bts3902e wcdma product description v1.1(20110722)

BTS3902E WCDMA

Product Description

Issue 1.1

Date 2011-07-22

HUAWEI TECHNOLOGIES CO., LTD.

Issue 1.1 (2011-07-22) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd

i

Copyright © Huawei Technologies Co., Ltd. 2011. All rights reserved.

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written consent of Huawei Technologies Co., Ltd.

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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 contract made between Huawei and

the customer. All or part of the products, services and features described in this document may not be

within the purchase scope or the usage scope. Unless otherwise specified in 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

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Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

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mailto:[email protected]

BTS3902E WCDMA Product Description Contents



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Contents

1 Introduction.................................................................................................................................... 1

1.1 Positioning ....................................................................................................................................................... 1

1.2 Benefits ............................................................................................................................................................ 2

2 Architecture .................................................................................................................................... 3

2.1 Overview .......................................................................................................................................................... 3

2.2 Ports ................................................................................................................................................................. 4

3 Installation and Application Scenarios .................................................................................... 5

3.1 Installation Scenarios ....................................................................................................................................... 5

3.2 Application Scenarios ....................................................................................................................................... 6

4 Technical Specifications .............................................................................................................. 7

5 Acronyms and Abbreviations ................................................................................................... 10

BTS3902E WCDMA Product Description 1 Introduction



Page 1 of 13

1 Introduction

1.1 Positioning

The rapid development of mobile communication technology brings sharp growth in the

number of mobile phone users. This growth creates increasingly high requirements for

network quality. Besides enhancing network coverage, operators also need to increase

network capacity to meet rapid increases in traffic volume.

In many hot spots, insufficient of network capacity and the existence of blind spots greatly

affect user experience. To solve these problems, operators urgently need an accurate and

low-cost coverage solution with flexible site deployment.

Following the philosophy of continuous innovation based on customers’ requirements,

Huawei unveils the industry-leading WCDMA mini base station BTS3902E. Characterized by

its small size, light weight, plug-and-play functionality, auto-configuration, and no

requirements for shelter or equipment room, the BTS3902E is flexible in site acquisition and

deployment, making it a quick and flexible site solution for operators.

The BTS3902E is a bi-carrier product. Figure 1-1 shows the unit.

BTS3902E WCDMA Product Description 1 Introduction



Page 2 of 13

Figure 1-1 BTS3902E

1.2 Benefits

Compact Structure for Quick Network Construction

With a highly integrated design, the BTS3902 is small, light, and requires less spare parts,

making it easy to install and maintain. The BTS3902E features strong environment

adaptability and has no need for an equipment room. It can be flexibly mounted on a wall or a

pole. The BTS3902E supports both integrated and separated antennas.

Expanded Capacity and Enhanced Coverage

The BTS3902E accurately absorbs traffic, and therefore expands network capacity and

reduces blind spots. This helps operators enhance network quality and user experience.

Low Power Consumption and Energy Saving

The BTS3902E is another green base station launched by Huawei. It assists operators in

constructing eco-friendly networks.

Smooth Evolution and CAPEX Saving

The BTS3902E supports HSPA+, and can provide high-speed data services in urban hot spots.

BTS3902E WCDMA Product Description 2 Architecture



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2 Architecture

2.1 Overview

As shown in Figure 2-1, the BTS3902E is an integrated base station with the following main

units: transmission interface unit, main processing unit, baseband processing unit, and RF

unit.

Figure 2-1 BTS3902E Structure

Transmission

interface

unit

Main

processing

unit

Baseband

processing

unit

RF

unit

GE/FE

Duplexer

ANT

PA

PA

The function of each unit is as follows:

Transmission interface unit

Provide ports for communication with the RNC and the operation and maintenance (O&M)

channels to LMT or M2000.

Main processing unit

Manages the entire BTS3902E in a centralized manner in terms of O&M and signaling

processing. Also, provides the system clock.

Baseband processing unit

Schedules and processes the uplink and downlink user-plane data on the Iub interface.

RF unit

Modulates, demodulates, processes, and combines and divides baseband signals and RF

signals.

Power Amplifier (PA)

Amplifies low-power RF signals.

Duplexer

BTS3902E WCDMA Product Description 2 Architecture



Page 4 of 13

Allows a common antenna to receive and transmit signals. It also filters receive and transmit

signals.

2.2 Ports

The BTS3902E has a modular structure with ports on the bottom panel, cabling cavity panel,

and LED area. Table 2-1 shows ports on the BTS3902E.

Table 2-1 Ports on the BTS3902E

Modules Port Description

Bottom

panel

ANTA_TX/RX Port A for transmitting and receiving RF signals

ANTB_TX/RX Port B for transmitting and receiving RF signals

ANTC_SON Antenna port of receiver for self-organized network

ETH FE/GE electrical port

OPT0 FE/GE optical port

OPT1 FE/GE optical port

MON Environment monitoring port

PWR Power input

DBG Debug port/ Clock test port/ Port for software

upgrading

LED area Various LEDs RUN, ALM, ACT, VSWR, O, O/E

BTS3902E WCDMA Product Description 3 Installation and Application Scenarios



Page 5 of 13

3 Installation and Application Scenarios

3.1 Installation Scenarios

The BTS3902E is ideal in outdoor installation scenarios. It can be installed on a wall or a pole.

The typical installation scenarios are shown in Figure 3-1.

