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Airbridge DBS3900 CDMA Base Station

V400R006C08

Product Description

Issue 11

Date 2010-06-18

HUAWEI TECHNOLOGIES CO., LTD.

Issue 11 (2010-06-18) Huawei Proprietary and Confidential

No part of this document may be reproduced or transmitted in any form or by any means without prior

written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

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

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

holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and

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

within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,

information, and recommendations in this document are provided "AS IS" without warranties, guarantees or

representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: support@huawei.com

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iii

About This Document

Purpose

This document describes the overall structure, logical structure, auxiliary devices,

configuration principles, and networking modes of the DBS3900. In addition, this document

describes the transmit and receive performance, physical and electrical specifications,

lightning protection performance, and environmental requirements of the DBS3900. You can

obtain a comprehensive understanding of the DBS3900 by reading this document.

Product Version

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

Product Name Product Version

DBS3900 CDMA V400R006C08

Intended Audience

This document is intended for:

z Field engineers

z System engineers

Change History

Version Change History

11 (2010-06-18) The modifications in this version are as

follows:

z Product version update.

10 (2010-03-18) The modifications in this version are as

follows:

z Product version update.

About This Document

Airbridge DBS3900 CDMA Base Station

Product Description

iv Huawei Proprietary and Confidential

Issue 11 (2010-06-18)

Version Change History

09 (2009-12-25) Ninth release of the DBS3900 V400R006.

08 (2009-09-15) The modifications in this version are as

follows:

z The contents related to the AWS band

classes supported by the AC RRU3606

are added.

07 (2009-08-30) Seventh release of the DBS3900 V400R006.

06 (2009-08-15) Sixth release of the DBS3900 V400R006.

05 (2009-07-07) Fifty release of the DBS3900 V400R006.

04 (2009-05-30) The modifications in this version are as

follows:

z The descriptions of the UBRI and UEIU

are added.

03 (2009-04-01) The modifications in this version are as

follows:

z The contents related to the AC RRU3606

are added.

z The contents related to the CMPT (8 E1)

are added.

z The contents related to the 450 MHz band

classes supported by the DC RRU3606

are added.

02 (2008-08-10) The modifications in this version are as

follows:

z The networking of the DBS3900 is

deleted, and the transmission and

networking of the BTS are added.

z The contents related to the operation and

maintenance of the BTS are modified.

z The performance measurement items of

the DBS3900 are modified.

01(2008-06-25) Initial release of the DBS3900 V400R006.

Organization

1 Overall Structure of the DBS3900

This describes the overall structure of the DBS3900, which consists of the BBU3900,

RRU3606, cables, antenna system, and auxiliary equipment.

2 Solutions for the Auxiliary Devices of the DBS3900

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This describes the solutions for the auxiliary devices of the DBS3900. The DBS3900 uses a

modular structure. The basic modules of the DBS3900 are the BBU3900 and RRU3606. The

auxiliary devices of the DBS3900 include the indoor centralized installation rack, L-shaped

support, APM, storage battery cabinet, DCDU, EMUA, SLPU, ODF, DDF, DC power system,

and AC power system. The basic modules and auxiliary devices can be flexibly configured to

form integrated site solutions.

3 Configuration Principles of the DBS3900

This describes the configuration principles of the DBS3900, covering the configurations of

the BBU3900, RRU3606, power supply, and satellite synchronization antenna.

4 Transmission and Networking of the BTS

This describes the transmission and networking of the BTS. The networking modes supported

by the BTS are the star networking mode, chain networking mode, and tree networking mode.

5 Operation and Maintenance of the BTS

This section describes the operation and maintenance of the BTS. The operation and

maintenance of the BTS refers to the management, monitoring, and maintenance of the BTS.

The BTS provides various methods and platforms for operation and maintenance to cater to

different scenarios.

6 Technical Specifications of the DBS3900

This describes the technical specifications of the DBS3900.

Conventions

Symbol Conventions

The symbols that may be found in this document are defined as follows.

Symbol Description

Indicates a hazard with a high level of risk that, if not avoided,

will result in death or serious injury.

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 time.

Provides additional information to emphasize or supplement

important points of the main text.

About This Document

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General Conventions

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are in

boldface. For example, log in as user root.

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

Command Conventions

Convention Description

Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

[ ] 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.

GUI Conventions

Convention Description

Boldface Buttons, menus, parameters, tabs, windows, 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.

Keyboard Operation

Format Description

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

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vii

Format Description

Key 1+Key 2 Press the keys concurrently. For example, pressing

Ctrl+Alt+A means the three keys should be pressed

concurrently.

Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means

the two keys should be pressed in turn.

Mouse Operation

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.

Airbridge DBS3900 CDMA Base Station

Product Description Contents

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Contents

About This Document...................................................................................................................iii

1 Overall Structure of the DBS3900...........................................................................................1-1

1.1 Physical Structure of the DBS3900...............................................................................................................1-3

1.2 Physical Ports of the DBS3900 .....................................................................................................................1-6

1.2.1 Ports on the BBU3900 .........................................................................................................................1-6

1.2.2 Physical Ports of the RRU3606..........................................................................................................1-10

1.3 Logical Structure of the DBS3900 ..............................................................................................................1-12

1.3.1 Functional Structure of the BBU3900................................................................................................1-12

1.3.2 Logical Structure of the RRU3606.....................................................................................................1-13

1.4 Software Structure of the BTS ....................................................................................................................1-13

2 Solutions for the Auxiliary Devices of the DBS3900..........................................................2-1

2.1 Indoor Centralized Installation of the DBS3900 ...........................................................................................2-2

2.2 Indoor Distributed Installation of the DBS3900............................................................................................2-3

2.3 Outdoor Centralized Installation of the DBS3900 ........................................................................................2-4

2.4 Outdoor Distributed Installation of the DBS3900.........................................................................................2-6

3 Configuration Principles of the DBS3900.............................................................................3-1

3.1 Configuration Principles of the BBU3900 ....................................................................................................3-1

3.2 Configuration Principles of the RRU3606 ....................................................................................................3-3

3.3 Configuration Principles of the Power Supply ..............................................................................................3-3

3.4 Configuration Requirements of the RF Antennas..........................................................................................3-4

3.5 Configuration Principles of the Satellite Synchronization Antenna ..............................................................3-4

3.6 Typical Configurations of the DBS3900 .......................................................................................................3-5

4 Transmission and Networking of the BTS ...........................................................................4-1

4.1 Star Networking Mode ..................................................................................................................................4-1

4.2 Chain Networking Mode...............................................................................................................................4-2

4.3 Tree Networking Mode .................................................................................................................................4-3

5 Operation and Maintenance of the BTS................................................................................5-1

5.1 Operation and Maintenance Modes of the BTS ............................................................................................5-1

5.2 Operation and Maintenance Functions of the BTS .......................................................................................5-2

6 Technical Specifications of the DBS3900..............................................................................6-1

Contents

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6.1 Performance Specifications of the DBS3900 ................................................................................................6-1

6.2 Physical and Electrical Specifications of the DBS3900................................................................................6-6

6.2.1 Technical Specifications of the BBU3900 ...........................................................................................6-6

6.2.2 Technical Specifications of the RRU3606 ...........................................................................................6-7

6.3 Reliability Specifications of the DBS3900....................................................................................................6-9

6.4 Lightning Protection Specifications of the DBS3900 ...................................................................................6-9

6.5 Safety Specifications of the DBS3900 ........................................................................................................6-10

6.6 EMC Specifications of the DBS3900.......................................................................................................... 6-11

6.7 Environmental Specifications of the DBS3900...........................................................................................6-12

6.7.1 Storage Environment..........................................................................................................................6-12

6.7.2 Transportation Environment ..............................................................................................................6-15

6.7.3 Requirements for the Running Environment of the DBS3900...........................................................6-19

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Product Description Figures

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Figures

Figure 1-1 Hardware structure of the DBS3900.................................................................................................1-1

Figure 1-2 Major functional modules of the DBS3900 ......................................................................................1-3

Figure 1-3 BBU3900..........................................................................................................................................1-3

Figure 1-4 Configuration of the BBU3900.........................................................................................................1-3

Figure 1-5 DC RRU3606 ...................................................................................................................................1-5

Figure 1-6 AC RRU3606....................................................................................................................................1-6

Figure 1-7 Logical structure of the RRU3606..................................................................................................1-13

Figure 1-8 Software structure of the BTS ........................................................................................................1-14

Figure 2-1 Indoor Centralized Installation of the DBS3900...............................................................................2-2

Figure 2-2 Indoor distributed installation ...........................................................................................................2-4

Figure 2-3 Outdoor centralized installation of the DBS3900 .............................................................................2-5

Figure 2-4 Outdoor distributed installation of the DBS3900 .............................................................................2-7

Figure 4-1 Star networking mode.......................................................................................................................4-2

Figure 4-2 Chain networking mode....................................................................................................................4-3

Figure 4-3 Tree networking mode ......................................................................................................................4-4

Figure 5-1 Networking of the operation and maintenance system .....................................................................5-2

Figure 6-1 Dimensions of the BBU3900............................................................................................................6-7

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Product Description Tables

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xiii

Tables

Table 1-1 Boards in the BBU3900......................................................................................................................1-4

Table 1-2 Ports on the RRU3606 (DC type).....................................................................................................1-10

Table 1-3 Ports on the RRU3606 (AC type).....................................................................................................1-11

Table 2-1 Auxiliary devices used in the door distributed installation of the DBS3900 ......................................2-3

Table 2-2 Auxiliary devices used in the door distributed installation of the DBS3900 ......................................2-4

Table 2-3 Auxiliary devices used in the outdoor distributed installation of the DBS3900 .................................2-6

Table 2-4 Auxiliary devices used in the door distributed installation of the DBS3900 ......................................2-7

Table 3-1 Power supply configuration in indoor installation..............................................................................3-3

Table 3-2 Power supply configuration in outdoor installation............................................................................3-4

Table 6-1 Transmit specifications in band class 0 (800 MHz)............................................................................6-2

Table 6-2 Receive specifications in band class 0 (800 MHz) .............................................................................6-2

Table 6-3 Transmit specifications in band class 1 (1900 MHz)..........................................................................6-2

Table 6-4 Receive specifications in band class 1 (1900 MHz) ...........................................................................6-3

Table 6-5 Transmit specifications in band class 5 (450 MHz)............................................................................6-3

Table 6-6 Receive specifications in band class 5 (450 MHz) .............................................................................6-3

Table 6-7 Transmit specifications in band class 14 (1900 MHz)........................................................................6-4

Table 6-8 Receive specifications in band class 14 (1900 MHz) .........................................................................6-4

Table 6-9 Transmit specifications in band class 15 (AWS) ................................................................................6-4

