NodeB Product Description(V200_02)

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NodeB

V200

Product Description

Issue 02

Date 2009-01-05

Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd.


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Notice

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ContentsAbout This Document............................................................11 Changes in the NodeB Product Description...................................1-12 Overview of NodeB Products.................................................2-13 Benefits of the NodeB......................................................3-14 Hardware of the NodeB......................................................4-1

4.1 BBU3900.........................................................................................................................................................4-2

4.1.1 Appearance of the BBU3900.................................................................................................................4-2

4.1.2 Functions of the BBU3900.....................................................................................................................4-2

4.1.3 Boards of the BBU3900.........................................................................................................................4-3

4.1.4 Logical Structure of the BBU3900.........................................................................................................4-7

4.1.5 Ports on the BBU3900............................................................................................................................4-8

4.2 RRU...............................................................................................................................................................4-114.2.1 Appearance of the RRU.......................................................................................................................4-11

4.2.2 Functions of the RRU...........................................................................................................................4-12

4.2.3 Logical Structure of the RRU...............................................................................................................4-13

4.2.4 Ports on the RRU..................................................................................................................................4-14

4.3 WRFU/MRFU...............................................................................................................................................4-15

4.3.1 Appearance of the WRFU/MRFU........................................................................................................4-16

4.3.2 Functions of the WRFU/MRFU...........................................................................................................4-17

4.3.3 Logical Structure of the WRFU/MRFU...............................................................................................4-17

4.3.4 Ports on the WRFU/MRFU..................................................................................................................4-19

4.4 Auxiliary Devices of the NodeB...................................................................................................................4-19

4.4.1 Indoor Macro Cabinet..........................................................................................................................4-20

4.4.2 PS4890.................................................................................................................................................4-22

4.4.3 Outdoor Macro Cabinets......................................................................................................................4-24

4.4.4 Outdoor Mini Cabinet..........................................................................................................................4-29

5 NodeB Products and Application Scenarios...................................5-15.1 Outdoor Distributed NodeB DBS3900...........................................................................................................5-2

5.2 Indoor Macro NodeB BTS3900......................................................................................................................5-4

5.3 Outdoor Separated Macro NodeB BTS3900A................................................................................................5-5

5.4 Outdoor Mini NodeB BTS3900C...................................................................................................................5-9

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5.5 Multi-Mode NodeB.......................................................................................................................................5-10

6 Features of the NodeB......................................................6-17 Typical Configurations of the NodeB........................................7-1

7.1 Typical Configurations of the BTS3900.........................................................................................................7-2

7.2 Typical Configurations of the BTS3900A......................................................................................................7-3

7.3 Typical Configurations of the DBS3900.........................................................................................................7-3

8 Monitoring Principles of the NodeB.........................................8-19 Topologies of the NodeB....................................................9-1

9.1 Topology on the Iub Interface.........................................................................................................................9-2

9.1.1 ATM-Based Topologies.........................................................................................................................9-2

9.1.2 IP-Based Topologies..............................................................................................................................9-4

9.2 Networking on the CPRI Interface..................................................................................................................9-4

10 Operation and Maintenance of the NodeB...................................10-110.1 OM Modes of the NodeB............................................................................................................................10-2

10.2 OM Functions of the NodeB.......................................................................................................................10-3

11 Reliability of the NodeB.................................................11-112 Specifications of the NodeB..............................................12-1

12.1 Specifications of the BTS3900....................................................................................................................12-2

12.2 Specifications of the BTS3900A.................................................................................................................12-4

12.3 Specifications of the DBS3900...................................................................................................................12-7

12.4 Specifications of the BTS3900C...............................................................................................................12-20

13 Compliance Standards of the NodeB........................................13-1Index........................................................................i-1

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FiguresFigure 2-1 Basic modules and auxiliary devices of the NodeB...........................................................................2-2

Figure 2-2 Application scenarios of the NodeB products....................................................................................2-3

Figure 4-1 BBU3900............................................................................................................................................4-2

Figure 4-2 Slots of the BBU3900.........................................................................................................................4-3

Figure 4-3 Typical configuration of the BBU3900..............................................................................................4-5

Figure 4-4 Logical structure of the BBU3900......................................................................................................4-7

Figure 4-5 Appearance of the RRU3801C.........................................................................................................4-12

Figure 4-6 Appearance of the RRU....................................................................................................................4-12

Figure 4-7 Logical structure of the RRU............................................................................................................4-13

Figure 4-8 WRFU...............................................................................................................................................4-16

Figure 4-9 MRFU...............................................................................................................................................4-17

Figure 4-10 Logical structure of the WRFU/MRFU..........................................................................................4-18

Figure 4-11 Single indoor cabinet (-48 V DC)...................................................................................................4-21

Figure 4-12 Single indoor cabinet (+24 V DC)..................................................................................................4-21Figure 4-13 Single indoor cabinet (220 V AC)..................................................................................................4-22

Figure 4-14 Internal structure of the PS4890.....................................................................................................4-24

Figure 4-15 RF cabinet with three WRFUs/MRFUs and the batteries..............................................................4-25

Figure 4-16 RF cabinet with six WRFUs/MRFUs ............................................................................................4-26

Figure 4-17 Structure of the APM30 without batteries......................................................................................4-27

Figure 4-18 Internal structure of the APM30H..................................................................................................4-29

Figure 4-19 Internal structure of the OMB........................................................................................................4-30

Figure 5-1 Integrated application with BBU3900 + RRU + APM.......................................................................5-3

Figure 5-2 Embedded application with existing site equipment..........................................................................5-3

Figure 5-3 Outdoor BBU application with existing site power supply................................................................5-4

Figure 5-4 Indoor macro NodeB (+24 V DC)......................................................................................................5-5

Figure 5-5 BTS3900A with the breathable film (three RFUs configured)..........................................................5-6

Figure 5-6 BTS3900A with the breathable film (six RFUs configured)..............................................................5-7

Figure 5-7 BTS3900A with the heat exchanger ..................................................................................................5-8

Figure 5-8 BTS3900C (DC).................................................................................................................................5-9

Figure 5-9 BTS3900C (AC)...............................................................................................................................5-10

Figure 5-10 Indoor application of the multi-mode NodeB.................................................................................5-11

Figure 5-11 Outdoor application of the multi-mode NodeB .............................................................................5-11

Figure 7-1 Typical configurations of the BTS3900.............................................................................................7-2

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Figure 7-2 Typical configurations of the BTS3900A..........................................................................................7-3

Figure 8-1 Monitoring principles of the BTS3900...............................................................................................8-1

Figure 8-2 Monitoring principles of the BTS3900A............................................................................................8-2

Figure 8-3 Monitoring principles of the DBS3900..............................................................................................8-3

Figure 9-1 Star topology.......................................................................................................................................9-2

Figure 9-2 Chain topology................................................................................................................................... 9-3

Figure 9-3 Tree topology......................................................................................................................................9-3

Figure 9-4 IP hub topology.................................................................................................................................. 9-4

Figure 9-5 Typical topology between the BBU3900 and the RRUs....................................................................9-5

Figure 10-1 OM network of the NodeB.............................................................................................................10-2

