GBSS12[1].0 a Product Description V1.0_20100303

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GBSS12.0 BTS3900(A) Product

Description

Issue V1.0

Date 2010-03-03

HUAWEI TECHNOLOGIES CO., LTD.



Copyright © Huawei Technologies Co., Ltd. 2010. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without priorwritten consent of Huawei Technologies Co., Ltd.

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and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respectiveholders.

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 orrepresentations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation 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 BaseBantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

http://www.huawei.com/

mailto:[email protected]

mailto:[email protected]

http://www.huawei.com/



GBSS12.0 BTS3900(A) Product Description

Issue V1.0 (2010-03-03)Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.Page 3 of 27

Contents

1 Introduction....................................................................................................................................4

1.1 Overview........................................................ ............................................................ ...................................... 4

1.2 Benefits .......................................................... ............................................................ ...................................... 5

2 System Architecture......................................................................................................................6

2.1 Overview........................................................ ............................................................ ...................................... 6

2.2 BBU3900..........................................................................................................................................................6

2.3 RFU..................................................................................................................................................................8

2.4 GATM ............................................................ ........................................................... ..................................... 10

2.5 BTS3900(A) Cabinets ...................................................... ............................................................ .................. 11

3 Products and Applications ........................................................................................................15

3.1 Typical Application Scenarios........................................................................................................................15

3.2 Portfolio and Application of Fourth-Generation BTSs...................................................................................17

4 Technical Specifications ............................................................................................................19

4.1 RF Specification.............................................................................................................................................19

4.2 Input Power ..................................................... ........................................................... .................................... 21

4.3 Power Consumption ......................................................... ............................................................ .................. 21

4.4 Specification of the Equipment ...................................................... ............................................................ ....23

4.5 Environment Specification ................................................... ........................................................... ...............25

5 Abbreviations ..............................................................................................................................27






1 Introduction

1.1 Overview

In rapidly changing field of mobile communication, there is utmost need for continuous

improvement in the products. The growing trend in mobile communications comprises of aseries of evolution: from GSM to EDGE to EDGE+, and from UMTS to HSPA to HSPA+,and LTE. To keep pace with the trend, the network operators are forced to increase the

CAPEX and optimize the OPEX with the changing technologies, and therefore operators arecurrently facing the challenge of merging the multiple network subsystems into a more cost-

effective network. The solution is to move towards the convergence of multi-mode networks.

As an innovative and customer-oriented company, Huawei takes the lead in developing the

fourth generation BTSs, which will outclass other base stations to benefit operators withfuture-oriented mobile networks. The BTS3900 GSM and the BTS3900A GSM are indoor

macro BTS and outdoor macro BTS of the fourth-generation BTSs respectively (hereinafter

referred to as BTS3900 and BTS3900A respectively).

The BTS3900 and BTS3900A consist of two basic modules. Flexible combination of basicmodules and cabinets help Huawei products stay unique. As shown in Figure 1-1, theBTS3900 and BTS3900A are characterized by compact structure, high integration, low power

consumption, and fast deployment.

Figure 1-1 BTS3900 and BTS3900A






1.2 Benefits

Simple S tructure and Multi-Mode Convergence

The BTS3900 and BTS3900A have only two types of basic modules. The simplified structurereduces spare parts and saves maintenance cost. The basic modules combined with different

cabinets increases the variety of installation modes, such as separate mode and stack mode.

The BTS3900 and BTS3900A can support multiple network modes by sharing one cabinet orusing the same transmission and network management system, thus achieving the

convergence of multi-mode networks.

Broadband Service and Enhanced User Experience

Considerable improvement has been made on the BTS in terms of baseband processing and

internal bandwidth expansion, and support MCS-9 services at all timeslot levels on the airinterface. IP transport is supported on the Abis interface, the transmission bandwidth expands

enormously, which further enhances the user experience.

Low Power Consumption

With the help of the advanced hardware designs, for example, multi-carrier PA, as well as a

series of software power saving technique, the power consumption of the BTS3900 and

BTS3900A is greatly reduced, which helps in deploying an environment friendly network.

Smooth Evolution and Reduced CAPEX

The BTS3900 and BTS3900A supports smooth evolution to EDGE+. During the evolution, all

the hardware can be reused. The BTS3900 and BTS3900A can also support multiple network

modes by adding RF modules, which helps operators to reduce CAPEX.






