Huawei RAN12.0 DBS3800 Caractéristiques techniques

RAN12.0 DBS3800 Product Description

Issue

V1.0

Date 2009-11-27

HUAWEI TECHNOLOGIES CO., LTD.

Huawei Proprietary and Confidential

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Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

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DBS3800 Product Description

Issue V0.1 (2009-11-27) Huawei Proprietary and Confidential

Contents

1 Introduction....................................................................................................................................4

1.1 Positioning .......................................................................................................................................................4

1.2 Benefits ............................................................................................................................................................5

2 Architecture....................................................................................................................................6

2.1 Overview..........................................................................................................................................................6

2.2 Hardware Architecture ..................................................................................................................................... 6

2.3 Auxiliary Devices...........................................................................................................................................17

3 Products and Application Scenarios .......................................................................................19

3.1 Overview........................................................................................................................................................19

3.2 Application Scenarios..................................................................................................................................... 19

4 Technical Specification..............................................................................................................24

5 Acrony s and Abbreviations...................................................................................................37

DBS3800 Product Description

Issue V0.1 (2009-11-27) Huawei Proprietary and Confidential

Introduction

1.1 Positioning

With the rise in consciousness towards protecting the environment and the increase in lease

cost, site acquisition for base stations has become a challenge during network deployment,

rendering it increasingly difficult for operators to deploy new sites.

The distributed NodeB (DBS3800) features high integration, easy installation, and low power

consumption. All these features facilitate site selection and 2G/3G co-siting.

The DBS3800 is a distributed NodeB system developed in compliance with the protocols of

3GPP R99/R4/R5/R6/R7/R8 FDD.

The DBS3800 uses the Remote Radio Head (RRH) technology, which separates the baseband

unit (BBU) from the remote radio unit (RRU) in a traditional base station, thus implementing

separate installation, capacity expansion, and evolution for these two modules.

The BBU and the RRU are connected with optical cables through the Common Public Radio

Interface (CPRI). This facilitates site acquisition, equipment room deployment, and device

transportation and installation.

Figure 1-1 shows the components of the DBS3800.

DBS3800 Product Description

Issue V0.1 (2009-11-27) Huawei Proprietary and Confidential

Figure 1-1 Components of the DBS3800

1.2 Benefits

Si ple Structure, Easy Site Selection, and Flexible Co bination

The DBS3800 has two types of basic modules (BBU and RRU), which reduces dependence

on additional spare parts and lowers the maintenance cost. The BBU and the RRU can be

configured flexibly to meet different requirements of operators.

S ooth Evolution

In an effort to address the requirements of operators for network deployment in different

phases, the DBS3800 can be configured with boards and modules of different processing

capabilities to support future capacity expansion and smooth evolution.

In the RAN12.0 version, the Enhanced Baseband Card (EBBCd) is added and supports

evolution to HSPA+ Phase 2.

Strong Environ ent Adaptability and Convenient Site Deploy ent

The functional modules of the DBS3800 provide small size, lightweight, and strong

environment adaptability.

The BBU can be installed in the free space of an existing site; whereas the RRU can be easily

installed on a metal pole, wall, or stand. Before delivery, all the software is installed, and all

the hardware is assembled and commissioned.

Field engineers only need to install the related modules and connect the external cables. After

the data configuration is downloaded locally or remotely, the NodeB begins to operate

normally.

DBS3800 Product Description

Issue V0.1 (2009-11-27) Huawei Proprietary and Confidential

Architecture

2.1 Overview

The DBS3800 has a modular design. It consists of the BBU3806/BBU3806C and the

RRU3801C/RRU3804/RRU3801E/RRU3808.

The power and number of carriers of each RRU are different. The RRU3808 supports 2T2R,

but other types of RRUs support 1T2R.

The DBS3800 supports the maximum configuration of 3 x 4 or 6 x 2.

N x M = sector x carrier, for example, 3 x 1 configuration indicates that each of the three sectors has one

carrier.

