Huawei Bts3900a Gsm Product Description (v300r008_03) 4g474e

BTS3900A GSM V300R008

Product Description

Issue

03

Date

2008-07-15

Part Number

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Copyright © Huawei Technologies Co., Ltd. 2008. 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.

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BTS3900A GSM Product Description

Contents

Contents About This Document.....................................................................................................................1 1 System Structure of the BTS3900A.........................................................................................1-1 2 Overview of the BTS3900A......................................................................................................2-1 2.1 Marketing Orientation of the BTS3900A........................................................................................................2-2 2.2 Structure of the BTS3900A Cabinet...............................................................................................................2-2 2.3 Logical Structure of the BTS3900A................................................................................................................2-7 2.4 Software Structure of the BTS........................................................................................................................2-8

3 Power Distribution Modes of the BTS3900A.......................................................................3-1 4 Monitoring System of the BTS3900A.....................................................................................4-1 5 Reference Clocks of the BTS3900/BTS3900A........................................................................5-1 6 Signal Flow of the BTS3900/BTS3900A.................................................................................6-1 7 Topologies of the BTS...............................................................................................................7-1 8 Configuration of the BTS3900/BTS3900A.............................................................................8-1 8.1 Configuration Principles of the BTS3900/BTS3900A....................................................................................8-2 8.2 RF Signal Cable Connections of the DRFU....................................................................................................8-7 8.3 Topology of DRFUs Connected by RI Cables.........................................................................................8-14 8.4 Typical Configuration of the BTS3900/BTS3900A.....................................................................................8-16

9 OM System of the BTS..............................................................................................................9-1 9.1 OM Modes of the BTS....................................................................................................................................9-2 9.2 OM Functions of the BTS...............................................................................................................................9-6

10 Technical Specifications of the BTS3900A........................................................................10-1 10.1 Capacity Specifications of the BTS3900/BTS3900A.................................................................................10-2 10.2 RF Specifications of the BTS3900/BTS3900A..........................................................................................10-2 10.3 Engineering Specifications of the BTS3900A............................................................................................10-3 10.4 Surge Protection Specifications of the BTS3900A.....................................................................................10-5 10.5 Physical Ports of the BTS3900A.................................................................................................................10-5 10.6 Compliance Standards of the BTS3900/BTS3900A...................................................................................10-8 10.7 Environmental Requirements of the BTS3900A......................................................................................10-10 10.7.1 Environmental Requirements for Operating the BTS3900A...........................................................10-10 Issue 03 (2008-07-15)

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Contents

10.7.2 Environmental Requirements for Transporting the BTS3900A......................................................10-12 10.7.3 Environmental Requirements for Storing the BTS3900A...............................................................10-15

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BTS3900A GSM Product Description

Figures

Figures Figure 1-1 BTS3900A system architecture..........................................................................................................1-1 Figure 2-1 Typical configuration of a BTS3900A cabinet (1).............................................................................2-3 Figure 2-2 Typical configuration of a BTS3900A cabinet (2).............................................................................2-4 Figure 2-3 Typical configuration of a BTS3900A cabinet (3).............................................................................2-5 Figure 2-4 Typical configuration of a BTS3900A cabinet (4).............................................................................2-6 Figure 2-5 Logical Structure of the BTS3900A...................................................................................................2-7 Figure 2-6 Software structure of the BTS............................................................................................................2-8 Figure 3-1 Power distribution of the BTS3900A.................................................................................................3-1 Figure 4-1 Monitoring ports of the BBU..............................................................................................................4-1 Figure 4-2 Structure of the monitoring system....................................................................................................4-2 Figure 6-1 DL traffic signal flow.........................................................................................................................6-1 Figure 6-2 UL traffic signal flow.........................................................................................................................6-2 Figure 6-3 Signaling flow.....................................................................................................................................6-3 Figure 7-1 Star topology of the BTS....................................................................................................................7-1 Figure 7-2 Chain topology of the BTS.................................................................................................................7-1 Figure 7-3 Tree topology of the BTS...................................................................................................................7-2 Figure 7-4 Ring topology of the BTS...................................................................................................................7-2 Figure 7-5 Regroupment for disconnection in the ring topology.........................................................................7-5 Figure 8-1 Slots of the BBU.................................................................................................................................8-7 Figure 8-2 Mapping between the RF signal cables and their colors....................................................................8-8 Figure 8-3 Connections of RF cables for S1 (without transmit diversity/with transmit diversity)/S2 (without transmit diversity).................................................................................................................................................8-9 Figure 8-4 Connections of RF cables for S2 (PBT)/S3 (without transmit diversity)/S4 (without transmit diversity) .............................................................................................................................................................................8-10 Figure 8-5 Connections of RF signal cables for S2 (4-way receive diversity)..................................................8-11 Figure 8-6 Connections of RF cables for S2 (transmit diversity)/S4 (transmit independency).........................8-12 Figure 8-7 Connections of RF cables for S5 (without transmit diversity)/S6 (without transmit diversity).......8-13 Figure 8-8 Connections of RF cables for S7 (without transmit diversity)/S8 (without transmit diversity).......8-14 Figure 8-9 Typical topology of the DRFUs.......................................................................................................8-15 Figure 9-1 Network structure of the OM system.................................................................................................9-2

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BTS3900A GSM Product Description

Tables

Tables Table 4-1 Monitoring signals of the BTS3900A..................................................................................................4-2 Table 4-2 Functions of the Monitoring System....................................................................................................4-2 Table 7-1 Comparison of Network Topologies....................................................................................................7-3 Table 8-1 RF configuration principles of the BTS3900/BTS3900A....................................................................8-3 Table 8-2 Configuration principles of BBU boards.............................................................................................8-7 Table 8-3 Configuration (1)..................................................................................................................................8-9 Table 8-4 Configuration (2)................................................................................................................................8-10 Table 8-5 Configuration (3)................................................................................................................................8-11 Table 8-6 Configuration (4)................................................................................................................................8-12 Table 8-7 Configuration (5)................................................................................................................................8-13 Table 8-8 Three typical topologies of the DRFUs.............................................................................................8-15 Table 8-9 Typical configuration of the BTS3900/BTS3900A...........................................................................8-16 Table 9-1 Functions of the BTS OM system........................................................................................................9-3 Table 10-1 Operating frequency bands of the BTS3900/BTS3900A.................................................................10-2 Table 10-2 Output power of the DRFU in the BTS3900/BTS3900A................................................................10-2 Table 10-3 Receiver sensitivity of the BTS3900/BTS3900A............................................................................10-3 Table 10-4 Dimensions.......................................................................................................................................10-3 Table 10-5 Weight..............................................................................................................................................10-4 Table 10-6 Specifications of the input power.....................................................................................................10-4 Table 10-7 BTS3900A Power Consumption......................................................................................................10-4 Table 10-8 Surge protection specifications of the BTS3900A...........................................................................10-5 Table 10-9 Power ports of the BTS3900............................................................................................................10-6 Table 10-10 BBU transmission ports.................................................................................................................10-6 Table 10-11 DRFU transmission ports...............................................................................................................10-7 Table 10-12 BTS3900A alarm ports..................................................................................................................10-7 Table 10-13 Other external ports of the BTS3900A..........................................................................................10-7 Table 10-14 Climatic requirements..................................................................................................................10-10 Table 10-15 Requirements for the density of chemically active substances....................................................10-11 Table 10-16 Requirements for mechanical stress.............................................................................................10-12 Table 10-17 Climatic requirements..................................................................................................................10-12 Table 10-18 Requirements for the density of mechanically active substances................................................10-14 Table 10-19 Requirements for the density of chemically active substances....................................................10-14 Table 10-20 Requirements for mechanical stress.............................................................................................10-14 Issue 03 (2008-07-15)

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Tables

Table 10-21 Climatic requirements..................................................................................................................10-15 Table 10-22 Requirements for the density of mechanically active substances................................................10-16 Table 10-23 Requirements for the density of chemically active substances....................................................10-17 Table 10-24 Requirements for mechanical stress.............................................................................................10-17

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BTS3900A GSM Product Description

About This Document

About This Document

Purpose This describes the overview of the BTS3900A GSM. It describes the components, software and hardware structure, subsystems, configuration type, signal flow, clock synchronization, and topologies of the BTS3012. This document also lists the technical specifications of the capacity, RF, engineering, lightning protection, and physical ports of the BTS3900A.

Product Version The following table lists the product version related to this document. Product Name

Product Version

BTS3900A GSM (BTS3900 for shot afterwards)

V300R008

Intended Audience This document is intended for: l

Network planners

l

Field engineers

l

System engineers

Change History For changes in the document, refer to Changes in BTS3900A GSM Production Description.

Organization 1 System Structure of the BTS3900A This describes the BTS3900A. It consists of the BBU3900, the DRFU module, the power distribution box, and RF cabinet. The BBU3900 is installed in the power distribution box. The DRFU module is installed in the RF cabinet. 2 Overview of the BTS3900A This describes the physical structure, logical structure, and software structure of the BTS3900A. Issue 03 (2008-07-15)

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BTS3900A GSM Product Description

About This Document

3 Power Distribution Modes of the BTS3900A The BTS3900A allows the 220 V AC input. 4 Monitoring System of the BTS3900A This describes the monitoring system of the BTS3900A. The monitoring system monitors the power, fans, and environment. 5 Reference Clocks of the BTS3900/BTS3900A The BTS3900/BTS3900A s three types of reference clocks: line clock, BITS clock, and free-run clock. 6 Signal Flow of the BTS3900/BTS3900A The signal flow of the BTS3900/BTS3900A consists of the traffic signal flow and the signaling flow of the BTS. The BTS3900/BTS3900A signal flow is classified into the DL traffic signal flow, UL traffic signal flow, and signaling flow. 7 Topologies of the BTS The BTS s the star, chain, tree, and ring topologies. The BBU and DRFUs multiple network topologies such as star, chain, and ring topologies. In practice, these topologies can be combined. Optimum utilization of the topologies can improve the quality of service and save the investment on the transmission equipment. 8 Configuration of the BTS3900/BTS3900A This describes the configuration principles of the BTS3900/BTS3900A, RF cable connections, RI cable connections, and typical configurations of the DRFU. 9 OM System of the BTS The OM system implements the management, monitoring, and maintenance tasks of the BTS3900. It provides various OM modes and multiple maintenance platforms to meet different maintenance requirements. 10 Technical Specifications of the BTS3900A The technical specifications of the BTS3900A involve capacity specifications, RF specifications, engineering specifications, surge protection specifications, physical ports, environmental requirements, and compliance standards.

Conventions 1. Symbol Conventions The following symbols may be found in this document. They are defined as follows Symbol

Description

DANGER

2

Indicates a hazard with a high level of risk that, if not avoided, will result in death or serious injury.