2 System Architecture

2.1 Overview

The BTS3900 and BTS3900A have a modular design. They have two types of basic modules:

Baseband control Unit (BBU3900) and Radio Frequency Unit (RFU), which are connected

through high-speed Common Public Radio Interface (CPRI) ports. The GSM Antenna andTMA Control module (GATM), an optional module tailored for need in different scenarios, is

used to control the TMA and Remote Electrical Tilt (RET) antenna.

The BTS3900 cabinet is an indoor macro cabinet, and the BTS3900A cabinets are applied

outdoors, which include the outdoor Radio Frequency Cabinet (RFC), Advanced PowerModule (APM30H(Ver.B)(hereinafter referred to as APM30H)), Intergrated Battery Backup

System (IBBS200D/IBBS200T), and Transmission Cabinet (TMC11H).

2.2 BBU3900

It is a baseband control unit, responsible for the interaction between the BTS and the BSC.

The BBU3900 performs the following functions:

l Signal interaction between the BTS and the BSCl Provides the system clock

l Manages the entire BTS system in terms of Operation and Maintenance (OM) and signalprocessing

l Provides an OM channel connection to the Local Maintenance Terminal (LMT) or

M2000.

2.2.1 Appearance of the BBU3900

The BBU3900 has a case structure. Figure 2-1 shows the BBU3900.

Figure 2-1 BBU3900






The following boards and module are mandatory for the BBU3900:

l GTMU: the main control board

l FAN: the FAN unit

l

UPEU: Power moduleThe following boards and module are optional for the BBU3900:

l USCU: the Universal Satellite Card and Clock Unit

l UEIU: the Universal Environment Interface Unit

l UTRP: the Universal Transmission Processing Unit

Figure 2-2 shows the panel of the BBU3900.

Figure 2-2 Panel of the BBU3900

2.2.2 Ports on the BBU3900

Table 2-1 Ports on the mandatory boards of the BBU3900

Board Port Specification

CPRI For communication with the RF module (6 ports)

E1/T1 Supporting four E1s/T1s

ETH For local maintenance and commissioning

FE0 Electrical port for IP transport over the Abis interface

FE1 Optical port for IP transport over the Abis interface

TST For testing the clock

USB Used for automatic software upgrade through the USB disk

GTMU

EXT Reserved port

PWR Power supply port

MON0 Supporting one RS485 signal


EXT-ALM0 Supporting four dry contact alarms

UPEU







Table 2-2 Ports on the optional boards of the BBU3900

Board Port Specification




UEIU


GPS Used for receiving GPS signals

RGPS Used for receiving RGPS signals

TOD0 Used for receiving or transmitting 1PPS+TOD signals

TOD1Used for receiving or transmitting 1PPS+TOD signals, andreceiving TOD signals from the M1000

BITSUsed for receiving BITS clock signals, supporting adaptiveinput of 2.048 MHz and 10 MHz clock reference source

USCU

M-1PPS Used for receiving 1PPS signals from the M1000

UTRP E1/T1 Supporting eight E1s/T1s

2.3 RFUThe RFU performs the following functions:

l Modulation and demodulation between baseband signals and RF signalsl Data processing

l Signal combination and division

The RFU is classified into following two types:

l Double Radio Frequency Unit (DRFU): supports a maximum of two carriers for small-

or medium-capacity scenario.

l GSM Radio Frequency Unit (GRFU): supports a maximum of six carriers for large-

capacity system.

2.3.1 Appearance of the DRFU

The DRFU, known as the RF module, adopts the double-transceiver technique and installed in

the BTS3900 or BTS3900A. Figure 2-3 shows the DRFU.






Figure 2-3 DRFU

2.3.2 Ports on the DRFU

Table 2-3 Ports on the DRFU

Port Specification

ANT1

ANT2

Antenna connector, used to connect the antenna system

CPRI0 Connected to the lower-level RFU in the cascading configuration

CPRI1 Connected to the BBU directly, or connected to the upper-level RFU in thecascading configuration


RX1 in Input port for diversity signals in antenna channel 1

RX1 out Output port for diversity signals in antenna channel 1

RX2 in Input port for diversity signals in antenna channel 2

RX2 out Output port for diversity signals in antenna channel 2

2.3.3 Appearance of the GRFU The GRFU, also an RF module, adopts the multi-carrier technology and resides in theBTS3900 or BTS3900A. Figure 2-4 shows the GRFU.






