comprehensive functions and remarkable performance, they can meetrequirements in various scenarios. In addition, they are diversified by flexibly combiningfunctional modules and auxiliary devices.

3 BTS System Principle

The BTS consists of the BBU3900 (BBU for short), RF modules, and the antenna system. Itsfunctional subsystem includes the control system, transport system, monitoring system, RFsystem, antenna system, and power supply system.

4 Control and Transport Systems

The functions of the control and transport systems are provided by the BBU. The control systemmanages the entire BTS system in a centralized manner, including signaling processing,operation and maintenance, and system clock. The transport system provides physical portsconnecting the BTS and the transport network.

5 RF System

The functions of the RF system are provided by RF modules including the radio frequency units(RFUs) that are used in macro base stations and remote radio units (RRUs) that are used indistributed base stations. The RF system performs modulation, demodulation, data processing,and combination and division of RF and baseband signals.

6 Antenna System

The antenna system consists of antennas, feeders, jumpers, the Tower Mounted Amplifier(TMA), the Bias Tee (BT), and the GSM Antenna and TMA Control Module (GATM). Ittransmits and receives RF signals.

7 Operation and Maintenance

Operation and Maintenance (OM) covers management, monitoring, and maintenance of thesoftware, hardware, and configuration of the BTSs. In addition, diversified OM modes areprovided in various scenarios.

8 External Reference Clock Sources

The BTS supports multiple external reference clock sources, including the IP reference clock,E1/T1 reference clock, synchronous Ethernet reference clock, BITS reference clock, and GPS/RGPS reference clock. If a BTS fails to obtain clock signals, it works in free-run mode for acertain period of time.

9 Surge Protection Specifications

This section provides surge protection specifications for the BBU, RF modules, and each typeof base stations.

10 Technical Specifications

This section provides technical specifications for RF modules.



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ConventionsSymbol Conventions

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

Symbol Description

Indicates 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 Conventions

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

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are inboldface. For example, log in as user root.

Italic Book titles are in italics.

Courier New Examples of information displayed on the screen are inCourier New.

Command Conventions

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


Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

[ ] Items (keywords or arguments) in brackets [ ] are optional.



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{ x | y | ... } Optional items are grouped in braces and separated byvertical bars. One item is selected.

[ x | y | ... ] Optional items are grouped in brackets and separated byvertical bars. One item is selected or no item is selected.

{ x | y | ... }* Optional items are grouped in braces and separated byvertical 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 Conventions

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


Boldface Buttons, menus, parameters, tabs, window, and dialog titlesare in boldface. For example, click OK.

> Multi-level menus are in boldface and separated by the ">"signs. For example, choose File > Create > Folder.

Keyboard Operations

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

Format Description

Key Press the key. For example, press Enter and press Tab.

Key 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 meansthe two keys should be pressed in turn.

Mouse Operations

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

Action Description

Click Select and release the primary mouse button without movingthe pointer.



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Action Description

Double-click Press the primary mouse button twice continuously andquickly without moving the pointer.

Drag Press and hold the primary mouse button and move thepointer to a certain position.



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Contents

About This Document.....................................................................................................................ii

1 Changes in the 3900 Series GSM Base Station Technical Description...............................1

2 Overview.........................................................................................................................................8

3 BTS System Principle.................................................................................................................13

4 Control and Transport Systems................................................................................................154.1 Logical Structure of the BBU...........................................................................................................................164.2 BBU Transmission Ports..................................................................................................................................174.3 Transport Network Topologies.........................................................................................................................18

5 RF System......................................................................................................................................245.1 Logical Structure of the RRU...........................................................................................................................265.2 Logical Structure of the RFU...........................................................................................................................305.3 CPRI-Based Topologies...................................................................................................................................325.4 RRU3004 Configuration...................................................................................................................................365.5 Configurations of RRU3008, RRU3908, RRU3928, RRU3929, RRU3942, RRU3926, and the MRFUd................................................................................................................................................................................425.6 DRFU Configuration........................................................................................................................................495.7 Configurations of the GRFU/MRFU/MRFUe..................................................................................................585.8 Hybrid Configuration of RF Modules..............................................................................................................64

6 Antenna System...........................................................................................................................68

7 Operation and Maintenance......................................................................................................707.1 OM Modes of the BTS.....................................................................................................................................717.2 OM Functions of the BTS................................................................................................................................71

8 External Reference Clock Sources............................................................................................74

9 Surge Protection Specifications................................................................................................76

10 Technical Specifications...........................................................................................................8410.1 Technical Specifications for RFUs.................................................................................................................85

10.1.1 DRFU Technical Specifications............................................................................................................8510.1.2 GRFU Technical Specifications............................................................................................................8810.1.3 Technical Specifications for MRFU......................................................................................................94

3900 Series GSM Base StationTechnical Description Contents


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10.1.4 Technical Specifications for MRFUd..................................................................................................10810.1.5 Technical Specifications for MRFUe..................................................................................................122

10.2 Technical Specifications for RRUs..............................................................................................................13010.2.1 RRU3004 Technical Specifications.....................................................................................................13010.2.2 RRU3008 Technical Specifications.....................................................................................................13610.2.3 Technical Specifications for RRU3908...............................................................................................14510.2.4 Technical Specifications for RRU3928...............................................................................................16110.2.5 Technical Specifications for RRU3929...............................................................................................17210.2.6 Technical Specifications for RRU3942...............................................................................................18510.2.7 Technical Specifications for RRU3926...............................................................................................195

3900 Series GSM Base StationTechnical Description Contents


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1 Changes in the 3900 Series GSM Base StationTechnical Description

This section describes changes in the 3900 Series GSM Base Station Technical Description ofeach version.

12 (2012-12-30)

This is issue 12.

Compared with issue 11 (2012-10-20), this issue not include any new topics.

Compared with issue 11 (2012-10-20), this issue incorporates the following changes:

Topic Description

10.1 Technical Specifications for RFUs Added the maximum output power supportedby the RF modules.

10.1.2 GRFU Technical Specifications Modified power consumption of the GRFU.

10.2 Technical Specifications for RRUs Added the maximum output power supportedby the RF modules.

Compared with issue 11 (2012-10-20), this issue does not exclude any topics.

11 (2012-10-20)

This is issue 11.



Topic Description

5.8 Hybrid Configuration of RF Modules Modified the content for RFUs.

3900 Series GSM Base StationTechnical Description

1 Changes in the 3900 Series GSM Base Station TechnicalDescription


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Topic Description

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

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


10 (2012-09-27)

This is issue 10.

Compared with issue 09 (2012-06-30), this issue includes the following new topic:

l 5.8 Hybrid Configuration of RF Modules


Topic Description

9 Surge Protection Specifications Added the surge protection specifications forthe BTS3900(Ver.D), BTS3900L(Ver.D)and BTS3900A(Ver.D) cabinet.

5.7 Configurations of the GRFU/MRFU/MRFUe

Removed MRFU V3 modules.


09 (2012-06-30)

This is issue 09.



Topic Description

5.5 Configurations of RRU3008,RRU3908, RRU3928, RRU3929,RRU3942, RRU3926, and the MRFUd

Modified the number of carriers supported bythe RRU3908 V1.

4.3 Transport Network Topologies Added the networking with IP over E1/T1.

10.2 Technical Specifications for RRUs Modified the operating environmentstandards for RRUs.




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Topic Description

10.1.5 Technical Specifications forMRFUe

Added specifications when it operates in the900 MHz frequency band.


08 (2012-05-20)

This is issue 08.



Topic Description

7.2 OM Functions of the BTS Added the note: The security of the USBloading port is ensured by encryption.


07 (2012-03-30)

This is issue 07.


l 10.2.7 Technical Specifications for RRU3926


Topic Description


Added the Configurations on an RRU3926.

5.3 CPRI-Based Topologies Added the specifications of CPRI ports on anRRU3926.


06 (2012-02-25)

This is issue 06.





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l 10.2.6 Technical Specifications for RRU3942


Topic Description


Added the Configurations on an RRU3942.

5.3 CPRI-Based Topologies Added the specifications of CPRI ports on anRRU3942.

10.1.1 DRFU Technical Specifications Updated surge protection specifications.

10.1.2 GRFU Technical Specifications Updated surge protection specifications.

10.1.3 Technical Specifications for MRFU Updated RF specifications.

10.1.4 Technical Specifications forMRFUd

Updated RF specifications.

10.1.5 Technical Specifications forMRFUe


10.2.1 RRU3004 Technical Specifications Added the standards with which an RRU3004complies

10.2.2 RRU3008 Technical Specifications Added the standards with which an RRU3008complies

10.2.3 Technical Specifications forRRU3908







05 (2011-11-30)

This is issue 05.



Topic Description

10 Technical Specifications Technical specifications has been updated.




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04 (2011-09-30)This is issue 04.


l 10.1 Technical Specifications for RFUsl 10.2 Technical Specifications for RRUs


Topic Description

9 Surge Protection Specifications Surge protection specifications for the portson RF modules has been deleted.


03 (2011-08-30)This is issue 03.

Compared with issue 02 (2011-06-25), this issue does not include any new topics.


Topic Description

9 Surge Protection Specifications VER.B of the cabinet is added.


02 (2011-06-25)This is issue 02.


l 5.5 Configurations of RRU3008, RRU3908, RRU3928, RRU3929, RRU3942,RRU3926, and the MRFUd

l 5.7 Configurations of the GRFU/MRFU/MRFUe


Topic Description

5.1 Logical Structure of the RRU Information about the RRU3929 is added.

5.2 Logical Structure of the RFU Information about the MRFUe is added.




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Topic Description

5.3 CPRI-Based Topologies Information about the RRU3929, MRFUe isadded.

9 Surge Protection Specifications Surge protection specifications for the portson the RRU3929, MRFUe are added.

Compared with issue 01 (2011-04-30), this issue excludes the following topic:

l Configurations of RRU3008, RRU3908, RRU3928, GRFU, MRFU, and the MRFUd

01 (2011-04-30)This is issue 01.

Compared with issue 07 (2011-03-30) of V100R012, this issue includes the following newtopics:

l 2 Overviewl 3 BTS System Principlel 4.2 BBU Transmission Portsl 5.2 Logical Structure of the RFUl 5.7 Configurations of the GRFU/MRFU/MRFUel 6 Antenna Systeml 7 Operation and Maintenance

Compared with issue 07 (2011-03-30) of V100R012, this issue incorporates the followingchanges:

Topic Description

5.1 Logical Structure of the RRU Information about the RRU3908 andRRU3928 is added.

5.3 CPRI-Based Topologies Information about the MRFU, MRFUd,RRU3908, and RRU3928 is added.

9 Surge Protection Specifications Surge protection specifications for the portson the BTS3900 (Ver.C), BTS3900L(Ver.C), BTS3900A (Ver.C), MRFU,MRFUd, RRU3908, and RRU3928 areadded.

Compared with issue 07 (2011-03-30) of V100R012, this issue excludes the following topics:

l DBS3900 Product Familyl System Architecture of the BTS3900l System Architecture of the BTS3900A




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l System Architecture of the BTS3900Ll Software Structure of the BTSl Logical Structure of the BTS3900l Logical Structure of the BTS3900Ll Logical Structure of the BTS3900Al DBS3900 Monitoring Schemesl BTS3900 Monitoring Systeml BTS3900A Monitoring Systeml BTS3900L Monitoring Systeml Signal Flow of the BTS3900/BTS3900Al Signal Flow of the BTS3900Ll Configuration of the BTS3900/BTS3900Al Configuration of the BTS3900Ll CPRI Cable Connections of the RRUsl RRU3008 Configurationl Typical Scenarios of the DBS3900 (with the DC RRU)l Typical Scenarios of the DBS3900 (with the AC RRU)




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2 Overview

3900 series base stations adopt the cutting-edge modular design for different modes and aremanaged by various systems. With simple components, they can be installed and deployed easilyand fast. With comprehensive functions and remarkable performance, they can meetrequirements in various scenarios. In addition, they are diversified by flexibly combiningfunctional modules and auxiliary devices.

BTS in the BSSThe base station subsystem (BSS) mainly consists of the base station controller (BSC) and thebase transceiver station (BTS), as shown in Figure 2-1.

3900 Series GSM Base StationTechnical Description 2 Overview


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Figure 2-1 BSS architecture

BTS TypesThere are four types of BTSs, that is, BTS3900, BTS3900A, BTS3900L, and DBS3900, meetingrequirements in various scenarios, as shown in Table 2-1.



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Table 2-1 BTS types

Name

Type Usage Scenario InputPower

CabinetCombination

Reference

BTS3900

Indoormacrobasestation

Indoor installationscenarios wheretraffic load isheavy, lease cost ofequipment room ishigh, or equipmentroom is space-limited.

l -48 VDC

l +24 VDC

l 220 VAC

l 110 VAC

l Single cabinetl Double

cabinets: Twocabinets areinstalled sideby side or twocabinets arestacked.

For informationabout usagescenarios andconfigurations ofcabinets, seeBTS3900(Ver.B)HardwareDescription,BTS3900(Ver.C)HardwareDescription andBTS3900(Ver.D)HardwareDescription.

BTS3900A

Outdoormacrobasestation

Outdoorinstallationscenarios wherewide coverage isrequired such ascities, suburbs, orrural areas.

l -48 VDC

l 220 VAC

l 110 VAC

l TMC11H +RFC

l APM30H +RFC (+IBBS+ TMC11H)

APM30H is apower cabinet,the RFC is a radiofrequencycabinet,TMC11H is atransmissioncabinet, and theIBBS is a batterycabinet. Forinformationabout usagescenarios andconfigurations ofcabinets, seeBTS3900A(Ver.B)HardwareDescription,BTS3900A(Ver.C)HardwareDescription andBTS3900A(Ver.D)HardwareDescription.



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Name


CabinetCombination

Reference

BTS3900L

Indoormacrobasestation

Indoor installationscenarios withlarge capacitywhere traffic loadis heavy, lease costof equipment roomis high, orequipment room isspace-limited.

-48 V DC Single cabinet For informationabout usagescenarios andconfigurations ofcabinets, seeBTS3900L(Ver.B)HardwareDescription,BTS3900L(Ver.C)HardwareDescription andBTS3900L(Ver.D)HardwareDescription.



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Name


CabinetCombination

Reference

DBS3900

Distributedbasestation

Outdoorinstallationscenarios wheresite deployment isdifficult and widecoverage isrequired.

l -48 VDC

l +24 VDC

l 220 VAC

l BBU +APM30H +RRU

l BBU +TMC11H +RRU

l BBU + 19-inch rack +RRU

l Indoor wall-mounted BBU+ RRU

l BBU + OMB+ RRU

l BBU + ICR +RRU

l BBU + IMB03+ RRU

APM30H is apower cabinet,TMC11H is atransmissioncabinet, theOMB is anoutdoor minibox, the ICR is anindoorcentralized rack,and IMB03 is anindoor mini box.For informationabout usagescenarios andconfigurations ofcabinets, seeBBU3900HardwareDescription,APM30H&TMC11H&IBBS200D&IBBS200T(Ver.B) ProductDescription,APM30H&TMC11H&IBBS200D&IBBS200T(Ver.C) ProductDescription,APM30H&TMC11H&IBBS200D&IBBS200T(Ver.D) ProductDescription andRRUxxxxHardwareDescription.NOTE

RRUxxxx refersto the model ofeach RRU.



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3 BTS System Principle

The BTS consists of the BBU3900 (BBU for short), RF modules, and the antenna system. Itsfunctional subsystem includes the control system, transport system, monitoring system, RFsystem, antenna system, and power supply system.

Figure 3-1 shows the BTS system principle.

Figure 3-1 BTS system principle

Functions of each system are as follows:

l Control system: Managing the entire BTS system in a centralized manner, includingoperation and maintenance, signaling processing, and system clock. For details, see section4 Control and Transport Systems.

l Transport system: Providing physical ports connecting the BTS and the transport networkand also provides maintenance channels connecting the BTS and the Operation and

3900 Series GSM Base StationTechnical Description 3 BTS System Principle


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Maintenance Center (OMC) to enable information exchange between the BTS and thetransport network or OMC. For details, see section 4 Control and Transport Systems.

l Monitoring system: Collecting external alarm information and reporting the informationto the control system. For details, see chapter Monitoring System in the HardwareDescription of the corresponding base station type.

l RF system: Processing RF and baseband signals. For details, see section 5 RF System.l Antenna system: Receiving uplink signals and transmitting downlink signals. For details,

see section 6 Antenna System.l Power supply system: Obtaining power from external power supply devices and providing

power for other subsystems of the BTS. For details, see chapter Power System in theHardware Description of the corresponding base station type.

3900 Series GSM Base StationTechnical Description 3 BTS System Principle


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4 Control and Transport Systems

About This Chapter

The functions of the control and transport systems are provided by the BBU. The control systemmanages the entire BTS system in a centralized manner, including signaling processing,operation and maintenance, and system clock. The transport system provides physical portsconnecting the BTS and the transport network.

4.1 Logical Structure of the BBUThe BBU consists of the main processing unit, BTS interface unit, high-speed interface unit,clock unit, and monitoring unit.

4.2 BBU Transmission PortsThe GTMU or UTRP board provides transmission ports to enable information exchange betweenthe BTS and the transport network.

4.3 Transport Network TopologiesTransport network topologies include TDM, IP, and High level Data Link Control (HDLC)network topologies. In reality, these topologies are combined to save transmission device costswithout deteriorating service quality.

3900 Series GSM Base StationTechnical Description 4 Control and Transport Systems


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4.1 Logical Structure of the BBUThe BBU consists of the main processing unit, BTS interface unit, high-speed interface unit,clock unit, and monitoring unit.

Figure 4-1 shows the logical structure of the BBU.

Figure 4-1 Logical structure of the BBU

The control system consists of the main processing unit while the transport system consists ofthe BTS interface unit and high-speed interface unit.

Main Processing Unit

The main processing unit manages the entire BTS system in a centralized manner, includingoperation and maintenance, signaling processing, and system clock. It provides the followingfunctions:

l Supports such protocols as UART, HDLC, and IP over FE.l Controls the BTS interface unit to enable communication between the BBU and the BSC.l Controls the High-speed interface unit to enable communication between the BBU and RF

modules.l Provides system clock for the BTS and obtains external clock signals.

BTS Interface Unit

The BTS interface unit enables information exchange between the BTS and the transport networkby providing the following functions:

l Connects the BTS with the BSC.l Exchanges data between the E1 link and the DBUS.



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l Synchronizes an upper-level clock with a lower-level clock.

High-Speed Interface Unit

The high-speed interface unit enables information exchange between the BBU and RF modulesby providing the following functions:

l Receives the uplink baseband data from RF modules.

l Transmits the downlink baseband data to RF modules.

Clock Unit

The clock unit provides the following functions:

l Provides system clock stemmed from high-precision clock sources for the BTS.

l Checks the phase-locked status, provides phase lock for the software, adjusts DA, andgenerates frame numbers.

Monitoring Unit

The monitoring unit collects external alarms and reports the alarms to the central processingunit.

4.2 BBU Transmission PortsThe GTMU or UTRP board provides transmission ports to enable information exchange betweenthe BTS and the transport network.

Table 4-1 provides the specifications of transmission ports on the GTMU and UTRP boards.

Table 4-1 Specifications of transmission ports on the GTMU and UTRP boards

TransmissionMode

Board Port Capacity

TDM over E1/T1 GTMU/GTMUb 1 4 ports

UTRPb4 1 4 ports

IP over E1/T1 GTMU/GTMUb 1 4 ports

Transmission overFE optical ports

GTMU/GTMUb 1 10 Mbit/s or 100Mbit/s

Transmission overFE electrical ports

GTMU/GTMUb 1 10 Mbit/s or 100Mbit/s

NOTEThe GTMU or GTMUb board is a mandatory board while the UTRPb4 board must be configured only whenmore than four E1s/T1s are required.



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4.3 Transport Network TopologiesTransport network topologies include TDM, IP, and High level Data Link Control (HDLC)network topologies. In reality, these topologies are combined to save transmission device costswithout deteriorating service quality.

TDM Network TopologyE1/T1 transmission is adopted for communication between the BTS and the BSC while TDMtransmission is adopted on the Abis interface. TDM network topology includes such networktopologies as chain, star, tree, and ring, as shown in Figure 4-2.



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Figure 4-2 TDM network topology

Table 4-2 describes usage scenarios and advantages of the preceding four topologies.