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BTS3900A GSM Product Description

About This Document

Symbol

Description

WARNING

CAUTION

Indicates a hazard with a medium or low level of risk which, if not avoided, could result in minor or moderate injury. Indicates a potentially hazardous situation that, if not avoided, could cause equipment damage, data loss, and performance degradation, or unexpected results. Indicates a tip that may help you solve a problem or save your time.

TIP

Provides additional information to emphasize or supplement important points of the main text.

NOTE

2. General Conventions Convention

Description

Times New Roman

Normal paragraphs are in Times New Roman.

Boldface

Names of files,directories,folders,and s are in boldface. For example, as root .

Italic

Book titles are in italics.

Courier New

Terminal display is in Courier New.

3. Command Conventions Convention

Description

Boldface

The keywords of a command line are in boldface.

Italic

Command arguments are in italic.

[]

Items (keywords or arguments) in square brackets [ ] are optional.

{x | y | ...}

Alternative items are grouped in braces and separated by vertical bars.One is selected.

[ x | y | ... ]

Optional alternative items are grouped in square brackets and separated by vertical bars.One or none is selected.

{ x | y | ... } *

Alternative items are grouped in braces and separated by vertical bars.A minimum of one or a maximum of all can be selected.

[ x | y | ... ] *

Alternative items are grouped in braces and separated by vertical bars.A minimum of zero or a maximum of all can be selected.

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Convention

Description

Boldface

Buttons,menus,parameters,tabs,window,and dialog titles are in boldface. For example,click OK.

>

Multi-level menus are in boldface and separated by the ">" signs. For example,choose File > Create > Folder .

5. Keyboard Operation Convention

Description

Key

Press the key.For example,press Enter and press Tab.

Key1+Key2

Press the keys concurrently.For example,pressing Ctrl+Alt+A means the three keys should be pressed concurrently.

Key1,Key2

Press the keys in turn.For example,pressing Alt,A means the two keys should be pressed in turn.

6. Mouse Operation

4

Action

Description

Click

Select and release the primary mouse button without moving the pointer.

Double-click

Press the primary mouse button twice continuously and quickly without moving the pointer.

Drag

Press and hold the primary mouse button and move the pointer to a certain position.

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BTS3900A GSM Product Description

1 System Structure of the BTS3900A

1

System Structure of the BTS3900A

This describes the BTS3900A. It consists of the BBU3900, the DRFU module, the power distribution box, and RF cabinet. The BBU3900 is installed in the power distribution box. The DRFU module is installed in the RF cabinet. Figure 1-1 shows the BTS3900A system. Figure 1-1 BTS3900A system architecture

BBU Power cabinet

RF cabinet

DRFU

The BTS3900A consists of the following modules:

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1-2

l

The BBU3900 is used for baseband processing and enables interaction between the BTS and the BSC.

l

The DRFU, the double-transceiver filter unit, performs modulation and demodulation between baseband signals and RF signals, processes data, and combines and divides signals.

l

The power distribution box and RF cabinet provides space for BBU3900 and DRFU and the functions of power distribution, heat dissipation, and surge protection.

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BTS3900A GSM Product Description

2 Overview of the BTS3900A

2

Overview of the BTS3900A

About This Chapter This describes the physical structure, logical structure, and software structure of the BTS3900A. 2.1 Marketing Orientation of the BTS3900A This describes the BTS3900A, an outdoor macro base station developed by Huawei. The BTS3900A mainly consists of the BBU and the DRFUs. Compared with traditional BTSs, the BTS3900A features simpler structure and higher integration. 2.2 Structure of the BTS3900A Cabinet The BTS3900A cabinet consists of the RF cabinet and the APM30 power cabinet. The RF cabinet is categorized into two types: 3RFU cabinet and 6RFU cabinet. For the BTS3900A, the APM30 battery cabinet and APM30 transmission cabinet are optional. The battery cabinet provides longtime backup power, and the transmission cabinet can accommodate the transmission equipment of the . 2.3 Logical Structure of the BTS3900A This describes the logical structure of the BTS3900A. It mainly consists of the BBU and DRFUs. The logical structure of the BTS3900A consists of the RF subsystem, control subsystem, power subsystem, and antenna subsystem. 2.4 Software Structure of the BTS The BTS software consists of the platform software, signaling protocol software, OM software, and data center. The latter three are application software, and the platform software provides for the application software.

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BTS3900A GSM Product Description

2 Overview of the BTS3900A

2.1 Marketing Orientation of the BTS3900A This describes the BTS3900A, an outdoor macro base station developed by Huawei. The BTS3900A mainly consists of the BBU and the DRFUs. Compared with traditional BTSs, the BTS3900A features simpler structure and higher integration. The features of the BTS3900A are as follows: l

It is developed on the basis of the unified BTS platform for Huawei Wireless products and enables the smooth evolution from 2G to 3G.

l

It s the Abis IP/FE interface in hardware and enables Abis over IP through software upgrade if required.

l

It shares the BBU subrack with the DBS3900 to minimize the number of spare parts and to reduce the cost.

l

It can be flexibly installed in a small footprint and can be easily maintained with low cost.

l

It s multiple frequency bands, such as PGSM900, EGSM900, and DCS1800.

l

It s transmit diversity and PBT.

l

It s two-antenna or four-antenna receive diversity to improve the uplink coverage.

l

It s the GPRS and the EGPRS.

l

It s omnidirectional cells and directional cells.

l

It s the hierarchical cell, concentric cell, and micro cell.

l

It s multiple network topologies, such as star networking, tree networking, chain networking, ring networking, and hybrid networking.

l

It s the A5/3, A5/2, and A5/1 encryption and decryption algorithms.

l

It s the cell broadcast SMS and point-to-point SMS.

l

It s synchronization with the BTS3012.

l

A single cabinet s up to 12 TRXs with the maximum cell configuration of S4/4/4.

l

Multiple cabinets at a site up to 72 TRXs with the maximum cell configuration of S24/24/24.

2.2 Structure of the BTS3900A Cabinet The BTS3900A cabinet consists of the RF cabinet and the APM30 power cabinet. The RF cabinet is categorized into two types: 3RFU cabinet and 6RFU cabinet. For the BTS3900A, the APM30 battery cabinet and APM30 transmission cabinet are optional. The battery cabinet provides longtime backup power, and the transmission cabinet can accommodate the transmission equipment of the . The components of the BTS3900A include the DRFU, BBU, DCDU-02, FMUA, FAN unit, and GATM, among which the GATM is optional. Figure 2-1 shows the typical configuration of a BTS3900A cabinet that consists of a 6RFU cabinet and an APM30 power cabinet.

2-2

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2 Overview of the BTS3900A

Figure 2-1 Typical configuration of a BTS3900A cabinet (1)

(1) 6RFU cabinet

(2) DRFU module

(3) FAN unit

(4) FMUA module

(5) DCDU-02 module

(6) GATM module

(7) BBU

(8) PDU

(9) Power subrack (AC/DC)

(10) APM30 power cabinet

-

-

Figure 2-2 shows the typical configuration of a BTS3900A cabinet that consists of a 3RFU cabinet and an APM30 power cabinet.

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BTS3900A GSM Product Description

2 Overview of the BTS3900A

Figure 2-2 Typical configuration of a BTS3900A cabinet (2)

(1) Battery

(2) 3RFU cabinet

(3) DRFU module

(4) FAN unit

(5) FMUA module

(6) DCDU-02 module

(7) GATM module

(8) BBU

(9) PDU

(10) Power subrack (AC/DC)

(11) APM30 power cabinet

-

Figure 2-3 shows the typical configuration of a BTS3900A cabinet that consists of a 3RFU cabinet, a 6RFU cabinet, and an APM30 power cabinet.

2-4

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BTS3900A GSM Product Description

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Figure 2-3 Typical configuration of a BTS3900A cabinet (3) 10 9

8 7 6

5 4 11

3

2 12 1

(1) 6RFU cabinet

(2) DRFU module

(3) FAN unit

(4) FMUA module

(5) DCDU-02 module

(6) GATM module

(7) BBU

(8) PDU

(9) Power subrack (AC/DC)

(10) APM30 power cabinet

(11) Battery

(12) 3RFU cabinet

Figure 2-4 shows the typical configuration of a BTS3900A cabinet that consists of a 6RFU cabinet, an APM30 power cabinet, an APM30 transmission cabinet, and an APM30 battery cabinet.

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Figure 2-4 Typical configuration of a BTS3900A cabinet (4)

(1) 6RFU cabinet

(2) DRFU module

(3) FAN unit

(4) FMUA module

(5) DCDU-02 module

(6) GATM module

(7) BBU

(8) PDU

(9) Power subrack (AC/DC)

(10) APM30 power cabinet

(11) DCDU-03A module

(12) Transmission unit

(13) APM30 transmission cabinet

(14) Battery

(15) APM30 battery cabinet

NOTE

For details about the configurations of the APM30 power cabinet, APM30 transmission cabinet, and APM30 power cabinet, see the APM30 Guide.

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BTS3900A GSM Product Description

2 Overview of the BTS3900A

2.3 Logical Structure of the BTS3900A This describes the logical structure of the BTS3900A. It mainly consists of the BBU and DRFUs. The logical structure of the BTS3900A consists of the RF subsystem, control subsystem, power subsystem, and antenna subsystem. Figure 2-5 shows the logical structure of the BTS3900A. Figure 2-5 Logical Structure of the BTS3900A

RI

RF signals

DRFU

MS Bias-Tee

TMA

…

BSC

E1

GATM

BBU

…

RI Optical transmission device

E1

Control subsystem

DRFU

RF signals

Antenna subsystem

RF subsystem

DCDU-03A

TMA

Bias-Tee

220V AC

PDU

DCDU-02

220V AC

-48V DC

Power subrack (AC/DC)

Battery Power subsystem

The logical subsystems of the BTS3900A are as follows: l

RF subsystem whose functions are implemented by the DRFU

l

Control subsystem whose functions are implemented by the BBU

l

Power subsystem whose functions are implemented by the following modules:

l

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–

PDU

–

Power Subrack (AC/DC)

–

DCDU-02

–

DCDU-03A

–

Battery

Antenna subsystem whose functions are implemented by the following modules: Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

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GATM

–

TMA

–

Antennas

2.4 Software Structure of the BTS The BTS software consists of the platform software, signaling protocol software, OM software, and data center. The latter three are application software, and the platform software provides for the application software. Figure 2-6 shows the software structure of the BTS. Figure 2-6 Software structure of the BTS Signaling protocol software

OM software

Data center

Platform software

Platform Software The platform software provides for the signaling protocol software, OM software, and data center. The functions of the platform software are as follows: l

Timing management

l

Task management

l

Memory management

l

Module management

l

Managing the loading and running of the application software

l

Providing the message forwarding mechanism between modules

l

Tracing massages between modules to facilitate troubleshooting

Signaling Protocol Software The functions of the signaling protocol software are as follows:

2-8

l

Processing the radio network layer protocol

l

Processing the transport network layer protocol, which performs transport data configuration, ALCAP processing, and SAAL processing Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

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Managing the internal logical resources (such as cells and channels) of the BTS and the mapping between physical resources and logical resources

OM Software The OM software works together with the maintenance terminals such as the LMT to maintain the BTS. The functions of the OM software are as follows: l

Equipment management

l

Data configuration

l

Performance management

l

Commissioning management

l

Alarm management

l

Software management

l

Tracing management

l

Security management

l

Backup management

l

Log management

Data Center The data center stores the configuration data of all the modules.

