DBS3900 V300R008
Product Description
Issue 04 (2008-06-11)
Commercial in Confidence
Page 6 of 46
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 .............................................................................................................................. 12
1.2.3 High Reliability....................................................................................................................... 12
2 Features of the DBS3900..............................................................................................13
2.1 Coverage Capability ....................................................................................................................... 13
2.2 Capacity ......................................................................................................................................... 13
2.3 Networking Capability..................................................................................................................... 13
2.4 Clock and Synchronization............................................................................................................. 14
2.5 Multi-Band Application.................................................................................................................... 14
2.6 Antenna .......................................................................................................................................... 14
2.7 Installation ...................................................................................................................................... 15
2.7.1 Installation of the BBU ........................................................................................................... 15
2.7.2 Installation of the RRU........................................................................................................... 15
2.8 Environment Adaptability................................................................................................................ 15
2.9 Operation and Maintenance........................................................................................................... 16
2.10 High-Velocity MS Application ....................................................................................................... 16
2.11 Capacity Expansion and Evolution ............................................................................................... 16
2.11.1 Capacity Expansion ............................................................................................................. 16
2.11.2 Evolution .............................................................................................................................. 16
3 System Architecture .....................................................................................................18
3.1 Functional Architecture of the BBU ................................................................................................ 18
3.1.1 Functional Modules ............................................................................................................... 18
3.1.2 BTS Interface Unit ................................................................................................................. 19
3.1.3 Central Processing Unit......................................................................................................... 19
3.1.4 High-Speed Interface Unit ..................................................................................................... 19
3.1.5 Clock Unit .............................................................................................................................. 19
3.1.6 Monitoring Unit ...................................................................................................................... 19
3.2 Functional Architecture of the RRU................................................................................................ 20
3.2.1 Functional Modules ............................................................................................................... 20
