DBS3900 Product Description(V200_01)

DBS3900

V200

Product Description

Issue 01

Date 2008-04-30

Part Number

Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For anyassistance, please contact our local office or company headquarters.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Copyright © Huawei Technologies Co., Ltd. 2008. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but the statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

http://www.huawei.com

mailto:[email protected]

Contents

About This Document.....................................................................................................................1

1 DBS3900 Product Family..........................................................................................................1-1

2 Introduction to the DBS3900....................................................................................................2-12.1 System Architecture of the DBS3900.............................................................................................................2-22.2 Logical Structure of the DBS3900..................................................................................................................2-2

2.2.1 Logical Structure of the BBU3900.........................................................................................................2-32.2.2 Logical Structure of the RRU.................................................................................................................2-4

2.3 Software Structure of the NodeB....................................................................................................................2-5

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

4 Topologies of the DBS3900......................................................................................................4-14.1 Topologies of the BBU3900...........................................................................................................................4-24.2 Topologies of the RRU...................................................................................................................................4-3

5 Clock Synchronization Modes of the NodeB.......................................................................5-1

6 Operation and Maintenance of the NodeB...........................................................................6-16.1 OM Modes of the NodeB................................................................................................................................6-26.2 OM Functions of the NodeB...........................................................................................................................6-3

7 Specifications of the DBS3900.................................................................................................7-17.1 Capacity Specifications of the DBS3900........................................................................................................7-27.2 RF Specifications of the DBS3900.................................................................................................................7-27.3 Engineering Specifications of the DBS3900...................................................................................................7-4

7.3.1 Engineering Specifications of the BBU3900.........................................................................................7-47.3.2 Engineering Specifications of the RRU3804.........................................................................................7-57.3.3 Engineering Specifications of the RRU3801E.......................................................................................7-57.3.4 Engineering Specifications of the SRXU...............................................................................................7-6

7.4 Surge Protection Specifications of Ports on the DBS3900.............................................................................7-67.4.1 Surge Protection Specifications of Ports on the BBU3900....................................................................7-77.4.2 Surge Protection Specifications of Ports on the RRU............................................................................7-77.4.3 Surge Protection Specifications of Ports on the SRXU.........................................................................7-8

7.5 Ports on the DBS3900.....................................................................................................................................7-87.5.1 Ports on the BBU3900............................................................................................................................7-9

DBS3900Product Description Contents

Issue 01 (2008-04-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

i

7.5.2 Ports on the RRU..................................................................................................................................7-107.5.3 Ports on the SRXU...............................................................................................................................7-11

7.6 Compliance Standards of the DBS3900........................................................................................................7-12

8 Environmental Conditions of the DBS3900..........................................................................8-18.1 Working Environment Requirements of the DBS3900...................................................................................8-28.2 Transportation Requirements of the DBS3900...............................................................................................8-48.3 Storage Requirements of the DBS3900..........................................................................................................8-7

Index.................................................................................................................................................i-1

ContentsDBS3900

Product Description

ii Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

Issue 01 (2008-04-30)

Figures

Figure 1-1 Function modules of the DBS3900....................................................................................................1-1Figure 2-1 System architecture of the DBS3900..................................................................................................2-2Figure 2-2 Logical structure of the BBU3900......................................................................................................2-3Figure 2-3 Logical structure of the RRU..............................................................................................................2-4Figure 2-4 Software structure of the NodeB........................................................................................................2-6Figure 4-1 Star topology.......................................................................................................................................4-2Figure 4-2 Tree topology......................................................................................................................................4-2Figure 4-3 Chain topology...................................................................................................................................4-3Figure 4-4 Typical topologies between the BBU and the RRUs.........................................................................4-4Figure 6-1 NodeB OM network...........................................................................................................................6-2

DBS3900Product Description Figures


iii

Tables

Table 3-1 Typical configurations of the DBS3900..............................................................................................3-1Table 5-1 Clock synchronization modes supported by the NodeB......................................................................5-1Table 7-1 Capacity of the BBU3900....................................................................................................................7-2Table 7-2 Capacity of the RRU3804....................................................................................................................7-2Table 7-3 Capacity of the RRU3801E..................................................................................................................7-2Table 7-4 Working frequency bands of the DBS3900.........................................................................................7-3Table 7-5 Output power per carrier when each sector is configured with one RRU3804....................................7-3Table 7-6 Receiver sensitivity (band I)................................................................................................................7-3Table 7-7 Receiver sensitivity (other bands)........................................................................................................7-3Table 7-8 Power input to the BBU3900...............................................................................................................7-4Table 7-9 Power input to the RRU3804...............................................................................................................7-5Table 7-10 Power input to the RRU3801E...........................................................................................................7-6Table 7-11 Ports on the WMPT............................................................................................................................7-9Table 7-12 Ports on the UTRP.............................................................................................................................7-9Table 7-13 Ports on the WBBP............................................................................................................................7-9Table 7-14 Ports on the UPEU.............................................................................................................................7-9Table 7-15 Power supply port on the RRU........................................................................................................7-10Table 7-16 Transmission ports on the RRU.......................................................................................................7-10Table 7-17 Alarm port on the RRU....................................................................................................................7-10Table 7-18 Specifications of the alarm port on the RRU...................................................................................7-11Table 7-19 Other ports on the RRU....................................................................................................................7-11Table 7-20 Power supply ports on the SRXU....................................................................................................7-11Table 7-21 Transmission ports on the SRXU.....................................................................................................7-12Table 7-22 Other ports on the SRXU.................................................................................................................7-12Table 8-1 Climatic requirements..........................................................................................................................8-2Table 8-2 Requirements for the density of physically active materials................................................................8-3Table 8-3 Requirements for the density of chemically active materials..............................................................8-3Table 8-4 Mechanical stress requirements...........................................................................................................8-3Table 8-5 Climatic requirements..........................................................................................................................8-4Table 8-6 Requirements for the density of physically active materials................................................................8-5Table 8-7 Requirements for the density of chemically active materials..............................................................8-5Table 8-8 Mechanical stress requirements...........................................................................................................8-6Table 8-9 Climatic requirements..........................................................................................................................8-7

DBS3900Product Description Tables


v

Table 8-10 Requirements for the density of physically active materials..............................................................8-8Table 8-11 Requirements for the density of chemically active materials............................................................ 8-8Table 8-12 Mechanical stress requirements......................................................................................................... 8-9

TablesDBS3900

Product Description

vi Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

Issue 01 (2008-04-30)

About This Document

PurposeThis document describes the software and hardware structure, subsystems, configuration types,clock synchronization, and topologies of the DBS3900. This document also lists the technicalspecifications of the DBS3900 such as the capacity specifications, RF specifications,engineering specifications, surge protection specifications, and physical interface specifications.

Product VersionThe following table lists the product version related to this document.

Product Name Product Version

DBS3900 V200R010

Intended AudienceThis document is intended for:

l Network planners

l Field engineers

l System engineers

Change HistoryFor changes in the document, refer to Changes in DBS3900 Product Description.

