System Description of BTS3012 II

7/30/2019 System Description of BTS3012 II

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Product Description

BTS3012 IIV300R008

Issue 01

Date 2007-06-15

HUAWEI TECHNOLOGIES CO., LTD.


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Issue 01 (2007-06-15) Commercial in Confidence Page 2 of 38

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service.

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Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

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Website: http://www.huawei.com

Email: [email protected]

Copyright Huawei Technologies Co., Ltd. 2007. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior

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and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

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Notice

The information in this document is subject to change without notice. Every effort has been made in the

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About This Document

Author

Prepared by Li haixia Date 2007-06-11

Reviewed by Feng baoshun, Yao

guoqiang,Xu kai, Jiangpingping, Wu menghan, Linmudan

Date 2007-06-13

Approved by Feng baoshun Date 2007-06-15

Summary

This document consists of seven chapters and two appendixes. It is organized asfollows:

Chapter Description

1 Introduction toBTS3012 II

This chapter briefly introduces the orientation ofBTS3012 II in the network.

2 Key Benefits of theBTS3012 II

This chapter introduces the main features of BTS3012II.

3 System Architecture This chapter introduces the configuration and physicalarchitecture of BTS3012 II.

4 Services and Features This chapter introduces the main services andfunctions of BTS3012 II.

5 Operation andMaintenance

This chapter introduces the operation andmaintenance function of BTS3012 II.

6 Reliability This chapter introduces the measures taken inreliability design of BTS3012 II from the aspects ofsystem, hardware and software.

7 TechnicalSpecifications

This chapter lists the main performance indices andengineering parameters of BTS3012 II.


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Chapter Description

A TechnicalSpecifications

This chapter lists the technical specifications that theBTS3012 II conforms to.

B Acronyms andAbbreviations

This chapter describes the acronyms andabbreviations of this manual.


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History

Issue Details Date Author Approved by

01 Creation 2007-06-15 Li haixia Fengbaoshun


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Contents

1 Introduction to BTS3012 II ............................................................................................. 9

1.1 Position of the BTS3012 II in the GSM Network .............................................................................. 9

1.2 Features of the BTS3012 II ............................................................................................................ 10

2 Key Benefits of the BTS3012 II .................................................................................... 11

2.1 Coverage Capability ........................................................................................................................ 11

2.2 Capacity .......................................................................................................................................... 11

2.3 Networking Capability...................................................................................................................... 11

2.4 Clock and Synchronization ............................................................................................................. 12

2.5 Hybrid Combined Cabinet .............................................................................................................. 12

2.6 Antenna .......................................................................................................................................... 12

2.7 Power Supply ................................................................................................................................. 12

2.8 Installation ...................................................................................................................................... 12

2.9 Multiple Frequency Bands Applications ......................................................................................... 13

3 System Architecture ..................................................................................................... 14

3.1 Physical Architecture ...................................................................................................................... 14

3.2 Functional Architecture ................................................................................................................... 17

3.2.1 Common Subsystem ............................................................................................................. 18

3.2.2 Double-Transceiver Subsystem ............................................................................................ 19

3.2.3 RF Subsystem ....................................................................................................................... 20

3.3 System Configuration ..................................................................................................................... 21

4 Services and Features .................................................................................................. 22

4.1 Services .......................................................................................................................................... 22

4.2 Features ......................................................................................................................................... 22

5 Operation and Maintenance ......................................................................................... 245.1 O&M Subsystem ............................................................................................................................ 24

5.1.1 Overview of the O&M Subsystem ......................................................................................... 24

5.1.2 Terminal Maintenance ........................................................................................................... 24

5.1.3 Remote Maintenance ............................................................................................................ 24

5.2 O&M Functions ............................................................................................................................... 25

5.2.1 Security Management............................................................................................................ 25

5.2.2 Alarm Management ............................................................................................................... 25

5.2.3 Data Configuration ................................................................................................................. 25

5.2.4 Maintenance Management .................................................................................................... 25


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6 Reliability ....................................................................................................................... 26

6.1 System Reliability ........................................................................................................................... 26

6.2 Hardware Reliability ....................................................................................................................... 26

6.3 Software Reliability ......................................................................................................................... 27

7 Technical Specifications .............................................................................................. 29

7.1 Radio Specifications ....................................................................................................................... 29

7.1.1 Working Frequency Bands .................................................................................................... 29

7.1.2 Transmit Specifications .......................................................................................................... 29

7.1.3 Receive Specifications........................................................................................................... 30

7.2 Engineering Specifications ............................................................................................................. 30