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3 Power Distribution Modes of the BTS3900A

Power Distribution Modes of the BTS3900A The BTS3900A allows the 220 V AC input. Figure 3-1 shows the power distribution of the BTS3900A. Figure 3-1 Power distribution of the BTS3900A BTS3036A power system

220V AC -48V DC

Power subrack (AC/DC)

Battery

FMUA DCDU-02

220V AC PDU

DRFU0-2 AFMU BBU GATM

DCDU-02

DRFU3-5

DCDU-03A

-48V DC

The description of the power distribution is as follows:

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3 Power Distribution Modes of the BTS3900A

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BTS3900A GSM Product Description

l

When the external 220 V AC is used, the PDU leads the 220 V AC into the PSU (AC/DC) in the power subrack (AC/DC). The PSU converts the 220 V AC to -48 V DC, and then transmits the converted DC back to the PDU.

l

The PDU distributes the -48 V DC. Part of the -48 V DC is directly distributed to certain modules. Part of the -48 V DC is distributed to the DCDU-02. The DCDU-02 then distributes the -48 V DC to certain modules.

l

When the APM30 transmission cabinet is configured, the PDU leads the -48 V DC to the DCDU-03A in the transmission cabinet. The DCDU-03A then distributes the -48 V DC to certain modules.

l

The power subrack (AC/DC) performs the charging and discharging of the batteries.

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BTS3900A GSM Product Description

4 Monitoring System of the BTS3900A

4

Monitoring System of the BTS3900A

This describes the monitoring system of the BTS3900A. The monitoring system monitors the power, fans, and environment.

Description of Monitoring Ports Figure 4-1 shows the monitoring ports of the BBU. Figure 4-1 Monitoring ports of the BBU Monitoring signal bus 0 Monitoring signal bus 1 Alarm signal 0 to 3 Alarm signal 4 to 7 UELP TX0

INSIDE

RI0 1 RX0 TX1 RX1

TX2

2

R12 3 RX2 TX3

RX3 TX4

4

EXT-ALM1

EX T-ALM0 MON1

MON0

EXT-ALM1

EXT-ALM0 MON1

MON0

R14 5 RX4 TX5 RX5 LIU0 LIU1

OUTSIDE

LIU2 LIU3 R11

TX

GTMU ETH

FE0

RX

FE1

R13

R15 RUN ALM ACT

USBTEST

E1/T1

RST PWR

RUN

Alarm signal 12 to 15 Alarm signal 8 to 11 Monitoring signal bus 1 Monitoring signal bus 0 l

The BBU can provides up to two RS485 bus ports and 16 Boolean inputs.

l

The modules on the RS485 bus 0 cannot substitute those on the RS485 bus 1.

l

If two MPUs with the same DIP switch setting are configured, they cannot be installed on the same bus.

Components of the Monitoring System Figure 4-2 shows the components of the BTS3900A system.

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BTS3900A GSM Product Description

4 Monitoring System of the BTS3900A

Figure 4-2 Structure of the monitoring system BBU RS485 bus0

DCDU-02 1 GATM2

DCDU-02 2

FMUA2 ……

FMUA1 FAN1

FAN2

BSC RS485 bus1 EMUA

PMU

AFMU1

Door sensor of the power cabinet

GATM1

Door sensor of the battery cabinet

Boolean0-15 DCDU-03A

AFMU2

Door sensor of the transmission cabinet

interface

NOTE

bus0 is the RS485 bus 0; bus1 is the RS485 bus 1.

Table 4-1 describes the monitoring signals of the BTS3900A. Table 4-1 Monitoring signals of the BTS3900A Unit

Address

FMUA (mandatory)

bus0

GATM2 (optional)

bus0

PMU (mandatory)

bus1

AFMU (mandatory)

bus1

GATM1 (optional)

bus1

FMUA (optional)

bus1

Functions of the Monitoring System Table 4-2 shows the components of the monitoring system. Table 4-2 Functions of the Monitoring System Unit

Control

FAN

l

Fan failure monitoring

l

Adjust the fan speed

l

Temperature and fan speed monitoring

GATM 4-2

Reports the RET control alarm signals. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

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BTS3900A GSM Product Description

4 Monitoring System of the BTS3900A

Unit

Control

EMUA

l

Communicates with the central processing unit through the two RS485 ports

l

Input voltage monitoring

l

Provides independent 12 V DC/24 V DC temperature and humidity sensor ports.

l

Provides Boolean input signal monitoring ports, and connects to the Boolean monitoring signals in dry mode or OC mode.

l

Provides six external Boolean output control ports in relay node mode.

l

Communicates with the central processing unit through the RS232/RS422 serial port.

l

Manages the power system and charging and discharging of batteries.

l

It reports water alarms, smokes alarms, door control alarms, standby Boolean alarms, ambient humidity and temperature, battery temperature, and standby analog values.

l

Power distribution monitoring and alarm reporting

PMU

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DCDU-02

Provides the monitoring of surge protection failure

FMUA

l

Collecting environment alarm information in the cabinet. The environment alarm is classified into temperature alarm, humidity alarm, smoke alarm, water immersion alarm, and door status alarm.

l

Collects surge protection alarm information of the DC power distribution unit.

l

Monitors the operating status of fans. The fan speed can be adjusted based on the temperature or adjusted by the central processing unit.

l

Stops the rotation of the fans when the ambient temperature is low.

l

Temperature monitoring and reporting

l

RS485 port cascading and extension

l

The FMUAs can be cascaded.

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BTS3900A GSM Product Description

5

5 Reference Clocks of the BTS3900/BTS3900A

Reference Clocks of the BTS3900/BTS3900A The BTS3900/BTS3900A s three types of reference clocks: line clock, BITS clock, and free-run clock.

Line Clock The BBU3900 directly extracts clock signals from the E1/T1 interface. Then, the BBU exports the precise 2 MHz and 8 kHz clocks after frequency dividing, phase locking, and phase adjusting. The 2 MHz and 8 kHz clocks are used for frame synchronization and bit synchronization in the BTS3900/BTS3900A.

BITS Clock The BBU3900 s the BITS clock mode by providing a port for the 2.048 MHz BITS clock.

Free-Run Clock When the external reference clocks are unavailable, the oven controlled crystal oscillator (OCXO) on the GTMU of the BBU3900 provides the 13 MHz clock to ensure the normal operation of the BTS.

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5-1

BTS3900A GSM Product Description

6 Signal Flow of the BTS3900/BTS3900A

6

Signal Flow of the BTS3900/BTS3900A

The signal flow of the BTS3900/BTS3900A consists of the traffic signal flow and the signaling flow of the BTS. The BTS3900/BTS3900A signal flow is classified into the DL traffic signal flow, UL traffic signal flow, and signaling flow.

DL Traffic Signal Flow The DL traffic signal flow is transmitted from the BSC to the MS through the BTS3900/ BTS3900A. In the BTS3900/BTS3900A, the BBU and DRFUs work together to process the DL traffic signals. Figure 6-1 shows the DL traffic signal flow of the BTS3900/BTS3900A. Figure 6-1 DL traffic signal flow Downlink traffic signal flow

1 E1

BBU

DBUS CBUS FHBUS 2 RI

3 RF signals

DRFU

3 RF signals

MS

…

BSC

DRFU

DRFU

3 RF signals

The DL traffic signal flow is as follows: 1.

The BSC sends E1 signals to the BBU through E1 or optical cables.

2.

After receiving the E1 signals, the BBU processes the E1 signals as follows: (1) Extracts clock signals from the E1 signals (2) Configures the BTS system based on the data configuration on the OML (3) Encapsulates the E1 data in the format of the RI frame, and then transmits the data to the DRFU through the RI signal cable

3. Issue 03 (2008-07-15)

After receiving the signals, the DRFU processes the signals as follows: Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

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BTS3900A GSM Product Description

6 Signal Flow of the BTS3900/BTS3900A

(1) Decapsulates the high-speed RI frames to obtain the baseband signals (2) Transmits the baseband signals to the relevant operation units for encapsulation and interleaving (3) Converts the digital signals into the analog signals and modulates the analog signals into RF signals (4) Combines or divides the RF signals based on its own configuration (5) Transmits the combined or divided signals to the antenna subsystem

UL Traffic Signal Flow Opposite to the DL traffic signal flow, the UL traffic signal flow is transmitted from the MS to the BSC through the BTS3900/BTS3900A. In the BTS3900/BTS3900A, the BBU and DRFUs work together to process the UL traffic signals. Figure 6-2 shows the UL traffic signal flow. Figure 6-2 UL traffic signal flow Uplink traffic signal flow

1 E1

BBU

DBUS CBUS FHBUS 2 RI

3 RF signals

DRFU

3 RF signals

MS

…

BSC

DRFU

DRFU

3 RF signals

The UL traffic signal flow is as follows: 1.

The antenna receives the signals sent from the MS. If the TMA is configured, the received signals are amplified by the TMA and then transmitted to the DRFU through the feeder.

2.

After receiving the UL signals, the DRFU processes the signals as follows: (1) Divides the UL signals received from the antenna, Rx1 in, or Rx2 in (2) Converts the divided analog signals into the digital signals to obtain the baseband signals (3) Transmits the baseband signals to the relevant operation units for decryption and deinterleaving (4) Encapsulates the processed data in the format of the RI frame, and then transmits the data to the BBU through the RI signal cable

3.

After receiving the signals, the BBU processes the signals as follows: (1) Decapsulates the high-speed RI frames to obtain the baseband signals (2) Encapsulates the baseband signals in the format of the E1 frame, and then transmits the signals to the BSC through the E1 cable or the optical cable

6-2

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BTS3900A GSM Product Description

6 Signal Flow of the BTS3900/BTS3900A

Signaling Flow This describes the BTS3900/BTS3900A signaling flow on the Abis interface. The BBU serves as the control unit and works with DRFU to process the signaling. Figure 6-3 shows the signaling flow. Figure 6-3 Signaling flow Signaling flow DRFU

1 E1

BBU

DBUS CBUS FHBUS 2 RI

DRFU

…

BSC

DRFU

The signaling flow is as follows: 1.

