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eLTE3.3 DBS3900
Product Description
Issue Draft A
Date 2014-09-22
HUAWEI TECHNOLOGIES CO., LTD.
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Issue Draft A (2014-10-27) Huawei Proprietary and Confidential
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Copyright Huawei Technologies Co., Ltd. 2014. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respectiveholders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and
the customer. All or part of the products, services and features described in this document may not be
within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,
information, and recommendations in this document are provided "AS IS" without warranties, guarantees orrepresentations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
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Product Description About This Document
Issue Draft A (2014-10-27) Huawei Proprietary and Confidential
Copyright Huawei Co., Ltd. 2014.
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About This Document
Change History
Date Version CR ID ModifiedChapter
Description Prepared By
2014-05 AFI 3.0 X2 version
2014-08 Pre-IUS 3.0 X4 version
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Product Description Contents
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Contents
1 Product Position and Features ................................................................................................ 1
1.1 Product Position .................................................................................................................................................... 1
1.2 Product Features .................................................................................................................................................... 2
2 Product Structure ...................................................................................................................... 3
2.1 Overview .............................................................................................................................................................. 3
2.2 Basic Module ........................................................................................................................................................ 3
2.2.1 eBBU ................................................................................................................................................................. 3
2.2.2 eRRU ................................................................................................................................................................. 8
3 Installation Scenarios ............................................................................................................ 16
4 Typical Configurations .......................................................................................................... 18
5 Operation and Maintenance ................................................................................................. 21
5.1 Overview .............................................................................................................................................................21
5.2 Characteristics ......................................................................................................................................................21
6 Technical Specifications ........................................................................................................ 23
6.1 DBS3900 station specifications .............................................................................................................................23
6.2 Device Specifications ...........................................................................................................................................25
6.3 Reliability Specifications ......................................................................................................................................30
6.4 Compliance Standards ..........................................................................................................................................30
7 Abbreviations Reference ....................................................................................................... 31
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Product Description 1 Product Position and Features
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1 Product Position and Features1.1 Product Position
The DBS3900 is used for radio access in the LTE system. The DBS3900 mainly performs
Radio Resource Management (RRM) functions such as air interface management, accesscontrol, mobile control, and User Equipment (UE) resource allocation.
The DBS3900 has two types of basic modules: enterprise baseband unit (eBBU) andenterprise remote radio unit (eRRU),Figure 1-1 shows the position of the DBS3900 in thewhole system.
Figure 1-1Position of the DBS3900 in the whole system
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Product Description 1 Product Position and Features
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1.2 Product Features
Supporting Multiple Frequency Bands
DBS3900 supports frequency bands such as 1.8 GHz, 1.4 GHz, 400 MHz, 800 MHz, 2.3 GHz,and 3.5 GHz, which meets the requirements of multiple frequency bands.
Distributed Architecture
In the distributed architecture, the BBU and RRU of an DBS3900 are separately deployed and
connected through fibers. This minimizes feeder loss and improves eNodeB coverage. Thedistributed BBU+RRU architecture allows RRUs to be mounted on walls or to poles, enabling
zero footprint site deployment. As a result, network deployment costs can be reduced by morethan 30% and network deployment efficiency is significantly improved.
Excellent PerformanceMaximum bit rates per TDD cell are up to100 Mbit/s downlink and 50 Mbit/s uplink over 20
MHz wide channels. The excellent performance can help customers preempt the commandingelevations of the professional mobile broadband industry and get rapid service expansion.
Flexible Networking
The DBS3900 supports varied frequency bands, enabling customers to provide services over
both readily and newly available frequency bands. Customers can utilize more than twofrequency bands on one wireless network based on the availability of frequency resources indifferent areas.
Energy-saving Base Station
RRUs are the most energy-consuming units of an eNodeB. Thanks to the cutting-edge
hardware design of power amplifiers and the use of innovative power amplifier andconsumption management technologies, the RRUs consume 40% less power than similar
products from other vendors.
Anti-network Paralysis
The DBS3900 supports "Fallback mode". When the Core Network Device is down, the eBBU
starts the CNPU which works as a Core Network; it will ensure that all the services under the
eNodeB work normal.
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Product Description 2 Product Structure
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2 Product Structure2.1 Overview
The DBS3900 features a distributed architecture and is comprised of two types of basicmodules: eBBU (enterprise Baseband control unit) and eRRU (enterprise remote radio unit).The eBBU and eRRU transmit CPRI signals via fiber optic cables that connect them through
common public radio interface (CPRI) ports. This kind of architecture satisfies therequirements of setting up enterprise wireless communication networks.
