DBS3900 GSM Technical Description(V100R012_06)(PDF)-En

DBS3900 GSM V100R012

Technical Description Issue

06

Date

2011-03-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2011. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice The purchased products, services and features are stipulated by the 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:

[email protected]

Issue 06 (2011-03-30)

Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

i

DBS3900 GSM Technical Description

About This Document

About This Document Purpose This document describes the composition, orientation, software and hardware structure, subsystems, configuration type, signal flow, clock synchronization, topologies of the DBS3900 GSM.

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

Product Version

DBS3900 GSM (hereinafter referred to as DBS3900)

V100R012

Intended Audience This document is intended for: l

Network planners

l

Field engineers

l

System engineers

Organization 1 Changes in the DBS3900 GSM Technical Description This section describes the changes in the DBS3900 GSM Technical Description. 2 DBS3900 Product Family This chapter describes the functional modules and auxiliary equipment in the DBS3900 product family. 3 Logical Structure of the DBS3900 This describes the internal logical units of the BBU and RRU. Issue 06 (2011-03-30)


iii


About This Document

4 Software Structure of the BTS The BTS software consists of the platform software, signaling protocol software, OM software, and data center. The latter three are application software, and the platform software provides support for the application software. 5 DBS3900 Monitoring Schemes The monitoring system of the DBS3900 monitors the power supply, fans, and environment. 6 Clock Synchronization Modes of the DBS3900 The DBS3900 supports four types of reference clocks: IP clock, line clock, free-run clock, and external clock. 7 Surge Protection Specifications of Ports on the DBS3900 This describes the surge protection specifications of the external ports on the BBU3900 and RRU. 8 CPRI Cable Connections of the RRUs The RRUs support star, chain, and ring topologies. 9 RRU3004 Configuration RRU3004 is a double-transceiver remote radio unit and supports two carriers. Different configurations must be chosen in different topologies. 10 RRU3008 Configuration RRU3008 is a multi-carrier remote radio unit and supports eight carriers. Different configurations must be chosen in different topologies. 11 Typical Scenarios of the DBS3900 (with the DC RRU) This describes the typical installation scenarios of the DBS3900 configured with the BBU3900 and DC RRU. 12 Typical Scenarios of the DBS3900 (with the AC RRU) This describes the typical scenarios of the DBS3900 configured with the BBU3900 and AC RRU.

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, which 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.

iv


Issue 06 (2011-03-30)


About This Document

Symbol

Description Indicates a potentially hazardous situation, which if not avoided, could result in equipment damage, data loss, 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.

General Conventions The general conventions that may be found in this document are defined as follows. 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

Examples of information displayed on the screen are in Courier New.

Command Conventions The command conventions that may be found in this document are defined as follows.

Issue 06 (2011-03-30)

Convention

Description

Boldface

The keywords of a command line are in boldface.

Italic

Command arguments are in italics.

[]

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

{ x | y | ... }

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

[ x | y | ... ]

Optional items are grouped in brackets and separated by vertical bars. One item is selected or no item is selected.

{ x | y | ... }*

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

[ x | y | ... ]*

Optional items are grouped in brackets and separated by vertical bars. Several items or no item can be selected.


v


About This Document

GUI Conventions The GUI conventions that may be found in this document are defined as follows. Convention

Description

Boldface

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

>

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

Keyboard Operations The keyboard operations that may be found in this document are defined as follows. Format

Description

Key

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

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 Operations The mouse operations that may be found in this document are defined as follows.

vi

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.


Issue 06 (2011-03-30)


Contents

Contents About This Document...................................................................................................................iii 1 Changes in the DBS3900 GSM Technical Description.......................................................1-1 2 DBS3900 Product Family..........................................................................................................2-1 3 Logical Structure of the DBS3900............................................................................................3-1 3.1 Logical Structure of the BBU..........................................................................................................................3-2 3.2 Logical Structure of the RRU..........................................................................................................................3-3

4 Software Structure of the BTS.................................................................................................4-1 5 DBS3900 Monitoring Schemes................................................................................................5-1 6 Clock Synchronization Modes of the DBS3900...................................................................6-1 7 Surge Protection Specifications of Ports on the DBS3900..................................................7-1 8 CPRI Cable Connections of the RRUs...................................................................................8-1 9 RRU3004 Configuration............................................................................................................9-1 10 RRU3008 Configuration........................................................................................................10-1 11 Typical Scenarios of the DBS3900 (with the DC RRU)..................................................11-1 11.1 BBU3900 Outdoors and RRU3004 Outdoors.............................................................................................11-2 11.1.1 Scenario 1: -48 V DC Power Input....................................................................................................11-2 11.1.2 Scenario 2: 220 V AC Power Input....................................................................................................11-3 11.2 BBU3900 Indoors and RRU3004 Indoors..................................................................................................11-8 11.2.1 Scenario 1: -48 V DC Power Input....................................................................................................11-9 11.2.2 Scenario 2: 220 V AC Power Input..................................................................................................11-13 11.3 BBU3900 Indoors and RRU3004 Outdoors..............................................................................................11-19 11.3.1 Scenario 1: -48 V DC Power Input..................................................................................................11-19 11.3.2 Scenario 2: 220 V AC Power Input..................................................................................................11-20 11.4 BBU3900 Outdoors and RRU3008 Outdoors...........................................................................................11-21 11.4.1 Scenario 1: -48 V DC Power Input..................................................................................................11-21 11.4.2 Scenario 2: 220 V AC Power Input..................................................................................................11-23 11.5 BBU3900 Indoors and RRU3008 Indoors................................................................................................11-28 11.5.1 Scenario 1: -48 V DC Power Input..................................................................................................11-29 11.5.2 Scenario 2: 220 V AC Power Input..................................................................................................11-29 Issue 06 (2011-03-30)


vii


Contents

11.6 BBU3900 Indoors and RRU3008 Outdoors..............................................................................................11-30 11.6.1 Scenario 1: -48 V DC Power Input..................................................................................................11-31 11.6.2 Scenario 2: 220 V AC Power Input..................................................................................................11-31

12 Typical Scenarios of the DBS3900 (with the AC RRU)...................................................12-1 12.1 BBU3900 Indoors and RRU Indoors..........................................................................................................12-2 12.2 BBU3900 Indoors and RRU Outdoors........................................................................................................12-4

viii


Issue 06 (2011-03-30)


Figures

Figures Figure 2-1 DBS3900 product family....................................................................................................................2-1 Figure 3-1 Logical structure of the BBU3900......................................................................................................3-2 Figure 3-2 Logical structure of the RRU3004......................................................................................................3-4 Figure 3-3 Logical structure of the RRU3008......................................................................................................3-4 Figure 4-1 Software structure of the BTS............................................................................................................4-1 Figure 5-1 Monitoring ports on the BBU.............................................................................................................5-1 Figure 5-2 Components of the DBS3900 monitoring system..............................................................................5-2 Figure 8-1 Typical topologies of the RRUs......................................................................................................... 8-1 Figure 9-1 RF111_1A.......................................................................................................................................... 9-2 Figure 9-2 RF211_1A.......................................................................................................................................... 9-3 Figure 9-3 RF212_1A.......................................................................................................................................... 9-4 Figure 9-4 RF222_1A.......................................................................................................................................... 9-4 Figure 9-5 RF112_2B...........................................................................................................................................9-5 Figure 10-1 RF111_1A......................................................................................................................................10-3 Figure 10-2 RF112_2B.......................................................................................................................................10-4 Figure 10-3 RF211_1A......................................................................................................................................10-4 Figure 10-4 RF212_1A......................................................................................................................................10-5 Figure 10-5 RF222_1A......................................................................................................................................10-6 Figure 11-1 Installation scenario of BBU+RRU+TMC.....................................................................................11-2 Figure 11-2 Installation scenario of OMB+BBU+DCDU03B+RRU................................................................11-3 Figure 11-3 Installation scenario 1 of BBU+RRU+APM30+BBC....................................................................11-4 Figure 11-4 Installation scenario 2 of BBU+RRU+APM30+BBC....................................................................11-6 Figure 11-5 Installation scenario of BBU+RRU+APM30.................................................................................11-7 Figure 11-6 Installation scenario of OMB+BBU+4815+RRU..........................................................................11-8 Figure 11-7 Indoor centralized installation scenarios of the BBU and RRUs (S2)............................................11-9 Figure 11-8 Indoor centralized installation scenarios of the BBU and RRUs (S4)..........................................11-10 Figure 11-9 Indoor separate installation scenarios of the BBU and RRUs (S2+S2).......................................11-11 Figure 11-10 Indoor separate installation scenarios of the BBU and RRUs (S4+S4).....................................11-12 Figure 11-11 Indoor centralized installation scenarios of the BBU and RRUs (S2)........................................11-14 Figure 11-12 Indoor centralized installation scenarios of the BBU and RRUs (S4)........................................11-15 Figure 11-13 Indoor separate installation scenarios of the BBU and RRUs (S2+S2).....................................11-16 Figure 11-14 Indoor separate installation scenarios of the BBU and RRUs (S4+S2).....................................11-18 Figure 11-15 Installation scenario of BBU+RRU+DCDU-03B......................................................................11-20 Issue 06 (2011-03-30)