Table 6-10 Receive specifications in band class 15 (AWS)................................................................................6-5

Table 6-11 RRU3606 cascading specifications of the DBS3900........................................................................6-5

Table 6-12 BER threshold specifications of BTS transmission links .................................................................6-6

Table 6-13 Technical specifications of the BBU3900.........................................................................................6-7

Table 6-14 Technical specifications of the RRU3606 (DC type)........................................................................6-7

Table 6-15 Technical specifications of the RRU3606 (AC type)........................................................................6-8

Table 6-16 Reliability specifications of the DBS3900........................................................................................6-9

Table 6-17 Lightning protection specifications of the DBS3900........................................................................6-9

Tables

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Table 6-18 Climatic requirements for the storage environment of the equipment............................................6-13

Table 6-19 Requirements for the concentration of mechanically active substances in the storage environment of

the equipment....................................................................................................................................................6-14

Table 6-20 Requirements for the concentration of chemically active substances in the storage environment of

the equipment....................................................................................................................................................6-14

Table 6-21 Requirements for the mechanical stress in the storage environment of the BBU...........................6-15

Table 6-22 Requirements for the mechanical stress in the storage environment of the RRU...........................6-15

Table 6-23 Climatic requirements for the transportation environment of the equipment .................................6-16

Table 6-24 Requirements for the concentration of mechanically active substances in the transportation

environment of the equipment...........................................................................................................................6-17

Table 6-25 Requirements for the concentration of chemically active substances in the transportation

environment of the equipment...........................................................................................................................6-17

Table 6-26 Requirements for the mechanical stress in the transportation environment of the BBU ................6-18

Table 6-27 Requirements for the mechanical stress in the transportation environment of the RRU ................6-18

Table 6-28 Climatic requirements for the running environment of the equipment...........................................6-19

Table 6-29 Requirements for the concentration of mechanically active substances in the running environment of

the equipment....................................................................................................................................................6-20

Table 6-30 Requirements for the concentration of chemically active substances in the running environment of

the BBU.............................................................................................................................................................6-20

Table 6-31 Requirements for the concentration of chemically active substances in the running environment of

the RRU.............................................................................................................................................................6-20

Table 6-32 Requirements for the mechanical stress in the running environment of the BBU..........................6-21

Table 6-33 Requirements for the mechanical stress in the running environment of the RRU..........................6-21

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Product Description 1 Overall Structure of the DBS3900

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1 Overall Structure of the DBS3900

About This Chapter

This describes the overall structure of the DBS3900, which consists of the BBU3900,

RRU3606, cables, antenna system, and auxiliary equipment.

Figure 1-1 shows the hardware structure of the DBS3900.

Figure 1-1 Hardware structure of the DBS3900

Functional Modules of the DBS3900

Functional

Module Description

BBU3900 Being the baseband unit of the DBS3900, this component is responsible

for resource management, operation and maintenance, and environment

monitoring of the system.

RRU3606 Being the remote RF module unit of the DBS3900, this component is

responsible for transmitting and receiving radio signals to achieve

communications between the wireless network system and the MSs.

1 Overall Structure of the DBS3900

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There are two types of RRU3606s. One type uses DC power supply whereas the other type uses AC

power supply.

The band classes that the DC RRU3606 and AC RRU3606 support are as follows:

z The DC RRU3606 supports the 450 MHz, 800 MHz, 1900 MHz, and AWS band classes.

z The AC RRU3606 supports the 800 MHz A and AWS band classes.

Composition of the DBS3900

Device Description

APM30 The APM30 is an integrated power system for outdoor use and

has the following features:

z Supporting -48 V DC and 110/220 V AC power supply

z Providing at most 12 U space for user equipment when not

configured with additional devices

z Supporting internal storage batteries in the case of AC input

z Supporting piled installation with the storage battery cabinet

(under the APM30 cabinet), which is optional

DCDU The DCDU is a power distribution box and supports one DC

input and nine DC outputs.

EMUA The EMUA is an environment monitoring unit and implements

monitoring for the site environment and user equipment.

For details on the functions of the EMUA, see the EMUA User

Guide.

SLPU The SLPU is a lightning protection unit, which is used to

configure the UELP and UFLP. It implements lightning

protection for E1/T1 and FE/GE signals.

DDF DDFs are classified into two types, which are used for coaxial

cables and twisted-pair cables respectively. A DDF is required

when the transmission equipment and BBU3900 are configured

in the same cabinet.

DC power system Made up of PSUDC/DC modules, the DC power system converts

+24 V DC input to -48 V DC output.

AC power system Made up of PSUAC/DC modules and PMU modules, the AC

power system converts 220/110 V AC input to -48 V DC

output.

1.1 Physical Structure of the DBS3900

This describes the physical structure of the DBS3900, which consists of the BBU3900,

RRU3606, and auxiliary equipment.

1.2 Physical Ports of the DBS3900

This describes the physical ports of the DBS3900.

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1.3 Logical Structure of the DBS3900

This describes the logical structure of the DBS3900.

1.4 Software Structure of the BTS

This section describes the software structure of the BTS. The BTS software consists of the

platform software, signaling protocol software, operation and maintenance software, and data

center.

1.1 Physical Structure of the DBS3900

This describes the physical structure of the DBS3900, which consists of the BBU3900,

RRU3606, and auxiliary equipment.

Figure 1-2 shows the major functional modules of the DBS3900.

Figure 1-2 Major functional modules of the DBS3900

Physical Structure of the BBU3900

Figure 1-4 shows the configuration of the BBU3900.

Figure 1-3 Configuration of the BBU3900

FAN

UPEU/UEIU

CMPT

CMPT/USCU/LMPT

HCPM/HECM/UTRP/UELP/UFLP

HCPM/HECM/UBRI

HCPM/HECM/USCU

HCPM/HECM

UPEU

HCPM/HECM/USCU/LBBP

HCPM/HECM/UTRP/UELP/UFLP/USCU

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Table 1-1 Boards in the BBU3900

Module Expansion Description Function

CMPT CDMA Main

Processing&Tra

nsmission Unit

It is the main

processing and

transmission

module.

It processes and transmits data

between the BTS and the BSC,

controls and manages the entire

BTS, and provides clock signals

for the BTS system.

HCPM HERT Channel

Processing

Module

It is the 1X

channel

processing

module.

It processes the 1X service data

on forward and reverse channels.

HECM HERT Enhance

Channel

Processing

Module

It is the EV-DO

channel

processing

module.

It processes the EV-DO service

data on forward and reverse

channels.

LMPT LTE Main

Processing &

Transmission

Unit

It is LTE main

control and

transmission unit.

It manages the entire eNodeB in

terms of OM and signaling

processing and provides clock

signals for the BBU3900.

LBBP LTE BaseBand

Processing unit

It is LTE

BaseBand

Processing unit.

It processes the baseband signals

and Common Public Radio

Interface (CPRI) signals.

UTRP Universal

Extension

Transmission

Processing Unit

It is the universal

extension

transmission

processing unit.

It provides connection between

the BBU3900 and the BSC, and

supports IP transmission over

E1/T1 links.

UBRI Universal

Baseband Radio

Interface Unit

It is the universal

extension radio

interface unit.

It implements the functions of PN

sharing, 1X resource pool, and

convergence and distribution of

baseband data.

UEIU Universal

Environment

Interface Unit

It is the universal

environment

interface unit.

It provides the environment

monitoring signal port for the

BBU3900.

UELP Universal E1/T1

Lightning

Protection Unit

It is the universal

E1/T1 surge

protection unit.

It provides surge protection for

E1/T1 signals.

UFLP Universal

FE/GE

Lightning

Protection Unit

It is the FE/GE

surge protection

unit.

It provides surge protection for

FE signals.

FAN FAN Unit It is the FAN unit

of the BBU3900.

It implements heat dissipation for

the BBU3900.

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Module Expansion Description Function

UPEU Universal Power

and

Environment

Interface Unit

It is the universal

power and

environment

interface unit.

It converts -48 V DC or +24 V

DC to +12 V DC and provides

environment monitoring signal

ports for the BBU3900.

USCU Universal

Satellite Card

and Clock Unit

It is the universal

satellite card and

clock unit.

It provides the input port for

external signals (including

satellite clock signals), and

provides synchronization clock

signals for the BBU3900 and for

the RF modules connected to the

BBU3900.

Physical Structure of the RRU3606

The RRU3606 is of two types, that is, the DC RRU3606 and the AC RRU3606, as shown in

Figure 1-5 and Figure 1-6.

Figure 1-4 DC RRU3606

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Figure 1-5 AC RRU3606

1.2 Physical Ports of the DBS3900

This describes the physical ports of the DBS3900.

1.2.1 Ports on the BBU3900

The ports of the BBU3900 consist of the power ports, transmission ports, alarm ports,

reserved ports, and ports connected to other equipment.

1.2.2 Physical Ports of the RRU3606

The physical ports of the RRU3606 include power ports, transmission ports, alarm ports,

grounding ports, and RF ports. The physical ports of the DC RRU3606 slightly different from

those of the AC RRU3606.

1.2.1 Ports on the BBU3900

The ports of the BBU3900 consist of the power ports, transmission ports, alarm ports,

reserved ports, and ports connected to other equipment.

Ports on Mandatory Boards

Board Port Quantit

y Connector

Type Function

CMPT (4

E1)

E1/T1 1 DB26 It is a transmission port,

which is connected to

the BSC and provides

four E1/T1 links.

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Board Port Quantit

y Connector

Type Function

FE0 1 RJ45 It is the transmission

port, which is connected

to the BSC and provides

one FE link.

FE electrical port,

supporting cable

connection

FE1 1 SFP It is the transmission

port, which is connected

to the BSC and provides

one FE link.

FE optical port,

supporting optical

cables (a removable

optical module is

required)

USB 1 USB It is reserved.

TST 1 USB It is a clock test port.

ETH 1 RJ45 It is a commissioning

port for local

maintenance.

GPS 1 SMA It is used for GPS signal

input.

E1/T1 1 DB44 It is a transmission port,

which is connected to

the BSC and provides

eight E1/T1 links.

FE0 1 RJ45 It is a transmission port,

which is connected to

the BSC and provides

one FE link.

It is an FE electrical port

supporting cable

connection.

USB 1 USB It is reserved.

TST 1 USB It is a clock test port.

ETH 1 RJ45 It is a commissioning

port for local

maintenance.

CMPT (8

E1)

GPS 1 SMA It is used for GPS signal

input.

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Board Port Quantit

y Connector

Type Function

HCPM/HEC

SFP 3 SFP They are connected to

the RF module.