2.2 Basic Module
2.2.1 eBBU
The eBBU, a baseband unit, performs the following functions:
Provides ports for connection to the core network and processes related transmissionprotocols.
Provides CPRI ports for communication with eRRUs and processes uplink and downlinkbaseband signals.
Manages the entire base station by means of operation and maintenance (OM) andsignaling message processing.
Provides an OM channel towards the local maintenance terminal (LMT) or eOMC.
Provides clock ports for clock synchronization, alarm monitoring ports for environment
monitoring, and a Universal Serial Bus (USB) port for commissioning the use of a USBstorage device.
1. eBBU exterior
The eBBU has a compact case structure measuring 19 inches wide and 2 U high. Figure2-1 shows the eBBU exterior.
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Figure 2-1eBBU exterior
2. Boards of the eBBU
The eBBU is configured with the following mandatory boards and modules:
LTE main processing and transmission unit (LMPT): Manages the entire E-UTRANNodeB (eNodeB) in terms of OM, processes signaling, and provides clock signals for theeBBU.
LTE baseband processing unit (LBBP): Processes baseband signals and CPRI signals.
Baseband boards in eLTE3.3 support only D boards. If C boards are used, basebandboards in eLTE3.1 are required.
CNPU (Core network processing unit): Provides fallback mode capability.
Fan unit (FAN): Controls the rotation of fans, checks the temperature of the fan module,and performs heat dissipation for the BBU.
Universal power and environment interface unit (UPEU): Converts -48 V DC power into+12 V DC, and provides ports for transmission of two RS485 signal inputs and eightBoolean signal inputs.
"Fallback mode" means that when the Core Network Device is down, the eBBU starts the CNPU whichworks as a Core Network, it will ensure that all the services under the eNodeB work normal. CNPU is anoptional board.
Figure 2-2 shows the eBBU frame & slot distribution.
Figure 2-2eBBU frame & slot distribution
FAN
Slot16
POWER0Slot18
POWER1
Slot19
Slot0
Slot7
Slot6
Slot5
Slot4
Slot3
Slot2
Slot1
Figure 2-3 shows the CNPU panel.
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Board ormodule
Port Quantity Connector Function
FE/GE1 1 RJ45 Not used
SFP1 1 SFP Not used
USB port 1 USB Loading software
TST port 1 USB Testing
Commissioning Ethernetport
1 RJ45 Local maintenance
GPS antennaport
1 SMA Not used
LBBPd CPRI port 6 SFP Interface between the eBBUand eRRU
HEI port 1 QSFP Reserved
UPEUc Power port 1 3W3 Input for -48 V DC
MON0 1 RJ45 Transmitting RS485
monitoring signals andconnecting to externalmonitoring devices
MON1 1 RJ45
EXT-ALM0 1 RJ45 Transmitting dry contact
signals and connecting to
external alarm devices.EXT-ALM1 1 RJ45
4. eBBU configuration
Table 2-2 shows the eBBU configuration:
Table 2-2eBBU configuration
Name Optional/Mandatory
TypicalConfigurationQuantity
MaximumConfigurationQuantity
Slot ThatHouses theBoard
(ThePreceding IsPreferred)
Remarks
Subrack Mandatory
1 2 U high, 19-inch
wide, and with thebackplane
LMPT
(Maincontrolboard)
Mandatory
1 1 Slot 7
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Name Optional/Mandatory
TypicalConfigurationQuantity
MaximumConfigurationQuantity
Slot ThatHouses theBoard
(The
Preceding IsPreferred)
Remarks
CNPU
(Faultweakeningboard)
Optional 1 1 Slot 6 This board is
configured when thefault weakening
function is required.Functions of theCNPU are achieved
by loading softwareon the LMPT board.
LBBPc
(Basebandboard)
Optional 1 6 Slot 3 > 2 > 1 >0 > 4 > 5
A maximum of six
boards in this typecan be configured.
LBBPc and LBBPdcannot be configuredtogether. Baseband
boards in eLTE3.3support only Dboards.
LBBPd
(Basebandboard)
Optional 1 6 Slot 3 > 2 > 1 >0 > 4 > 5
FANc
(Fanmodule)
Mandatory
1 1 FAN It controls the
rotation of fans,detects the
temperature of thefan module, anddissipates heat fromthe eBBU.