Organization1 DBS3900 Product Family

This describes the function modules and auxiliary devices of the DBS3900 system. The functionmodules are the BBU3900 and the RRU, and the auxiliary devices are the APM30, OFB, andEMUA.

2 Introduction to the DBS3900

The DBS3900 is a new WCDMA distributed NodeB developed by Huawei, featuring an industryleading modular design, a small size, a large capacity, low power consumption, and quickdeployment.

DBS3900Product Description About This Document


1

3 Configuration Types of the DBS3900

This describes the configuration types of the DBS3900. Capacity expansion can be implementedthrough addition of modules or license upgrade. When license upgrade is required, the capacitycan be expanded by 16 cells at a time. At an early stage of network deployment, you can useconfigurations of small capacity such as 3 x 1. Along with the increase in the number of UEs,you can upgrade the system to a larger capacity configuration such as 3 x 2 and 3 x 4.

4 Topologies of the DBS3900

This describes the topologies of the DBS3900, namely, the topologies between the BBU3900and the RNC and those between the BBU3900 and the RRU.

5 Clock Synchronization Modes of the NodeB

The NodeB supports the following clock synchronization modes: Iub interface clock, GPS clock,and internal clock.

6 Operation and Maintenance of the NodeB

The software, hardware, and configuration of the NodeB is managed, monitored, and maintainedthrough the NodeB OM system. Various OM modes are provided to meet maintenancerequirements in different application scenarios.

7 Specifications of the DBS3900

This describes the specifications of the DBS3900 such as capacity specifications, RFspecifications, engineering specifications, surge protection specifications, physical interfacespecifications, compliance standards, and environmental conditions.

8 Environmental Conditions of the DBS3900

This describes the environmental conditions of the DBS3900. The environmental conditionsconsist of working environment requirements, transportation requirements, and storagerequirements.

Conventions

1. Symbol Conventions

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

Symbol Description

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

WARNINGIndicates a hazard with a medium or low level of risk which, ifnot avoided, could result in minor or moderate injury.

CAUTIONIndicates a potentially hazardous situation that, if not avoided,could cause equipment damage, data loss, and performancedegradation, or unexpected results.

About This DocumentDBS3900

Product Description

2 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

Issue 01 (2008-04-30)

Symbol Description

TIP Indicates a tip that may help you solve a problem or save yourtime.

NOTE Provides additional information to emphasize or supplementimportant points of the main text.

2. 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. Forexample,log in as user root .

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

3. Command Conventions


Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italic.

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

{x | y | ...} Alternative items are grouped in braces and separated by verticalbars.One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets andseparated by vertical bars.One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by verticalbars.A minimum of one or a maximum of all can be selected.

[ x | y | ... ] * Alternative items are grouped in braces and separated by verticalbars.A minimum of zero or a maximum of all can be selected.

4. GUI Conventions


Boldface Buttons,menus,parameters,tabs,window,and dialog titles are inboldface. For example,click OK.

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

DBS3900Product Description About This Document


3

5. Keyboard Operation


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

Key1+Key2 Press the keys concurrently.For example,pressing Ctrl+Alt+Ameans the three keys should be pressed concurrently.

Key1,Key2 Press the keys in turn.For example,pressing Alt,A means the twokeys should be pressed in turn.

6. Mouse Operation

Action Description

Click Select and release the primary mouse button without moving thepointer.

Double-click Press the primary mouse button twice continuously and quicklywithout moving the pointer.

Drag Press and hold the primary mouse button and move the pointerto a certain position.

About This DocumentDBS3900

Product Description

4 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

Issue 01 (2008-04-30)

1 DBS3900 Product Family

This describes the function modules and auxiliary devices of the DBS3900 system. The functionmodules are the BBU3900 and the RRU, and the auxiliary devices are the APM30, OFB, andEMUA.

Function Modules of the DBS3900Figure 1-1 shows the function modules of the DBS3900.

Figure 1-1 Function modules of the DBS3900

FunctionModule

Description

BBU3900 Baseband unit. It processes baseband signals and provides the interfacebetween the DBS3900 and the RNC.

RRU Outdoor remote radio unit. It is responsible for signal processing andtransmission between the antenna system and the BBU3900. There are twoRRU models of different processing capabilities: the 60 W 4-carrierRRU3804 and the 40 W 2-carrier RRU3801E.

DBS3900Product Description 1 DBS3900 Product Family


1-1

Auxiliary Devices of the DBS3900AuxiliaryDevice

Description

APM30 PowerCabinet

Auxiliary power backup system for outdoor application. The APM30power cabinet provides the following functions:l -48 V DC power output

l Temperature control

l 2 U or 7 U space for your devices, depending on the configuration ofbatteries

For detailed functions of the APM30 power cabinet, refer to the APM30User Guide.

OFB Outdoor facility box for DC power distribution and transmission. TheOFB provides the following functions:l 11 U space for your devices

l Heat dissipation

l Alarm reporting

For detailed functions of the OFB, refer to the OFB User Guide.

EMUA Environment monitoring unit. The EMUA provides the followingfunctions:l Environment monitoring

l Intrusion monitoring

l Power distribution monitoring

For detailed functions of the EMUA, refer to the EMUA User Guide.

1 DBS3900 Product FamilyDBS3900

Product Description

1-2 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

Issue 01 (2008-04-30)

2 Introduction to the DBS3900

About This Chapter

The DBS3900 is a new WCDMA distributed NodeB developed by Huawei, featuring an industryleading modular design, a small size, a large capacity, low power consumption, and quickdeployment.

2.1 System Architecture of the DBS3900This describes the system architecture of the DBS3900. The function modules in the systemenable different WCDMA coverage solutions to meet the requirements in different scenarios.

2.2 Logical Structure of the DBS3900This describes the logical structure of the DBS3900, namely, the logical structure of theBBU3900 and that of the RRU.

2.3 Software Structure of the NodeBThe NodeB software consists of the platform software, signaling protocol software, operationand maintenance (OM) software, and data center. The signaling protocol software, OM software,and data center belong to application software. The platform software supports the applicationsoftware.

DBS3900Product Description 2 Introduction to the DBS3900


2-1

2.1 System Architecture of the DBS3900This describes the system architecture of the DBS3900. The function modules in the systemenable different WCDMA coverage solutions to meet the requirements in different scenarios.

Figure 2-1 shows the system architecture of the DBS3900.

Figure 2-1 System architecture of the DBS3900

l Optical cables are used to connect the BBU3900 to the RRU.

l The LMT refers to the operation and maintenance (OM) terminal that is installed with theHuawei Local Maintenance Terminal software and is connected to the OM network of NEs.A DBS3900 system can be maintained on the LMT through the BBU3900.

l The M2000 is a mobile Network Element (NE) management platform on which HuaweiNEs can be collectively managed.

l The antenna system receives uplink signals and transmits downlink signals.

2.2 Logical Structure of the DBS3900This describes the logical structure of the DBS3900, namely, the logical structure of theBBU3900 and that of the RRU.