SFP 0 and SFP 1

2 LC

Indicate Ethernet optical

ports, which are used to

connect to the

transmission device or

gateway

USB 1 USB

Loads software to the

board

TST 1 USB Test

ETH 1 RJ-45 Debug

FE/GE0 and

FE/GE

2 RJ-45

Indicate Ethernet

electrical ports, which

are used for connection

to the transmission

device or gateway

GPS

1 SMA

Receives GPS signals

LMPT

RST

1 -

Resets the BBU3900

LBBP CPRI0 to CPRI5

6 SFP connector

Connecting to the

LRRU, LRFU,

RRU3606 or CRFU for

transmitting service

data, clock signals, and

synchronization

information

Power port 1 3V3 It is used for DC input.

MON0 1 RJ45

MON1 1 RJ45

Each port provides

monitoring function for

one RS485 link. There

are totally two RS485

links.

EXT-ALM0 1 RJ45

UPEU

EXT-ALM1 1 RJ45

Each port provides four

links for dry contact

alarm signal input.

There are totally eight

links of dry contact

alarm signals.

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Ports on Optional Boards

Board Port Quantit

y Connector

Type Function

INSIDE 1 DB25 It provides four links for

E1/T1 signal input and

is connected to the

BBU.

UELP

OUTSIDE 1 DB26 It provides four links for

E1/T1 signal output, and

connects the

transmission equipment

and the BSC.

FE0 and FE1

(INSIDE)

2 RJ45 Each port provides one

link for FE signal input

and is connected to the

BBU.

UFLP

FE0 and FE1

(OUTSIDE)

2 RJ45 Each port provides four

links for E1/T1 signal

output and connects the

transmission equipment

and the BSC.

GPS port 1 SMA It is used for receiving

GPS signals.

RGPS port 3 8-pin terminal

block

They are used for

receiving RGPS signals.

BITS port 1 SMA It is connected to the

BITS clock.

USCU0

TEST port 1 SMA It is used as the output

end for the clock test.

GPS port 1 SMA It is used for receiving

GPS signals.

RGPS port 2 8-pin terminal

block

They are used for

receiving RGPS signals.

TOD port 2 RJ45 They are used for

receiving or transmitting

1PPS and TOD signals.

BITS port 1 SMA It is connected to the

BITS clock and supports

the adaptive input of

2.048 MHz clock

signals and 10 MHz

clock signals.

USCUb0

M-1PPS port 1 SMA It is used for receiving

M1000 1PPS signals.

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Board Port Quantit

y Connector

Type Function

UTRP E1/T1 port 2 DB26 Each port provides four

E1/T1 links. There are

totally eight E1/T1 links

provided.

UBRI CPRI 6 SFP They are connected to

the RF module.

MON0 1 RJ45

MON1 1 RJ45

Each port provides

monitoring function for

one RS485 link. There

are totally two RS485

links.

EXT-ALM0 1 RJ45

UEIU

EXT-ALM1 1 RJ45

Each port provides four

links for dry contact

alarm signal input.

There are totally eight

links of dry contact

alarm signals.

1.2.2 Physical Ports of the RRU3606

The physical ports of the RRU3606 include power ports, transmission ports, alarm ports,

grounding ports, and RF ports. The physical ports of the DC RRU3606 slightly different from

those of the AC RRU3606.

Table 1-2 lists the physical ports of the DC RRU3606.

Table 1-2 Ports on the RRU3606 (DC type)

Port Type Port Description Quantity Connector

RTN (+) or

RTN (+) 0

Power port

NEG (-) or

NEG (-) 0

Port for -48 V DC

power supply

1 Screw

CPRI_E Connecting the

lower-level CPRI

port

1 SFP port

Transmissio

n port

CPRI_W Connecting the

BBU or the

upper-level CPRI

port

1 SFP port

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Port Type Port Description Quantity Connector

Alarm port RS485/EXT

_ALM

Port for receiving

one link of RS485

signals

1 DB15 connector

Ground port - Ground screw 4 Screw

ANT_TX/R

Port for TX/main

RX signals

1 Cylindrical

waterproof DIN

connector

ANT_RXB Port for diversity

RX signals

1 Cylindrical

waterproof DIN

connector

RF port

RX_IN/OU

Sharing main RX

signals with other

RRU3606s

1 2W2 connector

Communicat

ion port for

the RET

antenna

RET/PWR_

SRXU

Communication

port for the RET

antenna

1 DB9 connector

The short-circuit impedance of the alarm port is less than 0.2 kilohm, and the open-circuit impedance of

the alarm port is more than 51 kilohms.

Table 1-3 lists the physical ports of the AC RRU3606.

Table 1-3 Ports on the RRU3606 (AC type)

Type Name Description Quantity Connector Type

AC-in Port for 220 V

AC/110 V AC

power input

1 3-pin round

waterproof

connector

Power port

DC-out Port for DC power

output

1 -

CPRI_E CPRI port 1 SFP socket Transmissio

n port CPRI_W CPRI port 1 SFP socket

Alarm port RS485/EXT

_ALM

Port for reporting

AC power failure

alarms

1 DB15 connector

Ground port - - 4 -

RF port ANT_TX/R

Port for TX/main

RX signals

1 DIN round

waterproof

connector

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Type Name Description Quantity Connector Type

ANT_RXB Port for diversity

RX signals

1 DIN round

waterproof

connector

RX_IN/OU

Sharing main RX

signals with other

RRU3606s

- 2W2 connector

Communicat

ion port for

the RET

antenna

RET/PWR_

SRXU

Communication

port for the RET

antenna

- DB9 connector

1.3 Logical Structure of the DBS3900

This describes the logical structure of the DBS3900.

1.3.1 Functional Structure of the BBU3900

The BBU3900 implements system resource management, operation and maintenance,

environment monitoring, and service processing.

1.3.2 Logical Structure of the RRU3606

This describes the logical structure of the RRU3606, which is used for up-conversion and

down-conversion of signals and for power amplification.

1.3.1 Functional Structure of the BBU3900

The BBU3900 implements system resource management, operation and maintenance,

environment monitoring, and service processing.

The BBU3900 performs the following functions:

z Providing external ports

− Providing the Abis interface and processing Abis interface protocols

− Interfacing with the RF subsystem and processing the Um physical layer and

common channel MAC layer protocols

− Interfacing with the transmission system through the E1/T1/FE ports on the

transmission board for connection to the BSC equipment, and providing connection

to the RF module through SFP ports on the channel processing board

z Modulating and demodulating baseband data, coding and decoding CDMA channels

z Providing clock signals for system synchronization

z Implementing resource management, operation and maintenance, and environment

monitoring for the system

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1.3.2 Logical Structure of the RRU3606

This describes the logical structure of the RRU3606, which is used for up-conversion and

down-conversion of signals and for power amplification.

Figure 1-7 shows the logical structure of the RRU3606.

Figure 1-6 Logical structure of the RRU3606

The RRU3606 performs the following functions:

z On the forward link, implementing up-conversion and power amplification for

modulated transmitted signals and filtering the transmitted signals to make them meet the

requirements of the air interface protocol

z On the reverse link, filtering the signals received by the antenna to suppress out-band

interference and then performing low noise amplification, down-conversion, and

channel-selective filtering.

1.4 Software Structure of the BTS

This section describes the software structure of the BTS. The BTS software consists of the

platform software, signaling protocol software, operation and maintenance software, and data

center.

The signaling protocol software, operation and maintenance software, and data center are

applications, whereas the platform software is supporting software.

Figure 1-8 shows the software structure of the BTS.

1 Overall Structure of the DBS3900

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Figure 1-7 Software structure of the BTS

Platform Software

The major functions of the platform software are as follows:

z Timing management

z Task management

z Memory management

Data Center

The data center stores the configuration data of each module.

Signaling Protocol Software

The major functions of the signaling protocol software are as follows:

z Radio network layer protocol processing

z Transport network layer protocol processing

z Managing the internal logical resources of the BTS, for example, cells and channels, and

implementing mapping between physical resources and logical resources

Operation and Maintenance Software

The operation and maintenance software works with the maintenance terminal, for example,

the LMT or M2000, to perform the operation and maintenance of the BTS.

The major functions of the operation and maintenance software are as follows:

z Equipment management

z Data configuration

z Performance management

z Commissioning management

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z Alarm management

z Software management

z Tracing management

z Security management

z Backup management

z Log management

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2 Solutions for the Auxiliary Devices of the

DBS3900

About This Chapter

This describes the solutions for the auxiliary devices of the DBS3900. The DBS3900 uses a

modular structure. The basic modules of the DBS3900 are the BBU3900 and RRU3606. The

auxiliary devices of the DBS3900 include the indoor centralized installation rack, L-shaped

support, APM, storage battery cabinet, DCDU, EMUA, SLPU, ODF, DDF, DC power system,

and AC power system. The basic modules and auxiliary devices can be flexibly configured to

form integrated site solutions.

2.1 Indoor Centralized Installation of the DBS3900

This describes the indoor centralized installation of the DBS3900. In this mode, the major

modules are the BBU3900 and RRU3606. The BBU3900 supports -48 V DC input. The DC

RRU3606 supports -48 V DC input. The AC RRU3606 supports 220/110 V AC input.

Installing the DBS3900 on the indoor centralized installation rack or L-shaped support as a

macro base station makes it convenient for the operator to manage the spare components and

versions in a centralized manner and to perform maintenance and upgrade in future.

2.2 Indoor Distributed Installation of the DBS3900

This describes the indoor distributed installation of the DBS3900. In this mode, the major

modules are the BBU3900 and RRU3606. The BBU3900 supports -48 V DC input. The DC

RRU3606 supports -48 V DC input. The AC RRU3606 supports 220/110 V AC input. The

BBU3900 can be installed in the free space in an indoor 19" cabinet and uses the transmission

and power supply equipment that is already available in the equipment room. The RRU3606

can be installed on a wall, close to the RF antenna. In this way, the cost on the feeder is cut,

the loss on the line is reduced, and the coverage is improved.

2.3 Outdoor Centralized Installation of the DBS3900

This describes the outdoor centralized installation of the DBS3900. In this mode, the major

modules are the BBU3900 and RRU3606. The BBU3900 supports 220/110 V AC and -48 V

DC power input. The DC RRU3606 supports -48 V DC power input. The AC RRU3606

supports 220/110 V AC power input. The BBU3900 can be installed in the APM30, and the

RRU3606 can be installed on a wall or pole close to the RF antenna. In this way, the cost of

network construction are reduced.

2.4 Outdoor Distributed Installation of the DBS3900

2 Solutions for the Auxiliary Devices of the DBS3900

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This describes the outdoor distributed installation of the DBS3900. In this mode, the major

modules are the BBU3900 and RRU3606. The BBU3900 supports 220/110 V AC input and

-48 V DC input. The DC RRU3606 supports -48 V DC input. The AC RRU3606 supports

220/110 V AC input. The BBU3900 can be installed in the APM30, and the RRU3606 can be

installed on a wall or pole close to the RF antenna. In this way, the cost of network

construction is reduced.