ix


Figures

Figure 11-16 Installation scenario of BBU+RRU+PS4890+DCDU-03B........................................................11-20 Figure 11-17 Installation scenario of BBU+RRU+TMC.................................................................................11-21 Figure 11-18 Installation scenario of OMB+BBU+DCDU03B+RRU............................................................11-22 Figure 11-19 Installation scenario 1 of BBU+RRU+APM30+BBC................................................................11-24 Figure 11-20 Installation scenario 2 of BBU+RRU+APM30+BBC................................................................11-25 Figure 11-21 Installation scenario of BBU+RRU+APM30.............................................................................11-27 Figure 11-22 Installation scenario of OMB+BBU+4815+RRU......................................................................11-28 Figure 11-23 Indoor centralized installation scenario of the BBU and RRU...................................................11-29 Figure 11-24 Indoor centralized installation scenario of the BBU and RRU...................................................11-30 Figure 11-25 Installation scenario of BBU+RRU+DCDU-03B......................................................................11-31 Figure 11-26 Installation scenario of BBU+RRU+PS4890+DCDU-03B........................................................11-32 Figure 12-1 Installation scenario of the BBU3900 and RRU (1).......................................................................12-2 Figure 12-2 Installation scenario of the BBU3900 and RRU (2).......................................................................12-3 Figure 12-3 Installation scenario of the BBU3900 and RRU (3).......................................................................12-4 Figure 12-4 Installation scenario of the BBU3900 and RRU (1).......................................................................12-5 Figure 12-5 Installation scenario of the BBU3900 and RRU (2).......................................................................12-6 Figure 12-6 Installation scenario of the BBU3900 and RRU (3).......................................................................12-7

x


Issue 06 (2011-03-30)


Tables

Tables Table 2-1 Functional modules of the DBS3900...................................................................................................2-2 Table 2-2 Auxiliary equipment of the DBS3900..................................................................................................2-2 Table 5-1 Functions of the monitoring system.....................................................................................................5-2 Table 7-1 Surge protection specifications of the external ports on the BBU3900...............................................7-1 Table 7-2 Surge protection specifications of the external ports on the RRU3004 and RRU3008 V1.................7-2 Table 7-3 Surge protection specifications of the external ports on the RRU3008 V2.........................................7-2 Table 8-1 Three typical topologies.......................................................................................................................8-1 Table 8-2 CPRI port specifications...................................................................................................................... 8-2 Table 9-1 Major ports on RRU3004.....................................................................................................................9-1 Table 9-2 Basic configurations.............................................................................................................................9-2 Table 9-3 Typical configurations......................................................................................................................... 9-5 Table 10-1 Major ports on RRU3008 V1...........................................................................................................10-1 Table 10-2 Ports on RRU3008 V2.....................................................................................................................10-2 Table 10-3 Basic configurations.........................................................................................................................10-2 Table 10-4 Typical configurations.....................................................................................................................10-6

Issue 06 (2011-03-30)


xi


1

1 Changes in the DBS3900 GSM Technical Description

Changes in the DBS3900 GSM Technical Description This section describes the changes in the DBS3900 GSM Technical Description.

06 (2011-03-30) This is the fifth commercial release of V100R012. Compared with issue 05 (2011-01-20), this issue includes the following new topic: l

9 RRU3004 Configuration

l


Compared with issue 05 (2011-01-20), this issue does not incorporate any changes. Compared with issue 05 (2011-01-20), this issue does not exclude any topics.

05 (2011-01-20) This is the fourth commercial release of V100R012. Compared with issue 04 (2010-11-30), this issue includes the following new topic: l

8 CPRI Cable Connections of the RRUs

Compared with issue 04 (2010-11-30), this issue does not incorporate any changes. Compared with issue 04 (2010-11-30), this issue does not exclude any topics.

04 (2010-11-30) This is the third commercial release of V100R012. Compared with issue 03 (2010-09-27), this issue does not include any new topics. Compared with issue 03 (2010-09-27), this issue incorporates the following change:

Issue 06 (2011-03-30)


1-1


1 Changes in the DBS3900 GSM Technical Description

Topic

Change Description

7 Surge Protection Specifications of Ports on the DBS3900

Surge protection specifications are modified.

Compared with issue 03 (2010-09-27), this issue does not exclude any topics.

03 (2010-09-27) This is the second commercial release of V100R012. Compared with issue 02 (2010-05-30), this issue does not include any new topics. Compared with issue 02 (2010-05-30), this issue incorporates the following changes: Topic

Change Description

About This Document

The version V300R012 is changed to V100R012.

3.2 Logical Structure of the RRU

Function description of control modules is added.

Compared with issue 02 (2010-05-30), this issue does not exclude any topics.

02 (2010-05-30) This is the first commercial release of V100R012. Compared with issue 01 (2010-04-10), this issue does not include any new topics. Compared with issue 01 (2010-04-10), this issue does not incorporate any changes. Compared with issue 01 (2010-04-10), this issue does not exclude any topics.

01 (2010-04-10) This is the draft release of V100R012. Compared with issue 05 (2010-03-15) of the V300R009, this issue does not include any new topics. Compared with issue 05 (2010-03-15) of the V300R009, this issue does not incorporate any changes. Compared with issue 05 (2010-03-15) of the V300R009, this issue does not exclude any topics.

1-2


Issue 06 (2011-03-30)


2 DBS3900 Product Family

2

DBS3900 Product Family

This chapter describes the functional modules and auxiliary equipment in the DBS3900 product family.

Functional Modules of the DBS3900 The functional modules of the DBS3900 are the BBU3900 and the RRU. The RRU is categorized into two types: DC RRU and AC RRU. The DC RRU supports DC power inputs and the AC RRU supports AC power inputs. Both the DC RRU and AC RRU have the RRU3004 and RRU3008 models. Figure 2-1 shows the DBS3900 product family. Figure 2-1 DBS3900 product family

Issue 06 (2011-03-30)


2-1



Table 2-1 describes the functions of the functional modules. Table 2-1 Functional modules of the DBS3900 Functional Module

Description

BBU3900

The BBU3900 is a baseband control unit. It provides ports for connections to the BSC and to the RRU, performs centralized management of the entire DBS3900 in terms of Operation and Maintenance (OM) and signaling processing, and provides the system clock.

RRU3004

The RRU3004 is an outdoor remote radio unit. It processes RF and baseband signals. Each RRU module supports two carriers at the maximum.

RRU3008

The RRU3008 is an outdoor remote radio unit. It processes RF and baseband signals. Each RRU module supports more than two carriers.

Auxiliary Equipment of the DBS3900 Table 2-2 describes the auxiliary equipment of the DBS3900. The DBS3900 can be configured with one or more types of auxiliary equipment. Table 2-2 Auxiliary equipment of the DBS3900 Auxiliary Equipment

Description

APM30

The APM30 consists of the power cabinet, battery cabinet, and transmission cabinet. The APM30 provides an auxiliary solution to the outdoor applications of Huawei wireless products. It supplies DC power and backup power to the distributed or separated BTSs in outdoor scenarios. It can also provide space for installing the BBU and transmission devices outdoors. For detailed functions of the APM30, see the APM30 User Guide.

APM30H

The APM30H consists of the APM30H power cabinet, IBBS200T, and TMC11H. The APM30H provides an auxiliary solution to the outdoor applications of Huawei wireless products. It supplies DC power and backup power to the distributed or separated BTSs in outdoor scenarios. It can also provide space for installing the BBU and transmission devices outdoors. For detailed functions of the APM30H, see the APM30H User Guide.

IBBS

The IBBS is a battery cabinet. Its functions are as follows: l Supplying -48 V DC power output l Housing batteries of different sizes l Supporting serial or parallel connection between battery groups For detailed functions of the IBBS, see the IBBS User Guide.

2-2


Issue 06 (2011-03-30)



Auxiliary Equipment

Description

DCDU-03B

The DCDU-03B is a DC power distribution box. It provides multiple DC power outputs.

PS4890

The PS4890 is an indoor power cabinet. It provides DC power and installation space for customer equipment. When installed with battery groups, the PS4890 can also provide power backup.

EMUA

The EMUA is an environment monitoring device. Its functions are as follows: l Monitoring environment l Monitoring entry into the associated equipment l Monitoring power distribution For detailed functions of the EMUA, see the EMUA User Guide.

