2008-03 www.huawei.com HUAWEI Condential Security Level: Internal Use HUAWEI GSM DBS3900 Hardware Structure HUAWEI TECHNOLOGIES Co., Ltd. Page 2 HUAWEI Condential DBS3900 is a distributed BTS solution developed by Huawei Technologies Co.,Ltd. Its baseband part and radio part can be installed independently so that it can be used to various environments with wide coverage and low cost. HUAWEI TECHNOLOGIES Co., Ltd. Page 3 HUAWEI Condential  Know the functions and features of DBS3900  Master the Hardware structure and function of DBS3900  Familiar with the Typical configuration and cable connection of DBS3900  Master the Network topologies of DBS3900 HUAWEI TECHNOLOGIES Co., Ltd. Page 4 HUAWEI Condential  DBS3900 Electronic Documentation  BBU3900 Quick Installation Guide  RRU3004 Quick Installation Guide  DBS3900 Deployment Guide HUAWEI TECHNOLOGIES Co., Ltd. Page 5 HUAWEI Condential Chapter 1 DBS3900 System Description Chapter 1 DBS3900 System Description Chapter 2 DBS3900 Hardware Structure Chapter 3 DBS3900 Typical Configuration Chapter 4 DBS3900 Network Topologies HUAWEI TECHNOLOGIES Co., Ltd. Page 6 HUAWEI Condential Location PSTN ISDN PSPDN Um Interface DBS3900 DBS3900 DBS3900 BTS OMC HLR/AUC/EIR BSC MSC/VLR SMC/VM A Interface MAP M A P TUP,ISUP MS MS MS MS: Mobile Station BTS: Base Transceiver Station BSC: Base Station Controller HLR: Home Location Register AUC: Authentication Center EIR: Equipment Identity Register MSC: Mobile Switching Center VLR: Visitor Location Register SMC: Short Message Center VM: Voice Mailbox OMC: Operation and Maintenance Center DBS ： Distributed Base Station HUAWEI TECHNOLOGIES Co., Ltd. Page 7 HUAWEI Condential Functions and Features  Wide coverage, low cost  Suitable for various environments, flexible installation  Support PGSM900M 、 EGSM900 、 DCS1800M  One RRU module can support 2 TRXs  Support transmit diversity  Support PBT  Support four-way receive diversity over different RRU  BBU support star, tree, chain and ring topology  Calculate TA exactly  Support GPRS and EGPRS HUAWEI TECHNOLOGIES Co., Ltd. Page 8 HUAWEI Condential Functions and Features  Support Omni-directional coverage and directional coverage  One BBU can support 36TRX at most and 12 cells at most  Support A5/3, A5/2, A5/1 encryption and decryption  Support dynamic radio frequency management  Cell broadcasting service and point-to-point short message  Support mixed combining with BTS3012  Support -48VDC power input HUAWEI TECHNOLOGIES Co., Ltd. Page 9 HUAWEI Condential Chapter 1 DBS3900 System Description Chapter 2 DBS3900 Hardware Structure Chapter 2 DBS3900 Hardware Structure Chapter 3 DBS3900 Typical Configuration Chapter 4 DBS3900 Network Topologies HUAWEI TECHNOLOGIES Co., Ltd. Page 10 HUAWEI Condential Abbreviation RRU Remote Radio unit BBU Base Band unit GTMU Transmission& Timing& Management Unit for BBU UPEA Universal power and Environment interface unit Type A (-48v) BSBC Universal BBU Subrack Backplane Type C (2U) UBFA Universal BBU Fan Unit Type A (2U) UEIU Universal Environment Interface unit UELP Universal E1/T1 Lighting Protection unit UFLP Universal FE/GE Lighting Protection unit CPRI Common Protocol Radio Interface APM Advanced Power Module IBBS Integrated Backup Battery System OFB Outdoor Facility Box [...]...Sector 1 DBS3900 Hardware Components Sector 2 BBU3900 System Structure Sector 3 RRU3004 System Structure Sector 4 DBS3900 Typical Scenario HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 11 DBS3900  The DBS3900 consists of the BBU3900 and the RRU3004  The BBU3900 is an indoor baseband unit It provides... V 100 Ah or 2 V 150 Ah, four batteries in one group and four groups in the IBBS cabinet HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 15 Sector 1 DBS3900 Hardware Components Sector 2 BBU3900 System Structure Sector 3 RRU3004 System Structure Sector 4 DBS3900 Typical Scenario HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 16 BBU3900  The BBU3900 is an indoor BTS control unit that enables... centralized management on the entire DBS system, such as OM and signaling processing  Provides the reference clock for the entire system HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 17 Logical Structure of the BBU3900 HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 18 Hardware Components of BBU3900  The typical power consumption of the BBU is 35 W  The weight of the BBU isn’t more than 12KG... cable HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 30 BBU Cables  The cables figure of the BBU (1)RJ45 Connector (2) Cord end terminal (3)OT Connector (4)Common 3PIN Connector Monitoring signal cable between the OFB and the BBU (1)RJ45 Connector Monitoring signal cable between the APM and the BBU HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 31 (2) Cord end terminal Sector 1 DBS3900 Hardware. .. Sector 2 BBU3900 System Structure Sector 3 RRU3004 System Structure Sector 4 DBS3900 Typical Scenario HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 32 RRU3004  The RRU3004 is an outdoor remote RF unit  The functions of the RRU3004 are as follows:  The direct IQ modulation technique, which is directly implemented in the transmit channel, modulates the baseband signals into GSM RF signals After... interface, and the alarm detection HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 33 Logical Structure of the RRU RXM_OUT:RRU RX main output for RRU cascading HUAWEI TECHNOLOGIES Co., Ltd RXD_IN:RRU RX diversity input for RRU cascading HUAWEI Confidential Page 34 Components of the RRU3004  An RRU3004 consists of two RRU modules  The RRU module has a modular structure The external interfaces... 75Ω E1 ） HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 28 BBU Cables  The BBU3900 cables are classified into the PGND cable, –48 V DC power cable, E1/T1 cable, E1 transfer cable, RS485 environment monitoring signal cable, CPRI signal cable between the BBU and the RRU, and BBU monitoring signal cable  The cable connection relations of the BBU as following: HUAWEI TECHNOLOGIES Co., Ltd HUAWEI. .. The RRU3004 can be installed on a wall, stand, metal pole, or tower HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 35 RRU Module  The RRU module has a bottom panel, a cabling cavity panel, and an area attached with LEDs  Provides - 48VDC power supply 1 Bottom panel 2 Cabling cavity panel 3 LEDs HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 36 ... between boards and supplies power for boards  The GTMU is located in slots 5 and 6, slot 7 for a main control board that supports 3G, and other ports as common slots HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 20 GTMU Board  The GSM transmission, timing, and management unit for BBU (GTMU) controls and manages the entire BTS It provides interfaces related to the reference clock, power supply,... unit It processes baseband signals and RF signals  The Local Maintenance Terminal (LMT) and Man-Machine Interactive (MMI) can implement the maintenance of the DBS3900 through the BBU3900 RRU3004 RRU3004 RRU3004 BBU3900 HUAWEI TECHNOLOGIES Co., Ltd HUAWEI Confidential Page 12 APM30 Overview  The APM30 provides –48 V DC power and power backup for the distributed base stations and mini base stations, and . 2008-03 www .huawei. com HUAWEI Condential Security Level: Internal Use HUAWEI GSM DBS3900 Hardware Structure HUAWEI TECHNOLOGIES Co., Ltd. Page 2 HUAWEI Condential DBS3900 is a distributed. input HUAWEI TECHNOLOGIES Co., Ltd. Page 9 HUAWEI Condential Chapter 1 DBS3900 System Description Chapter 2 DBS3900 Hardware Structure Chapter 2 DBS3900 Hardware Structure Chapter 3 DBS3900. Guide HUAWEI TECHNOLOGIES Co., Ltd. Page 5 HUAWEI Condential Chapter 1 DBS3900 System Description Chapter 1 DBS3900 System Description Chapter 2 DBS3900 Hardware Structure Chapter 3 DBS3900