GSM BTS3900B Product Description

GBSS8.1 BTS3900B Product Description

Issue V1.2

Date 2009-10-28

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The purchased products, services and features are stipulated by the commercial contract made between Huawei and the customer. All or partial products, services and features described in this document may not be within the purchased scope or the usage scope. Unless otherwise agreed by the contract, all statements, information, and recommendations in this document are provided “AS IS” without warranties, guarantees or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

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V1.2 (2009-10-28) Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd. of 14

Contents

1 Overview................................................................................................................................... 4 1.1 Positioning .................................................................................................................................................4 1.2 Benefits......................................................................................................................................................5

2 Architecture .............................................................................................................................. 6 2.1 Overview ...................................................................................................................................................6 2.2 Components ...............................................................................................................................................6 2.3 Ports...........................................................................................................................................................7 2.4 Typical Configuration.................................................................................................................................8

3 Application Scenarios.............................................................................................................. 9 3.1 General ......................................................................................................................................................9 3.2 Application of the BTS3900B.....................................................................................................................9

4 Technical Specification ......................................................................................................... 11 4.1 RF Specifications .....................................................................................................................................11 4.2 Power Supply...........................................................................................................................................11 4.3 Power Consumption .................................................................................................................................12 4.4 Specifications of the Equipment................................................................................................................12 4.5 Environment Specification........................................................................................................................13

5 Acronyms and Abbreviations............................................................................................... 14



1 Overview

1.1 Positioning

By keeping up with the rapid development in the field of wireless communications, the wireless communication network becomes more reliable. However, for the blind spot coverage and private network with specific coverage, capacity, and service requirements, more flexible solutions are required. Customer-oriented and innovative, Huawei unveils the industry-leading BTS3900B GSM compact pico BTS (hereafter referred to as the BTS3900B).

With the volume of only 2 L, the BTS3900B integrates multiple functional units of the traditional BTS, enabling multiple functions of the traditional BTS. Incorporated with the compact and noiseless design, as well as the support of IP transport, the BTS3900B features flexible site selection possibility and easy installation, enabling fast and cost-effective blind spot coverage. In addition, the BTS3900B provides effective services to small office buildings and Small and Medium-Sized Enterprises (SMEs) with the private network.

As an intelligent BTS, the BTS3900B features automatic data configuration, and automatic frequency configuration, enabling convenient deployment and maintenance of the BTS. The BTS3900B supports dual-band network configuration and a maximum of two carriers. Figure 1-1 shows the BTS3900B.

Figure 1-1 BTS3900B



1.2 Benefits

Simple Structure and Quick Network Construction The BTS3900B is 2 L in volume and 1.5 kg in weight, one of the smallest pico BTS ever developed in the industry. No dedicated equipment room is required for the BTS3900B, and it can be easily installed by one person with few common tools. The compact and integrated design of the BTS3900B facilitates installation, removal, and fast deployment. The BTS3900B supports automatic data configuration, and automatic frequency configuration, enabling the provision of services in a short time.

Flexible Applications with IP Transport The BTS3900B supports the IP transport and IPSec protocol, ensuring the data security during the transmission. Adopting the IP transport, the BTS3900B can fully use the existing IP network resources, reducing the transmission cost significantly. The BTS3900B can easily access the IP network, facilitating flexible applications. The BTS3900B can provide private coverage for SMEs and small office buildings. It can also work with the existing indoor coverage networks, improving the indoor coverage in places such as malls, buildings, and parking lots. This enriches the GSM network solutions.

Energy-Saving and Green Communication Design The low power consumption design and natural heat dissipation mode enable the BTS3900B to work in energy saving and mute mode. The maximum power consumption of the BTS3900B in dual-carrier configuration is only 32 W. The BTS3900B supports a wide range of AC input voltage from 90 V AC to 264 V AC. Therefore, the normal AC power can be supplied to the BTS3900B for flexible deployment. The BTS3900B can also work in Power over Ethernet (PoE) mode. Through the Ethernet cable, the BTS3900B can obtain power from the PoE power equipment. In PoE mode, the BTS3900B supports a maximum of one carrier, and the Ethernet cable supports a maximum distance of 100 m.The BTS3900B works in mute mode. Therefore, the indoor BTS3900B does not affect the life and work of people, facilitating flexible site selections.