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Table 4-2 Usage scenarios and advantages of the four topologies

Topology Usage Scenario Advantage

Star A wild range of areas,especially densely populatedareas

l Networking is simple.l Engineering is easy.l Maintenance is easy.l Network capacity expansion is easy.l Transmission reliability is high.

Chain Strip areas that are sparselypopulated such as areas alonghighways and railways

This topology helps reduce expenditureon transmission device, engineering,and leased transmission cables.

Tree Areas where networkarchitecture, site distribution,and subscriber distributionare complicated such as anarea where large-scalecoverage overlaps with hotspot areas or small-scalecoverage.

Compared with the star topology, thistopology requires fewer transmissioncables.

Ring A wild range of areas.Because of its self-healingcapability, this topology isrecommended when a route isavailable.

A ring topology can automatically splitinto two chains if transmission isdisrupted at a breakpoint and basestations before and after the breakpointcan still function properly. Thisimproves the system robustness. Asshown in Figure 4-3, transmission isdisrupted at B. Before disruption, BTSs0, 1, and 2 are connected in a clockwisedirection, forming a ring topology. Afterdisruption, transmission is normal atBTS 0 and BTSs 1 and 2 form a chaintopology with BTS 2 being the upper-level base station.

Figure 4-3 Re-established topology after transmission is disrupted on a ring topology



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IP Network TopologyThe Abis interface between the GBTS and BSC uses the IP over FE or IP over E1/T1 transmissionmode. IP network topology includes IP over FE and IP over E1/T1 networking.

IP over FE network topology includes layer-2 and layer-3 networking, as shown in Figure4-4.

Figure 4-4 IP over FE network topology

IP over E1/T1 network topology includes start, chain, and tree networking, as shown in Figure4-5.



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Figure 4-5 IP over E1/T1 network topology

HDLC Network TopologyE1/T1 transmission is adopted for communication between the BTS and the BSC while HDLCtransmission is adopted on the Abis interface. HDLC network topology includes such networktopologies as chain, star, and ring, as shown in Figure 4-6.



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Figure 4-6 HDLC network topology



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5 RF System

About This Chapter

The functions of the RF system are provided by RF modules including the radio frequency units(RFUs) that are used in macro base stations and remote radio units (RRUs) that are used indistributed base stations. The RF system performs modulation, demodulation, data processing,and combination and division of RF and baseband signals.

5.1 Logical Structure of the RRURRUs include RRU3004, RRU3008, RRU3908, RRU3928, RRU3929, RRU3942 andRRU3926.

5.2 Logical Structure of the RFUThe RFU includes the DRFU, GRFU, MRFU V1, MRFU V2, MRFUd and MRFUe.

5.3 CPRI-Based TopologiesMultiple CPRI-based topologies such as chain, star, and ring are supported for communicationbetween BBUs and radio frequency (RF) modules.

5.4 RRU3004 ConfigurationRRU3004 is a double-transceiver remote radio unit and supports two carriers. Differentconfigurations must be chosen in different topologies.

5.5 Configurations of RRU3008, RRU3908, RRU3928, RRU3929, RRU3942, RRU3926, andthe MRFUdRRU3008, RRU3908, RRU3928, RRU3929, RRU3942, and RRU3926 are multi-carrier remoteradio units. An RRU3908 V1 supports a maximum of six carriers. RRU3908 V2 and othermodules support a maximum of eight carriers each. MRFUd is a multi-carrier radio frequency(RF) module and supports a maximum of eight carriers. RF configuration modes need to beselected depending on networking configurations.

5.6 DRFU ConfigurationThe DRFU is a double-transceiver module and supports two carriers. Different configurationsmust be chosen in different topologies.

5.7 Configurations of the GRFU/MRFU/MRFUeThe GRFU, MRFU V1, MRFU V2, and MRFUe are multi-carrier radio frequency (RF) modules.A GRFU or MRFU V1 or MRFU V2 supports six carriers, and an MRFUe supports eight carriers.Different configurations must be chosen in different topologies.

3900 Series GSM Base StationTechnical Description 5 RF System


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5.8 Hybrid Configuration of RF ModulesThis chapter describes the cabinets supported by RFUs and RRUs and principles for hybridconfiguration.



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5.1 Logical Structure of the RRURRUs include RRU3004, RRU3008, RRU3908, RRU3928, RRU3929, RRU3942 andRRU3926.

RRU3004 consists of a high-speed interface unit, signal processing unit, power amplifier (PA),low noise amplifier (LNA), and dual duplexer. Figure 5-1 shows the logic structure of RRU3004.

Figure 5-1 Logical structure of RRU3004

RXM_OUT: It is a main receive output port and is usedfor RRU interconnecting.

RXD_IN: It is a receive diversity input port and is usedfor RRU interconnecting.

RRU3008 consists of a main control and high-speed interface unit, signal processing unit, PA,LNA, RX, and dual duplexer. Figure 5-2 shows the logic structure of RRU3008.



26

Figure 5-2 Logical structure of RRU3008

RXM_OUT: It is a main receive output port and is usedfor RRU interconnecting.

RXD_IN: It is a receive diversity input port and is usedfor RRU interconnecting.

RRU3908, RRU3928, or RRU3929 consists of a high-speed interface unit, signal processingunit, PA, LNA, and duplexer. Figure 5-3 shows the logic structures of RRU3908, RRU3928,and RRU3929.

Figure 5-3 Logical structures of RRU3908, RRU3928, and RRU3929

RRU3942 consists of a high-speed interface unit, signal processing unit, PA, LNA, and duplexer.Figure 5-4 shows the logic structures of RRU3942.



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Figure 5-4 Logical structures of RRU3942

RRU3926 consists of a high-speed interface unit, signal processing unit, PA, LNA, and duplexer.Figure 5-5 shows the logic structures of RRU3926.

Figure 5-5 Logical structures of RRU3926

High-Speed Interface UnitThe high-speed interface unit mainly provides the following functions:



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l Receives data from an upper-level device, such as the BBU.l Sends data to an upper-level device, such as the BBU.l Transfers data transmitted from cascaded RRUs by using CPRI ports.

Main Control and High-Speed Interface UnitThe main control and high-speed interface unit mainly provides the following functions:

l Receives data from an upper-level device, such as the BBU.l Sends data to an upper-level device, such as the BBU.l Transfers data transmitted from cascaded RRUs by using CPRI ports.l Initializes RRU configurations and loads RRU software.l Collects alarms and reports board status.l Executes configuration commands sent from the BBU and manages configurations of an

RRU's other units.l Operates and maintains RRUs.

Signal Processing UnitThe signal processing unit consists of an uplink receive channel, a downlink transmit channel,and a control module. Moreover, it mainly processes radio frequency (RF) and GSM basebandsignals.

An uplink receive channel mainly provides the following functions:l Converts received signals into intermediate frequency analog signals by performing down-

conversion.l Converts intermediate frequency analog signals into digital signals by using an Analog

Digit Converter (ADC).l Processes intermediate frequency digital signals.l Matches filtering.l Provides the Digital Automatic Gain Control (DAGC) function.l Packs data.

A downlink transmit channel mainly provides the following functions:l Separates packed signals that are transmitted from the BBU including clock signals, control

signals, and data signals. Then, transmits them to specified units.l Combines and filters multiple routes of downlink signals.l Converts digital signals into analog signals by using a Digit Analog Converter (DAC).

Then, performs the Inphase and Quadrature (IQ) modulation.l Converts RF signals into signals that can be transmitted in transmit frequency bands by

performing up-conversion.

A control module mainly provides the following functions:

l Initializes RRU configurations and loads RRU software.l Collects alarms and reports board status.l Executes configuration commands sent from the BBU and manages configurations of an

RRU's other units.



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l Operates and maintains RRUs.

PAA PA's major function is to amplify power of multi-carrier and low-power radio frequency (RF)signals that are sent from the signal processing unit.

LNAThe LNA performs low noise amplification on signals received by antennas.

RXThe RX's major function is to convert signals sent from the LNA into intermediate frequencyanalog signals by performing down-conversion. Then, it amplifies the intermediate frequencyanalog signals. Finally, it sends the signals to the ADC.

DuplexerThe duplexer and the dual duplexer mainly provide the following functions:

l Filters transmitted or received signals.l Multiplexes transmitted and received signals on RF channels. By doing this, signals are

transmitted or received using the same antenna channel.

5.2 Logical Structure of the RFUThe RFU includes the DRFU, GRFU, MRFU V1, MRFU V2, MRFUd and MRFUe.

The RFU consists of a high-speed interface unit, signaling processing unit, power amplifier (PA),low noise amplifier (LNA), and duplexer. Figure 5-6 shows the logical structure of the DRFU.Figure 5-7 shows the logical structure of the MRFUd. Figure 5-8 shows the logical structuresof the GRFU, MRFU V1, MRFU V2 and MRFUe.

Figure 5-6 Logical structure of the DRFU



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Figure 5-7 Logical structure of the MRFUd

Figure 5-8 Logical structures of the GRFU, MRFU and MRFUe

High-Speed Interface UnitThe high-speed interface unit mainly provides the following functions:l Adapts signals sent from the BBU for the signaling processing unit.l Adapts signals sent from the signaling processing unit for the BBU.



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Signal Processing UnitThe signaling processing unit consists of two uplink receive channels and one downlink transmitchannel.

An uplink receive channel mainly provides the following functions:l Converts received high frequency analog signals into intermediate frequency analog signals

by performing down-conversion.l Amplifies intermediate frequency analog signals and performs the Inphase and Quadrature

(IQ) modulation.l Converts analog signals into digital signals by using an Analog Digit Converter (ADC).l Samples digital signals.l Matches filtering.l Provides the Digital Automatic Gain Control (DAGC) function.l Seals frames.

A downlink transmit channel mainly provides the following functions:l Processes signals that are transmitted from the BBU including clock signals, control signals,

and data signals. Then, transmit them to specified units.l Shapes and filters the downlink signals.l Converts digital signals into analog signals by using a Digit Analog Converter (DAC).

Then, performs the Inphase and Quadrature (IQ) modulation.l Converts radio frequency (RF) signals into signals that can be transmitted in transmit

frequency bands by performing up-conversion.

PAThe PA amplifies low-power RF signals that are sent from the signaling processing unit.

LNAThe LNA's major function is to perform low noise amplification on signals received by antennas.

DuplexerThe duplexer mainly provides the following functions:

l Multiplexes transmitted and received signals on RF channels.l Enables signals to be transmitted or received using the same antenna channel.l Filters transmitted or received signals.

5.3 CPRI-Based TopologiesMultiple CPRI-based topologies such as chain, star, and ring are supported for communicationbetween BBUs and radio frequency (RF) modules.

TopologiesFigure 5-9 shows CPRI-based topologies supported for communication between BBUs and RFmodules. The DRFU, GRFU support the chain and star topologies. The RRU3004, RRU3008,



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and RRU3926 support the chain, star, and ring topologies. The MRFU V1, MRFU V2, MRFUd,MRFUe, RRU3908, RRU3928, RRU3929, and RRU3942 support the star topology.

Figure 5-9 CPRI-based topologies

NOTERXU in the preceding figure indicates an RFU or RRU.

Table 5-1 describes characteristics of the three topologies in the preceding figure.



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Table 5-1 Characteristics of the three topologies

Topology

Advantage Disadvantage Remarks

Chain The transmissionequipment cost is low.

l The number ofcascading levels in achain and the cascadingdistance are restricted.

l Faults in an upper-levelRF module may affectlower-level RFmodules.

l This topology isapplicable toscenarios wherecapacity is large.

l RFUs and RRUscannot be cascaded.

Star l Installation andmaintenance are easy.

l Transmissionreliability is high.When an RF module oroptical cable is faulty,only one sector isaffected.

Compared with othertopologies, this topologyrequires large numbers ofoptical cables.

This topology isapplicable to scenarioswhere capacity is small.

Ring Transmission reliability isguaranteed.

l The number ofcascading levels in achain and the cascadingdistance are restricted.

l Faults in an upper-levelRRU may affect lower-level RRUs.

l Only RRUs can beused in the ringtopology.

l The ring topology isimplemented byadding a redundantchain to a chaintopology.

Based on the distance between a BBU and an RRU, CPRI networking is classified into short-distance remote networking and long-distance remote networking.

l For the short-distance remote networking, the longest distance between an RRU and a BBUon a CPRI chain does not exceed 100 m.

l For the long-distance remote networking, the longest distance between an RRU and a BBUon a CPRI chain ranges from 100 m to 40,000 m.

Different CPRI optical cables are used in the two types of networking. For details, see chapterCPRI Optical Cable in the BBU3900 Hardware Description.

CPRI SpecificationsTable 5-2 lists the specifications of CPRI ports on the GSM Transmission, Timing, andManagement Unit for BBU (GTMU).



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Table 5-2 Specifications of CPRI ports on the GTMU board

Board Numberof CPRIPorts

Data Rate Topology Number ofSupported TRXs

GTMU 6 1.25 Gbit/s Star, chain, or ring 36

GTMUb 6 1.25/2.5Gbit/s

Star, chain, or ring 36

Table 5-3 lists the specifications of CPRI ports on different RF modules.

Table 5-3 Specifications of CPRI ports on different RF modules

RFModules

Number ofCPRIPorts

Data Rate Topology Number ofSupportedCarriers

CascadingLevels

MaximumDistancefromtheBBU

DRFU 2 1.25 Gbit/s Star or chain 2 3 levels N/A

GRFU 2 l GRFUV1: 1.25Gbit/s

l GRFUV2:1.25/2.5Gbit/s

Star or chain 6 2 levels N/A

RRU3004

2 1.25 Gbit/s Star, chain, orring

2 6 levels 40

RRU3008

2 l RRU3008 V1(850, or1900MHz):1.25 Gbit/s

l RRU3008 V1(1800MHz) orRRU3008 V2:1.25/2.5Gbit/s

Star, chain, orring

8 6 levels 40



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RFModules

Number ofCPRIPorts

Data Rate Topology Number ofSupportedCarriers

CascadingLevels

MaximumDistancefromtheBBU

MRFUV1

2 1.25 Gbit/s Star 6 N/A N/A

MRFUV2

2 1.25/2.5Gbit/s

Star 6 N/A N/A

MRFUd 2 1.25/2.5Gbit/s

Star 8 N/A N/A

MRFUe 2 1.25/2.5Gbit/s

Star 8 N/A N/A

RRU3908 V1

2 l RRU3908 V1(850, 900,or 1900MHz):1.25 Gbit/s

l RRU3908 V1(1800MHz):1.25/2.5Gbit/s

Star 6 N/A 40

RRU3908 V2

2 1.25/2.5Gbit/s

Star 8 N/A 40

RRU3928

2 1.25/2.5Gbit/s

Star 8 N/A 40

RRU3929

2 1.25/2.5Gbit/s

Star 8 N/A 40

RRU3942

2 1.25/2.5Gbit/s

Star 8 N/A 40

RRU3926

2 1.25/2.5Gbit/s

Star, chain, orring

8 21 40

5.4 RRU3004 ConfigurationRRU3004 is a double-transceiver remote radio unit and supports two carriers. Differentconfigurations must be chosen in different topologies.



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Port

Table 5-4 describes major ports on RRU3004.

Table 5-4 Major ports on RRU3004

Type Silkscreen Description

Port for transceiving RFsignals

ANT_TX/RXA andANT_TX/RXB

The two ports, each of which is usedto transmit and receive RF signals,connect to the antenna systemthrough antenna channel 1 andantenna channel 2 respectively.

CPRI port TX RX CPRI_W The port is a westbound optical/electrical port and it is used to connectto the BBU or an upper-level RRU.

TX RX CPRI_E The port is an eastbound optical/electrical port and it is used to connectto a lower-level RRU.

Interconnection port forreceiving RF signals

RX_IN/OUT The port is used to transmit andreceive the diversity signals receivedthrough an antenna channel.

Basic Configurations

Table 5-5 lists the basic configurations of an RRU3004 serving only one sector.

The format of the description of the basic configuration is RF[F][TX][RX]_[C][TYPE]. Where,

l F indicates the number of antenna channels for an RF module.

l TX indicates the number of transmit channels for an RF module.

l RX indicates the number of receive channels for an RF module.

l C indicates the number of CPRI links connecting RF modules with the GTMU board.

l TYPE indicates the CPRI network topologies applied to connect RF modules with the BBU.If the value of TYPE is A, the star topology is applied. If the value of TYPE is B, the chaintopology is applied.

Table 5-5 Basic configurations

BasicConfiguration

Number ofModules

SendingReceiving Mode

HardwareConfiguration

RF111_1A 1 Single feeder[1TX 1RX]

Figure 5-10

RF211_1A 1 Double feeder[1TX 1RX]

Figure 5-11



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BasicConfiguration

Number ofModules




Figure 5-12


Figure 5-13

RF112_2B 2 Single feeder[1TX 2RX]

Figure 5-14

RF111_1AAn RRU3004 connects to the antenna system through ANT_TX/RXA. Antenna channel 1transmits and receives signals. The star topology is applied to connect the BBU with theRRU3004.

Figure 5-10 RF111_1A

RF211_1AAn RRU3004 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB.Antenna channel 1 transmits signals while antenna channel 2 receives signals. The star topologyis applied to connect the BBU with the RRU3004.



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RF212_1A

An RRU3004 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB.Antenna channel 1 transmits and receives signals while antenna channel 2 receives signals only.The star topology is applied to connect the BBU with the RRU3004.




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RF222_1AAn RRU3004 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB. Bothantenna channel 1 and antenna channel 2 transmit and receive signals. The star topology isapplied to connect the BBU with the RRU3004.


RF112_2BTwo RRU3004 connect to the antenna system through ANT_TX/RXA. Antenna channel 1transmits and receives signals. RX_IN/OUT on the two RRU3004 interconnect to transferdiversity signals. The chain topology is applied to connect the BBU with one RRU3004.



40

Figure 5-14 RF112_2B

Typical Configurations

Table 5-6 describes the typical configurations of RRU3004 in different scenarios.

Table 5-6 Typical configurations

Scenario

Number ofModules

Send Mode Typical Configuration

S1 1 Transmit diversity RF222_1A

Independent transmit l RF111_1Al RF212_1Al RF222_1A

S2 1 Independent transmit orcombination

l RF111_1Al RF212_1Al RF222_1A

2 PBT RF112_2B


RF112_2B


l RF112_2Bl RF111_1A + RF111_1A



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5.5 Configurations of RRU3008, RRU3908, RRU3928,RRU3929, RRU3942, RRU3926, and the MRFUd

RRU3008, RRU3908, RRU3928, RRU3929, RRU3942, and RRU3926 are multi-carrier remoteradio units. An RRU3908 V1 supports a maximum of six carriers. RRU3908 V2 and othermodules support a maximum of eight carriers each. MRFUd is a multi-carrier radio frequency(RF) module and supports a maximum of eight carriers. RF configuration modes need to beselected depending on networking configurations.

Port

Table 5-7 describes major ports on RRU3008 V1.

Table 5-7 Major ports on RRU3008 V1


RF port ANT-A and ANT-B The two ports, each of which is usedto transmit and receive RF signals,connect to the antenna systemthrough antenna channel 1 andantenna channel 2 respectively.

CPRI port TX RX CPRI_W The port is a westbound optical/electrical port and it is used to connectto the BBU or an upper-level RRU.

TX RX CPRI_E The port is an eastbound optical/electrical port and it is used to connectto a lower-level RRU.



Table 5-8 describes major ports on RRU3008 V2 and RRU3908 V2.

Table 5-8 Major ports on RRU3008 V2 and RRU3908 V2


RF port ANT_TX/RXA andANT_TX/RXB


CPRI port CPRI0 The port is used to connect to theBBU or an upper-level RRU.



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CPRI1 The port is used to connect to theBBU or a lower-level RRU.



Table 5-9 describes major ports on RRU3908 V1.

Table 5-9 Major ports on RRU3908 V1


RF port ANT-A and ANT-B The two ports, each of which is usedto transmit and receive RF signals,connect to the antenna systemthrough antenna channel 1 andantenna channel 2 respectively.

CPRI port TX RX CPRI_W The port is a westbound optical/electrical port and it is used to connectto the BBU.

TX RX CPRI_E The port is an eastbound optical/electrical port and it is used to connectto the BBU.



Table 5-10 describes major ports on RRU3928 or RRU3929.