The signaling data received from the BSC is transmitted to the BBU through the Abis interface.

2.

The BBU encapsulates the signaling data in the format of the RI frame, and then transmits the signaling data to the DRFU through the RI signal cable.

3.

The DRFU decapsulates the RI signals into the baseband signals, transmits the baseband signals to the relevant operation units for processing.

4.

The BBU encapsulates the data of its own status in the format of the RI frame, and then transmits the data to the DRFU through the RI signal cable.

5.

The BBU decapsulates the received RI signals to obtain the baseband signals.

6.

The BBU obtains the status of the BTS by analyzing the baseband signals. Then, the BBU transmits the information on the BTS status to the BSC through the Abis interface.

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BTS3900A GSM Product Description

7 Topologies of the BTS

7

Topologies of the BTS

The BTS s the star, chain, tree, and ring topologies. The BBU and DRFUs multiple network topologies such as star, chain, and ring topologies. In practice, these topologies can be combined. Optimum utilization of the topologies can improve the quality of service and save the investment on the transmission equipment.

Network Topology Figure 7-1 shows the star topology of the BTS. Figure 7-1 Star topology of the BTS BSC

BTS

BTS BTS

Figure 7-2 shows the chain topology of the BTS. Figure 7-2 Chain topology of the BTS

BSC

BTS

BTS

BTS

Figure 7-3 shows the tree topology of the BTS. Issue 03 (2008-07-15)

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BTS3900A GSM Product Description

7 Topologies of the BTS

Figure 7-3 Tree topology of the BTS

BTS

BTS

BTS

BSC

BTS

Figure 7-4 shows the ring topology of the BTS. Figure 7-4 Ring topology of the BTS A

B

C

BTS0 BSC

BTS1

BTS2

D

Comparison of Network Topologies Table 7-1 describes the comparison of different network topologies.

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BTS3900A GSM Product Description

7 Topologies of the BTS

Table 7-1 Comparison of Network Topologies Networking Mode

Application Scenario

Advantage

Star topology

Applies to common areas, especially densely populated areas, such as cities.

l

Simple networking

l

Easy project implementation

l

Convenient maintenance

l

Flexible capacity expansion

l

High network reliability

Chain topology

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Applies to sparsely populated areas in strip-like terrain, such as areas along highways and railway tracks.

Reduces costs in transmission equipment, construction, and transmission link lease.

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Limitations Compared with other topologies, the star topology requires more transmission cables.

l

As signals through many nodes, the transmission reliability in the chain topology is reduced.

l

The faults in the current-level BTSs may affect the lower-level BTSs.

l

The number of levels in a chain network should not exceed five.

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BTS3900A GSM Product Description

7 Topologies of the BTS

7-4

Networking Mode

Application Scenario

Advantage

Limitations

Tree topology

Applies to areas where network structures, site distribution, and subscriber distribution are complicated, for example, an area where large-scale coverage overlaps hot spot or smallscale coverage.

Requires fewer transmission cables compared with the star topology.

l

As signals through many nodes, the transmission reliability is reduced. This makes it difficult for maintenance and engineering.

l

The faults in the current-level BTSs may affect the lower-level BTSs.

l

Capacity expansion is difficult.

l

The number of levels in the tree should not exceed five.

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BTS3900A GSM Product Description

7 Topologies of the BTS

Networking Mode

Application Scenario

Advantage

Limitations

Ring topology

Applies to common scenarios. Due to its strong self-healing capability, the ring topology is preferred if permitted by the routing.

If there is a breaking point in the ring, the ring breaks into two chains at the breaking point automatically. In this way, the BTSs preceding and following the breaking point can work normally despite the breaking point; thus improving the robustness of the system. For example, BTS0, BTS1, and BTS2 are sequentially connected to form a ring. When B fails, the BTS topology preceding B remains unchanged, and the BTSs following B form a chain (anticlockwise), as shown in Figure 7-5.

In the ring topology, there is always a link section that does not transfer data.

Figure 7-5 Regroupment for disconnection in the ring topology Clockwise A BTS0 B

BSC D

C BTS2

BTS1 Anticlockwise

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BTS3900A GSM Product Description

8

8 Configuration of the BTS3900/BTS3900A

Configuration of the BTS3900/BTS3900A

About This Chapter This describes the configuration principles of the BTS3900/BTS3900A, RF cable connections, RI cable connections, and typical configurations of the DRFU. 8.1 Configuration Principles of the BTS3900/BTS3900A The BTS3900/BTS3900A uses DRFU transceiver module and DRFU built-in duplexer. A single cabinet provides up to 12 TRXs with the maximum cell configuration of S4/4/4 and s the dual-band application. In the BTS3900/BTS3900A, the antenna subsystem, DRFUs, and BBU need to be configured. 8.2 RF Signal Cable Connections of the DRFU One end of the RF jumper is connected to the RF port on the DRFU and the other end is connected to the feeder. You can determine the appropriate RF ports based on the actual configuration modes. 8.3 Topology of DRFUs Connected by RI Cables The DRFUs various network topologies: star, chain, and ring. 8.4 Typical Configuration of the BTS3900/BTS3900A This lists the number of components required for the cell configuration of S1/1/1, S2/2/2, S4/4/4, S6/6/6, S1/1/1 + S3/3/3, S2/2/2 + S2/2/2, and S4/4/4 + S4/4/4.

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8-1

8 Configuration of the BTS3900/BTS3900A

BTS3900A GSM Product Description

8.1 Configuration Principles of the BTS3900/BTS3900A The BTS3900/BTS3900A uses DRFU transceiver module and DRFU built-in duplexer. A single cabinet provides up to 12 TRXs with the maximum cell configuration of S4/4/4 and s the dual-band application. In the BTS3900/BTS3900A, the antenna subsystem, DRFUs, and BBU need to be configured.

Basic Configuration Principles l

Smooth upgrade of configuration. If multiple types of hardware configurations meet the requirements for configuring the parameters in network planning, the configuration mode that implements the smooth upgrade is preferred.

l

The BTS3900/BTS3900A solution is recommended in S4/4/4 cell configuration or lower configurations. When multiple antennas are permitted, the BTS3900/BTS3900A solution can be applied in S8/8/8 and S4/4/4+S4/4/4 dual-band cell configurations.

l

Wide coverage. The DRFU s wide coverage. The DRFU can work in PBT, transmit diversity, or 4-way receive diversity mode in configurations lower than S2.

Antenna Configuration Principles l

One antenna can serve up to two DRFUs to the S4/4/4 configuration.

l

By default, the receive diversity is adopted in the GSM. That is, two feeder (two single antennas or one dual-polarized antenna) must be configured in a cell.

l

When one internal combination is allowed, the cell configuration of S4 and lower configurations use a single antenna, the configurations of S5 to S8 use a double antenna, and the configurations of S8 to S12 use a triple antenna.

l

Each sector of the BTS must be configured with the minimum number of antennas.

l

For the 2-antenna receive diversity, each sector has two antenna channels; for the 4-antenna receive diversity, each sector has four antenna channels.

RF Configuration Principles Table 8-1 describes the RF configuration principles of the BTS3900/BTS3900A.

8-2

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

Table 8-1 RF configuration principles of the BTS3900/BTS3900A Principle

Description

Configuration principles of the DRFU ports

l

ANT1 and ANT2 are the TX ports of the duplexer. They are connected to jumpers.

l

Rx1 in, Rx1 out, Rx2 in, and Rx2 out are used for the interconnection between the DRFU modules. When the two TRXs provided by the DRFU belong to the same cell, both Rx1 in and Rx2 in can be the input ports for receive diversity of the two TRXs. When the two TRXs provided by the DRFU belong to different cells, Rx1 in is the input port for RX diversity of TRX 1; Rx2 in is the input port for receive diversity of TRX 2.

l

RI_0 and RI_1 are the ports for high speed signal cables. They are connected to RI ports on the BBU.

l

Star topology is adopted between the BBU and DRFUs. The DRFUs and the high-speed interfaces on the BBU have a one-toone mapping relationship. That is, if DRFU slot 1 is idle, RI port 1 on the BBU is also idle.

l

A single cabinet s the maximum cell configuration of S4/4/4.

Configuration principles of a single cabinet

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Example In the S3/3 configuration, three DRFUs need to be configured. The TRXs provided by the middle DRFU belong to different cells. Then, the Rx1 in port on the middle DRFU is the input port, which belongs to the first cell, for receive diversity of TRX 1. The input port for RX main diversity of TRX 2 is ANT1. The Rx2 in port is the input port, which belongs to the second cell, for receive diversity of TRX 2. The input port for RX main diversity of TRX 2 is ANT2.

None

8-3

BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

Principle

Description

Configuration principles of multiple cabinets

l

When star and ring topologies are adopted between the BBU and DRFUs, three levels of DRFUs in a ring can be connected to one BBU. That is, one BBU s 3 x 3 = 9 DRFUs.

l

When star and chain topologies are adopted between the BBU and DRFUs, three levels of DRFUs on a chain can be connected to one BBU. That is, one BBU s 6 x 3 = 18 DRFUs.

l

The non-combination configuration is recommended for the DRFU to avoid the power loss in combination and to reduce the power consumption of the BTS.

l

If combination is required, the cavity combiner must be configured outside the DRFU and one combination is recommended.

l

A single DRFU does not the S1/1 application; however, three DRFUs the S3/3 application.

l

When the DRFU works in transmit PBT, transmit diversity, or 4-way receive diversity mode, a DRFU provides only one TRX. Therefore, the actual configuration does not involve the mode of configuring two TRXs in one sector.

Non-combination in the transmit channel

Configuring two TRXs in one sector

8-4

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Example None

None

For example, for a site in S5/4/7 cell configuration, nine DRFUs are installed meeting the requirements of S6/4/8 cell configuration but data is still configured in S5/4/7 cell configuration.

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

Principle

Description

Number of DRFUs

l

l

TRX allocation in double antenna mode

Issue 03 (2008-07-15)

When the number of TRXs of the site is less than 12, an odd number of TRXs can be configured for a cell. Number of DRFUs = round up [(Number of TRXs + Number of S1 cells) ÷ 2]

Example l

S3/3/3: Number of DRFUs = round up (9 ÷ 2) = 5; S1/2/3: Number of DRFUs = round up [(6 + 1) ÷ 2] = 4.

l

After two TRXs are configured in one sector, the S5/5/5 configuration is S6/6/6. Number of DRFUs = (6 + 6 + 6) ÷ 2 = 9.

l

In S3/5/4, S5 can be divided into S3 + S2. Then, the cell configuration is S3/(3/2)/ 4.

l

In S2/5/5, the first S5 is divided into S2 + S3; the second S5 is divided into S3 + S2. Then, the cell configuration is S2/(2/3)/ (3/2).