2.2 Hardware Architecture

2.2.1 BBU3806

The BBU3806 is a baseband unit.

The BBU3806 implements the following functions:

Transmitting signals between the NodeB and the RNC

Providing the reference clock

Managing the entire NodeB in a centralized manner in terms of OM and signaling

processing

Providing an OM channel for connection to the LMT or M2000

The BBU3806 has a case structure with all external ports on the front panel.

Figure 2-1 shows the BBU3806.

DBS3800 Product Description

Issue V0.1 (2009-11-27) Huawei Proprietary and Confidential

Figure 2-1 BBU3806

The BBU3806 has two grounding screws on the front panel.

Table 2-1 lists the ports on the BBU3806.

Table 2-1 Ports on the BBU3806

Label Re arks

PWR Power supply socket for feeding external power

E1/T1/J1

FE0

FE1

Iub interface for transmitting baseband signals between the BBU3806

and the RNC

CPRI0

CPRI1

CPRI2

Optical ports between the BBU3806 and the RRU

EIa Ports for connecting active and standby BBU3806s

EIb Reserved

EXT_ALM Port for four dry contact alarms

RS485 Port for RS485 alarm reporting

GPS Port for GPS signal inputs

BITS Port for BITS signal inputs

10M Port for 10 MHz signal outputs

8K/TTI 8 kHz Transmission Time Interval (TTI) test port

ETH_RS232 Commissioning port

ESD Port for connecting to the ESD wrist strap

RST Reset button

An extension plugboard can be installed on the BBU3806, as shown in Figure 2-2.

DBS3800 Product Description

Issue V0.1 (2009-11-27) Huawei Proprietary and Confidential

Figure 2-2 Installing an extension plugboard on the BBU3806

The BBU3806 supports the following extension plugboards:

EBBC

The Enhanced Base Band Card (EBBC) provides extension services for the baseband

resources of the BBU3806. The EBBC supports HSUPA phase 2.

Figure 2-3 shows the EBBC.

Figure 2-3 EBBC

Table 2-2 lists the ports on the EBBC.

Table 2-2 Ports on the EBBC

Label Re arks

EIL GE Serdes port

EIH0

EIH1

EIH2

EIa high-speed ports

DBS3800 Product Description

Issue V0.1 (2009-11-27) Huawei Proprietary and Confidential

Optical Sub-Board

The optical sub-board provides extension transmission ports for the BBU3806, enabling the

data transmission between the BBU3806 and the RNC. The optical sub-board cannot be

directly installed on the BBU3806. The sub-board needs to be installed on the corresponding

extension plugboard, and then the extension plugboard is installed on the BBU3806.

The optical sub-board of the BBU3806 is classified into the channelized optical sub-board

and unchannelized optical sub-board, as shown in Figure 2-4 and Figure 2-5 respectively.

Figure 2-4 Channelized optical sub-board

Figure 2-5 Unchannelized optical sub-board

Table 2-3 lists the ports on the optical sub-boards.

Table 2-3 Ports on the optical sub-boards

Optical Sub-Board Label Description

Channelized optical sub-board OPT Optical port

DBS3800 Product Description

Issue V0.1 (2009-11-27) Huawei Proprietary and Confidential

Optical Sub-Board Label Description

OPT_E

Unchannelized optical sub-board

OPT_W

EBBCd

In the RAN12.0 version, the EBBCd is introduced. The EBBCd is positioned in the extension

slot of the BBU3806 and supports evolution to HSPA+ Phase 2.

Figure 2-6 shows the EBBCd.

Figure 2-6 EBBCd

Table 2-4 lists the ports on the EBBCd.

Table 2-4 Ports on the EBBCd

Label Re arks

EIL GE Serdes port

EIH0

EIH1

EIH2

EIa high-speed ports

EIM Serial rapid IO (SRIO) port

2.2.2 BBU3806C

The BBU3806C is the outdoor model for the BBU3806.

Figure 2-7 shows the BBU3806C. The front view is on the left, the side view is in the middle,

and the front view of the housing is on the right.

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