Figure 2-4 GRFU

2.3.4 Ports on the GRFU

Table 2-4 Ports on the GRFU

Port Specification

ANT_TX/RXA

ANT_ RXB

Antenna connector, used to connect the antenna system

CPRI0 Connected to the BBU directly, or connected to the upper-level RFU in

the cascading configuration

CPRI1 Connected to the lower-level RFU in the cascading configuration

MON Monitoring port


RX_INB Input port for diversity signals in the antenna channel

RX_OUTA Output port for diversity signals in the antenna channel

2.4 GATMThe GATM controls the RET antenna and TMA. When the DRFU is installed in the cabinet,

GATM should be configured if the RET antenna or Tower Mounted Amplifier is selected.The GRFU controls the RET antenna and TMA. It is not required to configure the GATM

while configuring the GRFU.

2.4.1 Appearance of the GATM

The GATM resides in the BTS3900 or BTS3900A . Figure 2-5 shows the GATM.






Figure 2-5 GATM

2.4.2 Ports on the GATM

Table 2-5 Ports on the GATM

Port Specification

ANT0, ANT2, ANT4 Providing power for the TMA and transmitting control signals forthe RET antenna

ANT1, ANT3, ANT5 Providing power for the TMA

COM1 Connected to the BBU3900

COM2 Providing the extended RS485 port

-48V Power supply port

2.5 BTS3900(A) Cabinets

2.5.1 BTS3900 Cabinet

The BTS3900 cabinet, an indoor macro cabinet, houses the BBU3900 and RFUs. A singleBTS3900 cabinet accommodates a maximum of six RFU. The BTS3900 cabinet supports the

following functions:

l Power distribution and surge protection

l -48 V DC power input

l +24 V DC and 220 V AC power inputs if configured with different power modules

Figure 2-6, Figure 2-7, and Figure 2-8 show the internal structure of the indoor macro

cabinets with different power inputs.

Figure 2-6 –48 V DC BTS3900 cabinet






Figure 2-7 +24 V DC BTS3900 cabinet

Figure 2-8 220 V AC BTS3900 cabinet

2.5.2 RFC

The RFC houses the RFUs and provides the functions such as power distribution and surgeprotection. The RFC works in direct-ventilation mode to dissipate heat, and it can be

configured with a maximum of six RFUs. Figure 2-9 shows the internal structure of the RFC.

Figure 2-9 Internal structure of the RFC






2.5.3 APM30H

The APM30H provides -48 V DC power and backup power to the outdoor macro BTS andalso provides installation space for the BBU3900 and other devices. The APM30H, which can

be installed in areas of poor air quality, dissipates heat based on the heat exchange system andtwo air circulation fans. The APM30H is compact and lightweight. Figure 2-10 shows theinternal structure of the APM30H.

Figure 2-10 Internal structure of the APM30H

Table 2-6 Technical specifications of the APM30H

Item Specification

Dimensions

(H x W x D)

700 mm x 600 mm x 480 mm (excluding the base)

Weight APM30H: < 76.5 kg (excluding user devices)

Working

temperature–40°C to +50°C

The AC heat exchanger is required if the temperature

is below –20°C.

Engineeringspecifications

Relative humidity 5% RH to 100% RH

Input voltage 176 V AC to 290 V ACAC input

Frequency 50 Hz/60 Hz

Output voltage –48 V DCDC output

Quantity of DC

outputs

l 30 A: 4

l 12 A: 2

l 4 A: 4

Without the AC

heat exchangerProviding 7 U space for installationInstallation

space

With the AC heat

exchangerProviding 6 U space for installation






2.5.4 IBBS200D/IBBS200T

The IBBS200D/IBBS200T is installed if the long-time power backup is required. Small sized

and easy to transport, the IBBS200D/IBBS200T can be applied to outdoors. The IBBS200Dworks in direct-ventilation mode to dissipate heat. The cooler is installed on the inner side of

the IBBS200T cabinet door, enabling the IBBS200T to adapt to high ambient temperature.

The IBBS200D/IBBS200T provide a maximum of –48 V 184 Ah DC backup power through

the built-in batteries. Figure 2-11 shows the internal structure of the IBBS200D/IBBS200T.

