Huawei RAN12.0 DBS3800 Technical specifications

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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Huawei Technologies Co., Ltd.
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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

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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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Figure 2-7 BBU3806C
The BBU3806C has two grounding screws at the bottom.
Table 2-5 lists the ports on the BBU3806C.
Table 2-5 Ports on the BBU3806C
Position Label
Re arks
PWR Power supply socket for feeding external power supply
8*E1/T1
2*FE
Iub interface for transmitting baseband signals between the
BBU3806C and the RNC
E1 GND Grounding port for E1 cables
GPS Port for GPS signal input
OPT Reserved
RS485 Port for reporting RS485 alarms
Bottom
EXT_AL
M Port for four dry contact alarms
CPRI0
CPRI1
CPRI2
Optical ports for connecting the BBU3806C and the RRU
Cabling
cavity
EIa Reserved
ON/OFF Power switch
10M Port for 10 MHz clock outputs
8K/TTI 8 kHz TTI test port
ETH_RS
232 Commissioning port
Maintenance
cavity
RST Reset button

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The EBBM is an extended board that can be installed in the BBU3806C to increase the
baseband processing capacity. The EBBM supports HSUPA phase 2.
Figure 2-8 shows the EBBM.
Figure 2-8 EBBM
2.2.3 RRU3801C
The RRU3801C is the remote radio unit that transmits and processes the signals between the
antenna system and the BBU3806 or BBU3806C.
Figure 2-9 shows the RRU3801C. The front view is on the left, the side view is in the middle,
and the front view of the RRU housing is on the right.
Figure 2-9 BBU3801C
Table 2-6 lists the specifications of the RRU3801C.

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Table 2-6 Specifications of the RRU3801C
Product Maxi u
Output Power
Nu ber of
Supported
Carriers
Nu ber of Supported
Sectors
RRU3801C 40 W 2 1
The RRU3801C has two grounding screws at the bottom.
Table 2-7 lists the ports on the RRU3801C.
Table 2-7 Ports on the RRU3801C
Position
Label Re arks
PWR Power supply socket for feeding external power
supply
ANT_TX/RXA Main TX/RX port
ANT_RXB Diversity RX port
RX_IN/OUT Port for RRU3801C interconnection
Bottom
RET Port for communication with the RET antenna
EXT_ALM/FAN External alarm port/fan port
CPRI_E
Cabling cavity
CPRI_W
Optical ports
ETH
RS232
Commissioning ports
OFF/ON Power switch
RST Reset button
TST_ANT Antenna test port
Maintenance
cavity
TST_CPRI CPRI test button
2.2.4 RRU3804 or RRU3801E
The RRU3804 or RRU3801E is the remote radio unit that transmits and processes the signals
between the antenna system and the BBU3806 or BBU3806C.
The RRU3804 consists of the RRU3804 (DC) and RRU3804 (AC).

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Figure 2-10 and Figure 2-11 show the RRU3804 (DC) or RRU3801E and RRU3804 (AC)
respectively.
Figure 2-10 RRU3804 (DC) or RRU3801E
Figure 2-11 RRU3804 (AC)
Table 2-8 lists the specifications of the RRU3804 or RRU3801E.
Table 2-8 Specifications of the RRU3804 or RRU3801E
Product Maxi u
Output Power
Nu ber of
Supported
Carriers
Nu ber of Supported
Sectors
RRU3804 60 W 4 1
RRU3801E 40 W 2 1
The RRU3804 (DC) or RRU3801E has four grounding screws at the bottom.

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Table 2-9 lists the ports on the RRU3804 (DC) or RRU3801E.
Table 2-9 Ports on the RRU3804 (DC) or RRU3801E
Position Label Re arks
ANT_TX/RXA Main TX/RX port
ANT_RXB Diversity RX port
RX_IN/OUT Port for RRU3804 interconnection
Bottom
RET Port for communication with the RET antenna
RS485/EXT_ALM Port for reporting alarms
RTN (+)
NEG(-)
Terminals for power wires
CPRI_E
Cabling cavity
CPRI_W
Optical ports
Table 2-10 lists the ports on the RRU3804 (DC) or RRU3801E.
Table 2-10 Ports on the RRU3804 (AC)
Position Label Re arks
AC-in AC power input socket
DC-out DC power output socket
ANT_TX/RXA Main TX/RX port
ANT_RXB Diversity RX port
RX_IN/OUT Port for RRU3804 interconnection
Bottom
RET Port for communication with the RET antenna
RS485/EXT_ALM Port for reporting alarms
RTN (+)
NEG(-)
Terminals for power wires
CPRI_E
Cabling cavity
CPRI_W
Optical ports
2.2.5 RRU3808
The RRU3808 transmits and processes RF signals between the BBU3806 or BBU3806C and
the antenna system.

