BTS3002 Mini Indoor BTS

Huawei Technologies Proprietary

HUAWEI

iSite BTS3002C Integrated Mini BTS System Description

V100R001


iSite BTS3002C Integrated Mini BTS

System Description

Manual Version T2-030254-20060421-C-1.11

Product Version V100R001

BOM 31027154

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. Please feel free to contact our local office 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]


Copyright © 2006 Huawei Technologies Co., Ltd.

All Rights Reserved

No part of this manual 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&C08 iNET, NETENGINE, OptiX, iSite, U-SYS, iMUSE, OpenEye, Lansway, SmartAX, infoX, TopEng are trademarks of Huawei Technologies Co., Ltd.

All other trademarks mentioned in this manual are the property of their respective holders.

Notice

The information in this manual is subject to change without notice. Every effort has been made in the preparation of this manual to ensure accuracy of the contents, but all statements, information, and recommendations in this manual do not constitute the warranty of any kind, express or implied.


Summary of Updates

This section provides the update history of this manual and introduces the contents of subsequent updates.

Update History

This manual is updated for a major product version to maintain consistency with system hardware or software versions and to incorporate customer suggestions.

Manual Version Notes

T2-030254-20051130-C-1.10 Initial commercial release

T2-030254-20060421-C-1.11 Second commercial release


About This Manual

Release Notes

The product version that corresponds to the manual is iSite BTS3002C Integrated Mini BTS V100R001.

Organization

The manual consists of 7 chapters and 1 appendix.

Chapter 1 Introduction. It briefly introduces the orientation of BTS3002C in the network.

Chapter 2 Features. It introduces the main features of BTS3002C.

Chapter 3 Product Description. It introduces the cabinet configuration and system architecture of BTS3002C.

Chapter 4 Functions. It introduces the main functions of BTS3002C.

Chapter 5 Reliability Design. It introduces the measures taken in reliability design of BTS3002C from the aspects of system, hardware and software.

Chapter 6 O&M System. It introduces the operation and maintenance function of BTS3002C.

Chapter 7 Technical Indices. It lists the main performance indices and engineering parameters of BTS3002C.

Appendix A Environment Requirements. It introduces the environment requirements of BTS3002C.

Intended Audience

The manual is intended for the following readers:

GSM engineers & technicians Operation & maintenance personnel

Conventions


The manual uses the following conventions:

I. General conventions

Convention Description

Arial Normal paragraphs are in Arial.

Bold Headings, Command, Command Description are in boldface.

II. Symbols

Eye-catching symbols are also used in the manual 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.

System Description iSite BTS3002C Integrated Mini BTS Table of Contents


i

System Description

Chapter 1 Introduction.................................................................................................................. 1-1 1.1 GSM Network Current Status and Requirement ............................................................... 1-1 1.2 Huawei Marginal Network Solutions.................................................................................. 1-1 1.3 Product Orientation............................................................................................................ 1-2

Chapter 2 Features........................................................................................................................ 2-1 2.1 Product Key Technology.................................................................................................... 2-1 2.2 Environment Adaptability ................................................................................................... 2-1 2.3 O&M Function.................................................................................................................... 2-2

Chapter 3 Product Description .................................................................................................... 3-1 3.1 Product Appearance .......................................................................................................... 3-1 3.2 Function Module ................................................................................................................ 3-1

3.2.1 Hardware Structure ................................................................................................. 3-2 3.2.2 System Architecture ................................................................................................ 3-2

Chapter 4 Functions...................................................................................................................... 4-1 4.1 Basic Functions.................................................................................................................. 4-1 4.2 Networking Functions ........................................................................................................ 4-2

4.2.1 E1 Networking......................................................................................................... 4-2 4.2.2 SDH Networking...................................................................................................... 4-2 4.2.3 Combined Networking............................................................................................. 4-3

4.3 Radio Network Functions................................................................................................... 4-3 4.3.1 Channels Supported ............................................................................................... 4-3 4.3.2 Diversity Receiving.................................................................................................. 4-4 4.3.3 RF Hopping ............................................................................................................. 4-4 4.3.4 Power Control.......................................................................................................... 4-5 4.3.5 Uplink Frequency Scanning .................................................................................... 4-5

Chapter 5 Reliability Design......................................................................................................... 5-1 5.1 System Reliability Design .................................................................................................. 5-1 5.2 Hardware Reliability Design............................................................................................... 5-2 5.3 Software Reliability Design ................................................................................................ 5-3

Chapter 6 O&M System................................................................................................................. 6-1 6.1 O&M Functions .................................................................................................................. 6-1

6.1.1 Security Management ............................................................................................. 6-1 6.1.2 Alarm Management................................................................................................. 6-1 6.1.3 Maintenance Management...................................................................................... 6-1 6.1.4 Performance Measurement and Test ..................................................................... 6-2



ii

6.2 O&M Structure ................................................................................................................... 6-2 6.2.1 Overview ................................................................................................................. 6-2 6.2.2 Local Maintenance .................................................................................................. 6-3 6.2.3 Remote Maintenance .............................................................................................. 6-4

Chapter 7 Technical Indices......................................................................................................... 7-1 7.1 Overall Engineering Indices............................................................................................... 7-1 7.2 Overall Performance Indices ............................................................................................. 7-3 7.3 External Physical Interfaces .............................................................................................. 7-4

Appendix A Environment Requirements ....................................................................................A-1 A.1 Storage Environment Requirements .................................................................................A-1

A.1.1 Climate Requirements ............................................................................................A-1 A.1.2 Waterproof Requirements.......................................................................................A-1 A.1.3 Biological Requirements .........................................................................................A-2 A.1.4 Air Cleanness Requirements ..................................................................................A-2 A.1.5 Mechanical Stress Requirements...........................................................................A-3

A.2 Transportation Requirements............................................................................................A-3 A.2.1 Climate Requirements ............................................................................................A-4 A.2.2 Waterproof Requirements.......................................................................................A-4 A.2.3 Biological Requirements .........................................................................................A-4 A.2.4 Air Cleanness Requirements ..................................................................................A-4 A.2.5 Mechanical Stress Requirements...........................................................................A-5

A.3 Operating Environment Requirements..............................................................................A-6 A.3.1 Climate Requirements ............................................................................................A-6 A.3.2 Biological Requirements .........................................................................................A-7 A.3.3 Air Cleanness Requirements ..................................................................................A-7 A.3.4 Mechanical Stress Requirements...........................................................................A-8

Appendix B Abbreviations ...........................................................................................................B-1

Index ................................................................................................................................................ i-1



i

Table of Contents

Chapter 1 Introduction.................................................................................................................. 1-1 1.1 GSM Network Current Status and Requirement ............................................................... 1-1 1.2 Huawei Marginal Network Solutions.................................................................................. 1-1 1.3 Product Orientation............................................................................................................ 1-2

Chapter 2 Features........................................................................................................................ 2-1 2.1 Product Key Technology.................................................................................................... 2-1 2.2 Environment Adaptability ................................................................................................... 2-1 2.3 O&M Function.................................................................................................................... 2-2

Chapter 3 Product Description .................................................................................................... 3-1 3.1 Product Appearance .......................................................................................................... 3-1 3.2 Function Module ................................................................................................................ 3-1

3.2.1 Hardware Structure ................................................................................................. 3-2 3.2.2 System Architecture ................................................................................................ 3-2

Chapter 4 Functions...................................................................................................................... 4-1 4.1 Basic Functions.................................................................................................................. 4-1 4.2 Networking Functions ........................................................................................................ 4-2

4.2.1 E1 Networking......................................................................................................... 4-2 4.2.2 SDH Networking...................................................................................................... 4-2 4.2.3 Combined Networking............................................................................................. 4-3