2.2.1 Logical Structure of the BBU3900This describes the logical structure of the BBU3900. The BBU3900, which features a modulardesign, consists of the transport subsystem, baseband subsystem, control subsystem, and powermodule.

2.2.2 Logical Structure of the RRUThis describes the logical structure of the RRU. The RRU, which features a modular design,consists of the interface module, MTRX, Power Amplifier (PA), duplexer, and Low NoiseAmplifier (LNA). The SRXU is an extended RF interface module.

2 Introduction to the DBS3900DBS3900

Product Description


Issue 01 (2008-04-30)

2.2.1 Logical Structure of the BBU3900This describes the logical structure of the BBU3900. The BBU3900, which features a modulardesign, consists of the transport subsystem, baseband subsystem, control subsystem, and powermodule.

Figure 2-2 shows the logical structure of the BBU3900.

Figure 2-2 Logical structure of the BBU3900

Transport Subsystem

The functions of the transport subsystem are as follows:

l Providing physical interfaces between the NodeB and the RNC for data communication

l Providing maintenance channels between the BBU3900 and the LMT or the M2000 tooperate and maintain the BBU3900

Baseband Subsystem

The baseband subsystem processes uplink and downlink baseband data. The functions of thebaseband subsystem are performed by the following modules:

l Uplink baseband data processing module: consists of the demodulation unit and thedecoding unit. In this module, uplink baseband data is processed into despreading softdecision symbols after access channel searching, access channel demodulation, anddedicated channel demodulation. The symbols are then sent to the RNC through thetransport subsystem after decoding and Frame Protocol (FP) processing.

l Downlink baseband data processing module: consists of the modulation unit and the codingunit. The module receives the service data from the transport subsystem and sends theservice data to the FP processor for FP processing. The signals are finally sent to theinterface module after encoding, transport channel mapping, physical channel generating,framing, spreading, modulation, and power control combination.

In the baseband subsystem, the BBU3900 has an integrated CPRI interface module that connectsthe BBU3900 to the RRU.



2-3

Control SubsystemThe control subsystem manages the entire distributed NodeB. The subsystem performs OM,processes signaling, and provides system clocks.l The OM module has functions such as equipment management, configuration management,

alarm management, software management, and commissioning management.l The signaling processor has functions such as NBAP signaling processing, ALCAP

processing, SCTP processing, and logical resource management.l The clock module has functions such as providing a phase-locked line clock extracted from

the Iub interface (the clock is extracted from an E1, optical port, or FE), a GPS clock. TheBBU extracts the clock from the Iub interface and then provides a system clock for theNodeB after frequency dividing, phase locking, and phase adjusting.

Power ModuleThe power module converts -48 V or +24 V DC power to the power required by the boards andprovides a port for the connection to an external monitoring device.

2.2.2 Logical Structure of the RRUThis describes the logical structure of the RRU. The RRU, which features a modular design,consists of the interface module, MTRX, Power Amplifier (PA), duplexer, and Low NoiseAmplifier (LNA). The SRXU is an extended RF interface module.

Figure 2-3 shows the logical structure of the RRU.

Figure 2-3 Logical structure of the RRU

Interface ModuleThe functions of the interface module are as follows:l Receiving the downlink baseband data from the BBU3900

l Transmitting the uplink baseband data to the BBU3900 and forwarding data of the cascadedRRU

MTRXThe MTRX has two RX channels and one TX channel for RF signals.


Product Description


Issue 01 (2008-04-30)

The functions of uplink RX channels are as follows:l Down-conversion of the RX signals to IF signals

l Amplification of the IF signals

l Analog-to-digital conversion

l Digital down-conversion

l Matched filtering

l Digital Automatic Gain Control (DAGC)

The functions of the downlink TX channel are as follows:l Shaping and filtering of downlink spreading signals

l Digital-to-analog conversion

l Up-conversion of RF signals to the transmitting band

PAThe PA amplifies RF signals of low power. The RF signals are from the MTRX.

DuplexerThe functions of the duplexer are as follows:

l Multiplexing RX signals and TX signals. This enables RX signals and TX signals to sharethe same antenna channel.

l Filtering RX signals and TX signals.

LNAThe LNA amplifies the signals received from antennas.

SRXUThe SRXU is an extended RF interface module that provides two RX channels for RF signals.

The functions of RX channels are as follows:

l Down-conversion of the RX signals to IF signals

l Amplification of the IF signals

l Analog-to-digital conversion

l Digital down-conversion

l Matched filtering

l DAGC

2.3 Software Structure of the NodeBThe NodeB software consists of the platform software, signaling protocol software, operationand maintenance (OM) software, and data center. The signaling protocol software, OM software,and data center belong to application software. The platform software supports the applicationsoftware.



2-5

NOTE

NodeB is the joint name for the BTS3900, BTS3900A, DBS3900, and iDBS3900.

Figure 2-4 shows the software structure of the NodeB.

Figure 2-4 Software structure of the NodeB

Platform Software

The platform software has the following functions:

l Timing management

l Task management

l Memory management

l Module management

l Management of the loading and running of the application software

l Proving message transfer mechanism between modules

l Tracing massages between modules for troubleshooting

Signaling Protocol Software

The signaling protocol software has the following functions:

l Radio network layer protocol processing. The radio network layer protocol is responsiblefor signaling data configuration, NBAP protocol processing, RRC protocol processing overBCH, the outer loop power control frame and wireless parameter update frame in FP, andthe mapping and management between NodeB internal physical resources and logicalresources.

l Transport network layer protocol processing. The transport network layer protocol isresponsible for transport data configuration, ALCAP protocol processing, and SAALprotocol processing.

l Managing NodeB internal logical resources (cells or channels) and also the mappingbetween physical resources and logical resources.


Product Description


Issue 01 (2008-04-30)

OM SoftwareThe OM software performs OM for the NodeB in cooperation with the LMT or M2000. TheOM software has the following functions: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 CenterThe data center stores the configuration data of each module. The configuration data is savedin .xml format.



2-7

3 Configuration Types of the DBS3900

This describes the configuration types of the DBS3900. Capacity expansion can be implementedthrough addition of modules or license upgrade. When license upgrade is required, the capacitycan be expanded by 16 cells at a time. At an early stage of network deployment, you can useconfigurations of small capacity such as 3 x 1. Along with the increase in the number of UEs,you can upgrade the system to a larger capacity configuration such as 3 x 2 and 3 x 4.

Table 3-1 lists the typical configurations of the DBS3900.

Table 3-1 Typical configurations of the DBS3900

Configuration Number ofWBBPs

Number ofRRU3804s (No TXDiversity)

Number ofRRU3801Es (No TXDiversity)

3 x 1 1 3 3

3 x 2 2 3 3

3 x 3 3 3 6

3 x 4 4 3 6

NOTE

l N x M = sector x carrier. For example, 3 x 1 indicates that each of the three sectors has one carrier.

l Assume that the number of RRUs is a when the RRUs are configured in no TX diversity mode. Then,under the same configuration, the number of RRUs is 2a when the TX diversity mode is applied.

