GSM常用术语总结

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GSM名词解释

GSM名词解释

1、MS(Mobile Station)移动台,包括:移动设备ME和SIM卡。

2、BTS(Base Transceiver Station)基站收发信机,负责无线信号的收发。

3、BSC(Base Station Controller)基站控制器,处理所有与无线信号有关的工作:小区切换、无线资源管理等。

4、MSC(Mobile Service Switching Center)移动业务交换中心,为移动用户提供交换功能,负责移动用户的呼叫建立。

MSC与VLR总是合并在一起。

5、GMSC(Gateway MSC)MSC关口局,连接MSC和其它网络如PSTN。

6、VLR(Visitor Location Register)拜访位置寄存器,临时存放在该地的手机用户的用户数据,是临时的HLR。

7、HLR(Home Location Register)归属位置寄存器,HLR是一个数据库,其中存放着全部归属用户的信息,负责向VLR发送用户数据。

8、AUC(Authentication Center)鉴权中心,用于对用户身份的鉴别。

9、EIR(Equipment Identity Register)移动台设备识别寄存器,用于储存及鉴别移动台的设备身份。

10、OMC(Operation and Maintenance Center)操作维护中心,提供人机界面实现对系统设备的监测和控制功能。

GSM数字移动通信系统主要由移动交换系统NSS、基站子系统BSS、操作维护子系统OMS和移动台MS构成。

下面具体描述各部分的功能。

1、移动交换系统NSSNSS主要完成交换功能以及用户数据管理、移动性管理、安全性管理所需的数据库功能。

移动交换系统由移动交换中心MSC、归属位置寄存器HLR、拜访位置寄存器VLR、设备识别寄存器EIR、鉴权中心AUC和短消息中心SMC等功能实体构成。

MSC:GSM系统的核心,完成最基本的交换功能,即完成移动用户和其他网络用户之间的通讯连接;完成移动用户寻呼接入、信道分配、呼叫接续、话务量控制、计费、基站管理等功能;提供面向系统其他功能实体的接口、到其他网络的接口以及与其他MSC互连的接口。