2.1 Indoor Centralized Installation of the DBS3900

This describes the indoor centralized installation of the DBS3900. In this mode, the major

modules are the BBU3900 and RRU3606. The BBU3900 supports -48 V DC input. The DC

RRU3606 supports -48 V DC input. The AC RRU3606 supports 220/110 V AC input.

Installing the DBS3900 on the indoor centralized installation rack or L-shaped support as a

macro base station makes it convenient for the operator to manage the spare components and

versions in a centralized manner and to perform maintenance and upgrade in future.

Installation Scenarios

Figure 2-1 shows the indoor centralized installation of the DBS3900.

Figure 2-1 Indoor Centralized Installation of the DBS3900

Auxiliary Device

Table 2-1 lists the auxiliary devices used in the indoor centralized installation of the

DBS3900.

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Table 2-1 Auxiliary devices used in the door distributed installation of the DBS3900

Component Description

Indoor centralized

installation rack/L-shaped

support

The indoor centralized installation rack or L-shaped support

is used for the BBU3900 and RRU3606 respectively. The

indoor centralized installation rack can be installed on the

ground, on a wall, or in a piled way. The L-shaped support

can be installed on the ground.

DCDU The DCDU is a DC power distribution box and supports one

-48 V power input and multiple -48 V outputs.

z If the DC RRU3606 works in 800 MHz, the 800 MHz band class is categorized in to bands A and

AB based on the type of the duplexer. The DC RRU3606 that works in 800 MHz AB and 450 MHz

and the AC RRU3606 cannot be installed on a rack in centralized mode.

z If the cabinet in the equipment room has enough free space, the BBU3900 can be installed in the

cabinet, and the RRU3606 can be installed on a wall. In this case, the indoor centralized installation

rack is not required, and therefore the space in the equipment room is saved.

z The auxiliary devices should be configured according to the actual situation in the equipment room.

2.2 Indoor Distributed Installation of the DBS3900

This describes the indoor distributed installation of the DBS3900. In this mode, the major

modules are the BBU3900 and RRU3606. The BBU3900 supports -48 V DC input. The DC

RRU3606 supports -48 V DC input. The AC RRU3606 supports 220/110 V AC input. The

BBU3900 can be installed in the free space in an indoor 19" cabinet and uses the transmission

and power supply equipment that is already available in the equipment room. The RRU3606

can be installed on a wall, close to the RF antenna. In this way, the cost on the feeder is cut,

the loss on the line is reduced, and the coverage is improved.

Installation Scenarios

Figure 2-2 shows the indoor distributed installation of the DBS3900.

2 Solutions for the Auxiliary Devices of the DBS3900

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Figure 2-2 Indoor distributed installation

Auxiliary Device

Table 2-2 lists the auxiliary devices used in the indoor distributed installation of the

DBS3900.

Table 2-2 Auxiliary devices used in the door distributed installation of the DBS3900

Component Description

Indoor centralized

installation rack or L-shaped

support

The indoor centralized installation rack or L-shaped support

is used for the BBU3900 and RRU3606 respectively. The

indoor centralized installation rack can be installed on the

ground, on a wall, or in a piled way. The L-shaped support

can be installed on the ground.

DCDU The DCDU is a DC power distribution box and supports one

-48 V power input and multiple -48 V outputs.

z If the distance between the RRU3606 and the BBU3900 exceeds 70 m [229.66 ft], independent

power supply equipment needs to be configured for the RRU3606.

z The auxiliary devices should be configured according to the actual situation in the equipment room.

2.3 Outdoor Centralized Installation of the DBS3900

This describes the outdoor centralized installation of the DBS3900. In this mode, the major

modules are the BBU3900 and RRU3606. The BBU3900 supports 220/110 V AC and -48 V

DC power input. The DC RRU3606 supports -48 V DC power input. The AC RRU3606

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supports 220/110 V AC power input. The BBU3900 can be installed in the APM30, and the

RRU3606 can be installed on a wall or pole close to the RF antenna. In this way, the cost of

network construction are reduced.

Installation Scenarios

Figure 2-3 shows the outdoor centralized installation of the DBS3900.

Figure 2-3 Outdoor centralized installation of the DBS3900

Auxiliary Device

Table 2-3 lists the auxiliary devices used in the outdoor centralized installation of the

DBS3900.

2 Solutions for the Auxiliary Devices of the DBS3900

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Table 2-3 Auxiliary devices used in the outdoor distributed installation of the DBS3900

Component Description

APM30 (220/110 V AC

type)

The APM30 of the 220/110 V AC type is an integrated

power system that is used for outdoor applications and

supports 220/110 V AC power input.

APM30 (-48 V DC type) The APM30 of the -48 V DC type is an integrated power

backup system that is used for outdoor applications and

supports -48 V DC power input.

Storage battery cabinet This component is optional and used for power backup.

When the mains supply fails, the storage battery cabinet

powers the equipment.

z If the distance between the RRU3606 and the BBU3900 exceeds 70 m [229.66 ft], independent

power supply equipment needs to be configured for the RRU3606.

z The auxiliary devices should be configured according to the actual situation and power input mode.

z The DC RRU3606 that works in 800 MHz AB and 450 MHz and the AC RRU3606 cannot be

installed in centralized mode.

2.4 Outdoor Distributed Installation of the DBS3900

This describes the outdoor distributed installation of the DBS3900. In this mode, the major

modules are the BBU3900 and RRU3606. The BBU3900 supports 220/110 V AC input and

-48 V DC input. The DC RRU3606 supports -48 V DC input. The AC RRU3606 supports

220/110 V AC input. The BBU3900 can be installed in the APM30, and the RRU3606 can be

installed on a wall or pole close to the RF antenna. In this way, the cost of network

construction is reduced.

Installation Scenarios

Figure 2-4 shows the outdoor distributed installation of the DBS3900.

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Figure 2-4 Outdoor distributed installation of the DBS3900

Auxiliary Device

Table 2-4 lists the auxiliary devices used in the indoor distributed installation of the

DBS3900.

Table 2-4 Auxiliary devices used in the door distributed installation of the DBS3900

Component Description

APM30 (220/110 V AC type) The APM30 of the 220/110 V AC type is an

integrated power system that is used for outdoor

applications and supports 220/110 V AC power

input.

APM30 (-48 V DC type) The APM30 of the -48 V DC type is an integrated

power backup system that is used for outdoor

applications and supports -48 V DC power input.

Storage battery cabinet This component is optional and used for power

backup. When the mains supply fails, the storage

battery cabinet powers the equipment.

2 Solutions for the Auxiliary Devices of the DBS3900

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z If the distance between the RRU3606 and the BBU3900 exceeds 70 m [229.66 ft], independent

power supply equipment needs to be configured for the RRU3606.

z The auxiliary devices should be configured according to the actual situation and power input mode.

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3 Configuration Principles of the DBS3900

About This Chapter

This describes the configuration principles of the DBS3900, covering the configurations of

the BBU3900, RRU3606, power supply, and satellite synchronization antenna.

3.1 Configuration Principles of the BBU3900

This describes the configuration principles of the BBU3900.

3.2 Configuration Principles of the RRU3606

This describes the configuration principles of the RRU3606.

3.3 Configuration Principles of the Power Supply

This describes the configuration principles of the power supply to the DBS3900.

3.4 Configuration Requirements of the RF Antennas

This section describes the general requirements for the configuration of RF antennas. In

practice, choose antennas according to the actual network planning solution.

3.5 Configuration Principles of the Satellite Synchronization Antenna

This describes the configuration principles of the satellite synchronization antenna.

3.6 Typical Configurations of the DBS3900

This describes several typical configurations of the DBS3900, which supports the 450 MHz,

800 MHz, 1900 MHz, and AWS band classes.

3.1 Configuration Principles of the BBU3900

This describes the configuration principles of the BBU3900.

The BBU3900 is the baseband processing core of the DBS3900.Generally, one BBU3900 is

configured for each DBS3900.

Configuration Principles

The mandatory modules are the CMPT, HCPM/HECM, UPEU, and FAN.

3 Configuration Principles of the DBS3900

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z CMPT configuration

− You can configure a maximum of two CMPTs, which work in 1+1 backup mode. Two

CMPTs cannot work at the same time.(when the BTS operates in the CDMA&LTE

Dual-Mode, the CMPT can only configure in slot 6.CL 双模配置模式下仅配置在

7号槽位）

− There are two types of CMPTs: CMPT (4-E1) and CMPT (8-E1). The CMPT (4-E1)

provides one port for 4-E1/T1 links and two FE ports. The CMPT (8-E1) provides

one port for 8-E1/T1 links and one FE port. Configure the CMPT depending on

capacity demands and service types.

z LBBP configuration

− You can configure a maximum of one LBBP in slot 2.

z HCPM configuration

− You can configure a maximum of six HCPMs.

− Three SFP ports on the HCPM are reserved for connecting hot-swappable optical

modules.

− The HCPM is configured with only one baseband processing chip CSM6700, which

can process 285 forward channels and 256 reverse channels.

z HECM configuration

− You can configure a maximum of six HECMs.

− Three SFP ports on the HECM are reserved for connecting hot-swappable optical

modules.

− The QCU1HECM is configured with only one baseband processing chip CSM6800,

which supports 192 subscribers.

− The QCU4HECM is configured with one or two baseband processing chips

CSM6850, each of which supports 284 subscribers.

z FAN configuration

You can configure a maximum of one FAN.

z UPEU configuration

− It is configured preferentially in slot 1 at the right lower corner of the BBU rack.

− You can configure a maximum of two UPEUs, which work in 1+1 backup mode.

The other modules are the following: the UTRP, UELP/UFLP, USCU, UEIU, and UBRI.

z UTRP configuration

− You can configure a maximum of two UTRPs, which work in load sharing mode or

1+1 backup mode.

− Each UTRP provides 8-E1/T1 links.

z USCU configuration

You can configure a maximum of one USCU, which supports single-mode or dual-mode

satellite cards, RGPS signals, and TOD and 1PPS signal sources.

z UELP configuration

Each UELP supports surge protection for 4-E1/T1 links

z UFLP configuration

Each UFLP supports surge protection for 2-FE links.

z UEIU configuration

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− You can configure a maximum of one UEIU in slot 0 at the right upper corner of the

BBU rack.

− Each UEIU provides two links for RS485 signals and provides eight links for dry

contact signals.

z UBRI configuration

− You can configure a maximum of one UBRI in slot 3 in the BBU rack.

− Each UBRI provides six CPRI ports.