Figures

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TablesTable 4-1 Board configuration of the BBU3900..................................................................................................4-4

Table 4-2 BBU3900 ports for serving the Iub interface.....................................................................................4-10

Table 4-3 Ports on the RRU3801C.....................................................................................................................4-14

Table 4-4 Ports on the RRU3804.......................................................................................................................4-15

Table 4-5 Ports on the WRFU/MRFU................................................................................................................4-19

Table 4-6 Functions of the PS4890....................................................................................................................4-23

Table 4-7 Functions of the power cabinet..........................................................................................................4-26

Table 4-8 Functions of the APM30H.................................................................................................................4-28

Table 7-1 Typical configurations of the BTS3900...............................................................................................7-2

Table 7-2 Typical configurations of the BTS3900A............................................................................................7-3

Table 7-3 Typical configurations of the DBS3900 (with RRU3804)..................................................................7-4

Table 7-4 Typical configurations of the DBS3900 (with RRU3801C)................................................................7-4

Table 12-1 Specifications of the BTS3900.........................................................................................................12-2

Table 12-2 Specifications of the BTS3900A......................................................................................................12-4Table 12-3 Specifications of the DBS3900 (BBU3900+RRU3801C)...............................................................12-7

Table 12-4 Specifications of the DBS3900 (BBU3900+RRU3804)................................................................12-12

Table 12-5 Specifications of the BTS3900C....................................................................................................12-20

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About This Document

PurposeThis document describes the NodeB products in terms of product positioning, software and

hardware structure, configuration type, signal flow, clock synchronization, and topology. Thisdocument also provides technical specifications of the NodeB, such as capacity, RF, engineering,

surge protection, and physical ports.

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

Product Name Product VersionBTS3900 WCDMA (hereinafter referred to

as BTS3900)

V200R010

BTS3900A WCDMA (hereinafter referred

to as BTS3900A)

V200R010

DBS3900 WCDMA (hereinafter referred to

as DBS3900)

V200R010

BBU3900 V200R010

Intended AudienceThis document is intended for:

l Network planners

l Field engineers

l System engineers

Change HistoryFor changes in the document, see 1 Changes in the NodeB Product Description.

Organization1 Changes in the NodeB Product Description

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This describes the changes in theNodeB Product Description.

2 Overview of NodeB Products

The NodeB products consist of three basic modules: BBU3900 (baseband processing unit),

WRFU/MRFU (RF module), and RRU (remote radio unit). Flexible combinations of the threebasic modules and auxiliary devices can provide comprehensive site solutions that are applicable

to specific installation scenarios.

3 Benefits of the NodeB

The NodeB has an industry-leading modular design of multiple modes and forms, rendering it

adaptive to various installation scenarios. This effectively addresses the requirements for the

broadband solution, green network construction, and a mobile network of converged multiple

modes. Beyond that, this enables the construction of a future-oriented network and smooth

evolution to the Long Term Evolution (LTE) system.

4 Hardware of the NodeB

The NodeB consists of three basic modules: BBU3900 (baseband processing unit), RRU (remote

radio unit), and WRFU/MRFU (RF module). Auxiliary devices of the NodeB include the indoor

macro cabinet, outdoor macro cabinet, and outdoor mini cabinet. Flexible combinations of the

three modules and auxiliary devices can provide comprehensive site solutions that are applicable

to different scenarios.

5 NodeB Products and Application Scenarios

The NodeB products consist of the outdoor distributed NodeB DBS3900, indoor macro NodeB

BTS3900, outdoor separated macro NodeB BTS3900A, outdoor mini NodeB BTS3900C, and

multi-mode NodeB.

6 Features of the NodeB

Featuring the cutting-edge modular design of multiple forms and modes, the NodeB provides

various advanced features and functions.

7 Typical Configurations of the NodeB

This describes the typical configurations of the BTS3900, BTS3900A, DBS3900.

8 Monitoring Principles of the NodeB

This describes the monitoring principles of the BTS3900, BTS3900A, and DBS3900.

9 Topologies of the NodeB

This describes the topologies of the NodeB, which consist of the topology on the Iub interface

and topology of the RRU.

10 Operation and Maintenance of the NodeB

The OM subsystem of the NodeB manages, monitors, and maintains the software, hardware,

and configuration of the NodeB. The OM subsystem also provides various OM modes and

multiple maintenance platforms to meet different maintenance requirements.

11 Reliability of the NodeB

The NodeB features a new system architecture and a complete redundancy design. In addition,

the NodeB takes advantage of Huawei large-capacity ASIC chips to enhance the integration ofmodules and to reduce the number of parts, thus significantly improving the system reliability.

About This Document

NodeB

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12 Specifications of the NodeB

This describes the specifications of the BTS3900, BTS3900A, DBS3900, and BTS3900C.

13 Compliance Standards of the NodeB

This describes the compliance standards of the NodeB. It complies with standards regarding

transportation, storage, anti-seismic performance, and Electromagnetic Compatibility (EMC).

ConventionsSymbol Conventions

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

Symbol DescriptionIndicates a hazard with a high level of risk, which if notavoided,will result in death or serious injury.

Indicates a hazard with a medium or low level of risk, which

if not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation, 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 DescriptionTimes 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 userroot.

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.

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Convention DescriptionBoldface 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 byvertical bars. Several items or no item can be selected.

GUI Conventions

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

Convention DescriptionBoldface Buttons, menus, parameters, tabs, window, and dialog titles

are in boldface. For example, clickOK.

> 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 DescriptionKey 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.

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NodeB

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Action DescriptionClick Select and release the primary mouse button without moving

the pointer.

Double-click Press the primary mouse button twice continuously andquickly without moving the pointer.

Drag Press and hold the primary mouse button and move the

pointer to a certain position.

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1 Changes in the NodeB Product DescriptionThis describes the changes in theNodeB Product Description.

02 (2008-10-30)This is the first commercial release.

Compared with 01 (2008-07-30), this issue includes the following new topics:

Topic Change Description4.4.2 PS4890 The description of the PS4890 is added.

4.4.3.3 APM30H The description of the APM30H is added.

4.3 WRFU/MRFU The description of the MRFU is added.

Compared with 01 (2008-07-30), this issue incorporates the following changes:

Topic Change Description4.1.5 Ports on the BBU3900 The physical port of the UTRP is changed.

12 Specifications of the NodeB The specifications of the NodeB are changed.

01 (2008-07-30)This is the field trial release.

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2 Overview of NodeB ProductsThe NodeB products consist of three basic modules: BBU3900 (baseband processing unit),

WRFU/MRFU (RF module), and RRU (remote radio unit). Flexible combinations of the three

basic modules and auxiliary devices can provide comprehensive site solutions that are applicable

to specific installation scenarios.

Figure 2-1 shows the basic modules and auxiliary devices of the NodeB.

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Figure 2-1 Basic modules and auxiliary devices of the NodeB

Diverse combinations of the basic modules and auxiliary devices form the following products

to apply to different scenarios, as shown in Figure 2-2, thus meeting requirements for fast and

cost-effective network deployment.


