Huawei Airbridge cBTS3612-1900 User manual

HUAWEI
Airbridge cBTS3612 CDMA Base Station
User Manual
System Description

HUAWEI
Airbridge cBTS3612 CDMA Base Station
User Manual
Local Maintenance Terminal

HUAWEI
Airbridge cBTS3612 CDMA Base Station
User Manual
BTS Maintenance

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Airbridge cBTS3612 CDMA Base Station
User Manual
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HUAWEI
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Ver: T2-030160-
20030125-C-1.21
BOM: 31013260
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pt

Huawei Technologies Co., Ltd.
Administration Building, Huawei Technologies
Co., Ltd., Bantian, Longgang District,
Shenzhen, P. R. China
Postal Code: 518129
Website: http://www.huawei.com
BOM: 31013260

Airbridge cBTS3612 CDMA Base Station User Manual Airbridge cBTS3612 CDMA Base Station User Manual Airbridge cBTS3612 CDMA Base Station User Manual Airbridge cBTS3612 CDMA Base Station User Manual
15.7cm
Huawei Technologies Co., Ltd.
Huawei Technologies Co., Ltd.
Huawei Technologies Co., Ltd.
Huawei Technologies Co., Ltd.
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1. 16K Cover for hectograph; Font: Arial 22 pt; Product name: Bold
Airbridge cBTS3612
CDMA Base Station
User Manual

HUAWEI
1. System Description
2. Local Maintenance Terminal
3. BTS Maintenance
Airbridge cBTS3612 CDMA Base Station
User Manual
V100R002

Airbridge cBTS3612 CDMA Base Station
User Manual
Manual Version T2-030160-20030125-C-1.21
Product Version V100R002
BOM 31013260
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support
and service. Please feel free to contact our local office, customer care center or company
headquarters.
Huawei Technologies Co., Ltd.
Address: Administration Building, Huawei Technologies Co., Ltd.,
Bantian, Longgang District, Shenzhen, P. R. China
Postal Code: 518129
Website: http://www.huawei.com
Email: [email protected]

© 2003 Huawei Technologies Co., Ltd.
All Rights Reserved
No part of this document may be reproduced or transmitted in any form or by any
means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks
, HUAWEI, C&C08, EAST8000, HONET, , ViewPoint, INtess, ETS, DMC,
TELLIN, InfoLink, Netkey, Quidway, SYNLOCK, Radium, M900/M1800,
TELESIGHT, Quidview, Musa, Airbridge, Tellwin, Inmedia, VRP, DOPRA, iTELLIN,
HUAWEI OptiX, C&C08iNET, NETENGINE, OptiX, SoftX, iSite, U-SYS, iMUSE,
OpenEye, Lansway, SmartAX are trademarks of Huawei Technologies Co., Ltd.
Notice
The information in this document is subject to change without notice. Every effort
has been made in the preparation of this document to ensure accuracy of the
contents, but all statements, information, and recommendations in this document
don't constitute the warranty of any kind, express or implied.

About This Manual
Version
The product version corresponds to the manual is Airbridge cBTS3612 CDMA Base
Station V100R002.
Contents
This User Manual gives asystematic introduction on the technical principles, structures
and maintenance methods of Airbridge cBTS3612 CDMA Base Station (cBTS3612
hereafter).
It is divided into three modules:
zModule 1 System Description
This module introduces the technical principles, software and hardware structures,
functions, networking configurations and performance indices of cBTS3612.
zModule 2 Local Maintenance Terminal
This module introduces how to use the cBTS3612 local maintenance terminal. First is
the guide to the local maintenance terminal, second is the detailed introduction of the
local commands, including configuration commands and maintenance commands.
zModule 3 BTS Maintenance
This module introduces how to maintain the cBTS3612 BTS, including routine
maintenance instructions, fault analysis and location, component replacement and
component description.
Target Readers
The manual is intended for the following readers:
zInstallation engineers & technicians
zOperation & maintenance personnel

