eran21-1dbs3900ltefddproductdescription2011q1-120823005128-phpapp02.pdf

eRAN2.1 DBS3900 LTE Product Description

Issue V2.0

Date 2011-01-20

HUAWEI TECHNOLOGIES CO., LTD.

Copyright Huawei Technologies Co., Ltd. 2011. 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.

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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 respective holders.

Notice The purchased products, services and features are stipulated by the commercial contract made between Huawei and the customer. All or partial products, services and features described in this document may not be within the purchased scope or the usage scope. Unless otherwise agreed by the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations 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, and recommendations in this document do not constitute the 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]


V2.0 (2011-01-20) Huawei Proprietary and Confidential

Copyright Huawei Technologies Co., Ltd. Page 2 of 47

Contents

1 DBS3900 LTE Overview..................................................................................................... 4

1.1 Positioning ........................................................................................................................................... 4 1.2 Benefits ................................................................................................................................................ 5

2 Architecture .......................................................................................................................... 7

2.1 Overview .............................................................................................................................................. 7 2.2 BaseBand Unit ..................................................................................................................................... 8

2.2.1 Exterior of the BBU3900 ............................................................................................................ 8 2.2.2 Boards of the BBU3900 .............................................................................................................. 8 2.2.3 Ports on the BBU3900 ................................................................................................................ 9

2.3 RRU ................................................................................................................................................... 10 2.3.1 Exterior of the RRU .................................................................................................................. 10 2.3.2 Ports on the RRU ...................................................................................................................... 13

2.4 Auxiliary Devices ............................................................................................................................... 15 2.4.1 Advanced Power Module with Heat-Exchanger Cooler ........................................................... 15 2.4.2 Integrated Battery Backup System ............................................................................................ 16 2.4.3 Transmission Cabinet with Heat-Exchanger Cooler ................................................................. 17

3 Application Scenarios ...................................................................................................... 19

3.1 Overview ............................................................................................................................................ 19 3.2 BBU+RRU+APM30H Ver.B ............................................................................................................. 19 3.3 BBU+RRU+TMC11H Ver.B .............................................................................................................. 20 3.4 BBU+RRU+19-Inch Cabinet ............................................................................................................. 21 3.5 BBU+RRU+Indoor Wall .................................................................................................................... 22 3.6 BBU+RRU+ICR ................................................................................................................................ 23 3.7 BBU+RRU+IMB03 ........................................................................................................................... 24 3.8 BBU+RRU+OMB .............................................................................................................................. 25

4 Configuration..................................................................................................................... 27

4.1 Typical Configuration ........................................................................................................................ 27 4.2 Maximum Configuration .................................................................................................................... 27

5 Operation and Maintenance ........................................................................................... 29

5.1 Overview ............................................................................................................................................ 29 5.2 OM System ........................................................................................................................................ 29




5.3 Benefits .............................................................................................................................................. 30 5.3.1 Configuration Management ...................................................................................................... 30 5.3.2 Fault Management .................................................................................................................... 31 5.3.3 Performance Management ........................................................................................................ 32 5.3.4 Security Management ............................................................................................................... 32 5.3.5 Software Management .............................................................................................................. 33 5.3.6 Deployment Management ......................................................................................................... 33 5.3.7 Equipment Management ........................................................................................................... 33 5.3.8 Inventory Management ............................................................................................................. 34

6 Technical Specifications .................................................................................................. 35

6.1 Capacity Specifications ...................................................................................................................... 35 6.2 Equipment Specifications ................................................................................................................... 36

6.2.1 BBU3900 .................................................................................................................................. 36 6.2.2 RRU3201 (2T2R) ..................................................................................................................... 36 6.2.3 RRU3203 (2T2R) ..................................................................................................................... 37 6.2.4 RRU3908 (2T2R) ..................................................................................................................... 38 6.2.5 RRU3220 (2T2R) ..................................................................................................................... 39 6.2.6 RRU3222 (2T2R) ..................................................................................................................... 40 6.2.7 RRU3808 (2T2R) ..................................................................................................................... 41

6.3 Reliability Specifications ................................................................................................................... 42 6.4 Compliance Standards ........................................................................................................................ 42

A Acronyms and Abbreviations ........................................................................................ 44




1 DBS3900 LTE Overview Long Term Evolution (LTE) is the next step in 3G technology. LTE provides various technical benefits to Radio Access Network (RAN), such as flat network structure, reduced time delay, higher user data rates, improved spectral efficiency, optimized support for packet services, and improved system capacity and coverage. Compared with the 3G network, LTE has flexible bandwidth, enhanced modulation schemes, and effective scheduling, which meets the needs of operators. In addition, LTE allows operators to use both existing and new spectral resources to provide data and voice services.

1.1 Positioning

Focusing on the concept of customer-oriented innovation, Huawei launches the distributed E-UTRAN NodeB (eNodeB) DBS3900 LTE, one of the products in Huawei's SingleBTS product portfolio. The DBS3900 LTE fully exploits Huawei platform resources and uses a variety of technologies.

The eNodeB represents the radio access equipment in the LTE system. Examples of radio access function the eNodeB performs are Radio Resource Management (RRM) functions such as air interface management, access control, mobility control, and UE resource allocation. Multiple eNodeBs constitute an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) system.




Figure 1-1 shows the eNodeB position in the network.