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Figure 2-2 Application scenarios of the NodeB products

Distributed NodeB

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l The distributed NodeB is applicable to the scenario of distributed installation of baseband

and RF modules.

l The distributed NodeB (DBS3900) consists of the BBU3900 and RRU.

l The BBU3900 can be installed in the APM30 or OMB (outdoor mini cabinet). The RRU

can be installed on the rooftop or tower. It is installed close to the antenna to reduce feederloss and improve NodeB performance.

Compact mini NodeB

l The compact mini NodeB (BTS3900C) is applicable indoors and outdoors.

l The compact mini NodeB can be installed on the pole, wall, or ground. When it is installed

on the ground, a stand or a support is required.

Cabinet macro NodeB

l The cabinet macro NodeB is applicable to a centralized installation scenario.

l

The cabinet macro NodeB is classified into two types: indoor BTS3900 and outdoorBTS3900A.

l The cabinet macro NodeB is installed with the BBU3900 and WRFUs/MRFUs in

centralized mode.

l The BTS3900 is recommended for an indoor centralized installation scenario, and the

BTS3900A is recommended for an outdoor centralized installation scenario.


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3 Benefits of the NodeBThe NodeB has an industry-leading modular design of multiple modes and forms, rendering it

adaptive to various installation scenarios. This effectively addresses the requirements for the

broadband solution, green network construction, and a mobile network of converged multiple

modes. Beyond that, this enables the construction of a future-oriented network and smooth

evolution to the Long Term Evolution (LTE) system.

Solution Integrating Multiple Technologiesl With the unified platform, modular design, and flexible combination of the basic modules

and auxiliary devices, the NodeB can be presented in multiple forms.

l With this solution, BBUs and RF modules of different modes (GSM/UMTS/LTE) can be

placed in one cabinet, and cabinets of different modes can be installed in stack mode.

l The UMTS RF module supports smooth evolution to the LTE system from the perspectiveof hardware and supports the UMTS/LTE dual-mode NodeB through software upgrade in

the same frequency band.

Broadband Solutionl The outstanding performance of the RRU3804 and WRFU/MRFU ensures wide coverage,

high throughput, and less sites.

The RRU3804 and WRFU/MRFU adopt a multi-carrier technology that features 20

MHz bandwidth and 4-carrier configuration.

A single RRU3804 supports the 60 W output power at the antenna connector, and a

single WRFU/MRFU supports 80 W at the antenna connector.

l The NodeB supports the High Speed Packet Access (HSPA) at full rate.

The HSPA service enjoys high bandwidth and short delay.

The data rate of the HSPA service can peak at 14.4 Mbit/s in the downlink.

The data rate of the HSPA service can peak at 5.76 Mbit/s at the physical layer of the

Uu interface in the uplink.

l The IP-based switching core of the NodeB allows operators to obtain higher bandwidth

and facilitates capacity expansion and network adjustment by utilizing the existing IP

transmission resources, thereby curtailing the cost of network deployment.

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The NodeB can provide the Fast Ethernet (FE) port at 100 Mbit/s externally, and the IP

Radio Access Network (RAN) can reuse the existing IP transmission resources on the

Iub interface.

Apart from being more cost-effective than the Asynchronous Transfer Mode (ATM)-

based network, the IP-based network provides the multi-access mode and sufficienttransmission bandwidth to satisfy data services with high data rate.

Construction of a Green NetworkThe compact and modular design, innovative PA, and power consumption management are the

keys to a green communication network that provides energy saving features and requires fewer

equipment rooms.

l The RF modules of the NodeB adopt the advanced Digital Pre-Distortion (DPD) and A-

Doherty technologies to raise the power amplification rate to 40%. Thus, the power

consumption of the entire NodeB is lowered.

l The reduced power consumption of the cabinet macro NodeB lowers not only the electricity

expense but also the investment in power supply, backup batteries, air conditioners, and

heat exchangers.

As one of the most compact macro NodeBs in the industry, the cabinet macro NodeB

takes up a small footprint.

The RF cabinet of the BTS3900A uses the direct-ventilation design. In comparison with

the traditional macro NodeB, power consumption of the BTS3900A is lowered by 40%.

l The DBS3900 is characterized by separate baseband and RF modules and distributed

installation that facilitate transportation, configuration, and installation.

The BBU3900 of the distributed NodeB is characterized by the small footprint, easy

installation, and low power consumption. In addition, the BBU3900 can be placed in

the spare space of an existing site.

The RRU, small and light, supports installation near the antenna, thus preventing feeder

loss. Working in natural heat dissipation mode, the RRU does not require any fans. The

high reliability of the RRU reduces the routine maintenance cost.

l All the NodeB products can share the baseband modules, RF modules, and power systems,

thereby reducing the cost of spare parts and maintenance.

The proceeding features of the NodeB can fully address the concern of operators regarding site

acquisition, expedite network rollout, decrease utilization of resources such as manpower, power

supply, and space, and lower the Total Cost of Ownership (TCO).

Smooth Evolution to the Future-Oriented Radio NetworkThe NodeB, adopting the unified modular design, satisfies the requirements of global operators

for service upgrade, network evolution, and deployment of new radio technologies, thus

implementing a future-oriented network.

l The NodeB supports co-cabinet and multi-mode applications of modules in different

modes.

l The hardware of UMTS RF modules supports HSPA+ and smooth evolution to the LTE

system. In addition, the BBU of the existing NodeB can be shared to the maximum extent.

3 Benefits of the NodeB

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4 Hardware of the NodeBAbout This Chapter

The NodeB consists of three basic modules: BBU3900 (baseband processing unit), RRU (remote

radio unit), and WRFU/MRFU (RF module). Auxiliary devices of the NodeB include the indoor

macro cabinet, outdoor macro cabinet, and outdoor mini cabinet. Flexible combinations of the

three modules and auxiliary devices can provide comprehensive site solutions that are applicable

to different scenarios.

4.1 BBU3900

This describes the BBU3900 in terms of the appearance, functions, logical structure, and ports.

4.2 RRU

This describes the RRU in terms of the appearance, functions, logical structure, and ports.

4.3 WRFU/MRFU

This describes the WRFU/MRFU in terms of the appearance, functions, logical structure, and

ports.

4.4 Auxiliary Devices of the NodeB

This describes the auxiliary devices of the NodeB. The auxiliary devices of the NodeB include

the indoor macro cabinet, indoor power cabinet (PS4890), outdoor macro cabinets (including

the RF cabinet, APM30, and APM30H), and outdoor mini cabinet.

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4.1 BBU3900This describes the BBU3900 in terms of the appearance, functions, logical structure, and ports.

4.1.1 Appearance of the BBU3900

The BBU3900, which features a case structure, is 19 inches wide and 2 U high.

4.1.2 Functions of the BBU3900

The BBU3900 is a baseband processing unit that provides the interface for connection between

the NodeB and the RNC.

4.1.3 Boards of the BBU3900

This describes the board configurations and functions of the BBU3900.

4.1.4 Logical Structure of the BBU3900

The BBU3900, which features a modular design, consists of the transport subsystem, basebandsubsystem, control subsystem, and power module.

4.1.5 Ports on the BBU3900

This describes the ports on the mandatory and optional boards of the BBU3900.