4.3 Radio Network Functions................................................................................................... 4-3 4.3.1 Channels Supported ............................................................................................... 4-3 4.3.2 Diversity Receiving.................................................................................................. 4-4 4.3.3 RF Hopping ............................................................................................................. 4-4 4.3.4 Power Control.......................................................................................................... 4-5 4.3.5 Uplink Frequency Scanning .................................................................................... 4-5

Chapter 5 Reliability Design......................................................................................................... 5-1 5.1 System Reliability Design .................................................................................................. 5-1 5.2 Hardware Reliability Design............................................................................................... 5-2 5.3 Software Reliability Design ................................................................................................ 5-3

Chapter 6 O&M System................................................................................................................. 6-1 6.1 O&M Functions .................................................................................................................. 6-1

6.1.1 Security Management ............................................................................................. 6-1 6.1.2 Alarm Management................................................................................................. 6-1 6.1.3 Maintenance Management...................................................................................... 6-1 6.1.4 Performance Measurement and Test ..................................................................... 6-2



ii

6.2 O&M Structure ................................................................................................................... 6-2 6.2.1 Overview ................................................................................................................. 6-2 6.2.2 Local Maintenance .................................................................................................. 6-3 6.2.3 Remote Maintenance .............................................................................................. 6-4

Chapter 7 Technical Indices......................................................................................................... 7-1 7.1 Overall Engineering Indices............................................................................................... 7-1 7.2 Overall Performance Indices ............................................................................................. 7-3 7.3 External Physical Interfaces .............................................................................................. 7-4

System Description iSite BTS3002C Integrated Mini BTS Chapter 1 Introduction


1-1

Chapter 1 Introduction

1.1 GSM Network Current Status and Requirement

Since the mid of 1980s, public mobile communications have witnessed two generations of development with the further development of cellular networking technologies and the emergence of high-capacity mobile communications system. The first generation is analog mobile communications system, which only provides speech services using FDMA technologies. The second generation is the digital mobile communications system, which appeared in 1990s with relevant standards including GSM, IS-95, etc. This system is used for speech services mainly and provides low speed circuit switched data services at the same time. At present, GSM communications network is applied across the world, and more and more people have recognized its big potential of development.

In the early days of GSM communications network, all operators are eager to build high quality communications network in a short term. Based on this situation and features of the network, Huawei provides customized network solutions that are easy to maintain, operate and manage. Its macrocell Base Transceiver Station (BTS) series is featured with high capacity, easy installation and large coverage and has been in service for regions with large populations and demands for big service volume.

As the GSM network operators are expanding GSM communications networks, it has been the main purpose of their investment to increase the network capacity and enhance the service quality. Huawei macrocell BTS featuring with large coverage and high capacity can better meet the operational demands of big cities or regions with large population. However, in rural areas or areas along some highways and railways, macrocell mobile network solutions with big investment and slow building speed cannot meet the new demands for small service volume in bad environment. To solve the problem, Huawei has introduced an easy-to-install integrated BTS with small size, low cost and large coverage.

1.2 Huawei Marginal Network Solutions

Marginal network refers to the area that is not covered by current mobile networks, or that is not in good coverage quality. It mainly refers to the area that generates low profit in contrast to the investment, such as suburb, town, rural area, area around highway or view spot etc. Based on the features of the marginal network, Huawei introduces a marginal network solution with integrated mini BTS. Taking advantage of the features of



1-2

the new product, such as low cost, big accommodation capacity, quick building and large coverage, full coverage of communications network can be realized in rural areas and areas along highways.

Mini BTSs can also be used in some marginal areas of the city, such as railway station, commercial areas, busy streets, shopping malls, airports and other areas with large traffic, to increase capacity of the network. Meanwhile, the service quality can also be enhanced with the network coverage be enlarged if the BTSs are installed in tunnels, garage and underground channels where the macrocell BTSs cannot cover.

Compared with the traditional macrocell BTS network solution, the integrated mini BTS marginal network solution offered by Huawei is characterized by the following advantages listed in Table 1-1.

Table 1-1 Advantages of marginal network solution

Defects in marginal coverage using macrocells Advantages of mini BTS solution

Low profit and dissatisfactory input-output ratio

Network coverage by low cost. Former BTS equipment can be reused fully.

Majority of traditional macrocell BTSs are indoor BTSs with large size and should be complexly installed.

Strict outdoor mini BTS with small size, light weight and can be flexibly installed.

High cost and hard to maintain

Tower, equipment room and air conditioner need not to be prepared. Cost for construction or equipment is low. Low power consumption.

To meet the various requirements of coverage instance, transmission way and network capacity what the marginal network has, Huawei provides iSite BTS3002C integrated mini BTS to the clients.

1.3 Product Orientation

iSite BTS3002C integrated mini BTS is an outdoor mini BTS and features the following:

Small size Large power Easily installed and flexibly accommodated

For the above features, it is a good choice for marginal area coverage. It has all the advantage of small size, large power, flexible site selection, easy installation and economized attached equipment. So it can be applied to the marginal area, the dwelling district of city or in the room.



1-3

Note:

iSite BTS3002C integrated mini BTS is shortened as BTS3002C hereinafter.

System Description iSite BTS3002C Integrated Mini BTS Chapter 2 Features


2-1

Chapter 2 Features

BTS3002C is the 2nd generation of Huawei mini BTS, whose performance and feature design are much better than the common micro-cells.

2.1 Product Key Technology

It is an outdoor mini BTS with small size and light weight, so it involves low cost and can greatly save construction investment.

Its Max. transmission power is 20W or 30W. The 30W TRX supports M900 and EGSM only.

It supports dual-TS wide coverage. It supports single and dual carrier configuration, and adopts modular RF structure. With imbedded optical transmission, it supports SDH loop networking

self-protection and provides one channel of dedicated E1 to other devices. It supports Abis transmission bypass and greatly enhances networking stability. It supports TS frequency hopping and diversity receiving with high receiving

sensitivity. It supports BTS power-off alarm report when UPS and battery are not utilized

(from the alarm report, transmission disconnection and BTS power-off can be differentiated).

It supports GPRS, supports CS3/CS4 radio channel-coding methods. So it can realize the smooth migration from 2G to 3G.

It supports uplink frequency scanning function for network optimization.

2.2 Environment Adaptability

BTS3002C is an outdoor mini BTS with strong environment adaptability.

Fully obturated and integrated architecture. It has strong capability for resisting water, dust, moist, salt (acid) smog, mould and sunshine radiation.

Wide voltage range. It can work normally within the voltage range 150 ~ 300V AC and -40V DC ~ -60V DC.

Flexible working temperature range. When the AC/DC PSU is adopted, BTS3002C can work normally under the temperature -40ÿC ~ +65ÿC (environment temperature). When the indoor DC/DC PSU is adopted, BTS3002C can work normally under the temperature -15ÿC ~ +55ÿC (environment temperature). When the outdoor DC/DC PSU is adopted, BTS3002C can work normally under the temperature -33ÿC ~ +55ÿC (environment temperature).

System Description iSite BTS3002C Integrated Mini BTS Chapter 2 Features


2-2

Strong lightning protection capability. It is designed with imbedded lightning protection board and attached power lightning protection box.

Flexible installation mode. It can be installed on the wall, mast, tower or telegraph pole etc.

Battery power supply supported. Battery power supply can prolong power supply duration when public power supply is halted.

2.3 O&M Function

BTS3002C can perform the following O&M functions: software downloading, BTS object attribute configuration management, equipment management and running state monitoring.

Local end maintenance. It provides Man Machine Interface (MMI), and implements maintenance, monitoring and management to all objects of the BTS through the local maintenance console.

Remote end maintenance. O&M network is built up in the GSM system. The authorized user can use any workstation in the network via the remote maintenance console to perform remote O&M to BTS NEs in the system.