GSM中的常用术语总结

GSM中的常用术语总结

GSM中的常用术语总结A3鉴权算法A3A3/8实现A3和A8功能的单独算法A5/1加密算法A5/1A5/2加密算法A5/2A5/X加密算法A5/07A8长生密钥的算法A8 AB Access Burst接入突发脉冲AC Access Class(C0 to C15)访问类别(从C0到C15)Application Context应用上下文ACC Automatic Congestion Control自动拥塞控制ACCH Associated Control Channel随路控制信道ACK ACKnowledgement证实(用于信令)ACMAccumulated Call Meter 累计呼叫记录Address Complete Message地址完全的消息ACU Antenna Combining Unit天线合成单元ADCAdministration Center管理中心Analogue to Digital Converter模数转换器AND Abbreviated Dialing Number缩位拨号ADPCM Adaptive Differential Pulse Code Modulation自适应差分脉冲编码调制AE Application Entily应用实体AEC Acoustic echo control回音控制AE Additional elementary functions 附加基本功能AGCH Access grant channel 接如允可信道Ai Actions indictor 动作指示器AoC Advice of charge费用建议AoCC Advice of charge charging supplementary service费用建议信息补充业务AoCI Advice of charge information Supplementary service费用建议信息补充业务ASE Application service element 应用服务单元ASN.1Abstract syntax notation one抽象语法表示1 ARFCN Absolute radio frequency channel number绝对无线频率信道号ARQ Automatic request for retransmission 自动重法请求ATT(flag)Attach附着(用于信令) AU Access unite 访问单元AuC Authentication center鉴权中心AUT( H )Authentication 鉴权BA BCCH allocation BCCH 分配BAIC Barring of all incoming calls supplementary service 限制所有呼入呼叫的补充业务BAOC Barring of all outgoing calls supplementary service 限制所有呼出呼叫的补充业务BCC Base transceiver station (BTC) color channel 基站收发器代码BCCH Broadcast control channel广播控制信道BCD Binary coded decimal二进制编码的十进制BCF Base station control function 基站控制功能BCIE Bearer capability information 载波容量信息单元BER Bit error rate误码率BFI Bad frame indication坏帧指示BI all barring of incoming call supplementary service所有的限制呼入呼出补充业务BICRoam Barring of incoming calls when roaming outside the room PLMN country supplementservice在注册PLMN的国家之外限制呼入呼出的补充业务BN Bit number比特数BO All barring of outgoing call supplementary service所有限制呼入呼出的补充业务BOIC Barring of outgoing international calls supplementary service限制国际呼叫的补充业务BOICexHC Barring of outgoing international calls except those directed to the home PLMNcountry supplementary service除了直接呼叫注册的PLMN 国家以外限制国际呼入呼出的补充业务BS Bearer service 载波服务BSG Basic service (group)基本服务Basic service group基本服务组BSC Base station controller基本控制器BSIC Base transceiver station identity code 基站识别码BSICNCELL BSIC of an adjacent cell相邻小区BSIC BSS Base station system 基站子系统BSSAP Base station system application part 基站子系统应用部分BSSMAP Base station system management application part基站子系统管理应用部分BSSOMAP Base station system operation management application part基站子系统操作和维护应用部分BTS Base transceiver station 基站C Conditional 有条件的CA Cell allocation 小区分配CAI Charge advice information 收费建议信息CB Cell broadcast 小区广播CBC Cell broadcast center小区广播中心CBCH Cell broadcast channel 小区广播信道CBMI Cell broadcast message identifier小区广播信息表示符CC Country code 国家代码Call control呼叫控制CCBS Completion of calls to busy subscriber supplementary service对占线用户的完成呼叫的补充业务CCCH Common control channel公用控制信道CCF Conditional call forwarding 条件呼叫转移CCH Control channel 控制信道CCITT The international telegraph and telephone consultative committee国际电报电话质询委员会CCM current call meter当前呼叫纪录CCP Capability /configuration parameter容量/配置参数CCPE Control channel protocol entity控制信道协议实体Cct Circuit 电路CDUR Chargeable DURation计费时间CED Call station identifier被呼叫的基站表示符CEID Central equipment identifier register中央设备寄存器CEND End of charge point 计费点CEPT Conference of European post and telecommunication administration欧洲邮政和远程通信会议CF Conversion facility变换设施CFBAll call forwarding service所有的呼叫转移服务Call forwarding on mobile subscriber busy supplementary service 遇忙呼叫转移补充服务CFNRc Call forwarding on mobile subscriber not reachable supplementary service不再服务区呼叫转移补充服务CFNRy Call forwarding on no reply supplementary service无应答呼叫转移补充服务CFU Call forwarding unconditional supplementary service 无条件呼叫转移补充服务CHP Charging point 计费点CHV Card holding verification information卡持有者验证信息CI Cell identity CUG index小区标示CUG索引CIR Carrier interference ratio载波干扰比CKSN Ciphering key sequence number密钥序列码CLI Calling line identity 呼叫线路标示CLIP Calling line identification presentation supplementary service 呼叫线路标示显示补充业务CLIR Calling line identification restriction supplementary service呼叫线路标示限制补充业务CM Connection management 连接管理CMD