Figure 2-11 Internal structure of the IBBS200D/IBBS200T

2.5.5 TMC11H

The TMC11H is configured if additional transmission space is required. Small sized and easyto transport, the TMC11H can be installed in outdoors, and it dissipates heat based on the heat

exchanger system and two air circulation fans. The BBU3900 can be installed in the TMC11H.

The TMC11H provides a space of 11 U for installing user devices. Figure 2-12 shows the

internal structure of the TMC11H.

Figure 2-12 Internal structure of the TMC11H






3 Products and Applications

3.1 Typical Application Scenarios

The BTS3900 is installed indoors. The -48 V BTS3900 cabinet can be stacked on top of

another -48 V BTS3900 cabinet; Figure 3-1 shows the single BTS3900 and two BTS3900s instack mode. Renowned as the most compact indoor macro BTS in telecom industry, the

BTS3900 features large capacity, high scalability, and small footprint. It can also supportGSM+UMTS dual-mode application.

Figure 3-1 BTS3900

For outdoor installation scenarios, the outdoor macro BTS (BTS3900A) is used. The RFU isinstalled in the RFC, and the BBU3900 is installed in the APM30 or TMC. Table 3-1

describes the typical configuration of the BTS3900A. Figure 3-2, Figure 3-3, and Figure 3-4show the product portfolio of APM30H+RFC, TMC11H+RFC, APM30H+RFC+IBBS200D,and APM30H+ RFC +TMC11H+IBBS200D.

Table 3-1 Typical configuration BTS3900A

Configuration Description

APM30H+RFC Six RFU, no backup power

TMC11H+RFC Providing installation space for user devices and no backup

power;

The site supplies DC power.






Configuration Description

APM30H+RFC+

IBBS200DSix RFU: power backup (184 Ah) for 5 hours

APM30H+RFC+

TMC11H+IBBS200D

Six RFU: power backup (184 Ah) for 4 hours (if the powerconsumption of the TMC is less than 200 W)

Figure 3-2 APM30H+RFC

Figure 3-3 TMC11H+RFC






Figure 3-4 APM30H+RFC+IBBS200D

Figure 3-5 APM30H+RFC+TMC11H+IBBS200D

3.2 Portfolio and Application of Fourth-Generation BTSs

By providing various product forms of fourth-generation BTSs to cater the demand for

network deployments in different scenarios, Huawei provides operators with a comprehensive

total network solution. Huawei fourth-generation BTSs consist of the indoor macro BTS(BTS3900), outdoor macro BTS (BTS3900A), distributed BTS (DBS3900), and compact

BTS (BTS3900E).

The BTS3900 applies to indoor installation scenarios where population density is high, traffic

is large, lease expense for equipment rooms is high, and space is limited. The BTS3900Aapplies to outdoor installation scenarios in urban, suburb, and rural areas where large-capacityand wide coverage is required. The DBS3900 applies to outdoor scenarios where wide

coverage is required and site construction is difficult. The BTS3900E applies to indoorcoverage and coverage in hotspot areas. Figure 3-6 shows the applications of the Huawei

fourth-generation BTSs.






Figure 3-6 Portfolio and application of fourth-generation BTSs






4 Technical Specifications

4.1 RF Specification

Table 4-1 RF Specification of the DRFU

Item Specification

Frequency band RX frequency band

(MHz)

TX frequency band

(MHz)

EGSM 900 MHz 880–915 925–960

PGSM 900 MHz 890–915 935–960

Supportedfrequencyband

GSM 1,800 MHz 1,710–1,785 1,805–1,880

Capacity l A single cabinet supports a maximum of 12 carriers, and a single cell

supports a maximum of 24 carriers.

l A single site supports a maximum of 36 carriers and a maximum

configuration of S12/12/12.

Outputpower

900 MHz (GMSK/8PSK)

l Uncombined: 45 W/30 W

l Combined: 20 W/14 W

l PBT: 71 W/47 W

1,800 MHz (GMSK/8PSK)

l Uncombined: 40 W/26 W

l Combined: 18 W/12 W

l PBT: 63 W/42 W

Receiveindependency Two-way receivediversity Four-way receivediversityReceiverspecification

–113 dBm –116 dBm –118.5 dBm






Table 4-2 RF Specification of the GRFU

Item Specification

Frequency band RX frequency band

(MHz)

TX frequency band

(MHz)

PGSM 900 MHz (V2) 890–915 935–960

EGSM 900 MHz (V2) 880–915 925–960

1,710–1,770 1,805–1,865GSM 1,800 MHz

(V2)1,725–1,785 1,820–1,880

1,850–1,890 1,930–1,970

Supported

frequencyband

GSM 1,900 MHz

(V1)1,870–1,910 1,950–1,990

Capacity l A single cabinet supports a maximum of 36 carriers, and a single cell

supports a maximum of 24 carriers.

l A single site supports a maximum of 72 carriers and a maximum

configuration of S24/24/24.