4.1.1 Appearance of the BBU3900The BBU3900, which features a case structure, is 19 inches wide and 2 U high.

Due to its miniaturized design, the BBU3900 can be installed in any 19-inch-wide and 2 U-high

indoor space or outdoor protective cabinet. Figure 4-1 shows the BBU3900.

Figure 4-1 BBU3900

The BBU3900 is the main control module, providing functions such as baseband processing and

transmission. It supports diverse configurations from 1 x 1 to 6 x 4 or 3 x 8.

4.1.2 Functions of the BBU3900The BBU3900 is a baseband processing unit that provides the interface for connection between

the NodeB and the RNC.

The BBU3900 has the following functions:

l Providing ports for data communication between the NodeB and the RNC


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l Providing CPRI ports for communication between the NodeB and the RRU/WRFU/MRFU

l Providing USB ports. During software installation and data configuration, NodeB software

upgrade is automatically performed after a USB disk is connected to a USB port on the

BBU3900.

l Providing an OM channel between the NodeB and the LMT or the M2000 to operate andmaintain the NodeB

l Processing uplink and downlink data

l Managing the entire NodeB system in terms of OM and signaling processing

l Providing the reference clock

4.1.3 Boards of the BBU3900This describes the board configurations and functions of the BBU3900.

4.1.3.1 Board Configuration of the BBU3900

This describes the board configuration of the BBU3900.

4.1.3.2 Functions of the BBU3900 Boards

This describes the functions of the WMPT, WBBP, UPEU, UEIU, UTRP, UELP, and UFLP.

Board Configuration of the BBU3900This describes the board configuration of the BBU3900.

Slots of the BBU3900Figure 4-2 shows the slots of the BBU3900.

Figure 4-2 Slots of the BBU3900

Board Configuration of the BBU3900Table 4-1 describes the board configuration of the BBU3900.

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Table 4-1 Board configuration of the BBU3900

Board Mandatory/Optional MaximumConfiguredNumberInstallationSlot Requirements

WMPT Mandatory 2 Slot 6 or 7 A single WMPT

is preferentially

configured in

Slot 7.

WBBP Mandatory 4 Slots 0 to 3 The WBBP is

preferentially

configured in

Slot 3, then Slot

2, at last Slot

0,1.

UBF Mandatory 1 FAN The UBF can be

configured only

in the FAN slot.

UPEU Mandatory 2 PWR1 or PWR2 A single UPEU

is preferentially

configured in

PWR2.

UEIU Optional 1 PWR1 or PWR2 The UEIU is

preferentially

configured in

PWR1.

UTRP Optional 5 Slots 0 to 5 The UTRP is

preferentially

configured in

Slot 4 and Slot 5


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Board Mandatory/Optional MaximumConfiguredNumberInstallationSlot Requirements

UELP Optional 2 Slot 0 or 4 When the

number of E1s is

less than four,

one UELP is

required and

installed in Slot

4. When the

number of E1s is

greater than four

and less than

eight, two

UELPs are

required andinstalled in Slots

0 and 4. When

the number of

E1s is greater

than eight, the

SLPU is

required and the

UELP is

installed inside

the SLPU.

UFLP Optional 2 Slot 0 or 4 The UFLP ispreferentially

installed in Slot

4.

Figure 4-3 shows the typical configuration of the BBU3900.

Figure 4-3 Typical configuration of the BBU3900

Functions of the BBU3900 BoardsThis describes the functions of the WMPT, WBBP, UPEU, UEIU, UTRP, UELP, and UFLP.

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Functions of the WMPTThe WMPT is mandatory for the BBU3900 and one BBU3900 holds up to two WMPTs for

backup. The WMPT has the following functions:

l Providing OM functions such as configuration management, equipment management,performance monitoring, signaling processing, and active/standby switchover, and

providing the OM channel for connection to the OMC (LMT or M2000)

l Providing the reference clock

l Processing signaling and managing resources for other boards in the BBU3900

l Providing USB ports. During software installation and data configuration, software upgrade

of the NodeB is automatically performed after a USB disk is connected to a USB port on

the BBU3900.

l Providing four E1s, which support ATM and IP protocols

l Providing one FE electrical port and one FE optical port, which support the IP protocol

l Supporting cold backup

Functions of the WBBPThe WBBP is mandatory for the BBU3900. In terms of hardware, one BBU3900 holds up to six

WBBPs. In terms of software, four WBBPs configured in the left four slots are supported by the

versions earlier than the RAN12. Based on the processing capability, the WBBP can be

categorized into five types. The WBBP has the following functions:

l Providing CPRI ports for communication between the BBU and the RRU/WRFU/MRFU

and supporting CPRI ports in 1+1 backup mode

l Processing uplink and downlink baseband signals

Functions of the UPEUThe UPEU has the following functions:

l Converting -48 V or +24 V DC power input into working power for the boards

l Providing two ports with each transmitting one RS485 signal and another two ports with

each transmitting four dry contact signals

l Preventing inverse connection

Functions of the UEIUThe UEIU has the following functions:

l Providing two ports with each transmitting one RS485 signal

l Providing two ports with each transmitting four dry contact signals

Functions of the UTRPThe UTRP supports cold backup. It has three types of sub-boards, as described in 4.1.5 Ports

on the BBU3900.

Functions of the UELPThe UELP provides surge protection for four E1s/T1s.


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Functions of the UFLPThe UFLP provides surge protection for two FEs.

4.1.4 Logical Structure of the BBU3900The BBU3900, which features a modular design, consists of the transport subsystem, baseband

subsystem, control subsystem, and power module.

Figure 4-4 shows the logical structure of the BBU3900.

Figure 4-4 Logical structure of the BBU3900

Transport SubsystemThe transport subsystem has the following functions:

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

l Providing OM channels between the BBU3900 and the OMC (LMT or M2000) for

operation and maintenance

Baseband SubsystemThe baseband subsystem processes uplink and downlink baseband data. The functions of the

baseband subsystem are performed by the following modules:

l Uplink baseband data processing module: Consists of the demodulation unit and the

decoding unit. In this module, uplink baseband data is processed into despreading soft

decision symbols after access channel searching, access channel demodulation, and

dedicated channel demodulation. The symbols are then sent to the RNC through the

transport subsystem after decoding and Frame Protocol (FP) processing.

l Downlink baseband data processing module: Consists of the modulation unit and the coding

unit. The module receives the service data from the transport subsystem and sends the

service data to the FP processor for FP processing. The signals are finally sent to the

interface module after encoding, transport channel mapping, physical channel generating,framing, spreading, modulation, and power control combination.

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In the baseband subsystem, the BBU3900 has an integrated CPRI interface module that connects

the BBU3900 to the RRU.

Control SubsystemThe control subsystem manages the entire NodeB. The subsystem performs OM, processes

signaling, and provides the system clock.

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 NodeB Application Part (NBAP) signaling

processing, Access Link Control Application Part (ALCAP) processing, Stream Control

Transmission Protocol (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, or

an external clock. The BBU3900 extracts the clock from the Iub interface and then provides

a system clock for the NodeB after frequency dividing, phase locking, and phase adjusting.

Power ModuleThe power module converts -48 V or +24 V DC power into the power required by the boards

and provides a port to connect to an external monitoring device.