command命令CMM Channel mode modify 信道模式更改CNG CalliNG tone呼叫音调COLI Connected line identity连接线路标示COLP Connected line identification presentation supplementary service连接的线路标示显示补充业务COLR Connected line identification restriction supplementary service 连接的线路标示限制补充业务COM COmplete完成CONNACK CONNect acknowledgement连接确认C/R Command/response field bit命令/相应比特CRC Cyclic redundancy check冗余循环校验CRE Call Reestablishment procedure呼叫重建立过程CSPDN Circuit switching public data network电路交换公众数据网CT Call transfer supplement service 呼叫转移补充业务Channel test 信道测试Channel type信道类型CTR Common technical regulation通用技术规定CUG Close user group supplementary service闭合用户组补充业务CW Call waiting supplementary service呼叫等待补充业务DAC Digital to analogue converter数模转换D B Dummy burst填充突发脉冲DCCH Dedication control channel 专用控制信道DCE Data circuit terminating equipment 数据电路终端DCF Data communication function 数据通信功能DCM Data conversion module 数据转换模块DCS1800Digital cellular system at 1800MHz 1800MHz数字蜂窝系统,和900MHz并称双频网DET Detach 分离DISC Disconnect 断开连接DL Data link(layer)数据链路层DLCI Data link connection identifier 数据链路连接标示DLD Data link discriminator数据链路鉴别器Dm Control channel (isdn )控制信道(用于isdn )DMR Digital mobile radio 数字无线移动DNIC Data network identifier数据网标示DP Dial /dialed pulse 拨号脉冲DRX Discontinuous reception 非连续的接受DSE Data switch exchange数据交换DSI Digital speech interpolation 数字语音插值DSSI Digital subscriber signaling No.1一号数字用户信令DTAP Direct transfer application part 直接传送应用部分DTE Data terminal equipment数据终端DTMF Dual tone multi Frequency双音频DTX Discontinuous transmission 非连续传送EA External alarms外部警告EBSG Elementary basic service group基本服务组ECM Error correction mode差错纠正模式Ec/No Ratio of energy per modulating bit to the noise spectral density每调制比特功率和噪声频谱密度的比率ECT Explicit call transfer supplementary service显示呼叫转移补充业务EEL Electric echo loss电力回波损耗EIR Equipment identity register设备标示寄存器EL Echo loss回波损耗EMC Electromagnetic compatibility电磁兼容性EMI Electromagnetic interference电磁干扰Emlpp Enhanced multilevel preecednce and preemption service 增强多层优先服务EMMI Electrical man machine interface电力人机接口EPROM Erasable programmable read only memory 可擦除的可编程只读存储器ERP Ear reference point听力产参考点ERR error错误ETR ETSI technical report ETSI 的技术报告ETS European telecommunication standard欧洲电信标准ETSI European telecommunication standard institute欧洲电信标准协会FA Full allocation fax adaptor完全分配传真适配器FAC Final assembly code最终集结码FACCH Fast associated control channel 快速随路信道FACCH/F Fast associated control channel /full rate快速随路信道/权速率FACCH/H Fast associated control channel /half rate快速随路信道/半速率FB Frequency correction burst 突发脉冲频率矫正FCCH Frequency correction channel频率矫正信道FCS Frame check sequence帧检查序列FDM Frequency division multiplex频分多路复用FDN Fixed digital number固定拨号FEC Forwarding error correction前向纠错FER Frame erasure ratio帧消除比率FH Frequency hopping 跳频FN Frame number帧号FR Full rate全速率FTA Final type approval最终型号标准FTAM File transfer ,access and manipulation文件传输访问和使用FTN Forwarded and number前转号码GCR Group call register呼叫组寄存器GMSC Gateway mobile service switching center 移动业务交换中心网关GMSK Gaussian minimum shift keying modulation高斯整形滤波最小频移键控GPA Gsm plmn area GSM PLMN 区域GPRS General packet radio service通用无线分组服务GPRS General power supply unite通用功率电源单元GSA Gsm system area GSM系统区域GSM Global system for mobile communication全球移动通信系统GSM PLMN Gsm public land mobile network公用陆地移动网络GT Global title全球标示HDLC High level data link control高层数据链路控制HLC High layer compatibility高层兼容性HO HANDOver切换HOLD Call hold supplementary service呼叫保持补充业务HOLMN Home PLMN归属PLMN HPU Hand portable手持单元HSN Hopping sequence number跳频序列数字I Information frame信息祯IA Incoming access 呼人接入IAM Initial address message初始地址消息IC Interlock code互琐码ICB Incoming call barred 限制呼入呼叫ICC Inte grated circuit card 集成电路卡IC Interlock code优先互琐码ICM Incall modification呼入呼叫更改ID Identification/identity/identifer标示IDN Integrated digital network综合数字网IE Signaling information element信息单元IEI Information element identifier信息单元表示IETS Interim European telecommunication standart临时欧洲电信标准IMEI international mobile station equipment identity国际移动台设备表示IMSI International mobile subscriber identity国际移动用户标示IN Interrogting node询问节点ISC International switch center国际交换中心ISDN Integrated service digital