Conventions
This document uses the following conventions:
I. General conventions
Convention Description
Arial Normal paragraphs are in Arial.
Arial Narrow Warnings, cautions, notes and tips are in Arial Narrow.
Terminal Display
Terminal Display is in Courier New; message input by the user
via the terminal is in boldface.
II. Command conventions
Convention Description
boldface font Command keywords (which must be input unchanged) are in boldface.
italic font Command arguments for which you supply values are in italics.
[ ] Elements in square brackets [ ] are optional.
{ x | y | ... }
Alternative keywords are grouped in braces and separated by vertical bars. One is
selected.
[ x | y | ... ]
Optional alternative keywords are grouped in square brackets and separated by
vertical bars. One (or none) is selected.
{ x | y | ... } *
Alternative keywords are grouped in braces and separated by vertical bars. A
minimum of one and maximum of all can be selected.
[ x | y | ... ] *
Optional alternative keywords are grouped in square brackets and separated by
vertical bars. Many (or none) are selected.
! A line starting with an exclamation mark is comments.
III. GUI conventions
Convention Description
< > Message entered via the terminal is within angle brackets.
[ ] MMIs, menu items, data table and field names are inside square brackets [ ].
/ Multi-level menus are separated by forward slashes (/). Menu items are in
boldface. For example, [File/Create/Folder].

IV. Keyboard operation
Format Description
<Key> Press the key with key name expressed with a pointed bracket, e.g.
<Enter>, <Tab>, <Backspace>, or<A>.
<Key1+Key2> Pressthekeysconcurrently;e.g.<Ctrl+Alt+A>meansthethreekeysshould
be pressed concurrently.
<Key1, Key2> Press the keys in turn, e.g. <Alt, A>means the two keys should be pressed
in turn.
[Menu Option] The item with a square bracket indicates the menu option, e.g. [System]
option on the main menu. The item with a pointed bracket indicates the
functional button option, e.g. <OK> button on some interface.
[Menu1/Menu2/Menu3] Multi-level menu options, e.g. [System/Option/Color setup] on the main
menu indicates [Color Setup] on the menu option of [Option], which is on
the menu option of [System].
V. Mouse operation
Action Description
Click Press the left button or right button quickly (left button by default).
Double Click Press the left button twice continuously and quickly.
Drag Press and hold the left button and drag it to a certain position.
VI. Symbols
Eye-catching symbols are also used in this document to highlight the points worthy of
special attention during the operation. They are defined as follows:
Caution,Warning, Danger: Means reader be extremely careful during the operation.
Note Comment, Tip,Knowhow,Thought: Means a complementary description.

User Manual
Airbridge cBTS3612 CDMA Base Station System Description Table of Contents
i
Table of Contents
1System Overview ..............................................................................................................1-1
1.1 Brief Introduction.......................................................................................................1-1
1.2 System Features .......................................................................................................1-3
1.2.1 Advanced Technology and Excellent Performance............................................1-3
1.2.2 Protecting User Investment..............................................................................1-4
1.2.3 Convenient Operation and Maintenance...........................................................1-4
1.2.4 Flexible Networking Mode................................................................................1-5
1.2.5 Reliable Power Supply System ........................................................................1-5
1.2.6 Multi-band supported.......................................................................................1-6
1.3 Technical Index.........................................................................................................1-6
1.4 External Interface......................................................................................................1-9
1.4.1 Overview.........................................................................................................1-9
1.4.2 Um Interface .................................................................................................1-10
1.4.3 Abis Interface................................................................................................1-14
1.4.4 OML Interface...............................................................................................1-18
1.4.5 LMF Interface................................................................................................1-18
1.4.6 System Synchronization Interface..................................................................1-18
1.4.7 BTS Test Interface ........................................................................................1-18
1.4.8 Remote Maintenance Serial Port....................................................................1-19
1.4.9 Environment Alarm Interface..........................................................................1-19
1.5 Reliability Design ....................................................................................................1-19
1.5.1 Hardware Reliability Design ...........................................................................1-20
1.5.2 Software Reliability Measures ........................................................................1-23
2Hardware Architecture ......................................................................................................2-1
2.1 Overview ..................................................................................................................2-1
2.2 Baseband Subsystem................................................................................................2-5
2.2.1 Overview.........................................................................................................2-5
2.2.2 Control & Clock Module (BCKM)......................................................................2-7
2.2.3 Control Interface Module (BCIM)....................................................................2-10
2.2.4 Channel Processing Module (BCPM) .............................................................2-12
2.2.5 Resource Distribution Module (BRDM) ...........................................................2-14
2.2.6 Baseband Backplane Module (CBKM)............................................................2-17
2.2.7 E1 Surge Protector (BESP)............................................................................2-19
2.2.8 Fan Module (BFAN).......................................................................................2-20
2.3 RF Subsystem ........................................................................................................2-24
2.3.1 Overview.......................................................................................................2-24
2.3.2 BTS Transceiver Module (BTRM)...................................................................2-25

