Zte ZXG10-OB06 User manual

ZXG10-OB06
Integrated Outdoor GSM Base Station
Technical Manual
Version 1.0
ZTE CORPORATION
ZTE Plaza, Keji Road South,
Hi-Tech Industrial Park,
Nanshan District, Shenzhen,
P. R. China
518057
Tel: [phone] 800-9830-9830
Fax: [phone]
URL: http://support.zte.com.cn
E-mail: [e-mail]

LEGAL INFORMATION
Copyright © 2005 ZTE CORPORATION.
The contents of this document are protected by copyright laws and international treaties. Any reproduction or distribution of
this document or any portion of this document, in any form by any means, without the prior written consent of ZTE
CORPORATION is prohibited. Additionally, the contents of this document are protected by contractual confidentiality
obligations.
All company, brand and product names are trade or service marks, or registered trade or service marks, of ZTE
CORPORATION or of their respective owners.
This document is provided “as is”, and all express, implied, or statutory warranties, representations or conditions are
disclaimed, including without limitation any implied warranty of merchantability, fitness for a particular purpose, title or non-
infringement. ZTE CORPORATION and its licensors shall not be liable for damages resulting from the use of or reliance on
the information contained herein.
ZTE CORPORATION or its licensors may have current or pending intellectual property rights or applications covering the
subject matter of this document. Except as expressly provided in any written license between ZTE CORPORATION and its
licensee, the user of this document shall not acquire any license to the subject matter herein.
The contents of this document and all policies of ZTE CORPORATION, including without limitation policies related to support
or training are subject to change without notice.
Revision History
Date Revision No. Serial No. Description
03/07/2006 R1.3 sjzl20060069 For Customers - English

ZTE CORPORATION
Values Your Comments & Suggestions!
Your opinion is of great value and will help us improve the quality of our
product documentation and offer better services to our customers.
Please fax to: (86) 755-26772236; or mail to Publications R&D
Department, ZTE CORPORATION, ZTE Plaza, A Wing, Keji Road South,
Hi-Tech Industrial Park, Shenzhen, P. R. China 518057.
Thank you for your cooperation!
Document
Name ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
Product
Version V1.0 Document Revision Number R1.3
Equipment Installation Date
Presentation:
(Introductions, Procedures, Illustrations, Completeness, Level of Detail, Organization,
Appearance)
Good Fair Average Poor Bad N/A
Accessibility:
(Contents, Index, Headings, Numbering, Glossary)
Good Fair Average Poor Bad N/A
Your evaluation
of this
documentation
Intelligibility:
(Language, Vocabulary, Readability & Clarity, Technical Accuracy, Content)
Good Fair Average Poor Bad N/A
Your
suggestions for
improvement
of this
documentation
Please check the suggestions which you feel can improve this documentation:
Improve the overview/introduction Make it more concise/brief
Improve the Contents Add more step-by-step procedures/tutorials
Improve the organization Add more troubleshooting information
Include more figures Make it less technical Add more examples
Add more/better quick reference aids Add more detail Improve the index
Other suggestions
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
# Please feel free to write any comments on an attached sheet.
If you wish to be contacted regarding your comments, please complete the following:
Name Company
Postcode Address
Telephone E-mail

This page is intentionally blank.

Contents
About this Manual .....................................................................................ix
Purpose of this Manual ........................................................................................... ix
What is in this Manual ............................................................................................. x
Typographical Conventions ...................................................................................... x
Mouse Operation Conventions................................................................................. xi
Safety Signs.......................................................................................................... xi
How to Get in Touch ..............................................................................................xii
Customer Support ..................................................................................................................xii
Documentation Support..........................................................................................................xii
Chapter 1........................................................................................ 1
System Architecture...................................................................................1
System Introduction ............................................................................................... 1
Standards ...............................................................................................................................3
System Features .....................................................................................................................4
System Working Principle ........................................................................................ 7
Hardware Structure ................................................................................................ 9
Control & Maintenance Module (CMM) .................................................................................... 11
Transceiver Module (TRM) .....................................................................................................11
Antenna Equipment Module (AEM) ......................................................................................... 12
Backplane Transmission Module (BTM)...................................................................................15
Transmission Management Module (TMM) .............................................................................. 15
Heat Exchanger (HEX)...........................................................................................................16
Power Module (PWM) ............................................................................................................ 16
Software Architecture............................................................................................ 16
Chapter 2...................................................................................... 23
Technical Specifications.......................................................................... 23
Physical Characteristics ......................................................................................... 23
Voltage and Power................................................................................................ 24
Environmental Characteristics ................................................................................ 24
Requirement for Cleanliness .................................................................................. 25
Lightning Protection and Grounding........................................................................ 26