Figure 1-1 eNodeB in the network

eNodeB: E-UTRAN NodeB E-UTRAN: Evolved Universal Terrestrial Radio Access Network

EPC: Evolved Packet Core MME: Mobility Management Entity S-GW: Serving Gateway UE: User Equipment

1.2 Benefits

Advanced BS Platform, 2G and 3G Co-Network, RAN Sharing, and Smooth Evolution

As LTE is one feature of SingleRAN,The DBS3900 LTE achieves smooth network upgrade by sharing the hardware platform and equipment of Huawei SingleBTS products with the DBS3900 GSM, DBS3900 UMTS, DBS3900 CDMA, or DBS3900 WiMAX. This saves the cost of LTE site deployment.

The DBS3900 LTE can share the network with the 2G or 3G network, and supports handovers between the LTE and the PS domain of the GERAN/UTRAN/CDMA2000. This facilitates LTE network deployment in the existing 2G or 3G network.

The DBS3900 LTE supports RAN sharing. Different operators can share the RAN network, thus reducing Capital Expenditure (CAPEX).

The BBU3900 is the baseband unit of the DBS3900 LTE. The BBU3900 is hardware ready in terms of multi-mode applications. Therefore, boards of different modes installed in one BBU3900 are supported.

The RRU is the remote radio unit of the DBS3900 LTE. The BBU3900 and RRU can be flexibly configured on the basis of capacity and coverage requirements. Using the approach of stack installation, capacity expansion can be easily achieved through board/module stacking, rather than equipment replacement. Therefore, the cost of hardware upgrade is significantly reduced.




Large Capacity, Extensive Coverage, and High Throughput The DBS3900 LTE provides large capacity, with a single eNodeB supporting a

maximum of 3,600 users in connected state (RRC connected). The DBS3900 LTE provides extensive coverage. With features such as

multi-antenna RX diversity and uplink Inter-cell Interference Coordination (ICIC), the DBS3900 LTE supports a maximum cell radius of 100 km.

The DBS3900 LTE provides high throughput. With features such as 64QAM high-order modulation, uplink and downlink Multiple Input Multiple Output (MIMO), and ICIC, the DBS3900 LTE reaches the maximum throughput of 450 Mbit/s in the downlink and 300 Mbit/s in the uplink.

Enhanced SON Function Automatic configuration: The DBS3900 LTE can automatically obtain connection

parameters, download software, configure data, conduct tests, and upload information to the EMS. This requires less preparation for data configuration and reduces manual handling during site startup. Therefore, the OPEX can be minimized.

Automatic Neighboring Relation (ANR): The DBS3900 LTE can automatically maintain the integrity and validity of the neighboring cell list by automatically detecting missing neighboring cells and evaluating the neighboring cell relationships. This increases the handover success rate and reduces the cost of network planning and optimization.

Automatic detection of Physical Cell Identifier (PCI) conflicts, sleeping cells, and antenna faults: PCI conflicts, sleeping cells, and antenna faults are automatically detected and reported, thus reducing the workload of manual network fault location.

Comprehensive IP Transport A wide variety of transmission ports are supported, such as FE/GE electrical ports,

FE/GE optical ports, and E1/T1 ports. All-IP transport is supported. In addition, diversified network topologies are

supported, such as star, chain, and tree topologies. Multiple QoS mechanisms are adopted to guarantee the transmission QoS, thus

providing highest capacity, implementing differentiated services, and meeting QoS requirements of services.

Easy Installation and Low CAPEX for Operators

The DBS3900 LTE is compact, light, and easy to transport, and it also supports distributed installation, thus reducing large scale construction engineering and saving the CAPEX.

The BBU3900 can be installed on an indoor wall or in a standard cabinet. This reduces unnecessary installation investment. The RRU can be mounted to a pole, tower, or concrete wall. Flexible installation location and low space requirements reduce site lease costs. The RRU can be installed close to the antenna system in order to reduce the cost of feeders and power consumption.




2 Architecture 2.1 Overview

The DBS3900 LTE features a distributed architecture. The two basic modules of the DBS3900 LTE consist of the BBU3900 (BaseBand Unit) and Remote Radio Unit (RRU). The BBU3900 and RRU are inter-connected through a standardized Common Public Radio Interface (CPRI) using optical cables. Auxiliary devices of the DBS3900 LTE are the supporting parts for the BBU3900 and RRU. Auxiliary devices provide installation space for the BBU3900 and supply power to the BBU3900 and RRU. Examples of auxiliary devices of the DBS3900 LTE are the Advanced Power Module with heat-exchanger cooler (APM30H Ver.B), Integrated Battery Backup System with direct cooler (IBBS200D Ver.B) or Integrated Battery Backup System with TEC cooler (IBBS200T Ver.B), and Transmission Cabinet with heat-exchanger cooler (TMC11H Ver.B). Flexible combinations of the two basic modules and auxiliary devices can provide comprehensive site solutions that are applicable to different scenarios.

Figure 2-1 shows the architecture of the DBS3900 LTE.

Figure 2-1 Architecture of the DBS3900 LTE




2.2 BaseBand Unit

The BBU3900, a baseband unit, performs the following functions:

Provides ports for connection between the eNodeB and the MME or S-GW and processes related transmission protocol stacks.

Provides CPRI ports for communication with the RRU and processes uplink and downlink baseband signals.

Performs centralized management of the entire DBS3900 LTE in terms of Operation and Maintenance (OM) and signaling processing.

Provides the OM channel for connection to Local Maintenance Terminal (LMT) or iManager M2000.

Provides the clock port for clock synchronization, alarm monitoring port for environment monitoring, and USB port for commissioning.