Table 5-10 Major ports on RRU3928 or RRU3929




CPRI port CPRI0 The port is optical/electrical port 0and it is used to connect to the BBU.

CPRI1 The port is optical/electrical port 1and it is used to connect to the BBU.



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Table 5-11 describes major ports on the MRFUd.

Table 5-11 Major ports on the MRFUd




CPRI port CPRI0 The port is used to connect to theBBU.

CPRI1 The port is used to connect to theBBU.


RX_INB The port is used to receive diversitysignals from an antenna channel.

RX_OUTA The port is used to transmit diversitysignals to an antenna channel.




RF port ANT_TX/RXA,ANT_RXC, ANT_RXD,ANT_TX/RXB








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RF port ANT_TX/RXA,ANT_RXB






Basic Configurations

The basic configurations of RRU3008, RRU3908, RRU3928, RRU3929, RRU3942, RRU3926,and the MRFUd are the same. The following description takes RRU3008 V2 as an example.Table 5-14 lists the basic configurations of a single sector.

The basic configurations are described in the "RF[F][TX][RX]_[C][TYPE]" format. Where,


l TX indicates the number of transmit channels for an RF module.

l RX indicates the number of receive channels for an RF module.

l C indicates the number of CPRI links connecting RF modules with the GTMU board.

l TYPE indicates the CPRI network topologies applied to connect RF modules with the BBU.If the value of TYPE is A, the star topology is applied. If the value of TYPE is B, the chaintopology is applied.


BasicConfiguration

Number ofModules




Figure 5-15

RF112_2B 2 Single feeder[1TX 2RX]

Figure 5-16



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BasicConfiguration

Number ofModules




Figure 5-17


Figure 5-18


Figure 5-19

RF111_1AAn RRU3008 connects to the antenna system through ANT_TX/RXA. Antenna channel 1transmits and receives signals. The star topology is applied to connect the BBU with theRRU3008.


RF112_2BTwo RRU3008 connect to the antenna system through ANT_TX/RXA. Each antenna channel1 transmits and receives signals. RX_IN/OUT on the two RRU3008 interconnect to transferdiversity signals. The chain topology is applied to connect the BBU with one RRU3008.



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Figure 5-16 RF112_2B

RF211_1A

An RRU3008 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB.Antenna channel 1 transmits signals while antenna channel 2 receives signals. The star topologyis applied to connect the BBU with the RRU3008.




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RF212_1AAn RRU3008 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB.Antenna channel 1 transmits and receives signals while antenna channel 2 receives signals only.The star topology is applied to connect the BBU with the RRU3008.


RF222_1AAn RRU3008 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB. Eachantenna channel transmits and receives signals. The star topology is applied to connect the BBUwith the RRU3008.



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Table 5-15 describes the typical configurations of RRU3008 in different scenarios.


Scenario Number ofModules


S3-S8 1 Independent transmit RF212_1A

Transmit diversity (S4) RF222_1A

S8-S12 2 Combined transmit RF112_2B

Independent transmit RF222_1A + RF222_1A

5.6 DRFU ConfigurationThe DRFU is a double-transceiver module and supports two carriers. Different configurationsmust be chosen in different topologies.

Port

Table 5-16 describes major ports on the DRFU.



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Table 5-16 Major ports on the DRFU


Port for transceiving RFsignals

ANT1 and ANT2 The two ports, each of which is usedto transmit and receive RF signals,connect to the antenna systemthrough antenna channel 1 andantenna channel 2 respectively.

CPRI port CPRI0 The port is used to connect to a lower-level DRFU.

CPRI1 The port is used to connect to theBBU or an upper-level DRFU.


RX1/IN and RX1/OUT RX1/IN is the diversity receive portfor antenna channel 1 while RX1/OUT is the diversity transmit port forantenna channel 1.

RX2/IN and RX2/OUT RX2/IN is the diversity receive portfor antenna channel 2 while RX2/OUT is the diversity transmit port forantenna channel 2.

Basic ConfigurationsTable 5-17 lists the basic configurations of a DRFU serving only one sector.

The format of the description of the basic configuration is RF[F][TX][RX]_[C][TYPE]. Where,

l F indicates the number of antenna channels for an RF module.l TX indicates the number of transmit channels for an RF module.l RX indicates the number of receive channels for an RF module.l C indicates the number of CPRI links connecting RF modules with the GTMU board.l TYPE indicates the CPRI network topologies applied to connect RF modules with the BBU.

If the value of TYPE is A, the star topology is applied. If the value of TYPE is B, the chaintopology is applied.


BasicConfiguration

Number ofModules




Figure 5-20


Figure 5-21


Figure 5-22



50

BasicConfiguration

Number ofModules




Figure 5-23


Figure 5-24


Figure 5-25

RF111_1A

A DRFU connects to the antenna system through ANT1. Antenna channel 1 transmits andreceives signals.


RF211_1A

A DRFU connects to the antenna system through ANT1 and ANT2. Antenna channel 1 transmitssignals while antenna channel 2 receives signals.



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RF212_1AA DRFU connects to the antenna system through ANT1 and ANT2. Antenna channel 1 transmitsand receives signals while antenna channel 2 receives signals only.



52


RF222_1AA DRFU connects to the antenna system through ANT1 and ANT2. Both antenna channel 1 andantenna channel 2 transmit and receive signals.



53


RF112_2ATwo DRFUs connect to the antenna system through ANT1. Antenna channel 1 transmits andreceives signals. RX1/IN on one DRFU interconnects with RX1/OUT on the other DRFU totransfer the diversity signals received through antenna channel 1.



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RF224_2ATwo DRFUs connect to the antenna system through their own ports ANT1 and ANT2. Bothantenna channel 1 and antenna channel 2 transmit and receive signals. RX1/IN on one DRFUinterconnects with RX1/OUT on the other DRFU to transfer the diversity signals receivedthrough antenna channel 1. RX2/IN on one DRFU interconnects with RX2/OUT on the otherDRFU to transfer the diversity signals received through antenna channel 2.



55


Typical ConfigurationsTable 5-18 describes the typical configurations of the DRFU in different scenarios.




S1 1 Transmit diversity RF222_1A

Independent transmit orcombination




2 PBT RF112_2A



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Transmit diversity l RF222_1A + RF222_1Al RF224_2A (the receive mode

is four-way receive diversity)


RF112_2A


l RF112_2Al RF111_1A + RF111_1Al RF224_2A (the receive mode

is four-way receive diversity)

Two carriers of a DRFU can be shared by two cells. That is, a DRFU can serve two cells.Therefore, three DRFUs are used to achieve the configuration S3/3. Figure 5-26 shows thehardware configuration in the scenario where the configuration S3/3 is applied and Table5-19 shows the corresponding data configuration.

Figure 5-26 Hardware configurations in the configuration S3/3



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Table 5-19 Data configurations in the configuration S3/3

DRFU Send Mode Sending Receiving Mode

DRFU0 Independent transmit orcombination

Single feeder [1TX 2RX]

DRFU1 Double feeder [2TX 4RX]

DRFU2 Single feeder [1TX 2RX]

5.7 Configurations of the GRFU/MRFU/MRFUeThe GRFU, MRFU V1, MRFU V2, and MRFUe are multi-carrier radio frequency (RF) modules.A GRFU or MRFU V1 or MRFU V2 supports six carriers, and an MRFUe supports eight carriers.Different configurations must be chosen in different topologies.

PortTable 5-20 describes major ports on the GRFU, MRFU V1, MRFU V2, and MRFUe.

Table 5-20 Major ports on the GRFU, MRFU V1, MRFU V2, and MRFUe


RF port ANT_TX/RXA The port, used to transmit and receiveRF signals, connects to the antennasystem through antenna channel 1.

ANT_RXB The port, used to receive RF signals,connects to the antenna systemthrough antenna channel 2.

CPRI port CPRI0 The port is used to connect to theBBU or an upper-level RFU.

CPRI1 The port is used to connect to theBBU or a lower-level RFU.


RX_INB and RX_OUTA RX_INB is the diversity receive portfor an antenna channel whileRX_OUTA is the diversity transmitport for the antenna channel.

Basic ConfigurationsThe basic configurations of the GRFU, MRFU V1, MRFU V2, and MRFUe are the same. Thefollowing description takes the GRFU as an example. Table 5-21 lists the basic configurationsof the GRFU serving a single sector.

The basic configurations are described in the "RF[F][TX][RX]_[C][TYPE]" format. Where,




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l TX indicates the number of transmit channels for an RF module.l RX indicates the number of receive channels for an RF module.l C indicates the number of CPRI links connecting RF modules with the GTMU board.l TYPE indicates the CPRI network topologies applied to connect RF modules with the BBU.

If the value of TYPE is A, the star topology is applied. If the value of TYPE is B, the chaintopology is applied.


BasicConfigurations

Number ofModules

Send andReceive Mode



Figure 5-27


Figure 5-28


Figure 5-29


Figure 5-30

RF111_1AA GRFU connects to the antenna system through ANT_TX/RXA. Antenna channel 1 transmitsand receives signals.



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RF112_2ATwo GRFUs connect to the antenna system through ANT_TX/RXA. Each antenna channel 1transmits and receives signals. RX_INB on one GRFU interconnects with RX_OUTA on theother GRFU to transfer the diversity signals received through an antenna channel.



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RF211_1AA GRFU connects to the antenna system through ANT_TX/RXA and ANT_RXB. Antennachannel 1 transmits signals while antenna channel 2 receives signals.



61


RF212_1AA GRFU connects to the antenna system through ANT_TX/RXA and ANT_RXB. Antennachannel 1 transmits and receives signals while antenna channel 2 receives signals only.



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Typical ConfigurationsTable 5-22 lists the typical configurations of the GRFU and MRFU in various scenarios. Table5-23 lists the typical configurations of the MRFUe in various scenarios.

Table 5-22 Typical configurations of the GRFU and MRFU



S3-S6 1 RF212_1A

S7-S12 2 RF112_2A

S13-S18 3 RF112_2A + RF212_1A

S19-S24 4 RF112_2A + RF112_2A



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Table 5-23 Typical configurations of the MRFUe



S3-S8 1 RF212_1A

S9-S16 2 RF112_2A

NOTEThe configurations of the GRFU, MRFU, or MRFUe serving multiple sectors are the combination of theconfigurations of several GRFUs, MRFUs, or MRFUes serving a single sector.

5.8 Hybrid Configuration of RF ModulesThis chapter describes the cabinets supported by RFUs and RRUs and principles for hybridconfiguration.

RFUCabinets Supported by RFUs

Restrictions for cabinets supported by RFUs are as follows:l MRFUd and MRFUe must use Ver.C or Ver.D series cabinets.l There is no restriction for other RFUs.

Hybrid Configuration Principle

In a capacity expansion scenario, use different types of RFUs for hybrid configuration to improvethe system capacity or to implement evolution of the network technology type.

Table 5-24 lists the RFU hybrid configuration principles.

Table 5-24 RFU Hybrid Configuration Principles

In different frequency bands Different types of RFUs can be configured together.

In the samefrequencyband

In differentsectors

Different types of RFUs can be configured together.



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In the samesector

RFUs that can be configured together are as follows:l All types of RFUs except DRFUs support hybrid

configuration.l When different types of RFUs are used together, you must

upgrade the software of the base station, base stationcontroller, and CME to the required version, as shown inTable 5-25.

l When an MRFUd is used together with a 1T2R RFU ofanother type:– The MRFUd does not work with the RFU to achieve

the inter-module radio frequency (RF) frequencyhopping function.

– The MRFUd does not work with the RFU to achievethe dual-PA power sharing function. PA stands forpower amplifier.

l When a GRFU is used together with an MRFU or MRFUe:– If the MRFU or MRFUe is working in GSM mode, it

can work with the GRFU to achieve the inter-moduleRF frequency hopping and dual-PA power sharingfunctions. In this case, the MRFUe supports amaximum of 6 carriers, and the difference between thenumber of carriers on the GRFU and the number ofcarriers on the MRFUe must not exceed 1.

– If the MRFU or MRFUe is working in GU or GL mode,it cannot work with the GRFU to achieve the inter-module RF frequency hopping or dual-PA powersharing function.

Take GRFU V2 hybrid configuration as an example, as shownin Figure 5-31.

Table 5-25 Patch versions

BSC Version CME Version GBTS Version

V900R013C00SPC582 andlater

V200R011C00CP2501 andlater

V100R013C00SPC047 andlater



65

Figure 5-31 RFU hybrid configuration

The BTS is originally configured with GSM S4 x 20 W with each sector configured with oneGRFU V2 1800 MHz module. To expand the capacity, one MRFU V2 module is added in eachsector. Therefore, the BTS now is configured with GSM S8 x 20 W, and the added MRFU V2is configured with S4 x 20 W.

RRU

Cabinets Supported by RRUs

Restrictions for cabinets supported by RRUs are as follows:l RRU3929 and RRU3942 must use Ver.C or Ver.D series cabinets.l There is no restriction for other RRUs.

Hybrid Configuration Principle

In a capacity expansion scenario, use different types of RRUs for hybrid configuration to improvethe system capacity or to implement evolution of the network technology type.

Table 5-26 lists the RRU hybrid configuration principles.

Table 5-26 RRU hybrid configuration principles

In different frequency bands Different types of RRUs can be configured together.



66

In the samefrequencyband

In differentsectors

Different types of RRUs can be configured together.

In the samesector

RRUs that can be configured together are as follows:l Different types of RRUs can be configured together except

the RRU3004.l RRU3008 V1 and RRU3008 V2 as well as RRU3908 V1

and RRU3908 V2 can be configured together in the samesubsite in an RRU multi-site cell.

Take RRU3908 or RRU3008 V2 hybrid configuration as anexample, as shown in Figure 5-32.

Figure 5-32 RRU hybrid configuration

The BTS is originally configured with GSM S4 x 20 W with each sector configured with oneRRU3908 or RRU3008 V2 900 MHz module. To expand the capacity, one RRU3926 900 MHzmodule is added in each sector. Therefore, the BTS now is configured with GSM S8 x 20 W,and the added RRU3926 is configured with S4 x 20 W.



67

6 Antenna System

The antenna system consists of antennas, feeders, jumpers, the Tower Mounted Amplifier(TMA), the Bias Tee (BT), and the GSM Antenna and TMA Control Module (GATM). Ittransmits and receives RF signals.

AntennaAntennas are used to radiate and receive radio waves. The working principle of antennas is asfollows: RF signals output from a radio transmitter are transmitted to antennas over feeders.After receiving the signals, the antennas transmit them to a destination in the form ofelectromagnetic waves. At the destination, antennas receive the electromagnetic waves, convertthem into RF signals, and transmit the signals to a radio transmitter over feeders. A remotecontrol (RC) can control the downtilt of the remote electric tilt (RET) antennas remotely.

Feeders and JumpersFeeders and jumpers are used to transmit RF signals between antennas and radio transmitters atminimum loss.

TMAThe TMA is a low noise amplifier that is installed close to antennas. One end of the TMA isconnected to an antenna port on an RF module while the other end is connected to antennas. Byamplifying weak signals received by antennas, the TMA helps improve receive sensitivity ofthe BTS, expand the uplink coverage, and lower transmit power of MSs.

BTThe BT couples the On-Off-Keying (OOK) signals or RF signals into the passive componentsof feeders.

GATMThe GATM must be configured if the DRFU, RET antennas, and TMA are configured. Functionsof the GATM are as follows:

l Controlling RET antennas.l Feeding power to the TMA.

3900 Series GSM Base StationTechnical Description 6 Antenna System


68

l Reporting RET control alarms.l Monitoring the current designated for the TMA.

3900 Series GSM Base StationTechnical Description 6 Antenna System


69

7 Operation and Maintenance

About This Chapter

Operation and Maintenance (OM) covers management, monitoring, and maintenance of thesoftware, hardware, and configuration of the BTSs. In addition, diversified OM modes areprovided in various scenarios.

7.1 OM Modes of the BTSThe OM modes of the BTS consist of the Site Maintenance Terminal mode, Local MaintenanceTerminal mode, and centralized network management mode.

7.2 OM Functions of the BTSThe OM functions of the BTS consist of equipment management, software management,configuration management, service management, performance management, securitymanagement, alarm management, and environment monitoring.

3900 Series GSM Base StationTechnical Description 7 Operation and Maintenance


70

7.1 OM Modes of the BTSThe OM modes of the BTS consist of the Site Maintenance Terminal mode, Local MaintenanceTerminal mode, and centralized network management mode.

Figure 7-1 shows the components of the BTS OM system.

Figure 7-1 Network structure of the OM system

You can maintain the BTS in the following modes:

l Site Maintenance Terminal mode: The Site Maintenance Terminal is locally connected tothe BTS through the Ethernet. You can use the Site Maintenance Terminal to operate andmaintain the site, cell, Radio Carrier (RC), Baseband Transceiver (BT), channel, and board.In this mode, only one BTS can be maintained at a time.

l LMT mode: The LMT is used to maintain the BTS through the OM links on the Abisinterface, which is an interface between the BSC and the BTS. The LMT communicateswith the BSC through a LAN. You can use the LMT to operate and maintain the site, cell,RC, channel, and board. This mode is used in configuring and modifying the data of theBSC and BTS.

l Centralized network management mode: The Huawei iManager M2000 is used to maintainthe BTS through the BSC. The M2000 can operate and maintain the site, cell, channel, andboard. In this mode, multiple BTSs can be maintained at a time.

7.2 OM Functions of the BTSThe OM functions of the BTS consist of equipment management, software management,configuration management, service management, performance management, securitymanagement, alarm management, and environment monitoring.



71

Equipment ManagementProvides the query function for the status of all the components (boards/modules) and all theexternal devices (power supply/environment monitoring/RET). You can also perform dataconfiguration and status management for some devices.

Software ManagementProvides various functions, such as downloading and activating the BTS software, upgradingpatches, and loading and downloading files. The associated tasks involve consistency check onthe software and hardware releases, release management, and software upgrade.

Configuration Managementl Checks whether the added, deleted, or changed BTS data is consistent with the actual

situation.l Supports automatic data backup.l Supports dynamic and static data configuration. In dynamic data configuration, the data

immediately takes effect after modification; in static data configuration, the modified datatakes effect after the BTS is reset.

Service Managementl Supports parameter setting and alarm query for the baseband boards and environment

monitoring devices.l Supports complete self-test on hardware installation. The BTS software can be upgraded

through the software package saved in the USB disk; thus, shortening the upgrade period.In addition, the local commissioning is not required.

NOTEThe security of the USB loading port is ensured by encryption.

Performance Managementl Monitors the performance of the internal and external telecommunications networks and

generates alarms when the performance deteriorates.l Monitors the operating status of the BTS, such as monitors the traffic volume on the ports

and measures the technical data of the BTS.l Monitors the usage of key components in the board, such as the CPU and DSP.

Security ManagementProvides security management functions, such as connection management, user authentication,encryption, and forward and backward resolution of the interface messages between the BTSsoftware and the OMC.

Alarm Managementl Supports query of real-time alarms and history alarmsl Collects internal and external alarms, such as the environment monitoring device inputs

and Boolean inputsl Processes alarm correlation to ensure precision and accuracy in locating alarms



72

l Provides functions of saving, interpreting, prompting, shielding, filtering, confirming,clearing, post processing, and reporting of alarms

l Provides functions of detecting and reporting alarms, and processing alarm correlation inthe system

Environment Monitoringl Provides a perfect environment monitoring system.l Provides monitoring solutions regarding, for example, door control, infrared, smoke, water

immersion, and temperature, according to users' requirements.



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8 External Reference Clock Sources

The BTS supports multiple external reference clock sources, including the IP reference clock,E1/T1 reference clock, synchronous Ethernet reference clock, BITS reference clock, and GPS/RGPS reference clock. If a BTS fails to obtain clock signals, it works in free-run mode for acertain period of time.

IP Reference Clock

When a BTS works in IP over FE mode, it obtains clock signals from an IP reference clock. Inthis case, an IP clock server must be configured. The server sends the User Datagram Protocol(UDP) packets carrying reference clock information to the BTS. After receiving the packets, theBTS interprets clock signals from the packets and then synchronizes its clock system.