System state monitoring. It provides system running indices indication, resource state indication, local cell configuration and state indication.

Security management. It provides user login authentication, command authority restriction, unsecured operation indication and user group management.

Test, including function self-test and loop test. Office monitoring. It provides data collecting and transmission channels for room

monitoring equipment to ensure unattended BTS with centralized monitoring. Upgrading. It automatically checks the system for upgrading, system upgrading

can be performed via remote loading and the system can be restored to its previous version if system upgrading fails.

1-minute start-up: 1-minute start-up function greatly facilitates routine maintenance of the equipment.

System Description iSite BTS3002C Integrated Mini BTS Chapter 3 Product Description


3-1

Chapter 3 Product Description

3.1 Product Appearance

BTS3002C is designed according to IEC297 standards.

Size: Height % Width % Depth = 700mm % 460mm % 360mm

The appearance is shown in Figure 3-1.

Figure 3-1 BTS3002C appearance

3.2 Function Module

BTS3002C is connected to the Base Station Controller (BSC) via the Abis interface. It helps BSC with radio resource management, radio parameters management and interface management. It also communicates with the Mobile Station (MS) via the Um interface and implements radio transmission between BTS and MS and relevant control functions.



3-2

3.2.1 Hardware Structure

BTS3002C is composed of 4 units, 1 Main Control Unit (MCU), 2 Digital RF Unit (DRU) and 1 Power Supply Unit (PSU), as shown in Figure 3-2.

PSU provides power supply to the system and there is a power supply module in it. DRU provides the receiving and transmitting of carrier and baseband processing

function. It is composed of iSite TRansceiver Unit (ITRU), iSite Power Amplifier Unit (IPAU), iSite Power Filter Unit (IPFU), iSite Duplexer Filter Unit (IDFU) and heating board.

MCU provides interfaces for O&M and transmission and is composed of iSite Operation and Maintenance Unit (IOMU), iSite Access SDH (IASU), iSite LightningProof Unit (ILPU) and heating board.

PSU DRU MCU DRU

Figure 3-2 BTS3002C under full configuration

3.2.2 System Architecture

BTS3002C is composed of 5 subsystems, power supply subsystem, main control subsystem, transceiver subsystem, antenna and feeder subsystem and heating subsystem, as shown in Figure 3-3.

IOMU IBBU

ILPU

Heating subsystem

Power supply subsystem

Antenna and feeder subsystem

Um

IPAUE1

220VAC

BTS3002C

Abis

MMIIASUSDH

Tx

Rx

ITRU

Transceiver subsystemMain control subsystem

Figure 3-3 BTS3002C system architecture



3-3

I. Main Control Subsystem

Main control subsystem is composed of IOMU, IASU, ILPU and the backplane IBMU (iSite BTS3002C Motherboard Unit). It provides the following functions:

Provides periodic alignment signal. Provides communication with O&M. Provides basic clocks to other subsystems and modules. Implements conversion between SDH and E1. Signal lightning protection function. Signaling processing and resource management.

IOMU is the interface and control unit of BTS3002C and integrates the following 4 functions: O&M function, BTS clock source function, BTS transmission interface function and O&M cavity interface function.

O&M module accomplishes the O&M of the whole BTS. BTS clock module provides reference clock signals to BTS transmission interface

module, O&M module and DRU. BTS transmission interface module provides necessary timing calibration signal to

BTS clock module and OML (Operation & Maintenance Link) and HDLC (HDLC, High-speed Digital Link Channel) to O&M module.

O&M cavity provides O&M interface to users, including internal running status indicator, MMI, system debugging port and transmission mode selection.

In addition, IOMU also includes an iSite Power Supply Unit (IPSU), whose power comes from the 27V of the power supply module. After DC/DC conversion, it can be converted to multiple power supply such as !8V, +5V and +3.3V to supply power to boards of the system. Moreover, IPSU respectively provides one channel of backup +5V and +3.3V power supply, so power supply to IMOU and IASU can be sustained temporarily to support alarm report when AC power supply is cut off.

IASU supports 2M interface to accomplish mini BTS embedded SDH transmission. It can be flexibly configured as terminal multiplexer or add/drop multiplexer. With this unit, combined networking can be implemented, including ring networking, link networking, point-to-point network topology and other more complex networking such as star networking, tangency ring networking, intersecting ring networking, ring-link combined networking etc. It has powerful channel protection and multiplexing segment protection function.

ILPU accomplishes the conversion of external signals (E1 signal and alarm signals) from external interfaces to IOMU, and the lightningproof and current limitation of the 2 channels of E1 signals and 5 channels of alarm signals of IOMU. The E1 signal lightningproof module on the IOMU is serial connected to E1 signal cable and the alarm signal lightningproof module is parallel connected to alarm signal cable so that lightning



3-4

current will not enter the board via E1 or alarm cable and strong lightning current can be led to GND cables when the BTS is struck with lightning.

IBMU transmits power and data signals with strong anti-interference capability and reduces the quantity of the cables required.

II. Transceiver Subsystem

Transceiver subsystem is composed of ITRU and IPAU and provides signal baseband processing and RF processing functions as detailed in the following.

Channel encoding and decoding, interleaving and de-interleaving, digital modulation and demodulation, speech encryption and decryption and rate adaptation.

Frequency hopping, power control and temperature detection. Accomplish mapping between logic and physical channels. Accomplish intra-cell and inter-cell handover. Signal up/down frequency conversion, filtering and amplifying. Provide transmission RF signal between transceiver subsystem and antenna and

feeder subsystem. Circuit self-check. Alarm collection.

Transceiver subsystem works according to the following process:

Uplink: Transceiver subsystem receives radio signals from antenna and feeder subsystem, which are converted into analog intermediate frequency signals after balanced amplifying and mixed frequency filtering. Then, after A/D sampling, these signals are conversed into digital intermediate frequency signals, which further become baseband signals after digital down-convert, receiving filtering and digit automatic gain control. After balancing, these signals are sent to BSC via transmission subsystem after demodulation, decryption, de-interleaving, channel coding and rate adaptation.

Downlink: Transceiver subsystem receives data from BSC via main control subsystem. Then after A/D conversion, speech encoding, channel encoding, interleaving, TDMA burst pulse is generated. Then, after encryption, GMSK modulation, D/A conversion, low-pass filtering, I/Q analog signals are generated. Then, I/Q analog signals are transmitted to transmitting carrier after orthogonal modulation. Then, they are sent to power

amplifier to be amplified into a certain level after amplifying and filtering. Finally, they are

transmitted via antenna and feeder subsystem.

ITRU is composed of Tx unit, Rx unit and iSite BaseBand Unit (IBBU). Tx unit accomplishes the modulation from baseband signals to RF signals, and also executes RF frequency hopping and signal driving. Rx is responsible for RF signal demodulation, frequency hopping and diversity receiving and bypass. IBBU implements all baseband processing functions of all duplex channels in one TDMA frame, including signaling



3-5

processing, channel coding/decoding, interleaving/de-interleaving and demodulation. IBBU also supports speech services, data services and GPRS services specified by Phase 2.

IPAU accomplishes the amplifying of RF output signals and supports the static and dynamic power control of BTS3002C.

III. Antenna and Feeder Subsystem

Antenna and feeder subsystem is composed of IDFU, attached combiner, antenna and feeder.

IDFU includes 1 duplexer and 1 diversity receiving filter and they are integrated into one module. The Rx/Tx port of the module is designed with waterproof technique, so it features low insertion loss and high suppression. IDFU is used to isolate the transmitting and receiving of RF signals, and suppress transmitting/receiving outband spuriousness and external interference signals. With IDFU, the number of antenna used can be reduced.