Smooth Evolution and CAPEX Saving In indoor applications, data services are rapidly developed. The BTS3900B supports the GPRS and EDGE packet services and smooth evolution to the EDGE+, thus providing higher data rates. During the BTS3900B evolution, only the software upgrade. In this case, the CAPEX is saved.



2 Architecture

2.1 Overview

The BTS3900B adopts highly integrated design. The functions such as transmission, main control, baseband processing, RF processing, and power amplifying of the traditional BTS are all integrated in the BTS3900B. T

2.2 Components

The main components of the BTS3900B consist of the baseband processing board, RF module, and plastic housing. The baseband processing board processes baseband signals and implements main control and transmission functions, and the RF module transmits, receives, and processes RF signals.

If AC power supply is used, the power adapter is required for the BTS3900B. The power adapter converts the AC power into the working voltage of the BTS3900B. If the PoE mode is adopted, external PoE power equipment must be configured. The PoE power equipment supplies power to the BTS3900B through the Ethernet cable. In this case, the power adapter is not required.

The BTS3900B can be employed with built-in antennas or external antennas. Figure 2-1 shows the BTS3900B with external antennas and BTS3900B with built-in antennas.



Figure 2-1 BTS3900B (with external and built-in antennas)

2.3 Ports

The ports on the BTS3900B consist of a power supply socket, FE port, USB port, and clock test port. The BTS3900B also has a reset button.

Figure 2-2shows the ports and button on the BTS3900B.

Figure 2-2 Ports and button on the BTS3900B

(1) Power supply socket (2) FE port (3) CPRI port (4) Clock test port

(5) Reset button (6) USB port



Table 2-1describes the ports on the BTS3900B.

Table 2-1 Ports on the BTS3900B

Port Quantity Description

Power supply socket

1 For feeding the AC power supply through the power adapter

FE port 1 l For communications with the IP network devices such as

the switch of the public network, or DSL/IP modem

l For feeding the power supply from the PoE power

equipment through the Ethernet cable when the BTS3900B works in PoE mode

CPRI port 1 It is reserved.

Clock test port 1 For testing the clock signals

USB port 1 For loading preset configuration

2.4 Typical Configuration The BTS3900B can work in 1-2 carriers. Table 2-2 describes the typical configuration of the BTS3900B.

Table 2-2 Typical configuration of the BTS3900B

Typical Configuration

Hardware Configuration Description

O1or O2 l BTS3900B (including the antenna): 1

l Power adapter: 1

The BTS3900B can be configured with two RF modules working in different frequency bands.



3 Application Scenarios

3.1 General

The BTS3900B is small and compact, works in mute mode, and occupies a small space. Therefore, the BTS3900B can easily be installed in a proper place without affecting the life and work of people. The BTS3900B can be installed on a wall, in the void of a suspended ceiling, or on a ceiling according to actual conditions. The BTS3900B can be easily and quickly installed with few common tools. Figure 3-1 shows the typical installation options of the BTS3900B.

Figure 3-1 Typical installation options

3.2 Application of the BTS3900B

The BTS3900B can flexibly meet the requirements for blind spot coverage and private coverage. The CAPEX on a site is small. Therefore, the BTS3900B is an excellent supplement to the existing network solution. The BTS3900B has an outstanding performance in the blind spot coverage and small private coverage. In addition, the BTS3900B supports IP transport, AC input, and fast deployment. Therefore, the BTS3900B is also applicable to temporary emergency communications. Figure 3-2 shows the typical application of the BTS3900B.