DBS3900Product Description 3 Configuration Types of the DBS3900


3-1

4 Topologies of the DBS3900

About This Chapter

This describes the topologies of the DBS3900, namely, the topologies between the BBU3900and the RNC and those between the BBU3900 and the RRU.

4.1 Topologies of the BBU3900This describes the topologies of the BBU3900. Multiple topologies such as star, tree, and chainare supported between the RNC and the BBU3900s.

4.2 Topologies of the RRUThis describes the topologies of the RRU. Multiple topologies such as star, chain, and ring aresupported between the BBU and RRUs.

DBS3900Product Description 4 Topologies of the DBS3900


4-1

4.1 Topologies of the BBU3900This describes the topologies of the BBU3900. Multiple topologies such as star, tree, and chainare supported between the RNC and the BBU3900s.

Star Topology

The star topology, which is one of the most commonly used topologies, is applicable to denselypopulated areas.

Figure 4-1 shows the star topology.

Figure 4-1 Star topology

Advantages:

l The BBU3900 is directly connected to the RNC through the E1/T1 cable, facilitatingnetworking, construction, maintenance, and capacity expansion.

l Direct data transmission is implemented between the NodeB and the RNC, reducing thenumber of NodeBs that signals travel through and enhancing transmission reliability.

Disadvantage: The star topology requires more transmission resources than other topologies.

Tree Topology

The tree topology is applicable to large but sparsely populated areas.

Figure 4-2 shows the tree topology.

Figure 4-2 Tree topology

4 Topologies of the DBS3900DBS3900

Product Description


Issue 01 (2008-04-30)

Advantage: Fewer transmission cables are required in the tree topology than in the star topology.

Disadvantages:

l Signals travel through many nodes, leading to low transmission reliability and difficultiesof construction and maintenance.

l Faults in an upper-level BBU3900 may affect the lower-level BBU3900(s).

l Capacity expansion is difficult because it may require changes in the network architecture.

l The number of cascading levels cannot exceed five.

Chain TopologyThe chain topology is applicable to belt-shaped and sparsely populated areas, such as areas alonghighways and railways.

Figure 4-3 shows the chain topology.

Figure 4-3 Chain topology

Advantage: The chain topology reduces costs of transmission devices, construction, andtransport link leasing.

Disadvantages:

l Signals travel through many NodeBs, leading to low transmission reliability.

l Faults in an upper-level BBU3900 may affect the lower-level BBU3900(s).

l The number of cascading levels cannot exceed five.

4.2 Topologies of the RRUThis describes the topologies of the RRU. Multiple topologies such as star, chain, and ring aresupported between the BBU and RRUs.

Figure 4-4 shows the typical topologies between the BBU and the RRUs.

DBS3900Product Description 4 Topologies of the DBS3900


4-3

Figure 4-4 Typical topologies between the BBU and the RRUs

NOTE

When the chain topology is applied to the RRUs, a maximum of eight cascading levels at 2.5 Gbit/s andfour cascading levels at 1.25 Gbit/s can be supported if one RRU supports one 2-way RX 1-way TX cell.

4 Topologies of the DBS3900DBS3900

Product Description


Issue 01 (2008-04-30)

5 Clock Synchronization Modes of the NodeB

The NodeB supports the following clock synchronization modes: Iub interface clock, GPS clock,and internal clock.

Table 5-1 describes the clock synchronization modes supported by the NodeB.

Table 5-1 Clock synchronization modes supported by the NodeB

Clock Synchronization Mode Description

Iub interface clock l In ATM transmission mode, you canextract from the Iub port 8 kHz clock withthe precision as 0.05 ppm.

l In IP transmission mode, you can obtainfrom the FE port the IP packages that aresent from the Clock Server at a scheduledtime.

GPS clock l With a frequency stability of 0.0001 ppm,the GPS card provides long-term stableclock signals for the NodeB.

l The NodeB provides the input port for theGPS clock and obtains the clock sourcethrough the external GPS device. Thisenables the BBU to receive the GPS clocksignals when the upper-level clock isunstable or unavailable.

DBS3900Product Description 5 Clock Synchronization Modes of the NodeB


5-1

Clock Synchronization Mode Description

Internal clock l In the absence of external clocks, theinternal clock can ensure that the NodeBworks normally for at least 90 days.

l The internal clock source employs thehigh-performance crystal oscillator andcombines the advanced algorithm and thesoftware phase-locking technology so thatthe internal clock source meets or exceedsthe stratum-3 clock standard. Theprecision of the internal clock is higherthan 0.05 ppm.

5 Clock Synchronization Modes of the NodeBDBS3900

Product Description


Issue 01 (2008-04-30)

6 Operation and Maintenance of the NodeB

About This Chapter

The software, hardware, and configuration of the NodeB is managed, monitored, and maintainedthrough the NodeB OM system. Various OM modes are provided to meet maintenancerequirements in different application scenarios.

6.1 OM Modes of the NodeBThe NodeB supports two OM platforms, that is, the local maintenance terminal (LMT) and theM2000.

6.2 OM Functions of the NodeBThe NodeB provides OM functions such as commissioning management, equipmentmanagement, software management, and alarm management.

DBS3900Product Description 6 Operation and Maintenance of the NodeB


6-1

6.1 OM Modes of the NodeBThe NodeB supports two OM platforms, that is, the local maintenance terminal (LMT) and theM2000.

The features of the NodeB OM modes are as follows:

l The NodeB supports the following OM modes:

– Local maintenance: The NodeB is maintained on the LMT through the local Ethernetport of the NodeB.

– Remote maintenance: The NodeB is maintained through the IP route provided by theRNC. The maintenance is performed on the LMT in an RNC equipment room or on theM2000 client in the centralized maintenance center.

– Reverse maintenance: Another NodeB under the same RNS is maintained on the LMTthrough the local Ethernet port of NodeB and the IP route provided by the RNC.

l Supporting the Bootstrap Protocol (BOOTP) and the Dynamic Host Configuration Protocol(DHCP) when data is not configured or the NodeB is faulty. The NodeB automatically setsup an OM channel to enhance system reliability and to perform remote troubleshooting.

l Supporting configuration baseline and simplifies the configuration rollback process to rollback configuration more reliably.

l Providing the intelligent out-of-service function. Before the NodeB is out of service, theUE is handed over to another 2G or 3G cell when the NodeB gradually reduces the cellpilot power. Such a handover prevents service interruption.

l Providing the topology scanning of RRU networking to automatically monitor the networktopology and to reduce manual operations

l Providing the complete system self-testing function to support remote softwarecommissioning.

Figure 6-1 shows the NodeB OM network.

Figure 6-1 NodeB OM network

The NodeB OM network consists of the following elements:

6 Operation and Maintenance of the NodeBDBS3900

Product Description


Issue 01 (2008-04-30)

l LMT: refers to the operation and maintenance (OM) terminal that is installed with theHuawei LMT software group and connected to the actual OM network of the related NE.Through the LMT, you can operate and maintain one NodeB.

l NodeB: is an object to be maintained.

l RAN configuration system: configures and adjusts the data of the RNC and NodeB.

l M2000: maintains multiple NodeB systems in a centralized way.

l OM channel: provides maintenance channels between the NodeB and the LMT or M2000.

