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1、忙时尝试呼叫BIEBase station Interface Equipment （board）基站接口设备（板）BIOSBasic Input Output System基本输入输出系统BITSBuilding Integrated Timing Supply大楼综合定时供给系统BMBasic Module基本模块BPBurst Pulse突发脉冲BQBad Quality质量差BSBase Station基站BS1Abis InterfaceAbis接口BSCBase Station Controller基站控制器BSICBase Station Identity Code基站识别码BS

2、MUBase Station Interface Unit基站接口单元BSSBase Station Subsystem基站子系统BSSAPBase Station Subsystem Application Part基站子系统应用部分BSSGPBase Station Subsystem GPRS Protocol基站系统GPRS协议BSSMAPBase Station Subsystem Management Application Part基站子系统管理应用部分BSSOMAPBase Station Subsystem Operation and Maintenance Applicat

3、ion Part基站子系统操作与维护应用部分BTSBase Transceiver Station基站收发信台BTSMBase Transceiver Station ManagementBTS管理BVCBSSGP Virtual ConnectionBSSGP虚拟连接C CACell Allocation小区分配CAMELCustomized Applications for Mobile network Enhanced Logic移动网络增强逻辑的客户化应用CBACell Bar Access小区禁止接入CBCCell Broadcast Center小区广播中心CBCHCell Bro

4、adcast CHannel小区广播信道CBCCHCell Broadcast Control Channel小区广播控制信道CBQCell Bar Qualify小区禁止限制CBSMCell Broadcast Short Message小区广播短消息CCCountry Code国家码Calling Control呼叫控制Connection ConfirmCCBCall Control Block呼叫控制块CCBSCompletion of Calls to Busy Subscribers遇忙回呼CCCHCommon Control Channel公共控制信道CCHControl Cha

5、nnel控制信道CCSCommon Channel Signaling共路信令方式CDCall Deflection呼叫偏移CDBCell Broadcast Database小区广播数据库CDUCombining and Distribution Unit合分路单元CELPCode Excited Linear Prediction码激励线性预测CGICell Global Identity小区全球识别码CICell Identity小区识别CICCircuit Identify Code电路识别码Carrier Interface Controller board载频接口控制器CIRCar

6、rier to Interference Ratio载干比CKSNCiphering Key Sequence Number密钥序列号CKVClock Drive board时钟驱动板CMConnection Management接续管理CPUCentral Processing Unit中央处理单元CRConnection Request连接请求CRCCyclic Redundancy Check循环冗余校验CROCell Reselect Offset小区重选偏移CSCoding Scheme（信道）编码方式CS-1Code Scheme-1编码模式1（s）CS-2Code Scheme-

7、2编码模式2（s）CS-3Code Scheme-3编码模式3（s）CS-4Code Scheme-4编码模式4（s）CTNCentral Switching Network Board中央交换网板DDBDataBase数据库DBFDatabase File数据库文件DBMSDatabase Management System数据库管理系统DCDirect Current直流DCCHDedicated Control Channel专用控制信道DCLDiagnostic Control Link诊断控制链路DDNDigital Data Network数字数据网DLDownlink下行链路DL

8、CData Link Connection数据链路连接DLCEPData Link Connection End Point数据链路连接端点DLCEPIData Link Connection End Point Identifier数据链路连接端点标识DLCIDigital Link Connection Identity数据链路连接标识DNSDomain Name Server域名服务器DPCDestination （Signaling） Point Code目的信令点编码DRDBMSDistributed Relational DBMS分布式关系数据库管理系统DRXDiscontinuo

9、us Reception （mechanism）不连续接收DSCDownlink Signaling fault Count下行信令故障计数DSPDigital Signal Processor数字信号处理器DTAPDirect Transfer Application Part直接传输应用部分DTMFDual Tone Multi-frequency双音多频（收号器）DTXDiscontinuous transmission （mechanism）不连续发送（机制）EE-AbisEnhanced Abis增强型AbisE3ME3 Sub-Multiplexer增强型E1子复用设备EAEarl

10、y Allocation预分配EACExternal Alarm Collection外部告警采集ECEmergency Call紧急呼叫ECSCEarly Classmark Sending Control早期类标发送控制ECTExplicit Call Transfer显示呼叫转移EDUEnhanced Duplexer Unit增强型双工单元EFREnhanced full rate speech code增强型全速率语音编解码EIREquipment Identity Register设备识别寄存器EMExtended Measurement扩展测量EMCElectromagnetic

11、 Compatibility电磁兼容性ESTEstablishment建立ETSEuropean Telecommunication Standard欧洲电信标准ETSIEuropean Telecommunication Standard Institute欧洲电信标准组织FFACCHFast Associated Control CHannel快速随路控制信道FBCPhotoelectric Conversion Board光电转换板FBIOptical Fiber Interface Board光接口板FCCHFrequency Correction CHannel频率校正信道FCSFr

12、ame Check Sequence帧校验序列FDMAFrequency Division Multiple Access频分多址FHFrequency Hopping跳频FIRFinity Impulsion Response有限冲击响应FNFrame Number帧号FPUFrame Processing Unit帧处理单元FRFrame Relay帧中继FTAMFile Transfer Access and manipulation文件传输、接入及使用FTCFull Rate Transcoder码变换板FTPFile Transfer Protocol全速率码变换器FUCFrame