2.2.1 Exterior of the BBU3900

The BBU3900 provides a compact case structure with a size of 19 inches wide, 2 U high, and 13 inches deep. Figure 2-2 shows the BBU3900.

Figure 2-2 BBU3900

2.2.2 Boards of the BBU3900

The BBU3900 is configured with the following mandatory boards and modules:

LTE Main Processing&Transmission Unit (LMPT): Manages the entire eNodeB in terms of Operation and Maintenance (OM) and signaling processing and provides clock signals for the BBU3900.

LTE BaseBand Processing Unit (LBBP): Processes the baseband signals and CPRI signals.

Fan Unit (FAN): Controls the rotation of fans and checks the temperature of the fan module. In addition, it 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 signals and eight dry contact signals.

Figure 2-3 shows the typical configuration of the BBU3900.




Figure 2-3 Typical configuration of the BBU3900

If an E1/T1 port is required, the BBU3900 must be configured with the Universal

Transmission Processing Unit (UTRP). The UTRP is optional. If the Remote Global Positioning System (RGPS) and Building Integrated Timing Supply

System (BITS) clock reference sources are supported, the BBU3900 must be configured with the Universal Satellite Clock Unit (USCU). The USCU is optional.

2.2.3 Ports on the BBU3900

Table 2-1 describes the ports on the boards of the BBU3900.

Table 2-1 Ports on the BBU3900

Module or Board

Port Quantity Connector Description

LMPT FE/GE optical port

2 SFP

Ports for transmission of traffic data on the S1 and X2 interfaces

FE/GE electrical port

2 RJ-45 Ports for transmission of traffic data on the S1 and X2 interfaces

USB port

1 USB Port for loading software

Test port

1 USB Port for test

Commissioning Ethernet port

1 RJ-45 Port for maintenance on the LMT

GPS antenna port

1 SMA Port for connection to the GPS antenna

LBBP CPRI port 6 SFP Ports between the BBU3900 and the RRU




Module or Board

Port Quantity Connector Description

UPEU Power supply socket

1 3V3 Port for 48 V DC power inputs

MON0 1 RJ-45 Ports for transmission of RS485 monitoring signals (each port transmitting one signal) and connection to external monitoring devices

MON1 1 RJ-45

EXT-ALM0 1 RJ-45 Ports for transmission of dry contact alarm signals (each port allowing four alarm inputs) and connection to external alarm devices

EXT-ALM1 1 RJ-45

UTRP E1/T1 2 DB26 Ports for transmission of eight E1s/T1s. The UTRP is configured when an E1/T1 port is required.

USCU RGPS port 2 PCB welded wiring terminal

Ports for receiving RGPS signals

BITS port 1 SMA coaxial connector

Port for receiving BITS signals

2.3 RRU The RRU is a remote radio unit, which performs modulation, demodulation, data processing, and combining and dividing for baseband signals and RF signals.

2.3.1 Exterior of the RRU

The RRU can be installed on a pole, wall, or stand. In addition, the RRU can be installed close to the antenna to shorten feeder length, reduce feeder loss, and improve system coverage. For details about the technical specifications, see chapter 6 "Technical Specifications." Figure 2-4 shows the RRU3201/RRU3808, Figure 2-5 shows the RRU3203, Figure 2-6 shows the RRU3908, Figure 2-7 shows the RRU3220, and Figure 2-8 shows the RRU3222.




Figure 2-4 RRU3201/RRU3808

Figure 2-5 RRU3203




Figure 2-6 RRU3908

Figure 2-7 RRU3220




Figure 2-8 RRU3222

2.3.2 Ports on the RRU

The RRU has a modular structure. Its external ports are located at the bottom of the module and also in the cabling cavity. Table 2-2 describes the ports on the RRU3201/RRU3203/RRU3808, Table 2-3 describes the ports on the RRU3908, Table 2-4 describes the ports on the RRU3220, and Table 2-5 describes the ports on the RRU3222.

Table 2-2 Ports on the RRU3201/RRU3203RRU3808

Port Connector Quantity Description

CPRI port

DLC

2 Ports for connection between the BBU3900 and the RRU or cascading of RRUs

RF port

DIN

2 Ports connected to antennas

Power supply socket

OT terminal

2 Ports for 48 V DC power

Remote Electrical Tilt (RET)/MON port

DB9 1 Port for connection to the RCU




Table 2-3 Ports on the RRU3908


CPRI port

DLC

2 Ports for connection between the BBU3900 and the RRU or cascading of RRUs

RF port

DIN

2 Ports connected to antennas

Port for the RF jumper between cascaded RRU modules

2W2 1 Port for RRU cascading

Alarm port DB15 1 Alarm port

Power supply socket

OT terminal

2 Ports for 48 V DC power

RET port DB9 1 Port for connection to the RCU



CPRI port DLC 2 Ports for connection between the BBU3900 and the RRU or cascading of RRUs

RF port DIN female 2 Ports connected to antennas

Alarm Port DB15 1 Alarm port

Power supply socket

Easy Power Connector 2 Ports for 48 V DC power

RET port DB9 1 Port for connection to the RCU



CPRI port DLC 2 Ports for connection between the BBU3900 and the RRU or cascading of RRUs

RF port DIN female 2 Ports connected to antennas

Power supply socket

Easy Power Connector 1 Ports for 48 V DC power





RET port QDB9 1 Port for connection to the RCU

2.4 Auxiliary Devices

The auxiliary devices provided by Huawei can be combined with the basic modules (BBU3900 and RRU) in a flexible manner, to support diverse installation scenarios. Examples of basic DBS3900 LTE auxiliary devices are APM30H Ver.B, IBBS200D Ver.B, IBBS200T Ver.B, and TMC11H Ver.B. The auxiliary devices feature compact size, easy transportation, stack installation, and battery backup power.