network 综合业务数字网ISO International organization for standardzation国际标准化组织ISUP Isdn user part (of signal system No.7)ISDN用户部分ITC Information transfer capability信息传送容量IWF Interworking functions互连功能IWMSC Interworking MSC互连的MSCIWU Interworking Uinte互连的单元Kc Ciphering key密钥Ki Individual subscriber authentication用户鉴权密钥L3Layer 3第三层LA Location area位置区域LAC Location area code位置区域码LAI Location area identity位置区域标示LAN Local area network 本地网LAPB Link access protocol balanced平衡的链路接入协议LAPDm Link access protocol on the channel在Dm信道上的链路接入协议LCN Local communication network本地通信网LE Local exchange本地交换LLC Low layer compatibility低层兼容性LMSI Local mobile station identity本地移动台标示LNA Low number digled低噪声放大器LND Last number dialed上次拨叫号码LPLMN Local PLMN本地PLMNLR Location register位置积存器LTE Local terminal emulator本地终端模拟器LU Local units本地单元LV Length and value长度和含义M Mandatory必备的MA Mobile allocation移动分配MACN Mobile allocation移动分配信道号MAF Mobile allocation channel number移动附加功能MAH Mobile access hunting supplementary service移动搜寻补充功能MAI Mobile allocation index移动分配索引MAIO Mobile allocation index offset移动分配索引偏移MAP Mobile allocation part移动应用部分(用于MSC间的信令)MCC Mobile country code移动国家代码MCI Malicious call identification supplementary service恶意呼叫识别补充业务MD Mediation device中介设备MDL Mobile management data link 管理数据链路ME Mobile equipment 维护实体MEF Maintenance entity functions维护实体功能MF Multiframe复祯MHS Message handling system 消息处理系统MIC Mobile interface controller移动接口控制MLSE Maximum likelihood system最大自然序列估计MMMan machine人机Mobility management移动性管理MME Mobility management entity移动性管理实体MMI Man machine interface人机接口MNC Mobile network code移动网络代码MO Mobile originated call移动主叫MoU Memorandum of understanding 谅解备忘录MPH Mobile management physical管理物理MPTY Multiparty supplementary service多方通话补充业务MRP Mouth reference point口参考点MS Mobile station移动台MSC Mobile service switch center 移动交换台MSCM Mobile station class mark移动台类别标志MSCU Mobile station control unite移动台控制单元MSISDN Mobile station ISDN移动台号码MSRN Mobile station roaming number移动台漫游号码MT Mobile terminated移动被叫MT Mobile termination移动终端MTBF Mean time between failure平均无故障时间MTC Mobile terminate call移动被叫MTM Mobile to mobile移动台到移动台的呼叫MTP Mark up消息传输部分MU Multi user mobile station标记MUMS Multiuser mobile station多用户移动台N/W Network网络NB Normal brust正常突发脉冲NBIN A parameter in the hopping sequence一个跳频序列中的参书NCC Network PLMN color code网络代码NCELL Neighboring cell当前小区的邻小区NDC National destination code本国目的代码NDUB Network determined user busy 由网络确定用户忙NE Network element网络单元NEF Network element function网络单元功能NF Network function网络功能NIC Network independent clocking与网络无关的定时NM Network management网络管理NMC Network management center网络管理中心NMSI National mobile station identification number本国移动的标示号NPI Number plan identifier号码规划表示NSAP Network service access point网络业务接入点NT No transparent网络终端NTABB New type approval advisory 新类型批准部门NUA Network user access 网络用户接口NUI Network user identification网络用户标识NUP National user part本国用户标准O Optional可选的OA Outgoing access呼出接入O&M Outgoing & maintenance操作和维护OACSU Off air call setup不占用空中信道的呼叫建立OCB Outgoing calls barred within the CUG CUG中限制呼出呼叫OD Optional for operators to implement for their aim运营商为实现不同的目的的可选部分OLR Overall loudness rating 锋值音量比率OMC Operations and maintenance center 操作和维护中心OML Operations and maintenance link操作和维护链路OMS-B Operations and maintenance system for the BBS对BBS的操作和维护OS Operation system操作系统OSI Open system interconnection开放系统互连模型OSI RM OSI reference model OSI参考模式PABX Private automatic branch exchange专用自动交换机PAD Packet assemble /disassembly 分组集结PCH Paging channel寻呼信道PCM Pulse code modulation脉冲编码调制PD Protocol discriminator协议鉴别器PDN Public data network公用数据网PH Packet handle分组处理PHI Packet handle interface分组处理接口PI Presentation indicator显示指示PICS Protocol implementation conformance statement协议实现一致性申明PIN Personal identification code个人识别码PLXT Protocol implementation extra information for testing用于测试的协议实现附加信息PLMN Public lands mobile network公用陆地移动网络PP Performance management性能管理POI Point of interconnection 和PSDN互连点PP Point to point 点到点PPCC Peripheral processor for CCSS 7对CCCS7的外围处理器PPLD Peripheral processor for LOAD对LOAD的外围处理器PREF CUG Preferential CUG优先的CUG PS Location probability位置可能性PSPDN