Indoor Coverage

Along with the development of cities, the indoor mobile application has become widespread. For indoor coverage scenarios, however, operators are facing great challenges from the perspective of site selection and construction speed. If macro BTSs are used to serve indoor coverage, operators are frequently confronted with high lease cost of equipment rooms, and the noises generated by macro BTSs make site acquisition even more difficult. Therefore, operators are pressing for a BTS that places the equipment room in dispensable and generates low noises. In indoor coverage scenarios, the BTS may be installed in locations such as the light-current shaft, or storeroom. Such locations present complicated environment, confined installation space, and highly difficult installation, which requires the BTS compact, light, and possessed with strong environment adaptability.

Attributing to its compact structure, zero-noise design, and marvelous performance, the BTS3900E aids operators in constructing an indoor network with high capacity and good coverage. Such network, without doubt, brings more benefits for operators. As a signal source, the BTS3900E, combined with the DAS, can be widely applied in indoor coverage scenarios that require high capacity and quality, such as hotels, office buildings, supermarkets, and business centers. Figure 3-2 shows one of the application scenarios.

Figure 3-2 Typical application scenario



4 Technical Specification

4.1 RF Specifications

Item Specification

Band RX Band (MHz) TX Band (MHz)

EGSM900 880 to 915 925 to 960

GSM1,800 1,710 to 1,785 1,805 to 1,880

GSM850 824 to 849 869 to 894

Supported Band

GSM1,900 1,850 to 1,910 1,930 to 1,990

Capacity The maximum configuration of the BTS3900B is O2.

Output Power GMSK: 200 mW ; 8PSK: 126 mW

RX Specification

Static Receiver Sensitivity: -100 dBm

4.2 Power Supply

Item Specification

110 V/220 V AC, power adapter used, voltage range: 90 V AC to 264 V AC

Input Power

-54 V DC, PoE power equipment used, voltage range: -52 V DC to -56 V DC



4.3 Power Consumption

Item Specification

Configuration Maximum Power Consumption (AC input)

O1 20 W

Power Consumption

O2 32 W

4.4 Specifications of the Equipment

Item Specification

Height (mm) Width (mm) Depth (mm) Dimensions

165 230 54

Weight 1.5 kg



4.5 Environment Specification

Item Specification

Temperature –10℃ to +40℃ (Short-term: +40℃ to +45℃)

Relative humidity 5% RH to 95% RH

Air pressure 70 kPa to 106 kPa

Operating environment

ETSI EN 300019-1-3 V2.2.2 (2004-07) Class 3.1: "Temperature-controlled locations"

Storage environment

ETSI EN 300019-1-1 V2.1.4 (2003-04) Class 1.2: "Weather protected, not temperature-controlled storage locations"

Transportation environment

ETSI EN 300019-1-2 V2.1.4 (2003-04) Class 2.3: "Public transportation"

Protection degree IP30

EMC The BTS3900B meets the Electromagnetic Compatibility (EMC) requirements and complies with the following standards:

l CISPR 22 (2003) l CISPR 24 (1998-09+ A1:2001 A2:2003) l EN55022(2006) l IEC61000-4-2 l IEC61000-4-3 l IEC61000-4-4 l IEC61000-4-5 l IEC61000-4-6 l IEC61000-4-29 l ETSI 301 489-1 V1.5.1(2004) l ETSI 301 489-8 V1.2.1(2002) l ETSI EN 301 502 V8.1.2 2001-07 l ITU-R SM.329-10 2003 l FCC 47CFR Part5(2006)

Availability ≥ 99.9998%

MTBF 633,000 hours

MTTR ≤ 1 hour



5 Acronyms and Abbreviations

Abbreviation Expansion

8PSK 8 Phase-Shift Keying

DSL Digital Subscriber Line

EDGE Enhanced Data rates for GSM Evolution

EDGE+ EDGE Evolution

EMC Electro Magnetic Compatibility

GMSK Gaussian Minimum Shift-frequency Keying

GPRS General Packet Radio Service

IPSec IP Security Protocol

PoE Power over Ethernet

RH Relative Humidity

GSM BTS3900B Product Description

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