UPEUc
(PowerModule)
Mandatory
1 2 PWR1 >PWR0
Configure two
boards when the
power consumptionof eBBU exceeds350 W. Two boards
need to beconfigured in the
following scenarios:(1)The powerconsumption of
eBBU is less than350 W but theactive/standby mode
power configurationis required.
(2)The powerconsumption of
eBBU exceeds 350W, that is, the total
number of
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Name Optional/Mandatory
TypicalConfigurationQuantity
MaximumConfigurationQuantity
Slot ThatHouses theBoard
(The
Preceding IsPreferred)
Remarks
configured LMPTand LBBPc/LBBPdexceeds four.
UEIU
(Enviro
nmentmonitoringmodule)
Optional 0 1 PWR0 When the UPEUc
cannot meet themonitoringrequirement from
users, the UEIUneeds to be
configured. TheUEIU shares a slotwith the UPEUc.When two UPEUc
are configured forhot backup, theUEIU cannot beconfigured but can
be replaced by thesecond UPEUc.
UFLPb
(FE/GEsurge
protectionmodule)
Optional 0 1 Any slot UFLPb can beconfigured in anyslot on eBBU. It is
recommended thatthe UFLPb beinstalled in slot 6
when eBBU isconfigured with oneLMPT. The UFLPb
is preferred to beinserted into theSLPU surge
protection box. TheUFLPb supports
surge protection onFE/GE ports.
2.2.2 eRRU
One or more eRRU constitute the radio frequency (RF) part of a distributed base station.eRRUs can be installed on a pole, wall, or stand. They can also be installed close to antennasto shorten the feeder length, reduce feeder loss, and improve system coverage. eRRUs serve
to modulate and demodulate baseband signals and RF signals, process data, amplify powerand detect standing waves.
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To meet the needs of different application scenarios, the solution provides a variety of eRRU,
including:
eRRU3232: 1.8 GHz (1785 MHz to 1805 MHz), 4 paths, is mainly applied to outdoormacro base stations;
eRRU3253: 1.4 GHz (1447 MHz to 1467 MHz), 8 paths, is mainly applied togovernment networks;
eRRU3255: 400 MHz (380 MHz to 400 MHz), 2 paths, mainly applied to outdoorscenario, also can be applied in indoor scenario;
eRRU3251: 1.8 GHz (1785 MHz to 1805 MHz), 2 paths, mainly applied to indoorcoverage and linear coverage situations, such as railway, subway, mine;
eRRU3222: 800 MHz (Download 791 MHz to 821 MHz, Upload 832 MHz to 862 MHz),2 paths, mainly applied to 800 MHz outdoor macro base stations;
eRRU3252: 2.3 GHz (2300 MHz to 2400 MHz), 4 paths
eRRU3232: 3.5 GHz (3605 MHz to 3685 MHz, 3480 MHz to 3500 MHz, 3580 to 3600
MHz), 4 paths, mainly applied to 3.5 GHz outdoor macro base stations. Supports onlythe DC mode and Huawei logo.
Customers can choose to apply different eRRUs according to the frequency band available to
them.
1. eRRU Exterior
Figure 2-4 shows the eRRU3232 exterior.Figure 2-5 shows the eRRU3253 exterior.Figure
2-6 shows the eRRU3255 exterior.Figure 2-7 shows the eRRU3251 exterior.
Figure 2-4eRRU3232 exterior
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Figure 2-5eRRU3253 exterior
Figure 2-6eRRU3255 exterior
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Figure 2-7eRRU3251 exterior
Figure 2-8eRRU3222 exterior
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Figure 2-9eRRU3252 exterior
2. Ports on an eRRU
An eRRU has a modular structure. Its external ports are located in the cabling cavity atthe bottom of the module.Table 2-3 andTable 2-4 describe the ports on eRRU3232.Table 2-5 describes the ports on eRRU3253.Table 2-6describes the ports on eRRU3255.
Table 2-7 describes the ports on eRRU3251.Table 2-8describes the ports on eRRU3222.Table 2-9 describes the ports on eRRU3252.
Table 2-3Ports on eRRU3232 (DC)
Port Connector Quantity Function
CPRT Port DLC 2 Connect to eBBU
RF Port Type N 4 Connect to antenna
Ground Port OT 2 Ground protection
PowerSupply Port
Easy power
receptacle
(press fit type)
2 Receive48 V DC power
RET Port DB9 1 Externally monitor port, get alarm and
state info of external devices, Supportmanagement of external electricalequipment through RS485.