6.2 OM Functions of the NodeBThe NodeB provides OM functions such as commissioning management, equipmentmanagement, software management, and alarm management.

Commissioning managementCommissioning management has the following functions:

l Equipment performance statistics, such as CPU usage, clock source quality test, and powerdetection

l Routine test, such as E1/T1 performance statistics

l Service performance test, such as test 141, UL channel scanning, and service resourceoccupancy statistics

NOTE

Test 141 refers to the test based on the 3GPP TS25.141 protocol. This test is used to measure theperformance counters regarding the NodeB RF.

Equipment managementEquipment management consists of equipment maintenance and data configuration. Equipmentmanagement has the following functions:

l Maintaining the equipment through board reset, equipment status management, equipmentself-testing, active/standby switchover, and time correction

l Configuring the equipment by configuring, querying and backing up equipment parameters,such as the NodeB hardware, clock, algorithm, and RF parameter configuration

Software managementSoftware management has the following functions:

l Activating the software

l Checking the compatibility of software and hardware versions

l Managing versions, such as querying software and hardware versions

l Upgrading the software version

Alarm managementAlarm management consists of equipment alarm management and environment alarmmanagement.

DBS3900Product Description 6 Operation and Maintenance of the NodeB


6-3

l The alarm management system can detect and report equipment faults in real time. TheLMT or the M2000 can display alarm information and provide alarm-handling suggestions.The alarm management system of the M2000 connects to an alarm box through a serialport and supports audible and visual alarms. The maintenance personnel can subscribe tothe alarm information that can be forwarded to their handsets or pagers so that they canhandle the faults in time.

l Environment alarm managementTypically, equipment rooms of NodeBs are unmanned and distributed over a vast area. Theequipment in such rooms works in a relatively adverse environment, and may incuremergencies such as fire hazard and flood. To help you handle such emergencies, theNodeB provides a complete environment alarm management system.

Alarm management has the following functions:

l Alarm detecting

l Alarm reporting

l Alarm masking

l Alarm affirming

l Alarm pre-processing

l Alarm correlation processing

l Alarm help information processing

Security ManagementThe operation rights for maintenance personnel are divided into multiple levels when NodeBworks together with the M2000. This ensures that the running equipment is free frommisoperation.

Environment MonitoringThe environment monitoring system provides customized solutions regarding door control,infrared, smoke, water immersion, humidity, and temperature.

6 Operation and Maintenance of the NodeBDBS3900

Product Description


Issue 01 (2008-04-30)

7 Specifications of the DBS3900

About This Chapter

This describes the specifications of the DBS3900 such as capacity specifications, RFspecifications, engineering specifications, surge protection specifications, physical interfacespecifications, compliance standards, and environmental conditions.

7.1 Capacity Specifications of the DBS3900This describes the capacity specifications of the DBS3900. The capacity of the BBU3900 isrepresented by the number of supported CEs and cells. The capacity of the RRU is representedby the number of supported sectors and carriers.

7.2 RF Specifications of the DBS3900This describes the RF specifications of the DBS3900. The RF specifications consist of theworking frequency bands, transmitter specifications, and receiver specifications.

7.3 Engineering Specifications of the DBS3900This describes the engineering specifications of the DBS3900, which consist of the dimensions,weight, power input, and power consumption.

7.4 Surge Protection Specifications of Ports on the DBS3900This describes the surge protection specifications of ports on the DBS3900. The ports refer tothose on the BBU3900, RRU, and SRXU.

7.5 Ports on the DBS3900This describes the ports on the DBS3900, namely, ports on the BBU3900, RRU, and SRXU.

7.6 Compliance Standards of the DBS3900This describes the compliance standard of the DBS3900. It complies with standards regardingtransportation, storage, anti-seismic performance, and Electromagnetic Compatibility (EMC).

DBS3900Product Description 7 Specifications of the DBS3900


7-1

7.1 Capacity Specifications of the DBS3900This describes the capacity specifications of the DBS3900. The capacity of the BBU3900 isrepresented by the number of supported CEs and cells. The capacity of the RRU is representedby the number of supported sectors and carriers.

Capacity of the BBU3900

Table 7-1 Capacity of the BBU3900

Item Capacity of one BBU3900

Number of UL CEs 1536

Number of DL CEs 1536

Number of cells 24

Capacity of the RRU

Table 7-2 Capacity of the RRU3804

Item Quantity

Maximum sectors 1

Maximum carriers 4

Table 7-3 Capacity of the RRU3801E

Item Quantity

Maximum sectors 1

Maximum carriers 2

7.2 RF Specifications of the DBS3900This describes the RF specifications of the DBS3900. The RF specifications consist of theworking frequency bands, transmitter specifications, and receiver specifications.

7 Specifications of the DBS3900DBS3900

Product Description


Issue 01 (2008-04-30)

Working Frequency Bands

Table 7-4 Working frequency bands of the DBS3900

Frequency Band RX Band TX Band

Band I (2,100 MHz) 1,920 MHz to 1,980 MHz 2,110 MHz to 2,170 MHz

Band II (1,900 MHz) 1,850 MHz to 1,910 MHz 1,930 MHz to 1,990 MHz

Band V/VI (850 MHz) 824 MHz to 849 MHz 869 MHz to 894 MHz

Band IV (AWS) 1,710 MHz to 1,755 MHz 2,110 MHz to 2,155 MHz

Transmitter Specifications

Table 7-5 Output power per carrier when each sector is configured with one RRU3804

Number of Carriers Output Power per Carrier (W)

1 60

2 30

3 20

4 15

NOTE

The previously mentioned output power refers to the rated output power of each carrier at the TX antennaconnector of the distributed NodeB.

Receiver Specificationsl Receiver sensitivity

Table 7-6 and Table 7-7 list the receiver sensitivity of the DBS3900.

Table 7-6 Receiver sensitivity (band I)

RX DiversityMode

Receiver Sensitivity (dBm)1 Receiver Sensitivity (dBm)2

1-way -125.8 -126.5

2-way -128.6 -129.3

Table 7-7 Receiver sensitivity (other bands)

RX DiversityMode

Receiver Sensitivity (dBm)1 Receiver Sensitivity (dBm)2

1-way -125.6 -126.3

2-way -128.4 -129.1



7-3

NOTE

l 1: Values in this column refer to the receiver sensitivity (over entire reception bandwidth) at theantenna connector of the distributed NodeB that complies with 3GPP TS 25.104 and provides12.2 kbit/s channels with BER not higher than 0.001

l 2: Values in this column refer to the receiver sensitivity (median performance over receptionbandwidth) at the antenna connector of the distributed NodeB that handles 12.2 kbit/s AMRservices with BER not higher than 0.001

l Maximum access search radius: 200 km

7.3 Engineering Specifications of the DBS3900This describes the engineering specifications of the DBS3900, which consist of the dimensions,weight, power input, and power consumption.