7.2.1 Dimensions ............................................................................................................................ 30

7.2.2 Weight .................................................................................................................................... 30

7.2.3 Power Supply ........................................................................................................................ 31

7.2.4 Power Consumption .............................................................................................................. 31

7.2.5 Transmission ......................................................................................................................... 31

7.2.6 Operation Environment.......................................................................................................... 32

7.2.7 EMC ....................................................................................................................................... 33

7.2.8 Acoustic Noise ....................................................................................................................... 33

7.2.9 Storage Environment ............................................................................................................. 33

7.2.10 Transportation Environment ................................................................................................ 33

A Technical Specifications .............................................................................................. 34

ITU and ETSI Standards ...................................................................................................................... 34A.2 Abis Interface and Um Interface Specifications ............................................................................. 35

A.3 Environment Adaptability Specifications ........................................................................................ 35

A.4 EMC Specifications ........................................................................................................................ 36

A.5 Lightning Protection Specifications ................................................................................................ 36

A.6 Safety Standard ............................................................................................................................. 36

B Acronyms and Abbreviations ...................................................................................... 37


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1 Introduction to BTS3012 II1.1 Position of the BTS3012 II in the GSM Network

Huawei double-transceiver Base Transceiver Station (BTS) family providescustomized solutions for the GSM radio access network based on differentrequirements and network environments.

Figure 1-1 shows the position of the BTS3012 II in the GSM network.

Figure 1-1 Position of the BTS3012 II in the GSM network

BSC

BSC/PCU

GSM NSS

BSS

MS

BTS3012AE

BTS3006C

BTS3002E

BTS3012AE

BTS3012

BTS3006C

BTS3002E

BTS3012

MS

MS

MSC

Table 1-1 lists the application scenarios of the double-transceiver BTS family.


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Table 1-1Application scenarios of the double-transceiver BTS family

Model MaximumNumber ofTRXs per

Cabinet

Application Scenario

BTS3012 II 18 Used in highly populated areas with high trafficvolume or in the areas where wide coverage isrequired

BTS3012AE 12 Used in cities, suburbs, and rural areas wherehigh traffic volume and wide coverage arerequired, or in the areas where the site for anequipment room is hard to find or theconstruction cost of an equipment room is toohigh

BTS3006C 6 Used in cities and suburbs where medium trafficvolume and wide coverage are required

BTS3002E 2 Used in indoor coverage, towns and suburbswhere low traffic volume and wide outdoorcoverage are required

1.2 Features of the BTS3012 II

As a new type of GSM indoor macro-BTS, the Huawei BTS3012 II has strongcoverage capabilities.

Using Double-Transceiver units (DTRUs), a single BTS3012 II cabinet supports theS6/6/6 configuration. A single fully configured cabinet holds a maximum of 18 carriers.

A BTS3012 II cabinet provides 1 U transmission space, in which a 3G BBU can beinserted. The BTS3012 II and the BBU can form a dual-mode BTS. The BTS3012 II isintelligently designed with low power consumption, thus saving the operationexpenditure. The BTS3012 II can form a hybrid network with the BTS312.

It can smoothly evolve into the GSM/EDGE Radio Access Network (GERAN).


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2 Key Benefits of the BTS3012 II2.1 Coverage Capability

The BTS3012 II has the following benefits in terms of coverage:

High receive sensitivity

The static sensitivity of the TCH/FS channel is 112.5 dBm (a typical value innormal temperature)

Power boost technology (PBT)

The maximum transmit power of the DTRU can reach 100 W.

Hybrid networking of multiple frequency bands is supported.

Transmit diversity and 4-way receive diversity

2.2 Capacity

The BTS3012 II has the following benefits in terms of capacity:

One BTS3012 II cabinet holds a maximum of 9 DTRUs (18 TRXs).

The BTS3012 II supports combined cabinets and cabinet groups. It supports themaximum site configuration of S24/24/24.

Each BTS3012 II holds 1 to 72 TRXs.

2.3 Networking CapabilityThe BTS3012 II has the following benefits in terms of networking capability:

Supporting multiple transmission modes such as E1/T1, STM-1, FE, microwave,and satellite transmission.

Supporting multiple topologies such as star, tree, chain, ring, and hybridtopologies.

Supporting the Flex Abis networking mode.


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2.4 Clock and Synchronization

The BTS3012 II has the following features in terms of clock and synchronization:

The BTS3012 II clock has four modes: fast pull-in, locked, holdover, and free run.