− The UBRI supports a maximum of 48 sector carriers (24 PN-sharing + 24

non-PN-sharing).

The BBU3900 supports the hybrid configuration of HCPMs and HECMs so that it can support both 1X

services and EV-DO services.

3.2 Configuration Principles of the RRU3606

This describes the configuration principles of the RRU3606.

The RRU3606 is the remote RF unit of the DBS3900. A single RRU3606 supports a

maximum of eight carriers.

Configuration Principles

z One RRU3606 supports one sector.

z The DC RRU3606 supports the 450 MHz, 800 MHz, 1900 MHz, and AWS band classes.

z The AC RRU3606 support the 800 MHz A band classes.

z Generally, three to six RRU3606s are configured for each DBS3900.

3.3 Configuration Principles of the Power Supply

This describes the configuration principles of the power supply to the DBS3900.

The DBS3900 can be installed indoors or outdoors. Different installation modes require

different power supply configurations.

Indoor Installation of the DBS3900

When installed indoors, the DBS3900 can be installed in indoor centralized mode or indoor

distributed mode. The configuration principles of the power supply in these two modes are the

same, as listed in Table 3-1.

Table 3-1 Power supply configuration in indoor installation

Power Input

Method Power Supply Configuration

-48 V DC DCDU

3 Configuration Principles of the DBS3900

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Outdoor Installation of the DBS3900

When installed outdoors, the DBS3900 can be installed in outdoor centralized mode or

outdoor distributed mode. The configuration principles of the power supply in these two

modes are the same, as listed in Table 3-2.

Table 3-2 Power supply configuration in outdoor installation

Power Input Method Power Supply Configuration

220/110 V AC APM30 (220 V AC type), storage battery

cabinet (optional)

-48 V DC APM30 (-48 V DC type), storage battery

cabinet (optional)

3.4 Configuration Requirements of the RF Antennas

This section describes the general requirements for the configuration of RF antennas. In

practice, choose antennas according to the actual network planning solution.

The general guideline is as follows:

z For omni-directional cells, use omni-directional antennas.

z For directional cells, use directional bi-polarization antennas or directional

uni-polarization antennas according to the actual situation.

z For a large coverage area, use antennas with a great amount of gain (for omni-directional

cells or directional cells).

z For sector antenna configuration, use directional antennas or omni-directional antennas

according to the sector design in the network planning solution.

z For omni-directional cells, use two omni-directional uni-polarization antennas that work

in duplex mode.

3.5 Configuration Principles of the Satellite

Synchronization Antenna

This describes the configuration principles of the satellite synchronization antenna.

The DBS3900 supports GPS/GLONASS satellite cards. The configuration principles of the

satellite synchronization antenna in general situations and situations where system reliability

needs to be enhanced are as follows:

z Generally, one DBS3900 requires only one set of satellite synchronization antenna

equipment.

z When the DBS3900 is configured with only the CMPT, the system can receive only GPS

signals.

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z When the DBS3900 is configured with the USCU, the system supports GPS satellite

cards, GLONASS cards and mainstream cards. In such cases, the system supports the

RGPS signal port.

z The USCU supports GPS/GLONASS satellite cards. When the USCU is configured, the

CMPT does not support satellite cards.

3.6 Typical Configurations of the DBS3900

This describes several typical configurations of the DBS3900, which supports the 450 MHz,

800 MHz, 1900 MHz, and AWS band classes.

z The following configuration examples apply when the band class is 800 MHz, the power supply is

220 V AC, and the equipment is installed outdoors in distributed mode.

O (1) Configuration

In the O (1) configuration, the following components are configured:

z One BBU3900

z AMP30

z Storage battery cabinet (optional)

z Two omni-directional antennas

z One RRU3606

S (4/4/4) Configuration

In the S (4/4/4) configuration (three sectors, four carriers per sector), the following

components are configured:

z One BBU3900

z AMP30

z Storage battery cabinet (optional)

z For each sector, two directional uni-polarization antennas or one directional

bi-polarization antenna

z Three RRU3606s

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Product Description 4 Transmission and Networking of the BTS

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4-1

4 Transmission and Networking of the BTS

About This Chapter

This describes the transmission and networking of the BTS. The networking modes supported

by the BTS are the star networking mode, chain networking mode, and tree networking mode.

The BBU3900 and RRU3606 form a BTS. For convenience and clarification, the BBU3900 and

RRU3606 are collectively referred to as the BTS.

4.1 Star Networking Mode

This section describes the application scenarios, advantages, and disadvantages of the star

networking mode.

4.2 Chain Networking Mode

This section describes the application scenarios, advantages, and disadvantages of the chain

networking mode.

4.3 Tree Networking Mode

This section describes the application scenarios, advantages, and disadvantages of the tree

networking mode.

4.1 Star Networking Mode

This section describes the application scenarios, advantages, and disadvantages of the star

networking mode.

Application Scenarios

As the most commonly used networking mode, the star networking mode is especially

applicable to densely populated areas.

Figure 4-1 shows the star networking mode.

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Figure 4-1 Star networking mode

Advantages

z The BTS is directly connected to the BSC, thus guaranteeing simplicity in networking

and convenience in engineering, maintenance, and capacity expansion.

z Data transmission is implemented directly between the BTS and the BSC, and therefore

signals do not have to go through many nodes. In this way, the reliability of the line is

high.

Disadvantages

The star networking modes require more transmission resources than other networking

modes.

4.2 Chain Networking Mode

This section describes the application scenarios, advantages, and disadvantages of the chain

networking mode.

Application Scenarios

The chain networking mode is applicable to sparsely populated strip areas, for example, areas

along superhighways and railways.

Figure 4-2 shows the chain networking mode.

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Figure 4-2 Chain networking mode

Advantages

The chain networking mode helps reduce the costs of transmission equipment, of engineering

construction, and of transmission link rental.

Disadvantages

z Signals go through a large number of nodes, and therefore the line reliability is low.

z Faults in upper-level BTSs may affect the normal operation of lower-level BTSs.

z The number of chain levels cannot exceed three.

4.3 Tree Networking Mode

This section describes the application scenarios, advantages, and disadvantages of the tree

networking mode.

Application Scenarios

The tree networking mode is applicable to areas where network structures, site distribution,

and subscriber distribution are complicated, for example, areas where subscribers are widely

distributed and hot spots gather.

Figure 4-3 shows the tree networking mode.

4 Transmission and Networking of the BTS

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Figure 4-3 Tree networking mode

Advantages

The advantage of the tree networking mode over the star networking mode is that the former

lowers the costs of the transmission equipment, the costs of engineering projects, and the

rental of transmission links.

Disadvantages

z Signals travel through many nodes, which cause low transmission reliability and

construction and maintenance difficulties.

z Faults in upper-level BTSs may affect the normal operation of lower-level BTSs.

z Capacity expansion is difficult because it may require extensive network reconstruction.

z The number of tree levels cannot exceed three.

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5-1

5 Operation and Maintenance of the BTS

About This Chapter

This section describes the operation and maintenance of the BTS. The operation and

maintenance of the BTS refers to the management, monitoring, and maintenance of the BTS.

The BTS provides various methods and platforms for operation and maintenance to cater to

different scenarios.

5.1 Operation and Maintenance Modes of the BTS

This section describes the operation and maintenance modes of the BTS. The BTS can be

maintained through the LMT, through the centralized network management system, or locally.

5.2 Operation and Maintenance Functions of the BTS

The OM system of the BTS supports equipment management, software management,

configuration management, service management, performance management, security

management, alarm management, and environment monitoring.

5.1 Operation and Maintenance Modes of the BTS

This section describes the operation and maintenance modes of the BTS. The BTS can be

maintained through the LMT, through the centralized network management system, or locally.

Figure 5-1 shows the networking of the operation and maintenance system.

5 Operation and Maintenance of the BTS

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Figure 5-1 Networking of the operation and maintenance system

The BTS supports the following operation and maintenance modes:

z Maintenance through the centralized network management system: The M2000,

Huawei's centralized management system for wireless networks, can be used to maintain

BTSs through the operation and maintenance network. The M2000 supports the

operation and maintenance of sites, cells, carriers, channels, and boards. Centralized

network management is used for the maintenance of multiple BTSs.

z Maintenance through the LMT: The LMT can be used to maintain the BTS through the

operation and maintenance link provided by the Abis interface between the BSC and the

BTS. The LMT communicates with the BSC through a LAN. Through the LMT, you can

perform operation and maintenance for the sites, cells, carriers, channels, and boards.

The LMT is used to configure and adjust the data of the BSC and BTS.

z Local maintenance: The maintenance terminal of the BTS is used to maintain the BTS

locally through Ethernet. Through the maintenance terminal of the BTS, you can perform

operation and maintenance for the sites, cells, carriers, baseband, channels, and boards.

The maintenance terminal is used to maintain single BTS.

5.2 Operation and Maintenance Functions of the BTS

The OM system of the BTS supports equipment management, software management,

configuration management, service management, performance management, security

management, alarm management, and environment monitoring.

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Equipment Management

Equipment management refers to equipment maintenance and data configuration. The detailed

functions are as follows:

z Equipment maintenance refers to maintenance of the equipment or boards, for example,

board resetting, management of equipment status, equipment self-testing, active/standby

switchovers, and time calibration.

z Data configuration refers to configuration, querying, and backing up of equipment

parameters, for example, configuration of the BTS hardware, configuration of clock

parameters, configuration of algorithm parameters, and configuration of RF parameters.

Software Management

The functions involved in software management are as follows:

z Software activation

z Checks of compatibility between software and hardware versions

z Version management, for example, querying of hardware and software versions

z Upgrades of software versions

Configuration Management

The functions involved in configuration management are as follows:

z Consistency checks for added, deleted, and Changed data of the BTS

z Automatic data backup

z Dynamic and static modes for data configuration. In dynamic mode, changes made to

data take effect immediately. In static mode, changes made to data take effect after the

BTS is reset.

Service Management

The functions involved in service management are as follows:

z The BTS provides the boards and environment monitoring device with OM functions

such as parameter configuration and alarm querying.

z The BTS supports comprehensive hardware installation and self-testing functions.

Performance Management

The functions involved in performance management are as follows:

z The system monitors the performance of the internal and external communication

network. Alarms are generated when the performance becomes poor.

z The system monitors traffic on each port and collects technical data of each port.

z The system supports the monitoring of the usage of key components such as the CPU.

Security Management

Security management involves functions such as connection management between the BTS

software and the OMC, subscriber authentication, and bi-directional resolution of encryption

and interface messages.

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Alarm Management

Alarm management involves equipment alarm management and environment alarm

management.

z Equipment alarm management

The system detects and reports faults or exceptions in the equipment in real time.