4.1.5 Ports on the BBU3900This describes the ports on the mandatory and optional boards of the BBU3900.

Ports on the Mandatory Boards of the BBU3900Board Port Connector Quantity DescriptionWMPT E1 port DB26 1 One port

supports four

E1s.

FE electrical

port

RJ45 1 -

FE optical port SFP 1 -

USB port forloading

USB 1 Port for software

loading

USB port for

test

USB 1 Port for test

Commissioning

port

RJ45 1 Port for local

maintenance of

the NodeB

GPS port SMA 1 -

WBBP CPRI SFP 3 -


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Board Port Connector Quantity DescriptionUPEU PWR 3V3 1 Port for leading

in -48 V DC or

+24 V DC

power

MON0 RJ45 1 Providing two

RS485

monitoring

ports and

connecting to

external

monitoring

devices

MON1 RJ45 1

EXT-ALM0 RJ45 1 Providing eight

dry contactalarm inputs and

connecting to

external alarm

devices

EXT-ALM1

port

RJ45 1

Ports on the Optional Boards of the BBU3900Board Port Connector Quantity DescriptionUELP INSIDE DB25 1 Port for four E1/

T1 inputs

OUTSIDE DB26 1 Port for four E1/

T1 outputs

UFLP FE0 and FE1

(INSIDE)

RJ45 2 Connecting to

either the

WMPT or

UTRP

FE0 and FE1

(OUTSIDE)


external

devices. The

FE0(OUTSIDE)

connects to the

FE0 (INSIDE)

and the FE1

(OUTSIDE)

connects to the

FE1 (INSIDE).

USCU RGPS port DB8 3 Connecting to

the RGPS signal

cable

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Board Port Connector Quantity DescriptionBITS port SMA 1 Connecting to

the BITS clock

Clock test port SMA 1 Port for testingclock signal

output

Antenna port for

the satellite card

SMA 1 RF signal input

terminal of the

satellite card

UTRP E1/T1 port DB26 2 Providing eight

ATM over E1s

or eight IP over

E1s

STM-1/OC-3

port

SFP 1 Providing one

unchannelized

STM-1/OC-3

UEIU MON RJ45 1 Connecting to

external

monitoring

devices

MON1 port RJ45 1

EXT-ALM0

port


external alarm

devices

EXT-ALM1 RJ45 1

NOTEThe UEIU is a monitoring and dry contact extension board for the UPEU.

BBU3900 Ports for Serving the Iub InterfaceTable 4-2 BBU3900 ports for serving the Iub interface

Port Quantity Data Rate Standard PositionE1/T1 4 pairs T1: 1.544 Mbit/

s

E1: 2.048 Mbit/

s

ETS300 420

ITU G.703/G.

704

ANSI-G.703/G.

704

WMPT

FE electrical

port

1 PCS 100 Mbit/s IEEE 802.3 WMPT

FE optical port 1 PCS 100 Mbit/s IEEE 802.3 WMPT


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Port Quantity Data Rate Standard PositionE1/T1 8 pairs T1: 1.544 Mbit/

s

E1: 2.048 Mbit/s

ETS300 420

ITU G.703/704

ANSI-G.703/704

UTRP

STM-1/OC-3 1 PCS 155.52 Mbit/s CCITT I.432

RFC2615

UTRP

4.2 RRUThis describes the RRU in terms of the appearance, functions, logical structure, and ports.

4.2.1 Appearance of the RRUAccording to different processing capabilities, the RRU is classified into two types: the

RRU3801C and the RRU3804. The appearance of RRU contains appearance of RRU3801C and

RRU3804.

4.2.2 Functions of the RRU

The RRU is an outdoor remote radio unit.

4.2.3 Logical Structure of the RRU

The RRU, which features a modular design, consists of the interface module, transceiver (TRX),

Power Amplifier (PA), filter, Low Noise Amplifier (LNA), and power module.

4.2.4 Ports on the RRU

This describes the ports of the RRU. The ports of the RRU are located at the bottom of themodule and in the cabling cavity.

4.2.1 Appearance of the RRUAccording to different processing capabilities, the RRU is classified into two types: the

RRU3801C and the RRU3804. The appearance of RRU contains appearance of RRU3801C and

RRU3804.

4.2.1.1 Appearance of the RRU3801C

This describes the appearance of the RRU3801C that features a modular design.

4.2.1.2 Appearance of the RRUThis describes the appearance of the RRU that features a modular design.

Appearance of the RRU3801CThis describes the appearance of the RRU3801C that features a modular design.

Appearance of the RRU3801C is shown in Figure 4-5.

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Figure 4-5 Appearance of the RRU3801C

Appearance of the RRUThis describes the appearance of the RRU that features a modular design.

Appearance of the RRU is shown in Figure 4-6.

Figure 4-6 Appearance of the RRU

4.2.2 Functions of the RRUThe RRU is an outdoor remote radio unit.

The RRU has the following functions:

l Forwards and processes RF signals between the BBU3900 and the antenna system.

l Receives RF signals from the antenna system, down-converts the signals to IF signals, and

then transmits them to the BBU or the macro NodeB after amplification, analog-to-digital

conversion, digital down-conversion, matched filtering, and Digital Automatic GainControl (DAGC).


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l Receives downlink baseband signals from the BBU or the macro NodeB, forwards data

received from its cascaded RRU, performs filtering and digital-to-analog conversion, and

up-converts RF signals to the TX band.

l Multiplexes RX and TX signals over RF channels, which enables the RX signals and TX

signals to share the same antenna path. In addition, the RRU filters the RX signals and TXsignals.

4.2.3 Logical Structure of the RRUThe RRU, which features a modular design, consists of the interface module, transceiver (TRX),

Power Amplifier (PA), filter, Low Noise Amplifier (LNA), and power module.

Figure 4-7 shows the logical structure of the RRU.

Figure 4-7 Logical structure of the RRU

Interface ModuleThe functions of the interface module are as follows:

l Receiving downlink baseband data from the BBU

l Transmitting uplink baseband data to the BBU

l

Forwarding data from the cascaded RRUs

TRXThe TRX has two RX channels and one TX channel for RF signals.

l The RX channels perform the following functions:

Down-conversion of the received signals to IF signals

Amplification of the IF signals

Analog-to-digital conversion

Digital down-conversion

Matched filtering

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Digital Automatic Gain Control (DAGC)

l The TX channel performs the following functions:

Shaping and filtering of downlink spread spectrum signals

Digital-to-analog conversion Up-conversion of the IF signals to the TX band

PAThe PA adopts the DPD and A-Doherty technologies to amplify low-power RF signals from the

TRX.

FilterThe filters consist of a duplex filter and an RX filter. The filter performs the following functions:

l The duplex filter multiplexes one RX and one TX signals over RF channels so that they

can share one antenna channel. In addition, it filters RX and TX signals.

l The RX filter filters one RX signal.

LNAThe LNA amplifies the signals received from the antenna system.

Power ModuleThe power module supplies power to other modules of the RRU.

4.2.4 Ports on the RRUThis describes the ports of the RRU. The ports of the RRU are located at the bottom of the

module and in the cabling cavity.