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Table 2-4Ports on eRRU3232 (AC)
Port Connector Quantity Function
CPRT Port DLC 2 Connect to eBBU
RF Port Type N 4 Connect to antenna
Ground Port OT 2 Ground protection
CalibrationPort
3 pin roundconnector
1 Receive 220 V AC power
PowerSupply Port
DB9 1 Externally monitor port, get alarm and
state info of external devices, Supportmanagement of external electricalequipment through RS485.
Table 2-5Ports on eRRU3253
Port Connector Quantity Function
CPRT Port DLC 2 Connect to eBBU
RF Port Type N 8 Connect to antenna
Ground Port OT 2 Ground protection
CalibrationPort
Type N 1 Calibrate antenna
PowerSupply Port
Easy power
receptacle(press fit type)
1 Receive48 V DC power
RET Port DB9 1 Externally monitor port, get alarm and
state info of external devices, Supportmanagement of external electricalequipment through RS485.
Table 2-6Ports on eRRU3255Port Connector Quantity Function
CPRT Port DLC 2 Connect to eBBU
RF Port Type N 2 Connect to antenna
Ground Port OT 2 Ground protection
PowerSupply Port
Easy power
receptacle(press fit type)
1 Receive48 V DC power
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Port Connector Quantity Function
RET Port DB9 1 Externally monitor port, get alarm and
state info of external devices, Supportmanagement of external electricalequipment through RS485.
Table 2-7Ports on RRU3251
Port Connector Quantity Function
CPRT Port DLC 2 Connect to eBBU
RF Port Type N 2 Connect to antenna
Ground Port OT 2 Ground protection
PowerSupply Port
Easy power
receptacle(press fit type)
1 Receive48 V DC power
RET Port DB9 1 Externally monitor port, get alarm and
state info of external devices, Supportmanagement of external electricalequipment through RS485.
Table 2-8Ports on RRU3222
Port Connector Quantity Function
CPRT Port DLC 2 Connect to eBBU
RF Port Type DIN 2 Connect to antenna
Ground Port OT 2 Ground protection
PowerSupply Port
Easy power
receptacle(press fit type)
1 Receive48 V DC power
RET Port DB9 1 Externally monitor port, get alarm and stateinfo of external devices, Supportmanagement of external electricalequipment through RS485.
Alarm Port DB15 1 Connect to alarm single of external devices
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Table 2-9Ports on eRRU3252
Port Connector Quantity Function
CPRT Port DLC 2 Connect to eBBU
RF Port Type N 4 Connect to antenna
RGPS Port DB15 1 Connect to RGPS antenna
Ground Port OT 2 Ground protection
Power SupplyPort
Easy power
receptacle(press fit type)
1 Receive48 V DC power
RET
/EXT_ALMPort
DB9 1 Externally monitor port, get alarm and
state info of external devices, Supportmanagement of external electrical
equipment
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Product Description 3 Installation Scenarios
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Figure 3-2DBS3900 Typical Indoor Installation Scenario
If the DBS3900 is deployed indoors, the BBU can be installed in a 19-inch cabinet or rack, in
an Indoor Mini Box (IMB03). The eBBU is able to use the power supply system andtransmission system of the existing network.