Through the alarm management function of the LMT or M2000, the alarm information is

displayed, and suggestions on handling the alarms are given.

The alarm management system of the M2000 can be connected to an alarm box through

a serial port and supports audible or visual alarms. The alarms can be subscribed to and

forwarded to the mobile phones or pagers of maintenance personnel so that the

maintenance personnel can handle the faults in time.

z Environment alarm management

The BTS equipment rooms are generally unmanned and distributed across wide areas.

The equipment works in adverse environments and is subject to emergencies. The BTS

has a powerful environment monitoring system, which guarantees the normal running of

the equipment and helps you deal with emergencies.

The functions involved in alarm management are as follows:

z Alarm detection

z Alarm reporting

z Alarm masking

z Alarm acknowledgement

z Alarm pre-processing

z Alarm correlation processing

z Help information on alarm handling

Environment Monitoring

The BTS supports comprehensive environment monitoring functions.

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6-1

6 Technical Specifications of the DBS3900

About This Chapter

This describes the technical specifications of the DBS3900.

6.1 Performance Specifications of the DBS3900

This describes the performance specifications of the DBS3900.

6.2 Physical and Electrical Specifications of the DBS3900

This describes the physical and electrical specifications of the DBS3900.

6.3 Reliability Specifications of the DBS3900

This describes the reliability specifications of the DBS3900.

6.4 Lightning Protection Specifications of the DBS3900

This describes the lightning protection specifications of the DBS3900 in terms of lightning

specifications of the power input port, E1/T1 input port, GPS RF signal input port, dry contact

port, and RF antenna port.

6.5 Safety Specifications of the DBS3900

This describes the safety specifications of the DBS3900.

6.6 EMC Specifications of the DBS3900

This describes the EMC specifications of the DBS3900.

6.7 Environmental Specifications of the DBS3900

This describes the requirements for the storage environment, transportation environment, and

running environment of the DBS3900.

6.1 Performance Specifications of the DBS3900

This describes the performance specifications of the DBS3900.

6 Technical Specifications of the DBS3900

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z The transmit power is the maximum value measured at the RF port of the cabinet.

z The multi-carrier transmit power refers to the total power instead of the power of each carrier.

z The signal receive sensitivity is the main and diversity receive sensitivity at RC3.

z The DC RRU3606 supports the 450 MHz, 800 MHz, 1900 MHz, and AWS band classes.

z The AC RRU3606 supports the 800 MHz A and 2100 MHz band classes.

Transmit and Receive Specifications

The transmit and receive specifications refer to the technical parameters of the transceiver of

the DBS3900. The transmit and receive specifications of the DBS3900 in different band

classes are as follows:

z Transmit and receive specifications in band class 0

Table 6-1 and Table 6-2 list the performance specifications in band class 0 (800 MHz).

Table 6-1 Transmit specifications in band class 0 (800 MHz)

Item Specification

Operating band class 869 MHz to 894 MHz

Channel bandwidth 1.2288 MHz

Channel precision 30 kHz

Frequency tolerance ≤ ± 0.05 ppm

Transmit power ≤ 80 W

Table 6-2 Receive specifications in band class 0 (800 MHz)

Item Specification

Operating band class 824 MHz to 849 MHz

Channel bandwidth 1.2288 MHz

Channel precision 30 kHz

Signal receiving

sensitivity

Better than -130 dBm (main and diversity receiving at RC3)

z Transmit and receive specifications in band class 1

Table 6-3 and Table 6-4 list the performance specifications in band class 1 (1900 MHz).

Table 6-3 Transmit specifications in band class 1 (1900 MHz)

Item Specification

Operating band class 1930 MHz to 1990 MHz

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Item Specification

Channel bandwidth 1.2288 MHz

Channel precision 50 kHz

Frequency tolerance ≤ ± 0.05 ppm

Transmit power ≤ 60 W

Table 6-4 Receive specifications in band class 1 (1900 MHz)

Item Specification

Operating band class 1850 MHz to 1910 MHz

Channel bandwidth 1.2288 MHz

Channel precision 50 kHz

Signal receiving

sensitivity

Better than -127 dBm (main and diversity receiving at RC3)

z Transmit and receive specifications in band class 5

Table 6-5 and Table 6-6 list the performance specifications in band class 5 (450 MHz).

Table 6-5 Transmit specifications in band class 5 (450 MHz)

Item Specification

Operating band class 460 MHz to 470 MHz

Channel bandwidth 1.2288 MHz

Channel precision 25 kHz, 20 kHz

Frequency tolerance ≤ ± 0.05 ppm

Transmit power ≤ 60 W

Table 6-6 Receive specifications in band class 5 (450 MHz)

Item Specification

Operating band class 450 MHz to 460 MHz

Channel bandwidth 1.2288 MHz

Channel precision 25 kHz, 20 kHz

Signal receiving

sensitivity

Better than -127 dBm (main and diversity receiving at RC3)

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z Transmit and receive specifications in band class 14

Table 6-7 and Table 6-8 list the performance specifications in band class 14 (1900 MHz).

Table 6-7 Transmit specifications in band class 14 (1900 MHz)

Item Specification

Operating band class 1930 MHz to 1995 MHz

Channel bandwidth 1.2288 MHz

Channel precision 50 kHz

Frequency tolerance ≤ ± 0.05 ppm

Transmit power ≤ 60 W

Table 6-8 Receive specifications in band class 14 (1900 MHz)

Item Specification

Operating band class 1850 MHz to 1915 MHz

Channel bandwidth 1.2288 MHz

Channel precision 50 kHz

Signal receiving

sensitivity

Better than -127 dBm (main and diversity receiving at RC3)

z Receive and transmit specifications in band class 15 (AWS)

Table 6-9 and Table 6-10 list the performance specifications in band class 15 (AWS) of

CDMA

Table 6-9 Transmit specifications in band class 15 (AWS) of CDMA

Item Specification

Operating band class 2110 MHz to 2155 MHz

Channel bandwidth 1.2288 MHz

Channel precision 50 kHz

Frequency tolerance ≤ ± 0.05 ppm

Transmit power ≤ 60 W

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Table 6-10 Receive specifications in band class 15 (AWS) of CDMA

Item Specification

Operating band class 1710 MHz to 1755 MHz

Channel bandwidth 1.2288 MHz

Channel precision 50 kHz

Signal receiving

sensitivity

Better than -127 dBm (main and diversity receiving at RC3)

Table 6-11 and Table 6-12 list the performance specifications in band class 15 (AWS) of

LTE

Table 6-11 Transmit specifications in band class 15 (AWS) of LTE

Item Specification

Operating band class 2110 MHz to 2155 MHz

Channel bandwidth 5 MHz

Channel precision 100 kHz

Frequency tolerance ≤ ± 0.05 ppm

Transmit power ≤ 60 W

Table 6-12 Receive specifications in band class 15 (AWS) of LTE

Item Specification

Operating band class 1710 MHz to 1755 MHz

Channel bandwidth 5 MHz

Channel precision 100 kHz

Signal receiving

sensitivity

Better than -104 dBm

RRU3606 Cascading Specifications

Table 6-11 lists the RRU3606 cascading specifications of the DBS3900.

Table 6-13 RRU3606 cascading specifications of the DBS3900

Item Specification

Maximum distance of single-level

cascading

70 km [43.50 mi]

6 Technical Specifications of the DBS3900

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Item Specification

Maximum number of cascading levels Three

Maximum total cascading distance 90 km [55.93 mi]

BER Threshold Specifications of BTS Transmission Links

The bit error rates (BERs) of transmission links has the same impact on the UNI and IMA

modes. Table 6-12 shows the BER threshold specifications of BTS transmission links.

Table 6-14 BER threshold specifications of BTS transmission links

Type Maximum BER Threshold

CDMA2000 1X voice services 2 x 10e-5

Packet services 2 x 10e-6

Maintenance function 5 x 10e-5

6.2 Physical and Electrical Specifications of the DBS3900

This describes the physical and electrical specifications of the DBS3900.

6.2.1 Technical Specifications of the BBU3900

This section describes the technical specifications of the BBU3900 in terms of the working

voltage, power consumption, weight, dimensions, and temperature and humidity in the

running environment.

6.2.2 Technical Specifications of the RRU3606

This describes the technical specifications of the RRU3606 in terms of the working voltage,

power consumption, weight, dimensions, and temperature and humidity in the running

environment.

6.2.1 Technical Specifications of the BBU3900

This section describes the technical specifications of the BBU3900 in terms of the working

voltage, power consumption, weight, dimensions, and temperature and humidity in the

running environment.

Table 6-13 lists the technical specifications of the BBU3900.

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Table 6-15 Technical specifications of the BBU3900

Item Specification

Voltage z +24 V DC (+21.6 V DC to +29 V DC)

z -48 V DC (-57 V DC to -38.4 V DC)

NOTE

There are two types of UPEU, respectively supporting

-48 V DC and +24 V DC power input.

Power consumption full configuration: ≤ 250 W

Weight z Empty cabinet (including the FAN and UPEU)

≤ 8 kg (17.64 lb)

z Full configuration: ≤ 12 kg (26.46 lb)

Cabinet dimensions (height x width x

depth)

86 mm (3.39 in.) x 442 mm (17.40 in.) x 310 mm

(12.20 in.), as shown in Figure 6-1.

Temperature -10°C(14°F) to +55°C(131°F)

Relative humidity 5%RH to 95%RH

Figure 6-1 Dimensions of the BBU3900

6.2.2 Technical Specifications of the RRU3606

This describes the technical specifications of the RRU3606 in terms of the working voltage,

power consumption, weight, dimensions, and temperature and humidity in the running

environment.

Table 6-14 lists the technical specifications of the DC RRU3606.

Table 6-16 Technical specifications of the RRU3606 (DC type)

Item Specification

Voltage -48 V DC (-36 V DC to -57 V DC)

6 Technical Specifications of the DBS3900

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Item Specification

Power consumption ≤ 295 W

NOTE

The power consumption is measured when the RRU3606 works at

the 800 MHz band.

≤ 272 W

NOTE

The power consumption is measured when the RRU3606 works at

the AWS band.

Weight z Weights of the RRU that works in the 800 MHz AB and

450 MHz band classes:

≤ 19 kg (41.90 lb) (module + shell)

z Weights of the RRU that works in other band classes:

≤ 17 kg (37.49 lb) (with the shell)

Cabinet dimensions (height

x width x depth)

Dimensions of the RRU that works in the 800 MHz AB and

450 MHz band classes:

z 485 mm (19.09 in.) x 285 mm (11.22 in.) x 170 mm (6.69

in.) (with the shell)

z 480 mm (18.90 in.) x 270 mm (10.63 in.) x 140 mm (5.51

in.) (without the shell)

Dimensions of the RRU that works in other band classes:

z 485 mm (19.09 in.) x 285 mm (11.22 in.) x 170 mm (6.69

in.) (with the shell)

z 480 mm (18.90 in.) x 270 mm (10.63 in.) x 140 mm (5.51

in.) (without the shell)

Ambient temperature for

operation

-40oC (-40oF) to +52oC (125.6oF) (solar radiation not

considered)

Relative humidity for

operation

5% RH to 100% RH

Table 6-15 lists the technical specifications of the AC RRU3606.