The ports on the RRU are the power supply socket, transmission port, RF port, alarm port, and

other port.

Table 4-3 Ports on the RRU3801C

Port Connector Quantity Description+220 V AC or -48 V

DC power supply

socket

9-pin, round, and

waterproof

1 Power supply socket

Optical port ESFP socket 2 Transmission port

Main TX/RX port DIN, round, and

waterproof

1 RF port

RX diversity port DIN, round, and

waterproof

1


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Port Connector Quantity DescriptionPort for

interconnection

between combined

modules

2W2 1

Port for four dry

contact alarms

DB15 connector

(shared with the fan)

1 Alarm port

Port for the RET

antenna

DB9 1 Other port

Commissioning port RJ45 1

Table 4-4 Ports on the RRU3804

Port Connector Quantity Description-48 V DC power

supply socket

OT terminal 1 Power supply socket

Optical port ESFP socket 2 Transmission port

Main TX/RX port DIN, round, and

waterproof

1 RF port

RX diversity port DIN, round, and

waterproof

1

Port forinterconnection

between combined

modules

2W2 1

Port for two dry

contact alarms and

one RS485 signal

DB15 1 Alarm port

Port for the RET

antenna

DB9 1 Other port

NOTE

The RRU3804 supports the Antenna Interface Standard Group (AISG) 1.1 and 2.0 standard interface

protocols.

4.3 WRFU/MRFUThis describes the WRFU/MRFU in terms of the appearance, functions, logical structure, and

ports.

4.3.1 Appearance of the WRFU/MRFU

The WRFU/MRFU can be installed in an indoor cabinet or a protective outdoor cabinet.

4.3.2 Functions of the WRFU/MRFU

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The WRFU is the WCDMA RF filter unit, and the MRFU is the multi-carrier RF filter unit.

4.3.3 Logical Structure of the WRFU/MRFU

The WRFU/MRFU, which features a modular design, consists of the interface module,

transceiver (TRX), Power Amplifier (PA), filter, and Low Noise Amplifier (LNA).

4.3.4 Ports on the WRFU/MRFU

The external ports of the WRFU/MRFU are located at the bottom of the module and in the

cabling cavity.

4.3.1 Appearance of the WRFU/MRFUThe WRFU/MRFU can be installed in an indoor cabinet or a protective outdoor cabinet.

WRFUFigure 4-8 shows the WRFU.

Figure 4-8 WRFU


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MRFUFigure 4-9 shows the MRFU.

Figure 4-9 MRFU

4.3.2 Functions of the WRFU/MRFUThe WRFU is the WCDMA RF filter unit, and the MRFU is the multi-carrier RF filter unit.

The WRFU/MRFU performs the following functions:

l The WRFU/MRFU, which adopts the direct frequency conversion technology, modulates

the baseband signals to the WCDMA TX band. After filtering and amplification, the

baseband signals are transmitted to the antenna system through the duplex filter.

l The WRFU/MRFU receives uplink RF signals from the antenna system and then down-

converts the received signals to IF signals. After amplification, analog-to-digital

conversion, digital down-conversion, matched filtering, automatic gain control (AGC), theIF signals are sent to the BBU for further processing.

l Power control and Voltage Standing Wave Ratio (VSWR) detection

l Reverse power detection

l Frequency synthesis and loopback test

l Generation of the CPRI clock, recovery of the CPRI clock of lost synchronization, and

alarm detection

4.3.3 Logical Structure of the WRFU/MRFUThe WRFU/MRFU, which features a modular design, consists of the interface module,transceiver (TRX), Power Amplifier (PA), filter, and Low Noise Amplifier (LNA).

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Figure 4-10 shows the logical structure of the WRFU/MRFU.

Figure 4-10 Logical structure of the WRFU/MRFU

Interface ModuleThe functions of the interface module are as follows:

l Receiving downlink baseband data from the BBU

l Transmitting uplink baseband data to the BBU

l Forwarding the data sent from the cascaded WRFUs/MRFUs

TRXThe TRX provides two RX channels and one TX channel for RF signals.

l The RX channels perform the following functions:

Down-conversion of the received signals to IF signals

Amplification of the IF signals

Analog-to-digital conversion

Digital down-conversion

Matched filtering

Digital Automatic Gain Control (DAGC)

l The TX channel performs the following functions:

Shaping and filtering of downlink spread spectrum signals

Digital-to-analog conversion

Up-conversion of the IF signals to the TX band

PAThe PA adopts the DPD and A-Doherty technologies to amplify low-power RF signals from theTRX.


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FilterThe filters consist of a duplex filter and an RX filter. The filters perform the following functions:

l The duplex filter multiplexes one RX and one TX signals over RF channels so that they

can share one antenna channel. In addition, it filters RX and TX signals.

l The RX filter filters one RX signal.

LNAThe LNA amplifies the signals received from the antenna system.

4.3.4 Ports on the WRFU/MRFUThe external ports of the WRFU/MRFU are located at the bottom of the module and in the

cabling cavity.

The ports on the WRFU/MRFU are the power port, transmission ports, RF ports, and

commissioning port.

Table 4-5 Ports on the WRFU/MRFU

Port Type Connector Type Quantity Remarks-48 V DC power

input port

3V3 1 Power port

CPRI port SFP female 2 Transmission port

for BBU cascading

Interconnection port

for receiving RF

signals

QMA female 2 Transmission port

for WRFU/MRFU

cascading

Port for transceiving

antenna signals

DIN 2 RF port

Commissioning port RJ45 1 Reserved for fan

monitoring

4.4 Auxiliary Devices of the NodeBThis describes the auxiliary devices of the NodeB. The auxiliary devices of the NodeB include

the indoor macro cabinet, indoor power cabinet (PS4890), outdoor macro cabinets (including

the RF cabinet, APM30, and APM30H), and outdoor mini cabinet.

4.4.1 Indoor Macro Cabinet

This describes the indoor macro cabinet. The indoor macro cabinet performs functions such as

power distribution and surge protection for the BBU3900 and WRFUs/MRFUs.

4.4.2 PS4890

The PS4890, an indoor power cabinet, provides DC power and power backup for the DBS3900

or BTS3900. The PS4890 can also provide installation space for the indoor BBU andtransmission equipment.

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4.4.3 Outdoor Macro Cabinets

This describes the outdoor macro cabinets. The outdoor macro cabinets consist of the RF cabinet,

APM30, and APM30H. The APM30 consists of the APM30 power cabinet, APM30 battery

cabinet, and APM30 transmission cabinet. The APM30H consists of the APM30H power

cabinet, IBBS200T, and TMC11H.

4.4.4 Outdoor Mini Cabinet

The outdoor mini cabinet (OMB), used outdoors, provides functions such as power distribution

and surge protection for the BBU3900.

4.4.1 Indoor Macro CabinetThis describes the indoor macro cabinet. The indoor macro cabinet performs functions such as

power distribution and surge protection for the BBU3900 and WRFUs/MRFUs.

Features of the Indoor Macro CabinetAn indoor macro cabinet accommodates a maximum of six RF modules, thus meeting the

requirements for indoor centralized installation and fast network construction, saving installation

space, and facilitating smooth evolution.