2.4.1 Advanced Power Module with Heat-Exchanger Cooler

The Advanced Power Module with heat-exchanger cooler (APM30H Ver.B) is a power system for outdoor applications. It provides distributed eNodeBs with power supply and backup batteries for outdoor scenarios. It also provides space for the BBU3900 and customer equipment to facilitate fast network deployment.

The APM30H Ver.B is compact, lightweight, and can be installed on the pole or ground.

Figure 2-9 shows the APM30H Ver.B.

Figure 2-9 Exterior and internal structure of the APM30H Ver.B

Table 2-6 Technical specifications of the APM30H Ver.B

Item Specification

Dimensions (H x W x D) (Base excluded)

700 mm x 600 mm x 480 mm

Typical weight (Transmission devices excluded)

91 kg




Item Specification

Working temperature 40C to +50C Solar radiation: 112010% W/m2 A heater is required when the temperature is

lower than 20C. 50C to 55C (short-term work)

2.4.2 Integrated Battery Backup System

When power backup of long duration is required, the Integrated Battery Backup System with direct cooler (IBBS200D Ver.B) or Integrated Battery Backup System with TEC cooler (IBBS200T Ver.B) can be added. The IBBS200D/T Ver.B, applicable to outdoor scenarios, provides a maximum of 48 V DC 184 Ah backup power through battery groups.

The IBBS200D Ver.B and IBBS200T Ver.B are compact, light weight, and easy to transport.

Figure 2-10 shows the IBBS200D Ver.B and IBBS200T Ver.B.

Figure 2-10 Exterior and internal structure of the IBBS200D Ver.B and IBBS200T Ver.B

Table 2-7 Technical specifications of the IBBS200D Ver.B and IBBS200T Ver.B

Item Specification (IBBS200D Ver.B)

Specification (IBBS200T Ver.B)


700 mm x 600 mm x 480 mm

700 mm x 600 mm x 480 mm

Typical weight (Batteries excluded)

50 kg 70 kg




Item Specification (IBBS200D Ver.B)

Specification (IBBS200T Ver.B)

Working temperature 40C to +45C Solar radiation:

112010% W/m2 A heater is required when

the temperature is lower than 20C.

20C to +50C

Solar radiation: 112010% W/m2

As high temperature greatly affects the lifecycle of the batteries, the IBBS200T Ver.B, which is more heat-tolerant, is recommended in high-temperature areas and the IBBS200D Ver.B can be used in other areas.

2.4.3 Transmission Cabinet with Heat-Exchanger Cooler

When more space is required for transmission equipment, the Transmission Cabinet with heat-exchanger cooler (TMC11H Ver.B) can be added. The TMC11H Ver.B is compact, lightweight, and easy to transport. The TMC11H Ver.B dissipates heat through fans.

Figure 2-11shows the TMC11H Ver.B.

Figure 2-11 Exterior and internal structure of TMC11H Ver.B

Table 2-8 Technical specifications of the TMC11H Ver.B

Item Specification


700 mm x 600 mm x 480 mm




Item Specification

Weight of the cabinet (Transmission devices and the BBU excluded)

57 kg

Working temperature 40C to +50C Solar radiation: 112010% W/m2 A heater is required when the temperature is

lower than 20C. 50C to 55C (short-term work)




3 Application Scenarios 3.1 Overview

With continuous capacity expansion of the mobile network, site selection for the base station has turned into a bottleneck during network deployment. Site selection becomes increasingly complex to implement and requires additional investment in network deployment.

The DBS3900 LTE is characterized by its small footprint, easy installation, and low power consumption. Therefore, the DBS3900 LTE can be easily installed in a spare space at an existing site. The RRU is also compact and light. It can be installed close to the antenna to reduce feeder loss and to improve system coverage. With these characteristics, the DBS3900 LTE fully addresses operators' concern over site acquisition and reduces network deployment time. Therefore, the DBS3900 LTE enables operators to efficiently deploy a high-performance LTE network with a low Total Cost of Ownership (TCO) by minimizing the investment in electricity, space, and manpower.

The DBS3900 LTE has flexible applications to meet the requirement of fast network deployment in different scenarios.

3.2 BBU+RRU+APM30H Ver.B If an outdoor site for the DBS3900 LTE has only a 220 V AC power supply available, the integrated configuration of the BBU+RRU+APM30H Ver.B can be used.

In this scenario, the BBU3900 and transmission equipment are installed in the APM30H Ver.B for protection. The RRU can be installed flexibly. The BBU3900, RRU, and auxiliary devices can be combined in many ways to meet different requirements for power distribution, power backup, and expansion of transmission equipment space. Figure 3-1 shows the application scenario.




Figure 3-1 Application scenario of BBU+RRU+APM30H Ver.B

This application scenario has the following features:

The APM30H Ver.B can provide a maximum of 7 U space for installing equipment.

The APM30H Ver.B provides installation space and outdoor protection for the BBU3900 and supplies 48 V DC power to the BBU3900 and RRU. In addition, the APM30H Ver.B provides battery backup for short-term use, manages batteries, and performs surge protection.

The RRU can be installed on a wall, pole, or tower.