When the AC RRU is installed outdoors, the AC power surge protection box AC power is required to provide surge protection for the AC RRU. surge protection box OMB

Issue 06 (2011-03-30)

The Outdoor Mini Box (OMB) is an outdoor BBU subrack, which provides DC power and installation space for the customer equipment.


2-3


3 Logical Structure of the DBS3900

3

Logical Structure of the DBS3900

About This Chapter This describes the internal logical units of the BBU and RRU. 3.1 Logical Structure of the BBU The BBU3900 consists of five units: BTS interface unit, central processing unit, high-speed interface unit, clock unit, and monitoring unit. 3.2 Logical Structure of the RRU An RRU module consists of the high-speed interface unit, signal processing unit, power amplifier (PA), dual duplexer, and low noise amplifier (LNA).

Issue 06 (2011-03-30)


3-1



3.1 Logical Structure of the BBU The BBU3900 consists of five units: BTS interface unit, central processing unit, high-speed interface unit, clock unit, and monitoring unit. Figure 3-1 shows the logical structure of the BBU3900. Figure 3-1 Logical structure of the BBU3900 Boolean alarm input BBU Monitoring unit Environment monitoring bus Site maintenance terminal

MMI

Central processing unit

Control path

Maintenance path BSC

Abis

BTS interface unit

Timing External synchronization clock

Clock unit

Service data path

High-speed CPRI interface unit

RRU

Frame number and clock

BTS Interface Unit The BTS interface unit performs the following functions: l

Connects the BTS to the BSC.

l

Exchanges data between the E1 link and the DBUS.

l

Synchronizes the lower-level clock with the upper-level clock.

Central Processing Unit The central processing unit performs centralized management of the entire distributed base station system in terms of OM and signaling processing, and provides system clocks. The central processing unit performs the following functions: l 3-2

Supports the protocols such as UART and HDLC. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

Issue 06 (2011-03-30)



l

Controls the BTS interface unit to enable the communication between the BBU and the BSC.

l

Controls the high-speed interface unit in the BBU to enable the communication between the BBU and the RRU.

l

Performs the clock-related functions, that is, provides timing signals, manages BTS clocks, and supports external synchronization clock input.

High-Speed Interface Unit The high-speed interface unit performs the following functions: l

Receives uplink baseband data from the RRU.

l

Transmits downlink baseband data to the RRU.

l

Provides up to six SFP optical ports per BBU3900.

Clock Unit The clock unit performs the following functions: l

Provides the high-accuracy clock source for the BTS and provides the system clock based on this clock source.

l

Checks the phase-locking status, provides software phase-locking, adjusts DA values, and generates frame numbers.

Monitoring Unit The monitoring unit collects the information of Boolean alarms and reports the alarm information to the central processing unit.

3.2 Logical Structure of the RRU An RRU module consists of the high-speed interface unit, signal processing unit, power amplifier (PA), dual duplexer, and low noise amplifier (LNA). Figure 3-2 shows the logical structure of the RRU3004.

Issue 06 (2011-03-30)


3-3



Figure 3-2 Logical structure of the RRU3004 RRU Signal processing

BBU/ RRU

processing unit for TX signals

Processin g unit for RX signals

Carrier detection

DAC

PA

DAC

PA

TX1 RX1

LOAD

ADC

LNA

ADC

LNA

Duplexer

Optical interface

High-speed interface unit

BBU

Control module CMD

Antenna system TX2 RX2

RXD_IN RXM_OUT

Figure 3-3 shows the logical structure of the RRU3008. Figure 3-3 Logical structure of the RRU3008

RXM_OUT: RRU RX main output for cascaded RRU RXM_IN: RRU RX diversity input for cascaded RRU modules modules

High-Speed Interface Unit The high-speed interface unit performs the following functions: 3-4


Issue 06 (2011-03-30)



l

Receives downlink data from the upper-level equipment, such as the BBU.

l

Transmits uplink data to the upper-level equipment, such as the BBU.

l

Transfers data between cascaded RRU modules through the CPRI electrical ports.

Signal Processing Unit The signal processing unit consists of two uplink RX channels, two downlink TX channels, and a control module. The signal processing unit processes baseband signals and RF signals. The baseband signal processing involves decoding GMSK and 8PSK baseband signals. The uplink RX channels perform the following functions: l

Down-converts the RX signals into Intermediate Frequency (IF) signals.

l

Amplifies the IF signals and performs IQ demodulation.

l

Performs analog-to-digital (A/D) conversion through the ADC.

l

Performs sampling of digital signals.

l

Performs matched filtering.

l

Performs Digital Automatic Gain Control (DAGC).

l

Processes data and assembles the data into packets.

The downlink TX channels perform the following functions: l

Disassembles the packaged signals (timing signals, control signals, and data signals) from the BBU and sends them to associated units.

l

Performs coding, modulation, shaping, and filtering of downlink signals.

l

Performs digital-to-analog (D/A) conversion through the DAC and performs IQ modulation.

l

Up-converts RF signals to the TX band.

The processing unit for baseband performs the following functions: l

receives demodulated and decodes signals.

l

codes, modulates, shapes, and filters downlink signals.

The control module performs the following functions: l

Initializes and loads the RRU.

l

Collects alarm information and reports the board status.

l

Receives configuration commands from the BBU and performs configuration management of other modules.

l

Operates and maintains the RRU.

PA The PA performs the following functions: l

Combines or divides the signals of the two carriers.

l

Amplifies the low-power RF signals sent from the signal processing unit.

Dual Duplexer The dual duplexer performs the following functions: Issue 06 (2011-03-30)


3-5



l

Multiplexes RX signals and TX signals so that they can share an antenna channel.

l

Filters the RX signals and TX signals.

LNA The LNA amplifies the signals received from the antennas.

RX The RX down-converts the LAN signals into IF signals. After the RX amplifies the IF signals, it sends the signals to the ADC.

3-6


Issue 06 (2011-03-30)


4 Software Structure of the BTS

4

Software Structure of the BTS

The BTS software consists of the platform software, signaling protocol software, OM software, and data center. The latter three are application software, and the platform software provides support for the application software. Figure 4-1 shows the software structure of the BTS. Figure 4-1 Software structure of the BTS Signaling protocol software

OM software

Data center

Platform software

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

Timing management

l

Task management

l

Memory management

l

Module management

l

Managing the loading and running of the application software

l

Providing the message forwarding mechanism between modules

Issue 06 (2011-03-30)


4-1


4 Software Structure of the BTS

l

Tracing massages between modules to facilitate troubleshooting

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

Processing the radio network layer protocol

l

Processing the transport network layer protocol, which performs transport data configuration, ALCAP processing, and SAAL processing

l

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

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

Equipment management

l

Data configuration

l

Performance management

l

Commissioning management

l

Alarm management

l

Software management

l

Tracing management

l

Security management

l

Backup management

l

Log management

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

4-2


Issue 06 (2011-03-30)


5 DBS3900 Monitoring Schemes

5

DBS3900 Monitoring Schemes

The monitoring system of the DBS3900 monitors the power supply, fans, and environment.

Monitoring Ports on the BBU Figure 5-1 shows the monitoring ports on the BBU. Figure 5-1 Monitoring ports on the BBU

l

The BBU can provide a maximum of 2 RS485 buses and 16 Boolean signal inputs.

l

The modules connected to RS485 bus 0 cannot change to be connected to RS485 bus 1, and the other way round.

Components of the Monitoring System Figure 5-2 shows the components of the DBS3900 monitoring system.

Issue 06 (2011-03-30)


5-1


5 DBS3900 Monitoring Schemes

Figure 5-2 Components of the DBS3900 monitoring system BBU RS485 bus0 RS485 bus1 EMUA

APMI

BSC

PMU

Temperature sensor of the battery cabinet

Door status sensor of the power cabinet

Door status sensor of the battery cabinet

Boolean0~15 Door sensor of the DCDU-03 of the APMI of the transmission cabinet transmission cabinet transmission cabinet

User interface

Functions of the Monitoring System Table 5-1 describes the functions of the monitoring system. Table 5-1 Functions of the monitoring system Module

Monitoring Function

EMUA

l Communicates with the BBU through the RS485 port, through which two-channel RS485 signals are transmitted. l Detects the input voltage. l Provides ports for connections to the humidity and temperature sensor (12 V DC/24 V DC current type). l Provides ports for detecting the Boolean input signals of dry contact and OC type. l Provides ports for controlling six external Boolean outputs of relay node type.

PMU in the APM30

l Communicates with the BBU through the RS232/RS422 serial port. l Manages the power system and the battery recharging and discharging. l Detects and reports water damage alarms, smoke alarms, door status alarms, and standby Boolean value alarms, and reports ambient humidity and temperature, battery temperature, and standby analog values. l Detects power distribution and reports alarms.