E1/T1 Reference Clock

The BBU obtains clock signals from an E1/T1 port. Then, the BBU performs frequency division,phase locking, and phase adjustment on the clock module to export 2 MHz and 8 kHz clocksignals for bit synchronization and frame synchronization. An E1/T1 reference clock obtainsclock signals from the BSC or transport network. The BTS can obtain clock signals from theBSC using an E1/T1 port. If the BTS adopts IP transmission mode but an IP reference clock isunavailable, the BTS uses an E1/T1 port to obtain clock signals from the transport network.

Synchronous Ethernet Reference Clock

When the BTS works in IP over FE mode and the transport network supports the synchronousEthernet reference clock, the BTS obtains Ethernet clock signals from the transport network.

BITS Reference Clock

When the BBU is configured with the USCU board, the GTMU board obtains external BITSclock signals from the USCU board.

GPS/RGPS Reference Clock

When the BBU is configured with the USCU board, the GTMU board obtains external GPS/RGPS clock signals from the USCU board.

3900 Series GSM Base StationTechnical Description 8 External Reference Clock Sources


74

Free-Run ClockIn the absence of external clocks, the internal free-run clock ensures that the BTS keeps workingproperly for at least ninety days.

3900 Series GSM Base StationTechnical Description 8 External Reference Clock Sources


75

9 Surge Protection Specifications

This section provides surge protection specifications for the BBU, RF modules, and each typeof base stations.

NOTE

l Unless otherwise specified, the surge protection specifications depend on the surge waveform of 8/20 μs.

l All the surge current items, unless otherwise specified as Maximum discharge current, refer to Nominaldischarge current.

Surge Protection Specifications of the Ports on BTS3900 (Ver.B)Table 9-1 lists the surge protection specifications of the ports on BTS3900 (Ver.B).

Table 9-1 Surge protection specifications of the ports on BTS3900 (Ver.B)

Port Surge Protection Mode Specification

DC power supplyport

Surge Differentialmode

2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

AC power supplyport


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surge current Differentialmode

5 kA

Commonmode

5 kA

Surge Protection Specifications for the Ports on the BTS3900 (Ver.C)Table 9-2 describes the surge protection specifications for the ports on the BTS3900 (Ver.C).

3900 Series GSM Base StationTechnical Description 9 Surge Protection Specifications


76

Table 9-2 Surge protection specifications for the ports on the BTS3900 (Ver.C)


-48 V DC powersupply port

Differential mode 2 kV (surge waveform of 1.2/50μs)

Common mode 4 kV (surge waveform of 1.2/50μs)

220 V AC powersupply port

Differential mode l 5 kAl 2 kV (surge waveform of

1.2/50 μs)

Common mode l 5 kAl 4 kV (surge waveform of

1.2/50 μs)

Surge Protection Specifications for the Ports on the BTS3900 (Ver.D)

Table 9-3 describes the surge protection specifications for the ports on the BTS3900 (Ver.D).

Table 9-3 Surge protection specifications for the ports on the BTS3900 (Ver.D)


DC power supplyport

Differential mode 2 kV (1.2/50μs)

Common mode 4 kV (1.2/50μs)

AC power supplyport

Differential mode 5 kA

Common mode 5 kA

Surge Protection Specifications for the Ports on BTS3900L (Ver.B)

Table 9-4 describes the surge protection specifications for the ports on BTS3900L (Ver.B).

Table 9-4 Surge protection specifications for the ports on BTS3900L (Ver.B)


DC power supplyport


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)



77

Surge Protection Specifications for the Ports on the BTS3900L (Ver.C)Table 9-5 describes the surge protection specifications for the ports on the BTS3900L (Ver.C).

Table 9-5 Surge protection specifications for the ports on the BTS3900L (Ver.C)




Common mode 2 kA

Surge Protection Specifications for the Ports on the BTS3900L (Ver.D)Table 9-6 describes the surge protection specifications for the ports on the BTS3900L (Ver.D).

Table 9-6 Surge protection specifications for the ports on the BTS3900L (Ver.D)


DC power supplyport

Differential mode 2 kV (1.2/50μs)

Common mode 4 kV (1.2/50μs)

Surge Protection Specifications for the Ports on BTS3900A (Ver.B)Table 9-7 describes the surge protection specifications for the ports on BTS3900A (Ver.B).

Table 9-7 Surge protection specifications for the ports on BTS3900A (Ver.B)

Port UsageScenario

Surge Protection Mode Specification

-48 V DC outputremote port

Applicableto allscenarios

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA

-48 V DC inputport

Applicableto thescenariowheretransmissioncabinets,batterycabinets, orBTS3900A (DC) isused


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA



78

Port UsageScenario


Applicableto thescenariowhere onlyRFCcabinetsare used


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

AC power supplyport

Applicableto thescenariowhereBTS3900A isconfiguredremotelyor is placedoutdoors


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

40 kA

Commonmode

40 kA

Surge Protection Specifications for the Ports on the BTS3900A (Ver.C)Table 9-8 describes the surge protection specifications for the ports on the BTS3900A (Ver.C).

Table 9-8 Surge protection specifications for the ports on the BTS3900A (Ver.C)




1.2/50 μs)


1.2/50 μs)

220 V AC powersupply port


1.2/50 μs)


1.2/50 μs)



79

Surge Protection Specifications for the Ports on the BTS3900A (Ver.D)

Table 9-9 describes the surge protection specifications for the ports on the BTS3900A (Ver.D).

Table 9-9 Surge protection specifications for the ports on the BTS3900A (Ver.D)

Port Applicable to allscenarios

Surge ProtectionMode

Specification

-48 V DC outputremote port

Applicable to allscenarios


Common mode 20 kA

-48 V DC inputport

Applicable to thescenario wheretransmission cabinets,battery cabinets, orBTS3900A (DC) isused


Common mode 20 kA

Applicable to thescenario where onlyRFC cabinets are used


Common mode 5 kA

AC powersupply port

Applicable to thescenario whereBTS3900A isconfigured remotelyor is placed outdoors


Common mode 30 kA

Surge Protection Specifications for the Ports on BBU3900

Table 9-10 describes the surge protection specifications for the ports on BBU3900.

Table 9-10 Surge protection specifications for the ports on BBU3900

Port UsageScenario


-48 V DCport

Applicableto thescenariowhereBBU3900is installedindoors

Differential mode 2 kV (1.2/50 μs)

Common mode 4 kV (1.2/50 μs)

24 V DCport

Applicableto thescenariowhereBBU3900

Differential mode 2 kV (1.2/50 μs)



80

Port UsageScenario


is installedindoors


FE/GE port Applicableto thescenariowhereBBU3900is installedindoors

Differential mode 0.5 kV (1.2/50 μs)


Applicableto thescenariowhereBBU3900isconfiguredremotely oris placedoutdoors


1 kV (1.2/50 μs)

Commonmode

2 kV (1.2/50 μs)

Surgecurrent

Differentialmode

1 kA per cable

Commonmode

6 kA (8 cables)

GPS port Applicableto thescenariowhereBBU3900isconfiguredremotely oris placedoutdoors

Onboardsurge

Differentialmode

250 A

Surgeprotectorconfigured

Differentialmode

8 kA

Commonmode

40 kA

RGPS port Applicableto thescenariowhereBBU3900isconfiguredremotely oris placedoutdoors

Onboardsurge

Differentialmode

250 A

Commonmode

250 A

Surgeprotectionmoduleconfigured

Differentialmode

3 kA

Commonmode

5 kA

E1/T1 port Applicableto thescenario

Onboardsurge

Differentialmode

250 A



81

Port UsageScenario


whereBBU3900is installedindoors

Commonmode

250 A


Surgeprotectionboxconfigured

Differentialmode

3 kA

Commonmode

5 kA

Dry contact Applicableto thescenariowhereBBU3900is installedindoors

Onboardsurge

Differentialmode

250 A


Surgeprotectionboardconfigured

Differentialmode

3 kA

Commonmode

5 kA

RS485 alarmport

Applicableto thescenariowhereBBU3900is installedindoors

Onboardsurge

Differentialmode

250 A

Commonmode

250 A

Applicableto thescenariowhereBBU3900isconfiguredremotely or

Surgeprotectionboardconfigured

Differentialmode

3 kA



82

Port UsageScenario


is placedoutdoors

Commonmode

5 kA



83

10 Technical Specifications

About This Chapter

This section provides technical specifications for RF modules.

10.1 Technical Specifications for RFUsThis section provides technical specifications for RFUs, including supported modes, frequencybands, RF specifications, surge protection specifications, and antenna capabilities.

10.2 Technical Specifications for RRUsThis section provides technical specifications for RRUs, including supported modes, frequencybands, RF specifications, engineering specifications, and antenna capabilities.

3900 Series GSM Base StationTechnical Description 10 Technical Specifications


84

10.1 Technical Specifications for RFUsThis section provides technical specifications for RFUs, including supported modes, frequencybands, RF specifications, surge protection specifications, and antenna capabilities.

10.1.1 DRFU Technical SpecificationsThe Double Radio Frequency Unit (DRFU) is an RF module based on the dual densitytechnology. DRFUs are installed in indoor macro base stations (such as the BTS3900 and theBTS3900L) and the outdoor macro base station (such as TS3900A). DRFUs are usually used inscenarios requiring medium or small capacity. A DRFU supports a maximum of two carriers.

Modes and Frequency Bands Supported by a DRFUTable 10-1 lists the modes and frequency bands supported by a DRFU.

Table 10-1 Modes and frequency bands supported by a DRFU

Type Mode Frequency Band(MHz)

ReceiveFrequency Band(MHz)

TransmitFrequency Band(MHz)

DRFU GSM 900 EGSM 880 to 915 925 to 960

900 PGSM 890 to 915 935 to 960

1800 1710 to 1785 1805 to 1880

RF SpecificationsTable 10-2 lists RF specifications of a DRFU.



85

Table 10-2 RF specifications of a DRFU

Type TransmitandReceiveChannel

Capacity

Receiver Sensitivity (dBm) OutputPower

PowerConsumptionReceiver

Sensitivity withOneAntenna

ReceiverSensitivity withTwoAntennas

ReceiverSensitivity withFourAntennas

DRFU 2T2R 2carriers

-113 -115.8 -118.5 DRFU(900MHz)outputpowerDRFU(1800MHz)outputpower

Powerconsumption(DRFUoperatingin 900MHzconfigured)Powerconsumption(DRFUoperatingin 1800MHzconfigured)

Table 10-3 DRFU (900 MHz) output power

Carrier Number BCCH Carrier Output Power

1 45 W (GMSK)/30 W (8PSK)

2 45 W (GMSK)/30 W (8PSK)

4 20 W (GMSK)/14 W (8PSK)

1(PBT) 71 W (GMSK)/41 W (8PSK)

Table 10-4 DRFU (1800 MHz) output power

Carrier Number BCCH Carrier Output Power (1800 MHz)

1 40 W (GMSK)/26 W (8PSK)

2 40 W (GMSK)/26 W (8PSK)

4 18 W (GMSK)/12 W (8PSK)



86

Carrier Number BCCH Carrier Output Power (1800 MHz)

1 (PBT) 63 W (GMSK)/42 W (8PSK)

Table 10-5 Power consumption (DRFU operating in 900 MHz configured)

Cabinet Configuration Typical PowerConsumption (W)

Maximum PowerConsumption (W)

BTS3900 S2/2/2, TOC =45 W

730 1060

BTS3900A S2/2/2, TOC =45 W

820 1190

Table 10-6 Power consumption (DRFU operating in 1800 MHz configured)



BTS3900 S2/2/2, TOC =40 W

730 1050

BTS3900A S2/2/2, TOC =40 W

820 1190

Engineering SpecificationsTable 10-7 lists the equipment specifications of a DRFU.

Table 10-7 Equipment specifications of a DRFU

Type Dimension (H x W x D) Weight (kg)

DRFU 9 U x 14 HP x 308.5 mm (with thepanel)

≤12

Table 10-8 describes the surge protection specifications for DRFU ports.

NOTE





87

Table 10-8 Surge protection specifications for DRFU ports

Port UsageScenario


DC powersupply port



2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA

Antenna port Applicableto allscenarios

Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA

Ports forcascadingRF modules


Surge 250 A

Dry contactor RS485alarm port


Surgecurrent

Differentialmode

250 A

Commonmode

250 A

Antenna CapabilitiesTable 10-9 shows antenna capabilities for a DRFU.

Table 10-9 Antenna capabilities for a DRFU

Type TMA Capability RET AntennaCapabilities

DRFU Not supported Supports AISG1.1

NOTE

l An external BT is required if a DRFU needs to be configured with a TMA.

l For RFUs supporting RET antennas, the feed voltage is 12 V and feed current is 2.3 A.

10.1.2 GRFU Technical SpecificationsThe GSM Radio Frequency Unit (GRFU) is an RF module based on the multi-carrier technology.GRFUs are installed in indoor macro base stations (such as the BTS3900 and BTS3900L) and



88

the outdoor macro base station (such as TS3900A). GRFUs are usually used in scenariosrequiring large capacity. A GRFU supports a maximum of six carriers.

Modes and Frequency Bands Supported by a GRFUTable 10-10 lists the modes and frequency bands supported by a GRFU.

Table 10-10 Modes and frequency bands supported by a GRFU




GRFU V1 GSM 1900 1850 to 1890 1930 to 1970

1870 to 1910 1950 to 1990

GRFU V2 GSM 900 PGSM 890 to 915 935 to 960

900 EGSM 880 to 915 925 to 960

1800 1710 to 1770 1805 to 1865

1725 to 1785 1820 to 1880

GRFU V2a GSM 900 EGSM 885 to 910 930 to 955

1800 1710 to 1755 1805 to 1850

RF SpecificationsTable 10-11 shows RF specifications for a GRFU.

NOTE

A x B W in the Output Power column indicates that this RF module is configured with A transmit channelsand the maximum output power of each transmit channel is B W.



89

Table 10-11 RF Specifications for a GRFU


Capacity

Receiver Sensitivity(dBm)

OutputPower

PowerConsumption

ReceiverSensitivitywith OneAntenna

ReceiverSensitivitywith TwoAntennas

GRFUV1

1T2R 6carriers

-113 -115.8 The GRFUV1 supportsthemaximumpowerconfiguration 1 x 60 W.For typicalconfigurations of theGRFU V1,see theGRFU V1(1900 MHz)outputpower table.

Powerconsumption (GRFUV1operating in1900 MHzconfigured)

GRFUV2

l 900EGSM:-113.3

l 900 MHzPGSM/1800MHz:-113.5

l 900EGSM:-116.1

l 900 MHzPGSM/1800MHz:-116.3

The GRFUV2 supportsthemaximumpowerconfiguration 1 x 60 W.The typicalconfigurations are asfollows:l GRFU

V2 (900MHz)outputpower

l GRFUV2 (1800MHz)outputpower

Powerconsumption (GRFUV2operating in900 MHzconfigured)Powerconsumption (GRFUV2operating in1800 MHzconfigured)

GRFUV2a

-113.5 -116.3 - -



90

Table 10-12 GRFU V1 (1900 MHz) output power

CarrierNumber

BCCH Carrier Output Power(Power Sharing Disabled)

BCCH Carrier Output Power (PowerSharing Enabled)

1 60 W (GMSK)/40 W (8PSK) 60 W (GMSK)/40 W (8PSK)





6 10 W (GMSK)/6.6 W (8PSK) 16 W (GMSK)/10 W (8PSK)

NOTE

The maximum output power of a GRFU V1 module in the configuration of S1 is 60 W. To achieve themaximum output power, you need to buy a license.


CarrierNumber









NOTE

l The maximum output power of a GRFU V2 module in the configuration of S1 is 60 W. To achieve themaximum output power, you need to buy a license.

l After design optimization, GRFU V2 modules with the configuration of S1 to S3 have the same outputpower no matter they use the Gaussian minimum shift-frequency keying (GMSK) or 8 phase shiftkeying (8PSK) modulation scheme.

l With the GBFD-118104 Enhanced EDGE Coverage feature, GRFU V2 modules with theconfiguration of S4 to S6 can also have the same output power no matter they use the GMSK or 8PSKmodulation scheme.



91


CarrierNumber









NOTE

l The maximum output power of a GRFU V2 module in the configuration of S1 is 60 W. To achieve themaximum output power, you need to buy a license.

l With the GBFD-118104 Enhanced EDGE Coverage feature, GRFU V2 modules with theconfiguration of S4 to S6 can also have the same output power no matter they use the GMSK or 8PSKmodulation scheme.

Table 10-15 Power consumption (GRFU V1 operating in 1900 MHz configured)



BTS3900 S4/4/4, TOC =20 W

792 943

BTS3900A S4/4/4, TOC =20 W

870 1036




BTS3900 S4/4/4, TOC =20 W

726 875

BTS3900A S4/4/4, TOC =20 W

798 961

BTS3900L S4/4/4 + 1800MHz S8/8/8,TOC = 20 W

2072 2518



92




BTS3900 S4/4/4, TOC =20 W

716 865

BTS3900A S4/4/4, TOC =20 W

786 950

BTS3900L S8/8/8 + 900MHz S4/4/4,TOC = 20 W

2072 2518

NOTE

l The following functions are configured: discontinuous transmission (DTX), power control.

l The preceding tables use the power consumption of BTS3900 -48 V DC, BTS3900A 220V AC, andBTS3900L -48 V DC as examples.

l TOC in the preceding table refers to the cabinet-top power of BTSs with duplex ports.

Engineering SpecificationsTable 10-18 lists the equipment specifications of a GRFU.

Table 10-18 Equipment specifications of a GRFU


GRFU V1,GRFU V2, andGRFU V2a

9 U x 14 HP x 308.5 mm (with thepanel)

≤12

Table 10-19 describes the surge protection specifications for GRFU ports.

NOTE



Table 10-19 Surge protection specifications for GRFU ports

Port UsageScenario


DC powersupply port



2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)



93

Port UsageScenario


Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA



Surge 250 A



Surgecurrent

Differentialmode

250 A

Commonmode

250 A

Antenna Capabilities

Table 10-20 shows GRFU antenna capabilities.

Table 10-20 GRFU antenna capabilities


GRFU V1 Supported Supports AISG2.0 andAISG1.1

GRFU V2 Supported Supports AISG2.0 andAISG1.1

GRFU V2a Supported Supports AISG2.0 andAISG1.1

NOTE

For RFUs supporting RET antennas, the feed voltage is 12 V and feed current is 2.3 A.

10.1.3 Technical Specifications for MRFUMRFUs are classified into MRFU V1, MRFU V2 and MRFU V2a. Adopting the software-defined radio (SDR) technology, MRFU modules can work in different modes with differentconfigurations.



94

Supported Modes and Frequency BandsTable 10-21 shows the modes and frequency bands supported by an MRFU.

Table 10-21 Modes and frequency bands supported by an MRFU

Type FrequencyBand (MHz)

RX FrequencyBand (MHz)

TX FrequencyBand (MHz)

Mode

MRFU V1 900 890 to 915 935 to 960 GSM and UMTS

1800 1710 to 1755 1805 to 1850 GSM

1740 to 1785 1835 to 1880

1900 1850 to 1890 1930 to 1970 GSM and UMTS

1870 to 1910 1950 to 1990

MRFU V2 850 824 to 846.5 869 to 891.5 GSM, UMTS,and GSM +UMTS

900 890 to 915 935 to 960 GSM, UMTS,LTE, GSM +UMTS, and GSM+ LTE

880 to 915 925 to 960

1800 1710 to 1770 1805 to 1865 GSM, LTE, andGSM + LTE

1725 to 1785 1820 to 1880

MRFUV2a


1800 1710 to 1755 1805 to 1850 GSM, LTE, andGSM + LTE

RF SpecificationsTable 10-22 shows RF specifications for an MRFU.