The Transmission, Timing, and Management Unit for DTRU (DTMU) of theBTS3012 II uses the active/standby mode, which greatly improves the reliabilityof the clock.

The BTS3012 II can process the inputs of external BITS clock.

2.5 Hybrid Combined Cabinet

The BTS3012 II can form a combined cabinet with the BTS30 or BTS312.

2.6 Antenna

The BTS3012 II has the following benefits in terms of antenna:

Supporting Remote Electric Tilt (RET) antennas.

Supporting dual polarization antennas

This reduces the number of antennas in a cell.

Supporting Tower-Mounted Amplifiers (TMAs)

This improves the receive sensitivity.

2.7 Power Supply

The BTS3012 II uses the 48 V DC power supply. It supports the 110/220 V AC powerinput through the Sidepower, which is the external power supply equipment.

2.8 Installation

The installation of the BTS3012 II has the following features:

The BTS3012 II supports installation against the wall. The BTS3012 II supports combined cabinet installation.

The external cables are led from the top of the cabinet.

All the cables are maintained from the front of the cabinet.

Easy and fast installation of the BTS3012 II software and hardware leads to muchfaster installation and network deployment.

The field installation personnel need to fix the cabinet, insert the boards, install theexternal cables, and download the data configuration files.


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3 System Architecture3.1 Physical Architecture

The design of the BTS3012 II cabinet complies with the IEC60297standard. Thedimensions of the BTS3012 II cabinet are as follows:

Height: 1600 mm

Width: 600 mm

Depth: 450 mm

Figure 3-1 shows the BTS3012 II cabinet.


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Figure 3-1 Front view of the BTS3012 II cabinet

Error! Reference source not found. shows a single cabinet in full configuration.


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Figure 3-2 Single BTS3012 II cabinet in full configuration

Wiring

D

TRU

D

TRU

D

TRU

D

TRU

D

TRU

Wiring

FAN

Air Inlet

Transmission Unit

5

3

2

4

6

1

1

9U

2U

9U

1U

2U

9U

2U

8 7910

11Power

and EMC

D

TRU

D

TRU

D

TRU

D

TRU

Wiring

Air Inlet

Wiring

D

TMU

D

TMU

D

EMU

D

CSU

D

CCU

DAF

U

DAF

U

DAF

U

DAF

U

DAF

U

DAF

U

4

(1) BBU/transmission subrack (2) Common subrack (3) Fan subrack

(4) DTRU subrack (5) DAFU subrack (6) Power distribution box

(7) DSAC (8) DELC0 (9) DELC1

(10) DMLC/DELC2 (11) Cabinet top subrack -

The DFCU has the same functions as the DDPU and the DCOM, so you can chooseeither of the following schemes for the DAFU subrack of the BTS3012 II:

DDPU and DCOM

DFCU

Table 3-1 lists the boards and modules in the BTS3012 II.


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Table 3-1 Boards and modules

Board and Module Full Spelling

DTRU Double-Transceiver Unit

DTMUTransmission & Timing & Management Unit for DTRUBTS

DCCU Cable Connection Unit for DTRU BTS

DCSU Combined Cabinet Signal Connection Unit for DTRU BTS

DEMU Environment Monitoring Unit for DTRU BTS

DAFU Antenna Front-end Unit for DTRU BTS

DDPU Dual-Duplexer Unit for DTRU BTS

DCOM Combining Unit for DTRU BTS

DFCU Filter Combiner Unit for DTRU BTS

DATU Antenna and TMA Control Unit for DTRU BTS

DMLC Monitor Signal Lightning-Protection Card for DTRU BTS

DELC E1 Signal Lightning-Protection Card for DTRU BTS

DSAC Signal Access Card for DTRU BTS

3.2 Functional ArchitectureThe functional architecture of the BTS3012 II is as shown in Figure 3-3.


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Figure 3-3 Functional architecture of the BTS3012 II

TMA TMA

DTRU DAFU

TMA TMA

DTRU DAFU

TMA TMA

DTRU DAFU

DATU

Slave/groupcabinet

MS

Um

DATU

Fiber

E1

Abis

NFCB

Optical transmission

equipment (optional)

DTMU

DEMU

E1

BITSMonitor

Protection

forsignal

Common subsystem Double-transceiver

subsystem

RF front-end

subsystem

Antennasubsystem

Electric tilt antenna

Electric tilt antenna& TMA feed

& TMA feed

A BTS3012 II is composed of the common subsystem, double-transceiver subsystem,and RF subsystem.

3.2.1 Common Subsystem

The common subsystem consists of the BTS common subsystem and cabinet topaccess subsystem.