Figure 3-4, Figure 3-5 and Figure 3-6, illustrate how IDFU implements various antenna and feeder configurations. In these figures, DUP means duplexer, FIL means diversity receiving filter, LNA means Low Noise Amplifier, RXm means main receiver, and RXd means diversity receiver. Whether omni antenna or directional antenna will be configured depends on actual implementation.

Figure 3-4 shows the configuration of single carrier (dual feeder). As shown in the figure, there are 3 antenna feeder port in IDFU, Tx/Rx duplex port (Tx/Rx_ANT), diversity Rx port (Rx_ANT) and jumper port when one carrier of the dual carrier is mutually the other's diversity (Rx_OUT).

This type of configuration is applicable to O1 and S1 sites. For O1 site, the antenna can be two omni-directional ones; for S1 site, the antenna can be two unipolarized ones or a dual polarization one. If the two carriers of BTS3002C adopt this configuration, this site can become a S (1/1) site.

IPAU DUP

FIL

RXm

RXd

IDFU

ITRU

TX/RXA

RXB

X

XLNA

X in the figure means antenna and feeder output port, so does it in the next 3 figures.

Figure 3-4 Configuration of single carrier (dual feeder)



3-6

Figure 3-5 shows the configuration of single carrier (single feeder). Single antenna can be adopted to reduce the number of antenna. Under this configuration, internal diversity can be achieved if jumper port and diversity Rx port are connected, which has been proved by experiment that the sensitivity of antenna are improved by 1dB.

This type of configuration is also applicable to O1 and S1 sites. Its difference from the single carrier (dual feeder) is that the only one omni-directional antenna or a directional unipolarized antenna is enough for setting up the O1 or S1 site. S (1/1) site can also be configured by adopting this configuration for the two carriers.

IPAU DUP

FIL

RXm

RXd

IDFU

ITRU

TX/RX

X

Figure 3-5 Configuration of single carrier (single feeder)

Figure 3-6 shows the configuration of dual carrier (dual feeder). This type of configuration is applicable to O2 and S2 sites. For O2 site, the antenna can be two directional ones; for S2 site, the antenna can be two directional unipolarized ones.



3-7

IPAU DUP

FIL

RXmA

RXdA

IDFU

ITRU

TXA/RXA

IPAU DUP

FIL

RXmB

RXdB

IDFU

ITRU

TXB/RXB

X

X

Figure 3-6 Configuration of dual carrier (dual feeder)

Antenna is the end point of signal transmitting and the beginning point of receiving, including omni antenna and directional antenna. The type, gain, coverage direction and front-to-rear ratio of the antenna determine system performance, so network designers select the type of the antenna required according to such parameters as traffic and coverage etc.

Feeder transmits the uplink and downlink signals between the transceiver and antenna via low-loss RF cables.

IV. Heating Subsystem

Heating subsystem includes temperature control circuit and film heating board. Film heating board can raise the temperature of the environment when the internal temperature of the BTS becomes too low so that the mini BTS can still work under the temperature of -40ÿC. MCU and DRU get heated independently.

V. Power Supply Subsystem

Power supply subsystem is composed of power module and supplies power to boards of other subsystem. There are two types of power module: AC/DC PSU and DC/DC PSU.

After converting the input 220V AC into +27V DC, AC/DC PSU supplies power to power amplifier module and film heating board, supplies input power to IPSU part on IMOU, as



3-8

well as provides one channel of +27V backup power (used when AC is cut off) and one channel of +5V temperature-controlled circuit power.

After converting the input 220V AC into +27V DC, DC/DC PSU supplies power to power amplifier module, and supplies input power to IPSU part on IMOU. The DC/DC PSU has two types: indoor and outdoor.

System Description iSite BTS3002C Integrated Mini BTS Chapter 4 Functions


4-1

Chapter 4 Functions

4.1 Basic Functions

BTS3002C has the following basic functions:

GSM900/1800 services Phase II+ all data services prescribed GPRS basic services Phase I/Phase II /Phase II+ compatible LAPDm protocol CS-1/CS-2/CS-3/CS-4 radio channel-coding methods. Phase I/Phase II/ Phase II+ compatible system message broadcasting and

resource indication Enhanced full rate (EFR) speech coding scheme with better speech quality Data service: including transparent transmission of 9.6k, 4.8k, 2.4k,

non-transparent transmission of 12k (9.6k), 6k (4.8k), faxing and WWW browsing), point-to-point short message and cell short message broadcasting.

16K and 64K signaling traffic. Paging queue A5/1 and A5/2 encryption/decryption Basic data dynamic configuration Dynamic resource management Measurement report preprocessing Immediate assignment combination and paging combination, boosting the radio

channel usage Discontinuous transmission(DTX) and Discontinuous Reception(DRX) enhancing

the anti-interference ability Omnidirectional cell and directional cell. It supports O1, O2, S1, S2, S1/1, S1/1/1,

S2/2 and S2/2/2 site configuration mode. Support locked, fast capture, track (normal), hold-over and free-run clock modes Synchronous handover, asynchronous handover and dual band handover Um interface tracing and inner interface tracing Local and remote software downloading Satellite transmission function Static and dynamic power control Directly optical transmission



4-2

4.2 Networking Functions

4.2.1 E1 Networking

BTS3002C supports both star and chain networking modes that are shown respectively in Figure 4-1 and Figure 4-2. In these figures, each line stands for E1 cables. The maximum limitation of the cascading level is 5 for the chain networking mode.

BSC

BTS3002C

BTS3002C

BTS3002C

Figure 4-1 BTS3002C star networking mode

BSC BTS3002C BTS3002C BTS3002C

Figure 4-2 BTS3002C chain networking mode

4.2.2 SDH Networking

SDH networking supports both chain and ring modes. Two modes of SDH networking are shown in Figure 4-3 and Figure 4-4. In these figures, each single line stands for E1 cables and a pair of lines stands for optical fibers. The maximum limitation of the cascading level is 5 for the chain networking mode.

BTS3002C BTS3002CBSC Optical transceiver

Figure 4-3 BTS3002C chain networking



4-3

BTS3002C BTS3002CBSC Optical transceiver BTS3002C

Figure 4-4 BTS3002C ring networking

4.2.3 Combined Networking

Combined networking can be adopted for BTS3002C. Under combined networking mode, SDH link networking is adopted for Abis interface and E1 cascaded networking is adopted for circuit side, as shown in Figure 4-5, in which, each single line means E1 cables and each double lines means optical fibers.

BSC Optical transceiver BTS3002C BTS3002C BTS3002C

BTS3002C BTS3002C

Figure 4-5 BTS3002C combined networking

4.3 Radio Network Functions

4.3.1 Channels Supported

I. Channel Types Supported

TCH/EFS: Traffic Channel/Enhanced Full rate Speech TCH/FS: Traffic Channel/Full rate Speech TCH/F9.6: Traffic Channel/Full rate 9.6kbit/s TCH/F4.8: Traffic Channel/Full rate 4.8kbit/s TCH/F2.4: Traffic Channel/Full rate 2.4kbit/s FCCH: Frequency Correction Channel SCH: Synchronous Channel BCCH: Broadcast Control Channel PCH: Paging Channel RACH: Random Access Channel AGCH: Access Grant Channel SDCCH/8: Stand-alone Dedicated Control Channel/8 SACCH/C8: Slow Associated Control Channel/C8



4-4

SACCH/TF: Slow Associated Control Channel/TF FACCH/F: Fast Associated Control Channel/F SDCCH/4: Stand-alone Dedicated Control Channel/4 SACCH/C4: slow associated control channel/SDCCH/4 CBCH: cell broadcast channel

II. Channel Combinations Supported

TCH/F+FACCH/F+SACCH/TF FCCH+SCH+BCCH+CCCH FCCH+SCH+BCCH+CCCH+SDCCH/4+SACCH/C4 BCCH+CCCH SDCCH/8+SACCH/8 SDCCH/8+SACCH/8+CBCH SDCCH+CBCH+BCCH FCCH+SCH+BCCH+CCCH+SDCCH/4+SACCH/C4+CBCH

Note:

CCCH=PCH+RACH+AGCH

4.3.2 Diversity Receiving

A radio channel is a random time-variable channel with fading features, while the diversity receiving technology is an effective anti-fading technology. Radio signals that are transmitted to RX through radio channels are combination of various multipath components. These signals carry the same message and are featured with irrelevant random fading characteristics. By the diversity receiving technology, these signals can be combined into general receiving signals so as to diminish the effect caused by fading.