Table 6-17 Technical specifications of the RRU3606 (AC type)

Item Specification

Voltage single-phase 220 V AC (90 V AC to 290 V AC)

single-phase 110 V AC (90 V AC to 290 V AC)

Power consumption 333 W

Weight ≤ 22.5 kg [49.6 lb] (with a shell)

Cabinet dimensions (height

x width x depth)

485 mm [19.21 in.] x 285 mm [11.02 in.] x 250 mm [9.84

in.] (with a shell)

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Item Specification

Ambient temperature for

running

-40°C [-40°F] to +52°C [125.6°F] (solar radiation not

considered)

Relative humidity for

running

5% RH to 100% RH

6.3 Reliability Specifications of the DBS3900

This describes the reliability specifications of the DBS3900.

Table 6-16 lists the reliability specifications of the DBS3900.

Table 6-18 Reliability specifications of the DBS3900

Item Specification

Availability ≥ 99.999%

Mean Time Between Failures (MTBF) BBU3900: ≥ 280000 hours

RRU3606: ≥ 260000 hours

Mean Time To Repair (MTTR) ≤ 1 hour (excluding the time needed

for the engineers to arrive at the site)

≤ 3 hours (including the time needed

for the engineers to arrive at the site)

6.4 Lightning Protection Specifications of the DBS3900

This describes the lightning protection specifications of the DBS3900 in terms of lightning

specifications of the power input port, E1/T1 input port, GPS RF signal input port, dry contact

port, and RF antenna port.

Table 6-17 lists the lightning protection specifications of the DBS3900.

Table 6-19 Lightning protection specifications of the DBS3900

Item Specification

AC power input port Differential mode: ±60 kA, 8/20 us

Common mode: ±60 kA, 8/20 us

DC power input port Differential mode: ±2kA, 1.2/50 us

Common mode: ±4kA, 1.2/50 us

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Item Specification

BBU: FE port (with UELP) Differential mode: ±1kA, 8/20 us

Common mode: ±2kA, 8/20 us

BBU: T1/E1 input port (with UELP) Differential mode: ±3 kA, 8/20 us

Common mode: ±5 kA, 8/20 us

GPS RF signal input port Differential mode: ±8 kA, 8/20 us

Common mode: ±40 kA, 8/20 us

Dry contact port Differential mode: ±250 A, 8/20 us

Common mode: ±250 A, 8/20 us

DC power input port of the RRU3606 Differential mode: ±10 kA, 8/20 us

Common mode: ±15 kA, 8/20 us

Differential mode: ±3 kA, 8/20 us

Common mode: ±5 kA, 8/20 us

AC power input port of the RRU3606

NOTE

If the external lightning protection box is

configured, the lightning protection level can

reach 60 KA (8/20 us).

RF antenna port Differential mode: ±8 kA, 8/20 us

Common mode: ±40 kA, 8/20 us

6.5 Safety Specifications of the DBS3900

This describes the safety specifications of the DBS3900.

The DBS3900 complies with the following safety standards:

z GB4943-2000: Safety of information technology equipment.

z IEC60950 Safety of information technology equipment Including Electrical Business

Equipment.

z IEC60215 Safety requirement for radio transmitting equipment.

z CAN/CSA-C22.2 No 1-M94 Audio, Video and Similar Electronic Equipment.

z CAN/CSA-C22.2 No 950-95 Safety of Information Technology Equipment Including

Electrical Business Equipment.

z UL 1419 Standard for Professional Video and Audio Equipment.

z 73/23/EEC Low Voltage Directive.

z UL 1950 Safety of information technology equipment Including Electrical Business

Equipment.

z IEC60529 Classification of degrees of protection provided by enclosure. (IP Code).

z GOST 30631-99. General Requirements to machines, instruments and other industrial

articles on stability to external mechanical impacts while operating.

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z GOST R 50829-95. Safety of radio stations, radio electronic equipment using

transceivers and their components. The general requirements and test methods.

z GOST 12.2.007.0-75. Electrotechnical devices. The general safety requirements.

6.6 EMC Specifications of the DBS3900

This describes the EMC specifications of the DBS3900.

The DBS3900 complies with the following EMC standards:

z Council Directive 1999/5/EC: Commission communication in the framework of the

implementation of Council Directive 1999/5/EC.

z Council directive 2004/108/EC: DIRECTIVE 2004/108/EC OF THE EUROPEAN

PARLIAMENT AND OF THE COUNCIL of 15 December 2004.

z CISPR 22: "Limits and methods of measurement of radio disturbance characteristics of

information technology equipment".

z IEC 61000-6-1: "Electromagnetic compatibility (EMC) Part 6: Generic standards

Section 1: Immunity for residential, commercial and light-industrial environments".

z IEC 61000-6-3: "Electromagnetic compatibility (EMC) Part 6: Generic standards

Section 3: mission standard for residential, commercial and light industrial

environments".

z IEC 61000-3-2: "Electromagnetic compatibility (EMC) - Part 3: Limits Section 2:

Limits for harmonic current emissions (equipment input current = 16 A) ".

z IEC 61000-3-3: "Electromagnetic compatibility (EMC) - Part 3: Limits Section 3:

Limitation of voltage fluctuations and flicker in low-voltage supply systems for

equipment with rated current = 16 A".

z IEC 61000-4-2: " Electromagnetic compatibility (EMC) - Part 4: Testing and

measurement techniques Section 2: Electrostatic discharge immunity test".

z IEC 61000-4-3: " Electromagnetic compatibility (EMC) - Part 4: Testing and

measurement techniques Section 3: Radiated, radio-frequency electromagnetic field

immunity test".

z IEC 61000-4-4: " Electromagnetic compatibility (EMC) - Part 4: Testing and

measurement techniques Section 4: Electrical fast transient/burst immunity test".

z IEC 61000-4-5: " Electromagnetic compatibility (EMC) - Part 4: Testing and

measurement techniques Section 5: Surge immunity test".

z IEC 61000-4-6: " Electromagnetic compatibility (EMC) - Part 4: Testing and

measurement techniques Section 6: Immunity to contacted disturbances, induced by

radio frequency fields".

z IEC 61000-4-11: " Electromagnetic compatibility (EMC) - Part 4: Testing and

measurement techniques Section 11: Voltage dips, short interruptions and voltage

variations. Immunity tests".

z IEC61000-3-2: Electromagnetic compatibility: Part3: limits Section2: limits for

harmonic current emissions(equipment input current less than or equal to 16A per

phase).

z IEC61000-3-3: Electromagnetic compatibility: Part3: limits Section3: limitation of

voltage fluctuations and flicker in low-voltage supply systems for equipment with rated

current less than or equal to 16A.

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z ETSI 301 489-1: Electromagnetic compatibility and Radio spectrum Matters (ERM);

ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 1:

Common technical requirements.

z ETSI 301 489-26: ElectroMagnetic compatibility and Radio spectrum Matters (ERM);

ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part

26: Specific conditions for IMT-2000 CDMA Multi-carrier Base Stations and ancillary

equipment.

z CFR 47, FCC Part 15-Radio Frequency Device.

z ITU-R Rec. SM.329-10: "Spurious emissions".

z IEC 61024-1: Protection of structures against lightning.

z IEC 61312-1: Protection Against Lightning Electromagnetic Impulse Part I: General

Principles.

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

Building.

z ITU-T K.44 (2003): SERIES K: PROTECTION AGAINST INTERFERENCE

Resistibility test for telecommunication equipment exposed to overvoltages and

overcurrents - Basic recommendation.

z ETS 300 253(1995) Equipment Engineering; Earthing and bonding of

telecommunication equipment in telecommunication centres.

z YD/T5098-2005: Design specifications about the overvoltage protection engineering of

the telecommunications office.

6.7 Environmental Specifications of the DBS3900

This describes the requirements for the storage environment, transportation environment, and

running environment of the DBS3900.

The DBS3900 complies with the following environmental standards:

z ETSI EN 300 019-1-1 Class1.2

z ETSI EN 300 019-1-2 Class2.3

z ETSI EN 300 019-1-4 Class4.1

6.7.1 Storage Environment

This describes the requirements for the storage environment of the DBS3900.

6.7.2 Transportation Environment

This describes the requirements for the transportation environment of the DBS3900.

6.7.3 Requirements for the Running Environment of the DBS3900

This describes the requirements for the running environment of the equipment in terms of

climatic requirements, waterproofing requirements, biological requirements, and requirements

for air purity and mechanical stress.

6.7.1 Storage Environment

This describes the requirements for the storage environment of the DBS3900.

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Climatic Requirements

Table 6-18 lists the climatic requirements for the storage environment of the equipment.

Table 6-20 Climatic requirements for the storage environment of the equipment

Item Range

Temperature -40oC [-40oF] to +70oC [+158oF]

Temperature change rate ≤ 1

oC/min

Relative humidity BBU: 5%RH to 95%RH

RRU: 5%RH to 100%RH

Air pressure 70 kPa to 106 kPa

Solar radiation ≤ 1120 W/m2

Thermal radiation ≤ 600 W/m2

Wind speed BBU: ≤ 30 m/s

RRU: ≤ 50 m/s

Waterproofing Requirements

The waterproofing requirements for the storage environment of the equipment are as follows:

z If possible, store the equipment indoors and ensure that:

− No water accumulates on the ground or may drop onto the package of the equipment.

− The equipment is kept away from devices that may leak water, for example,

automatic fire-fighting devices and heating devices.

z If the equipment has to be stored outdoors, ensure that:

− The package is intact.

− Appropriate waterproofing measures are taken to prevent rainwater from entering the

package.

− No water accumulates on the ground or may drop onto the package of the equipment.

− The package is not exposed directly to sunlight.

Biological Requirements

The biological requirements for the storage environment of the equipment are as follows:

z The environment is not conducive to the growth of microorganisms, such as fungi.

z The equipment is protected from rodents, such as mice.

Air Purity Requirements

The air purity requirements for the storage environment of the equipment are as follows:

z The air is free from explosive, electroconductive, magnetoconductive, and corrosive

dust.

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z The concentration of mechanically active substances complies with the requirements

listed in Table 6-19.

