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Product Description
DBS3900
V300R008
Issue
04
Date
2008-06-11
HUAWEI TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei DBS3900 V300R008

  • Page 1 Product Description DBS3900 V300R008 Issue Date 2008-06-11 HUAWEI TECHNOLOGIES CO., LTD.
  • Page 2 DBS3900 V300R008 Product Description Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. Please feel free to contact our local office or company headquarters. Huawei Technologies Co., Ltd. Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China Website: http://www.huawei.com...
  • Page 3 DBS3900 V300R008 Product Description About This Document Author Prepared by Date 2008-04-23 Ji Li Liu Jianyun, Ji Fei , Huang 2008-04-24 Reviewed by Date Xianlu, Tian Xiangyu Feng Baoshun 2008-04-25 Approved by Date Summary This document describes the distributed base station in terms of features, system structure, functions, O&M, reliability, and technical specifications.
  • Page 4 DBS3900 V300R008 Product Description Chapter Content 8. Installation This chapter introduces the installation of the DBS3900. A Standards The appendix lists the technical standards complied by the DBS3900. B Glossary The appendix lists the glossary involved in this manual. C Acronyms and...
  • Page 5 DBS3900 V300R008 Product Description History Issue Description Issue Date Author Approved by Initial commerial 2008-03-21 Ji Li Feng release Baoshun Second commerial Feng 2008-04-25 Ji Li release Baoshun Third commerial Feng 2008-05-20 Li Haixia release Baoshun Forth commerial 2008-06-11 Li Haixia...
  • Page 6: Table Of Contents

    DBS3900 V300R008 Product Description Contents 1 Introduction to DBS3900 ....................9 1.1 Solutions of the DBS3900 ........................ 9 1.1.1 Basic Functional Modules......................9 1.1.2 Scenarios for the DBS3900 ....................11 1.2 Advantages of the DBS3900 ......................11 1.2.1 Fast Network Deployment ..................... 12 1.2.2 Low Costs ..........................
  • Page 7 DBS3900 V300R008 Product Description 3.2.2 High-Speed Interface Module ....................20 3.2.3 Signaling Processing Unit...................... 20 3.2.4 PA ............................21 3.2.5 Dual Duplexer ........................21 3.2.6 LNA............................21 4 Services and Features....................22 4.1 Services............................22 4.2 Features ............................22 5 Operation and Maintenance..................25 5.1 O&M System ..........................
  • Page 8 DBS3900 V300R008 Product Description 7.8 Ports ............................... 35 7.8.1 Transmission Ports on the BBU..................... 35 7.8.2 External Alarm Ports on the BBU ..................35 7.8.3 Other External Ports on the BBU................... 36 7.8.4 Transmission Port on the RRU ....................36 7.8.5 External Alarm Ports on the RRU ..................
  • Page 9: Introduction To Dbs3900

    The DBS3900 is a distributed base station which adopts the unified BTS platform developed by Huawei. As a GSM BTS, the DBS3900 mainly consists of the baseband control unit (BBU) and remote radio unit (RRU). The baseband control unit is the BBU3900.
  • Page 10 DBS3900 V300R008 Product Description Figure 1-1 BBU3900 Additional cards can be inserted into the BBU3900 to provide functions such as environment monitoring and Abis bypass, as well as GPRS clock signals. The BBU3900 requires very small floor space, and it is easy to install. It provides comprehensive functions and consumes a small amount of power.
  • Page 11: Scenarios For The Dbs3900

    DBS3900 V300R008 Product Description Figure 1-3 RRU3004 rack The compact RRU3004 is light in weight and easy to install. The RRU3004 rack can be directly mounted on the metal pole, tower, stand, or wall. 1.1.2 Scenarios for the DBS3900 The RRU3004 and BBU3900 can be flexibly combined to meet different application requirements.
  • Page 12: Fast Network Deployment

    DBS3900 V300R008 Product Description 1.2.1 Fast Network Deployment The separation of the BBU and RRU, the compact design, and the distributed installation allow you to mount the BBU and RRU in available space. You do not have to care much about load capacity or extra installation space.
  • Page 13: Features Of The Dbs3900