The indoor macro cabinet has the following features:

l Capable of serving all modes of the BTS3900 (GSM, UMTS, CDMA, and LTE)

l Small size

l Small footprint

l Two cabinets in stack installation mode

Structure of the Indoor Macro CabinetThe indoor macro cabinet supports three types of power input: -48 V DC, +24 V DC, and 220

V AC. If configured with suitable power modules, the cabinet can convert +24 V DC or 220 V

AC power into -48 V DC power for the BBU3900 and WRFUs/MRFUs.

NOTE

In stack installation mode, the upper cabinet should be a -48 V DC cabinet, and the lower cabinet can be

either a +24 V DC cabinet or a 220 V AC cabinet, depending on power configuration.

The cabinet structure varies with the power input. Figure 4-11 shows the -48 V DC single indoor

cabinet. Figure 4-12 shows the +24 V DC single indoor cabinet. Figure 4-13 shows the 220 V

AC single indoor cabinet.


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Figure 4-11 Single indoor cabinet (-48 V DC)

Figure 4-12 Single indoor cabinet (+24 V DC)

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Figure 4-13 Single indoor cabinet (220 V AC)

4.4.2 PS4890The PS4890, an indoor power cabinet, provides DC power and power backup for the DBS3900

or BTS3900. The PS4890 can also provide installation space for the indoor BBU and

transmission equipment.

Functions of the PS4890Table 4-6 describes the functions of the PS4890.


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Table 4-6 Functions of the PS4890

Item DescriptionInstallation space for customer equipment Provides a 7 U to 13 U installation space for

customer equipment.l PS4890 not equipped with built-in

batteries: provides a space of 13 U for

installing customer equipment.

l PS4890 equipped with 48 V 50 Ah built-

in batteries: provides a space of 7 U for



in batteries: provides a space of 7 U for



in batteries: provides no installation space

for customer equipment.

Power backup l Supports two types of battery group: 48 V

50 Ah and 48 V 92 Ah.

l Two 48 V 92 Ah battery groups can be

connected parallely to provide 48 V 184

Ah backup power.

PSU l Converts the input AC mains into -48 V

DC power.

l The PSU is hot-swappable.

PMU l Manages the PSUs and the charge or

discharge of the batteries.

l Provides RS485 communication ports and

dry contact alarm ports for remote and

unattended monitoring.

l Supports the battery low voltage

disconnect (BLVD) and load low voltage

disconnect (LLVD) functions.

l The PMU is hot-swappable.

Surge protection for the power and signalports

There are surge protection modules for theAC/DC power ports, and surge protection

circuits designed for the dry contact alarm

ports and communication ports. In this way,

reliable surge protection and inductive

lightning protection are provided.

Structure of the PS4890Figure 4-14 shows the internal structure of the PS4890, when the PS4890 is installed with the

built-in 48 V 50 Ah or 48 V 184 Ah battery group.

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Figure 4-14 Internal structure of the PS4890

(1) Power system (with the PSU and

PMU)

(2) DCDU-04 (3) DCDU-03

(4) Wiring copper bar for the

negative poles of the batteries

(5) Support plate of the battery group (6) Baffle plate of the battery group

(7) Wiring copper bar for the

positive poles of the batteries

When the PS4890 is installed with the 48 V 50 Ah, 48 V 92 Ah, or 48 V 184 Ah battery group,

l The power system converts AC power into -48 V DC power, and after power distribution,

it provides three DC outputs for the battery group, DCDU-04, and DCDU-03.

l The DCDU-04 provides two DC outputs for the BTS3900 cabinet or NodeBs of other

models.

l The DCDU-03 provides nine DC outputs for transmission equipment.

4.4.3 Outdoor Macro CabinetsThis describes the outdoor macro cabinets. The outdoor macro cabinets consist of the RF cabinet,

APM30, and APM30H. The APM30 consists of the APM30 power cabinet, APM30 battery

cabinet, and APM30 transmission cabinet. The APM30H consists of the APM30H powercabinet, IBBS200T, and TMC11H.


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4.4.3.1 RF Cabinet

The RF cabinet, used outdoors, works in direct-ventilation mode for heat dissipation. The

APM30 cabinet is stacked on the RF cabinet, and the two cabinets provide power supply, surge

protection, and other protection for the BBU3900 and WRFUs/MRFUs.

4.4.3.2 APM30

This describes the advanced power module APM30. The APM30 is a power backup system for

outdoor applications. It provides distributed NodeBs, outdoor macro NodeBs, and mini NodeBs

with -48 V DC power and backup batteries. It also provides space for the installation of the

BBU3900 and customer equipment to facilitate fast network deployment.

4.4.3.3 APM30H

The advanced power module (with the heat exchanger) APM30H is a power backup system for

outdoor applications. It provides distributed NodeBs and separated NodeBs with DC power and

backup power. It also provides space for installing the BBU and transmission equipment

outdoors.

RF CabinetThe RF cabinet, used outdoors, works in direct-ventilation mode for heat dissipation. The

APM30 cabinet is stacked on the RF cabinet, and the two cabinets provide power supply, surge

protection, and other protection for the BBU3900 and WRFUs/MRFUs.

The RF cabinet has the following configuration modes:

The RF cabinet accommodates three WRFUs/MRFUs, and the spare space is reserved for 50

Ah or 100 Ah batteries, as shown in Figure 4-15.

Figure 4-15 RF cabinet with three WRFUs/MRFUs and the batteries

The RF cabinet can accommodate a maximum of six WRFUs/MRFUs, as shown in Figure

4-16.

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Figure 4-16 RF cabinet with six WRFUs/MRFUs

APM30This describes the advanced power module APM30. The APM30 is a power backup system for

outdoor applications. It provides distributed NodeBs, outdoor macro NodeBs, and mini NodeBs

with -48 V DC power and backup batteries. It also provides space for the installation of the

BBU3900 and customer equipment to facilitate fast network deployment.

Functions of the APM30Table 4-7 describes the functions of the APM30.

Table 4-7 Functions of the power cabinet

Item DescriptionInstallation space for

customer equipment

A power cabinet provides a 5 U to 7 U space for customer

equipment.

l If the power cabinet has no built-in batteries, the power cabinet

provides a 7 U space for customer equipment.

l If the power cabinet accommodates -48 V 24 Ah battery groups,

the cabinet provides a 5 U space for customer equipment.

Power backup l A power cabinet can house two -48 V 12 Ah battery groups,

which equals a -48 V 24 Ah battery group. The battery group

supplies power to the distributed NodeB for a short period of

time.

l When connected to an external battery cabinet, the power cabinet

can supply power of up to -48 V 184 Ah.

Built-in PSUs l The PSUs convert the input AC mains into -48 V DC power.



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Item DescriptionBuilt-in PMU l Manages the PSUs and the charge or discharge of the batteries.

l Provides RS485 communication ports and dry contact alarm

ports for remote and unattended monitoring.l Supports the battery low voltage disconnect (BLVD) and load

low voltage disconnect (LLVD) functions.


AC/DC power

distribution

Provides AC/DC power distribution.