3.3 BBU+RRU+TMC11H Ver.B

If an outdoor site for the DBS3900 LTE has only a 48 V DC power supply available and a larger space for equipment is required, the BBU+RRU+TMC11H Ver.B solution can be adopted.

The BBU3900 and transmission equipment are installed in the TMC11H Ver.B, which provides a large installation space. The BBU3900, RRU, and auxiliary devices can be combined in many ways to meet different requirements for power distribution, power backup, and expansion of transmission equipment space. Figure 3-2 shows the application scenario.




Figure 3-2 Application scenario of BBU+RRU+TMC11H Ver.B


The TMC11H Ver.B provides a maximum of 7 U space for installing transmission equipment.

The TMC11H Ver.B provides installation space and outdoor protection for the BBU3900 and supplies 48 V DC power to the BBU3900 and RRU.


3.4 BBU+RRU+19-Inch Cabinet

If an indoor site for the DBS3900 LTE has only a 48 V DC power supply available and a new backup power supply system is required, the BBU3900 can be installed in a standard cabinet, which provides a 19-inch-wide and 2 U-high space. This is the BBU+RRU+19-inch cabinet solution.

The BBU3900 can be installed in an existing 19-inch rack or cabinet to share the power supply system and transmission system with the existing network. Figure 3-3 shows the application scenario.




Figure 3-3 Application scenario of BBU+RRU+19-inch cabinet

3.5 BBU+RRU+Indoor Wall

If an indoor site for the DBS3900 LTE has only a 48 V DC power supply available, the BBU+RRU+indoor wall solution can be adopted.

The BBU3900 is installed on the indoor wall. Therefore, the BBU occupies a small space and uses the existing power supply system and transmission system. Figure 3-4 shows the application scenario.




Figure 3-4 Application scenario of BBU+RRU+indoor wall

3.6 BBU+RRU+ICR

If an indoor site for the DBS3900 LTE has a 220 V AC or 48 V DC power supply available and a new backup power supply is required, the BBU3900 can be installed in an Indoor Centralized Rack (ICR), which provides a 19-inch-wide and 3 U-high space. The RRU can be installed in an RF subrack. This is the BBU+RRU+ICR solution.

A maximum of six RRUs can be installed in a centralized manner. The BBU3900 can be installed in an existing ICR to share the power supply system and the transmission system in the existing network. Figure 3-5 shows the application scenario.




Figure 3-5 Application scenario of BBU+RRU+ICR

3.7 BBU+RRU+IMB03

If an indoor site for the DBS3900 LTE has a 220 V AC or 48 V DC power supply available, the BBU3900 can be installed in an Indoor Mini Box (IMB03), which provides a 19-inch-wide and 3 U-high space. This is the BBU+RRU+IMB03 solution.

As shown in Figure 3-6, the BBU3900 and power equipment are installed in the IMB03, which provides indoor protection.




Figure 3-6 Application scenario of BBU+RRU +IMB03


If the input power is a 220 V AC, the IMB03 houses the BBU3900 and AC/DC power equipment. If the input power is a 48 V DC, the IMB03 houses the BBU3900 and DCDU-03B.

The IMB03 can be installed on a wall or stand. The RRU can be installed on a wall, pole, or tower.

3.8 BBU+RRU+OMB

If an outdoor site for the DBS3900 LTE has a 220 V AC or 48 V DC power supply available, the BBU3900 can be installed in an Outdoor Mini Box (OMB). This is the BBU+RRU+OMB solution.

As shown in Figure 3-7, the BBU3900 and power equipment are installed in the OMB, which provides indoor protection.




Figure 3-7 Application scenario of BBU+RRU+OMB


If the input power is a 220 V AC, the OMB houses the BBU3900 and AC/DC power equipment. If the input power is a 48 V DC, the OMB houses the BBU3900 and DCDU.

The OMB can be installed on a wall or placed in various scenarios with limited installation space.





4 Configuration This chapter describes the typical configurations and maximum configurations of the DBS3900 LTE.

4.1 Typical Configuration

Table 4-1 describes the typical configurations of the DBS3900, with different bandwidths, MIMO configurations, and site configurations.

Table 4-1 Typical configurations of the DBS3900

Configuration MIMO LBBPP RRU

3 x 5 MHz/10 MHz 4x2 MIMO 1 LBBP 6 RRUs




LBBP in this document represents LBBPc. For details about the configuration of an

LBBPb, see the corresponding configuration manual. The specific RRU model is determined by the supported frequency band.

4.2 Maximum Configuration Table 4-2 describes the maximum configurations of the DBS3900 with different bandwidths, MIMO configurations, and site configurations.




Table 4-2 Maximum configurations of the DBS3900

Configuration MIMO LBBP RRU

6 x 1.4 MHz/3 MHz/5 MHz/10 MHz

4x2 MIMO 2 LBBPs 12 RRUs

6 x 15 MHz/20 MHz 4x2 MIMO 6 LBBPs 12 RRUs

12 x 1.4 MHz/3 MHz/5 MHz/10 MHz

2x2 MIMO 2 LBBPs 12 RRUs

12 x 15 MHz/20 MHz 2x2 MIMO 4 LBBPs 12 RRUs

The specific RRU model is determined by the supported frequency band.




5 Operation and Maintenance 5.1 Overview

The DBS3900 LTE, which has the same OM functions as the eNodeB, is one of the eNodeB product portfolios launched by Huawei. The eNodeB supports the OM system that is based on the Man Machine Language (MML) and the Graphic User Interface (GUI). The OM system enables a hardware-independent OM mechanism and provides powerful OM functions to meet various OM requirements.