When the number of TRXs of the site is greater than 12, two TRXs should be configured for a cell. Number of DRFUs = round up (Number of TRXs after two TRXs are configured in one sector ÷ 2)

After TRX allocation, the cells with the odd number of TRXs are adjacent cells. l

S5 = S3 + S2 or S5 = S2 + S3

l

S6 = S4 + S2 or S6 = S3 + S3

l

S7 = S4 + S3 or S7 = S3 + S4

l

S8 = S4 + S4

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8-5

BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

Principle

Description

Configuring double TRXs in a site

l

If the number of DRFUs is less than or equal to 6 in a double-TRX site, the two TRXs are configured in the same cabinet. If the number of DRFUs of the two bands is less than 3, the 900 MHz DRFUs are installed in the 3 slots on the left, and the 1800 MHz DRFUs are installed in the 3 slots on the right.

l

When two RF cabinets are configured and the number of DRFUs of each band is less than 6, the 900 MHz DRFUs are installed in the first cabinet and the 1800 MHz DRFUs are installed in the second cabinet. The DRFUs are installed in the slots according to the typical S4/4/4 configuration. When two RF cabinets are configured and the number of DRFUs of one band is greater than 6, the band with fewer DRFUs shares the cabinet with the other band. Mixed configuration of DRFUs are not allowed.

Example None

NOTE

In the mode of configuring two TRXs in one sector, a DRFU belongs to only one sector.

Configuration Principles of the BBU

8-6

l

One BBU provides six RI ports. In the chain topology, a single BBU can up to 36 TRXs.

l

Figure 8-1 shows the BBU slots.

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

Figure 8-1 Slots of the BBU FAN

l

0 1

4

2

6

3

7

UPEU/UEIU

5

UPEU

Table 8-2 describes the RF configuration principles of the BBU. Table 8-2 Configuration principles of BBU boards Board or Module

Description

BSBC

1 pcs must be configured.

UBFA

1 pcs must be configured.

UPEU

l

1 pcs must be configured.

l

1 pcs can be configured when the backup power is required. The UPEU, however, cannot be configured with the UEIU at the same time.

l

1 pcs must be configured when three or more than three BTS3900 cabinets are configured.

l

In the outdoor application, 1 pcs must be configured when two or more than two APM30 power cabinets are configured.

l

1 pcs must be configured.

l

The GTMU occupies slot 5 and slot 6.

l

Not required in the BTS3900

l

1 pcs must be configured in the BTS3900A. The UELP occupies slot 0.

UEIU

GTMU

UELP

8.2 RF Signal Cable Connections of the DRFU One end of the RF jumper is connected to the RF port on the DRFU and the other end is connected to the feeder. You can determine the appropriate RF ports based on the actual configuration modes.

RF Cable Connections of the DRFU l

The transmit mode and antenna mode described in the following list are set on the BSC side.

l

The RF cables differ from each other in colors. Figure 8-2 shows the mapping between the RF signal cables and their colors.

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8-7

8 Configuration of the BTS3900/BTS3900A

BTS3900A GSM Product Description

Figure 8-2 Mapping between the RF signal cables and their colors Feeder jumper RI signal cable RF jumper between the cascaded DRFUs

8-8

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

S1 Without Transmit Diversity, S1 with Transmit Diversity, and S2 Without Transmit Diversity The S1 without transmit diversity, S1 with transmit diversity, and S2 without transmit diversity use the configuration of one DRFU and one dual-polarized antenna. Table 8-3 describes the related configurations. Table 8-3 Configuration (1) Typical Configuration Mode

Transmit Mode

Antenna Mode

Cable Configuration

S1 without transmit diversity

Transmit independency or combining

Double Antenna

l

S1 with transmit diversity

Transmit diversity

Double Antenna

S2 without transmit diversity

Transmit independency or combining

Double Antenna

l

One DRFU module One dualpolarized antenna

Figure 8-3 shows the cable connections. Figure 8-3 Connections of RF cables for S1 (without transmit diversity/with transmit diversity)/ S2 (without transmit diversity)

Antenna

UELP INSIDE

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OUTSIDE

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

S2 with PBT, S3 Without Transmit Diversity, and S4 Without Transmit Diversity The S2 with PBT, S3 without transmit diversity, and S4 without transmit diversity use the configuration of two DRFUs and one dual-polarized antenna. Table 8-4 describes the related configurations. Table 8-4 Configuration (2) Typical Configuration Mode

Transmit Mode

Antenna Mode

Cable Configuration

S2 with PBT

PBT

Single Antenna Double Receiver

l

Two DRFUs

l

One dualpolarized antenna

S3 without transmit diversity

Transmit independency or combining

Single Antenna Double Receiver

S4 without transmit diversity

Transmit independency or combining

Single Antenna Double Receiver

Figure 8-4 shows the cable connections. Figure 8-4 Connections of RF cables for S2 (PBT)/S3 (without transmit diversity)/S4 (without transmit diversity)

Antenna

UELP INSIDE

8-10

OUTSIDE

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

S2 (4-Way Receive Diversity) The S2 with 4-way receive diversity uses the configuration of two DRFUs and two dualpolarized antennas. The related configuration is as follows: l

Receive mode: 4-Way Receive Diversity

l

Set the antenna mode to Double Antenna 4-Way Receiver.

Figure 8-5 shows the cable connections. Figure 8-5 Connections of RF signal cables for S2 (4-way receive diversity)

Antenna

Antenna

UELP INSIDE

OUTSIDE

S2 with Transmit Diversity and S4 with Transmit Independency The S2 with transmit diversity and S4 with transmit independency use the configuration of two DRFUs and two dual-polarized antennas. Table 8-5 describes the related configurations. Table 8-5 Configuration (3) Typical Configuration Mode

Transmit Mode

Antenna Mode

Cable Configuration

S2 (with transmit diversity)

Transmit diversity

Double Antenna

l

Two DRFUs

l

S4 with transmit independency

Transmit independency or combining

Two dualpolarized antennas

Double Antenna

Figure 8-6 shows the cable connections. Issue 03 (2008-07-15)

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

Figure 8-6 Connections of RF cables for S2 (transmit diversity)/S4 (transmit independency)

Antenna

Antenna

UELP INSIDE

OUTSIDE

S5 Without Transmit Diversity and S6 Without Transmit Diversity The S5 without transmit diversity and S6 without transmit diversity use the configuration of three DRFUs and two dual-polarized antennas. Table 8-6 describes the related configurations. Table 8-6 Configuration (4) Typical Configuration Mode

Transmit Mode

Antenna Mode

S5 without transmit diversity

Transmit independency or combining

l

S6 without transmit diversity

8-12

Transmit independency or combining

DRFU0: Single Antenna Double Receiver

l

DRFU1: Single Antenna Double Receiver

l

DRFU2: Double Antenna

l

DRFU0: Single Antenna Double Receiver

l

DRFU1: Single Antenna Double Receiver

l

DRFU2: Double Antenna

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Cable Configuration l

Three DRFUs

l

Two dualpolarized antennas

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8 Configuration of the BTS3900/BTS3900A

Figure 8-7 shows the cable connections. Figure 8-7 Connections of RF cables for S5 (without transmit diversity)/S6 (without transmit diversity)

Antenna

Antenna

UELP INSIDE

OUTSIDE

S7 Without Transmit Diversity and S8 Without Transmit Diversity The S7 without transmit diversity and S8 without transmit diversity use the configuration of four DRFUs and two dual-polarized antennas. Table 8-7 describes the related configurations. Table 8-7 Configuration (5) Typical Configuration Mode

Transmit Mode

Antenna Mode

Cable Configuration

S7 without transmit diversity

Transmit independency or combining

Single Antenna Double Receiver

l

Four DRFUs

l

S8 without transmit diversity

Transmit independency or combining

Single Antenna Double Receiver

Two dualpolarized antennas

Figure 8-8 shows the cable connections.

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

Figure 8-8 Connections of RF cables for S7 (without transmit diversity)/S8 (without transmit diversity)

Antenna

Antenna

UELP INSIDE

OUTSIDE

8.3 Topology of DRFUs Connected by RI Cables The DRFUs various network topologies: star, chain, and ring. Figure 8-9 shows the typical topology of the DRFUs.

8-14

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8 Configuration of the BTS3900/BTS3900A

Figure 8-9 Typical topology of the DRFUs

Chain connection

Star connection

Ring connection

UELP INSIDE

OUTSIDE

NOTE

When the chain topology is used, a maximum of three levels of DRFUs can be connected to one BBU.

Table 8-8 describes the three typical topologies of the DRFUs. Table 8-8 Three typical topologies of the DRFUs Topology

Advantage

Star

l

Simple networking

l

Easy project implementation

l

Convenient maintenance

l

Flexible capacity expansion

l

High network reliability

Chain

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s the maximum configuration

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Disadvantage Compared with other topologies, the star topology requires more transmission cables.

l

Low network reliability

l

Requires a large quantity of transmission cables

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BTS3900A GSM Product Description

8 Configuration of the BTS3900/BTS3900A

Topology

Advantage

Disadvantage

Ring

High network reliability

Complicated network structure

8.4 Typical Configuration of the BTS3900/BTS3900A This lists the number of components required for the cell configuration of S1/1/1, S2/2/2, S4/4/4, S6/6/6, S1/1/1 + S3/3/3, S2/2/2 + S2/2/2, and S4/4/4 + S4/4/4. Table 8-9 lists the typical configuration of the BTS3900/BTS3900A. Table 8-9 Typical configuration of the BTS3900/BTS3900A Typical Configuratio n

Number of DRFUs

Number of Antennas

Number of Other Components of the BTS3900

S1/1/1

3

3

l

S2/2/2

3

3

S4/4/4

6

S2/2/2 + S2/2/2

6

l

BTS3900 cabinet: 1 FAN: 1

3

l

DCDU-01: 1

6

l

BBU: 1

l

PDU: 1

l

Power subrack (DC/DC): 1 (+24 V DC input) Power subrack (AC/DC): 1 (220 V AC input) GATM: optional

l

BBU: 1

l

GATM: optional

l

RF cabinet: 1

l

FMUA: 1

l

DCDU-02: 2

l

FAN: 2

l

APM30 power cabinet: 1

l

BTS3900 cabinet: 2 FAN: 2

l

l

DCDU-01: 2

Power subrack (AC/DC): 1

l

BBU: 1

l

PDU: 1

l

Power subrack (DC/DC): 1 (+24 V DC input) Power subrack (AC/DC): 1 (220 V AC input) GATM: optional

l

BBU: 1

l

GATM: optional

l

RF cabinet: 2

l

FMUA: 2

l

DCDU-02: 4

l

FAN: 4

l

l

S6/6/6

9

6

S1/1/1 + S3/3/3

8

6

S4/4/4 + S4/4/4

12

6

l

l

l

8-16

Number of Other Components of the BTS3900A

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l

APM30 power cabinet: 1

l

Power subrack (AC/DC): 1

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8 Configuration of the BTS3900/BTS3900A NOTE

The number of antennas in a dual-band network is applicable to the configuration that the two bands do not share the antennas. When the two bands share the antennas, the number of antennas in the dual-band network is calculated in the same way as that in the single-band network.