The BTS common subsystem performs the following functions:

Managing and controlling other subsystem and modules.

Importing E1 signals.

Collecting and monitoring the environment alarm.

Providing clock for the BTS.

Controlling the Remote Electric Tilt (RET), and transmitting the signals from theTMA to the BTS through the feeder cable.

The cabinet top access subsystem performs the following functions:

Protecting the E1 signal from lightning.

Protecting the monitor signal from lightning.

Importing the Boolean value, and power supply.

Connecting cabinets to form a combined cabinet or a cabinet group.

Table 3-2 lists the boards in the common subsystem and their functions.


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Table 3-2 Boards in the common subsystem and their functions

CommonSubsystem

Board Functions

BTSCommonsubsystem

DTMU

Uses the active/standby mode. Supports 4-route E1 inputs by default, and 8-route E1

inputs for special requirements.

Provides a 10 Mbit/s Ethernet port for terminalmaintenance.

Supports 8-route Boolean alarm input and 4-routeextended Boolean control signal output.

Supports the external GPS and BITS synchronizationclock input.

DCCU Inputs and outputs signals.

DCSU Forwards the combined cabinet signals and cabinet groupsignals from the common subsystem to the DSCB.

DATU Transmitting the remote electrical tilt unit (RET) controlsignals.

Feeding the TMA.

Reports alarms related to the control of the RETantenna and monitoring of the feed current.

DEMU Monitors the environment.

Cabinet top

accesssubsystem

DMLU Provides lightning protection for the 32-route Boolean

value input and 6-route Boolean value output of the maincontact point, and for the 4-route input of the analogsignal.

DELU One DELC can provide lightning protection for the4-route E1 signal.

There can be a maximum of three DELCs to providelightning protection for 12-route E1 signals.

DSAC Provides the 6-route Boolean value input.

Provides the 2-route 485 serial control bus interface.

Supports the 2-route input of lightning protection

arrester failure alarm. Supports the access protection of BITS clock input.

3.2.2 Double-Transceiver Subsystem

The main functions of the double-transceiver subsystem are as follows:

Baseband signals processing

RF receive/transmit processing

Power amplification


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Transmit diversity and 4-way receive diversity

PBT

Table 3-3 lists the boards in the double-transceiver subsystem and their functions.

Table 3-3 Boards in the double-transceiver subsystem and their functions

Board Functions

DTRU Processes the RF and baseband signals of two carriers.

Processes the baseband frequency hopping and RF hopping.

Supports the enhanced functions such as PBT, transmit diversity, and4-way receive diversity.

3.2.3 RF SubsystemThe RF subsystem comprises:

RF antenna subsystem

DAFU subsystem

RF transceiver subsystem

Table 3-4 lists the components of each part.

Table 3-4 RF subsystem components and their functions

RF

Subsystem

Board or

Module

Function

RF antennasubsystem

Antenna Transmits and receives the signals.

Feeder Connects the antenna to the ANTA or ANTB interfaceof the DAFU.

TMA Amplifies the signals.

Front-end ofthe RFsubsystem(DAFU)

DDPU Sends the multiple channels of the RF signals fromthe transceiver to the antenna through the duplexer.

Amplifies the received signals from the antenna anddivides the signals into four parts and then sends

them to the transceiver.

DCOM Combines the two routes of signals into one route.


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RFSubsystem

Board orModule

Function

DFCU Sends the multiple channels of RF Tx signals fromthe DTRU transmitter to the antenna through theduplexer after combination.

Sends the received signals from the antenna to theduplexer and to the low noise amplifier and dividesthe signals into several routes and then sends themto the receivers of the DTRUs.

Combines the four routes of signals into one route,auto detects the frequencies of the input signals andperforms automatic tuning.

RFtransceiver

subsystem

DTRU(RF)

Transmits signals.

Receives signals.

Combines frequency.

Performs loop test.

Amplifies the power

Outputs the power individually.

Outputs the combination power.

3.3 System ConfigurationThe system configuration of the BTS3012 II is as follows:

One fully configured BTS3012 II cabinet can hold 9 DTRUs (18 TRXs).

When combiners are used, the maximum number of carriers in the cell of a singleantenna is 12.


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4 Services and Features4.1 Services

Table 4-1 lists the services that the BTS3012 II supports.