95

NOTE

l The GSM receiver sensitivity is measured, as recommended in 3GPP TS 51.021, over the central band atthe antenna connector on condition that the channel rate reaches 13 kbit/s and the bit error rate (BER) doesnot exceed 2%. The central band is the 80% of the full band.

l The UMTS receiver sensitivity is measured, as recommended in 3GPP TS 25.104, over the full band at theantenna connector on condition that the channel rate reaches 12.2 kbit/s and the BER does not exceed 0.001.

l The LTE receiver sensitivity is measured, as recommended in 3GPP TS 36.104, under a 5 MHz channelbandwidth 5 MHz channel bandwidth based on the FRC A1-3 in Annex A.1 (QPSK, R = 1/3, 25 RBs)standard.

l MRFU modules operating in GSM mode and in the 900 or 1800 MHz frequency band comply with thestandard EN 301 502 V9.2.1.

l MRFU modules operating in GSM mode and in the 850 or 1900 MHz frequency band comply with thestandard 3GPP TS 45.005 V10.2.0 & 3GPP TS 51.021 V10.2.0.

l MRFU modules operating in UMTS, LTE, or Multi-Standard Radio (MSR) mode and in 900 or 1800 MHzfrequency band comply with the standard ETSI EN 301 908 V5.2.1 and 3GPP TS 37.104.

l MRFU modules operating in UMTS, LTE, or Multi-Standard Radio (MSR) mode and in 850 or 1900 MHzfrequency band comply with the standard 3GPP TS 37.104 V10.4.0 & TS 37.141 V10.4.0.

l A x B W in the Output Power column indicates that this RF module is configured with A transmit channelsand the maximum output power of each transmit channel is B W.

l CD Non-MSR indicates that C data is carried on one transmit channel of an RF module while D data iscarried on the other transmit channel of the RF module. CD MSR indicates that C and D data is carried onthe same transmit channel of an RF module.



96

Table 10-22 RF specifications for an MRFU

Type

TransmitandReceiveChannels

Capacity


PowerConsumption1-Way

ReceiverSensitivity(dBm)

2-WayReceiverSensitivity(dBm)


MRFUV1

1T2R

GSM: 6TRXsUMTS: 4carriers

GSM: -113UMTS:-125.5

GSM:-115.8UMTS:-128.3

GSM:-118.5(theoreticalvalue)UMTS: -131

TheMRFUV1supportsthemaximum powerconfiguration 1 x60 W.Fortypicalconfigurations oftheMRFUV1, seetheOutput Powerof anMRFUV1 (900MHz/1800MHz/1900MHz,single-mode)table.

Powerconsumption(configured withMRFUV1, 900MHz)

MRFUV2

1T2R

GSM: 6TRXs

GSM: GSM: GSM:l 850

MHz:

TheMRFUV2

l Powercons



97

Type


Capacity






MRFU

UMTS: 4carriersLTE:l 900

MHz:1carrier, thebandwidthis 1.4,3, 5,10,15, or20MHz.

l 1800MHz:1carrier, thebandwidthis 5,10,15, or

l 850MHz:-113

l 900 MHzPGSM:-113.5

l 900 MHzEGSM:-113.3

l 1800MHz:-113.8

UMTS:l 850

MHz:-125



LTE:l 900 MHz

PGSM:-106.3


l 850MHz:-115.8



l 1800MHz:-116.6

UMTS:l 850

MHz:-127.8



LTE:l 900 MHz

PGSM:-109.1


-118.5(theoreticalvalue)

l 900 MHzPGSM:-119(theoreticalvalue)

l 900 MHzEGSM:-118.8(theoreticalvalue)

l 1800MHz:-119.3(theoreticalvalue)

UMTS:l 850

MHz:-130.5

l 900 MHzPGSM:-131


LTE:

supportsthemaximum powerconfiguration 1 x60 W.Thetypicalconfigurations areasfollows:

l OutputPower ofanMRFU V2(850MHz/900MHz/1800MHz,single-mode)

l OutputPower of

umption(configuredwithMRFU V2,900MHz)

l Powerconsumption(configuredwithMRFU V2,1800



98

Type


Capacity






V2a

20MHz.

l 1800MHz:-106.6

l 1800MHz:-109.4



l 1800MHz:-112.1

anMRFU V2(850MHz/900MHz,GUMSR)

l OutputPower ofanMRFU V2(900MHz/1800MHz,GLMSR)

MHz)



99

NOTE

l * indicates that the UMTS mode is supported in terms of hardware.

l Power sharing assumes a random distribution of UEs in the cell.

l The output power is 1 dB lesser than the standard power when the MRFU is located at a height of 3500 mto 4500m; and is 2 dB lesser than the standard power when the MRFU is located at a height of 4500 m to6000m.

l For the MRFU working in GSM mode, the maximum output power of each carrier on the MRFU is 60 Wwhen the S1 configuration is applied. Note that, if the output power of 60 W is required, the related licensemust be obtained.

l For the MRFU V2 working in GSM mode and operating in the 900 MHz frequency band: after designoptimization, the 8PSK and GMSK modulation schemes enable the same output power for each carrier onthe MRFU V2 when the S1, S2, or S3 configuration is used. When the S4, S5, or S6 configuration is used,the license controlling the GBFD-118104 Enhanced EDGE Coverage feature must be obtained. Otherwise,the 8PSK and GMSK modulation schemes cannot enable the same output power for each carrier on theMRFU V2.

l For the MRFU V2 working in GSM mode and operating in the 1800 MHz frequency band, the licensecontrolling the GBFD-118104 Enhanced EDGE Coverage feature must be obtained when the S4, S5, orS6 configuration is used. Otherwise, the 8PSK and GMSK modulation schemes cannot enable the sameoutput power for each carrier on the MRFU V2.

l Factors such as the site-to-site distance, frequency-reuse factor, power control algorithm, and traffic modelaffect the gain achieved by dynamic power allocation. Therefore, in most cases, the network planning canbe based on the power specification achieved by dynamic power allocation.

l Before activating the dynamic power sharing feature, enable the DTX and power control functions. InGBSS8.1, the dynamic power sharing feature is mutually exclusive with the GBFD-113201 Concentric Cell,GBFD-114501 Co-BCCH Cell, GBFD-118001 BCCH Dense Frequency Multiplexing, and GBFD-117501Enhanced Measurement Report (EMR) features. In GBSS9.0 and later versions, the dynamic power sharingfeature can be used together with these features. However, the dynamic power sharing feature currentlycannot be used together with the GBFD-117002 IBCA (Interference Based Channel Allocation),GBFD-117001 Flex MAIO, GBFD-118701 RAN Sharing, and GBFD-114001 Extended Cell features inGBSS8.1, GBSS9.0, and later versions.

Table 10-23 Output Power of an MRFU V1 (900 MHz/1800 MHz/1900 MHz, single-mode)

Mode Number ofGSMCarriers

Number ofUMTSCarriers

Output Powerper GSMCarrier (W)

OutputSharingPower perGSM Carrier(W)

Output Powerper UMTSCarrier (W)

GSM

1 0 60 60 0

2 0 40 40 0

3 0 27 31 0

4 0 20 27 0

5 0 12 20 0

6 0 10 16 0

UMTS

0 1 0 0 60

0 2 0 0 40

0 3* 0 0 27*



100






0 4* 0 0 20*

NOTETwo MRFU V2 modules are required to enable MIMO on the UMTS side.

Table 10-24 Output Power of an MRFU V2 (850 MHz/900 MHz/1800 MHz, single-mode)


NumberofUMTSCarriers

Numberof LTECarriers

OutputPowerper GSMCarrier(W)

OutputSharingPowerper GSMCarrier(W)

OutputPower perUMTSCarrier(W)

OutputPower perLTECarrier(W)

GSM

1 0 0 60 60 0 0

2 0 0 40 40 0 0

3 0 0 27 31 0 0

4 0 0 20 27 0 0

5 0 0 16 20 0 0

6 0 0 12 20 0 0

UMTS

0 1 0 0 0 60 0

01(MIMO)

0 0 0 2 x 60 0

0 2 0 0 0 40 0

02(MIMO)

0 0 0 2 x 40 0

0 3* 0 0 0 27* 0

0

3(MIMO)*

0 0 0 2 x 27* 0

0 4* 0 0 0 20* 0



101








0

4(MIMO)*

0 0 0 2 x 20* 0

LTE 0 0 1 (1T2R) 0 0 0 60

Table 10-25 Output Power of an MRFU V2 (850 MHz/900 MHz, GU MSR)

Mode Number ofGSM Carriers




GSM + UMTS 1 1 40 40

2 1 20 40

2 1 31 20

3 1 20 20

4 1 12 20

5 1 10 20

1 2 40 20

2 2 20 20

3 2 16 10

3 2 10 20

4 2 10 10

NOTE

l When there are no more than three GSM carriers, LTE bandwidth can be 1.4, 3, 5, 10, or 15 MHz in the 900MHz frequency band or be 5, 10, or 15 MHz in the 1800 MHz frequency band. When there are more thanthree GSM carriers, LTE bandwidth can be 1.4, 3, 5, or 10 MHz in the 900 MHz frequency band or be 5 or10 MHz in the 1800 MHz frequency band.

l Two MRFU V2 modules are required to enable MIMO on the LTE side.



102

Table 10-26 Output Power of an MRFU V2 (900 MHz/1800 MHz, GL MSR)


Number ofLTE Carriers


Output Powerper LTECarrier (W)

GSM + LTE 1 1 40 30

1 1 30 40

2 1 27 20

2 1 20 30

3 1 20 20

4 1 12 20

5 1 10 20

NOTE

l The typical power consumption and the maximum power consumption are measured when the base stationworks at a temperature of 25°C.

l The typical power consumption for GSM is reached when the base station works with 30% load and powercontrol and DTX are enabled. The maximum power consumption for GSM is reached when the base stationworks with 100% load. The power consumption for GSM is calculated based on the sharing power.

l The typical power consumption for UMTS is reached when the base station works with 40% load. Themaximum power consumption for UMTS is reached when the base station works with 100% load.

l LTE typical power consumption is measured when the base station load reaches 50% and LTE maximumpower consumption is measured when the base station load reaches 100%.

l LTE power consumption is calculated based on the 2x2 MIMO configuration. Two MRFUs are configuredin each sector.

Table 10-27 Power consumption (MRFU V1 operating in the 900 MHz frequency bandconfigured)

Cabinet Mode Configuration

Output Powerof EachCarrier (W)

TypicalPowerConsumption (W)

MaximumPowerConsumption(W)

BTS3900(Ver.B)(-48 V)

GSM

S2/2/2 20 700 900

S4/4/4 27 950 1350

S6/6/6 16 840 1180

UMTS 3 x 1 20 540 670

3 x 2 20 800 1020

3 x 3 20 1040 1330

3 x 4 20 1150 1450



103





GSM +UMTS

GSMS2/2/2 +UMTS 3x 1

l GSM: 20l UMTS: 40

1150 1440


l GSM: 15l UMTS: 10

970 1260


l GSM: 10l UMTS: 10

930 1190

BTS3900A (Ver.B)(AC)

GSM

S2/2/2 20 800 1040

S4/4/4 27 1070 1540

S6/6/6 16 950 1340

UMTS 3 x 1 20 660 840

3 x 2 20 950 1220

3 x 3 20 1210 1560

3 x 4 20 1340 1700

GSM +UMTS


l GSM: 20l UMTS: 40

1340 1690


l GSM: 15l UMTS: 10

1140 1490


l GSM: 10l UMTS: 10

1100 1410

BTS3900L(Ver.B)(-48 V)

GSM

S2/2/2 20 745 960

S4/4/4 27 995 1410

S6/6/6 16 885 1240

UMTS 3 x 1 20 585 730

3 x 2 20 845 1080



104





3 x 3 20 1085 1390

3 x 4 20 1195 1510

GSM +UMTS


l GSM: 20l UMTS: 40

1195 1500


l GSM: 15l UMTS: 10

1015 1320


l GSM: 10l UMTS: 10

975 1250






BTS3900(Ver.B)(-48 V)

GSM

S2/2/2 20 620 730

S4/4/4 20 810 1130

S6/6/6 12 710 1025

UMTS3 x 1 20 595 650

3 x 2 20 630 800

LTE 3 x 1 2 x 60 1185 1270


GSM

S2/2/2 20 620 730

S4/4/4 20 810 1130

S6/6/6 12 710 1025

UMTS3 x 1 20 595 650

3 x 2 20 630 800

LTE 3 x 1 2 x 60 1185 1270



105






GSM

S2/2/2 20 645 755

S4/4/4 20 835 1155

S6/6/6 12 735 1050

UMTS3 x 1 20 620 675

3 x 2 20 655 825

LTE 3 x 1 2 x 60 1210 1295






BTS3900(Ver.B)(-48 V)

GSM

S2/2/2 20 640 750

S4/4/4 20 820 1140

S6/6/6 12 685 1100

LTE 3 x 1 2 x 60 1230 1355


GSM

S2/2/2 20 640 750

S4/4/4 20 820 1140

S6/6/6 12 685 1100

LTE 3 x 1 2 x 60 1230 1355


GSM

S2/2/2 20 645 755

S4/4/4 20 835 1155

S6/6/6 12 735 1050

LTE 3 x 1 2 x 60 1210 1295

Engineering SpecificationsTable 10-30 shows equipment specifications of an MRFU.



106

Table 10-30 Equipment specifications of an MRFU


MRFU V1, MRFU V2, andMRFU V2a

9 U x 14 HP x 308.5 mm(with the panel)

≤12

Table 10-31 shows the surge protection specifications for the ports on an MRFU.

NOTE



Table 10-31 Surge protection specifications for the ports on an MRFU

Port UsageScenario


DC port Applicableto allscenarios


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA

CPRI port Applicableto allscenarios

Surge 250 A



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

Antenna CapabilitiesTable 10-32 shows antenna capabilities for an MRFU.



107

Table 10-32 Antenna capabilities for an MRFU

Type TMA Capabilites RET Antenna Capabilities

MRFU V1 Supported Supports AISG2.0 and AISG1.1

MRFU V2 and MRFUV2a

Supported Supports AISG2.0 and AISG1.1

NOTEFor RFUs supporting RET antennas, the feed voltage is 12 V and feed current is 2.3 A.

10.1.4 Technical Specifications for MRFUdAdopting the software-defined radio (SDR) technology, MRFUd modules can work in differentmodes with different configurations.

Supported Modes and Frequency BandsTable 10-33 shows the modes and frequency bands supported by an MRFUd.

Table 10-33 Modes and frequency bands supported by an MRFUd




Mode

MRFUd 900 890 to 915 935 to 960 GSM, UMTS,LTE, GSM +UMTS, and GSM+ LTE

880 to 915 925 to 960

1800 1710 to 1785 1805 to 1880

RF SpecificationsTable 10-34 shows RF specifications for an MRFUd.



108

NOTE




l MRFUd modules operating in GSM mode and in the 900 or 1800 MHz frequency band comply with thestandard EN 301 502 V9.2.1.

l MRFUd modules operating in UMTS, LTE, or Multi-Standard Radio (MSR) mode and in 900 or 1800 MHzfrequency band comply with the standard ETSI EN 301 908 V5.2.1 and 3GPP TS 37.104.





109

Table 10-34 RF specifications for an MRFUd

Type


Capacity




2-WayReceiverSensitivity (dBm)


MRFUd

2T2R

GSM: 8TRXsUMTS:l Non-

MIMO: 6carriers

l MIMO: 4carriers

LTE: 2carriers,thebandwidth is 1.4, 3,5, 10, 15,or 20MHz.

GSM:l 900

MHz:-113.7

l 1800MHz:-114

UMTS:l 900

MHz:-125.8

l 1800MHz:-126.1

LTE:l 900

MHz:-106.3

l 1800MHz:-106.6

GSM:l 900

MHz:-116.5

l 1800MHz:-116.8

UMTS:l 900

MHz:-128.6

l 1800MHz:-128.9

LTE:l 900

MHz:-109.1

l 1800MHz:-109.4

GSM:l 900

MHz:-119.2(theoretical value)

l 1800MHz:-119.5(theoretical value)

UMTS:l 900

MHz:-131.3

l 1800MHz:-131.6

LTE:l 900

MHz:-111.8

l 1800MHz:-112.1

TheMRFUdsupportsthemaximum powerconfiguration 2 x80 W.Thetypicalconfigurations areasfollows:l Outp

utPower ofanMRFUd(900MHz/1800MHz,single-mode)

l Output

l Powerconsumption(configuredwithMRFUd,900MHz)

l Powerconsumption(configuredwithMRFUd,1800MHz)



110

Type


Capacity






Power ofanMRFUd(900MHz/1800MHz, GUNon-MSR)

l OutputPower ofanMRFUd(900MHz/1800MHz, GUMSR)

l OutputPower ofanMRFUd



111

Type


Capacity






(900MHz/1800MHz, GLMSR)

NOTE


l The output power is 1 dB lesser than the standard power when the MRFUd is located at a height of 3500 mto 4500m; and is 2 dB lesser than the standard power when the MRFUd is located at a height of 4500 m to6000m.

l For the MRFUd working in GSM mode: when the S1 or S2 configuration is applied, the maximum outputpower of each carrier on the MRFUd is 80 W. If the output power of 60 W or 80 W is required, the relatedlicense must be obtained. After design optimization, the 8PSK and GMSK modulation schemes enable thesame output power for each carrier on the MRFUd when any of the S1 through S6 configurations is used.When the S7 or S8 configuration is used, the license controlling the GBFD-118104 Enhanced EDGECoverage feature must be obtained. Otherwise, the 8PSK and GMSK modulation schemes cannot enablethe same output power for each carrier on the MRFUd.





112

Table 10-35 Output Power of an MRFUd (900 MHz/1800 MHz, single-mode)

Mode

Number ofGSMCarriers

Numberof UMTSCarriers


OutputPowerperGSMCarrier(W)

OutputSharingPowerperGSMCarrier(W)

OutputPowerperUMTSCarrier(W)

OutputPowerper LTECarrier(W)

GSM 1 0 0 80 80 0 0

2 0 0 80 80 0 0

3 0 0 40 40 0 0

4 0 0 40 40 0 0

5 0 0 27 30 0 0

6 0 0 27 30 0 0

7 0 0 20 27 0 0

8 0 0 20 27 0 0

UMTS

0 1 0 0 0 80 0

0 2 0 0 0 80 0

0 3 0 0 0 40 0

0 4 0 0 0 40 0

0 5 0 0 0 25 0

0 6 0 0 0 25 0

0 1 (MIMO) 0 0 0 2 x 40 0

0 2 (MIMO) 0 0 0 2 x 40 0

0 3 (MIMO) 0 0 0 2 x 25 0

0 4 (MIMO) 0 0 0 2 x 20 0

LTE 0 0 1 0 0 0 5/10/15/20 MHz:2 x 601.4/3MHz: 2x 40

0 0 2 0 0 0 2 x 40



113

Table 10-36 Output Power of an MRFUd (900 MHz/1800 MHz, GU Non-MSR)


Number ofUMTS Carriers



GSM +UMTS

1 1 80 80

2 1 40 80

3 1 27 80

4 1 20 80

5 1 16 80

6 1 12 80

1 2 80 40

2 2 40 40

3 2 27 40

4 2 20 40

5 2 16 40

6 2 12 40

1 3 80 25

2 3 40 25

3 3 27 25

4 3 20 25

5 3 16 25

1 4 80 20

2 4 40 20

3 4 27 20

4 4 20 20

Table 10-37 Output Power of an MRFUd (900 MHz/1800 MHz, GU MSR)





GSM + UMTS 2 1 40 40

3 1 40 40



114





4 1 27 40

5 1 27 20

5 1 25 30

5 1 20 40

6 1 20 40

7 1 20 20

7 1 16 30

1 2 40 40

2 2 40 40

3 2 30 20

3 2 25 30

3 2 20 40

4 2 30 20

4 2 25 30

4 2 20 40

5 2 20 20

6 2 20 20

1 1 (MIMO) 40 2 x 40

2 1 (MIMO) 40 2 x 40

3 1 (MIMO) 20 2 x 40

3 1 (MIMO) 25 2 x 30

4 1 (MIMO) 20 2 x 40

4 1 (MIMO) 25 2 x 30

4 1 (MIMO) 30 2 x 20

1 2 (MIMO) 20 2 x 30

1 2 (MIMO) 40 2 x 20

2 2 (MIMO) 20 2 x 30

2 2 (MIMO) 40 2 x 20

3 2 (MIMO) 15 2 x 20



115





4 2 (MIMO) 15 2 x 20

Table 10-38 Output Power of an MRFUd (900 MHz/1800 MHz, GL MSR)





GSM + LTE 1 1 (MIMO) 40 2 x 40

2 1 (MIMO) 40 2 x 40

3 1 (MIMO) 30 2 x 20

3 1 (MIMO) 25 2 x 30

3 1 (MIMO) 20 2 x 40

4 1 (MIMO) 20 2 x 40

4 1 (MIMO) 25 2 x 30

4 1 (MIMO) 30 2 x 20

5 1 (MIMO) 16 2 x 30

5 1 (MIMO) 20 2 x 20

6 1 (MIMO) 15 2 x 20

NOTE





l LTE power consumption is calculated based on the 2x2 MIMO configuration. The LTE bandwidth is 10MHz.