The eNodeB supports local maintenance and remote maintenance. In the OM system, the maintenance terminal supports the Virtual Local Area Network (VLAN), and can access the eNodeB through the Intranet or Internet, which makes maintenance more convenient and flexible.

5.2 OM System

Figure 5-1 shows the OM system of the eNodeB.




Figure 5-1 OM system

LMT

iManager M2000

eNodeB

IP Network

LMT

The OM system consists of the Local Maintenance Terminal (LMT) and the iManager M2000 Mobile Element Management System (M2000). The LMT is used to maintain a single eNodeB. To perform maintenance operations, you can connect the LMT to the eNodeB through an Ethernet cable (local maintenance) or IP network (remote maintenance). The M2000 is used to remotely maintain multiple eNodeBs of different software versions.

The functions of the OM system are as follows:

The LMT performs functions such as data configuration, alarm monitoring, commissioning, and software upgrade. The LMT supports both MML and GUI modes.

The M2000 performs functions such as data configuration, alarm monitoring, performance monitoring, and software upgrade. The M2000 supports both MML and GUI modes.

5.3 Benefits

5.3.1 Configuration Management

The configuration management of the eNodeB features easy accessibility, high reliability, and excellent scalability.

Easy accessibility The OM system supports a user-friendly GUI mode. The eNodeB provides configuration forms for the common configuration

scenarios, such as eNodeB startup, capacity expansion, and eNodeB replacement. In addition, the eNodeB offers scenario-specific configuration




wizards in GUI mode. This scenario-oriented design helps to minimize the requirement for the user to manually enter the configuration information, and speeds up the deployment.

Huawei also provides the networking planning tool iPlan, which is used to import data to the form for initial configuration, thus lowering efforts needed for network planners and network optimization engineers.

High reliability The eNodeB provides data configuration, query, export, backup, and

restoration functions. At the same time, it can synchronize data with the M2000.

The eNodeB updates all the configuration commands delivered to the eNodeB and checks the configuration restrictions, thus avoiding impact of maloperations.

The CME supports configuration rollback in batches. Therefore, when the user discovers abnormal running or malfunctions of the system after the configuration, the user can run a rollback command to restore data.

Excellent scalability Configuration management through the northbound network management

system (NMS) is supported. The user can add, remove, or modify eNodeB configurations through MML

commands. The user can use MML commands and the iSStar of the M2000 to customize

functions of the M2000, for example, to customize troubleshooting procedures.

5.3.2 Fault Management

The fault management of the eNodeB provides easy fault localization, high reliability, and various tracing and monitoring methods.

Easy fault localization Alarm handling suggestions are offered for every alarm, which helps the user

to locate and rectify the fault. For localization methods, alarm handling involves related maintenance and

required tools. For KPI level service failures, the eNodeB offers methods to rectify faults,

which helps the user to locate and solve the problem quickly and accurately. The eNodeB supports the alarm correlation function. For all the faults caused

by a radical cause, the eNodeB reports only one radical alarm and its eventual impact on the system. The user can easily locate the radical cause of the alarm through the alarm correlation, and then rectify the fault.

High reliability Fault detection is comprehensive and accurate. The eNodeB provides the fault

detection function for the hardware, software, antenna, transmission, cell, and environment, in which the fault detection for the environment is performed in terms of door status control, infrared, smoke, water damage, and temperature. In addition, the system allows customization of external alarms.

Fault isolation and self-healing of the eNodeB also ensure that the local failure does not affect the other parts of the system. In addition, the eNodeB




can set up the cell again with degraded specifications to minimize the impact of the failure on services.

Various tracing and monitoring methods The eNodeB supports various tracing functions to check the compatibility of

interfaces. The tracing functions are to trace the standard signaling of one UE in the entire network, in a cell, or on standard interfaces. The user can trace operations of the eNodeB on the LMT/M2000 in real time, or browse and analyze tracing results later.

The eNodeB supports the real-time performance monitoring in GUI mode, thus facilitating the user to locate performance failures speedily. The user can monitor the transmission quality of user-level or cell-level air interface, air interface performance and interference, and quality of transmission links in real time.

The eNodeB supports one-click collection and upload of system logs. When the user fails to locate or rectify faults, this function helps the user to collect the detailed field information. Then the user can provide the fault information to Huawei Customer Service Center for more efficient troubleshooting.

5.3.3 Performance Management

The performance management features multiple monitoring and reporting periods and appropriate measurement point allocation, which meets requirements in different scenarios.

Multiple monitoring and reporting periods The eNodeB can collect performance counters every 15 or 60 minutes. The

default value is 60 minutes. The eNodeB supports real-time monitoring of KPIs for a duration of 1 minute.

Appropriate measurement point allocation The eNodeB supports performance measurement of system-level or cell-level,

of neighboring cells, on interfaces, and of device usage, which helps the user to locate faults.

5.3.4 Security Management

The security management provides network-level and user-level security services.

The eNodeB supports the following services to ensure the security, integrity, and availability of the system:

Encryption of key information of the user User account management and authentication Control over access rights of the user Support of security protocols such as FTP Over SSL (FTPS), Secure Socket

Layer (SSL), and IP Security (IPSec) Automatic record of the account usage information Security certificate




5.3.5 Software Management

The software management of the eNodeB features easy accessibility, high efficiency, and small impact on services during software upgrade.