Table 4-1 BTS3012 II service list

Service Abbreviation Description

Voiceservice

EFR Enhanced full rate voice service

FR Full rate voice service

HR Half rate voice service

AMR Adaptive Multi-Rate

Dataservice

F9.6 9.6 kbit/s full rate data service



FAX Fax service

Packetservice

GPRS CS1/CS2/CS3/CS4 packet service

EDGE MCS1MCS9 EGPRS packet service

4.2 FeaturesThe special features of the BTS3012 II with respect to the following aspects aredescribed here.

EDGE The BTS3012 II supports system information broadcast and resource indication,

which are compatible with the GSM/EDGE R99.

The BTS3012 II supports the GSM/EDGE LAPDm protocol.


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Handover

The BTS3012 II supports synchronous, asynchronous handover.

The BTS3012 II supports dual-band handover.

Frequency Hopping The BTS3012 II supports baseband frequency hopping.

The BTS3012 II supports radio frequency hopping.

The BTS3012 II supports antenna hopping.

The BTS3012 II supports the dynamic MAIO.

Encryption The BTS3012 II has the A5/0 non-encryption function.

The BTS3012 II provides the encryption and decryption functions of A5/1, A5/2,

and A5/3.

Power Control The BTS3012 II can support the static power control of the BTS.

The BTS3012 II can support the dynamic power control of the BTS.

Detection The BTS3012 II can detect the random access collision.

The BTS3012 II can detect whether the main boards and modules are in position.

The BTS3012 II can detect and report the output power of the DTRU module.

Extended Cell

With the extended cell function, the BTS3012 II can cover an area of up to 120 km.


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5 Operation and Maintenance5.1 O&M Subsystem

5.1.1 Overview of the O&M Subsystem

The BTS3012 II provides two maintenance methods:

Terminal maintenance

Remote maintenance

Figure 5-1 shows the topology of the O&M subsystem.

Figure 5-1 Topology of the O&M subsystem

Site Maintenance

Terminal System

MMI

MMI

BTS

BTS

BSC

Abis

Abis

OMCServer

Hub

Remote SiteMaintenance System

Site Maintenance

Terminal System

5.1.2 Terminal Maintenance

As shown in Figure 5-1, terminal maintenance is implemented on the PC. The PC isconnected to the BTS3012 II through the Ethernet cable.

You can operate and maintain sites, cells, and TRXs through the terminalmaintenance.

5.1.3 Remote Maintenance

As shown in Figure 5-1, remote maintenance is implemented through a PC. The PCforms a network with the OMC, BSC, and BTS.


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The remote maintenance uses Graphic User Interface (GUI) and topological view. Youcan see the name, type, location, number, and running status of each NE in the GUIinterface.

You can view the detailed performance data, alarm data, and configuration data of an

NE.

You can also operate or maintain an NE through the topological view.

5.2 O&M Functions

The BTS3012 II O&M system provides powerful O&M functions, which includes:

Security Management

Alarm Management

Data Configuration

Maintenance Management

5.2.1 Security Management

The BTS3012 II authorizes maintenance engineers with hierarchical operation rightsto ensure the security. At the same time, it prompts the possible outcome ofdangerous operations.

5.2.2 Alarm Management

The alarm management function of the BTS3012 II can detect and report equipmentfaults and abnormal functioning in a real time manner.

With this function, the BTS3012 II can collect, clear, query, handle, save, explain,prompt, filter, and analyze alarms.

In addition, the online help and layered alarm filtering function help you to quicklylocate faults and provide fault recovery methods.

5.2.3 Data Configuration

The O&M subsystem of the BTS3012 II allows addition, deletion, modification, andconsistency check of the BTS data. It supports both dynamic and static dataconfigurations.

5.2.4 Maintenance Management

The O&M subsystem of the BTS3012 II provides the following maintenance functions:

Downloading software to boards or modules, or starting and initializing boards ormodules.

Recording the interface tracing messages and running status of the BTS throughlogs.

Implementing in-position tests for the boards.

Testing Abis links of the DTRU, testing channels, and self checking sites, cells,carriers, and boards.

Providing backup management for the active/standby DTMU.


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6 Reliability6.1 System Reliability

The BTS3012 II is designed after overall analysis on system reliability. The BTS3012II uses the following methods to enhance the system reliability:

Active/standby mode

Load sharing

Redundant configuration

Optimized fault detection of boards and system

Optimized fault isolation

Redundancy

The BTS3012 II uses the redundancy design. The key clock bus, control bus, data bus,DTMU modules use 1+1 backup mode. The transceivers mutual aid is also supported.

System Monitoring

The BTS3012 II can automatically detect and diagnose faults in the hardware orsoftware and report them through alarms. It can also detect environmental status andreport abnormalities in time.