User Manual
Airbridge cBTS3612 CDMA Base Station System Description Table of Contents
ii
2.3.3 BTS High Power Amplifier Module (BHPA).....................................................2-28
2.3.4 BTS Transceiver Backplane Module (BTBM) ..................................................2-30
2.3.5 Combining Duplexer Unit (CDU).....................................................................2-31
2.3.6 Duplexer Filter Unit (DFU) .............................................................................2-33
2.3.7 Dual Duplexer Unit (DDU)..............................................................................2-35
2.3.8 Receive LNA Distribution Unit (RLDU)............................................................2-37
2.3.9 BTS RF Fan Module (BRFM).........................................................................2-39
2.4 Antenna & Feeder Subsystem .................................................................................2-43
2.4.1 Overview.......................................................................................................2-43
2.4.2 RF Antenna & Feeder....................................................................................2-43
2.4.3 Dual-Satellite Synchronization Antenna & Feeder ...........................................2-47
2.5 Power Supply Subsystem........................................................................................2-50
2.5.1 Overview.......................................................................................................2-50
2.5.2 General Structure..........................................................................................2-51
2.5.3 Technical Indices..........................................................................................2-51
2.5.4 Power Supply Monitoring ...............................................................................2-54
2.5.5 BTS Direct Current Switchbox (BDCS)...........................................................2-55
2.6 Environment Monitoring...........................................................................................2-55
2.6.1 Alarm Box Input.............................................................................................2-56
2.6.2 Alarm Indicator..............................................................................................2-56
2.6.3 Interface for Actuators ...................................................................................2-57
2.6.4 Communication.............................................................................................2-57
2.7 Lightning Protection System ....................................................................................2-57
2.7.1 Overview.......................................................................................................2-57
2.7.2 Lightning Protection for DC............................................................................2-59
2.7.3 Lightning Protection for Trunk Line.................................................................2-60
2.7.4 Lightning Protection for Antenna & Feeder Port ..............................................2-62
3Software Architecture .......................................................................................................3-1
3.1 Overall Architecture...................................................................................................3-1
3.2 Module Description ...................................................................................................3-2
3.2.1 Main Control Software.....................................................................................3-2
3.2.2 O&M Software.................................................................................................3-4
3.2.3 Clock Software................................................................................................3-6
3.2.4 BCIM Software................................................................................................3-7
3.2.5 BCPM Software...............................................................................................3-8
3.2.6 BRDM Software ..............................................................................................3-9
3.2.7 BTRM Software.............................................................................................3-10
4System Function ...............................................................................................................4-1
4.1 Transmission Networking ..........................................................................................4-1
4.2 Call Procedure..........................................................................................................4-3
4.2.1 Speech Service Call Procedure........................................................................4-3
4.2.2 Data Service Call Procedure............................................................................4-6