Surge protection for

the power and signal

ports

There are surge protection modules for the AC/DC power ports, and

surge protection circuits designed for the dry contact alarm ports

and communication ports. In this way, reliable surge protection and

inductive lightning protection are provided.

Heat dissipation The breathable film and fans in the APM30 work together for heat

dissipation. Therefore, the APM30 is adaptable to the variation of

ambient temperature.

Grounding The PGND cables of the cabinet, surge protector, and other devices

are all connected to the grounding bar of the cabinet.

Structure of the APM30Figure 4-17 shows the structure of the APM30 without batteries.

Figure 4-17 Structure of the APM30 without batteries

(1) Heater (1 U) (2) PDU (2 U) (3) Power subrack (3 U)

(4) APMI (5) Fan (6) AFMU

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For the APM30 without batteries,

l If it is not installed with a heater, the APM30 provides a 7 U space for customer equipment.

l If it is installed with a heater, the heater occupies 1 U of the space for customer equipment.

l The 1 U space at the top of the cabinet is reserved for replacing the APMI, AFMU, or fans.

APM30HThe advanced power module (with the heat exchanger) APM30H is a power backup system for

outdoor applications. It provides distributed NodeBs and separated NodeBs with DC power and

backup power. It also provides space for installing the BBU and transmission equipment

outdoors.

Functions of the APM30HTable 4-8 describes the functions of the APM30H.

Table 4-8 Functions of the APM30H

Item DescriptionInstallation space for

customer equipment

Provides a space of 7 U for installing customer equipment.

Power backup Supports a maximum of -48 V 184 Ah battery group when the

APM30H is connected to the external battery cabinet.

Built-in PSUs l Converts the input AC mains into -48 V DC power.


Built-in PMU l Manages the PSUs and the charge or discharge of the batteries.

l Provides RS485 communication ports and dry contact alarm

ports for remote and unattended monitoring.

l Supports the battery low voltage disconnect (BLVD) and load

low voltage disconnect (LLVD) functions.


AC/DC powerdistribution

Provides AC/DC power distribution.

Surge protection for

the power and signal

ports

There are surge protection modules for the AC/DC power ports, and

surge protection circuits designed for the dry contact alarm ports

and communication ports. In this way, reliable surge protection and

inductive lightning protection are provided.

Grounding The PGND cables of the cabinet, surge protector, and other devices

are all connected to the grounding bar of the cabinet.

Heat dissipation The APM30H dissipates the heat by using the core of the heat

exchanger and inner and outer air circulation fans, featuring

excellent heat dissipation.


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Item DescriptionEnvironment

adaptability

The APM30H is dustproof, adaptive to the adverse environment. It

can also work with the diesel generator.

Structure of the APM30HFigure 4-18 shows the internal structure of the APM30H.

Figure 4-18 Internal structure of the APM30H

(1) HPMI (2) Fan (inner air circulation) (3) HEUA

(4) Power system (AC/DC) (5) PDU (6) Fan (outer air circulation)

(7) Core of the heat exchanger

For the APM30H,

l If it is not installed with a heater, the APM30H provides a 7 U space for customer equipment.

l If it is installed with a heater, the heater occupies 1 U of the space for customer equipment.

l The 1 U space at the top of the cabinet is reserved for replacing the HPMI, HEUA, or fans.

4.4.4 Outdoor Mini CabinetThe outdoor mini cabinet (OMB), used outdoors, provides functions such as power distribution

and surge protection for the BBU3900.

The BBU3900 can be installed in an OMB to form an outdoor BBU, thus fulfilling the outdoorapplication of the compact mini NodeB.

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The OMB has a built-in heat exchanger. If the AC power is used, the cabinet must be configured

with an EPS30-4815A power module and an SPD (AC); if the DC power is used, the cabinet

must be configured with a DC power distribution box, as shown in Figure 4-19.

Figure 4-19 Internal structure of the OMB


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5 NodeB Products and Application ScenariosAbout This Chapter

The NodeB products consist of the outdoor distributed NodeB DBS3900, indoor macro NodeB

BTS3900, outdoor separated macro NodeB BTS3900A, outdoor mini NodeB BTS3900C, and

multi-mode NodeB.

5.1 OutdoorDistributed NodeB DBS3900

The outdoordistributed NodeB DBS3900 fully addresses operators' concern over site selection

and facilitates network planning and optimization. The DBS3900 enables operators to efficiently

deploy a high-performance 3G network with a low TCO by minimizing the investment required

in electricity, space resource and decreasing the occupation of labor.

5.2 Indoor Macro NodeB BTS3900

The indoor macro NodeB BTS3900 is installed in indoor scenarios, such as for centralized

installation and for swapping of the traditional macro NodeB.

5.3 OutdoorSeparated Macro NodeB BTS3900A

The outdoorseparated macro NodeB BTS3900A is installed in outdoor scenarios, such as for

centralized installation and for swapping of the traditional macro NodeB.

5.4 Outdoor Mini NodeB BTS3900C

The outdoor mini NodeB BTS3900C applies to new outdoor 3G sites, edge networks, and blind

spots such as tunnels, hot spots, and places where no equipment room exists.

5.5 Multi-Mode NodeB

The NodeBs feature a unified platform and a modular design. Therefore, co-siting of modules

in GSM, UMTS, or LTE mode can be supported, the baseband processing units and RF modules

can share the same hardware platform, and modules in different modes can be located in one

cabinet to support multi-mode application. This helps implement smooth evolution from GSM

to UMTS, and then to LTE.

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5.1 Outdoor Distributed NodeB DBS3900The outdoor distributed NodeB DBS3900 fully addresses operators' concern over site selection

and facilitates network planning and optimization. The DBS3900 enables operators to efficiently

deploy a high-performance 3G network with a low TCO by minimizing the investment required

in electricity, space resource and decreasing the occupation of labor.

With the continuous capacity expansion of the mobile network, site selection for the NodeB has

turned into a bottleneck in the network construction phase. Solutions to this problem, such as

the 2G/3G co-siting or site reselection, become increasingly difficult to implement and require

additional investment.

The baseband processing unit BBU3900 of the distributed NodeB is characterized by a small

footprint, easy installation, and low power consumption. Thus, it is convenient for the BBU to

be installed in the spare space of an existing site. The RRU also has a compact design and light

weight, and it can be installed close to the antenna to decrease feeder loss and improve systemcoverage.

The distributed NodeB has flexible applications to meet the requirement of fast network

construction in different scenarios.

Integrated Application with BBU3900 + RRU + APMFor a new 3G site, if only the AC power is supplied and backup power is required, the application

scenario of BBU3900 + RRU + APM can be used to substitute for the outdoor macro NodeB.

Figure 5-1 shows the typical configuration of the BBU3900 + RRU + APM. The details are as

follows:

l The BBU3900 and the transmission device can be installed in the APM, and the RRU can

be installed on a metal pole close to the antenna.

l The APM offers installation space and outdoor protection to the BBU3900, supplies -48 V

DC power to the BBU3900 and RRU, and provides functions such as battery management,

monitoring, and surge protection.

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Figure 5-1 Integrated application with BBU3900 + RRU + APM

Embedded Application with Existing Site EquipmentFor a site that is shared with the 2G network, the BBU3900 can be installed in any standard 19-

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