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
Copyright © Huawei Technologies Co., Ltd.
Copyright © Huawei Technologies Co., Ltd. 2009. All rights reserved.
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DBS3800 Product Description
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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
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1
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.
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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.
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2
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.
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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.
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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
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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
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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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