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8-17

BTS3900A GSM Product Description

9 OM System of the BTS

9

OM System of the BTS

About This Chapter The OM system implements the management, monitoring, and maintenance tasks of the BTS3900. It provides various OM modes and multiple maintenance platforms to meet different maintenance requirements. 9.1 OM Modes of the BTS The OM modes of the BTS consist of the Site Maintenance Terminal mode, Local Maintenance Terminal mode, and centralized network management mode. 9.2 OM Functions of the BTS The OM functions of the BTS3900 consist of equipment management, software management, configuration management, service management, performance management, security management, alarm management, and environment monitoring.

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BTS3900A GSM Product Description

9 OM System of the BTS

9.1 OM Modes of the BTS The OM modes of the BTS consist of the Site Maintenance Terminal mode, Local Maintenance Terminal mode, and centralized network management mode. Figure 9-1 shows the components of the BTS OM system. Figure 9-1 Network structure of the OM system iManager M2000

Site Maintenance Terminal

BTS VLAN BSC

Site Maintenance Terminal

BTS LMT

You can maintain the BTS3900 in the following modes: l

Site Maintenance Terminal mode: The Site Maintenance Terminal is locally connected to the BTS through the Ethernet. You can use the Site Maintenance Terminal to operate and maintain the site, cell, Radio Carrier (RC), Baseband Transceiver (BT), channel, and board. In this mode, only one BTS can be maintained at a time.

l

LMT mode: The LMT is used to maintain the BTS through the OM links on the Abis interface, which is an interface between the BSC and the BTS. The LMT communicates with the BSC through a LAN. You can use the LMT to operate and maintain the site, cell, RC, channel, and board. This mode is used in configuring and modifying the data of the BSC and BTS.

l

Centralized network management mode: The Huawei iManager M2000 is used to maintain the BTS through the OM network. The M2000 can operate and maintain the site, cell, channel, and board. In this mode, multiple BTSs can be maintained at a time.

Table 9-1 lists the functions of the BTS OM system.

9-2

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BTS3900A GSM Product Description

9 OM System of the BTS

Table 9-1 Functions of the BTS OM system Maintenance Object

Maintenance Items for the Site Maintenance Terminal

Maintenance Items for the LMT

Maintenance Items for the M2000

Maintaining sites

Viewing resources

ing the BTS software

Managing the reporting of performance data

Performing site Opstart Testing the RF specifications Providing site management rights Forcibly loading software Activating software Resetting a site hierarchically Testing sites Monitoring environment Testing transport performance Querying the ring topology parameters Querying the bar codes Querying alarm delay time Managing the site board parameters Providing the optical transmission board command console Testing the E1 BER Managing the RET antenna

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Configuring the BTS software

Managing NE s

Loading the BTS software

Monitoring NE status

Activating BTS software

Centralizing management

Querying BTS running status Querying BTS attributes Resetting BTSs hierarchically Browsing the BTS initialization progress

Monitoring NE performance Monitoring NEs in real time Viewing file information of NEs

Querying the software version running on the BTS Testing the BTS Monitoring BTS resources Monitoring environment Viewing BTS logs Testing transport performance Performing the BTS hard reset Providing the optical transmission board command console Querying the temperature in the equipment room Maintaining the ring network

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9 OM System of the BTS

Maintenance Object

Maintenance Items for the Site Maintenance Terminal

Maintenance Items for the LMT

Maintenance Items for the M2000

Maintaining cells

Managing cell attributes

Modifying the istrative state

Managing cell extended attributes

Performing force handovers

Viewing the statistics of the cell distribution

Performing cell Opstart Performing cell performance tests Modifying the istrative state of the cell

Sending cell system messages Querying frequency scanning Configuring frequency scanning

Viewing the basic configuration of the cell Viewing the configuration of the CCH of a cell Viewing neighbor cells Monitoring the configuration of an object Collecting the alarms of the monitored object Blocking/unblocking cells

Maintaining BT

Performing BT Opstart

-

-

Re-Initializing a BT Setting the TRX full power emission Modifying the istrative state of the BT Performing BT tests Viewing the channel status

9-4

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BTS3900A GSM Product Description

9 OM System of the BTS

Maintenance Object

Maintenance Items for the Site Maintenance Terminal

Maintenance Items for the LMT

Maintenance Items for the M2000

Maintaining RC

Managing RC attributes

Modifying the istrative state

-

Managing RC extended attributes

Testing the RC performance

Performing RC Opstart Re-Initializing an RC Modifying the istrative state of the RC Viewing the automatic power correction type

Viewing the power mode of the RC Viewing the automatic power correction type Conducting loopback tests on the RC Testing idle timeslots Testing codec modes Resetting RCs Controlling the RC power

Obtaining the power mode of the RC Maintaining channels

Managing channel attributes

Modifying the istrative state

Performing channel Opstart

Monitoring the channel status

Modifying the istrative state of the channel

Monitoring the channel interference band

Performing loopback tests

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Viewing the basic configuration of the cell Viewing the configuration of the CCH of a cell

Performing the loopback test on a channel Testing the channel performance

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BTS3900A GSM Product Description

9 OM System of the BTS

Maintenance Object

Maintenance Items for the Site Maintenance Terminal

Maintenance Items for the LMT

Maintenance Items for the M2000

Maintaining boards

Configuring racks

Querying the software version running on the board

Viewing NE board reports

Configuring boards Managing boards

Querying the matching of boards

Querying inventory data

Querying bar codes of boards Querying board information Maintaining clocks Resetting boards Performing switchover of boards Querying the power module status Resetting smoke alarms Managing batteries Setting/Querying power module parameters Performing the loopback test on board communication links Querying the cavity state and the cavity frequency Setting the TMA feeder Resetting the auxiliary equipment Maintaining the RET antenna

9.2 OM Functions of the BTS The OM functions of the BTS3900 consist of equipment management, software management, configuration management, service management, performance management, security management, alarm management, and environment monitoring.

Equipment Management Through the OM system, you can query the status of all the components (boards/modules) and all the external devices (power supply/environment monitoring/RET). You can also perform data configuration and status management for some devices. 9-6

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9 OM System of the BTS

Software Management l

Provides various functions, such as ing and activating the BTS software, upgrading patches, and loading and ing files. The associated tasks involve consistency check on the software and hardware releases, release management, and software upgrade.

l

Allows the BTS software upgrade through the USB port on the BBU without a PC.

Configuration Management l

Checks whether the added, deleted, or changed BTS data is consistent with the actual situation.

l

s automatic data backup.

l

s dynamic and static data configuration. In dynamic data configuration, the data immediately takes effect after modification; in static data configuration, the modified data takes effect after the BTS is reset.

Service Management l

s parameter setting and alarm query for the baseband boards, RET antenna, and environment monitoring device.

l

s various OM functions for the RET antenna, such as automatic scanning, data configuration (antenna tilt and TMA gain), status query, and alarm reporting.

l

s perfect self-test on hardware installation. The BTS can use the software package saved in the USB disk to perform local upgrade; thus shortening the upgrade period.

Performance Management l

Monitors the performance of the internal and external telecommunications networks and generates alarms when the performance deteriorates

l

Monitors the operating status of the BTS, such as monitors the traffic volume on the ports and measures the technical data of the BTS

l

Monitoring the usage of key components in the board, such as the U and DSP

Security Management The OM system provides security management functions, such as connection management, authentication, encryption, and forward and backward resolution of the interface messages between the BTS software and the OMC.

Alarm Management l

s query of real-time alarms and history alarms

l

Collects internal and external alarms, such as the environment monitoring device inputs and Boolean inputs

l

Processes alarm correlation to ensure precision and accuracy in locating alarms

l

Provides functions of saving, interpreting, prompting, shielding, filtering, confirming, clearing, post processing, and reporting of alarms

l

Provides functions of detecting and reporting alarms, and processing alarm correlation in the system

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9-7

BTS3900A GSM Product Description

9 OM System of the BTS

Environment Monitoring

9-8

l

The BTS has a perfect environment monitoring system.

l

The environment monitoring system provides customized solutions regarding door control, infrared, smoke, water damage, humidity, and temperature monitoring.

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

10

Technical Specifications of the BTS3900A

About This Chapter The technical specifications of the BTS3900A involve capacity specifications, RF specifications, engineering specifications, surge protection specifications, physical ports, environmental requirements, and compliance standards. 10.1 Capacity Specifications of the BTS3900/BTS3900A The BTS3900/BTS3900A capacity specifications are in of the number of TRXs and cells. 10.2 RF Specifications of the BTS3900/BTS3900A The radio frequency specifications of the BTS3900/BTS3900A involve the specifications related to the operating frequency bands, the transmitter, and the receiver. 10.3 Engineering Specifications of the BTS3900A The BTS3900A engineering specifications consist of the dimensions, weight, power supply, and power consumption. 10.4 Surge Protection Specifications of the BTS3900A This describes the surge protection specifications of the BTS3900A. The surge protection specifications of the BTS3900A ports consist of the DC or AC power supply, antenna, signal, and dry alarms. 10.5 Physical Ports of the BTS3900A The BTS3900A provides many physical ports to connect to the external equipment. The physical ports of the BTS3900A consists of power ports, transmission ports, and alarm ports. 10.6 Compliance Standards of the BTS3900/BTS3900A The BTS3900/BTS3900A complies with the standards of power distribution, EMC, surge protection, safety, operating environment, transportation adaptability, and storage adaptability. 10.7 Environmental Requirements of the BTS3900A This describes the environmental requirements. The requirements consist of the BTS3900A consist of the environmental requirements for operating, transporting, and storing the BTS3900A.

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

10.1 Capacity Specifications of the BTS3900/BTS3900A The BTS3900/BTS3900A capacity specifications are in of the number of TRXs and cells. l

A single cabinet holds up to six DRFUs.

l

A single cabinet serves up to six sectors.

l

A single cabinet s the maximum configuration of S4/4/4, up to 12 GSM TRXs.

l

A single site s up to 72 GSM TRXs in the maximum cell configuration of S24/24/24.

10.2 RF Specifications of the BTS3900/BTS3900A The radio frequency specifications of the BTS3900/BTS3900A involve the specifications related to the operating frequency bands, the transmitter, and the receiver.