Frequency band Receive independency Two-way receive

diversity

900 MHz –113.5 dBm –116.5 dBm

Receiverspecification(V2)

1,800 MHz –113.8 dBm –116.8 dBm

Frequency band Receive independency Two-way receivediversity

Receiverspecification(V1)

1,900 MHz –113 dBm –116 dBm

900 MHz/1,800 MHz (GMSK/8PSK, V2)

With power sharing:

l 3 TRX: 31 W/20 W

l 4 TRX: 27 W/17 W

l 5 TRX: 16 W/10 W

l 6 TRX: 16 W/10 W

Without power sharing:

l 3 TRX: 27 W/17 W

l 4 TRX: 20 W/13 W

l 5 TRX: 12 W/8 W

l 6 TRX: 10 W/6.6 W

Outputpower

(Class 0)

RF standard: ETSI TS 100 910 V8.20.0

900 MHz/1,800 MHz (GMSK/8PSK, V2)

With power sharing:

l 3TRX：31W/20W

l 4TRX：27W/17W

l 5TRX：20W/13W

l 6TRX：20W/13W


l 3TRX：27W/17W

l 4TRX：20W/13W

l 5TRX：16W/10W

l 6TRX：12W/8W

Outputpower

(Class 2)

1,900 MHz (GMSK/8PSK, V1)






Item Specification

With power sharing:

l 3TRX：31W/20W

l 4TRX：27W/17W

l 5TRX：20W/13W

l 6TRX：16W/10W


l 3TRX：27W/17W

l 4TRX：20W/13W

l 5TRX：12W/8W

l 6TRX：10W/6.6W

RF Standard 3GPP TS 45.005 V8.2.0 multicarrier BTS class 2 requirement

Class 0 is the multi-carrier RF standard defined on the basis of the ETSI standard for the

GSM SCPA.

4.2 Input Power

Table 4-3 Input Power

Item Specification

Input power l –48V DC; Voltage range: –38.4 V DC to –57 V DC

l +24V DC; Voltage range: +21.6 V DC to +29 V DC

l 110V AC; Voltage range: 90 V AC to 135 V ACl 220V AC; Voltage range: 176 V AC to 290 V AC

4.3 Power Consumption

4.3.1 Power Consumption of the BTS3900

Table 4-4 Power Consumption (DRFU)

Item Specification

Configuration Typical value (W)

S2/2/2, 900 MHz, TOC=45 W 750

S4/4/4, 900 MHz, TOC=20 W 1,140

S2/2/2, 1,800 MHz, TOC=40 W 750

Powerconsumption(DC input)

S4/4/4, 1,800 MHz, TOC=18 W 1,150






The typical power consumption is measured with a 30% load.

Table 4-5 Power Consumption (GRFU, V2)

Item Specification


S4/4/4, 900 MHz, TOC=20 W 680

S6/6/6, 900 MHz, TOC=16 W 670

S4/4/4, 1,800 MHz, TOC=20 W 710

Powerconsumption

(Class 0, DCinput)

S6/6/6, 1,800 MHz, TOC=16 W 710

S4/4/4, 900 MHz, TOC=20 W 630

S6/6/6, 900 MHz, TOC=20 W 680

S4/4/4, 1,800 MHz, TOC=20 W 680

Powerconsumption

(Class 2, DCinput)

S6/6/6, 1,800 MHz, TOC=20 W 720

4.3.2 Power Consumption of the BTS3900A

Table 4-6 Power Consumption (DRFU)

Item Specification


S2/2/2, 900 MHz, TOC=45 W 860

S4/4/4, 900 MHz, TOC=20 W 1,290

S2/2/2, 1,800 MHz, TOC=40 W 860

Powerconsumption(AC input)

S4/4/4, 1,800 MHz, TOC=18 W 1,300






Table 4-7 Power Consumption (GRFU, V2)