6.2 Hardware ReliabilityThe BTS3012 II uses the following methods to enhance hardware reliability:

Prevention against Mistakenly Inserted Boards

Redundancy Design of Fan Box

Protection against Excessive Rise in Temperature of the DTRU

Reliability Design for Power Supply

Excellent Lightning Protection Design


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Prevention against Mistakenly Inserted Boards

When a functional board is inserted into a wrong slot, it cannot get into full contact withthe backplane. This prevents the equipment from being damaged.

Redundancy Design of Fan Box

The fan uses N+1 redundancy backup mode. If a fan is faulty, the other fans run at fullspeed. Under normal temperature, this design can meet the heat dissipationrequirement.

Protection against Excessive Rise in Temperature of the DTRU

When the temperature around the last level power amplifier is too high, the poweramplifier reports the excessive rise in temperature through an alarm, and then entersinto the automatic protection state.

Reliability Design for Power Supply The power supply has the lightning protection function and the protection function

against voltage variation.

The BTS3012 II provides the power failure protection for programs and key data.

The boards provide protection against excessive voltage and current.

The boards provide protection against reverse-polarity connection.

Excellent Lightning Protection Design

The BTS3012 II needs no external lightning protection device. The antenna ports of

the DDPU have the 8KA/40KA lightning protection capability. The lightning protectionof the BTS3012 II is implemented by directly connecting the conductor inside theDDPU antenna ports to the ground.

6.3 Software Reliability

Software reliability is reflected in the powerful capability of error tolerance. The entiresystem will not get corrupted when the software fails. That is, the system hasself-healing capability. Error tolerance of the BTS3012 II is shown in the followingaspects.

Regular Check on Key Resources

Seizure check is conducted on various software resources in the system. The checkmechanism can ensure the release of hung-up resources and the output of the relatedlogs and alarms.

Task Monitoring

When the software is active, the task monitoring function can monitor any possiblefault in the software or hardware. In addition, detected faults can be reported. Taskstatus and system abnormalities can also be monitored.


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Data Check

The system can perform regular or event-driven checks on data consistency, restorethe data consistency selectively or preferably, and output related logs and alarms.

Saving Operation Log Information

The system records user operations within a certain period and saves the recordedinformation to the system operation logs. The operation logs can be used to locateerrors or exceptions because of incorrect operations so that the system can berestored to the normal state.


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7 Technical Specifications7.1 Radio Specifications

7.1.1 Working Frequency Bands

Table 7-1 lists the working frequency bands of the BTS3012 II.

Table 7-1 BTS3012 II working frequency bands

Frequency Band Parameter Specifications

900 MHz Receive band 876915 MHz

Transmit band 921960 MHz

Space between carriers 200 kHz







1900 MHz Receive band 1850

1910 MHz



7.1.2 Transmit Specifications

Table 7-2 lists the nominal output power of the DTRU.


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Table 7-2 Nominal output power of the DTRU

ModulationScheme

Bypass Output Power (with thePBT Function)

Mode 1 Mode 2

GMSK 40W (45.00dBm) 60W (46.78dBm) 100W (50.00dBm)

8PSK 40W (45.00dBm) 40W (45.00dBm) 60W (46.78dBm)

a: GMSK = Gaussian Minimum Shift Keying

b: PSK = Phase Shift Keying

7.1.3 Receive Specifications

Table 7-3 lists the static receive sensitivity of the BTS3012 II.

Table 7-3 BTS3012 II receive sensitivity

ChannelType

Receive Sensitivity

TCH/FS -112.5 dBm (a typical value in normal temperature)

Others Better than the requirements specified in the 3GPP TS 05.05protocols

7.2 Engineering Specifications

7.2.1 Dimensions

Table 7-4 lists the mechanical dimensions of the BTS3012 II.

Table 7-4 Mechanical dimensions of the BTS3012 II

Item Width (mm) Depth (mm) Height (mm)

Cabinet 600 450 1600

Cabinet + cabinet top subrack 600 450 1680

Cabinet + cabinet top subrack +cabinet base

600 450 1750

7.2.2 Weight

Table 7-5 lists the weight of the BTS3012 II.


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Table 7-5 Weight of the BTS3012 II cabinet in different configurations

Cabinet Weight (kg)

Empty cabinet (including the boards in the common subrack) 120

Cabinet in full configuration (S6/6/6) 220

7.2.3 Power Supply

The 48 V DC power supply of the BTS3012 II complies with the requirement in theETS 300 132-2. Table 7-6 lists the standard of the input power supply.