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Product Description 4 Typical Configurations
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4 Typical ConfigurationsTable 4-1Typical configurations of the DBS3900 400M frequency band
Configuration MIMO Quantity of LBBP Quantity of RRU
3 x 3 MHz 2 x 2 MIMO 1 LBBP 3 RRU
3 x 5 MHz 2 x 2 MIMO 1 LBBP 3 RRU
3 x 10 MHz 2 x 2 MIMO 1 LBBP 3 RRU
3 x 20 MHz 2 x 2 MIMO 1 LBBP 3 RRU
Table 4-2Typical configurations of the DBS3900 1.4G frequency band
Configuration MIMO Quantity of LBBP Quantity of RRU
3 x 10 MHz 2 x 2 MIMO 1 LBBP 1 RRU
3 x 10 MHz 4 x 2 MIMO 1 LBBP 2 RRU
3 x 20 MHz 2 x 2 MIMO 1 LBBP 1 RRU
3 x 20 MHz 4 x 2 MIMO LBBPd: 1 LBBP 2 RRU
LBBPc: 3 LBBP
3 x 10 MHz 8T8R Beamforming 1 LBBP (only LBBPd
supports)
3RRU
3 x 20 MHz 8T8R Beamforming 1 LBBP (only LBBPdsupports)
3RRU
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Product Description 4 Typical Configurations
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Table 4-3Typical configurations of the DBS3900 1.8G 4T4R frequency band
Configuration MIMO Quantity of LBBP Quantity of RRU
3 x 5 MHz 2 x 2 MIMO 1 LBBP 2 RRU
3 x 5 MHz 4 x 2 MIMO 1 LBBP 3RRU
3 x 10 MHz 2 x 2 MIMO 1 LBBP 2 RRU
3 x 10 MHz 4 x 2 MIMO 1 LBBP 3 RRU
3 x 20 MHz 2 x 2 MIMO 1 LBBP 2 RRU
3 x 20 MHz 4 x 2 MIMO LBBPd: 1 LBBP 3 RRU
LBBPc: 3 LBBP
Table 4-4Typical configurations of the DBS3900 1.8G 8T8R frequency band
Configuration MIMO Quantity of LBBP Quantity of RRU
3 x 5 MHz 2 x 2 MIMO 1 LBBP 3 RRU
3 x 10 MHz 2 x 2 MIMO 1 LBBP 3 RRU
3 x 20 MHz 2 x 2 MIMO 1 LBBP 3 RRU
Table 4-5Typical configurations of the DBS3900 800M 2T2R frequency band
Configuration MIMO Quantity of LBBP Quantity of RRU
3 x 5 MHz 2 x 2 MIMO 1 LBBP 3 RRU
3 x 10 MHz 2 x 2 MIMO 1 LBBP 3 RRU
3 x 20 MHz 2 x 2 MIMO 1 LBBP 3 RRU
Table 4-6Typical configurations of the DBS3900 2.3G 4T4R frequency band
Configuration MIMO Quantity of LBBP Quantity of RRU
3 x 5 MHz 2 x 2 MIMO 1 LBBP 2 RRU
3 x 5 MHz 4 x 2 MIMO 1 LBBP 3RRU
3 x 10 MHz 2 x 2 MIMO 1 LBBP 2 RRU
3 x 10 MHz 4 x 2 MIMO 1 LBBP 3 RRU
3 x 20 MHz 2 x 2 MIMO 1 LBBP 2 RRU
3 x 20 MHz 4 x 2 MIMO LBBPd: 1 LBBP 3 RRU
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Configuration MIMO Quantity of LBBP Quantity of RRU
LBBPc: 3 LBBP
Table 4-7Typical configurations of the DBS3900 3.5G 4T4R frequency band
Configuration MIMO Quantity of LBBP Quantity of RRU
3 x 5 MHz 2 x 2 MIMO 1LBBP 2RRU
3 x 5 MHz 4 x 2 MIMO 1LBBP 3RRU
3 x 10 MHz 2 x 2 MIMO 1LBBP 2RRU
3 x 10 MHz 4 x 2 MIMO 1LBBP 3 RRU
3 x 20 MHz 2 x 2 MIMO 1LBBP 2RRU
3 x 20 MHz 4 x 2 MIMO 1 LBBP 3 RRU
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Product Description 5 Operation and Maintenance
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5 Operation and Maintenance5.1 Overview
The DBS3900 supports the O&M system that is based on the man-machine language (MML)and the graphic user interface (GUI). The O&M system enables a hardware-independentO&M mechanism and provides powerful O&M functions for users to meet various O&M
requirements.
5.2 Characteristics
Robust Hardware Management, Rapid Fault Location and Rectification
DBS3900 hardware management provides pre-warning mechanism and resetting mechanismto make sure sufficient time are left for troubleshooting before service interruptions. Recoverycan be implemented by resetting to avoid severe accidents in case faults cannot be cleared intime. When a hardware fault occurs, the DBS3900 alerts the user by generating alarms and
flashing indicators and provides suggestions to guide the user in troubleshooting. After thefault is recovered, the alarm is cleared.
Advanced Software Management and Smooth Upgrade
DBS3900 software management provides upgrade and rollback mechanism, which allows a
software version upgrade and rollback to another version. The upgrade process includesdownloading software files to the OMU using the Security File Transfer Protocol (FTPS)
server, loading the software from the OMU to the flash of each board, and activating thesoftware in the board flash. This process does not affect other services and adopts theprotection mechanism to raise the success rate of switching. The effect on available resourcesis reduced to the lowest level.
Key data is backed up in the process of upgrading. Therefore, a rollback can be generatedimmediately when upgrade fails, and the system recovers to a normal state in a short time.