Operating Frequency Band Table 10-1 lists the frequency bands ed by the BTS3900/BTS3900A. The spacing between two frequencies is 200 kHz. Table 10-1 Operating frequency bands of the BTS3900/BTS3900A Operating Frequency RX Frequency Band Band

TX Frequency Band

PGSM 900 MHz

890–915 MHz

935–960 MHz

EGSM 900 MHz

880–915 MHz

925–960 MHz

GSM 1800 MHz

1710–1785 MHz

1805–1880 MHz

Transmitter specification Table 10-2 lists the rated output power of the DRFU in the BTS3900/BTS3900A. Table 10-2 Output power of the DRFU in the BTS3900/BTS3900A

10-2

Operating Frequency Work Mode Band

Output Power (GMSK/ 8PSK TOC)

900 MHz

Non-combination

45 W/30 W

900 MHz

Combination

20 W/14 W

900 MHz

PBT

71 W/47 W

1800 MHz

Non-combination

40 W/26 W

1800 MHz

Combination

18 W/12 W

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Operating Frequency Work Mode Band

Output Power (GMSK/ 8PSK TOC)

1800 MHz

63 W/42 W

PBT

Receiver specification Table 10-3 lists the static receiver sensitivity of the BTS3900/BTS3900A. Table 10-3 Receiver sensitivity of the BTS3900/BTS3900A Receive Mode

Operating Frequency Band

Static Sensitivity (Typical Value)

Receive independency

900 MHz

-113 dBm

1800 MHz

-113 dBm

Two-way receive diversity

900 MHz

-116 dBm

1800 MHz

-116 dBm

Four-way receive diversity

900 MHz

-118.5 dBm

1800 MHz

-118.5 dBm

10.3 Engineering Specifications of the BTS3900A The BTS3900A engineering specifications consist of the dimensions, weight, power supply, and power consumption.

Dimensions Table 10-4 lists the dimensions of the BTS3900A cabinet. Table 10-4 Dimensions Cabinet Type

Width (mm)

Depth (mm)

Height (mm)

RF cabinet

600

480

700

APM30 Power Cabinet

600

480

700

Cabinet base

600

480

200

Weight Table 10-5 lists the weight of the BTS3900A cabinet. Issue 03 (2008-07-15)

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10 Technical Specifications of the BTS3900A

Table 10-5 Weight Cabinet Type

Weight (kg)

RF cabinet (DRFUs not involved)

58

RF cabinet (DRFUs involved)

130

APM30 power cabinet (BBU not involved)

65

APM30 power cabinet + RF cabinet

205

Power supply Power supply: The power supply to the BTS3900A meets the specifications listed in Table 10-6. Table 10-6 Specifications of the input power Power Type

Rated value

Allowed Range

220 V AC

220 V AC

176 V AC to 280 V AC

Power consumption Table 10-7 shows the power consumption of BTS3900A. Table 10-7 BTS3900A Power Consumption

10-4

Configurations

Typical Power Consumption (W)

Maximum Power Consumption (W)

S2/2/2 (900M, TOC = 20 W, not combined)

540

780

S4/4/4 (900M, TOC = 20 W, combined)

1150

2120

S4/4/4 (900M, TOC = 45 W, not combined)

1150

2120

S2/2/2 (1800M, TOC = 18 W, not combined)

530

840

S4/4/4 (1800M, TOC = 18 W, combined)

1140

2070

S2/2/2 (1800M, TOC = 40 W, not combined)

750

1150

S4/4/4 (1800M, TOC = 40 W, not combined)

1140

2070

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10.4 Surge Protection Specifications of the BTS3900A This describes the surge protection specifications of the BTS3900A. The surge protection specifications of the BTS3900A ports consist of the DC or AC power supply, antenna, signal, and dry alarms. NOTE

l

The surge protection specifications of the BTS3900A are defined in compliance with EN300 253, YD/T5098, and YD/T 5068. In addition, the specifications meet ITU-TK series and IEC61000-4-5.

l

The unspecified surge current with maximum discharge current is called nominal discharge current.

l

surge protection is required on the DC power input port upper-level .

Table 10-8 Surge protection specifications of the BTS3900A Port Name

Surge Protection Mode

Surge Current

Signal port

Differential mode

3 kA (8/20 us surge current)

Common mode

5 kA (8/20 us surge current)

Differential mode

3 kA (8/20 us surge current)

Common mode

5 kA (8/20 us surge current)

Differential mode

3 kA (8/20 us surge current)

Common mode

5 kA (8/20 us surge current)

Differential mode

60 kA (8/20 us surge current)

Common mode

60 kA (8/20 us surge current)

Differential mode

10 kA (8/20 us surge current)

Common mode

15 kA (8/20 us surge current)

Transmission port

E1 port

AC input port

DC input port

10.5 Physical Ports of the BTS3900A The BTS3900A provides many physical ports to connect to the external equipment. The physical ports of the BTS3900A consists of power ports, transmission ports, and alarm ports. Issue 03 (2008-07-15)

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10 Technical Specifications of the BTS3900A

Power port Table 10-9 Power ports of the BTS3900 Port Name

Module

Function

Power input terminal

Wiring Unit of the Power 220 V AC input Subrack (220 V)

Transmission Ports Table 10-10 BBU transmission ports Port Name

Port

Function

INSIDE

DB25, male

Transmits the four E1/T1 signals between the UELP and the GTMU

OUTSIDE

DB26 male

Provides the input and output of the four E1/T1 signals between the BBU and the BSC

RI0-RI5

SFP

Provides the input and output of the optical and electrical transmission signals between the BBU and the RF module

E1/T1

DB26 male

Provides the input and output of the four E1/T1 signals between the GTMU and the UELP or between the GTMU and the BSC

FE0

RJ45 connector

Reserved. Connects the BBU to a routing device in the equipment room through the Ethernet cable to transmit network information

FE1

DLC connector

Reserved. Connects the BBU to a routing device in the equipment room through the Ethernet cable to transmit network information

10-6

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Table 10-11 DRFU transmission ports Port Name

Port

Function

RI0

SFP female connector

Connected to the BBU directly, or connected to the upper-level cascaded DRFU

RI1

SFP female connector

Connected to the lower-level cascaded DRFU

Alarms Ports In the BTS3900A system, the alarms ports vary with the optional modules configured in the BBU3900. l

When the BBU3900 is configured with one UPEU, two RS485 buses and 8 dry signals are provided.

l

When the BBU3900 is configured with two UPEUs or one UPEU plus one UEIU, 4 RS485 buses and 16 dry signals are provided.

Table 10-12 BTS3900A alarm ports Port Name

Port

Function

MON0

RJ45 connector

Provides the input and output of the externally collected environment monitoring signals in format of the RS485 frame to the GTMU

MON1

RJ45 connector

Reserved

EXT-ALM0

RJ45 connector

Transmits the externally collected environment monitoring signals in format of the dry signals to the GTMU

EXT-ALM1

RJ45 connector

Reserved

Other External Ports Table 10-13 Other external ports of the BTS3900A

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Port Name

Port

Function

ETH

RJ45 connector

Used for local maintenance and commissioning

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Port Name

Port

Function

USB

USB connector

Reserved. Used in software upgrade from a USB disk

TST

USB connector

Connected to a tester for testing the output clock signals

10.6 Compliance Standards of the BTS3900/BTS3900A The BTS3900/BTS3900A complies with the standards of power distribution, EMC, surge protection, safety, operating environment, transportation adaptability, and storage adaptability.

Power Distribution Standards The compliance standards are as follows: l

ETS300132-1-1 Power Supply Interface at the Input to Telecommunication Equipment

l

ETS300132-1-2 Power Supply Interface at the Input to Telecommunication Equipment

EMC Standards The compliance standards are as follows:

10-8

l

CISPR 22 (1997): limits and methods of measurement of radio disturbance characteristics of information

l

EN55022 (1998): limits and methods of measurement of radio disturbance characteristics of information

l

CISPR 24 (1998): Information Technology Equipment --Immunity characteristics --Limits and methods measurement

l

IEC61000-4-2: Electromagnetic compatibility (EMC) Part 2:　 Testing and measurement techniques Section 2:　 Electrostatic discharge immunity test Basic EMC Publication

l

IEC61000-4-3: Electromagnetic compatibility; Part 3:　 Testing and measurement techniques Section 3 radio frequency electromagnetic fields; immunity test

l

IEC61000-4-4: Electromagnetic compatibility (EMC) Part 4:　 Testing and measurement techniques Section 4:　 Electrical fast transient/burst immunity test Basic EMC publication

l

IEC61000-4-5: Electromagnetic compatibility (EMC) Part 5:　 Testing and measurement techniques Section 5:　 Surge immunity test

l

IEC61000-4-6: Electromagnetic compatibility: Part 6:　 Testing and measurement techniques: Section 6 conducted disturbances induced by radio-frequency fields; immunity test

l

IEC61000-4-29: Electromagnetic compatibility: Part 29: Testing and measurement techniques and voltage variations on d.c. Input power port immunity test

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10 Technical Specifications of the BTS3900A l

ETSI 301 489-1 V1.3.1 (2001-09): Electromagnetic compatibility and Radio spectrum Matters (ERM);　 Electromagnetic Compatibility (EMC) standard for radio equipment and services; Part 1:　 Common technical requirements

l

FCC Part 15: Federal Communication Committee - part 15- radio frequency device

Surge Protection Standards The compliance standards are as follows: l

IEC 61312-1(1995) Protection Against Lightning Electromagnetic Impulse Part I : General Principles

l

IEC 61643-1(1998) Surge Protective devices connected to low-voltage power distribution systems

l

ITU-T K.11(1993) Principles of Protection Against Overvoltage and Overcurrents

l

ITU-T K.27(1996) Bonding Configurations and Earthing Inside a Telecommunication Building

l

ETS 300 253(1995) Equipment Engineering; Earthing and bonding of telecommunication equipment in telecommunication centers

Safety Standards The compliance standards are as follows: l

3G TR34.907 V3.0.0 Report on electrical safety requirements and regulations

l

IEC 60950-1 Safety of information technology equipment

l

EN 60950-1 Safety of information technology equipment

l

IEC60215 Safety requirement for radio transmitting equipment

Operating Environment Standards The compliance standards are as follows: l

EUROPEAN ETS 300 019-1-3 Class 3.1 "Stationary use at weatherprotected locations"

l

EUROPEAN ETS 300 753: Equipment Engineering(EE) Acoustic noise emitted by telecommunications equipment 1997

l

EUROPEAN ETS 300 019-1-3-Amd

Transportation Adaptability Standards The compliance standard is as follows: EUROPEAN ETS 300 019-1-2 Class 2.3 "PUBLIC transportation"

Storage Adaptability Standards The compliance standard is as follows: EUROPEAN ETS 300 019-1-1 Class 1.2 "not temperature-controlled storage" Issue 03 (2008-07-15)

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

10.7 Environmental Requirements of the BTS3900A This describes the environmental requirements. The requirements consist of the BTS3900A consist of the environmental requirements for operating, transporting, and storing the BTS3900A. 10.7.1 Environmental Requirements for Operating the BTS3900A This describes the working environment of the BTS3900A, which should meet the specified requirements. The specified requirements consists of the climatic, biological, air purity, and mechanical stress requirements. 10.7.2 Environmental Requirements for Transporting the BTS3900A This describes the optimal transportation environment of the BTS3900A. It focuses on the climatic, waterproofing, biological, air purity, and mechanical stress requirements for transporting the BTS3900A. 10.7.3 Environmental Requirements for Storing the BTS3900A This describes the optimal storage environment of the BTS3900A. It focuses on the climatic, waterproofing, biological, air purity, and mechanical stress requirements for storing the BTS3900A.