User Manual
Airbridge cBTS3612 CDMA Base Station System Description Table of Contents
iii
4.3 Signaling Processing.................................................................................................4-9
4.4 Baseband Processing..............................................................................................4-11
4.5 RF Functions ..........................................................................................................4-13
4.5.1 Power Control ...............................................................................................4-13
4.5.2 Handoff.........................................................................................................4-15
4.5.3 Flexible Configuration....................................................................................4-15
4.5.4 Radio Configuration and Channel Support......................................................4-16
4.5.5 Easy Installation and Operation......................................................................4-21
4.5.6 Diversity Receiving........................................................................................4-21
4.5.7 Cell Breath....................................................................................................4-22
4.6 Operation and Maintenance.....................................................................................4-22
4.6.1 Software Loading ..........................................................................................4-22
4.6.2 Interface Management...................................................................................4-23
4.6.3 Test Management .........................................................................................4-24
4.6.4 Status Management ......................................................................................4-24
4.6.5 Event Reporting and Processing ....................................................................4-25
4.6.6 Equipment Management ................................................................................4-26
4.6.7 Site Configuration..........................................................................................4-28
4.6.8 Operation Status Tracing...............................................................................4-29
4.6.9 Other Functions.............................................................................................4-29
5System Configuration .......................................................................................................5-1
5.1 Overview ..................................................................................................................5-1
5.1.1 Basic/Extended Cabinet Configuration .............................................................5-1
5.1.2 Baseband Subrack Configuration.....................................................................5-4
5.1.3 Power Supply Subrack Configuration ...............................................................5-6
5.1.4 RF Modules Configuration ...............................................................................5-6
5.1.5 Configuration of Antenna Parts ........................................................................5-7
5.2 Typical Configurations ...............................................................................................5-8
5.2.1 Typical Configuration of cBTS3612 for 450MHz Band .......................................5-8
5.2.2 Typical Configuration of cBTS3612 for 800MHz Band .....................................5-14
5.2.3 Typical Configuration of cBTS3612 in 1900MHz Band.....................................5-21
Appendix A Technical Performance of Receiver and Transmitter ..................................... A-1
A.1 Performance of Receiver...........................................................................................A-1
A.1.1 Frequency Coverage.......................................................................................A-1
A.1.2 Access Probe Acquisition ................................................................................A-1
A.1.3 R-TCH Demodulation Performance..................................................................A-1
A.1.4 Receiving Performance...................................................................................A-9
A.1.5 Limitations on Emissions ...............................................................................A-10
A.1.6 Received Signal Quality Indicator (RSQI).......................................................A-11
A.2 Performance of Transmitter.....................................................................................A-11
A.2.1Frequency Requirements ..............................................................................A-11
A.2.2 Modulation Requirements..............................................................................A-12

User Manual
Airbridge cBTS3612 CDMA Base Station System Description Table of Contents
iv
A.2.3 RF Output Power Requirement ......................................................................A-12
A.2.4 Limitations on Emissions ...............................................................................A-13
Appendix B EMC Performance ........................................................................................... B-1
B.1 EMI Performance......................................................................................................B-1
B.2 EMS Performance....................................................................................................B-2
Appendix C Environment Performance .............................................................................. C-1
C.1 Ambient Temperature and Humidity.......................................................................... C-1
C.2 Cleanness............................................................................................................... C-1
C.3 Illumination.............................................................................................................. C-2
C.4 Atmospheric Condition............................................................................................. C-2
Appendix D Electromagnetic Radiation.............................................................................. D-1
D.1 Introduction............................................................................................................. D-1
D.2 Maximum Permissible Exposure (MPE).................................................................... D-1
D.3 Estimation of Exposure to Electromagnetic Fields ..................................................... D-3
D.4 Calculation of Safe Distance .................................................................................... D-3
D.5 Location of Base Station Antennas ........................................................................... D-4
D.5.1 Exclusion Zones ............................................................................................ D-4
D.5.2 Guidelines on Arranging Antenna Locations.................................................... D-4
Appendix E Standard Compliance.......................................................................................E-1
E.1 Um Interface.............................................................................................................E-1
E.2 Abis Interface ...........................................................................................................E-1
E.3Lightning Protection..................................................................................................E-2
E.4 Safety ......................................................................................................................E-3
E.5 EMC.........................................................................................................................E-3
Appendix F Abbreviation .....................................................................................................F-1