    DBS3900 V300R008 Product Description Features of the DBS3900 2.1 Coverage Capability The DBS3900 has the following benefits in terms of coverage: The RRU3004 supports the cascading of three RRU modules. One RRU module can be placed 40 km away from the BBU.
  • Page 14: Clock And Synchronization

    DBS3900 V300R008 Product Description 2.4 Clock and Synchronization When the synchronization clock operates in free-run mode, the system can operate normally for at less than 7 days in succession. Software synchronization mode is supported. Phase-locked, fast pull-in, and holdover functions, as well as free run mode, are supported.
  • Page 15: Installation

    DBS3900 V300R008 Product Description 2.7 Installation 2.7.1 Installation of the BBU The BBU has the following installation features: The compact BBU is single equipment that is 19 inches in width and 2 U in height. It is small and light, and thus has low requirements for floor space, bearing capacity, and installation costs and complexity.
  • Page 16: Operation And Maintenance

    DBS3900 V300R008 Product Description The RRU has a sealed integrated structure. It is waterproof and dustproof in compliance with the International Protection standard (IP65). The protection against moisture, mould, and salt fog damage meets Class 1. The sealed integrated structure also prevents the RRU from solar radiation and adverse environments.
  • Page 17 DBS3900 V300R008 Product Description The DBS3900 adopts the unified BTS platform developed by Huawei Wireless and enables the smooth evolution from 2G to 3G. Issue 04 (2008-06-11) Commercial in Confidence Page 17 of 46...
  • Page 18: System Architecture

    DBS3900 V300R008 Product Description System Architecture 3.1 Functional Architecture of the BBU 3.1.1 Functional Modules Figure 3-1 shows the working principle of the BBU. Figure 3-1 Working principle of the BBU Boolean alarm input Monitoring unit Environment monitoring bus Site...
  • Page 19: Bts Interface Unit

    DBS3900 V300R008 Product Description Clock Unit Monitoring Unit The BBU also consists of the fan module and power module. 3.1.2 BTS Interface Unit The BTS interface unit performs the following functions: Connects the BTS to the BSC Exchanges timeslot data between the E1 links and the DBUS Synchronizes the lower-level clock with the upper-level clock 3.1.3 Central Processing Unit...
  • Page 20: Functional Architecture Of The Rru

    DBS3900 V300R008 Product Description 3.2 Functional Architecture of the RRU 3.2.1 Functional Modules Figure 3-2 shows the working principle of the RRU3004. Figure 3-2 Working principle of the RRU3004 RRU3004 Signal Carrier detection Control processing module Processin g unit for...
  • Page 21: Dual Duplexer

    DBS3900 V300R008 Product Description The uplink RX channel performs the following functions: Converts the RX signals down to intermediate frequency signals. Amplifies the intermediate frequency signals and demodulates IQ signals. Performs analog-to-digital conversion through the ADC. Samples digital signals. Filters signals.
  • Page 22: Services And Features

    DBS3900 V300R008 Product Description Services and Features 4.1 Services Table 4-1 lists the services provided by the DBS3900. Table 4-1 DBS3900 service list Service Abbreviation Description Speech service Enhanced full rate speech service Full rate speech service Half rate speech service...
  • Page 23 DBS3900 V300R008 Product Description Handover The DBS3900 support the following handovers: Synchronous handover Asynchronous handover Dual-band handover Frequency Hopping The DBS3900 support the following hopping mechanisms: Baseband hopping RF hopping Flexible Allocation of Resources Dynamic MAIO Dynamic PBT Antenna hopping The DBS3900 support antenna hopping.
  • Page 24 DBS3900 V300R008 Product Description Location Services The DBS3900 supports the location services based on Cell ID. Remote Electrical Tilt (RET) Antenna The DBS3900 support RET antenna, which facilitates the adjusting of the antenna tilt, and thus facilitates the optimization of the network coverage.
  • Page 25: Operation And Maintenance