116

Table 10-39 Power consumption (MRFUd operating in the 900 MHz frequency bandconfigured)

Cabinet

Mode Configuration OutputPower ofEachCarrier (W)


MaximumPowerConsumption (W)

BTS3900(Ver.C)(-48 V)

GSM

S2/2/2 20 620 715

S4/4/4 20 720 1040

S6/6/6 20 1000 1505

S8/8/8 20 1095 1825

UMTS3 x 1 20 510 570

3 x 2 20 585 750

LTE 3 x 10 MHz 40 945 1245

GSM +UMTS

GSM S2/2/2 +UMTS 3 x 1

l GSM: 20l UMTS:

20

785 965


l GSM: 20l UMTS:

20

835 1160


l GSM: 20l UMTS:

20

1065 1425

GSM + LTE

GSM S2/2/2 + LTE3 x 10 MHz

l GSM: 20l LTE: 40

1260 1635


l GSM: 20l LTE: 40

1320 1815


l GSM: 20l LTE: 40

1380 1995

BTS3900L(Ver.C)(-48 V)

GSM

S2/2/2 20 650 755

S4/4/4 20 800 1145

S6/6/6 20 1025 1610

S8/8/8 20 1130 1910

UMTS3 x 1 20 540 600

3 x 2 20 615 780

LTE 3 x 10 MHz 40 975 1275



117

Cabinet




GSM +UMTS


l GSM: 20l UMTS:

20

850 1045


l GSM: 20l UMTS:

20

895 1195


l GSM: 20l UMTS:

20

1075 1480

GSM + LTE


l GSM: 20l LTE: 40

1290 1665


l GSM: 20l LTE: 40

1350 1845


l GSM: 20l LTE: 40

1410 2025

BTS3900A(Ver.C)(-48 V)

GSM

S2/2/2 20 650 755

S4/4/4 20 800 1145

S6/6/6 20 1025 1610

S8/8/8 20 1130 1910

UMTS3 x 1 20 540 600

3 x 2 20 615 780

LTE 3 x 10 MHz 40 975 1275

GSM +UMTS


l GSM: 20l UMTS:

20

850 1045


l GSM: 20l UMTS:

20

895 1195


l GSM: 20l UMTS:

20

1075 1480

GSM + LTEGSM S2/2/2 + LTE3 x 10 MHz

l GSM: 20l LTE: 40

1290 1665



118

Cabinet





l GSM: 20l LTE: 40

1350 1845


l GSM: 20l LTE: 40

1410 2025

Table 10-40 Power consumption (MRFUd operating in the 1800 MHz frequency bandconfigured)

Cabinet




BTS3900(Ver.C)(-48 V)

GSM

S2/2/2 20 635 730

S4/4/4 20 735 1060

S6/6/6 20 1030 1540

S8/8/8 20 1130 1860

UMTS3 x 1 20 510 585

3 x 2 20 600 795

LTE 3 x 10 MHz 40 960 1275

GSM +UMTS


l GSM: 20l UMTS:

20

800 985


l GSM: 20l UMTS:

20

850 1180


l GSM: 20l UMTS:

20

1090 1455

GSM + LTE


l GSM: 20l LTE: 40

1365 1755


l GSM: 20l LTE: 40

1410 1920



119

Cabinet





l GSM: 20l LTE: 40

1425 2070

BTS3900L(Ver.C)(-48 V)

GSM

S2/2/2 20 650 770

S4/4/4 20 800 1160

S6/6/6 20 1115 1640

S8/8/8 20 1145 1985

UMTS3 x 1 20 540 615

3 x 2 20 630 825

LTE 3 x 10 MHz 40 990 1305

GSM +UMTS


l GSM: 20l UMTS:

20

865 1060


l GSM: 20l UMTS:

20

910 1225


l GSM: 20l UMTS:

20

1075 1480

GSM + LTE


l GSM: 20l LTE: 40

1395 1785


l GSM: 20l LTE: 40

1440 1950


l GSM: 20l LTE: 40

1455 2100

BTS3900A(Ver.C)(-48 V)

GSM

S2/2/2 20 650 770

S4/4/4 20 800 1160

S6/6/6 20 1115 1640

S8/8/8 20 1145 1985

UMTS3 x 1 20 540 615

3 x 2 20 630 825

LTE 3 x 10MHz 40 990 1305



120

Cabinet




GSM +UMTS


l GSM: 20l UMTS:

20

865 1060


l GSM: 20l UMTS:

20

910 1225


l GSM: 20l UMTS:

20

1075 1480

GSM + LTE


l GSM: 20l LTE: 40

1395 1785


l GSM: 20l LTE: 40

1440 1950


l GSM: 20l LTE: 40

1455 2100

Engineering SpecificationsTable 10-41 shows equipment specifications of an MRFUd.

Table 10-41 Equipment specifications of an MRFUd


MRFUd 9 U x 14 HP x 308.5 mm(with the panel)

≤12

Table 10-42 shows the surge protection specifications for the ports on an MRFUd.

NOTE





121

Table 10-42 Surge protection specifications for the ports on an MRFUd

Port UsageScenario




2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA


Surge 250 A



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

Antenna CapabilitiesTable 10-43 shows antenna capabilities for an MRFUd.

Table 10-43 Antenna capabilities for an MRFUd


MRFUd Supported Supports AISG2.0 and AISG1.1


10.1.5 Technical Specifications for MRFUeAdopting the software-defined radio (SDR) technology, MRFUe modules can work in differentmodes with different configurations.



122

Supported Modes and Frequency BandsTable 10-44 shows the modes and frequency bands supported by an MRFUe.

Table 10-44 Modes and frequency bands supported by an MRFUe


ReceiveFrequencyBand (MHz)

TransmitFrequencyBand (MHz)

Mode

MRFUe 900 880 to 915 925 to 960 GSM, UMTS,LTE, GU, and GL

1800 1710 to 1785 1805 to 1880

RF SpecificationsTable 10-45 shows RF specifications for an MRFUe.

NOTE




l The MRFUe that works in GSM mode and operates in the 1800 MHz frequency band complies with the EN301 502 V9.2.1 standard. The MRFUe that works in UMTS, LTE, or multiple service ring (MSR) mode andoperates in the 1800 MHz frequency band complies with the ETSI EN 301 908 V5.2.1 and 3GPP TS 37.104standards.


l CD MSR indicates that C and D data is carried on the same transmit channel of an RF module.



123

Table 10-45 RF specifications for an MRFUe

Type


Capacity






MRFUe

1T2R

GSM: 8TRXsUMTS: 4carriersLTE: 2carriers,1.4/3/5/10/15/20MHzbandwidth

GSM:l 900

MHz:-113.7

l 1800MHz:-114

UMTS:l 900

MHz:-125.8

l 1800MHz:-126.1

LTE:l 900

MHz:-106.3

l 1800MHz:-106.6

GSM:l 900

MHz:-116.5

l 1800MHz:-116.8

UMTS:l 900

MHz:-128.6

l 1800MHz:-128.9

LTE:l 900

MHz:-109.1

l 1800MHz:-109.4

GSM:l 900

MHz:-119.2(theoreticalvalue)


UMTS:l 900

MHz:-131.3

l 1800MHz:-131.6

LTE:l 900

MHz:-111.8

l 1800MHz:-112.1

TheMRFUesupportsthemaximum powerconfiguration 1 x80 W.Thetypicalconfigurations areasfollows:l Outp

utPower ofanMRFUe(900MHz/1800MHz,single-mode)

l OutputPowe

Powerconsumption(configured withMRFUe,1800MHz)



124

Type


Capacity






r ofanMRFUe(900MHz/1800MHz,GUMSR)

l OutputPower ofanMRFUe(900MHz/1800MHz,GLMSR)



125

NOTE


l The output power is 1 dB lesser than the standard power when the MRFUe is located at a height of 3500 mto 4500m; and is 2 dB lesser than the standard power when the MRFUe is located at a height of 4500 m to6000m.

l For the MRFUe working in GSM mode: when the S1 configuration is applied, the maximum output powerof each carrier on the MRFUe is 80 W; when the S2 configuration is applied, the maximum output powerof each carrier on the MRFUe is 60 W. If the output power of 60 W or 80 W is required, the related licensemust be obtained. After design optimization, the 8PSK and GMSK modulation schemes enable the sameoutput power for each carrier on the MRFUe when the S1, S2, or S3 configuration is used. When any of theS4 through S8 configurations is used, the license controlling the GBFD-118104 Enhanced EDGECoverage feature must be obtained. Otherwise, the 8PSK and GMSK modulation schemes cannot enablethe same output power for each carrier on the MRFUe.



Table 10-46 Output Power of an MRFUe (900 MHz/1800 MHz, single-mode)

Mode








GSM 1 0 0 80 80 0 0

2 0 0 60 60 0 0

3 0 0 40 50 0 0

4 0 0 30 40 0 0

5 0 0 25 30 0 0

6 0 0 20 30 0 0

7 0 0 15 20 0 0

8 0 0 10 16 0 0

UMTS

0 1 0 0 0 80 0

0 2 0 0 0 60 0

0 3 0 0 0 40 0

0 4 0 0 0 30 0



126

Mode








LTE 0 0 1 0 0 0 5/10/15/20 MHz:1 x 601.4/3MHz: 1x 40

0 0 2 0 0 0 5/10/15/20 MHz:1 x 601.4/3MHz: 1x 40

Table 10-47 Output Power of an MRFUe (900 MHz/1800 MHz, GU MSR)





GSM + UMTS 2 1 40 40

3 1 25 30

4 1 24 20

4 1 20 30

5 1 18 20

5 1 16 30

6 1 13 20

7 1 10 20

1 2 40 40

2 2 20 30

3 2 20 20

3 2 15 30

4 2 18 20



127





5 2 12 20

Table 10-48 Output Power of an MRFUe (900 MHz/1800 MHz, GL MSR)





GSM + LTE 1 1 (MIMO) 60 5/10/15/20MHz: 601.4/3 MHz: 40

2 1 (MIMO) 40 40

3 1 (MIMO) 25 30

3 1 (MIMO) 20 40

4 1 (MIMO) 24 20

4 1 (MIMO) 20 30

5 1 (MIMO) 20 20

5 1 (MIMO) 16 30

6 1 (MIMO) 13 20

7 1 (MIMO) 10 20

NOTE


l The typical power consumption for GSM is reached when the base station works with 30% load and powercontrol and DTX are enabled. The maximum power consumption for GSM is reached when the base stationworks with 100% load.

Table 10-49 Power consumption (configured with MRFUe, 1800 MHz)


OutputPower perCarrier(W)



BTS3900(Ver.C)(-48V)

GSMS9/9/9 20 1715 2750

S10/10/10 20 1880 3035



128


OutputPower perCarrier(W)



S11/11/11 20 2000 3230

S12/12/12 20 2120 3425

BTS3900L(Ver.C)(-48V)

GSM

S9/9/9 20 1745 2780

S10/10/10 20 1910 3065

S11/11/11 20 2030 3260

S12/12/12 20 2150 3455

BTS3900A(Ver.C)(-48V)

GSM

S9/9/9 20 1745 2780

S10/10/10 20 1910 3065

S11/11/11 20 2030 3260

S12/12/12 20 2150 3455

Engineering Specifications

Table 10-50 shows equipment specifications of an MRFUe.

Table 10-50 Equipment specifications of an MRFUe


MRFUe 9 U x 14 HP x 308.5 mm(with the panel)

≤12

Table 10-51 shows the surge protection specifications for the ports on an MRFUe.

NOTE



Table 10-51 Surge protection specifications for the ports on an MRFUe

Port UsageScenario




2 kV (1.2/50 μs)



129

Port UsageScenario


Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA


Surge 250 A



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

Antenna CapabilitiesTable 10-52 shows antenna capabilities for an MRFUe.

Table 10-52 Antenna capabilities for an MRFUe


MRFUe Supported Supports AISG2.0 and AISG1.1


10.2 Technical Specifications for RRUsThis section provides technical specifications for RRUs, including supported modes, frequencybands, RF specifications, engineering specifications, and antenna capabilities.

10.2.1 RRU3004 Technical SpecificationsThe RRU3004 is a Remote Radio Unit (RRU) based on the dual density technology. It supportsdistributed or tower-mounting installation, and is usually used in scenarios requiring medium



130

or small capacity. The RRU3004 supports AC and DC power inputs and performs modulation,demodulation, data processing, and combining and dividing for baseband and RF signals.

Modes and Frequency Bands Supported by an RRU3004Table 10-53 shows the modes and frequency bands supported by an RRU3004.

Table 10-53 Modes and frequency bands supported by an RRU3004




RRU3004 GSM 900 EGSM 880 to 915 925 to 960

900 PGSM 890 to 915 935 to 960

1800 1710 to 1785 1805 to 1880

RF SpecificationsTable 10-54 shows RF specifications for an RRU3004.



131

Table 10-54 RF specifications for an RRU3004


Capacity


Output Power PowerConsumption



RRU3004

2T2R 2carriers

-113 -115.8 RRU3004 (900MHz) outputpowerRRU3004(1800 MHz)output power

Powerconsumption(RRU3004operating in 900MHzconfigured)Powerconsumption(RRU3004operating in 1800MHzconfigured)

Table 10-55 RRU3004 (900 MHz) output power


1 30 W (GMSK)/20 W (8PSK)

2 30 W (GMSK)/20 W (8PSK)

3 15 W (GMSK)/10 W (8PSK)

4 15 W (GMSK)/10 W (8PSK)

1 (PBT) 40 W (GMSK)/26 W (8PSK)

Table 10-56 RRU3004 (1800 MHz) output power


1 20 W (GMSK)/13 W (8PSK)



132


2 20 W (GMSK)/13 W (8PSK)

3 10 W (GMSK)/6.6 W (8PSK)

4 10 W (GMSK)/6.6 W (8PSK)

1 (PBT) 30 W (GMSK)/20 W (8PSK)

Table 10-57 Power consumption (RRU3004 operating in 900 MHz configured)



DBS3900 S2/2/2, TOC =30 W

480 700

Table 10-58 Power consumption (RRU3004 operating in 1800 MHz configured)



DBS3900 S2/2/2, TOC =20 W

480 720

NOTE

l The typical and maximum power consumption in the preceding table refers to the power consumptionat the temperature of 25°C.

l The typical power consumption is reached when the RRU3004 works with 30% load.

l TOC in the preceding table refers to the cabinet-top power of BTSs with duplex ports.

l The preceding table uses the power consumption of DBS3900 -48 V DC as an example.


Table 10-59 shows equipment specifications for an RRU3004.

Table 10-59 Equipment specifications for an RRU3004

Type Input PowerSpecifications

Dimension (H x Wx D)

Weight (kg)

RRU3004 -48 V DC Voltagerange: -36 V DC to-57 V DC

485 mm x 380 mm x130 mm (with thehousing)

17 (with the housing)



133

Table 10-60 shows environment specifications for an RRU3004.

Table 10-60 Environment specifications for an RRU3004

Type OperatingTemperature

RelativeHumidity

AbsoluteHumidity

AtmosphericPressure

RRU3004 -40°C to +50°C(without solarradiation)-40°C to +45°C(with solarradiation)

5% RH to 100%RH

1 g/m3 to 30 g/m3

70 kPa to 106kPa

Table 10-61 shows the standards with which an RRU3004 complies.

Table 10-61 Standards with which an RRU3004 complies

Type OperatingEnvironment

Anti-SeismicPerformance

Protection Level

RRU3004 Standardsl 3GPP TS 45.005l ETSI EN

300019-1-4V2.1.2 (2003-04)Class 4.1: "Non-weatherprotectedlocations"

NEBS GR63 zone4 IP65

Table 10-62 describes the surge protection specifications for RRU3004 ports.

NOTE



Table 10-62 Surge protection specifications for the ports on an RRU3004

Port UsageScenario


DC powersupply port



2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)



134

Port UsageScenario


Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA

AC powersupply port

Applicableto thescenariowhereRRU3004modules areinstalledindoors


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

5 kA

Commonmode

5 kA

Applicableto thescenariowhereRRU3004modules areconfiguredremotely orplacedoutdoors


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

40 kA

Commonmode

40 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA



Surge 250 A

RGPS port Applicableto allscenarios

Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

AISG RETantenna port


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surgecurrent

Differentialmode

250 A



135

Port UsageScenario


Commonmode

250 A

I2C port on alocal powermonitoringdevice andan alarm port

Applicableto thescenariowherebatteriesundermonitoringand RRUsare installedback toback or thescenariowhere thedistancebetweenthem iswithin 1 m.

Surge 250 A

Antenna CapabilitiesTable 10-63 shows antenna capabilities for an RRU3004.

Table 10-63 Antenna capabilities for an RRU3004


RRU3004 Not supported Supports AISG1.1

NOTE

l An external BT is required if an RRU3004 needs to be configured with a TMA.

l For RRUs supporting RET antennas, the feed voltage is 12 V and feed current is 2.3 A.

10.2.2 RRU3008 Technical SpecificationsThe RRU3008 is a Remote Radio Unit (RRU) based on the multi-carrier technology. It is usuallyused in scenarios requiring large capacity. The RRU3008 supports AC and DC power inputsand performs modulation, demodulation, data processing, and combining and dividing forbaseband and RF signals.

Modes and Frequency Bands Supported by an RRU3008Table 10-64 shows the modes and frequency bands supported by an RRU3008.



136





RRU3008V1

GSM 850 824 to 849 869 to 894

1800 1710 to 1755 1805 to 1850

1740 to 1785 1835 to 1880

1900 1850 to 1890 1930 to 1970

1870 to 1910 1950 to 1990

RRU3008V2

GSM 900 EGSM 880 to 915 925 to 960

900 PGSM 890 to 915 935 to 960

900 CMCC 885 to 910 930 to 955


NOTE

A x B W in the Output Power column indicates that this RF module is configured with A transmit channelsand the maximum output power of each transmit channel is B W.



137


Type TransmitandReceiveChannels

Capacity


Output Power PowerConsumption



RRU3008 V1

2T2R 8carriers

-113 -115.8 The RRU3008V1 supports themaximumpowerconfiguration 2x 40 W. Fortypicalconfigurationsof theRRU3008 V1,see theRRU3008 V1(850/1800/1900 MHz) outputpower table.

Powerconsumption(RRU3008 V1operating in900/1800MHzconfigured)Powerconsumption(RRU3008 V1operating in850/1900MHzconfigured)

RRU3008 V2

l 900EGSM:-113.3

l 900PGSM/900CMCC:-113.5

l 900EGSM:-116.1

l 900PGSM/900CMCC:-116.3

The RRU3008V2 supports themaximumpowerconfiguration 2x 40 W. Fortypicalconfigurationsof theRRU3008 V2see theRRU3008 V2(900 MHz)output powertable.

Powerconsumption(RRU3008 V2operating in 900MHzconfigured)



138

Table 10-66 RRU3008 V1 (850/1800/1900 MHz) output power

CarrierNumber


BCCH Carrier Output Power(Power Sharing Enabled)



5 12 W (GMSK)/8.0 W (8PSK) 12 W (GMSK)/8.0 W (8PSK)

6 10 W (GMSK)/6.6 W (8PSK) 12 W (GMSK)/8.0 W (8PSK)

7 7.0 W (GMSK)/4.6 W (8PSK) 8.0 W (GMSK)/5.3 W (8PSK)

8 5.5 W (GMSK)/3.6 W (8PSK) 7.0 W (GMSK)/4.6 W (8PSK)

Table 10-67 RRU3008 V2 (900 MHz) output power

CarrierNumber


BCCH Carrier Output Power(Power Sharing Enabled)







NOTE

l After design optimization, RRU3008 modules with the configuration of S1 to S6 have the same outputpower no matter they use the Gaussian minimum shift-frequency keying (GMSK) or 8 phase shiftkeying (8PSK) modulation scheme.

l With the GBFD-118104 Enhanced EDGE Coverage feature, RRU3008 modules with theconfiguration of S7 to S8 can also have the same output power no matter they use the GMSK or8PSK modulation scheme.

l RF standard: EN 301 502 V9.2.1.