DCDU-03

5-2

Monitors surge protection failure of DC.


Issue 06 (2011-03-30)


6

6 Clock Synchronization Modes of the DBS3900

Clock Synchronization Modes of the DBS3900

The DBS3900 supports four types of reference clocks: IP clock, line clock, free-run clock, and external clock.

IP Clock The IP clock acts as the clock source of the DBS3900 when the BTS uses the IP over FE transmission mode. The IP clock requires the configuration of the IP clock server in the network. The IP clock server carries the reference clock information in the UDP data packet, and then transmits the clock packets to the BTS. After receiving these clock packets, the BTS uses the clock signals interpreted from the packets.

Line Clock The BBU3900 directly extracts the clock from the E1/T1 interface. Then, the BBU exports the precise 2 MHz and 8 kHz clocks after frequency dividing, phase locking, and phase adjusting. The 2 MHz and 8 kHz clocks are used for frame synchronization and bit synchronization in the BTS. The line clock consists of the trace BSC clock and trace transmission clock. The BTS extracts the clock signals from the BSC through the E1/T1 interface and uses them as the reference clock source. When the transmission mode of the BTS is upgraded from E1/T1 mode to IP mode, if there is no IP clock, the BTS extracts the clock signals from the transmission network through the E1/T1 interface and use them as the reference clock source.

Free-Run Clock In the absence of external clocks, the internal free-run clock ensures that the BTS keeps working properly for at least ninety days.

External Clock If the BBU3900 is configured with the USCU, the USCU can receive the external clock signals for the GTMU. The USCU supports clock signals including the GPS clock signal, RGPS clock signal, and BITS clock signal.

Issue 06 (2011-03-30)


6-1


7


Surge Protection Specifications of Ports on the DBS3900 This describes the surge protection specifications of the external ports on the BBU3900 and RRU.

Surge Protection Specifications of the External Ports on the BBU3900 NOTE

l Unless otherwise specified, the surge protection specifications depend on the surge waveform of 8/20 μs. l All the discharge current items, unless otherwise specified as maximum discharge current, refer to nominal discharge current.

Table 7-1 lists the surge protection specifications of the external ports on the BBU3900. Table 7-1 Surge protection specifications of the external ports on the BBU3900 Port

Surge Protection Mode

Surge Current

Power supply port

Differential mode

2 kV (1.2/50 μs)

Common mode

4 kV (1.2/50 μs)

E1 port

Differential mode (UELP not configured)

250 A

Common mode (UELP not configured)

250 A

Differential mode (UELP configured)

3 kA

Common mode (UELP configured)

5 kA

Differential mode (GPS surge protector configured)

8 kA

Common mode (GPS surge protector configured)

40 kA

Differential mode (surge protector not configured)

250 A

GPS signal input port

Dry contact alarm port, RS485 port Issue 06 (2011-03-30)


7-1



Port


Surge Current

Common mode (surge protector not configured)

250 A

Differential mode (surge protector configured)

3 kA

Common mode (surge protector configured)

5 kA

Surge Protection Specifications of the External Ports on the RRU Table 7-2 lists the surge protection specifications of the external ports on the RRU3004 and RRU3008 V1. Table 7-2 Surge protection specifications of the external ports on the RRU3004 and RRU3008 V1 Port


Surge Current

-48 V DC power port

Differential mode

10 kA

Common mode

20 kA

Differential mode

40 kA

Common mode

40 kA

Differential mode

8 kA

Common mode

40 kA

Differential mode

250 A

Common mode

250 A

Differential mode

3 kA

Common mode

5 kA

AC power port

RF port

Dry contact alarm port

RET antenna port

Table 7-3 lists the surge protection specifications of the external ports on the RRU3008 V2. Table 7-3 Surge protection specifications of the external ports on the RRU3008 V2 Port


Surge Current

-48 V DC power port

Differential mode

10 kA

Common mode

20 kA

Differential mode

40 kA

AC power port

7-2


Issue 06 (2011-03-30)



Port

RF port

Dry contact alarm port

RET antenna port

Issue 06 (2011-03-30)


Surge Current

Common mode

40 kA

Differential mode

8 kA

Common mode

40 kA

Differential mode

3 kA

Common mode

5 kA

Differential mode

3 kA

Common mode

5 kA


7-3



8

CPRI Cable Connections of the RRUs

The RRUs support star, chain, and ring topologies. Figure 8-1 shows the typical topologies of the RRUs. Figure 8-1 Typical topologies of the RRUs

Table 8-1 describes three typical topologies. Table 8-1 Three typical topologies Topology

Advantage

Disadvantage

Star

l Installation and maintenance are easy.

Compared with other topologies, this topology requires large number of optical cables.

l Transmission reliability is high. When an RRU or optical cable is faulty, only one sector is affected.

Issue 06 (2011-03-30)


8-1



Topology

Advantage

Disadvantage

Chain

The cost of transmission equipment is low.

Ring

Transmission reliability is guaranteed.

l The number of cascading levels and cascading distances are restricted. l Faults in an upper-level RRU may affect lower-level RRUs.

Based on the distance between a BBU and an RRU, CPRI networking supports short-distance remote and long-distance remote networking. l

For the short-distance remote networking, the longest distance between an RRU and the BBU on a CPRI chain does not exceed 100 m.

l

For the long-distance remote networking, the longest distance between an RRU and the BBU on a CPRI chain ranges from 100 m to 40,000 m.

Different CPRI optical cables are used in the two types of networking. For details, see chapter CPRI Optical Cable in the BBU3900 Hardware Description. Table 8-2 provides the specifications of CPRI ports on the GTMU and RRU. Table 8-2 CPRI port specifications

8-2

Boar d or Mod ule

Number of CPRI Ports

CPRI Data Rate

Topology

Number of Supporte d TRXs/ Carriers

Cascadin g Levels

Maximu m Distance from the BBU

GTM U

6

1.25 Gbit/s

Star, chain, or ring

36 TRXs

-

-

GTM Ub

6

1.25 Gbit/s or 2.5 Gbit/ s


36 TRXs

-

-

RRU 3004

2

1.25 Gbit/s


2 carriers

6 levels

40 km

RRU 3008

2

1.25 Gbit/s


6 carriers

6 levels

40 km


Issue 06 (2011-03-30)



9

RRU3004 Configuration

RRU3004 is a double-transceiver remote radio unit and supports two carriers. Different configurations must be chosen in different topologies.

Port Table 9-1 describes major ports on RRU3004. Table 9-1 Major ports on RRU3004 Type

Silkscreen

Description

Port for transceiving RF signals

ANT_TX/RXA and ANT_TX/RXB

The two ports, each of which is used to transmit and receive RF signals, connect to the antenna system through antenna channel 1 and antenna channel 2 respectively.

CPRI port

TX RX CPRI_W

The port is a westbound optical/ electrical port and it is used to connect to the BBU or an upper-level RRU.

TX RX CPRI_E

The port is an eastbound optical/ electrical port and it is used to connect to a lower-level RRU.

RX_IN/OUT

The port is used to transmit and receive the diversity signals received through an antenna channel.

Interconnection port for receiving RF signals

Basic Configurations Table 9-2 lists the basic configurations of an RRU3004 serving only one sector. The format of the description of the basic configuration is RF[F][TX][RX]_[C][TYPE]. Where, l

F indicates the number of antenna channels for an RF module.

l

TX indicates the number of transmit channels for an RF module.

Issue 06 (2011-03-30)


9-1



l

RX indicates the number of receive channels for an RF module.

l

C indicates the number of CPRI links connecting RF modules with the GTMU board.

l

TYPE indicates the CPRI network topologies applied to connect RF modules with the BBU. If the value of TYPE is A, the star topology is applied. If the value of TYPE is B, the chain topology is applied.

Table 9-2 Basic configurations Basic Configuration

Number of Modules

Sending Receiving Mode

Hardware Configuration

RF111_1A

1

Single feeder [1TX 1RX]

Figure 9-1

RF211_1A

1

Double feeder [1TX 1RX]

Figure 9-2

RF212_1A

1


Figure 9-3

RF222_1A

1


Figure 9-4

RF112_2B

2


Figure 9-5

RF111_1A An RRU3004 connects to the antenna system through ANT_TX/RXA. Antenna channel 1 transmits and receives signals. The star topology is applied to connect the BBU with the RRU3004. Figure 9-1 RF111_1A

9-2


Issue 06 (2011-03-30)



RF211_1A An RRU3004 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB. Antenna channel 1 transmits signals while antenna channel 2 receives signals. The star topology is applied to connect the BBU with the RRU3004. Figure 9-2 RF211_1A

RF212_1A An RRU3004 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB. Antenna channel 1 transmits and receives signals while antenna channel 2 receives signals only. The star topology is applied to connect the BBU with the RRU3004.