After the upgrade is complete, version consistency check is performed to verify the versioncorrectness.
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Product Description 5 Operation and Maintenance
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Rich Tracing and Detection Functions
DBS3900 provides hierarchical tracing and detection functions, including user tracing,interface tracing, message tracing, fault detection on the physical layer, fault detection on the
data link layer, and other fault detection functions, facilitating fault locating. The tracinginformation can be saved into files and be checked using the tracing retrospection tool.
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Product Description 6 Technical Specifications
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6 Technical Specifications6.1 DBS3900 station specifications
Table 6-1DBS3900 station specifications
Item Specification Notes
Whole system
Maximum CellNumber
LBBPd:
12Cells(8T8R 20 MHz/8T8R10 MHz/4T4R 20 MHz/
4T4R 5 MHz/4T4R 10MHz/2T2R 5 MHz/2T2R 10
MHz/2T2R 20 MHz)
Maximum
Throughput pereNodeB
Downlink: 450 Mbit/s
Uplink: 300 Mbit/s
Maximum Number
of UEs inRRC-connectedMode per eNodeB
3600
eRRU maximumdistance
LBBPd: 38 km When cascaded to three levels with
10M/20M, the maximum distance
between two consecutive eRRUcannot exceed 17 km.
eRRU cascading
LBBPc: 3 levels to the max
LBBPd: 6 levels to the max
5M 2T2R 6-level cascading
10M 2T2R 4-level cascading
20M 2T2R 2-level cascading
Only eRRU3251 supports cascading
Networking Star type/Chain type/Loadsharing
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Item Specification Notes
LBBPd specification
Max cell number
of per LBBPd3 20M 4T4R/2T2R/1T1R
10M 4T4R/2T2R/1T1R
5M 4T4R/2T2R/1T1R
3M 4T4R/2T2R/1T1R
Back-to-back
combinationbetween eRRU
eRRU number of per cell 2
Max supported combinedcell number of per LBBPd
3 x 5M 2T2R
3 x 10M 2T2R
3 x 20M 2T2R
Back-to-back
combination ineRRU
eRRU number of per cell
1
Max supported combinedcell number of per LBBPd
3 x 5M 2T2R
3 x 10M 2T2R
3 x 20M 2T2R
Indoor
combinationbetween eRRU
eRRU number of per cell 6
Max supported combinedcell number of per LBBPd
3 x 5M 1T1R
3 x 10M 1T1R
3 x 20M 1T1R
3 x 5M 2T2R
3 x 10M 2T2R
3 x 20M 2T2R
Indoor
combination ineRRU
eRRU number of per cell 1
Max supported combinedcell number of per LBBPd
3 x 5M 1T1R
3 x 10M 1T1R
3 x 20M 1T1R
3 x 5M 2T2R
3 x 10M 2T2R3 x 20M 2T2R
Combination between eRRUs means that multiple eRRUs merge into one cell which apply only5M/10M/20M system bandwidth, and only supports 2T2R of eRRU.
Combination in eRRU means that several paths of an eRRU merge into one cell, namely the antennas ofan eRRU split into multiple 2-path and then merge into the same cell.