7.3.1 Engineering Specifications of the BBU3900This describes the engineering specifications of the BBU3900.

7.3.2 Engineering Specifications of the RRU3804This describes the engineering specifications of the RRU3804.

7.3.3 Engineering Specifications of the RRU3801EThis describes the engineering specifications of the RRU3801E.

7.3.4 Engineering Specifications of the SRXUThis describes the engineering specifications of the SRXU.

7.3.1 Engineering Specifications of the BBU3900This describes the engineering specifications of the BBU3900.

Dimensions

The dimensions of the BBU3900 are 86 mm x 442 mm x 310 mm (H x W x D).

Weight

In 3 x 2 configuration, the weight of the BBU3900 is 7 kg. In full configuration, the weight is11 kg.

Power Input

Table 7-8 Power input to the BBU3900

Rated Voltage Operating Voltage Range

-48 V DC -38.4 V DC to -57 V DC


Product Description


Issue 01 (2008-04-30)

Power Consumptionl In typical configuration where one WBBP is configured, the power consumption of the

BBU3900 is 100 W.

l The maximum power consumption of the BBU3900 is 320 W. In this case, theBBU3900 has four WBBPs, two WMPTs, and two UTRPs.

7.3.2 Engineering Specifications of the RRU3804This describes the engineering specifications of the RRU3804.

Dimensions

The dimensions of the RRU3804 (excluding the housing and the connectors) are 480 mm x 270mm x 140 mm (H x W x D).

The dimensions of the RRU3804 (including the housing and the connectors) are 520 mm x 280mm x 155 mm (H x W x D).

Weight

The weight of the RRU3804 module is no more than 15 kg. The weight of the RRU3804 moduleand its housing is no more than 16 kg.

Power Input

Table 7-9 Power input to the RRU3804


-48 V DC -36 V DC to -57 V DC

Power Consumption

When the RRU3804 uses one carrier and works at 20 W with a 50% load, it reaches its typicalpower consumption of 100 W. The maximum power consumption of the RRU3804 is 275 W.

7.3.3 Engineering Specifications of the RRU3801EThis describes the engineering specifications of the RRU3801E.

Dimensions

The dimensions of the RRU3801E (excluding the housing and the connectors) are 480 mm x270 mm x 140 mm (H x W x D).

The dimensions of the RRU3801E (including the housing and the connectors) are 520 mm x280 mm x 155 mm (H x W x D).



7-5

Weight

The weight of the RRU3801E module is no more than 15 kg. The weight of the RRU3801Emodule and its housing is no more than 16 kg.

Power Input

Table 7-10 Power input to the RRU3801E


-48 V DC -36 V DC to -57 V DC

Power Consumption

The maximum power consumption of the RRU3801E is 275 W.

7.3.4 Engineering Specifications of the SRXUThis describes the engineering specifications of the SRXU.

Dimensions

The dimensions of the SRXU are 270 mm x 60 mm x 480 mm (W x D x H).

Weight

The weight of the SRXU is no more than 6 kg.

Power Consumption

The maximum power consumption of the SRXU is 30 W.

7.4 Surge Protection Specifications of Ports on the DBS3900This describes the surge protection specifications of ports on the DBS3900. The ports refer tothose on the BBU3900, RRU, and SRXU.

7.4.1 Surge Protection Specifications of Ports on the BBU3900This describes the surge protection specifications of the external ports on the BBU3900.

7.4.2 Surge Protection Specifications of Ports on the RRUThis describes the surge protection specifications of ports on the RRU. The ports are used for-48 V DC power supply, RF, dry contact alarms, and the RET antenna.

7.4.3 Surge Protection Specifications of Ports on the SRXUThis describes the surge protection specifications of ports on the SRXU. The ports are used forDC power supply, RF, dry contact alarms, and the RET antenna.


Product Description


Issue 01 (2008-04-30)

7.4.1 Surge Protection Specifications of Ports on the BBU3900This describes the surge protection specifications of the external ports on the BBU3900.

Surge Protection Specifications of the External Ports on the BBU3900

Application Surge Protection Mode Surge Current orVoltage

DC power supply Differential mode 1 kA

Common mode 2 kA

Signals (except FE/GEelectrical signals)

Differential mode 250 A

Common mode 250 A

Dry contact alarm input Differential mode 250 A

Common mode 250 A

FE/GE electrical signals Differential mode 500 V

Common mode 4,000 V

NOTE

The surge protection specifications of the BBU3900 are based on the surge current waveform of 8/20 μsand the surge voltage waveform of 1.2/50 μs.

7.4.2 Surge Protection Specifications of Ports on the RRUThis describes the surge protection specifications of ports on the RRU. The ports are used for-48 V DC power supply, RF, dry contact alarms, and the RET antenna.

Surge Protection Specifications of the External Ports on the RRU

Application Surge Protection Mode Surge Current

-48 V DC power supply Differential mode 10 kA

Common mode 15 kA

RF Differential mode 8 kA

Common mode 40 kA

Dry contact alarms Differential mode 250 A

Common mode 250 A

RET antenna Differential mode 3 kA

Common mode 5 kA



7-7

NOTE

l The surge protection specifications of the RRU are based on the surge current waveform of 8/20 μs.

l The surge current, unless otherwise specified as the maximum discharge current, refers to a nominaldischarge current.

7.4.3 Surge Protection Specifications of Ports on the SRXUThis describes the surge protection specifications of ports on the SRXU. The ports are used forDC power supply, RF, dry contact alarms, and the RET antenna.

Surge Protection Specifications of the External Ports on the SRXU

Application Surge Protection Mode Surge Current

DC power supply Differential mode 10 kA

Common mode 15 kA

RF Differential mode 8 kA

Common mode 40 kA

Dry contact alarms Differential mode 250 A

Common mode 250 A

RET antenna Differential mode 3 kA

Common mode 5 kA

NOTE

l The surge protection specifications of the SRXU are based on the surge current waveform of 8/20μs.

l The surge current, unless otherwise specified as the maximum discharge current, refers to a nominaldischarge current.

7.5 Ports on the DBS3900This describes the ports on the DBS3900, namely, ports on the BBU3900, RRU, and SRXU.

7.5.1 Ports on the BBU3900This describes the ports on the BBU3900. The ports consist of those on the main function boardssuch as the WMPT, WBBP, UTRP, and UPEU.

7.5.2 Ports on the RRUThis describes the ports on the RRU. The ports consist of grounding ports, power supply ports,transmission ports, alarm ports, and other ports.

7.5.3 Ports on the SRXUThis describes the ports on the SRXU. The ports consist of grounding ports, power supply ports,transmission ports, and other ports.


Product Description


Issue 01 (2008-04-30)

7.5.1 Ports on the BBU3900This describes the ports on the BBU3900. The ports consist of those on the main function boardssuch as the WMPT, WBBP, UTRP, and UPEU.