User Manual
Airbridge cBTS3612 CDMA Base Station System Description 1 System Overview
1-1
1 System Overview
This chapter firstly presents an outline of the cBTS3612 base station system, and
then briefs the system features, technical indices and external interfaces, followed
by an introduction to the system reliability design in aspects of hardware and
software.
1.1 Brief Introduction
The cdma2000 1X mobile communication system comprises the Base Station
Subsystem (BSS) and the Core Network (CN). The BSS comprises the Base
Transceiver Station (BTS), Base Station Controller (BSC) and Packet Control
Function (PCF), while the CN comprises the packet domain network and circuit
domain network. The equipment of packet domain interworks with Internet, and that
of the circuit domain interworks with the conventional PLMN and PSTN/ISDN. The
system's operation and maintenance is implemented via the integrated mobile
network management system (iManager M2000).
The position of BTS in CDMA system is as shown in Figure 1-1.
Internet
PSTN/ISDN
PLMN
A3/A7
A1/A2
A10/A11
Abis
A1/A2
MS
Mobile Network
Management System
SoftSite
BSC/PCF
BSC/PCF
BTS
BTS
BTS
MS
MS
BTS
SoftSite
PacketDomain
NetworkEquipment
CircuitDomain
Network
Equipment
A10/A11
SoftSite
Abis
BTS SDH
BTS
MS:Mobile Station BTS: Base Transceiver Station
BSC: Base Station Controller ISDN: Integrated Service Data Network
PLMN: Public Land Mobile Network PSTN: Public Switched Telephone Network
PCF: Packet Control Function Softsite: Soft Site
BSS: Base Station Subsystem CN:Core Network
Figure 1-1Network structure of cdma2000 1X mobile communication system

User Manual
Airbridge cBTS3612 CDMA Base Station System Description 1 System Overview
1-2
cBTS3612 is located between the Base Station Controller (BSC) and the Mobile
Station (MS) in the cdma2000 1X mobile communication system.
Under the control of the BSC, the cBTS3612 serves as the wireless transceiving
equipment of one cell or multiple logical sectors. Connecting to BSC via the Abis
interface, it assists the BSC on the radio resource management, radio parameter
management and interface management. It also implements, via the Um interface,
the radio transmission between the BTS and the MS, as well as related control
functions.
cBTS3612 cabinet is shown in Figure 1-2.
RF subrack
CDU/RLDU subrack
Fan subrack
Baseband subrack
RF subrack
Power subrack
Figure 1-2cBTS3612 cabinet
cBTS3612 has the following functions:
I. Interface function
lUm interfacesupports IS2000 Release A. It is fully compatible with IS-95A/B.
lThe physical layer supports a rate as high as 307.2kbit/s.
lHard handoff, soft handoff and softer handoff are supported.
lQuick forward power control, slow forward power control, quick reverse power
control and reverse open-loop power control are available.

User Manual
Airbridge cBTS3612 CDMA Base Station System Description 1 System Overview
1-3
lSupport omni-cell, directional 3 sectors and 6 sectors configurations.
lAbis interface supports E1/T1 trunk mode and optical fiber transmission mode
(optical fiber transmission mode will be available in the coming version).E1/T1
trunk mode supports as many as 16 E1/T1 trunk lines and optical fiber
transmission mode will support 2 pairs of STM-1 optical fibers.
lChain, star and tree networking modes are supported.
lSoftsite (ODU3601C) can be extended afar via optical fibers.
II. Basic functions of operation and maintenance
lSoftware downloading
lAbis interface management
lAir interface (Um) management
lTest management
lStatus management
lEvent report handling
lEquipment management
lDataconfiguration management
lBTS operation tracing
lTelnet logon
1.2 System Features
cBTS3612 features large capacity, high integration and low power consumption.
One cabinet can accommodate as many as 12 sector carriers. It can satisfy the
customer's demands on capacity, configuration, installation, power supply,
transmission and service. It's a typical "All In One" BTS. Its features are highlighted
as follows:
1.2.1 Advanced Technology and Excellent Performance
cBTS3612 integrates the following technologies to improve its performances:
lBased on well-developed Huawei ATM platform and cell switching & broadband
processing technology, standard interface and open application is enabled.
lDesigned with the resource pool concept, which helps increase the availability
of hardware resources and the system's fault-tolerance.
lEquipped with the digital intermediate frequency technology to enhance
wireless signal transmitting and receiving capability.
lDesigned with the technology of diversity receiving to improve the radio signal
receiving performance.
lSupporting remote installation of the SoftSite via optical fibers, thus making
networking more flexible.