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6.2 Device Specifications
Table 6-2eBBU device specifications
Item Specification
Dimensions (H x W x D) 86 mm x 442 mm x 310 mm
Weight 12 kg(In full configuration)
Input Power -48 V DC (-38.4 V DC to -57 V DC)
Temperature 20C to +55C
Relative Humidity 5% RH to 95% RH
Atmospheric Pressure 70 kPa to 106 kPa
Power consumption A baseband unit (eBBU3900) includes:One fan module (FANc) and one power module (UPEUc):53.5 W
LMPT system control board: 40 W
CNPU fallback board: 40 W
LBBPc baseband board: 83 W
LBBPd baseband board: 90 W
USCUb clock board: 4 W (8HP USCUb22)
PEUc module: 23 W
Ingress Protection Rating IP20
CPRI Port 6 CPRI ports per LBBP
Standard CPRI4.1 port, compatible with CPRI3.0
CPRI port supports: automatic switching between 2.4576Gbit/s and4.9152 Gbit/s
Transmission Port 2 FE/GE electrical port
Or 2 FE/GE optical port
Or 1 FE/GE electrical port and 1 FE/GE optical port
Cell Max cell number:12
Cell frequency bandwidth:3 MHz/5 MHz/10 MHz/20 MHz
(only eRRU3255 supports 3 MHz)
Clock synchronization GPS
Cooling Forced air cooling (Left in, right out)
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Table 6-3eRRU3232(4T4R) device specifications
Item Specification
Frequency Band and
Bandwidth
Frequency Band Bandwidth
1.8 GHz:
1785 MHz to 1805 MHz
1785 MHz to 1800 MHz
5 MHz/10 MHz/20MHz
Dimensions (H x W x D) 480 mm x 270 mm x 140 mm
Weight 18.5 kg
Input Power -48 V DC, voltage range: -36 V DC to -57 V DC
220 V AC, voltage range: 90 V AC to 290 V AC
Maximum output Power 4 x 20 W
Power consumption Typical average power consumption: 350 W
Typical max power consumption: 465 W
Receiving sensitivity -103.5dBm
Temperature -40C to +50C
Relative Humidity 5% RH to 100% RH
Atmospheric Pressure 70 kPa to 106 kPa
Ingress Protection Rating IP65
Table 6-4eRRU3253(8T8R) device specifications
Item Specification
Frequency Band andBandwidth
Frequency Band Bandwidth
1.4 GHz:
1447 MHz to 1467 MHz
10 MHz/20 MHz
Dimensions (H x W x D) 550 mm x 320 mm x 135 mm
Weight 24 kg
Input Power -48 V DC, voltage range: -32 V DC to -60 V DC
Maximum Output Power 8 x 8 W @ 2:2 (time slot ratio)
8 x 6 W @ 1:3
Power consumption Typical average power consumption: 250 W
Typical max power consumption: 300 W
Receiving sensitivity -103dBm
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Item Specification
Temperature -40C to +45C @ 2: 2+8 W/Path or 1: 3+6 W/Path
-40C to +50C @ 2: 2+6 W/Path or 1: 3+5 W/Path
Relative Humidity 5% RH to 100% RH
Atmospheric Pressure 70 kPa to 106 kPa
Ingress Protection Rating IP65
Table 6-5eRRU3255 (2T2R) device specifications
Item Specification
Frequency Band andBandwidth
Frequency Band Bandwidth
400 MHz:
380 MHz to 400 MHz
3 MHz/5 MHz/10MHz/20 MHz
Dimensions (H x W x D) 480 mm x 270 mm x 140 mm
Weight < 18 kg
Input Power -48 V DC, voltage range: -36 V DC to -60 V DC
Maximum Output Power 2 x 20 W
Power consumption Typical average power consumption: 220 W
Typical max power consumption: 320 W
Receiving sensitivity -103.5dBm @5 MHz/10 MHz/20 MHz
-104.5dBm @3 MHz
Temperature -40C to +55C
Relative Humidity 5% RH to 100% RH
Atmospheric Pressure 70 kPa to 106 kPa
Ingress Protection Rating IP65
Table 6-6eRRU3251 (2T2R) device specifications
Item Specification
Frequency Band andBandwidth
Frequency Band Bandwidth
1800 MHz:
1785 MHz to 1805 MHz
5 MHz/10 MHz/20MHz
Dimensions (H x W x D) 400 mm x 220 mm x 140 mm
Weight < 12.5 kg
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Item Specification
Input Power -48 V DC, voltage range: -36 V DC to -60 V DC
Maximum Output Power 2 x 20 W
Power consumption Typical average power consumption: 190 W
Typical max power consumption: 250 W
Receiving sensitivity -102dBm
Temperature -40C to +50C
Relative Humidity 5% RH to 100% RH
Atmospheric Pressure 70 kPa to 106 kPa
Ingress Protection Rating IP65
Table 6-7eRRU3222 (2T2R) device specifications
Item Specification
Frequency Band andBandwidth
Frequency Band Bandwidth
800 MHz:
Download 791 MHz to 821 MHz
Upload 832 MHz to 862 MHz
5 MHz/10 MHz/20MHz
Dimensions (H x W x D) 480 mm x 270 mm x 140 mm (18L, without shell)
485 mm x 300 mm x 170 mm (25L, with shell)
Weight 17.5 kg (without shell)