Item Specification


S4/4/4, 900 MHz, TOC=20 W 770

S6/6/6, 900 MHz, TOC=16 W 760

S4/4/4, 1,800 MHz TOC=20 W 810

Power

consumption(Class 0, ACinput)

S6/6/6, 1,800 MHz, TOC=16 W 800

S4/4/4, 900 MHz, TOC=20 W 720

S6/6/6, 900 MHz, TOC=20 W 710

S4/4/4, 1,800 MHz, TOC=20 W 770

Powerconsumption

(Class 2, ACinput)

S6/6/6, 1,800 MHz, TOC=20 W 820

4.4 Specification of the Equipment

Table 4-8 Equipment specification of BTS3900

Item Specification

Transmissionports

GTMU: four E1s/T1s, one FE electrical port, and one FE optical port

GTMU+1UTRP: eight E1s/T1s, one FE electrical port, and one FE

optical port

Dimensions

(H x W x D)

900 mm x 600 mm x 450 mm (without base)

940 mm x 600 mm x 450 mm (with base)

Weight Empty cabinet:57 kg

Cabinet in full configuration:132 kg

Table 4-9 Equipment specification of BTS3900A

Item Specification

Transmissionports

GTMU: four E1s/T1s, one FE electrical port, and one FE optical port

GTMU+1UTRP: eight E1s/T1s, one FE electrical port, and one FE

optical port

Dimensions

(H x W x D)

RFC: 700 mm x 600 mm x 480 mm

Stacked with APM30H: 1400 mm x 600 mm x 480 mm(without base)

Stacked with APM30H: 1600 mm x 600 mm x 480 mm(with base)






Item Specification

Weight Empty RFC cabinet: 58 kg

RFC Cabinet in full configuration: 118 kg

Stacked with APM30H in full configuration: 183 kg






4.5 Environment Specification

Table 4-10 Environment Specification for BTS3900

Item Specification

Temperature –20°C to +55°C (Short-term : +50°C to +55°C)

Relativehumidity

5% RH to 95% RH

Air pressure 70 kPa to 106 kPa

Protectiondegree

IP20

Storage

environment

ETSI EN 300019-1-1 Class 1.2: “Weather protected, not temperature-

controlled storage locations”

Transportenvironment

ETSI EN 300019-1-2 Class 2.3: “Public transportation”

EMC The BTS3900 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 ETSI 301 489-1 V1.5.1 (2004)

l FCC 47CFR Part15 (2006)

l

IEC61000-4-2l IEC61000-4-3

l IEC61000-4-4

l IEC61000-4-5

l IEC61000-4-6

l IEC61000-4-29

Availability ≥ 99.9994%

MTBF DRFU: 161,000 hours

GRFU: 167,000 hours

MTTR ≤ 1 hour






Table 4-11 Environment Specification of BTS3900A

Item Specification

Temperature –40°C to +55°C (Short-term : +50°C to +55°C)

Relativehumidity

5% RH to 100% RH

Air pressure 70 kPa to 106 kPa

Protectiondegree

IP55

Storageenvironment

ETSI EN 300019-1-1 Class 1.2: “Weather protected, not temperature-controlled storage locations”

Transportenvironment

ETSI EN 300019-1-2 Class 2.3: “Public transportation”

EMC The BTS3900A 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 ETSI 301 489-1 V1.5.1 (2004)

l FCC 47CFR Part15 (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

Availability ≥ 99.9991%

MTBF DRFU: 106,000 hours

GRFU: 109,000 hours

MTTR ≤ 1 hour




5 Abbreviations

Abbreviation Expansion

APM Advanced Power Module

BBU Baseband control Unit

CPRI Common Public Radio Interface

DRFU Double Radio Frequency Unit

GATM GSM Antenna and TMA control Module

GRFU GSM Radio Frequency Unit

GTMU GSM Transmission &Timing & Management Unit for BBU

IBBS Integrated Battery Backup System

LTE Long Term Evolution

MTBF Mean Time Between Failures

MTTR Mean Time to Recovery

PMU Power and Environment Monitoring Unit

RFC Radio Frequency Cabinet

RFU Radio Frequency Unit

TMC Transmission Cabinet

TOC Top of Cabinet

UEIU Universal Environment Interface Unit

UPEU Universal Power and Environment Interface Unit

USCU Universal Satellite Card and Clock Unit

UTRP Universal Transmission Processing Unit

Documents

GBSS12[1].0 a Product Description V1.0_20100303