13、Unit Controller帧单元控制器FULRadio Signaling Link无线信令链路GG-AbisGPRS AbisGALMAlarm board告警板GCKSClock source时钟板GCTNCentral switching Network board中心交换网板GEMAEmergency Message Automatic Transmission System双机倒换板GFBIFiber Interface board光纤接口板GGSNGateway GPRS Support Node网关GPRS支持节点GLAPLAPD Protocol Process board

14、LAPD协议处理板GMC2Inter-Module Communication board模块通信板GMCCModule Communication and Control board模块通信控制板GMEMMemory board数据库接口板GMMGPRS Mobility ManagementGPRS移动性管理GMPUMain Processing Unit主处理单元GMSCGateway Mobile Switching Center关口局GMSKGaussian Minimum Shift-frequency Keying高斯滤波最小移频键控GNETIntra-module switch

15、ing network board交换网板GNODNode Communication Board节点通信板GOPTLocal Optical Interface Board光纤通信板GPRSGeneral Packet Radio Service通用分组无线业务GPSGlobal Position System全球定位系统GPWSGSM Secondary Power board二次电源板GSM，GSM900， GSM1800Global System for Mobile communications全球移动通信系统，900MHz的GSM系统，1800MHz的GSM系统GSNGPRS Su

16、pport NodeGPRS支持节点GSNTGSM Signaling Switching Network Board信令交换网板GTGlobal Title全局码GTPGPRS Tunnelling ProtocolGPRS隧道协议HHC/HY COMHybrid Combiner混合桥型合路器HCSHierarchical Cell Structure小区分层结构HDLCHigh level Data Link Control高级数据链路控制HDSLHigh speed Digital Subscriber Line高速数字用户线HLRHome Location Register归属位置寄

17、存器HOHandover切换HPAHigh magnification Power Amplifier board高增益功放板HSCHot Swap Controller热倒换控制器HSNHopping Sequence Number跳频序列号HWHighway高速通路IIDIDentification/IDentity识别IECInternational Electrotechnical Commission国际电工委员会IMEIInternational Mobile station Equipment Identity国际移动终端设备标识IMSIInternational Mobile

18、Station Identity国际移动用户识别码INDIndication指示IOMUiSite Operation and Maintenance Unit操作维护单元板IPInternet Protocol互联网协议ISDNIntegrated Services Digital Network综合业务数字网ISOInternational Standard Organization国际标准化组织ISRInterrupt Service中断服务程序ISUPIntegrated Services Digital Network User Part/ISDN User Part（七号信令之）I

19、SDN用户部分ITUInternational Telecommunication Union国际电信联盟ITU-TInternational Telecommunication Union - Telecommunication Standardization Sector国际电信联盟-电信标准部IWFInter-working Function互连功能J-KLL2MLLayer 2 Management Link层2管理链路L3MMLayer-3 Mobility Management层三移动管理LALocation Area位置区LACLocation Area Code位置区码（LAC

20、）LAILocation Area Identity位置区标识LAPLink Access Protocol协议处理板LAPDLink Access Protocol on the D-channelD信道上的链路访问协议LAPDMAILLAPD Mail BoxLAPD邮箱LAPDmLink Access Protocol on the Dm channelDm信道上的链路访问协议LLCLogical Link Control逻辑链路控制LMTLocal Maintenance Terminal本地维护终端LNALow Noise Amplifier低噪声放大器LPN7Common Chan

21、nel Signaling Processing Board公共信道信令处理板MMAMobile Allocation移动台（频率）分配MACMedia Access Control媒质接入控制MAIOMobile Allocation Index Offset移动分配索引偏移MAPMobile Application Part移动应用部分MBRMultiband Report多频报告MCCMobile Country Code移动国家码MCKMain ClocK board主时钟板MCPMultiple Communication-Protocol Processor多重通信协议处理器MDC

22、Message Discrimination消息鉴别MDSLMedium Bit-rate Digital Subscriber Loop中速数字用户环线MDTMessage Distribution消息分配MEMobile Equipment移动设备MFUMicrocell Frame Unit微蜂窝帧处理单元MMMobility Management移动性管理MMUMultiplication and Management Unit复用管理单元MNCMobile Network Code移动网号MNSMobile Network Signaling移动网信令MRMeasurement Re

23、sult测量结果Measurement Report测量报告MRPMultiple Reuse Pattern多重复用方式MRTMessage Routing消息路由MSMobile StationMSCMobile services Switching Centre, Mobile Switching Centre移动交换中心MSISDNMobile Station International ISDN Number移动台国际ISDN号码MSMMSC Subrate channel MultiplexerMSC侧子复用板MTMobile Terminal移动终端MTBFMean Time B

24、etween Failure平均无故障时间MTPMessage Transfer Part消息传输部分NNC?Network Control网络控制NCCNetwork Color Code网络色码NCHNotification Channel通知信道NENetwork Equipment网络设备NMNetwork Management网络管理NSNetwork Service网络服务NSENetwork Service Entity网络服务实体NSSNetwork SubSystem网络子系统OO&M, OMOperations & Maintenance操作与维护OACSOOff Air

25、Call Set up不占用空中通道的呼叫启动OAMOperation Administration and Maintenance运行管理和维护OMAPOperation and Maintenance Application Part操作维护应用部分OMC Maintenance Centre操作维护中心OMLOperation and Maintenance Link操作与维护链路OMU Maintenance Unit （board）操作维护单元（板）OOPObject Oriented Programming面向对象的程序设计OPCOriginating Point Code源信令点编码OPT