    DBS3900 V300R008 Product Description Operation and Maintenance 5.1 O&M System The RRU3004 and BBU3900 support provide the O&M system based on MMI, BIN Web UI, SNMP, and CLI. Figure 5-1 shows the topology of the O&M subsystem. Figure 5-1 Topology of the O&M subsystem...
  • Page 26: O&M Functions

    DBS3900 V300R008 Product Description 5.2 O&M Functions The OM system of the DBS3900 places great emphasis on your requirements for operation and maintenance and offers powerful functions in the following aspects 5.2.1 Security Management The DBS3900 authorizes the maintenance personnel with hierarchical operation rights to ensure the system security.
  • Page 27: Performance Management

    DBS3900 V300R008 Product Description The environment monitoring system provides customized solutions regarding door control, infrared, smoke, water immersion, humidity, and temperature. 5.2.7 Performance Management Performance management involves the following features: Measures and reports performance counters based on services requirements Monitors the performance of the internal and external telecommunications...
  • Page 28: Reliability

    DBS3900 V300R008 Product Description Reliability 6.1 System Reliability The system reliability of the BBU and RRU involves the following aspects: The RRU supports soft reset. In a chain or tree topology, the reset of an upper-level RRU does not affect its lower-level RRU when the reset is caused by reasons other than power-off.
  • Page 29: Hardware Reliability

    DBS3900 V300R008 Product Description Figure 6-2 Ring topology of BBUs and RRUs 6.2 Hardware Reliability 6.2.1 Hardware Reliability of the BBU The BBU has the following features in terms of hardware reliability: The BBU has built-in N+1 redundant fans. It can automatically adjust the speed of the fans if the heat dissipation of the system is guaranteed.
  • Page 30: Hardware Reliability Of The Rru

    DBS3900 V300R008 Product Description 6.2.2 Hardware Reliability of the RRU Reliability Design for Power Supply The RRU3004 operates within a wide voltage range. In DC power input, the RRU can operate in the range –36 V DC to –57 V DC, which means that the system can run undamaged even the peak voltage reaches –57 V DC.
  • Page 31: Saving Operation Log Information

    DBS3900 V300R008 Product Description 6.3.5 Saving Operation Log Information The system records user operations on a regular basis and saves the information as operation logs. The operation logs help you locate problems and restore data. 6.3.6 Backup The system supports backup of the transmission links and the main control board.
  • Page 32: Technical Specifications

    DBS3900 V300R008 Product Description Technical Specifications 7.1 Radio Specifications Table 7-1 lists the operating frequency bands of the RRU3004. Table 7-1 Operating frequency bands of the RRU3004 Frequency Band Receive Band Transmit Band GSM 900 890–915 MHz 935–960 MHz E-GSM 900 880–915 MHz...
  • Page 33: Receive Sensitivity

    DBS3900 V300R008 Product Description 7.3 Receive Sensitivity Table 7-3 lists the static receive sensitivity of the RRU. Table 7-3 Receive sensitivity of the RRU Receive Diversity Mode Static Receive Sensitivity Single antenna –113 dBm (typical value) Dual-antenna –116 dBm (typical value) Four-antenna –118.5 dBm (typical value)
  • Page 34: Power Supply

    DBS3900 V300R008 Product Description 7.6 Power Supply 7.6.1 Power Input of the BBU Table 7-6 lists the power input for the BBU. Table 7-6 Power input for the BBU Power Type Nominal Value Allowed Range –48 V DC –48 V DC –38.4 V DC to –57 V DC...
  • Page 35: Ports

    DBS3900 V300R008 Product Description Site Configuration TOC (W) Work Mode Typical Power Consumption (W) S2/2/2(1800M) No combiner S4/4/4(1800M) No combiner The typical power consumption refers to the measurement value when the traffic is 30%. 7.8 Ports 7.8.1 Transmission Ports on the BBU Table 7-9 lists the transmission ports onthe BBU.
  • Page 36: Other External Ports On The Bbu