The BTS3012 II cabinet supports 220 V AC input power through the external powercabinet such as the Sidepower.

Table 7-6 Power requirements

Input Power Supply Value

Rated voltage 48 V DC

Input voltage range From40 V DC to 60 V DC

7.2.4 Power Consumption

Table 7-7 lists the power consumption of the BTS3012 II under typical configuration.

Table 7-7 Power consumption under typical configuration

Power Consumption Condition Value

Typical powerconsumption

Normal temperature, 900M 40 W DTRU,S6/6/6 in full configuration, DC powerconsumption in the case of mean trafficvolume (48 V DC power supply)

1300 W

7.2.5 Transmission

Transmission Interfaces

Table 7-8 lists the transmission interfaces of the BTS3012 II.

Table 7-8 BTS3012 II transmission interfaces

Interface Type Quantity Rate Standard

E1 4 pairs 2 Mbit/s ETS 300 420

ITU G.703/G.704


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Interface Type Quantity Rate Standard

STM-1 2 pairs 155 Mbit/s ANSI T1.105-1995

ITU I.432.2 G.703

ITU G.957

T1 4 pairs 1.5 Mbit/s ANSI-G.703/G.704

Other External Interfaces

Table 7-9 lists the other external interfaces of the BTS3012 II.

Table 7-9 Other external interfaces of the BTS3012 II

Interface Type Quantity FunctionClock interface External input

clocks1 It is used to connect the

external clock, such as theBITS, which provides a highprecision clock at 2.048MHz.

Power and groundinginterface

Power supply 1 -

Protectionground

1 -

Power ground 1 -

Monitoring interface External alarminput port

6+32 The DTMU provides 6-routeBoolean value inputs. If theDEMU is configured,additional 32-route Booleanvalue inputs can beprovided.

Externalcontrol outputport

6 The DEMU provides 6-routeBoolean value outputs.

Environment

monitoringcommunication interface

2 It is used to connect the

environment monitoringinstrument (EMI).

Antenna feederinterface

RF signal 12 It is the input interface forthe feeder

7.2.6 Operation Environment

Table 7-10 shows the requirements for the operation environment of the BTS3012 II.


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A Technical SpecificationsITU and ETSI Standards

Huawei-developed BTS is in compliance with GSM recommended phase 2+ of ETSI,as shown below:

GSM 01.02(ETR099):"general description of a GSM Public Land Mobile Network

(PLMN)"

GSM 04.04 (ETS 300 553):"European digital cellular TelecommunicationsSystem (phase 2); layer 1 general requirements"

GSM 04.05 (ETS 300 554):"European digital cellular TelecommunicationsSystem (phase 2); Data Link (DL) layer general aspects"

GSM 04.06 (ETS 300 555):"European digital cellular TelecommunicationsSystem (phase 2); Mobile Station - Base Station System (MS - BSS) interface

Data Link (DL) layer specification"

GSM04.08 (ETS300557):"digital cellular telecommunications system (phase2);mobile radio interface layer 3 specification"

GSM05.01 (ETS300573):"European digital cellular telecommunications system(phase2); physical layer on the radio path general description"

GSM 05.02(ETS 300 574):"multiplexing and multiple access on the radio path"

GSM05.03 (ETS300575):"digital cellular telecommunications system (phase2);channel coding"

GSM05.04 (ETS300576):"European digital cellular telecommunications system(phase2); Modulation"

GSM05.05 (ETS300577):"digital cellular telecommunications system (phase2);radio transmission and reception"

GSM05.08 (ETS300578):"digital cellular telecommunications system (phase2);radio subsystem link control"

GSM05.10 (ETS300579):"digital cellular telecommunications system (phase2);radio subsystem synchronization"

GSM11.10 (ETS300607):"digital cellular telecommunications system (phase2);Mobile Station (MS) conformity specification"

GSM11.11 (ETS300608):"digital cellular telecommunications system (phase2);specification of the Subscriber Identity Module - Mobile Equipment (SIM - ME)interface"


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GSM 08.58(ETS 300 596):"Base Station Controller-Base Transceiver Station(BSC-BTS) interface layer 3 specification"

GSM 08.51 (ETS 300 592):"European digital cellular TelecommunicationsSystem (phase 2); Base Station Controller - Base Transceiver Station (BSC - BTS)

interface general aspects" GSM 08.52 (ETS 300 593):"European digital cellular Telecommunications

System (phase 2); Base Station Controller - Base Transceiver Station (BSC - BTS)interface interface principles"