Ports on BBU3900 Boards

Table 7-11 Ports on the WMPT

Application Quantity Connector Type

E1 1 (4 E1s) DB26

Loading 1 USB

Testing 1 USB

FE electrical signals 1 RJ45

FE optical signals 1 SFP

Commissioning 1 RJ45

GPS signal input 1 SMA

Table 7-12 Ports on the UTRP

Application Quantity ConnectorType

Remarks

E1/T1 2 DB26 Supporting eight E1s/T1s

Table 7-13 Ports on the WBBP

Application Quantity Connector Type

CPRI 3 SFP

Table 7-14 Ports on the UPEU


Remarks

Power supply 1 3V3 -48 V DC power input

Monitoring 2 RJ45 Connecting to externalmonitoring devices



7-9


Remarks

Dry contactalarms

2 RJ45 Providing eight dry contactalarm inputs; connecting tothe external alarm device

7.5.2 Ports on the RRUThis describes the ports on the RRU. The ports consist of grounding ports, power supply ports,transmission ports, alarm ports, and other ports.

Grounding Ports

The RRU has four grounding bolts at the bottom.

Power Supply Ports

Table 7-15 Power supply port on the RRU

Application Port Quantity

Connector Type

Power supply -48 V DC powersupply

1 OT terminal

Transmission Ports

Table 7-16 Transmission ports on the RRU

Port Quantity Data Rate Connector Type

Optical port 2 1.25 Gbit/s ESFP socket

Alarm Ports

Table 7-17 Alarm port on the RRU

Application Port Quantity Connector Type

Alarms 2-channel dry contactalarms, 1-channelRS485 signals

1 DB15


Product Description


Issue 01 (2008-04-30)

Table 7-18 Specifications of the alarm port on the RRU

Item Specification

Closed resistance < 0.2 kilohms

Open resistance > 51 kilohms

Other Ports

Table 7-19 Other ports on the RRU


Connector Type

RET antenna/Powerinput to the SRXU

- 1 DB9, waterproof

RF Main TX/RX 1 DIN, round, and waterproof

RX diversity 1 DIN, round, and waterproof

Interconnectionbetween combinedmodules

1 2W2

7.5.3 Ports on the SRXUThis describes the ports on the SRXU. The ports consist of grounding ports, power supply ports,transmission ports, and other ports.

Grounding PortsThe SRXU has two grounding bolts at the bottom.

Power Supply Ports

Table 7-20 Power supply ports on the SRXU


Connector Type

Power supply DC power from theRRU3804

1 DB9, waterproof



7-11

Transmission Ports

Table 7-21 Transmission ports on the SRXU

Port Quantity Data Rate Connector Type

Optical port 2 1.25 Gbit/s ESFP socket

Other Ports

Table 7-22 Other ports on the SRXU


Connector Type

RET antenna - 1 DB9, waterproof

RF Main RX diversity 1 DIN, round, and waterproof

RX diversity 1 DIN, round, and waterproof

Interconnectionbetween combinedmodules

1 2W2

7.6 Compliance Standards of the DBS3900This describes the compliance standard of the DBS3900. It complies with standards regardingtransportation, storage, anti-seismic performance, and Electromagnetic Compatibility (EMC).

Working Environment

The working environment complies with the following standard:

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

Transportation

The transportation environment complies with the following standard:

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

Storage

The storage environment complies with the following standard:

ETSI EN300019-1-1 V2.1.4(2003-04) class1.2 Weatherprotected,not temperature-controlledstorage locations


Product Description


Issue 01 (2008-04-30)

Anti-Seismic PerformanceThe anti-seismic performance complies with the following standard:

l IEC 60068-2-57 (1999-11) Environmental testing Part 2-57: Tests Test Ff: Vibration Time-history method

EMCThe NodeB meets the EMC requirements and complies with the following standards:

l R & Directive 1999/5/EC

l R & Directive 89/336/EEC

l 3GPP TS 25.113 V3.2.0 (2000-06)

l ETSI EN 301489-1/23

l ETSI EN 301908-1 V2.2.1 (2003-10)

l ITU-R SM.329-10

NOTE

The NodeB is Conformite Europeenne (CE) certified.



7-13

8 Environmental Conditions of the DBS3900

About This Chapter

This describes the environmental conditions of the DBS3900. The environmental conditionsconsist of working environment requirements, transportation requirements, and storagerequirements.

8.1 Working Environment Requirements of the DBS3900This describes the working environment requirements of the DBS3900.

8.2 Transportation Requirements of the DBS3900This describes the transportation requirements of the DBS3900.

8.3 Storage Requirements of the DBS3900This describes the storage requirements of the DBS3900.

DBS3900Product Description 8 Environmental Conditions of the DBS3900


8-1

8.1 Working Environment Requirements of the DBS3900This describes the working environment requirements of the DBS3900.

Climatic RequirementsTable 8-1 lists the climatic requirements for the working environment of the DBS3900.

Table 8-1 Climatic requirements

Item Specification

Altitude ≤ 4,000 m

Air pressure 70 kPa to 106 kPa

Temperature BBU3900: -20℃ to +55℃RRU:l -40℃ to +50℃ (with solar radiation)

l -40℃ to +55℃ (without solar radiation)

Relative humidity BBU3900: 5% to 85%RRU: 5% to 100%

Absolute humidity BBU3900: 1 g/m3 to 25 g/m3

RRU: 1 g/m3 to 30 g/m3

Wind speed ≤ 67 m/s

Protection degree BBU3900: IP20RRU: IP65

Biological RequirementsThe working environment of the DBS3900 should not conducive for the growth of fungus ormildew.

Air Cleanliness RequirementsThe working environment of the DBS3900 should meet the following air cleanlinessrequirements:

l There is no explosive, conductive, magneto-conductive or corrosive dust in the air.

l The density of the physically active materials meets the requirements listed in Table 8-2.

8 Environmental Conditions of the DBS3900DBS3900

Product Description


Issue 01 (2008-04-30)

Table 8-2 Requirements for the density of physically active materials

Physically ActiveMaterial

Unit Density

Suspended dust mg/m3 ≤ 0.01

Falling dust mg/(m2h) ≤ 10

Sand mg/m3 There is no visible sand.

Note:l Suspended dust: diameter ≤ 75 μm

l Falling dust: 75 μm ≤ diameter ≤ 150 μm

l Sand: 150 μm ≤ diameter ≤ 1,000 μm

l The density of the chemically active materials meets the requirements listed in Table8-3.

Table 8-3 Requirements for the density of chemically active materials

Chemically ActiveMaterial

Unit Density

SO2 mg/m3 ≤ 1.50

NH3 mg/m3 ≤ 0.15

Cl2 mg/m3 ≤ 0.30

Mechanical Stress Requirements

Table 8-4 lists the mechanical stress requirements for the working environment of theDBS3900.