Issue 06 (2011-03-30)


9-3



Figure 9-3 RF212_1A

RF222_1A An RRU3004 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB. Both antenna channel 1 and antenna channel 2 transmit and receive signals. The star topology is applied to connect the BBU with the RRU3004. Figure 9-4 RF222_1A

9-4


Issue 06 (2011-03-30)



RF112_2B Two RRU3004 connect to the antenna system through ANT_TX/RXA. Antenna channel 1 transmits and receives signals. RX_IN/OUT on the two RRU3004 interconnect to transfer diversity signals. The chain topology is applied to connect the BBU with one RRU3004. Figure 9-5 RF112_2B

Typical Configurations Table 9-3 describes the typical configurations of RRU3004 in different scenarios. Table 9-3 Typical configurations Scenari o

Number of Modules

Send Mode

Typical Configuration

S1

1

Transmit diversity

RF222_1A

Independent transmit

l RF111_1A l RF212_1A l RF222_1A

S2

1

Independent transmit or combination

l RF111_1A l RF212_1A l RF222_1A

Issue 06 (2011-03-30)


9-5



Scenari o

9-6

Number of Modules

Send Mode


2

PBT

RF112_2B

S3

2


RF112_2B

S4

2


l RF112_2B


l RF111_1A + RF111_1A

Issue 06 (2011-03-30)



10

RRU3008 Configuration

RRU3008 is a multi-carrier remote radio unit and supports eight carriers. Different configurations must be chosen in different topologies.

Port Table 10-1 describes major ports on RRU3008 V1. Table 10-1 Major ports on RRU3008 V1 Type

Silkscreen

Description




CPRI port

TX RX CPRI_W

The port is a westbound optical/ electrical port and it is used to connect to the BBU or an upper-level RRU.

TX RX CPRI_E

The port is an eastbound optical/ electrical port and it is used to connect to a lower-level RRU.

RX_IN/OUT



Table 10-2 describes ports on RRU3008 V2.

Issue 06 (2011-03-30)


10-1



Table 10-2 Ports on RRU3008 V2 Type

Silkscreen

Description




CPRI port

RX TX CPRI0

The port is used to connect to the BBU or an upper-level RRU.

TX RX CPRI1

The port is used to connect to a lowerlevel RRU.

RX_IN/OUT



Basic Configurations Table 10-3 lists the basic configurations of an RRU3008 serving only one sector. The format of the description of the basic configuration is RF[F][TX][RX]_[C][TYPE]. Where, l

F indicates the number of antenna channels for an RF module.

l

TX indicates the number of transmit channels for an RF module.

l

RX indicates the number of receive channels for an RF module.

l

C indicates the number of CPRI links connecting RF modules with the GTMU board.

l

TYPE indicates the CPRI network topologies applied to connect RF modules with the BBU. If the value of TYPE is A, the star topology is applied. If the value of TYPE is B, the chain topology is applied. NOTE

The configurations of RRU3008 V1 are the same as those of RRU3008 V2. This section takes the configurations of RRU3008 V2 as examples.

Table 10-3 Basic configurations

10-2

Basic Configuration

Number of Modules



RF111_1A

1


Figure 10-1

RF112_2B

2


Figure 10-2

RF211_1A

1


Figure 10-3


Issue 06 (2011-03-30)



Basic Configuration

Number of Modules



RF212_1A

1


Figure 10-4

RF222_1A

1


Figure 10-5

RF111_1A An RRU3008 connects to the antenna system through ANT_TX/RXA. Antenna channel 1 transmits and receives signals. The star topology is applied to connect the BBU with the RRU3008. Figure 10-1 RF111_1A

RF112_2B Two RRU3008 connect to the antenna system through ANT_TX/RXA. Each antenna channel 1 transmits and receives signals. RX_IN/OUT on the two RRU3008 interconnect to transfer diversity signals. The chain topology is applied to connect the BBU with one RRU3008.

Issue 06 (2011-03-30)


10-3



Figure 10-2 RF112_2B

RF211_1A An RRU3008 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB. Antenna channel 1 transmits signals while antenna channel 2 receives signals. The star topology is applied to connect the BBU with the RRU3008. Figure 10-3 RF211_1A

10-4


Issue 06 (2011-03-30)



RF212_1A An RRU3008 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB. Antenna channel 1 transmits and receives signals while antenna channel 2 receives signals only. The star topology is applied to connect the BBU with the RRU3008. Figure 10-4 RF212_1A

RF222_1A An RRU3008 connects to the antenna system through ANT_TX/RXA and ANT_TX/RXB. Each antenna channel transmits and receives signals. The star topology is applied to connect the BBU with the RRU3008.

Issue 06 (2011-03-30)


10-5



Figure 10-5 RF222_1A

Typical Configurations Table 10-4 describes the typical configurations of RRU3008 in different scenarios. Table 10-4 Typical configurations Scenario

Number of Modules

Send Mode


S3-S8

1


RF212_1A

Transmit diversity

RF222_1A

Combined transmit

RF112_2B


RF222_1A + RF222_1A

S8-S12

10-6

2


Issue 06 (2011-03-30)


11

11 Typical Scenarios of the DBS3900 (with the DC RRU)

Typical Scenarios of the DBS3900 (with the DC RRU)

About This Chapter This describes the typical installation scenarios of the DBS3900 configured with the BBU3900 and DC RRU. The full names of common cabinet names whose abbreviations are used in this document are listed as follows: l

BBC: Battery Cabinet

l

TMC: Transmission Cabinet

l

APM: Advance Power Module

11.1 BBU3900 Outdoors and RRU3004 Outdoors This describes the scenarios that the BBU3900 and RRU3004 of the DBS3900 are installed outdoors. 11.2 BBU3900 Indoors and RRU3004 Indoors This describes the scenarios that the BBU3900 and RRU3004 of the DBS3900 are installed indoors. 11.3 BBU3900 Indoors and RRU3004 Outdoors This describes the scenarios that the BBU3900 and RRU3004 of the DBS3900 are installed indoors and outdoors respectively. 11.4 BBU3900 Outdoors and RRU3008 Outdoors This describes the scenarios that the BBU3900 and RRU3008 of the DBS3900 are installed outdoors. 11.5 BBU3900 Indoors and RRU3008 Indoors This describes the scenarios that the BBU3900 and RRU3008 of the DBS3900 are installed indoors. 11.6 BBU3900 Indoors and RRU3008 Outdoors This describes the scenarios that the BBU3900 and RRU3008 of the DBS3900 are installed indoors and outdoors respectively.

Issue 06 (2011-03-30)


11-1



11.1 BBU3900 Outdoors and RRU3004 Outdoors This describes the scenarios that the BBU3900 and RRU3004 of the DBS3900 are installed outdoors. 11.1.1 Scenario 1: -48 V DC Power Input When -48 V DC power is available on site, the installation scenarios of BBU+RRU+TMC or OMB+BBU+DCDU03B+RRU is applicable. 11.1.2 Scenario 2: 220 V AC Power Input When 220 V AC power is available on site and the required space for transmission units is not greater than 4 U, the installation scenario of BBU+RRU+APM30+BBC is applicable. When the number of RRUs is not greater than two and the distance between the EPS4815 and RRUs is less than 5 m, the installation scenario of OMB+BBU+4815+RRU is applicable.

11.1.1 Scenario 1: -48 V DC Power Input When -48 V DC power is available on site, the installation scenarios of BBU+RRU+TMC or OMB+BBU+DCDU03B+RRU is applicable.

Installation scenario of BBU+RRU+TMC Figure 11-1 shows the installation scenario of BBU+RRU+TMC. Figure 11-1 Installation scenario of BBU+RRU+TMC

TMC DCDU-03A-1U DCDU-03B-1U BBU-2U RRU TM space-7U

Heater-1U

In this installation scenario,

11-2

l

The TMC can be installed on the floor, pole, or wall.

l

The TMC provides a maximum of 7 U for installation purpose.

l

The BBU can be installed in the TMC, which is equipped with the DCDU-03B to provide power for the BBU and RRU. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

Issue 06 (2011-03-30)



l

The DCDU-03A configured in the TMC supplies power to transmission units.

l

The heater in the TMC is optional.

l

The RRU can be installed on a pole or tower.

l

The requirement for the switch quantity and capacity of the external power input system is 1 x 63 A.