Table 6-21 Requirements for the concentration of mechanically active substances in the storage

environment of the equipment

Concentration

Mechanically

Active Substance Unit BBU RRU

Suspended dust mg/m3 ≤ 5 ≤ 5

Precipitable dust mg/m2·h ≤ 20 ≤ 500

Grit mg/m3 ≤ 300 ≤ 300

NOTE

z The diameter of a suspended dust particle is not greater than 75 µm.

z The diameter of a precipitable dust particle is not smaller than 75 µm and not greater than 150 µm.

z The diameter of a piece of grit is not smaller than 150 µm and not greater than 1000 µm.

z The concentration of chemically active substances complies with the requirements listed

in Table 6-20.

Table 6-22 Requirements for the concentration of chemically active substances in the storage

environment of the equipment

Chemically Active

Substance Unit Concentration

SO2 mg/m3 ≤ 0.30

H2S mg/m3 ≤ 0.10

NO2 mg/m3 BBU: ≤ 0.50

RRU: ≤ 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

Table 6-21 and Table 6-22 list the requirements for the mechanical stress in the storage

environment of the equipment.

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Table 6-23 Requirements for the mechanical stress in the storage environment of the BBU

Item Sub-item Range

Offset ≤ 7.0 mm [0.28

in.]

Acceleration - ≤ 20 m/s

Sinusoidal vibration

Frequency range 2 Hz to 9 Hz 9 Hz to 200 Hz

Impact response

spectrum II

≤ 250 m/s2 Unsteady impact

Static payload ≤ 5 kPa

NOTE

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

equipment under specified impact excitation. Impact response spectrum II means that the duration of

semi-sine impact response spectrum is 6 ms.

z The static payload refers to the capability of the packed equipment to bear the weight from above in

the stipulated stack method.

Table 6-24 Requirements for the mechanical stress in the storage environment of the RRU

Item Sub-item Range

Offset ≤ 1.5 mm [0.06

in.]

Acceleration - ≤ 5 m/s

Sinusoidal vibration

Frequency range 2 Hz to 9 Hz 9 Hz to 200 Hz

Impact response

spectrum II

≤ 250 m/s2 Unsteady impact

Static payload ≤ 5 kPa

NOTE

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

equipment under specified impact excitation. Impact response spectrum II means that the duration of

semi-sine impact response spectrum is 6 ms.

z The static payload refers to the capability of the packed equipment to bear the weight from above in

the stipulated stack method.

6.7.2 Transportation Environment

This describes the requirements for the transportation environment of the DBS3900.

Climatic Requirements

Table 6-23 lists the climatic requirements for the transportation environment of the

equipment.

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Table 6-25 Climatic requirements for the transportation environment of the equipment

Item Range

Temperature -40oC [-40oF] to +70oC [+158oF]

Temperature change rate ≤ 3

oC/min

Relative humidity 5% RH to 95% RH

Air pressure 70 kPa to 106 kPa

Solar radiation ≤ 1120 W/m2

Thermal radiation ≤ 600 W/m2

Wind speed BBU: ≤ 30 m/s

RRU: ≤ 50 m/s

Waterproofing Requirements

The waterproofing requirements for the transportation environment of the equipment are as

follows:

z The package is intact.

z Appropriate waterproofing measures are taken to prevent rainwater from entering the

package.

z No water accumulates in the vehicle.

Biological Requirements

The biological requirements for the transportation environment of the equipment are as

follows:

z The environment is not conducive to the growth of microorganisms, such as fungi.

z The equipment is protected from rodents, such as mice.

Air Purity Requirements

The requirements for the air purity in the transportation environment of the equipment are as

follows:

z The air is free from explosive, electroconductive, magnetoconductive, and corrosive

dust.

z The concentration of mechanically active substances complies with the requirements

listed in Table 6-24.

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Table 6-26 Requirements for the concentration of mechanically active substances in the

transportation environment of the equipment

Concentration

Mechanically

Active Substance Unit BBU RRU

Suspended dust mg/m3 No requirement ≤ 35

Precipitable dust mg/m2·h ≤ 3.0 ≤ 0.2

Grit mg/m3 ≤ 100 ≤ 30

NOTE

z The diameter of a suspended dust particle is not greater than 75 µm.

z The diameter of a precipitable dust particle is not smaller than 75 µm and not greater than 150 µm.

z The diameter of a piece of grit is not smaller than 150 µm and not greater than 1000 µm.

z The concentration of chemically active substances complies with the requirements listed

in Table 6-25.

Table 6-27 Requirements for the concentration of chemically active substances in the

transportation environment of the equipment

Chemically Active

Substance Unit Concentration

SO2 mg/m3 ≤ 0.30

H2S mg/m3 ≤ 0.10

NO2 mg/m3 BBU: ≤ 0.50

RRU: ≤ 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

Table 6-26 and Table 6-27 list the requirements for the mechanical stress in the transportation

environment of the equipment.

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Table 6-28 Requirements for the mechanical stress in the transportation environment of the BBU

Item Sub-item Range

Offset ≤ 7.5 mm

[0.30 in.]

- -

Acceleration - ≤ 20.0

m/s2

≤ 40. 0

m/s2

Sinusoidal

vibration

Frequency

range

2 Hz to 9 Hz 9 Hz to 200 Hz 200 Hz to 500

Acceleration

spectral density

10 m2/s3 3 m2/s3 1 m2/s3 Random

vibration

Frequency

range

2 Hz to 9 Hz 9 Hz to 200 Hz 200 Hz to 500

Impact response

spectrum II

≤ 300 m/s2 Unsteady

impact

Static payload ≤ 10 kPa

NOTE

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

equipment under specified impact excitation. Impact response spectrum II means that the duration of

semi-sine impact response spectrum is 6 ms.

z The static payload refers to the capability of the packed equipment to bear the weight from above in

the stipulated stack method.

Table 6-29 Requirements for the mechanical stress in the transportation environment of the RRU

Item Sub-item Range

Offset ≤ 3.5 mm

[0.14 in.]

- -

Acceleration - ≤ 10 m/s

2 ≤ 15 m/s

Sinusoidal

vibration

Frequency

range

2 Hz to 9 Hz 9 Hz to 200 Hz 200 Hz to 500

Acceleration

spectral density

30 m2/s3 3 m2/s3 1 m2/s3 Random

vibration

Frequency

range

2 Hz to 10 Hz 10 Hz to 200

200 Hz to 500

Impact response

spectrum II

≤ 250 m/s2 Unsteady

impact

Static payload ≤ 10 kPa

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Item Sub-item Range

NOTE

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

equipment under specified impact excitation. Impact response spectrum II means that the duration of

semi-sine impact response spectrum is 6 ms.

z The static payload refers to the capability of the packed equipment to bear the weight from above in

the stipulated stack method.

6.7.3 Requirements for the Running Environment of the DBS3900

This describes the requirements for the running environment of the equipment in terms of

climatic requirements, waterproofing requirements, biological requirements, and requirements

for air purity and mechanical stress.

Climatic Requirements

Table 6-28 lists the climatic requirements for the running environment of the equipment.

Table 6-30 Climatic requirements for the running environment of the equipment

Item Range

Temperature BBU: -10°C [+14°F] to +55°C [+131°F]

RRU: -40°C [-40°F] to +52°C [+125.6°F]

(solar radiation not considered)

Temperature change rate ≤ 3oC/min

Relative humidity BBU: 5% RH to 95% RH

RRU: 5% RH to 100% RH

Air pressure 70 kPa to 106 kPa

Solar radiation BBU: ≤ 700 W/m2

RRU: ≤ 1120 W/m2

Thermal radiation ≤ 600 W/m2

Wind speed BBU: ≤ 1 m/s

RRU: ≤ 67 m/s

NOTE

The temperature and humidity should be measured 1.5 m [4.92 ft] above the ground and 0.4 m [1.31 ft]

away from the front of the cabinet when no protective board is installed at the front and rear of the

cabinet.

Biological Requirements

The biological requirements for the running environment of the equipment are as follows:

z The environment is not conducive to the growth of fungus.

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z The equipment is protected from rodents, such as mice.

Requirements for Air Purity

The requirements for air purity in the running environment of the equipment are as follows:

z The air is free from explosive, electroconductive, magnetoconductive, and corrosive

dust.

z For the BBU, the concentration of mechanically active substances complies with the

requirements listed in Table 6-29.

Table 6-31 Requirements for the concentration of mechanically active substances in the running

environment of the equipment

Mechanically Active

Substance Unit Concentration

Dust particles Particles/m3 ≤ 3 x 104

(no visible dust accumulated

on desktops within three

days)

The diameter of a dust particle is not smaller than 5 µm.

z The concentration of chemically active substances complies with the requirements listed

in Table 6-30 and Table 6-31.

Table 6-32 Requirements for the concentration of chemically active substances in the running

environment of the BBU

Chemically Active

Substance Unit Concentration

SO2 mg/m3 ≤ 0.20

H2S mg/m3 ≤ 0.006

NH3 mg/m3 ≤ 0.05

Cl2 mg/m3 ≤ 0.01

Table 6-33 Requirements for the concentration of chemically active substances in the running

environment of the RRU

Chemically Active

Substance Unit Concentration

SO2 mg/m3 ≤ 0.30

H2S mg/m3 ≤ 0.10

NH3 mg/m3 ≤ 1.00

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Chemically Active

Substance Unit Concentration

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

Requirements for Mechanical Stress

Table 6-32 and Table 6-33 list the requirements for the mechanical stress in the running

environment of the equipment.

Table 6-34 Requirements for the mechanical stress in the running environment of the BBU

Item Sub-Item Range

Offset ≤ 3.5 mm [0.14 in.] -

Acceleration - ≤ 10.0 m/s2

Sinusoidal vibration

Frequency range 2 Hz to 9 Hz 9 Hz to 200 Hz

Impact response

spectrum II

≤ 100 m/s2 Unsteady impact

Static payload 0

NOTE

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

equipment under specified impact excitation. Impact response spectrum II means that the duration of

semi-sine impact response spectrum is 6 ms.

z The static payload refers to the capability of the packed equipment to bear the weight from above in

the stipulated stack method.

Table 6-35 Requirements for the mechanical stress in the running environment of the RRU

Item Sub-Item Range

Offset ≤ 3 mm [0.12 in.] -

Acceleration - ≤ 10.0 m/s2

Sinusoidal vibration

Frequency range 2 Hz to 9 Hz 9 Hz to 200 Hz

Impact response

spectrum II

≤ 250 m/s2 Unsteady impact

Static payload 0

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Item Sub-Item Range

NOTE

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

equipment under specified impact excitation. Impact response spectrum II means that the duration of

semi-sine impact response spectrum is 6 ms.

z The static payload refers to the capability of the packed equipment to bear the weight from above in

the stipulated stack method.

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