Interface Specifications ......................................................................................... 26
Abis Interface........................................................................................................................26
Um Interface......................................................................................................................... 28
Capacity .............................................................................................................. 30
Clock ................................................................................................................... 30
Reliability ............................................................................................................. 31
Chapter 3...................................................................................... 33
Interfaces and Protocols......................................................................... 33
Overview ............................................................................................................. 33
Interfaces ............................................................................................................ 34
Um Interface......................................................................................................................... 34
Abis Interface........................................................................................................................35
Inter-Cabinet Cascaded Interface of Same Site....................................................................... 40
Tower Amplifier System Interfaces ......................................................................................... 42
Man-Machine Interface (MMI) ................................................................................................ 42
Protocol Introduction............................................................................................. 43
LAPD Protocol........................................................................................................................43
LAPDm Protocol..................................................................................................................... 46
RR/MM/CM Protocol...............................................................................................................50
Chapter 4...................................................................................... 54
System Functions.................................................................................... 54
Overview ............................................................................................................. 54
Major RF Functions ............................................................................................... 55
High Receiving Sensitivity ......................................................................................................55
Flexible Configuration ............................................................................................................55
Easy O&M .............................................................................................................................55
Diversity Receiving ................................................................................................................55
Frequency Hopping ...............................................................................................................56
Power Control ....................................................................................................................... 56
Baseband Processing ............................................................................................ 56
Signaling Processing ............................................................................................. 57
Wireless Link Management Function....................................................................................... 57
Dedicated Channel Management Function .............................................................................. 64
Common Channel Management Function ............................................................................... 81
TRX Management Function .................................................................................................... 88
O&M.................................................................................................................... 92
Parameter Configuration ........................................................................................................ 92
Alarm and Status Reporting ................................................................................................... 93
Online Software Loading ........................................................................................................94
Ultra-distance Coverage ........................................................................................ 95

Chapter 5...................................................................................... 98
Networking Modes and System Configurations..................................... 98
Networking Modes ................................................................................................ 98
Star Networking Mode ...........................................................................................................98
Chain Networking Mode .........................................................................................................99
Tree Networking Mode...........................................................................................................99
System Configuration.......................................................................................... 100
Number and Types of Sites .................................................................................................. 100
BTS Configuration Principles................................................................................................. 102
Expansion ........................................................................................................................... 106
Configuration Examples ....................................................................................................... 106
Appendix A .................................................................................117
Pertinent Standards .............................................................................. 117
Appendix B .................................................................................119
Abbreviations ........................................................................................ 119
Appendix C .................................................................................125
Figures................................................................................................... 125
Appendix D.................................................................................127
Tables..................................................................................................... 127
Appendix E .................................................................................129
Index...................................................................................................... 129

This page is intentionally blank.

Confidential and Proprietary Information of ZTE CORPORATION ix
About this Manual
Purpose of this Manual
This manual introduces the working principle, functions and technical
features of ZXG10-OB06 (V1.0) Base Transceiver Station. It enables the
user to have an all-around understanding of the technical features of the
ZXG10-OB06 (V1.0).
In this manual ZXG10-OB06 is also referred as OB06.
The whole documents’ set include:
•ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Guide to
Documentation
•ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical
Manual
•ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Hardware
Manual
•ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Installation
Manual
•ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station
Maintenance Manual-Routine Maintenance
•ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station
Maintenance Manual-Emergency Handling
•ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station
Maintenance Manual-Troubleshooting

ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
x Confidential and Proprietary Information of ZTE CORPORATION
What is in this Manual
This manual includes five chapters:
Section Summary
Chapter 1, System
Architecture
Introduces the background, the standards followed, major
functions, system features, working principles, and the
general structure of both software and hardware of ZXG10-
OB06 (V1.0).
Chapter 2, Technical
Specifications
Introduces the technical specifications of modules and
components of the ZXG10-OB06 (V1.0).
Chapter 3, Interfaces and
Protocols
Describes the different external interfaces and protocols of
ZXG10-OB06 (V1.0).
Chapter 4, System Functions Explains the functions of ZXG10-OB06 (V1.0), including RF,
baseband processing, signaling processing, O&M and Ultra-
distance coverage.
Chapter 5, Networking Modes
and System Configuration
Introduces networking modes, system configurations, and
networking examples of ZXG10-OB06 (V1.0).
Appendix A, Pertinent
Standards
Lists the standards appeared in the manual.
Appendix B, Abbreviations Lists all the abbreviations used in the manual.
Appendix C, Figures Lists all the figures appeared in the manual.
Appendix D, Tables Lists all the tables appeared in the manual.
Appendix E, Index Lists the important words appeared in the manual.
Typographical Conventions
ZTE documents employ the following typographical conventions.
TABLE 1–TYPOGRAPHICAL CONVENTIONS
Typeface Meaning
Italics References to other guides and documents.
“Quotes” Links on screens.
Bold Menus, menu options, input fields, radio button names, check
boxes, drop-down lists, dialog box names, window names
Bold, with first
letter capitalized
Keys on the keyboard and buttons on screens
Constant width Text that you type, program code, files and directory names,
and function names
[ ] Optional parameters
{ } Mandatory parameters

About this Manual
Confidential and Proprietary Information of ZTE CORPORATION xi
Typeface Meaning
| Select one of the parameters that are delimited by it
Note: Provides additional information about a certain topic.
Checkpoint: Indicates that a particular step needs to be checked
before proceeding further.
Tip: Indicates a suggestion or hint to make things easier or
more productive for the reader.
Mouse Operation Conventions
TABLE 2–MOUSE OPERATION CONVENTIONS
Typeface Meaning
Click Refers to clicking the primary mouse button (usually the left
mouse button) once.
Double-click Refers to quickly clicking the primary mouse button (usually the
left mouse button) twice.
Right-click Refers to clicking the secondary mouse button (usually the right
mouse button) once.
Drag Refers to pressing and holding a mouse button and moving the
mouse.
Safety Signs
TABLE 3–SAFETY SIGNS
Safety Signs Meaning
Danger: Indicates an imminently hazardous situation, which if
not avoided, will result in death or serious injury. This signal
word should be limited to only extreme situations.
Warning: Indicates a potentially hazardous situation, which if
not avoided, could result in death or serious injury.
Caution: Indicates a potentially hazardous situation, which if not
avoided, could result in minor or moderate injury. It may also
be used to alert against unsafe practices.
Note: Indicates a potentially hazardous situation, which if not
avoided, could result in injuries, equipment damage or

ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
xii Confidential and Proprietary Information of ZTE CORPORATION
Safety Signs Meaning
interruption of services.
Erosion: Beware of erosion.
Electric shock: There is a risk of electric shock.
Electrostatic: The device may be sensitive to static electricity.
Microwave: Beware of strong electromagnetic field.
Laser: Beware of strong laser beam.
No flammables: No flammables can be stored.
No touching: Do not touch.
No smoking: Smoking is forbidden.
How to Get in Touch
The following sections provide information on how to obtain support for
the documentation and the software.
Customer Support
If you have problems, questions, comments, or suggestions regarding
your product, contact us by e-mail at [email protected]. You can also
call our customer support center at (86) 755 26771900 and (86) 800-
9830-9830.
Documentation Support
ZTE welcomes your comments and suggestions on the quality and
usefulness of this document. For further questions, comments, or
suggestions on the documentation, you can contact us by e-mail at
[email protected]; or you can fax your comments and suggestions to (86)
755 26772236. You can also explore our website at
http://support.zte.com.cn, which contains various interesting subjects like
documentation, knowledge base, forum and service request.

Confidential and Proprietary Information of ZTE CORPORATION 1
Chapter 1
System Architecture
This chapter describes the background, the standards followed, major
functions, system features, working principles and the general structure of
both software and hardware of ZXG10-OB06 (V1.0).
System Introduction
System Background
ZXG10-OB06 is one of the ZXG10-BTS series of base transceiver stations,
and is an integrated outdoor BTS for GSM. A single cabinet supports six
carriers at the maximum.
In one system, it integrates the following:
•Transmission functions
•Power supply
•Environment monitoring and temperature control
It is useful to install in either of the following two conditions:
•The cost of a standard equipment room is too high.
•There is no equipment room at the site, for example, in the
countryside or in the remote areas.
Figure 1 shows the whole ZXG10-OB06 appearance.

ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
2 Confidential and Proprietary Information of ZTE CORPORATION
FIGURE 1–ZXG10-OB06 APPEARANCE
ZXG10-OB06 is located between BSC and MS in the GSM/GPRS network. It
connects to the BSC through Abis interface and to MS through Um
interface.
The ZXG10-OB06 provides the following functions:
•Serving as a radio transceiver for a cell
•Interaction between the BSC and a radio channel
•Wireless transmission with the MS and the related controlling function

Chapter 1 - System Architecture
Confidential and Proprietary Information of ZTE CORPORATION 3
Figure 2 shows the ZXG10-OB06 position (V.1.0) in a GSM/GPRS Network.
FIGURE 2–ZXG10-OB06 POSITION IN GSM/GPRS NETWORK
SGSN
GGSN PLMN
GGSN
SGSN
MSC
Internet
HLR
AUC
MSC/VLR
Gb
OMC
AA
OB06
Gb
Um
BSC
ZTE
Abis
BTS
MS
BSC
OB06
ZTE
Abis
Um
MS
PDN
PSTN
ISDN
PSPDN
PLMN
Standards
ZXG10-OB06 complies with the following standards:
•Standards for RF interface:
•ETSI TS 101 087 (V5.0.0)
•GSM 05.05
•GSM 11.21
•ITUT-T G.703/G.704 standard Abis interface
•GSM 11.21 high/low temperature specifications
In terms of radio services, it complies with the following protocols and
specifications:
•GSM 03.60 General Packet Radio Service (GPRS)
•GSM 03.64 General Packet Radio Service (GPRS) Overall GPRS radio
interface description
•GSM 04.04 Technical Specification Group GSM/EDGE Radio Access
Network Layer 1 General requirements

ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
4 Confidential and Proprietary Information of ZTE CORPORATION
•GSM 04.06 Mobile Station – Base Station System (MS – BSS) interface
Data Link Layer (DLL) specification
•GSM 04.08 Mobile radio interface layer 3 specification
•GSM 04.60 General Packet Radio Service (GPRS) Mobile Station – Base
Station System (MS - BSS) interface Radio Link Control / Medium
Access Control (RLC/MAC) protocol.
•GSM 05.02 Multiplexing and multiple access on the radio path
•GSM 05.08 Radio subsystem link control
•GSM 08.58 Base Station Controller – Base Transceiver Station (BSC –
BTS interface Layer 3 specification
•ETSI 301 489-8 EMC specification
•R&TTE Directive 1995/5/EC
System Features
The ZXG10-OB06 (V1.0) is a compact outdoor BTS with a high capacity. A
single cabinet can support up to six carriers.
The main features of ZXG10-OB06 are as follows:
•Compatible with the following GSM Phases:
•GSM Phase I
•GSM Phase II
•GSM Phase II+
•GSM Frequencies:
•Support GSM900, EGSM900, GSM850, GSM1800, GSM1900
systems.
•Support different frequency band modules inserted in the same
cabinet.
•Provide the following TCH services:
•TCH/FS: Full-rate voice traffic channel
•TCH/HS: Half-rate voice traffic channel
•TCH/EFS: Enhanced full-rate voice traffic channel
•TCH/F9.6: 9.6 Kbps full-rate data traffic channel
•TCH/F4.8: 4.8 Kbps full-rate data traffic channel
•TCH/F2.4: 2.4 Kbps full-rate data traffic channel
•Able to operate in adverse outdoor environment:
•Cabinet features a framework of double-layer section aluminum
and a base of bended aluminum alloy plate. They are good in
erosion resistance and electric condition.
•Possess IP55 protection Level.

Chapter 1 - System Architecture
Confidential and Proprietary Information of ZTE CORPORATION 5
•Provide high-performance electromagnetic shielding and good heat
dissipation. Both front and back doors opens to facilitate maintenance.
•Features direct heat dissipation by wind. It uses fans of high wind
pressure and large wind capacity. Thus, it ensures quick and effective
heat dissipation for the modules.
•Features modular software/hardware design to enhance integration,
facilitate installation and maintenance and improve the system
reliability.
•Provide diversity receiving function. Main diversity technologies are as
follows:
•Space diversity
•Frequency diversity
•Time diversity
•Polarization diversity
•Receiving end adopts the Viterbi soft-decision algorithm. It improves
the channel decoding performance and increases the system receiving
sensitivity and anti-interference capability.
•Support frequency hopping. It improves the system capability against
Rayleigh fading.
•Support discontinuous transmission (DTX) mode. Transmit only the
comfort noise in the voice non-activated period. This reduces the
transmitter power and general interference level in the air signaling.
•Calculate time advance.
•Support configurations with 40 W or 80 W power consumption for
GSM900 and EGSM900 systems and 40 W for GSM1800, GSM1900 and
GSM850 systems.
•Support six TRXs per ZXG10-OB06 BTS for 40 W configuration for the
GMSK mode and 50 W for the 8PSK mode. It also supports S6/6/6
extension of 18 TRXs at the same site.
•Support three TRXs per ZXG10-OB06 BTS for 80 W configuration for
the GMSK mode and 50 W for the 8PSK mode. It also supports S3/3/3
extension of nine TRXs at the same site.
•Support star, chain and tree configuration of Abis interfaces.
•Support satellite transmission links of Abis interfaces, with the
unidirectional transmission delay of Abis interfaces being 260 ms.
•Support LAPD signaling one for four Terminal Equipment Identifier (TEI)
multiplex of Abis interfaces. That is, having pieces of LAPD-signaling
multiplexed into one 64 Kbps signaling time slot though TEI.
•Provide automatic crossover protection function for the Abis interface
link when any one of the cascaded ZXG10-OB06 BTSs is powered off.
•Support pre-processing of ZXG10-OB06 measurement reports.
•Support BS power control of statically six levels and dynamically 15
levels.
•Support all paging modes defined in GSM specifications.

ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
6 Confidential and Proprietary Information of ZTE CORPORATION
•Support synchronous, asynchronous, pseudo- synchronous and pre-
synchronous handovers.
•Provide functions as protection and electromagnetic filtration. The
power system features the following:
•AC input and DC output (over-voltage/under-voltage) protection
It keeps DC output until the temperature is more than -20°C and
cut it off when the temperature falls below -20°C.
•Lightening/surge prevention
•Burst interference resistance
•Cycle drop prevention
•Conduction interference resistance
•Anti-electromagnetic radiation functions
•Power system contains external high-capacity batteries. It provides a
function for management of secondary power down and batteries.
•Uses standard RS232 interface for connection with the local operation
and maintenance terminal. It also provides rapid and reliable online
software upgrade.
•Possess prompt alarm system for the following:
•Unattended BS
•Power supply
•Built-in tower amplifier system
•Support EDGE service hence has a higher data transmission rate by
means of 8PSK modulation.
•Support A51/A52 encryption algorithm at Um interface.
•Support ultra-distance coverage with a radius of 35 km ~ 120 km.
System Working Principle
ZXG10-OB06 (V1.0) system is composed of following units:
•Operation and maintenance unit
•Baseband processor
•RF unit
•Antenna feeder processor
•Transmission unit
•Power unit
•Heat exchanger

Chapter 1 - System Architecture
Confidential and Proprietary Information of ZTE CORPORATION 7
The working principle of the system is as follows:
•Downlink:
i. The ZXG10-OB06 receives data from BSC, including voice and
signaling data.
ii. The transmission unit sends signaling data to the operation &
maintenance unit for processing.
iii. The voice data are then sent to baseband processor for processing
of rate conversion, encryption and interleaving.
iv. Data are then sent to RF unit for modulation to high-frequency
signals.
v. Finally, data are then transmitted through the antenna feeder
processor.
•Uplink:
i. The antenna feeder processor receives the RF signals from the MS.
It then sends these signals to the RF unit to convert into digital
signals.
ii. The signals are then transmitted to baseband processor for rate
signals conversion, decryption and de-interleaving.
iii. After conversion to the code pattern, suitable for long-distance
transmission, the signals are sent to the BSC through the Abis
interface.
Figure 3 demonstrates the working principle of ZXG10-OB06 (V1.0).
FIGURE 3–WORKING PRINCIPLE OF ZXG10-OB06 (V1.0)
ZXG10-OB06
Operation &
maintenanceunit
Baseband
processingunit
RFunit
Antenna
processingunit
Power unit
Heat exchanger
AC input
Data link
System
clock
RF demodulation
signal
Baseband
modulation signal
System clock
Control signal
RF signal
Um interface
Transmissionunit
BSC
Abis

ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
8 Confidential and Proprietary Information of ZTE CORPORATION
Hardware Structure
The ZXG10-OB06 (V1.0) hardware consists of the following units:
•Control and Maintenance Module (CMM)
•Transceiver Module (TRM)
•Antenna Equipment Module (AEM)
•Backplane Transmission Module (BTM)
•Heat Exchanger (HEX)
•Power Module (PWM)
Figure 4 shows the layout of the ZXG10-OB06 system.
FIGURE 4–LAYOUT OF ZXG10-OB06 SYSTEM
1
2
3
4
5
6
7
8
9
1. AEM
2. AEM fan subrack
3. Transceiver Module
4. FDM fan subrack