Installation scenario of OMB+BBU+DCDU03B+RRU If the site requires six DRRUs or less (cascaded mode in the cell) or three GRRUs or less, the installation scenario of OMB+BBU+DCDU03B+RRU can be used. Figure 11-2 shows the installation scenario of OMB+BBU+DCDU03B+RRU. Figure 11-2 Installation scenario of OMB+BBU+DCDU03B+RRU

In this installation scenario, l

The OMB can be installed on a pole, or wall.

l

The OMB provides 2 U space for the BBU and 1 U space for the DCDU03B.

l

The DCDU03B provides the -48 V DC power for the BBU and RRUs.

l

The RRU can be installed on a pole or tower. The maximum configuration of the RRUs is S4/4/4.

l

The requirement for the switch quantity and capacity of the external power input system is 6 x 20 A + 3×12 A. The maximum input current is 100 A.

11.1.2 Scenario 2: 220 V AC Power Input When 220 V AC power is available on site and the required space for transmission units is not greater than 4 U, the installation scenario of BBU+RRU+APM30+BBC is applicable. When the number of RRUs is not greater than two and the distance between the EPS4815 and RRUs is less than 5 m, the installation scenario of OMB+BBU+4815+RRU is applicable. Issue 06 (2011-03-30)


11-3


11 Typical Scenarios of the DBS3900 (with the DC RRU) NOTE

If the required space for transmission units is greater than 4 U, configure a TMC and ensure that the distance between the APM30 and the TMC is not longer than 1 m.

Scenario of Four-Hour Backup Power If the backup power required at the site is not greater than four hours, the installation scenario 1 of BBU+RRU+APM30+BBC is applicable. Figure 11-3 shows installation scenario 1 of BBU+RRU+APM30+BBC. Figure 11-3 Installation scenario 1 of BBU+RRU+APM30+BBC

APM30

AC/DC-3U

PDU-2U RRU BBU-2U

TM space-4U

Heater-1U

BAT.48V/92Ah

BBC

BAT.48V/92Ah

11-4


Issue 06 (2011-03-30)




The BBC is installed on the floor. By default, the APM30 is stacked on the BBC.

l

The heater in the APM30 is optional. The APM30 provides a maximum of 4 U space for transmission units.

l

The BBU can be installed in the APM30, which supplies -48 V DC power to the BBU and RRU.

l


l

The heater in the BBC is optional. Without occupying additional internal space, the heater can be placed under the baffle plate at the bottom of each battery layer.

l

The requirements for the switch quantity and capacity of the external power input system are as follows: – 110 V AC dual-live-wire: 2 x (32 A to 50 A). The 32 A input is recommended. – 220 V AC single-phase: 1 x (32 A to 50 A). The 32 A input is recommended. – 220 V AC three-phase: 3 x (20 A to 30 A). The 20 A input is recommended.

Scenario of Eight-Hour Backup Power If eight-hour backup power is required at the site, installation scenario 2 of BBU+RRU+APM30 +BBC is applicable. Figure 11-4 shows installation scenario 2 of BBU+RRU+APM30+BBC.

Issue 06 (2011-03-30)


11-5



Figure 11-4 Installation scenario 2 of BBU+RRU+APM30+BBC

BAT.48V/92Ah RRU BBC

BAT.48V/92Ah APM30 AC/DC-3U BAT.48V/92Ah PDU-2U BBC

BBU-2U

TM space-4U

BAT.48V/92Ah

Heater-1U


The APM30 and the BBCs can be installed on the floor. By default, the two BBCs are stacked.

l

The APM30 provides a maximum of 4 U space for transmission units.

l


l


l


l


11-6


Issue 06 (2011-03-30)



Scenario of Half-Hour Backup Power If half-hour backup power is required at the site, the installation scenario of BBU+RRU+APM30 is applicable. Figure 11-5 shows the installation scenario of BBU+RRU+APM30. Figure 11-5 Installation scenario of BBU+RRU+APM30

RRU

APM30

AC/DC-3U

PDU-2U BBU-2U TM space-2U Heater-1U BAT


The batteries providing 24 Ah backup power can be placed in the APM30. The batteries support a maximum cell configuration of S4/4/4.

l


l


Issue 06 (2011-03-30)


11-7



l


l


Installation Scenario of OMB+BBU+4815+RRU If the site requires two RRUs or less and the distance between the EPS4815 and RRUs is less than 5 m, the installation scenario of OMB+BBU+EPS4815+RRU can be used. Figure 11-6 shows the installation scenario of OMB+BBU+EPS4815+RRU. Figure 11-6 Installation scenario of OMB+BBU+4815+RRU



l

The OMB provides 2 U space for the BBU and 1 U space for the 4815 power supply system.

l

The 4815 is an AC/DC conversion unit. It converts the 220 V AC power into the -48 V DC power for the BBU and RRUs.

l

The RRU can be installed on a pole or tower. The maximum configuration of RRUs is S2/2 or O4.

l

The requirement for the switch quantity and capacity of the external power input system is 1 x 10 A (AC).

11.2 BBU3900 Indoors and RRU3004 Indoors This describes the scenarios that the BBU3900 and RRU3004 of the DBS3900 are installed indoors. 11-8


Issue 06 (2011-03-30)



11.2.1 Scenario 1: -48 V DC Power Input When -48 V DC power and the equipment room are available on site, the BBU and RRU can be installed indoors. 11.2.2 Scenario 2: 220 V AC Power Input When 220 V AC power and the equipment room are available on site, the BBU and RRU can be installed indoors.

11.2.1 Scenario 1: -48 V DC Power Input When -48 V DC power and the equipment room are available on site, the BBU and RRU can be installed indoors.

Centralized Installation Scenarios Figure 11-7 and Figure 11-8 show the indoor centralized installation scenarios of the BBU and RRUs. Figure 11-7 Indoor centralized installation scenarios of the BBU and RRUs (S2)

Issue 06 (2011-03-30)


11-9



Figure 11-8 Indoor centralized installation scenarios of the BBU and RRUs (S4)

S4

D C D U

-48V INPUT L1

B B U

R R U

R R U

JUMPER L2

L3

ANT


The BBU and DCDU-03B are installed in an RRU rack through the 2 U-high adapting pieces.

l

The RRU rack can be installed on the wall or stand.

l


l

The RRUs, BBU, and DCDU-03B are equipotentially connected and then grounded through one PGND cable.

Separate Installation Scenarios Figure 11-9 and Figure 11-10 show the indoor separate installation scenarios of the BBU and RRUs.

11-10


Issue 06 (2011-03-30)



Figure 11-9 Indoor separate installation scenarios of the BBU and RRUs (S2+S2)

S2+S2

D C D U

-48V INPUT L1

B B U

R R U

JUMPER L2

ANT

L2 R R U

JUMPER

Issue 06 (2011-03-30)


ANT

11-11




S4+S4

D C D U

-48V INPUT L1

B B U

R R U

R R U

JUMPER

L2

L3

ANT

L2 R R U

R R U

JUMPER

L3

ANT


11-12

l

The BBU and DCDU-03B are installed in an RRU rack through the 2 U-high adapting pieces.

l


l

In S2+S2 configuration, the requirement for the switch quantity and capacity of the external power input system is 1 x 10 A. In S4+S4 configuration, the requirement is 1 x 20 A.

l

Two cascaded RRUs are equipotentially connected and then grounded through one PGND cable.


Issue 06 (2011-03-30)



11.2.2 Scenario 2: 220 V AC Power Input When 220 V AC power and the equipment room are available on site, the BBU and RRU can be installed indoors.

Centralized Installation Scenarios Figure 11-11 and Figure 11-12 show the indoor centralized installation scenarios of the BBU and RRUs.

Issue 06 (2011-03-30)


11-13




S2

4 8 1 5

AC INPUT L1

11-14

B B U

R R U

JUMPER -48V OUTPUT

L2


ANT

Issue 06 (2011-03-30)




S4

4 8 1 5

AC INPUT L1

B B U

R R U

R R U

JUMPER

-48V OUTPUT

L2

ANT



l

The BBU and 4815 are installed in an RRU rack using two transfer pieces whose heights are 2 U.

l


l

The requirement for the switch quantity and capacity of the external power input system is 1 x 5A (AC).

l

The RRUs, BBU, and 4815 are equipotentially connected and then grounded through one PGND cable.

l

When the 4815 is installed in the same rack as the BBU, the 4815 reports dry contact alarms to the BBU.

Separate Installation Scenarios Figure 11-13 and Figure 11-14 show the indoor separate installation scenarios of the BBU and RRUs.