Easy accessibility The user can perform health check on the eNodeB before and after an upgrade,

back up, download, and activate the software step by step through the upgrade wizard of the M2000. In addition, this function facilitates the user to query the upgrade status and result.

The eNodeB automatically upgrades the configuration data during upgrade. Therefore, the user need not prepare the configuration data.

High efficiency The eNodeB supports remote upgrade and batch upgrade. The eNodeB supports upgrade strategy management. After the upgrade

strategy is set, the eNodeB can perform software upgrade automatically. Small impact on services during software upgrade

The eNodeB supports fast upgrade rollback. The user can perform version rollback through one command, thus reducing the impact of upgrade failures on the system.

The eNodeB supports the management of patch packages. The eNodeB supports hot patches, so that software corrections can be handled without interrupting system operation.

5.3.6 Deployment Management

The eNodeB deployment solutions consist of automatic identification of the eNodeB and initial configuration through a USB disk. In addition, local commissioning is not required. All these functions contribute to the ease of the deployment work and shortening of work time. The field engineer only needs to install the hardware during site deployment. No PC is required.

The automatic eNodeB identification function of GPS binding and unique ID binding is supported.

The user can download the software and data of the eNodeB through a USB disk, thus saving a lot of time especially when the transmission bandwidth to the NE and the NMS is limited.

Because local commissioning is not required, the software commissioning is performed in the network management center instead of on site. The user can check and accept the site deployment in the network management center.

5.3.7 Equipment Management

The eNodeB offers several user-friendly management functions.

Multiple functions The eNodeB provides functions such as fault detection, data configuration,

status management, and inventory reporting for the main equipment, mechanical and electric equipment, GPS, and the RET antenna.

Easy accessibility




The eNodeB can report the inventory to the M2000 automatically.

5.3.8 Inventory Management

The inventory management function offers various, accurate, and real-time management services for the user inventory.

Various services The inventory management function helps to provide the inventory

information of the eNodeB, such as hardware, physical ports, transmission resources, system configuration, and software version.

Accurate and real-time services The eNodeB collects the inventory information periodically. The eNodeB

synchronizes the inventory information on a daily basis.




6 Technical Specifications The technical specifications for the DBS3900 include the capacity, equipment specifications, and reliability and compliance standards.

6.1 Capacity Specifications

Table 6-1 describes the capacity specifications of the DBS3900.

Table 6-1 Capacity specifications

Item Specification

Maximum number of cells

4x2 MIMO: 6 cells (5 MHz/10 MHz/15 MHz/20 MHz) 2x2 MIMO: 12 cells (5 MHz/10 MHz/15 MHz/20 MHz)

Maximum throughput per cell (20 MHz)

Downlink rate at the MAC layer: 150 Mbit/s Uplink rate at the MAC layer: 70 Mbit/s

Maximum throughput per eNodeB

Downlink: 450 Mbit/s Uplink: 300 Mbit/s

Maximum number of UEs in RRC-connected states in an eNodeB

1 LBBP configured (bandwidth of 1.4 MHz): 1008 1 LBBP configured (bandwidth of 3 MHz/5 MHz/10

MHz/15 MHz/20 MHz): 1800 More than 1 LBBP configured (bandwidth of 1.4 MHz):

2016 More than 1 LBBP configured (bandwidth of 3 MHz/5

MHz/10 MHz/15 MHz/20 MHz): 3600 DRB Maximum number of DRBs supported per user is 8.




6.2 Equipment Specifications

6.2.1 BBU3900

Table 6-2 describes the technical specifications of the BBU3900.

Table 6-2 Technical specifications of the BBU3900

Item Specification

Dimensions (H x W x D)

86 mm x 442 mm x 310 mm

Weight 12 kg (full configuration) Input power 48 V DC; voltage range: 38.4 V DC to 57 V DC

Temperature 20C to +50C (long-term work) 50C to 55C (short-term work)

Relative humidity 5% RH to 95% RH

Air pressure 70 kPa to 106 kPa

IP rating IP20

Clock synchronization Ethernet (ITU-T G.8261), GPS, IEEE1588v2,clock over IP,OCXO free oscillation,1PPS,E1/T1

CPRI Supporting six CPRI ports per LBBP. The standard CPRI 4.1 port is supported and is

backward compatible with the CPRI 3.0 port.

Transmission port Two FE/GE electrical ports Or two FE/GE optical ports Or one FE/GE electrical port and one FE/GE optical

port

6.2.2 RRU3201 (2T2R)

Table 6-3 describes the technical specifications of the RRU3201.

Table 6-3 Technical specifications of the RRU3201

Item Specification

Duplex mode FDD




Item Specification

Frequency band and bandwidth

Frequency band RX band (MHz) TX band (MHz) Supporting bandwidth (MHz)

700 MHz (Band 13)

777 to 787 746 to 756 1.4/3/5/10/15/20

2.6 GHz (Band 7)

2500 to 2570 Band C: 2500

to 2520 Band D: 2510

to 2560 Band E: 2550

to 2570

2620 to 2690 Band C: 2620

to 2640 Band D: 2630

to 2680 Band E: 2670

to 2690

5/10/15/20


480 mm x 270 mm x 140 mm (18 L, without the housing) 485 mm x 285 mm x 170 mm (23.5 L, with the housing)

Weight 17.5 kg (without the housing) 19 kg (with the housing)