    DBS3900 V300R008 Product Description Table 7-11 lists the specifications for the external alarm ports of the BBU. Table 7-11 Specifications for the external alarm ports on the BBU Parameter Parameter External alarm input Closed resistance port Open resistance 7.8.3 Other External Ports on the BBU Table 7-12 lists the other external ports on the BBU.
  • Page 37: Other External Ports On The Rru

    DBS3900 V300R008 Product Description Table 7-14 External alarm port on the RRU RRU Type Port Quantity Connector RRU3004 Port providing DB15 connector access of two dry contact alarms 7.8.6 Other External Ports on the RRU Table 7-15 lists the other external ports on the RRU.
  • Page 38: Lightning Protection Specifications For The Rru

    DBS3900 V300R008 Product Description Application Lightning Protection Mode Surge Current Differential mode (E1 coaxial 3 kA lightning protection box) Common mode (E1 coaxial lightning 5 kA protection box) Differential mode (twisted pair 5 kA lightning protection box) Common mode(twisted pair...
  • Page 39: Operating Environment

    DBS3900 V300R008 Product Description 7.10 Operating Environment 7.10.1 Operating Environment of the BBU Table 7-18 lists the operating environment of the BBU. Table 7-18 Operating environment of the BBU Parameter Specification Temperature -20 to +55 Relative humidity 5% to 95% 7.10.2 Operating Environment of the RRU...
  • Page 40: Acoustic Noise

    DBS3900 V300R008 Product Description 7.12 Acoustic Noise The Sound Power Level (SPL) of acoustic noise generated by the BBU is lower than 45 dBA as stipulated in ETS300 753. The RRU works silently. 7.13 Storage Environment The DBS3900 comply with the following standard in terms of storage environment: ETSI EN 300 019-1-1 V2.1.4 (2003-04) Class 1.2: “Weatherprotected, not...
  • Page 41: Installation

    The external cabling ports of the BBU and RRU are located on the front panel and at the bottom with silkscreen attached. This makes cabling easy. Huawei provides all necessary auxiliary devices for the DBS3900, such as AFB, outdoor SPD, APM, and EPS4815A power conversion module This package solution covers the power distribution, lightning protection, transmission cabling, installation of transmission equipment, and power backup for the DBS3900.
  • Page 42: A Technical Standards

    DBS3900 V300R008 Product Description Technical Standards A.1 EMC (Electromagnetic Compatibility) Standards The EMC standards are as follows: R&Directive 99/5/EC 3GPP TS 25.113 V4.4.0 (2002-12) ETSI EN 301 489-1 V1.5.1 (2004-11) ETSI EN 301 908-1 V2.2.1 (2003-10) ITU-T SM 329-10(2003) FCC PART1 A.2 Acoustic Noise Standards...
  • Page 43: Anti-Seismic Performance

    DBS3900 V300R008 Product Description ETSI EN 300019-1-3 V2.2.2 (2004-07) Class 3.1: "Temperature-controlled − locations" The RRU complies with the following standard in terms of the working environment: 3G TS25.141 V3.0.0 − ETSI EN 300019-1-4 V2.1.2 (2003-04) Class 4.1: "Non-weatherprotected −...
  • Page 44: B Glossary

    DBS3900 V300R008 Product Description Glossary Baseband Baseband is a form of modulation in which the information is applied directly onto the physical transmission medium. Base A Base Transceiver Station terminates the radio interface. It allows transmission of Transceiver traffic and signaling across the air interface. The BTS includes the baseband Station processing, radio equipment, and the antenna.
  • Page 45: C Acronyms And Abbreviations

    DBS3900 V300R008 Product Description Acronyms and Abbreviations Adaptive MultiRate Base Band Unit Base Station Controller CBUS Control BUS DAFM Antenna Front-end Module for DTRU BTS DBUS Data BUS DCDU Direct Current Distribution Unit DDPU Dual Duplexer Module for DTRU BTS...
  • Page 46 DBS3900 V300R008 Product Description FMUA Fan Environment Monitor Frame Relay GATM GSM Antenna and TMA Control module GMSK Gaussian Minimum Shift-frequency Keying GPRS General Packet Radio Service Global System for Mobile communications Half Rate man-machine interactive Operation and Maintenance Center...

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