Table 8-4 Mechanical stress requirements

Item Subitem Specification

Sinusoidalvibration(ETSIrequirements)

Offset ≤ 3.5 mm -

Acceleration - ≤ 10.0 m/s2

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

Sinusoidalvibration(GR63requirements)

Frequency range: 5-100-5 Hz; acceleration: 1.0 x g; scanningfrequency: 0.25 oct/min; triaxial test



8-3


Unsteady impact Impact responsespectrum II

≤ 100 m/s2

Static payload 0

Anti-seismicrequirements

Earthquake Frequency range: 0.3 Hz to 50 HzZero Period Acceleration (ZPA): 1.5 x g30s

Note:l Impact response spectrum refers to the maximum acceleration response curve generated

by the equipment under the specified impact excitation. Impact response spectrum II meansthat the duration of semi-sine impact response spectrum is 6 ms.

l Static payload refers to the capability of the equipment in a packing case to bear the pressurefrom the top in normal pile-up method.

8.2 Transportation Requirements of the DBS3900This describes the transportation requirements of the DBS3900.

Climatic RequirementsTable 8-5 lists the climatic requirements for the transportation environment of the DBS3900.


Item Specification



Temperature -40℃ to +70℃

Temperature change rate ≤ 3℃/min

Relative humidity 5% to 100%

Solar radiation ≤ 1,120 W/m2

Thermal radiation ≤ 600 W/m2


Waterproofing RequirementsThe transportation environment of the DBS3900 should meet the following waterproofingrequirements:


Product Description


Issue 01 (2008-04-30)

l The packing case is intact.

l The equipment is shaded from the rainwater. Measures are taken to prevent the rainwaterfrom entering the packing case.

l There is no water on the floor of the transportation vehicle.

Biological RequirementsThe transportation environment of the DBS3900 should not conducive for the growth of fungusor mildew.

Air Cleanliness RequirementsThe transportation environment of the DBS3900 should meet the following air cleanlinessrequirements:


l The density of the physically active materials meets the requirements listed in Table 8-6.



Unit Density

Suspended dust mg/m3 –

Falling dust mg/(m2h) ≤ 3.0

Sand mg/m3 ≤ 100




l The density of the chemically active materials meets the requirements listed in Table

8-7.



Unit Density

SO2 mg/m3 ≤ 0.30

H2S mg/m3 ≤ 0.10

NO2 mg/m3 ≤ 0.50

NH3 mg/m3 ≤ 1.00

Cl2 mg/m3 ≤ 0.10



8-5


Unit Density

HCl mg/m3 ≤ 0.10

HF mg/m3 ≤ 0.01

O3 mg/m3 ≤ 0.05

Mechanical Stress Requirements

Table 8-8 lists the mechanical stress requirements for the transportation environment of theDBS3900.



Sinusoidalvibration

Offset ≤ 7.5 mm - -

Acceleration - ≤ 20.0 m/s2 ≤ 40.0 m/s2

Frequencyrange

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

Random vibration Spectraldensity ofacceleration

1 m2/s3 -3 dB Total meansquare rootacceleration:0.781 Grms

Frequencyrange

5 Hz to 20 Hz 20 Hz to 200Hz

Unsteady impact Impactresponsespectrum II

≤ 300 m/s2

Static payload ≤ 10 kPa

Drop - When the mass is less than 20 kg, the free fall is lessthan 1.2 m.When the mass is within the range of 20 kg to 100kg, the free fall is less than 1.0 m.When the mass is more than 100 kg, the free fall isless than 0.25 m.





Product Description


Issue 01 (2008-04-30)

8.3 Storage Requirements of the DBS3900This describes the storage requirements of the DBS3900.

Climatic RequirementsTable 8-9 lists the climatic requirements for the storage environment of the DBS3900.


Item Specification



Temperature -40℃ to +70℃

Temperature change rate ≤ 1℃/min

Relative humidity 10% to 100%

Solar radiation ≤ 1120 W/m2

Thermal radiation ≤ 600 W/m2


Waterproofing RequirementsThe equipment is preferably stored indoors. The indoor storage environment should meet thefollowing waterproofing requirements:

l No water is on the ground of the room. And there is no probability of water entering thepacking case.

l The equipment is stored far away from automatic fire fighting devices or heating facilities.This prevents water from leaking into the packing case.

If the equipment has to be stored outdoors, the outdoor storage environment should meet thefollowing waterproofing requirements:

l The packing case is intact.

l The equipment is shaded from the rainwater. Measures are taken to prevent the rainwaterfrom entering the packing case.

l No water is on the ground. And there is no probability of water entering the packing case.

l The packing case is not exposed to direct sunlight.

Biological RequirementsThe storage environment of the DBS3900 should not conducive for the growth of fungus ormildew.



8-7

Air Cleanliness RequirementsThe storage environment of the DBS3900 should meet the following air cleanlinessrequirements:


l The density of the physically active materials meets the requirements listed in Table8-10.



Unit Density

Suspended dust mg/m3 ≤ 5.00

Falling dust mg/(m2h) ≤ 20.0

Sand mg/m3 ≤ 300




l The density of the chemically active materials meets the requirements listed in Table

8-11.



Unit Density

SO2 mg/m3 ≤ 0.30

H2S mg/m3 ≤ 0.10

NO2 mg/m3 ≤ 0.05

NH3 mg/m3 ≤ 1.00

Cl2 mg/m3 ≤ 0.10

HCl mg/m3 ≤ 0.10

HF mg/m3 ≤ 0.01

O3 mg/m3 ≤ 0.05


Product Description


Issue 01 (2008-04-30)

Mechanical Stress RequirementsThe storage environment of the DBS3900 should meet the mechanical stress requirements listedin Table 8-12.



Sinusoidalvibration

Offset ≤ 7.0 mm -

Acceleration - ≤ 20.0 m/s2

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

Unsteadyimpact

Impact responsespectrum II

≤ 250 m/s2

Static payload ≤ 5 kPa






8-9

Index

Aalarm management, 6-3

BBBU3900

dimension, 7-4logical structure, 2-3port, 7-9power consumption, 7-4power input, 7-4topology, 4-2weight, 7-4

Ccommissioning management, 6-3

DDBS3900

capacity specification, 7-2compliance standard, 7-12configuration type, 3-1product family, 1-1system architecture, 2-2

Eenvironment monitoring, 6-3equipment management, 6-3

Llogical structure

BBU3900, 2-3RRU, 2-4

NNodeB

clock synchronization modes, 5-1software structure, 2-6

Ooperation and maintenance

function of OM subsystem, 6-3OM mode, 6-2

Rreceiver specification, 7-2right management, 6-3RRU

logical structure, 2-4port, 7-10surge protection specification, 7-7topology, 4-3

RRU3801Edimension, 7-5power consumption, 7-5power input, 7-5weight, 7-5

RRU3804dimension, 7-5power consumption, 7-5power input, 7-5weight, 7-5

Ssoftware management, 6-3SRXU

dimension, 7-6port, 7-11power consumption, 7-6surge protection specification, 7-8weight, 7-6

storage requirement, 8-7surge protection specification, 7-7

BBU3900, 7-7SRXU, 7-8

Ttransmitter specification, 7-2

DBS3900Product Description Index


i-1

transportation requirement, 8-4

Wworking environment requirement, 8-2working frequency band, 7-2

IndexDBS3900

Product Description

i-2 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

Issue 01 (2008-04-30)

Documents

DBS3900 Product Description(V200_01)