Input power 48 V DC (36 V DC to 57 V DC) Maximum transmit power

2 x 40 W

Temperature 40C to +50C (with solar radiation of 1,120 W/m)

40C to +55C (without solar radiation) Relative humidity

5% RH to 100% RH


IP rating IP65

6.2.3 RRU3203 (2T2R)



Item Specification

Duplex mode FDD




Item Specification


Frequency band RX band (MHz) TX band (MHz)

Supporting bandwidth (MHz)

700 MHz (Band 12)

698 to 716 728 to 746 1.4/3/5/10/15


480 mm x 356 mm x 140 mm (24 L without the housing) 485 mm x 381 mm x 170 mm (31.4 L with the housing)

Weight 22 kg (without the housing) 24 kg (with the housing)


2 x 40 W



5% RH to 100% RH


IP rating IP65

6.2.4 RRU3908 (2T2R)



Item Specification

Duplex mode FDD




900 MHz (Band 8)

880 to 915 925 to 960 1.4/3/5/10/15/20




Item Specification

1800 MHz (Band 3)

1710 to 1785 1710 to 1755 1740 to 1785

1805 to 1880 1805 to

1850 1835 to

1880

5/10/20



Weight 24 kg (without the housing) 26 kg (with the housing)


1800 MHz: 2 x 30 W 900 MHz: 2 x 40 W



5% RH to 100% RH


IP rating IP65

6.2.5 RRU3220 (2T2R)



Item Specification

Duplex mode FDD




DD 800 MHz 832 to 862 832 to 847 842 to 862

791 to 821 791 to 806 801 to 821

5/10/15/20


400 mm x 220 mm x 140 mm (12 L without the housing) 400 mm x 240 mm x 160 mm (15 L with the housing)




Item Specification



2 x 40 W



5% RH to 100% RH


IP rating IP65

6.2.6 RRU3222 (2T2R)



Item Specification

Duplex mode FDD




DD 800 MHz 832 to 862 791 to 821 5/10/15/20


480 mm x 270 mm x 140 mm (18 L without the housing) 485 mm x 300 mm x 170 mm (24 L with the housing)



2 x 40 W




Item Specification



5% RH to 100% RH


IP rating IP65

6.2.7 RRU3808 (2T2R)



Item Specification

Duplex mode FDD




AWS (Band 4) 1710 to 1755 2110 to 2155 1.4/3/5/10/15/20

2.1 GHz (Band 1)

1920 to 1980 2110 to 2170 5/10/15/20





2 x 40 W



5% RH to 100% RH


IP rating IP65




6.3 Reliability Specifications

Table 6-9 describes the reliability specifications of the DBS3900.

Table 6-9 Reliability specifications

Item Specification

System availability 99.999%

MTBF 155,000 hours

MTTR 1 hour

System restarting time < 180s

6.4 Compliance Standards Table 6-10 describes the compliance standards of the DBS3900.

Table 6-10 Compliance standards

Item Specification

Storage ETSI EN300019-1-1 V2.1.4 (2003-04) class1.2 "Weather-protected, not temperature-controlled storage locations"

Transportation

ETSI EN300019-1-2 V2.1.4 (2003-04) class 2.3 "Public transportation"

Anti-seismic performance

IEC 60068-2-57 (1999-11) Environmental testing Part 2-57: Tests Test Ff: Vibration Time-history method YD5083-99: Interim Provisions for Test of Anti-seismic Performances of Telecommunications Equipment (Telecommunication Industry Standard of the People's Republic of China)




Item Specification

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 The eNodeB is Conformite Europeenne (CE) certified.




A Acronyms and Abbreviations A

AMC Automatic Modulation Control

ANR Automatic Neighboring Relation

APM Advanced Power Module

B

BBU BaseBand Unit

BITS Building Integrated Timing Supply System

C

CAPEX Capital Expenditure

CDMA Code Division Multiple Access

CME Configuration Management Express

CPRI Common Public Radio Interface

D

DBS Distribution Base Station

DRB Data radio bearer

E

E-UTRAN Evolved UMTS Terrestrial Radio Access Network

EPC Evolved Packet Core




F

FAN Fan Unit

FE Fast Ethernet

G

GE Gigabit Ethernet

GPS Global Positioning System

GSM Global System for Mobile communications

H

HRPD High Rate Packet Data

I

IBBS Integrated Battery Backup System

ICIC Inter-cell Interference Coordination

IP Internet Protocol

L

LBBP LTE BaseBand Processing Unit

LMPT LTE Main Processing&Transmission Unit

LMT Local Maintenance Terminal

LTE Long Term Evolution

M

MIMO Multiple Input Multiple Output

MRO Mobility Robust Optimization

MME Mobility Management Entity

MTBF Mean Time Between Failures

MTTR Mean Time To Recovery

O

OM Operation and Maintenance




OMB Outdoor Mini Box

OPEX Operating Expenditure

P

P-GW Packet Data Network Gateway

PCI Physical Cell Identifier

R

RGPS Remote Global Positioning System

RCU Remote Control Unit

RET Remote Electrical Tilt

RRM Radio Resource Management

RRU Remote Radio Unit

S

S-GW Serving Gateway

SON Self-Organizing Network

T

TCO Total Cost of Ownership

TMC Transmission Cabinet

TA Tracking Area

U

UE User Equipment

UMTS Universal Mobile Telecommunications System

UPEU Universal Power and Environment Interface Unit

USB Universal Serial Bus

UTRA UMTS Terrestrial Radio Access

UTRAN UMTS Terrestrial Radio Access Network

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