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Figure 2-12 shows the RRU3808.
Figure 2-12 RRU3808
Table 2-11 lists the specifications of the RRU3808.
Table 2-11 Specifications of the RRU3808
Product Maxi u
Output Power
Nu ber of
Supported
Carriers
Nu ber of Supported
Sectors
RRU3808 2*40 W 4 1
Table 2-12 lists the ports on the RRU3808.
Table 2-12 Ports on the RRU3808
Position Label Re arks
ANT-TX/RXA Main TX/RX port
ANT-TX/RXB Diversity TX/RX port
Bottom
RET/MON Port for communication with the RET antenna
and for monitoring
TX RX CPRI_E Eastern optical port
TX RX CPRI_W Western optical port
RTN(+)0
Cabling cavity
NEG(-)0
Terminals for power wires from the RRU3808

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Position Label Re arks
RTN(+)1
NEG(-)1
Terminals for power wires from cascaded
RRU3808s
2.3 Auxiliary Devices
The DBS3800 system consists of functional modules and auxiliary devices, which can be
flexibly combined to meet the different network deployment requirements.
The auxiliary devices of the DBS3800 are as follows:
APM30
Signal Lightning Protection Unit (SLPU)
Indoor centralized mounting rack
Rack of three RRUs
2.3.1 APM30
As an outdoor integrated power backup system, the APM30 provides the following functions:
–48 V DC power
2 U to 7 U space for installing customer equipment
DC power supply
Battery management
Power system monitoring
Power distribution
Surge protection
Temperature control
Power backup
The APM30 can be installed on a pole or ground.
2.3.2 SLPU
The SLPU protects the E1/T1 signals and Ethernet signals over the BBU3806 from lightning
surge. It implements the following functions:
A maximum of four surge protectors can be configured. The surge protector is classified
into E1/T1 surge protector and FE surge protector.
Cables are routed from the front panel and maintenance can be performed on the front
side.
The Surge Protection Box for Coaxial (SPBC) is 1 U high and can be installed in a
19-inch or 23-inch cabinet, or installed on a wall.

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2.3.3 Indoor Centralized Mounting Rack
An indoor centralized rack provides a 10 U space for the 19-inch equipment or accommodates
three RRU3801Cs.
2.3.4 Rack of Three RRUs
The rack of three RRUs supports centralized installation of three RRUs and can be installed
on a metal pole, wall, or stand.

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3 Products and Application Scenarios
3.1 Overview
The DBS3800 consists of the following functional modules:
BBU3806
BBU3806C
RRU3801C
RRU3804 (DC)
RRU3804 (AC)
RRU3801E
RRU3808
These modules can be flexibly deployed in various indoor and outdoor installation scenarios.
3.2 Application Scenarios
The application scenarios of the DBS3800 are as follows:
Indoor centralized application of BBU+RRUs
BBU indoor/RRUs outdoor installation
Outdoor distributed installation of BBU+RRUs
Outdoor centralized installation of BBU+RRUs
3.2.1 Indoor Centralized Application of BBU+RRUs
Figure 3-1 shows the indoor centralized application of BBU+RRUs.
The characteristics are as follows:
The BBU3806 and RRUs must use –48 V DC power supply.
The indoor centralized installation rack is adopted to implement the centralized
installation of the BBU3806 and the power system, and the centralized installation of
three RRUs.
The indoor centralized installation rack supports the installation on a wall and the stack
installation.

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Figure 3-1 Indoor centralized application of BBU+RRUs
3.2.2 BBU Indoor/RRUs Outdoor Installation
Figure 3-2 shows the BBU indoor/RRUs outdoor installation.
The characteristics are as follows:
The BBU3806 and RRUs must use –48 V DC power supply.
The BBU3806 and the power system are installed in the customer equipment or on the
indoor centralized installation rack.
The RRUs are installed on the metal pole or wall close to the antenna.
Antenna
Feeder