Issue 06 (2011-03-30)


11-15




S2+S2

4 8 1 5

AC INPUT L1

B B U

R R U

JUMPER -48V OUTPUT

L2

4 8 1 5

R R U

AC INPUT L1

11-16

ANT

JUMPER

L2


ANT

Issue 06 (2011-03-30)


Issue 06 (2011-03-30)



11-17




S4+S2

4 8 1 5

AC INPUT L1

B B U

R R U

R R U

JUMPER

-48V OUTPUT

L2

L3

4 8 1 5

R R U

AC INPUT L1

11-18

ANT

JUMPER

L2


ANT

Issue 06 (2011-03-30)





l

The BBU and 4815 are installed in an RRU rack using two transfer pieces whose heights are 2 U.

l


l

The requirement for the switch quantity and capacity of the external power input system is 2 x 5A.

l

The RRU and 4815 are equipotentially connected and then grounded through one PGND cable.

l

When the 4815 is installed in the same rack as the BBU, the 4815 reports dry contact alarms to the BBU.

l

When the 4815 is installed in the same rack as the RRU, the RRU does not support detection and monitoring functions. Therefore, monitoring is not performed in this scenario.

11.3 BBU3900 Indoors and RRU3004 Outdoors This describes the scenarios that the BBU3900 and RRU3004 of the DBS3900 are installed indoors and outdoors respectively. 11.3.1 Scenario 1: -48 V DC Power Input When -48 V DC power is available on site, the installation scenario of BBU+RRU+DCDU-03B is applicable. 11.3.2 Scenario 2: 220 V AC Power Input When 220 V AC power is available on site, the installation scenario of BBU+RRU+PS4890 +DCDU-03B is applicable.

11.3.1 Scenario 1: -48 V DC Power Input When -48 V DC power is available on site, the installation scenario of BBU+RRU+DCDU-03B is applicable. Figure 11-15 shows the installation scenario of BBU+RRU+DCDU-03B.

Issue 06 (2011-03-30)


11-19



Figure 11-15 Installation scenario of BBU+RRU+DCDU-03B


The BBU and DCDU-03B are installed in an indoor 19-inch rack.

l

The RRU can be installed outdoors on a pole.

l

The requirement for the switch quantity and capacity of the external power input system is 1 x (63 A to 100 A). The 63 A input is recommended.

11.3.2 Scenario 2: 220 V AC Power Input When 220 V AC power is available on site, the installation scenario of BBU+RRU+PS4890 +DCDU-03B is applicable. Figure 11-16 shows the installation scenario of BBU+RRU+PS4890+DCDU-03B. Figure 11-16 Installation scenario of BBU+RRU+PS4890+DCDU-03B

11-20


Issue 06 (2011-03-30)




The BBU and DCDU-03B are installed in an indoor PS4890.

l


l


11.4 BBU3900 Outdoors and RRU3008 Outdoors This describes the scenarios that the BBU3900 and RRU3008 of the DBS3900 are installed outdoors. 11.4.1 Scenario 1: -48 V DC Power Input When -48 V DC power is available on site, the installation scenarios of BBU+RRU+TMC or OMB+BBU+DCDU03B+RRU is applicable. 11.4.2 Scenario 2: 220 V AC Power Input When 220 V AC power is available on site and the required space for transmission units is not greater than 4 U, the installation scenario of BBU+RRU+APM30+BBC is applicable. When the number of RRUs is not greater than two and the distance between the EPS4815 and RRUs is less than 5 m, the installation scenario of OMB+BBU+4815+RRU is applicable.

11.4.1 Scenario 1: -48 V DC Power Input When -48 V DC power is available on site, the installation scenarios of BBU+RRU+TMC or OMB+BBU+DCDU03B+RRU is applicable.

Installation scenario of BBU+RRU+TMC Figure 11-17 shows the installation scenario of BBU+RRU+TMC. Figure 11-17 Installation scenario of BBU+RRU+TMC

TMC DCDU-03A-1U DCDU-03B-1U BBU-2U RRU TM space-7U

Heater-1U

Issue 06 (2011-03-30)


11-21




The TMC can be installed on the floor, pole, or wall.

l

The TMC provides a maximum of 7 U for installation purpose.

l

The BBU can be installed in the TMC, which is equipped with the DCDU-03B to provide power for the BBU and RRU.

l

The DCDU-03A configured in the TMC supplies power to transmission units.

l

The heater in the TMC is optional.

l


l


Installation scenario of OMB+BBU+DCDU03B+RRU If the site requires six DRRUs or less (cascaded mode in the cell) or three GRRUs or less, the installation scenario of OMB+BBU+DCDU03B+RRU can be used. Figure 11-18 shows the installation scenario of OMB+BBU+DCDU03B+RRU. Figure 11-18 Installation scenario of OMB+BBU+DCDU03B+RRU


11-22

l


l

The OMB provides 2 U space for the BBU and 1 U space for the DCDU03B.

l

The DCDU03B provides the -48 V DC power for the BBU and RRUs.

l

The RRU can be installed on a pole or tower. The maximum configuration of the RRUs is S4/4/4.

l

The requirement for the switch quantity and capacity of the external power input system is 6 x 20 A + 3×12 A. The maximum input current is 100 A. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

Issue 06 (2011-03-30)



11.4.2 Scenario 2: 220 V AC Power Input When 220 V AC power is available on site and the required space for transmission units is not greater than 4 U, the installation scenario of BBU+RRU+APM30+BBC is applicable. When the number of RRUs is not greater than two and the distance between the EPS4815 and RRUs is less than 5 m, the installation scenario of OMB+BBU+4815+RRU is applicable. NOTE

If the required space for transmission units is greater than 4 U, configure a TMC and ensure that the distance between the APM30 and the TMC is not longer than 1 m.

Scenario of Four-Hour Backup Power If the backup power required at the site is not greater than four hours, the installation scenario 1 of BBU+RRU+APM30+BBC is applicable. Figure 11-19 shows installation scenario 1 of BBU+RRU+APM30+BBC.

Issue 06 (2011-03-30)


11-23



Figure 11-19 Installation scenario 1 of BBU+RRU+APM30+BBC

APM30

AC/DC-3U

PDU-2U RRU BBU-2U

TM space-4U

Heater-1U

BAT.48V/92Ah

BBC

BAT.48V/92Ah


11-24

l

The BBC is installed on the floor. By default, the APM30 is stacked on the BBC.

l

The heater in the APM30 is optional. The APM30 provides a maximum of 4 U space for transmission units.

l


l

The RRU can be installed on a pole or tower. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

Issue 06 (2011-03-30)



l


l


Scenario of Eight-Hour Backup Power If eight-hour backup power is required at the site, installation scenario 2 of BBU+RRU+APM30 +BBC is applicable. Figure 11-20 shows installation scenario 2 of BBU+RRU+APM30+BBC. Figure 11-20 Installation scenario 2 of BBU+RRU+APM30+BBC

BAT.48V/92Ah RRU BBC

BAT.48V/92Ah APM30 AC/DC-3U BAT.48V/92Ah PDU-2U BBU-2U

TM space-4U

BBC

BAT.48V/92Ah

Heater-1U

In this installation scenario, Issue 06 (2011-03-30)


11-25



l

The APM30 and the BBCs can be installed on the floor. By default, the two BBCs are stacked.

l


l


l


l


l


Scenario of Half-Hour Backup Power If half-hour backup power is required at the site, the installation scenario of BBU+RRU+APM30 is applicable. Figure 11-21 shows the installation scenario of BBU+RRU+APM30.

11-26


Issue 06 (2011-03-30)



Figure 11-21 Installation scenario of BBU+RRU+APM30

RRU

APM30

AC/DC-3U

PDU-2U BBU-2U TM space-2U Heater-1U BAT


The batteries providing 24 Ah backup power can be placed in the APM30. The batteries support a maximum cell configuration of S4/4/4.

l


l


l


l


Issue 06 (2011-03-30)


11-27



Installation Scenario of OMB+BBU+4815+RRU If the site requires two RRUs or less and the distance between the EPS4815 and RRUs is less than 5 m, the installation scenario of OMB+BBU+EPS4815+RRU can be used. Figure 11-22 shows the installation scenario of OMB+BBU+EPS4815+RRU. Figure 11-22 Installation scenario of OMB+BBU+4815+RRU



l

The OMB provides 2 U space for the BBU and 1 U space for the 4815 power supply system.

l


l

The RRU can be installed on a pole or tower. The maximum configuration of RRUs is S2/2 or O4.

l


11.5 BBU3900 Indoors and RRU3008 Indoors This describes the scenarios that the BBU3900 and RRU3008 of the DBS3900 are installed indoors. 11.5.1 Scenario 1: -48 V DC Power Input When -48 V DC power and the equipment room are available on site, the BBU and RRU can be installed indoors. 11.5.2 Scenario 2: 220 V AC Power Input When 220 V AC power and the equipment room are available on site, the BBU and RRU can be installed indoors. 11-28


Issue 06 (2011-03-30)



11.5.1 Scenario 1: -48 V DC Power Input When -48 V DC power and the equipment room are available on site, the BBU and RRU can be installed indoors. Figure 11-23 shows the indoor centralized installation scenario of the BBU and RRU. Figure 11-23 Indoor centralized installation scenario of the BBU and RRU

S1~S8

B B U

-48V INPUT L1 -48V INPUT L2

R R U

JUMPER

ANT


The BBU is installed in an RRU rack using a transfer piece whose height is 2 u. The RRU rack can be installed on the wall or stand.

l

The RRU can be installed on the wall or stand.

l

For the BBU, the requirement for the switch quantity and capacity of the external power input system is 1 x (5 A to 10 A). For the RRU, the requirement is 1 x (10 A to 20 A).