The diversity receiving methods include frequency diversity, time diversity, polarity diversity and space diversity. In BTS3002C, polarity diversity, space diversity and frequency diversity are used to diminish the signal fading.

4.3.3 RF Hopping

Frequency hopping is an important method to improve the performance of a BTS. It can not only improve the anti-fading ability of up- and down-link channels, but also improve the security in communications. BTS3002C, introducing dynamic loop bandwidth technology and PingPang handover technology, performs real-time switchover



4-5

between two clock synthesizers to implement RF hopping. This method of RF hopping implementation is highly reliable and lowers the requirement for the speed of clock synthesizers.

4.3.4 Power Control

The BTS power control can be adjusted by BSC to ensure MS stable receiving signal strength. As a result, interference between neighboring channels and BTS power consumption can be decreased. BTS3002C supports both static and dynamic power control.

The BTS3002C static power class is divided into 11 levels (0 ~ 10 level, 2dB/level), and the maximum output power of BTS is 0 level. For example, if the maximum transmit power of the BTS3002C is 20W, then 0 level corresponds to 43dBm and the 10 level corresponds to 23dBm.

BTS dynamic power control is a fine tuning operation based on the static power control and the class of it is divided into 15 levels (0 ~ 15 level, level 0 is the same as that of static power control). If the current maximum transmit power is set to be Pm, then the dynamic power control range will be Pm ~ (Pm-30) dBm. When the maximum value of dynamic power control cannot meet relevant requirement, static power control level should be adjusted to correspondingly increase the maximum magnitude of output power of the dynamic power control.

4.3.5 Uplink Frequency Scanning

Uplink frequency scanning is a special network function of BTS3002C. To know the frequency interference of coverage area for network optimization, downlink frequency can be easily get from the test MS, while it is more complicated to get the uplink frequency. Therefore, BTS3002C provides uplink frequency scanning function to scan uplink frequency for uplink data quality control according to network optimization parameter configuration by utilizing idle TSs of the frequency.

System Description iSite BTS3002C Integrated Mini BTS Chapter 5 Reliability Design


5-1

Chapter 5 Reliability Design

5.1 System Reliability Design

I. System Fault Monitoring and Handling

The system is able to perform auto detect and software and hardware fault diagnosis, and report alarms. It can record and print the fault information, and can collect UPS state information.

The board protection mechanism is adopted in BTS3002C, which ensures timely reset of the whole system for self-healing when a program is in abnormal operation.

There are temperature monitoring subsystem and heat subsystem in BTS3002C. When the temperature is too low, the heating board will start automatically to heat the whole BTS. While when the inside temperature is too high, relevant alarm will be reported until the power supply module initiates shutdown of the BTS due to high temperature.

II. Derate Design

For high-power parts and overheating parts, their rated power should be derated. Therefore, the electric stress and thermal stress these parts bear in practice will be lower than the rated values, and their parameter degeneration can be suspended and life can be prolonged.

III. Temperature Design

The product is designed (through selection of parts, circuit and structure design and heat-sink design) to work reliably in a wide range of temperature avoiding effect on product performance due to temperature change.

IV. Electromagnetic Compatibility Design

In this design, the equipment is supposed to avoid un-allowed degrading due to electromagnetic emission of other equipment in the same environment. In the mean time, it is not supposed to cause un-allowed degrading to other equipment, subsystems or systems in the same environment due to its electromagnetic emission.



5-2

V. Reliability Design for Input Voltage

BTS3002C uses broad voltage and has primary power supply inside. It allows an input voltage range of 150 ~ 300V AC. Equipment will not get damaged during 350V AC instantaneous input so that impact of power fluctuation upon the equipment can be mitigated.

VI. Reliability Design for Fault Detection

When DRU and heating board get faulty, faults can be detected and reported to the background and fault detection rate reaches more than 90%. When MCU gets faulty, major fault mode can be detected and corresponding alarms can be reported under the condition that communication between BTS3002C and BSC or OMC is maintained.

5.2 Hardware Reliability Design

I. Inverse Connection Indication

When installing BTS3002C, if the receiving and transmitting ends of E1 or optical fiber are inversely connected, the cable interface indicator will generate indication.

II. Avoiding Misplugging for Cable Connectors

Labels are stuck on the cable connectors with main labels stating manufacturers, numbers, versions and other information to facilitate proper connections. Measures are taken in the 220V three-phase power input connectors to avoid mispluging. Non-nude connectors can be safely plugged into the power supply.

III. Signal Protection

To avoid effect to the chips caused by power fluctuation (at power-on or power-off especially) all working power supplies in internal boards of BTS3002C will go through strict filtering process before being connected to the chips.

RS232 interface signal: use special protection device for RS232 interface E1 transmission signal: protection on E1 transmission signal can be best

illustrated in lightning protection. BTS3002C employs asymmetry transient depression diode to avoid damage to E1 cables caused by lightning.

IV. Reliability Design for RF Cables

The RF connector shell is reliably connected with the metal layer of structural part for EMC after it is connected with shielding layer of cables. SMA connector is used to ensure the reliable connection between sockets and plugs.



5-3

5.3 Software Reliability Design

I. Fault Isolation Feature

The software design is featured by the module fault isolation, which means faults that occur in a software module are restricted in this module and should not originate faults in other modules. The software has the ability of fault tolerance and correction. Minor faults in software running will not initiate reset or restart of the system.

II. Operational Security

BTS3002C is easy to be connected. Its definite indications for performance and fault can help with quick clearing of faults. The software for MMI and OMC is compatible with indoor BTS with easy-to-use interface.

System Description iSite BTS3002C Integrated Mini BTS Chapter 6 O&M System


6-1

Chapter 6 O&M System

6.1 O&M Functions

BTS3002C O&M system provides the user with powerful O&M functions in consideration of the user’s requirements in equipment performance and maintenance. These functions include: security management, alarm management, maintenance management, performance measurement and test, etc.

6.1.1 Security Management

In view of various remote maintenance operations implemented by the O&M system, the system provides powerful security management system to execute O&M control over the equipment in order to avoid unauthorized operations which may affect normal performance of the equipment.

The user must log in and go through authentication before performing O&M to BTS3002C. The system provides an authorization system with multiple levels to ensure that only authorized users can execute relevant commands for O&M. Meanwhile, dialog boxes are prompted before any important O&M command is executed to get confirmation for the potential problems due to the operations

6.1.2 Alarm Management

BTS3002C O&M system provides highlighted alarm windows and powerful real-time alarm management functions, such as collection, clearing, query, processing, saving, explanation, prompting, shielding, filtering, acknowledging, analyzing, etc. Besides, it also provides on-line help information system and stage filtering system to help the user with quick fault location. It also provides alarm recovery methods.

6.1.3 Maintenance Management

The operation & maintenance center (OMC) implements management over the whole BSS through BSC. Each entity in BTS can perform check and location functions for internal errors so that BSC can implement maintenance to BTS without knowing the internal structure of each entity.

The O&M system can monitor and query the states of boards and the system, keeping the user aware of the system running states. It supports automatic backup of data with



6-2

backup time intervals and directory being customized. It also supports reset of key parts and in-service loading and activation of equipment software.