20 kg (with shell)
Input Power -48 V DC, voltage range: -57 V DC to -36 V DC
Maximum Output Power 2 x 40 W
Power consumption 300 W
Receiving sensitivity 1T1R: -106.4dBm
1T2R: -109.2 dBm
Temperature -40C to +50C (1120 W/m solar radiation)
-40C to +55C (without solar radiation)
Relative Humidity 5% RH to 100% RH
Atmospheric Pressure 70 kPa to 106 kPa
Ingress Protection Rating IP65
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Table 6-8eRRU3252 (4T4R) device specifications
Item Specification
Input Power -48 V DC, voltage range: -32 V DC to -60 V DC
Dimensions (H x W x D) 480 mm x 270 mm x 140 mm (18L, without shell)
Weight 19.5 kg (without shell)
Maximum output Power 4 x 20 W
Frequency Band 2300 to 2400 MHz
Power consumption Typical average power consumption: 310 W
Typical max power consumption: 330 W
Temperature -40C to +50C (without solar radiation)
Relative Humidity 5% RH to 100% RH
Atmospheric Pressure 70 kPa to 106 kPa
Shake Proof Protection NEBS GR63 zone4
Ingress Protection Rating IP65
Table 6-9eRRU3232 (4T4R) device specifications
Item Specification
Frequency Band andBandwidth
Frequency Band Bandwidth
3.5 GHz:
3605-3685 MHz
3480-3500 MHz
3580-3600 MHz
5 MHz/10 MHz/20MHz
Dimensions (H x W x D) 480 mm x 270 mm x 140 mm
Weight 18.5 kg
Input Power -48 V DC, voltage range: -36 V DC to -57 V DC
Maximum output Power 4 x 10 W
Power consumption Typical average power consumption: 350 W
Typical max power consumption: 465 W
Receiving sensitivity -103.5dBm
Temperature -40C to +50C
Relative Humidity 5% RH to 100% RH
Atmospheric Pressure 70 kPa to 106 kPa
Ingress Protection Rating IP65
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6.3 Reliability Specifications
Table 6-10Reliability specifications
Item Specification
System Availability 99.999%
Mean Time Between Failures 155,000 hours
Mean Time to Repair 1 hour
System Restarting Time < 450s
6.4 Compliance Standards
Table 6-11Compliance standards
Item Standard
Storage ETSI EN300019-1-1 V2.1.4 (2003-04) class1.2 "Weatherprotected, not temperature-controlled storage locations"
Transportation ETSI EN300019-1-2 V2.1.4 (2003-04) class 2.3 "Publictransportation"
Anti-seismicPerformance
Interim Provisions for Test of Anti-seismic Performances ofTelecommunications Equipment (Telecommunication IndustryStandard of the People's Republic of China)
ElectromagneticCompatibility (EMC)
The eNodeB meets the Electromagnetic Compatibility (EMC)requirements and complies with the following standards:
R&TTE Directive 1999/5/EC
R&TTE Directive 89/336/EEC
3GPP TS 36.113
ETSI EN 301489-1/23
ETSI EN 301908-1 V2.2.1 (2003-10)
ITU-R SM.329-10
CTA
CE
RoHS
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Product Description 7 Abbreviations Reference
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7 Abbreviations ReferenceTable 7-1Abbreviations reference table
Abbreviation Full name
ANR Automatic Neighboring Relationship
APM Advanced Power Module
eBBU enterprise Baseband control Unit
CAPEX Capital Expenditure
CDMA Code Division Multiple Access
CNPU Core Network Processing Unit
CPRI Common Public Radio Interface
DBS Distribution Base Station
E-UTRAN Evolved UMTS Terrestrial Radio Access Network
FAN Fan Unit
FE Fast Ethernet
GE Gigabit Ethernet
GPS Global Positioning System
GSM Global System for Mobile communications
IBBS Integrated Battery Backup System
ICIC Inter-Cell Interference Coordination
IMB Indoor Mini Box
IP Internet Protocol
LMT Local Maintenance Terminal
LTE Long Term Evolution
MIMO Multiple Input Multiple Output
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Product Description 7 Abbreviations Reference
Abbreviation Full name
MRO Mobility Robust Optimization
MTBF Mean Time Between Failures
MTTR Mean Time to Repair
OM Operation and Maintenance
OPEX Operating Expenditure
RGPS Remote Global Positioning System
RCU Remote Control Unit
RET Remote Electrical Ttilt
RRM Radio Resource Management
eRRU enterprise Remote Radio Unit
TCO Total Cost of Ownership
TMC Transmission Cabinet
UMTS Universal Mobile Telecommunications System
UPEU Universal Power and Environment Interface Unit
USB Universal Serial Bus
UTRA UMTS Terrestrial Radio Access (ETSI)
UTRAN UMTS Terrestrial Radio Access Network