Table 10-68 Power consumption (RRU3008 V1 operating in 900/1800 MHz configured)



DBS3900 S4/4/4, TOC =20 W

720 1260

S6/6/6, TOC =12 W

640 1180



139

Table 10-69 Power consumption (RRU3008 V1 operating in 850/1900 MHz configured)



DBS3900 S4/4/4, TOC =20 W

700 1220

S6/6/6, TOC =12 W

620 1130

Table 10-70 Power consumption (RRU3008 V2 operating in 900 MHz configured)



DBS3900 S4/4/4, TOC =20 W

640 1130

S6/6/6, TOC =15 W

630 1270

NOTE

l TOC refers to the cabinet-top power of BTSs with duplex ports.

l The typical power consumption is reached when the RRU3008 works with 30% load.

Engineering SpecificationsTable 10-71 shows equipment specifications for an RRU3008.


Type Input PowerSpecifications

Dimensions (H xW x D)

Weight (kg)

RRU3008 -48 V DC, voltagerange: -36 V DC to-57 V DC

485 mm x 380 mm x170 mm (with thehousing)





140


Type Operatingtemperature

RelativeHumidity

AbsoluteHumidity

AtmosphericPressure

RRU3008 V1 l -40°C to+50°C(withoutsolarradiation)

l -40°C to+45°C (withsolarradiation)

5% RH to 100%RH

1 g/m3 to 30 g/m3

70 kPa to 106kPa

RRU3008 V2 l -40°C to+55°C(withoutsolarradiation)

l -40°C to+50°C (withsolarradiation)





Protection Level

RRU3008 Standardsl 3GPP TS 45.005l ETSI EN

300019-1-4V2.1.2 (2003-04)Class 4.1: "Non-weatherprotectedlocations"


Table 10-74 and Table 10-75 describes the surge protection specifications for RRU3008 ports.

NOTE





141

Table 10-74 Surge protection specifications for the ports on an RRU3008 V1

Port UsageScenario


DC powersupply port



2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA

AC powersupply port

Applicableto thescenariowhereRRU3008modules areinstalledindoors


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

5 kA

Commonmode

5 kA

Applicableto thescenariowhereRRU3008modules areconfiguredremotely orplacedoutdoors


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

40 kA

Commonmode

40 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA



Surge 250 A


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



142

Port UsageScenario


AISG RETantenna port


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surgecurrent

Differentialmode

250 A

Commonmode

250 A



Surge 250 A

Table 10-75 Surge protection specifications for the ports on an RRU3008 V2

Port UsageScenario


DC powersupply port



2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA

AC powersupply port

Applicableto thescenario


2 kV (1.2/50 μs)



143

Port UsageScenario


whereRRU3008V2 modulesare installedindoors

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

5 kA

Commonmode

5 kA

Applicableto thescenariowhereRRU3008V2 areconfiguredremotely orplacedoutdoors


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

40 kA

Commonmode

40 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA



Surge 250 A


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

RET antennaport


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



144

Port UsageScenario




Surge 250 A




RRU3008 Supported Supports AISG2.0 andAISG1.1

NOTE

For RRUs supporting RET antennas, the feed voltage is 12 V and feed current is 2.3 A.

10.2.3 Technical Specifications for RRU3908RRU3908s are classified into RRU3908 V1 and RRU3908 V2. Adopting the software-definedradio (SDR) technology, RRU3908 modules can work in different modes with differentconfigurations.

Supported Modes and Frequency BandsTable 10-77 shows the modes and frequency bands supported by an RRU3908.



145





Mode

RRU3908V1

850 824 to 849 869 to 894 GSM and UMTS

900 890 to 915 935 to 960 GSM, UMTS,and GSM +UMTS880 to 905 925 to 950

1800 1710 to 1755 1805 to 1850 GSM and LTE

1740 to 1785 1835 to 1880

1900 1850 to 1890 1930 to 1970 GSM and UMTS

1870 to 1910 1950 to 1990

RRU3908V2

850 824 to 849 869 to 894 GSM, UMTS,and GSM +UMTS


880 to 915 925 to 960


NOTE




l RRU3908 modules operating in GSM mode and in the 900 or 1800 MHz frequency band comply with thestandard EN 301 502 V9.2.1.

l RRU3908 modules operating in UMTS, LTE, or Multi-Standard Radio (MSR) mode and in 900 or 1800MHz frequency band comply with the standard ETSI EN 301 908 V5.2.1 and 3GPP TS 37.104.

l RRU3908 modules operating in GSM mode and in the 850 or 1900 MHz frequency band comply with thestandard 3GPP TS 45.005 V10.2.0 & 3GPP TS 51.021 V10.2.0.

l RRU3908 modules operating in UMTS, LTE, or Multi-Standard Radio (MSR) mode and in 850 or 1900MHz frequency band comply with the standard 3GPP TS 37.104 V10.4.0 & TS 37.141 V10.4.0.





146


Type


Capacity






RRU3908V1

2T2R

GSM: 6TRXsUMTS: 4carriersLTE: 1carrier,thebandwidth is 5, 10,15, or 20MHz.

GSM: -113UMTS:-125.5LTE: -106.3

GSM:-115.8UMTS:-128.3LTE: -109.1

GSM:-118.5(theoreticalvalue)UMTS: -131LTE: -111.8

TheRRU3908 V1supportsthemaximum powerconfiguration 2 x40 W.Thetypicalconfigurations areasfollows:l Outp

utPower ofanRRU3908V1(850MHz/900MHz/1800MHz/1900MHz,singl

l Powerconsumption oftheDBS3900(configuredwithRRU3908V1,900MHz)

l Powerconsumption oftheDBS3900(configuredwithRRU3908V1,1800MHz)



147

Type


Capacity






e-mode)

l OutputPower ofanRRU3908V1(900MHz,GUNon-MSR)



148

Type


Capacity






RRU3908V2

2T2R

GSM: 8TRXsUMTS:l 850

MHz:2carriers

l 900MHz:4carriers

LTE: 1carrier,thebandwidth is 1.4,3, 5, 10,15, or 20MHz.

GSM:l 850/900

MHzPGSM:-113.5


UMTS:l 850/900

MHzPGSM:-125.5


LTE:l 900 MHz

PGSM:-106.3


GSM:l 850/900

MHzPGSM:-116.3


UMTS:l 850/900

MHzPGSM:-128.3


LTE:l 900 MHz

PGSM:-109.1


GSM:l 850/900

MHzPGSM:-119(theoreticalvalue)

l 900 MHzEGSM:-118.8(theoreticalvalue)

UMTS:l 850/900

MHzPGSM:-131


LTE:l 900 MHz

PGSM:-111.8


TheRRU3908 V2supportsthemaximum powerconfiguration 2 x40 W.Thetypicalconfigurations areasfollows:l Outp

utPower ofanRRU3908V2(850MHz/900MHz,single-mode)

l Output

Powerconsumption oftheDBS3900(configured withRRU3908 V2, 850MHz/900MHz)



149

Type


Capacity






Power ofanRRU3908V2(850MHz/900MHz,GUNon-MSR)

l OutputPower ofanRRU3908V2(850MHz/900MHz,GUMSR)

l OutputPower ofan



150

Type


Capacity






RRU3908V2(900MHz,GLMSR)

NOTE

l * indicates that the UMTS mode is supported in terms of hardware.


l The output power is 1 dB lesser than the standard power when the RRU3908 is located at a height of 3500m to 4500m; and is 2 dB lesser than the standard power when the RRU3908 is located at a height of 4500m to 6000m.

l For the RRU3908 V2 working in GSM mode and operating in the 900 MHz frequency band: after designoptimization, the 8PSK and GMSK modulation schemes enable the same output power for each carrier onthe RRU3908 V2 when any of the S1 through S6 configurations is used. When the S7 or S8 configurationis used, the license controlling the GBFD-118104 Enhanced EDGE Coverage feature must be obtained.Otherwise, the 8PSK and GMSK modulation schemes cannot enable the same output power for each carrieron the RRU3908 V2.





151

Table 10-79 Output Power of an RRU3908 V1 (850 MHz/900 MHz/1800 MHz/1900 MHz,single-mode)








GSM

1 0 0 40 40 0 0

2 0 0 40 40 0 0

3 0 0 20 20 0 0

4 0 0 15 20 0 0

5 0 0 12 12 0 0

6 0 0 10 12 0 0

UMTS

0 1 0 0 0 40 0

0 1 0 0 0 2 x 30 0

0 2 0 0 0 30 0

0 2 0 0 0 2 x 15 0

0 3* 0 0 0 20* 0

0 4* 0 0 0 15* 0

LTE 0 0 1 (MIMO) 0 0 0 2 x 30

Table 10-80 Output Power of an RRU3908 V1 (900 MHz, GU Non-MSR)





GSM + UMTS 1 1 40 30

1 1 30 40

1 2 30 20

2 1 20 30

2 1 15 40

2 2 15 20

3 1 10 30



152





3 2 10 10

4 1 7.5 20

4 2 7.5 10

5 1 6 20

NOTEWhen operating in the 900 MHz frequency band, RRU3908 V2 supports 3 or 4 UMTS carriers.

Table 10-81 Output Power of an RRU3908 V2 (850 MHz/900 MHz, single-mode)








GSM

1 0 0 40 40 0 0

2 0 0 40 40 0 0

3 0 0 20 20 0 0

4 0 0 20 20 0 0

5 0 0 13 15 0 0

6 0 0 13 15 0 0

7 0 0 10 13 0 0

8 0 0 10 13 0 0

UMTS

0 1 0 0 0 60 0

0 1(MIMO)

0 0 0 2 x 40 0

0 2 0 0 0 40 0

0 2(MIMO)

0 0 0 2 x 20 0

0 3 0 0 0 20 0



153








0 3(MIMO)

0 0 0 2 x 10 0

0 4 0 0 0 20 0

0 4(MIMO)

0 0 0 2 x 10 0

LTE 0 0 1 (MIMO,2T2R)

0 0 0 2 x 40

Table 10-82 Output Power of an RRU3908 V2 (850 MHz/900 MHz, GU Non-MSR)





GSM + UMTS 1 1 40 40

2 1 20 40

3 1 13 40

4 1 10 40

5 1 6 20

1 2 40 20

2 2 20 20

3 2 13 20

4 2 10 20

Table 10-83 Output Power of an RRU3908 V2 (850 MHz/900 MHz, GU MSR)





GSM + UMTS 1 1 20 2 x 20



154





2 1 20 2 x 20

3 1 20 20

3 1 15 2 x 10

4 1 13 20

4 1 15 2 x 10

5 1 10 30

NOTEWhen there are no more than three GSM carriers, LTE bandwidth can be 1.4, 3, 5, 10, or 15 MHz in the 900MHz frequency band. When there are more than three GSM carriers, LTE bandwidth can be 1.4, 3, 5, or 10MHz in the 900 MHz frequency band.

Table 10-84 Output Power of an RRU3908 V2 (900 MHz, GL MSR)





GSM + LTE 1 1 20 2 x 20

2 1 20 2 x 20

3 1 15 2 x 10

4 1 15 2 x 10

4 1 12 2 x 15

NOTE







155

Table 10-85 Power consumption of the DBS3900 (configured with RRU3908 V1, 900 MHz)

Mode Configuration

Output Powerper Carrier (W)

Typical PowerConsumption(W)


GSM S2/2/2 20 760 910

S4/4/4 20 730 1070

S6/6/6 12 730 1070

UMTS 3 x 1 20 490 590

3 x 2 20 640 790

3 x 3 20 880 1100

3 x 4 15 880 1110

GSM +UMTS

GSMS2/2/2 x 2 +UMTS 3 x1

l GSM: 20l UMTS: 20

870 1090

GSMS4/4/4 +UMTS 3 x1

l GSM: 10l UMTS: 20

820 1050


l GSM: 10l UMTS: 10

820 1050

Table 10-86 Power consumption of the DBS3900 (configured with RRU3908 V1, 1800 MHz)

Mode Configuration




GSM S2/2/2 20 615 720

S4/4/4 20 855 1190

LTE 3 x 10 MHz 40 750 880



156

Table 10-87 Power consumption of the DBS3900 (configured with RRU3908 V2, 850 MHz/900 MHz)

Mode Configuration




GSM

S2/2/2 20 550 650

S4/4/4 20 770 1085

S6/6/6 13 740 1085

UMTS3 x 1 20 450 520

3 x 2 20 565 710

LTE 3 x 1 2 x 20 675 800

GSM +UMTS


l GSM: 20l UMTS: 40

920 1170


l GSM: 13l UMTS: 40

890 1170


l GSM: 10l UMTS: 40

880 1180




157


Type Power Supply Dimension (H x W xD)

Weight (kg)

RRU3908V1

l -48 V DC; voltagerange: -36 V DC to-57 V DC

l 200 V AC to 240 VAC single-phase;voltage range: 176 VAC to 290 V AC

l 100 V AC to 120 VAC or 200 V AC to240 V AC dual-phase; voltage range:90 V AC to 135 V ACor 180 V AC to 270V AC

485 mm x 380 mm x 170mm (with the housing)


RRU3908V2

l -48 V DC; voltagerange: -36 V DC to-57 V DC

l 200 V AC to 240 VAC single-phase;voltage range: 176 VAC to 290 V AC

l 100 V AC to 120 VAC or 200 V AC to240 V AC dual-phase; voltage range:90 V AC to 135 V ACor 180 V AC to 270V AC






RelativeHumidity

AbsoluteHumidity

AtmosphericPressure

RRU3908 V1

l -40°C to +50°C (withoutsolar radiation)

l -40°C to +45°C (with solarradiation)

5% RH to 100%RH

1 g/m3 to 30 g/m3 70 kPa to 106 kPa



158


RelativeHumidity

AbsoluteHumidity

AtmosphericPressure

RRU3908 V2






Shock Protection Ingress Protection(IP) Rating

RRU3908V1

l 3GPP TS 45.005l 3GPP TS 25.141l 3GPP TS 36.141l 3GPP TS 37.141l ETSI EN 300019-1-4

V2.1.2 (2003-04)Class 4.1: "Non-weatherprotectedlocations"


RRU3908V2

Table 10-91shows the surge protection specifications for the ports on an RRU3908.

NOTE




Port UsageScenario




2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA



159

Port UsageScenario


Commonmode

20 kA

AC port Applicableto thescenariowhere RFmodules areplacedindoors


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

5 kA

Commonmode

5 kA

Applicableto thescenariowhere RFmodules areplacedoutdoors


2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

40 kA

Commonmode

40 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA


Surge 250 A


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

RET antennaport


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



160

Port UsageScenario


Local powermonitoringport or alarmport

Applicableto thescenariowhere thepowersupplymodule andRRUs areinstalledback toback or thescenariowhere thedistancebetweenthem isshorter than1 m

Surge 250 A

Antenna Capabilities

Table 10-92 shows antenna capabilities for an RRU3908.


Type TMA Capabilites RET AntennaCapabilities

RRU3908 V1 Supported Supports AISG2.0 andAISG1.1

RRU3908 V2 Supported Supports AISG2.0 andAISG1.1

NOTEFor RRUs supporting RET antennas, the feed voltage is 12 V and feed current is 2.3 A.

10.2.4 Technical Specifications for RRU3928Adopting the software-defined radio (SDR) technology, RRU3928 modules can work indifferent modes with different configurations.

Supported Modes and Frequency Bands

Table 10-93 shows the modes and frequency bands supported by an RRU3928.



161





Mode

RRU3928 900 880 to 915 925 to 960 GSM, UMTS,LTE, GSM +UMTS, and GSM+ LTE

1800 1710 to 1785 1805 to 1880


NOTE







l CD Non-MSR indicates that C data is carried on one transmit channel of an RF module while D data iscarried on the other transmit channel of the RF module. CD MSR indicates that Cand D data is carried onthe same transmit channel of an RF module.



162


Type


Capacity






RRU3928

2T2R

GSM: 8TRXsUMTS: 4carriersLTE: 2carriers,thebandwidth is 1.4, 3,5, 10, 15,or 20MHz.

GSM:l 900

MHz:-113.7

l 1800MHz:-114

UMTS:l 900

MHz:-125.8

l 1800MHz:-126.1

LTE:l 900

MHz:-106.3

l 1800MHz:-106.6

GSM:l 900

MHz:-116.5

l 1800MHz:-116.8

UMTS:l 900

MHz:-128.6

l 1800MHz:-128.9

LTE:l 900

MHz:-109.1

l 1800MHz:-109.4

GSM:l 900



UMTS:l 900

MHz:-131.3

l 1800MHz:-131.6

LTE:l 900

MHz:-111.8

l 1800MHz:-112.1

TheRRU3928supportsthemaximum powerconfiguration 2 x40 W.Thetypicalconfigurations areasfollows:l Outp

utPower ofanRRU3928(900MHz/1800MHz,single-mode)

l Output

l Powerconsumption oftheDBS3900(configuredwithRRU3928,900MHz)

l Powerconsumption oftheDBS3900(configuredwithRRU3928,1800MHz)



163

Type


Capacity






Power ofanRRU3928(900MHz/1800MHz,GUNon-MSR)

l OutputPower ofanRRU3928(900MHz/1800MHz,GUMSR)

l OutputPower ofanRRU3928



164

Type


Capacity






(900MHz/1800MHz,GLMSR)

NOTE



l For the RRU3928 working in GSM mode: after design optimization, the 8PSK and GMSK modulationschemes enable the same output power for each carrier on the RRU3928 when any of the S1 through S6configurations is used. When the S7 or S8 configuration is used, the license controlling the GBFD-118104Enhanced EDGE Coverage feature must be obtained. Otherwise, the 8PSK and GMSK modulationschemes cannot enable the same output power for each carrier on the RRU3928.





165

Table 10-95 Output Power of an RRU3928 (900 MHz/1800 MHz, single-mode)

Mode

NumberofGSMCarriers


Number ofLTECarriers

OutputPower perGSMCarrier (W)


OutputPower perUMTSCarrier (W)


GSM

1 0 0 40 40 0 0

2 0 0 40 40 0 0

3 0 0 20 20 0 0

4 0 0 20 20 0 0

5 0 0 13 15 0 0

6 0 0 13 15 0 0

7 0 0 10 13 0 0

8 0 0 10 13 0 0

UMTS

0 1 0 0 0 40 0

0 2 0 0 0 40 0

0 3 0 0 0 20 0

0 4 0 0 0 20 0

0 1(MIMO)

0 0 0 2 x 40 0

0 2(MIMO)

0 0 0 2 x 20 0

0 3(MIMO)

0 0 0 2 x 10 0

0 4(MIMO)

0 0 0 2 x 10 0

LTE

0 0 1 0 0 0 2 x 40

0 0 2 0 0 0 2 x 20



166

Table 10-96 Output Power of an RRU3928 (900 MHz/1800 MHz, GU Non-MSR)





GSM +UMTS

1 1 40 40

2 1 20 40

3 1 13 40

4 1 10 40

1 2 40 20

2 2 20 20

3 2 13 20

4 2 10 20

Table 10-97 Output Power of an RRU3928 (900 MHz/1800 MHz, GU MSR)





GSM +UMTS

3 1 20 20

4 1 13 20

5 1 10 20

1 1 (MIMO) 20 2 x 20

2 1 (MIMO) 20 2 x 20

3 1 (MIMO) 10 2 x 20

4 1 (MIMO) 10 2 x 20

1 2 (MIMO) 20 2 x 10

2 2 (MIMO) 20 2 x 10

3 2 (MIMO) 10 2 x 10

4 2 (MIMO) 10 2 x 10



167

Table 10-98 Output Power of an RRU3928 (900 MHz/1800 MHz, GL MSR)


Number of LTECarriers


Output Powerper LTE Carrier(W)

GSM +LTE

1 1 (MIMO) 20 2 x 20

2 1 (MIMO) 20 2 x 20

3 1 (MIMO) 10 2 x 20

3 1 (MIMO) 15 2 x 10

4 1 (MIMO) 10 2 x 20

4 1 (MIMO) 15 2 x 10

5 1 (MIMO) 10 2 x 10

6 1 (MIMO) 10 2 x 10

NOTE






Table 10-99 Power consumption of the DBS3900 (configured with RRU3928, 900 MHz)

Mode Configuration Output Powerper Carrier(W)



GSM S2/2/2 20 560 650

S4/4/4 20 740 1025

UMTS 3 x 1 20 510 585

3 x 2 20 585 720

LTE 3 x 10 MHz 40 900 1110

GSM + UMTS GSM S2/2/2 +UMTS 3 x 1

l GSM: 20l UMTS: 20

820 985



168

Mode Configuration Output Powerper Carrier(W)




l GSM: 20l UMTS: 20

865 1120

GSM + LTE GSM S2/2/2 +LTE 3 x 10 MHz

l GSM: 20l LTE: 40

930 1140

GSM S3/3/3 +LTE 3 x 10 MHz

l GSM: 20l LTE: 40

870 1065


l GSM: 20l LTE: 40

850 1140


Mode Configuration

Output Power perCarrier (W)



GSM S2/2/2 20 560 665

S4/4/4 20 755 1040

UMTS 3 x 1 20 525 585

3 x 2 20 600 735

LTE 3 x 10 MHz 40 915 1125


l GSM: 20l UMTS: 20

835 1000


l GSM: 20l UMTS: 20

880 1135

GSM + LTE GSM S2/2/2 +LTE 3 x 10MHz

l GSM: 20l LTE: 40

945 1155

GSM S3/3/3 +LTE 3 x 10MHz

l GSM: 20l LTE: 40

885 1095

GSM S4/4/4 +LTE 3 x 10MHz

l GSM: 20l LTE: 40

900 1155



169


Table 10-101 shows equipment specifications for an RRU3928.