Figure 3-1 Installation scenarios

BTS3902E WCDMA Product Description 3 Installation and Application Scenarios



Page 6 of 13

3.2 Application Scenarios

The BTS3902E works well for covering hot spots and reducing blind spots. Insufficient

network capacity in hot spots and blind spots greatly affect user experience. With its flexible

deployment, the low-cost BTS3902E helps operators solve these problems. Figure 3-2 shows

application scenarios for the BTS3902E.

Figure 3-2 Application scenarios

BTS3902E WCDMA Product Description 4 Technical Specifications



Page 7 of 13

4 Technical Specifications

Table 4-1 shows the technical specifications of the BTS3902E.

Table 4-1 Technical specifications

Item Specification

Frequency

Band

Frequency Band Receive Frequency

Band (MHz)

Transmit Frequency

Band (MHz)

1900 MHz 1850 to 1910 1930 to 1990

2100 MHz 1920 to 1980 2110 to 2170

Capacity Two cells

Uplink: 192 CEs

Downlink: 192 CEs

Output

power

The BTS3902E supports two carriers. The output power of the antenna

connector in the RF module is 2×5 W.

Supports single output or MIMO

Single output: the maximum output power for each transmit channel is 5 W

MIMO: the maximum output power is 5 W+5 W

Supports configuration of power amplifiers with different power

NOTE The maximum output power equals the maximum output power of the power amplifier

minus the internal loss. The maximum output power is measured at the antenna

connector in the RF module.

Receiver

sensitivity

Frequency Band Receive Diversity

Sensitivity for Single

Antenna (dBm)

Receive Diversity

Sensitivity for

Double Antenna

(dBm)

1900 MHz/2100 MHz -123.0* -125.8*

NOTE

*As recommended in 3GPP TS25.104, receiver sensitivity is measured at the antenna

connector on the condition that the data rate over the channel reaches 12.2 kbit/s and

the Bit Error Rate (BER) does not exceed 0.001.




Page 8 of 13

Item Specification

Transmiss

ion ports

FE/GE electrical port, FE/GE optical port

Clock

synchroni

zation

IP clock (IEEE 1588V2) is synchronous with the Ethernet clock.

Precision: 0.05 ppm

Dimensio

ns (height

x width x

depth)

300 mm x 270 mm x 120 mm (without the antennas and case)

300 mm x 280 mm x 145 mm (with the antennas and case)

Weight 11 Kg (without the antennas and the case)

13 Kg (with the antennas and the case)

Input

voltage

Single phase: 100/200V AC to 120/240V AC

Voltage range: 90/180V AC to 135/290V AC

Power

consumpti

on

Frequency band: 1900 MHz

MIMO

Configuration

Output Power per

Carrier (W)

Typical Value

(W)

Maximum

Value (W)

1×1 2×5 176 184

1×2 2×2.5 176 184

Non-MIMO

Configuration

Output Power per

Carrier (W)

Typical Value

(W)

Maximum

Value (W)

1×1 5 157 165

1×2 5 176 184

Frequency band: 2100 MHz

MIMO

Configuration

Output Power per

Carrier (W)

Typical Value

(W)

Maximum

Value (W)

1×1 2×5 165 173

1×2 2×2.5 165 173

Non-MIMO

Configuration

Output Power per

Carrier (W)

Typical Value

(W)

Maximum

Value (W)

1×1 5 145 153

1×2 5 165 173

NOTE

The typical power consumption level is reached when the base station works with

40% load, and the environment temperature is 25°C.

The maximum power consumption level is reached when the base station works with

100% load, and the environment temperature is 25°C.




Page 9 of 13

Item Specification

Temperatu

re -40°C to +45°C (with solar radiation)

-40°C to +50°C (without solar radiation)

Relative

humidity

5% RH to 100% RH

Relative

humidity

1 g/m3 to 30g/m

3

Air

pressure

70 kPa to 106 kPa

Protection

level:

IP55

Storage

environme

nt

ETSI EN300019-1-1 V2.1.4 (2003-04) Class1.2 "Weatherprotected, not

temperature-controlled storage locations".

Transporta

tion

environme

nt

ETSI EN300019-1-2 V2.1.4 (2003-04) Class 2.3 "Public transportation".

Anti-seis

mic

performan

ce

EC 60068-2-57 (1999-11) Environmental Testing – Part 2-57: Tests – Test Ff:

Vibration – Time-history method.

YD5083-99: Interim Provisions for Test of Anti-seismic Performance of

Telecommunications Equipment.

Electroma

gnetic

compatibil

ity

The BTS3902E can meet the demand of electromagnetic compatibility and is

in accordance with the following standards:

CISPR 22 (1997)

EN 55022 (1998)

EN 301 489-23 V1.2.1 (2002-11)

CISPR 24 (1998)

IEC 61000-4-2

IEC 61000-4-3

IEC 61000-4-4

IEC 61000-4-5

IEC 61000-4-6

IEC 61000-4-29

GB 9254-1998

ETSI 301 489-1 V1.3.1 (2001-09)

FCC Part 15

The BTS3902E has passed the CE (Conformité Européenne) certification.

BTS3902E WCDMA

Product Description 5 Acronyms and Abbreviations



Page 10 of 13

5 Acronyms and Abbreviations

CAPEX Capital Expenditure

CE Channel Element

LMT Local Maintenance Terminal

PA Power Amplifier

TRX Transceiver

UMTS Universal Mobile Telecommunications System

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