10.7.1 Environmental Requirements for Operating the BTS3900A This describes the working environment of the BTS3900A, which should meet the specified requirements. The specified requirements consists of the climatic, biological, air purity, and mechanical stress requirements.

Climatic requirements Table 10-14 lists the climatic requirements during the operation of the BTS3900A. Table 10-14 Climatic requirements Item

Document Scope

Temperature

-40 ºC to +50 ºC (without canopy) -40 ºC to +55 ºC (with canopy)

10-10

Temperature variation rate

≤ 3 ºC/min

Relative humidity

5% RH to 100% RH

Altitude

l

The BTS operates normally when the altitude ranges from -60 m to 3,000 m.

l

When the altitude ranges from 3,000 m to 4,000 m, the operating temperature of the BTS drops by 1ºC each time the altitude increases by 200 m.

Air pressure

70 kPa to 106 kPa

Solar radiation

≤ 1120 W/s2

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Item

Document Scope

Thermal radiation

≤ 600 W/s2

Wind speed

≤50 m/s

Biological Environment Requirements The operating environment of the BTS3900A should meet the following biological requirements: l

No fungus or mildew may grow in the equipment room or near the equipment.

l

The place is free from rodents, such as rats.

Air Cleanness Requirements The air cleanliness requirements related to the operating environment are as follows: l

The air is free from explosive, conductive, magnetically conductive, or corrosive dust.

l

The density of chemically active materials meets the requirements listed in Table 10-15. Table 10-15 Requirements for the density of chemically active substances Chemically Active Substance

Unit

Density

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

HF

mg/m3

≤0.01

O3

mg/m3

≤0.05

NOx

mg/m3

≤0.05

Mechanical Stress Requirements Table 10-16 lists the mechanical stress that the equipment can endure during operation.

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Table 10-16 Requirements for mechanical stress Item

Sub item

Document Scope

Sinusoidal vibration

Shift

≤3 mm

None

Acceleration

None

≤10.0 m/s2

Frequency range

2 Hz to 9 Hz

9–200 Hz

Impact response spectrum II

≤250 m/s2

Static payload

0

Unsteady impact

NOTE

l

The impact response spectrum refers to the maximum acceleration response curve generated by the equipment under the specified impact excitation. Impact response spectrum II means that the duration of semi-sine impact response spectrum is 6ms.

l

The static payload refers to the capability of the equipment in package to bear the pressure from the top in normal pile-up method.

10.7.2 Environmental Requirements for Transporting the BTS3900A This describes the optimal transportation environment of the BTS3900A. It focuses on the climatic, waterproofing, biological, air purity, and mechanical stress requirements for transporting the BTS3900A.

Climatic Requirements The transportation environment of the BTS3900A should meet the climatic requirements listed in Table 10-17. Table 10-17 Climatic requirements

10-12

Item

Document Scope

Temperature

-40 ºC to +70 ºC

Temperature variation rate

≤ 3 ºC/min

Relative humidity

10% to 100% (without wind)

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Item

Document Scope

Altitude

l

The BTS operates normally when the altitude ranges from -60 m to 3,000 m.

l

When the altitude ranges from 3,000 m to 4,000 m, the operating temperature of the BTS drops by 1ºC each time the altitude increases by 200 m.

Air pressure

70 kPa to 106 kPa

Solar radiation

≤ 1,120 W/m2

Thermal radiation

≤ 600 W/m2

Wind speed

≤ 50 m/s

Road class

2K4, including 2K3 and package transportation on 3rd-level roads in high altitude areas without environment protection

Waterproof Requirements The waterproofing requirements related to the transportation of the BTS are as follows: l

The package should be intact.

l

Waterproofing measures should be taken to prevent rainwater from leaking into the package.

l

There should be no water accumulated inside transportation vehicles.

Biological Environment Requirements The transportation environment of the BTS3900A should meet the following biological requirements: l

No fungus or mildew may grow in the equipment room or near the equipment.

l

The place is free from rodents, such as rats.

Air Cleanness Requirements The transportation environment of the BTS3900A should meet the following air cleanness requirements: l

The air is free from explosive, conductive, magnetic conductive, or corrosive dust.

l

The mechanically active substance must meet the requirements listed in Table 10-18.

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Table 10-18 Requirements for the density of mechanically active substances Mechanically Active Substance

Unit

Density

Suspended dust

(mg/m3)

≤ 35

Falling dust

mg/m2h

≤ 0.2

Sand

(mg/m3)

≤ 30

NOTE l Suspended dust: diameter ≤ 75 μm l Falling dust: 75 μm ≤ diameter ≤ 150 μm l Sand: 150 μm ≤ diameter ≤ 1,000 μm

l

The density of chemically active materials meets the requirements listed in Table 10-19. Table 10-19 Requirements for the density of chemically active substances Chemically Active Substance

Unit

Density

SO2

(mg/m3)

≤ 0.30

H2S

(mg/m3)

≤ 0.10

NOx

(mg/m3)

≤ 0.05

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

Mechanical Stress Requirements The transportation environment of the BTS3900A should meet the mechanical stress requirements listed in Table 10-20. Table 10-20 Requirements for mechanical stress

10-14

Item

Sub item

Document Scope

Sinusoidal vibration

Shift

≤ 3.5 mm

None

None

Acceleration

None

≤ 10.0 m/s2

≤ 15.0 m/s2

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Item

Random vibration

Unsteady impact

Sub item

Document Scope

Frequency range

2–9 Hz

9–200 Hz

200–500 Hz

Spectrum density of accelerated speed

30 m2/s3

3 m2/s3

1 m2/s3

Frequency range

2–10 Hz

10–200 Hz

200–500 Hz

Impact response spectrum II

≤ 250 m/s3

Static payload

≤ 10 kPa

NOTE l The impact response spectrum refers to the maximum acceleration response curve generated by the

equipment under the specified impact excitation. Impact response spectrum II means that the duration of semi-sine impact response spectrum is 6ms. l The static payload refers to the capability of the equipment in package to bear the pressure from the top

in normal pile-up method.

10.7.3 Environmental Requirements for Storing the BTS3900A This describes the optimal storage environment of the BTS3900A. It focuses on the climatic, waterproofing, biological, air purity, and mechanical stress requirements for storing the BTS3900A.

Climatic Requirements The storage environment of the BTS3900A should meet the climatic requirements listed in Table 10-21. Table 10-21 Climatic requirements

Issue 03 (2008-07-15)

Item

Document Scope

Temperature

-40 ºC to +70 ºC

Temperature variation rate

≤ 0.5 ºC/min

Relative humidity

10% to 100% (without wind)

Altitude

l

The BTS operates normally when the altitude ranges from -60 m to 3,000 m.

l

When the altitude ranges from 3,000 m to 4,000 m, the operating temperature of the BTS drops by 1ºC each time the altitude increases by 200 m.

Air pressure

70 kPa to 106 kPa

Solar radiation

≤ 1,120 W/m2

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Item

Document Scope

Thermal radiation

≤ 600 W/m2

Wind speed

≤ 50 m/s

Waterproof Requirements The storage environment of the BTS3900A should be waterproof. The equipment is preferably stored indoors. The indoor storage environment should meet the following waterproof requirements: l

There should be no water on the ground, and water should not leak into the package of the equipment.

l

In the equipment room, the BTS3900A is installed in a position that is not prone to water, for example, from automatic fire protection devices or the air conditioner.

If the equipment has to be placed outdoors, ensure that: l

The package is intact.

l

Waterproofing measures are taken to prevent rainwater from leaking into the package.

l

There is no water on the ground and water does not leak into the package.

l

The package is not directly exposed to sunlight.

Biological Environment Requirements The storage environment of the BTS3900A should meet the following biological requirements: l

No fungus or mildew may grow in the equipment room or near the equipment.

l

The place is free from rodents, such as rats.

Air Cleanness Requirements The storage environment of the BTS3900A should meet the following air cleanness requirements: l

There should be no explosive, conductive, magnetic conductive, or corrosive dust in the air.

l

The mechanically active substance must meet the requirements listed in Table 10-22. Table 10-22 Requirements for the density of mechanically active substances

10-16

Mechanically Active Substance

Unit

Density

Suspended dust

(mg/m3)

≤ 5.00

Falling dust

mg/m2h

≤500.00

Sand

(mg/m3)

≤ 300

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Mechanically Active Substance

Unit

Density

NOTE l Suspended dust: diameter ≤ 75 μm l Falling dust: 75 μm ≤ diameter ≤ 150 μm l Sand: 150 μm ≤ diameter ≤ 1,000 μm

l

The density of chemically active materials meets the requirements listed in Table 10-23. Table 10-23 Requirements for the density of chemically active substances Chemically Active Substance

Unit

Density

SO2

(mg/m3)

≤ 0.30

H2S

(mg/m3)

≤ 0.10

NOx

(mg/m3)

≤0.50

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

Mechanical Stress Requirements The storage environment of the BTS3900A should meet the mechanical stress requirements listed in Table 10-24. Table 10-24 Requirements for mechanical stress Item

Sub item

Document Scope

Sinusoidal vibration

Shift

≤ 1.5 mm

-

Acceleration

-

≤ 5.0 m/s2

Frequency range

2–9 Hz

9–200 Hz

Impact response spectrum II

≤ 250 m/s2

Static payload

≤ 5 kPa

Unsteady impact

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BTS3900A GSM Product Description

10 Technical Specifications of the BTS3900A

Item

Sub item

Document Scope

NOTE l The impact response spectrum refers to the maximum acceleration response curve generated by the

equipment under the specified impact excitation. Impact response spectrum II means that the duration of semi-sine impact response spectrum is 6 ms. l The static payload refers to the capability of the equipment in package to bear the pressure from the top

in normal pile-up method.

10-18

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