Weight (kg)

RRU3928 -48 V DC; voltage range:-36 V DC to -57 V DC






RelativeHumidity

AbsoluteHumidity

AtmosphericPressure

RRU3928



5% RH to 100%RH






RRU3928 l 3GPP TS 45.005l 3GPP TS 25.141l 3GPP TS 36.141l 3GPP TS 37.141l ETSI EN 300019-1-4



Table 10-104 shows the surge protection specifications for the ports on an RRU3928.



170

NOTE




Port UsageScenario




2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA


Surge 250 A


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

RET antennaport


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



171

Port UsageScenario




Surge 250 A










172





Mode

RRU3929 900 880 to 915 925 to 960 GSM, UMTS,LTE, GSM +UMTS, and GSM+ LTE

1800 1710 to 1785 1805 to 1880


NOTE










173


Type


Capacity






RRU3929

2T2R


MIMO: 6carriers

l MIMO: 4carriers

LTE: 2carriers,thebandwidth is 1.4, 3,5, 10, 15,or 20MHz.

GSM:l 900

MHz:-113.7

l 1800MHz:-114

UMTS:l 900

MHz:-125.8

l 1800MHz:-126.1

LTE:l 900

MHz:-106.3

l 1800MHz:-106.6

GSM:l 900

MHz:-116.5

l 1800MHz:-116.8

UMTS:l 900

MHz:-128.6

l 1800MHz:-128.9

LTE:l 900

MHz:-109.1

l 1800MHz:-109.4

GSM:l 900



UMTS:l 900

MHz:-131.3

l 1800MHz:-131.6

LTE:l 900

MHz:-111.8

l 1800MHz:-112.1



l Output

Powerconsumption oftheDBS3900(configured withRRU3929, 900MHz/1800MHz)



174

Type


Capacity








l OutputPower ofanRRU3929



175

Type


Capacity






(900MHz/1800MHz,GLMSR)

NOTE



l For the RRU3929 working in GSM mode: when the S1 or S2 configuration is applied, the maximum outputpower of each carrier on the RRU3929 is 60 W. If the output power of 60 W is required, the related licensemust be obtained. After design optimization, the 8PSK and GMSK modulation schemes enable the sameoutput power for each carrier on the RRU3929 when any of the S1 through S6 configurations is used. Whenthe S7 or S8 configuration is used, the license controlling the GBFD-118104 Enhanced EDGECoverage feature must be obtained. Otherwise, the 8PSK and GMSK modulation schemes cannot enablethe same output power for each carrier on the RRU3929.





176


Mode








GSM 1 0 0 60 60 0 0

2 0 0 60 60 0 0

3 0 0 30 30 0 0

4 0 0 30 30 0 0

5 0 0 20 25 0 0

6 0 0 20 25 0 0

7 0 0 15 20 0 0

8 0 0 15 20 0 0

UMTS

0 1 0 0 0 60 0

0 2 0 0 0 60 0

0 3 0 0 0 30 0

0 4 0 0 0 30 0

0 5 0 0 0 20 0

0 6 0 0 0 20 0

0 1(MIMO)

0 0 0 2 x 40 0

0 2(MIMO)

0 0 0 2 x 30 0

0 3(MIMO)

0 0 0 2 x 20 0

0 4(MIMO)

0 0 0 2 x 15 0

LTE 0 0 1 0 0 0 5/10/15/20 MHz:2 x 601.4/3MHz: 2 x40

0 0 2 0 0 0 2 x 30



177

Mode








0 0 2 0 0 0 Carrier1:2 x 20Carrier2:2 x 40






GSM +UMTS

1 1 60 60

1 2 60 30

1 3 60 20

2 1 30 60

2 2 30 30

2 3 30 20

2 4 30 15

3 1 20 60

3 2 20 30

3 3 20 20

3 4 20 15

4 1 15 60

4 2 15 30

4 3 15 20

4 4 15 15

5 1 10 60

5 2 10 30

5 3 10 20

6 1 7 60



178





6 2 7 30






GSM + UMTS 1 2 30 30

1 2 20 40

2 1 40 20

2 1 30 30

2 2 20 40

2 2 30 30

2 2 40 20

3 1 30 30

3 1 20 40

3 2 20 20

3 2 15 30

4 1 20 40

4 2 20 20

4 2 15 30

5 1 20 20

5 1 15 30

5 2 13 20

6 1 15 30

6 2 12 20

7 1 10 20

1 1 (MIMO) 20 2 x 40

1 1 (MIMO) 30 2 x 30

1 1 (MIMO) 40 2 x 20



179





1 2 (MIMO) 20 2 x 20

2 1 (MIMO) 20 2 x 40

2 1 (MIMO) 30 2 x 30

2 1 (MIMO) 40 2 x 20

2 2 (MIMO) 20 2 x 20

2 2 (MIMO) 30 2 x 15

3 1 (MIMO) 20 2 x 20

3 1 (MIMO) 15 2 x 30

3 2 (MIMO) 15 2 x 15

3 2 (MIMO) 20 2 x 10

3 2 (MIMO) 10 2 x 20

4 1 (MIMO) 20 2 x 20

4 1 (MIMO) 15 2 x 30

4 2 (MIMO) 15 2 x 15

4 2 (MIMO) 20 2 x 10

4 2 (MIMO) 10 2 x 20

Table 10-111 Output Power of an RRU3929 (900 MHz/1800 MHz, GL MSR)





GSM + LTE 1 1 (MIMO) 40 2 x 20

1 1 (MIMO) 30 2 x 30

1 1 (MIMO) 20 2 x 40

2 1 (MIMO) 40 2 x 20

2 1 (MIMO) 30 2 x 30

2 1 (MIMO) 20 2 x 40

3 1 (MIMO) 20 2 x 20

4 1 (MIMO) 20 2 x 20



180





5 1 (MIMO) 12 2 x 20

6 1 (MIMO) 12 2 x 20

NOTE






Table 10-112 DBS3900 power consumption (RRU3929 operating in the 900 or 1800 MHzfrequency band configured)

Mode Configuration Output Powerof EachCarrier (W)



GSM S2/2/2 20 675 795

S4/4/4 20 915 1260

S6/6/6 20 1005 1530

UMTS 3 x 1 20 585 675

3 x 2 20 660 840

LTE 3 x 10 MHz 40 990 1290


l GSM: 20l UMTS: 20

850 1030


l GSM: 20l UMTS: 20

1060 1360


l GSM: 20l UMTS: 20

1105 1495

GSM + LTE GSM S2/2/2 +LTE 3 x 10 MHz

l GSM: 20l LTE: 40

1305 1660



181





l GSM: 20l LTE: 40

1155 1525


l GSM: 20l LTE: 40

1215 1660




Weight (kg)







RelativeHumidity

AbsoluteHumidity

AtmosphericPressure

RRU3929



5% RH to 100%RH





182








NOTE




Port UsageScenario




2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA


Surge 250 A


Surgecurrent

Differentialmode

3 kA



183

Port UsageScenario


Commonmode

5 kA

RET antennaport


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surge 250 A








184







Mode

RRU3942 1900 1850 to 1910 1930 to 1990 GSM, UMTS,and GSM +UMTS

850 824 to 849 869 to 894 GSM, UMTS,and GSM +UMTS


NOTE

l The receiver sensitivity of GSM, as recommended in 3GPP TS 51.021, is measured in the central band (80%of the entire operating band, excluding the edge band) at the antenna connector on the condition that thechannel rate is 13 kbit/s and the Bit Error Rate (BER) is not higher than 2%.

l The receiver sensitivity of UMTS, as recommended in 3GPP TS 25.104, is measured in the entire operatingband at the antenna connector on the condition that the channel rate is 12.2 kbit/s and the BER is not higherthan 0.001.

l The RRU3942 that works in GSM mode and operates in the 1900 MHz frequency band complies with the3GPP TS 45.005 V10.2.0 and 3GPP TS 51.021 V10.2.0 standards. The RRU3942 that works in UMTS ormultiple service ring (MSR) mode and operates in the 1900 MHz frequency band complies with the 3GPPTS 37.104 V10.4.0 and TS 37.141 V10.4.0 standards.

l A x B W in the Output Power column indicates that this RF module is configured with A transmit channelsand the maximum output power of each transmit channel is B W. E W + F W in the Output Power columnindicates that this RF module is configured with 2 transmit channels and the maximum output power of thetransmit channel is E W and F W, respectively.




185


Type


Capacity






RRU3942

2T2R


MIMO: 6carriers

l MIMO: 4carriers

GSM (1900MHz):-113.7UMTS(1900MHz):-125.8

GSM (1900MHz):-116.5UMTS(1900MHz):-128.6

GSM (1900MHz):-119.2(theoreticalvalue)UMTS(1900MHz):-131.3



l Output

Powerconsumption oftheDBS3900(configured withRRU3942, 1900MHz)



186

Type


Capacity










187

NOTE



l For the RRU3942 working in GSM mode: when the S1 or S2 configuration is applied, the maximum outputpower of each carrier on the RRU3942 is 60 W. If the output power of 60 W is required, the related licensemust be obtained. After design optimization, the 8PSK and GMSK modulation schemes enable the sameoutput power for each carrier on the RRU3942 when any of the S1 through S6 configurations is used. Whenthe S7 or S8 configurations is used, the license controlling the GBFD-118104 Enhanced EDGECoverage feature must be obtained. Otherwise, the 8PSK and GMSK modulation schemes cannot enablethe same output power for each carrier on the RRU3942.






OutputPower perGSM Carrier(W)



GSM 1 0 60 60 0

2 0 60 60 0

3 0 30 30 0

4 0 30 30 0

5 0 20 25 0

6 0 20 25 0

7 0 15 20 0

8 0 15 20 0

UMTS 0 1 0 0 60

0 2 0 0 60

0 3 0 0 30

0 4 0 0 30

0 5 0 0 20



188



OutputPower perGSM Carrier(W)



0 6 0 0 20

0 1 (MIMO) 0 0 2 x 40

0 2 (MIMO) 0 0 2 x 30

0 3 (MIMO) 0 0 2 x 20

0 4 (MIMO) 0 0 2 x 15






GSM +UMTS

1 1 60 60

1 2 60 30

1 3 60 20

2 1 30 60

2 2 30 30

2 3 30 20

2 4 30 15

3 1 20 60

3 2 20 30

3 3 20 20

3 4 20 15

4 1 15 60

4 2 15 30

4 3 15 20

4 4 15 15

5 1 10 60

5 2 10 30

5 3 10 20



189





6 1 7 60

6 2 7 30






GSM + UMTS 1 2 30 30

1 2 20 40

2 1 40 20

2 1 30 30

2 2 20 40

2 2 30 30

2 2 40 20

3 1 30 30

3 1 20 40

3 2 20 20

3 2 15 30

4 1 20 40

4 2 20 20

4 2 15 30

5 1 20 20

5 1 15 30

5 2 13 20

6 1 15 30

6 2 12 20

7 1 10 20

1 1 (MIMO) 20 2 x 40

1 1 (MIMO) 30 2 x 30



190





1 1 (MIMO) 40 2 x 20

1 2 (MIMO) 20 2 x 20

2 1 (MIMO) 20 2 x 40

2 1 (MIMO) 30 2 x 30

2 1 (MIMO) 40 2 x 20

2 2 (MIMO) 20 2 x 20

2 2 (MIMO) 30 2 x 15

3 1 (MIMO) 20 2 x 20

3 1 (MIMO) 15 2 x 30

3 2 (MIMO) 15 2 x 15

3 2 (MIMO) 20 2 x 10

3 2 (MIMO) 10 2 x 20

4 1 (MIMO) 20 2 x 20

4 1 (MIMO) 15 2 x 30

4 2 (MIMO) 15 2 x 15

4 2 (MIMO) 20 2 x 10

4 2 (MIMO) 10 2 x 20

NOTE


l The typical power consumption for GSM is reached when the base station works with 30% load and powercontrol and DTX are enabled. The maximum power consumption for GSM is reached when the base stationworks with 100% load.


l The power consumption for GSM is calculated based on the sharing power.



191


Mode Configuration

Output Powerper Carrier(W)



GSM S2/2/2 20 690 800

S4/4/4 20 935 1265

S6/6/6 20 1100 1660

UMTS 3 x 1 20 635 715

3 x 2 20 765 910


l GSM: 20l UMTS: 20

1020 1205


l GSM: 20l UMTS: 20

1100 1405


l GSM: 20l UMTS: 20

1200 1545




Weight (kg)







192



RelativeHumidity

AbsoluteHumidity

AtmosphericPressure

RRU3942



5% RH to 100%RH










NOTE




Port UsageScenario




2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)



193

Port UsageScenario


Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA


Surge 250 A


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA

RET antennaport


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surge 250 A



194






10.2.7 Technical Specifications for RRU3926RRU3926 modules are remote radio units and can work in different modes with differentconfigurations and the software-defined radio (SDR) technique.

Supported Modes and Frequency BandsTable 10-129 lists the modes and frequency bands supported by an RRU3926.





Mode

RRU3926 900 880 to 915 925 to 960 GSM, UMTS,GSM + UMTS

890 to 915 935 to 960

1800 1710 to 1785 1805 to 1880

RF SpecificationsTable 10-130 lists radio frequency (RF) specifications of an RRU3926.



195

NOTE



l The RRU3926 that works in GSM mode and operates in the 900 or 1800 MHz frequency band complieswith the EN 301 502 V9.2.1 standard. The RRU3926 that works in UMTS or multiple service ring (MSR)mode and operates in the 900 or 1800 MHz frequency band complies with the ETSI EN 301 908 V5.2.1standard and 3GPP TS 37.104 standard.





196

Table 10-130 RF specifications of an RRU3926

Type


Capacity



Sensitivitywith OneAntenna


ReceiverSensitivitywith FourAntennas

RRU3926

1T2R

GSM: 8TRXsUMTS: 6carriers

GSM:l 900

MHz:-113.7

l 1800MHz:-114

UMTS:l 900

MHz:-125.8

l 1800MHz:-126.1

GSM:l 900

MHz:-116.5

l 1800MHz:-116.8

UMTS:l 900

MHz:-128.6

l 1800MHz:-128.9

GSM:l 900



UMTS:l 900

MHz:-131.3

l 1800MHz:-131.6


utpower ofRRU3926(900/1800MHz,single-mode)

l Outputpower of

l DBS3900powerconsumption(RRU3926operatingin the900MHzfrequencybandconfigured)

l DBS3900powerconsumption(RRU3926operating



197

Type


Capacity



Sensitivitywith OneAntenna


ReceiverSensitivitywith FourAntennas

RRU3926(900/1800MHz,GUMSR)

in the1800MHzfrequencybandconfigured)

NOTE


l If an RRU3926 is placed at an altitude of 3500 to 4500 meters, its power reduces by 1 dB. If an RRU3926is placed at an altitude of 4500 to 6000 meters, its power reduces by 2 dB.

l For the RRU3926 working in GSM mode: when the S1 configuration is applied, the maximum output powerof each carrier on the RRU3926 is 80 W. If the output power of 60 W or 80 W is required, the related licensemust be obtained. After design optimization, the 8PSK and GMSK modulation schemes enable the sameoutput power for each carrier on the RRU3926 when the S1, S2, or S3 configuration is used. When any ofthe S4 through S8 configurations is used, the license controlling the GBFD-118104 Enhanced EDGECoverage feature must be obtained. Otherwise, the 8PSK and GMSK modulation schemes cannot enablethe same output power for each carrier on the RRU3926.





198

Table 10-131 Output power of RRU3926 (900/1800 MHz, single-mode)



Output Powerof Each GSMCarrier (W)

OutputSharingPower of EachGSM Carrier(W)

Output Powerof Each UMTSCarrier (W)

GSM 1 0 80 80 0

2 0 40 40 0

3 0 27 31 0

4 0 20 27 0

5 0 16 20 0

6 0 12 20 0

7 0 10 16 0

8 0 7 12 0

UMTS 0 1 0 0 80

0 2 0 0 40

0 3 0 0 25

0 4 0 0 20

0 5 (hardwareready)

0 0 16

0 6 (hardwareready)

0 0 12

Table 10-132 Output power of RRU3926 (900/1800 MHz, GU MSR)





GU 1 1 40 40

1 2 40 20

2 1 30 20

2 1 20 40

2 2 20 20

3 1 20 20

3 2 16 10



199





4 1 12 20

4 2 12 10

5 1 10 20

5 2 10 10

6 1 10 10

6 2 8 10

7 1 8 10

NOTE

l Typical and maximum power consumption are measured when the environment temperature is 25°C.

l GSM typical power consumption is measured when the base station load reaches 30%, and the power controland DTX functions are enabled. GSM maximum power consumption is measured when the base station loadreaches 100%. GSM power consumption is calculated when the dynamic power sharing function is enabled.

l UMTS typical power consumption is measured when the base station load reaches 40% and UMTSmaximum power consumption is measured when the base station load reaches 100%.

Table 10-133 DBS3900 power consumption (RRU3926 operating in the 900 MHz frequencyband configured)




GSM S2/2/2 20 535 635

S4/4/4 20 655 960

UMTS 3 x 1 20 445 525

3 x 2 20 555 695

GU GSM S2/2/2 +UMTS 3 x 1

l GSM: 20l UMTS: 20

725 885


l GSM: 20l UMTS: 20

795 1045



200

Table 10-134 DBS3900 power consumption (RRU3926 operating in the 1800 MHz frequencyband configured)




GSM S2/2/2 20 587 690

S4/4/4 20 725 1020

Engineering SpecificationsTable 10-135 lists the equipment specifications of an RRU3926.

Table 10-135 Equipment specifications of an RRU3926

Type Input Power Dimension (H x W xD)

Weight (kg)


l 400 mm x 240 mm x160 mm (with theshell)

l 400 mm x 220 mm x140 mm (without theshell)

l 15 (with the shell)l 13.5 (without the

shell)

Table 10-136 lists the environmental specifications of an RRU3926.

Table 10-136 Environmental specifications of an RRU3926


RelativeHumidity

AbsoluteHumidity

AtmosphericPressure

RRU3926



5% RH to 100%RH


Table 10-137 lists the compliance standards for an RRU3926.



201

Table 10-137 Compliance standards for an RRU3926



Protection Rating




Table 10-138 lists the surge protection specifications of ports on an RRU3926.

NOTE



Table 10-138 Surge protection specifications of ports on an RRU3926

Port UsageScenario


DC powersupply port



2 kV (1.2/50 μs)

Commonmode

4 kV (1.2/50 μs)

Surgecurrent

Differentialmode

10 kA

Commonmode

20 kA


Surgecurrent

Differentialmode

8 kA

Commonmode

40 kA


Surge 250 A


Surgecurrent

Differentialmode

3 kA



202

Port UsageScenario


Commonmode

5 kA

RET antennaport


Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA



Surgecurrent

Differentialmode

3 kA

Commonmode

5 kA


Applicableto thescenariowhere thepowersupplymodule andthe RRU areinstalledback toback or thescenariowhere thedistancebetweenthem isshorter than1 m

Surge 250 A

Antenna Capability

Table 10-139 lists the antenna capability of an RRU3926.

Table 10-139 Antenna capability of an RRU3926

Type TMA Support Supported RET Antennas





203

Documents

Huawei BTS 3900 Technical description