6.1.4 Performance Measurement and Test

The O&M system can implement performance measurement and test to the equities so as to collect BTS running states data and perform accurate analysis on the running states.

It supports real-time monitoring to partial resources of BTS3002C that can be displayed in graphics, facilitating fault location or performance measurement analysis for the user. These resources include CPU occupancy, RAM occupancy, etc.

Test functions that BTS3002C provides include:

I. Carrier Channel Test

Idle burst test TRX loop test

II. Functional Objects Self-test

Site self-test Cell self-test Carrier self-test Board self-test

6.2 O&M Structure

6.2.1 Overview

BTS3002C is managed by BSC and it is connected after being routed to the upper level network management system (NM system) through Q3/core database interface, or to iManager integrated NM system. Both NM systems implement overall O&M to the equipment to help the user with O&M management.

BTS3002C provides two maintenance modes: local maintenance and remote maintenance (as shown in Figure 6-1). The maintenance system uses an O&M interface with unique navigation tree technology, taking full advantage of the visualized and easy-to-memorize graphical user interface (GUI). The user interfaces of both modes are similar, providing highly visualized equipment panel view.



6-3

Local MaintenanceConsole

Local MaintenanceConsole

MMI

MMI

BTS

BTS

BSC

Abis

Abis

OMCServer

Hub

Remote MaintenanceConsole

Figure 6-1 Remote and local maintenance

6.2.2 Local Maintenance

Local maintenance refers to the maintenance mode in which PCs are connected to BTS3002C by serial port lines and implement maintenance operations to the BTS.

The local maintenance console can only be accessed after the local maintenance software is installed in PCs. The BTS local maintenance is carried out based on different objects of the BTS, which include site, cell, carrier, baseband and board. Real-time alarm messages can also be obtained at the same time. Functions of local maintenance include:

Board software loading and activation. BTS3002C will perform centralized management over the software versions. While the user will choose the software version to be run.

Set attributes for BTS, carrier and channels, and partial extension attributes for the air interface.

Board and BTS reset. Query for versions of software and hardware (some boards). Communicate with UPS via specific interface and manage backup power supply. Usage states of some BTS3002C resources being real-time monitored are

displayed in graphics to facilitate fault location and performance diagnosis. The states include CPU occupancy, RAM occupancy, etc.

The board maintenance interface displays a real physical map of the mini BTS equipment facilitating the user’s check on the running state of the BTS. Real-time display of board states and relevant query control concerning the circuit board is also provided.

Function self-test and loop test for faults in communication loops.



6-4

6.2.3 Remote Maintenance

Remote maintenance is performed through OMC. PCs are connected to BSC via OMC network and are connected subsequently to BTS via the Abis interface.

The remote maintenance console can only be accessed via OMC Shell of the work station (WS). The user interface of the BTS remote maintenance system is in topological structure, where names, categories, locations, numbers, equipment types and running states (normal, alarm, etc.) of all NEs in the mobile network can be browsed. The user can specify a NE to be maintained and check detailed performance data, alarm data and configuration data. He is also supposed to implement O&M to certain type of NEs via the topological map.

System Description iSite BTS3002C Integrated Mini BTS Chapter 7 Technical Indices


7-1

Chapter 7 Technical Indices

7.1 Overall Engineering Indices

Table 7-1 BTS3002C overall engineering indices

Parameter name Indices

Cabinet size (height%width%depth)

700mm%460mm%360mm

Weight 55kg

Single carrier configuration, uninterrupted working (power supply for the whole cabinet)

No heating: 140W (-10ÿC ~ +55ÿC)

With heating: 400W (-20ÿC ~ -10ÿC)

Dual-carriers configuration, uninterrupted working (power supply for the whole cabinet)



Power consumption

Single carrier configuration, low temperature startup (power supply for the whole cabinet)

Startup when environment temperature is at -40ÿC ~ -5ÿC, the consumption is 440W. When the cabinet internal temperature reaches -5ÿC, the consumption is 400W. When the cabinet internal temperature reaches 30ÿC, the consumption is 140W.

Startup when environment temperature is at -5ÿC ~ 0ÿC, the consumption is 400W. When the cabinet internal temperature reaches 30ÿC, the consumption is 140W.

Startup when environment temperature is above 0ÿC, the consumption is 140W.



7-2


Dual-carriers configuration, low temperature startup (power supply for the whole cabinet)

Startup when environment temperature is at -40ÿC ~ -5ÿC, the consumption is 680W. When the cabinet internal temperature reaches -5ÿC, the consumption is 640W. When the cabinet internal temperature reaches 30ÿC, the consumption is 260W.

Startup when environment temperature is at -5ÿC ~ 0ÿC, the consumption is 640W. When the cabinet internal temperature reaches 30ÿC, the consumption is 260W.

Startup when environment temperature is above 0ÿC, the consumption is 260W.

Single carrier configuration (power supply by priority)



Dual-carriers configuration (power supply by priority)



Working environment temperature

Normal operation in -40 ~ 55ÿC

Working environment relative humidity

5% ~ 100%

Clock

Frequency: 1.3%107Hz, ex-factory precision higher than 0.05ppm

Frequency feature: <!5%10-8 (from0ÿC to70ÿC)

Annual aging rate: <!1%10-7

Input power supply When 220V AC input : 150 ~ 300V AC , 47 ~ 63Hz

When -48V DC input : -40V DC ~ -60V DC

Security performance Comply with IEC60950 standards

Anti-vibration performance Comply with IEC Class 4M3 standards

Electromagnetic compatibility Comply with ETS 300-342-3 standards



7-3


Waterproof and dustproof performance

Comply with IP55 standards

7.2 Overall Performance Indices

Table 7-2 BTS3002C overall performance indices

Performance category Parameter name Indices

Channel capacity 8CH/carrier

Frequency band 200kHz

GSM900 (P-GSM):

Uplink: 890 ~ 915MHz

Downlink: 935 ~ 960MHz

GSM900 (R-GSM):



GSM1800:



System indices

Bandwidth

EGSM

Uplink: 880~901MHz

Downlink: 925~946MHz

Static receiving sensitivity

GSM900:-110dBm

GSM1800:-109dBm

Congestion features Comply with GSM11.21 specifications

Anti-interference features Comply with GSM11.21 specifications

Intermodulation rejection Comply with GSM11.21 specifications

Receiving performance

Stray Radiation Comply with GSM11.21 specifications

Transmitting performance

Max. transmit power per carrier

ú43dBm

ú44.8dBm (Adapt to M900 and EGSM)



7-4

Performance category Parameter name Indices

Static power control range 0 ~ 10 level

Dynamic power control range 0 ~ 15 level

Transmit power absolute precision

ñ 2 ! 0.5dB (normal temperature)

ñ 2 ! 1dB (all temperature)

Transmit spectrum Comply with GSM11.21 specifications

Intermodulation rejection Comply with GSM11.21 specifications

Stray Radiation Comply with GSM11.21 specifications

Frequency error ñ 0.05ppm

Phase error ñ 5ÿ(rms)

ñ 20ÿ(peak)

7.3 External Physical Interfaces

Table 7-3 BTS3002C external physical interfaces

Interface name Type Q’ty Functions

E1 2 pairs

Provide E1 interface of 75Ω/120Ω

Support cascade Provide operation and

maintenance link(OML) Abis interface

STM-1 2 pairs

Provide SDH transmission mode

Support cascade Provide operation and

maintenance link(OML)



7-5

Interface name Type Q’ty Functions

Alarm interface ALARM 6

Dry connector alarm interface: supports reporting four channels of dry connector alarm signal

TTL level alarm: supports one channel of TTL level signal alarm, for connecting external UPS alarm signal

485 port alarm: supports one channel of duplex communication, for connecting external alarm equipment such as alarm box

FCLK 1 FCLK test port Clock interface

13MCLK 1 13MHz clock test port

MMI (J2) 1 Provide local maintenance

Network port (J1) 1 IOMU network port Maintenance

interface Network port (J6) 1 IASU network port, providing

maintenance channels.