GSM 08.56 (ETS 300 595):"European digital cellular TelecommunicationsSystem (phase 2); Base Station Controller - Base Transceiver Station (BSC - BTS)interface layer 2 specification"

A.2 Abis Interface and Um Interface Specifications

GSM 08.51 (ETS 300 592):"European digital cellular TelecommunicationsSystem (phase 2); Base Station Controller - Base Transceiver Station (BSC - BTS)interface general aspects"

GSM 08.52 (ETS 300 593):"European digital cellular TelecommunicationsSystem (phase 2); Base Station Controller - Base Transceiver Station (BSC - BTS)interface interface principles"

GSM 08.56 (ETS 300 595):"European digital cellular TelecommunicationsSystem (phase 2); Base Station Controller - Base Transceiver Station (BSC - BTS)interface layer 2 specification"

GSM 04.22 (ETS 300 563):"European digital cellular TelecommunicationsSystem (phase 2); Radio Link Protocol (RLP) for data and telematic services onthe Mobile Station - Base Station System (MS - BSS) interface and the BaseStation System - Mobile-services Switching Centre (BSS - MSC) interface"

A.3 Environment Adaptability Specifications

BTS3012 II Specifications are as follows:

Low temperature working index: IEC 68 2-1.

High temperature working index: IEC 68 2-2.

Temperature cycle operation test: IEC 68 2-14.

Moist heat working index: IEC 68-2-30. Working jiggling index: ETS 300-019-3.

Shockproof index: Adopt earthquake testing method stipulated by the ministry ofposts and telecommunications. Shockproof grade is grade 8~9 earthquakeintensity.

Moldproof index: IDT IEC 68-2-10.

Salt spray proof index: IDT IEC 68-2-11.


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A.4 EMC Specifications ETSI EN 301 489-1 V1.3.1 (2001-07): "Electromagnetic compatibility and Radio

spectrum Matters (ERM); Electro Magnetic Compatibility (EMC) standard for

radio equipment and services; part 1: common technical requirements" ETSI EN 301 489-8 V1.1.1 (2000-09): "Electromagnetic compatibility and Radio

spectrum Matters (ERM); Electro Magnetic Compatibility (EMC) standard forradio equipment and services; part 9: specific conditions for GSM Base Station"

ETS 300 342-3: (1999-10): "Electromagnetic compatibility and Radio spectrumMatters (ERM); Electro Magnetic Compatibility (EMC) for European digitalcellular Telecommunications System (GSM 900 MHz and DCS 1800 MHz); part 3:Base station radio and ancillary equipment and repeaters meeting phase 2 GSMrequirements"

A.5 Lightning Protection Specifications ETS 300-253.

IEC-1312.

ITU-T K.27 (1996) bonding configurations and earthing inside atelecommunication building.

ITU-T K.11 principles of protection against overvoltage and overcurrents.

ITU-T K.46 protection of telecommunication lines using metallic symmetricconductors against lightning induced surges.

ITU-T K.20 resistibility of telecommunications equipment installed in atelecommunications centre to overvoltages and overcurrents.

A.6 Safety Standard EN60950.

IEC60950.


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B Acronyms and AbbreviationsB

BSC Base Station Controller

BSS Base Station System

BTS Base Transceiver Station

D

DAFU Antenna Front-end Unit for DTRU BTS

DATU Antenna and TMA control Card for DTRU BTS

DCCU Cable Connection Unit for DTRU BTS

DCOM Combining unit for DTRU BTS

DCSU Combined cabinet Signal connection Unit for DTRU BTS

DDPU Dual-Duplexer Unit for DTRU BTS

DEMU Environment Monitoring Unit for DTRU BTS

DELC E1 Signal Lightning-Protection Card for DTRU BTS

DMLC Monitor signal Lightning-protection Card for DTRU BTS

DSAC Signal Access Card for DTRU BTS

DTRU Double-Transceiver unit

DTMU Transmission & Timing & Management Unit for DTRU BTS

E

EDGE Enhanced Data rates for GSM Evolution

EFR Enhanced Full Rate

F

FACCH Fast ACCH


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FACCH/F Fast Associated Control Channel/Full rate

FCCH Frequency Correction Channel

G

GERAN GSM/EDGE Radio Access Network

GPRS General Packet Radio Service

I

IEC International Electrotechnical Commission

M

MS Mobile Station

MSC Mobile services Switching Centre, Mobile Switching Centre

O

OMC Operations & Maintenance centre

P

PBT Power Boost Technology

T

TCH Traffic Channel

TCH/FS Full rate Speech TCH

TRX Transceiver unit

Documents

System Description of BTS3012 II