11.5.2 Scenario 2: 220 V AC Power Input When 220 V AC power and the equipment room are available on site, the BBU and RRU can be installed indoors. Figure 11-24 shows the indoor centralized installation scenario of the BBU and RRU.

Issue 06 (2011-03-30)


11-29



Figure 11-24 Indoor centralized installation scenario of the BBU and RRU

S1~S8

4 8 1 5

AC INPUT L1

B B U

R R U

JUMPER -48V OUTPUT

L2

ANT



l

The BBU and 4815 are installed in an RRU rack using two transfer pieces whose heights are 2 U. The RRU rack can be installed on the wall or stand.

l

The RRU can be installed on the wall or stand.

l


11.6 BBU3900 Indoors and RRU3008 Outdoors This describes the scenarios that the BBU3900 and RRU3008 of the DBS3900 are installed indoors and outdoors respectively. 11.6.1 Scenario 1: -48 V DC Power Input When -48 V DC power is available on site, the installation scenario of BBU+RRU+DCDU-03B is applicable. 11.6.2 Scenario 2: 220 V AC Power Input When 220 V AC power is available on site, the installation scenario of BBU+RRU+PS4890 +DCDU-03B is applicable.

11-30


Issue 06 (2011-03-30)



11.6.1 Scenario 1: -48 V DC Power Input When -48 V DC power is available on site, the installation scenario of BBU+RRU+DCDU-03B is applicable. Figure 11-25 shows the installation scenario of BBU+RRU+DCDU-03B. Figure 11-25 Installation scenario of BBU+RRU+DCDU-03B


The BBU and DCDU-03B are installed in an indoor 19-inch rack.

l


l

The requirement for the switch quantity and capacity of the external power input system is 1 x (63 A to 100 A). The 63 A input is recommended.

11.6.2 Scenario 2: 220 V AC Power Input When 220 V AC power is available on site, the installation scenario of BBU+RRU+PS4890 +DCDU-03B is applicable. Figure 11-26 shows the installation scenario of BBU+RRU+PS4890+DCDU-03B.

Issue 06 (2011-03-30)


11-31



Figure 11-26 Installation scenario of BBU+RRU+PS4890+DCDU-03B


The BBU and DCDU-03B are installed in an indoor PS4890.

l


l


11-32


Issue 06 (2011-03-30)


12

12 Typical Scenarios of the DBS3900 (with the AC RRU)

Typical Scenarios of the DBS3900 (with the AC RRU)

About This Chapter This describes the typical scenarios of the DBS3900 configured with the BBU3900 and AC RRU. 12.1 BBU3900 Indoors and RRU Indoors This describes the scenarios of the BBU3900 and RRU installed indoors. The scenarios are categorized into two types: sites with DC power supply and sites without DC power supply. In such scenarios, the RRU is remotely installed. The RRU3004 has the same power supply mode and installation mode as the RRU3008. 12.2 BBU3900 Indoors and RRU Outdoors This describes the scenarios of the BBU3900 installed indoors and RRU outdoors. The scenarios are categorized into two types: sites with DC power supply and sites without DC power supply. In such scenarios, the RRU is remotely installed. The RRU3004 has the same power supply mode and installation mode as the RRU3008.

Issue 06 (2011-03-30)


12-1



12.1 BBU3900 Indoors and RRU Indoors This describes the scenarios of the BBU3900 and RRU installed indoors. The scenarios are categorized into two types: sites with DC power supply and sites without DC power supply. In such scenarios, the RRU is remotely installed. The RRU3004 has the same power supply mode and installation mode as the RRU3008. The requirements for the upper-level MCB of the BBU3900 and RRU are as follows: l

The requirements for the DC upper-level MCB of the BBU3900 is 5 A to 10 A.

l

The requirements for the AC upper-level MCB of the RRU is 5 A to 10 A.

Sites with DC Power Supply If a site supplies DC power, the installation scenario of the BBU3900 and RRU is shown in Figure 12-1. Figure 12-1 Installation scenario of the BBU3900 and RRU (1)

19-inch rack

RRU BBU3900-2U

AC DC

(indoor)

In this scenario,

12-2

l

The DC power is supplied to the BBU3900 directly by the site.

l

The BBU3900 can be installed in a 19-inch rack or in the spare space of the customer equipment.

l

The RRU is directly supplied with AC power.

l

The RRU can be installed on the wall. Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd.

Issue 06 (2011-03-30)



Sites Without DC Power Supply If a site does not supply DC power and the BBU3900 has no requirements for power backup, the installation scenarios of the BBU3900 and RRU are shown in Figure 12-2. Figure 12-2 Installation scenario of the BBU3900 and RRU (2)

19-inch rack

RRU

4815 BBU3900-2U

AC AC

(indoor)

In this scenario, l

The 4815 serves as an AC/DC conversion unit. It converts AC power into DC power for the BBU3900.

l

The BBU3900 and 4815 can be installed in the spare space of the customer equipment or in a 19-inch rack.

l


l

The RRU can be installed on the wall.

If a site does not supply DC power and the BBU3900 has requirements for power backup, the installation scenarios of the BBU3900 and RRU are shown in Figure 12-3.

Issue 06 (2011-03-30)


12-3



Figure 12-3 Installation scenario of the BBU3900 and RRU (3)

PS4890 EPS4890-3U DCDU-04-1U DCDU-03-1U

RRU

BBU3900-2U

AC

Battery

AC (indoor)

In this scenario, l

The PS4890 is used to convert AC power into DC power. It supplies power and provides installation space for the BBU3900.

l

If configured with the 50 Ah batteries, the PS4890 can provide power backup for a minimum of 24 hours for the BBU3900.

l

The BBU3900 is installed in the PS4890.

l


l

The RRU can be installed on the wall.

12.2 BBU3900 Indoors and RRU Outdoors This describes the scenarios of the BBU3900 installed indoors and RRU outdoors. The scenarios are categorized into two types: sites with DC power supply and sites without DC power supply. In such scenarios, the RRU is remotely installed. The RRU3004 has the same power supply mode and installation mode as the RRU3008. The requirements for the upper-level MCB of the BBU3900 and RRU are as follows: l

The requirements for the DC upper-level MCB of the BBU3900 is 5 A to 10 A.

l

The requirements for the AC upper-level MCB of the RRU is 5 A to 10 A.

Sites with DC Power Supply If a site supplies DC power, the installation scenario of the BBU3900 and RRU is shown in Figure 12-4. 12-4


Issue 06 (2011-03-30)




19-inch rack

RRU BBU3900-2U

DC

AC

(indoor)

(outdoor)

In this scenario, l

The DC power is directly supplied to the BBU3900 by the site.

l

The BBU3900 can be installed in a 19-inch rack or in the spare space of the customer equipment.

l


l

The RRU can be installed on the pole or wall.

Sites Without DC Power Supply If a site does not supply DC power and the BBU3900 has no requirements for power backup, the installation scenarios of the BBU3900 and RRU are shown in Figure 12-5.

Issue 06 (2011-03-30)


12-5




19-inch rack

4815

RRU

BBU3900-2U

AC

AC

(indoor)

(outdoor)

In this scenario, l

The 4815 serves as an AC/DC conversion unit. It converts AC power into DC power for the BBU3900.

l

The BBU3900 and 4815 can be installed in the spare space of the customer equipment or in a 19-inch rack.

l


l


If a site does not supply DC power and the BBU3900 has requirements for power backup, the installation scenarios of the BBU3900 and RRU are shown in Figure 12-6.

12-6


Issue 06 (2011-03-30)




PS4890 EPS4890-3U DCDU-04-1U DCDU-03-1U

RRU

BBU3900-2U

AC Battery

AC

(indoor)

(outdoor)

In this scenario, l

The PS4890 is used to convert AC power into DC power. It supplies power and provides installation space for the BBU3900.

l

If configured with the 50 Ah batteries, the PS4890 can provide power backup for a minimum of 24 hours for the BBU3900.

l

The BBU3900 is installed in the PS4890.

l


l


Issue 06 (2011-03-30)


12-7

DBS3900 GSM Technical Description(V100R012_06)(PDF)-En

Recommend Documents