Power Supply 1 220V AC power input port

or -48V DC power input port Power supply and grounding

Grounding 1 220V AC grounding terminal

or -48V DC grounding terminal

Tx/Rx_ANT 1 Tx/Rx duplex port

Rx_ANT 1 Diversity Rx port Antenna and feeder cable interface

Rx_OUT 1 Jumper port when one of the dual carrier is mutually the other's diversity.

Note:

FCLK and 2M are multiplexed. When line clock is required to be tested on the BTS side, FCLK can be set as default and they (either FCLK or 2M) can be switched through operations on remote or local maintenance console.

System Description iSite BTS3002C Integrated Mini BTS Appendix A Environment Requirements


A-1

Appendix A Environment Requirements

A.1 Storage Environment Requirements

The storage environment requirements for BTS3002C complies with the following standard:

ETSI EN 300 019-1-1 Class1.2 “Weather protected, not temperature controlled storage Locations”.

A.1.1 Climate Requirements

The storage environment of NodeB should meet the climate requirements listed in Table A-1.

Table A-1 Climate requirements

Item Range

Temperature -40°C ~ +70°C

Temperature change rate ï 0.5°C /min

Relative humidity 5% ~ 100%

Altitude ï 3000 m

Atmospheric pressure 70 kPa ~ 106 kPa

Solar radiation ï 1120 W/s²

Heat radiation ï 600 W/s²

Wind speed ï 30 m/s

A.1.2 Waterproof Requirements

The storage environment of NodeB should meet the waterproof requirements listed below.

1) If the equipment is to be stored inside the equipment room, place it as required. Ensure that there is no water on the ground or no water flows into the package. Do not store the equipment near such places as automatic fire-fighting facilities

and heating facilities where water leakage may occur.



A-2

2) If the equipment is to be placed outside the equipment room, all the following four conditions should be met.

The package is kept well. There are waterproof measures to prevent rain from entering the package. There is no water on the ground where the package is placed or no water flows

into the package. The package is not exposed to the sunshine.

A.1.3 Biological Requirements

The storage environment of NodeB should meet the biological requirements listed below.

Prevent the propagation of epiphyte and mildew. Prevent damage by rodent animals, such as mouse.

A.1.4 Air Cleanness Requirements

The storage environment of NodeB should meet the air cleanness requirements listed below.

There is no explosive, conductive, magneto-conductive or corrosive dust in the air.

The density of mechanically active materials complies with Table A-2.

Table A-2 Density requirement for mechanically active materials

Mechanically active material Unit Content

Suspending dust mg/m³ ≤5

Precipitable dust mg/m²·h ≤20

Sand mg/m³ ≤300

Note:

Suspending dust: diameter ≤75μm Precipitable dust: 75μm≤ diameter ≤150μm Sand: 150μm≤ diameter ≤1000μm

The density of chemically active materials complies with Table A-3.

Table A-3 Density requirement for chemically active materials

Chemically active material

Unit Content

SO2 mg/m³ ≤0.30



A-3


Unit Content

H2S mg/m³ ≤0.10

NOx mg/m³ ≤0.5

NH3 mg/m³ ≤1.00

Cl2 mg/m³ ≤0.10

HCl mg/m³ ≤0.10

HF mg/m³ ≤0.01

O3 mg/m³ ≤0.05

A.1.5 Mechanical Stress Requirements

The storage environment of NodeB should meet the mechanical stress requirements listed in Table A-4.

Table A-4 Mechanical stress requirements

Item Sub-item Range

Offset ≤1.5mm None

Accelerated speed None ≤4.9m/s² Sinusoidal

vibration

Frequency range 2 ~ 9Hz 9 ~ 200Hz

Impulse response spectrum II

≤40m/s² Non-stable impulse

Payload ≤5kPa

Note:

Impulse response spectrum refers to the maximum accelerated speed response curve generated by the equipment under the specified impulse motivation. Impulse response spectrum II means that the duration of half-sine impulse response spectrum is 6 ms.

Payload refers to the bearable pressure from the upper piled equipment with package in prescribed piling mode.

A.2 Transportation Requirements

The transportation environment requirements for BTS3002C complies with the following standard:



A-4

ETSI EN 300 019-1-2 Class2.3 “Public transportation”.


The transportation environment of NodeB should meet the climate requirements listed in Table A-5.


Item Range

Temperature -40°C ~ +70°C


Atmospheric pressure ú70 kPa

Solar radiation ≤1120 W/s²

Heat radiation ≤600 W/s²

Wind speed ≤20 m/s

A.2.2 Waterproof Requirements

The transportation environment of NodeB should meet the waterproof requirements listed below.

The package is kept well. Waterproof measures shall be taken to prevent rain entering the package. There is no water inside the transportation vehicles.


The transportation environment of NodeB should meet the biological requirements listed below.



The transportation environment of NodeB should meet the air cleanness requirements listed below.


The density of mechanically active materials complies with Table A-6.



A-5



Suspending dust mg/m³ ≤3.0

Precipitable dust mg/m²·h ≤0.1

Sand mg/m³ No obvious sand

Note:

Suspending dust: diameter ≤75μm Precipitable dust: 75μm≤ diameter ≤150μm Sand: 150μm≤ diameter ≤1000μm



Precipitable dust mg/m²·h ≤3.0

Suspending dust mg/m³ ≤0.1


Table A-8 Density requirement for chemically active materials


Unit Content

SO2 mg/m³ ≤0.30

H2S mg/m³ ≤0.10

NOx mg/m³ ≤0.5

NH3 mg/m³ ≤1.00

Cl2 mg/m³ ≤0.10

HCl mg/m³ ≤0.10

HF mg/m³ ≤0.01

O3 mg/m³ ≤0.05


The transportation environment of NodeB should meet the mechanical stress requirements listed in Table A-9.



A-6


Item Sub-item Range

Offset ≤3.5 mm None None

Accelerated speed None ≤10 m/s² ≤15 m/s² Sinusoidal

vibration

Frequency range 2 ~ 9 Hz 9 ~ 200 Hz 200 ~ 500 Hz

Spectrum density of accelerated speed

1 m²/s³ 0.3 m²/s³ Random vibration

Frequency range 10 ~ 200 Hz 200 ~ 2000 Hz

Impulse response spectrum I

≤100 m/s²

Impulse response spectrum II

≤300 m/s²

Non-stable impulse

Payload ≤10 kPa

Note:

Impulse response spectrum refers to the maximum accelerated speed response curve generated by the equipment under the specified impulse motivation. Impulse response spectrum I means that the duration of half-sine impulse response spectrum is 11 ms. Impulse response spectrum II means that the duration of half-sine impulse response spectrum is 6 ms.


A.3 Operating Environment Requirements

The operating environment requirements for BTS3002C complies with the following standard:

“ETSI EN 300 019-1-4 Class4.1 Non-weather protected locations”.


The operation environment of NodeB should meet the climate requirements listed in Table A-10.



A-7


Item Range

Temperature -40°C ~ 55°C

Temperature change rate ≤0.5°C /min


Altitude ≤3000 m

Atmospheric pressure 70 kPa ~ 106 kPa

Solar radiation ≤1120 W/m²

Heat radiation ≤600 W/m²

Wind speed ≤50 m/s


The operation environment of NodeB should meet the biological requirements listed below.



The operation environment of NodeB should meet the air cleanness requirements listed below.



Table A-11 Density requirements for corrosive gases

Chemically active material Unit Content

SO2 mg/m³ ≤0.30

H2S mg/m³ ≤0.10

NH3 mg/m³ ≤1.00

Cl2 mg/m³ ≤0.10

HCL mg/m³ ≤0.10



A-8

Chemically active material Unit Content

HF mg/m³ ≤0.01

O3 mg/m³ ≤0.05

NOx mg/m³ ≤0.05


The operation environment of NodeB should meet the mechanical stress requirements listed in Table A-12.


Item Sub-item Range

Offset ≤3 mm None

Accelerated speed None ≤10.0 m/s² Sinusoidal vibration

Frequency range 2 ~ 9 Hz 9 ~ 200 Hz

Impulse response spectrum II ≤250 m/s² Non-stable

impulse Payload 0

Note:

Impulse response spectrum refers to the maximum accelerated speed response curve generated by the equipment under the specified impulse motivation. Impulse response spectrum II means that the duration of half-sine impulse response spectrum is 6 ms.


System Description iSite BTS3002C Integrated Mini BTS Appendix B Abbreviations


B-1

Appendix B Abbreviations

A

AB Access Burst

AGCH Access Grant Channel

ARFCN Absolute Radio Frequency Channel Number

B

BAM Back Administration Module

BCCH Broadcast Control CHannel

BSC Base Station Controller

BSIC Base transceiver Station Identity Code

BSS Base Station Sub-System

BTS Base Transceiver Station

BTSM BTS Management

C

CBCH Cell Broadcast CHannel

CCCH Common Control CHannel

CCH Control Channel

D

DCCH Dedicated Control CHannel

DDF Digital Distribution Frame

DL Data Link (layer)

DRU iSite Digital Radio Frequency Unit

DRX Discontinuous Reception

DTX Discontinuous transmission (mechanism)

E

EFR Enhanced full rate speech coder

EMC Electro Magnetic Compatibility; ElectroMagnetic

F

FACCH Fast ACCH

FACCH/F Fast Associated Control Channel/Full rate

FCCH Frequency Correction CHannel



B-2

FH Frequency Hopping

FN Frame Number

G

GMSC Gateway Mobile-services Switching Centre

GPRS General Packet Radio Service

GSM Global System for Mobile communications

H

HDLC High level Data Link Control

HLR Home Location Register

I

IASU iSite Access SDH Unit

IBBU iSite BaseBand Unit

IBMU iSite BaseBand Motherboard Unit

ID Identification/IDentity

IMEI International Mobile station Equipment Identity

IMSI International Mobile Subscriber Identity

IOMU iSite Operation and Maintenance Unit

IPAU iSite Power Amplifier Unit

IPFU ISite Power Filter Unit

ISDN Integrated Services Digital Network

ITRU iSite TRansceiver Unit

L

L1 Layer 1

L2 Layer 2

L2ML Layer 2 Management Link

L3 Layer 3

LA Location Area

LAPD Link Access Protocol on the D channel

LAPDm Link Access Protocol on the Dm channel

Lm Half rate traffic channel

M

MCU Main Control Unit

MM Mobility Management



B-3

MMI Man Machine Interface

MS Mobile Station

MSC Mobile-services Switching Centre, Mobile Switching Centre

MSISDN Mobile Station International ISDN Number

O

O&M, OM Operations & Maintenance

OMC Operations & Maintenance Centre

OML Operations & Maintenance Link

OSI Open System Interconnection

P

PCH Paging Channel

PH Physical (layer)

PLMN Public Land Mobile Network

PP Point-to-Point

PSTN Public Switched Telephone Network

PSU Power Supply Unit

R

RACH Random Access CHannel

RR Radio Resource management

RSL Radio Signaling Link

RXLEV Received signal level

RXQUAL Received Signal Quality

S

SACCH Slow Associated Control CHannel

SACCH/C4 Slow Associated Control CHannel/SDCCH/4

SACCH/C8 Slow Associated Control CHannel/SDCCH/8

SACCH/T Slow Associated Control CHannel/Traffic channel

SACCH/TF Slow Associated Control CHannel/Traffic channel Full rate

SCH Synchronization CHannel

SDCCH Stand-alone Dedicated Control CHannel

SFH Slow Frequency Hopping

SIM Subscriber Identity Module

SMS Short Message Service



B-4

SMSCB Short Message Service Cell Broadcast

T

TA Timing Advance

TC Transcoder

TCH Traffic CHannel

TCH/F A full rate TCH

TCH/F2.4 A full rate data TCH (2.4kbit/s)

TCH/F4.8 A full rate date TCH (4.8kbit/s)

TCH/F9.6 A full rate data TCH (9.6kbit/s)

TCH/FS A full rate Speech TCH

TDMA Time Division Multiple Access

TEI Terminal Equipment Identifier

TMSI Temporary Mobile Subscriber Identity

TRAU Transcoder and Rate Adaptor Unit

TS Time Slot

V

VLR Visitor Location Register

Figure B-1

System Description iSite BTS3002C Integrated Mini BTS Index


i-1

Index

A abbreviation, B-1

Abis interface, 7-4

alarm

interface, 7-5

management, 6-1

anti-vibration performance, 7-2

appearance, 3-1

B basic function, 4-1

biological requirement, A-2

C chain networking, 4-2

channel supported

channel combination, 4-4

channel type, 4-3

chemically active material, density requirement,

A-2

cleanness requirement, A-2

climate requirement, A-1

combined networking, 4-3

D derate design, 5-1

diversity receiving, 4-4

downlink, 3-4

dual feeder, 3-5, 3-7

E E1 networking

chain networking, 4-2

star networking, 4-2

EFR, 4-1

electromagnetic compatibility, 7-2

design, 5-1

environment

adaptability, 2-1

relative humidity, 7-2

temperature, 7-2

external physical interface, 7-4

F fault detection, 5-2

fault monitoring and handling, 5-1

frequency band, 7-3

frequency error, 7-4

function module

hardware structure, 3-2

system architecture, 3-2

H hardware structure, 3-2

I IASU, 3-3

IBMU, 3-4

IDFU, 3-5

ILPU, 3-3

IOMU, 3-3

IPAU, 3-5

IPSU, 3-3

ITRU, 3-4

K key technology, 2-1

L local maintenance, 6-3

M maintenance management, 6-1

System Description iSite BTS3002C Integrated Mini BTS Index


i-2

marginal network solution, 1-1

mechanical stress requirement, A-3

MMI, 2-2

N networking mode

combined networking, 4-3

E1 networking, 4-2

SDH networking, 4-2

O O&M function, 2-2, 6-1

alarm management, 6-1

maintenance management, 6-1

performance measurement and test, 6-2

security management, 6-1

O&M structure, 6-2

OMC Shell, 6-4

operation environment





operational security, 5-3

overall parameter

engineering parameter, 7-1

performance parameter, 7-3

P performance measurement and test, 6-2

phase error, 7-4

power control, 4-5

dynamic, 4-5

static, 4-5

precipitable dust, density requirement, A-2

PSU, 2-1

R receiving performance, 7-3

reliability design, 5-1

remote maintenance, 6-4

RF hopping, 4-4

S SDH networking, 4-2

chain networking, 4-2

ring networking, 4-3

security management, 6-1

security performance, 7-2

signal protection, 5-2

single feeder, 3-6

star networking, 4-2

storage environment, A-1

suspending dust, density requirement, A-2

system architecture, 3-2

antenna and feeder subsystem, 3-5

control subsystem, 3-3

heating subsystem, 3-7

power supply subsystem, 3-7

transceiver subsystem, 3-4

T technical specification, 7-1

temperature design, 5-1

transportation environment





waterproof requirement, A-4

U uplink, 3-4

uplink frequency scanning, 4-5

W waterproof requirement, A-1

weight, 7-1

work station, 6-4

WS, 6-4

i.

Documents

BTS3002 Mini Indoor BTS