Packet switched public data network分组交换公用数据网PSTN Packet switched telephone network公用电话交换网PUCT Price per unit currency table每单元价格表PUK PIN unblock key PIN解锁密码PW Pass word密码QA Q adapter Q 接口适配器QAF Q adapter functions Q Q 接口适配器功能QOS Quality of service业务质量RA Random mode request information field随机模式请求信息区域RAB Random access brust突发脉冲随机接入RACH Random access channel随机接入信道RAND Random number随机数RBER Residual bit error ratio剩余误比特率RDI Restricted digital information限制的数值信息REC Recommendation建议REJ e Rejection拒绝REL Release释放REQ Request请求RF Radio frequency射频RFCI Radio frequency channel无线频率信道RFCH Radio frequency channel无线频率信道RFN Reduced TDMA frame number缩减TDMA信道RFU Reserved for future use为将来保留RLP Radio link protocol无线链路协议RLR Receiver loudness rating接受音量比率RMS Root mean square均量值RNTABLE Table of 128 integer in the hopping sequence跳频序列中的128个整数表ROSE Remote operation service element远程超做业务单元RR Radio resource无线资源RSE Radio system entity无线系统实体RSL Radio signaling link无线信令链路RSZI Regional subscription zone identity区域的预约区域标识RTE Remote terminal emulator远端终端模拟器RX Receiver signal level接受的信号强度RXAMOD Received antenna module 接受的无线摸快RXMUCO Receiver multi coupler接受多路耦合器RXQUAL Received signal quality接受的信号质量S/W Software软件SABM Set asynchronous balanced mode置异步平衡模式SACCH Slow associated control channel慢速随路控制信道SACCHG/4Slow associated control channel/sdcch/4慢速随路控制信道/SDCCH4 SACCH/8Slow associated control channel/sdcch/8慢速随路控制信道/SDCCH8 SACCH/T Slow associated control channel/traffic channel慢速随路控制信道/业务信道SACCH/TF Slow associated control channel/traffic channel full rate慢速随路控制信道/全速业务SAP Slow associated control channel/traffic channel half rate业务接入点SAPI Service access point indicator业务接入点指示SB Synchronization同步突发脉冲SC Service center接入中心Service code接入代码SCCP Signaling connection control part信令连接控制部分SCH Synchronization channel同步信道SDCCH Standalone dedicated control channel独立专用信道SDL Specification description说明与描述语言SDT SDL development tool SDL开发工具SDU Service data unit业务数据单元SE Support entity支持实体SEF Support entity functions支持实体功能SFH Slow frequency hopping慢速跳频SI Screening indication屏蔽SIM Subscriber identity业务互作用SLR Send loudness rating发送音量比率SLTM Signaling link test message信令链路测试消息SMAP System management系统管理应用程序SM Security management安全SME Short message entity短消息实体SMG Special mobile group短消息组SMISE Special management information service element专用管理信息业务SMS Short message service短消息业务SMSCB Short message service cell broad cast短消息业务小区广播SMSSC Short message service center短消息业务中心SMS/PP Short message service/point to point短消息业务/点到点SMT Short message terminal短消息终端SN Subscriber number用户号码SNR Serial number R序列好SOA Suppress outgoing access 抑制呼出接入SP Service provider业务提供商Signaling Point信令点SPCSignaling point code信令点代码Suppress Preferential CUG 抑制优先的CUGSRES Signed RESponse鉴权响应数SS Supplementary service system simulator补充业务System Simulator系统模拟器SSC Supplementary service control string补充业务控制串SSN Subsystem NO 7子系统号码SS7/SS#7Signaling system NO 7 七号信令STMR Side tone masking rating侧音屏蔽比率STP Signaling transfer信令传输点SVN Software version软件版本好SWM Software management软件管理T Timer时钟TA Terminal Adaptor终端适配器Time advance时间提前量TAC Type approval Code类型批准代码TAF Terminal adaptation Function终端适配功能TBR Technical basis for regulation规定的技术基础TC Transaction capabilities处理能力TCAP Transaction capabilities application part事物处理能力的应用部分TCH Traffic channel业务信道TCH/F A full rate tch全速业务信道TCH/F2.4 A full rate tch/2,4 k全速业务信道(<=2.4k bit)TCH/F4.8 A full rate tch /4.8k全速业务信道(4.8k) TCH/F9.6 A full rate tch/9.6k全速业务信道(9.6k) TCH/FS A full rate speech ch全速语音信道TCH/HS A half rate tch半速语音信道TCI Transeceiver control interface收发信机控制接口TCTR Technical committee technical report技术委员会技术报告TDMA Time division multiple access时分多址TE Terminal equipment终端设备TEI Terminal endpoint identifier终端点标识TFA Transfer allowed允许传送TFP Transfer allowed禁止窜送TI Transaction identifier事物处理标识TLV Type length and value类型长度和含义TM Test management测试管理TMN Telecommunication management network电信管理网TMSI Temporary mobile subscriber identity临时移动用户号码TN Timeslot number时隙号TON Type of number数字类型TRAU Trans coding and rate adaption unit码型转换和速率适配单元TRX Transceiver 收发信机TSTime slot时隙Tchnical Specification技术标准TSC Training sequence code训练序列代码TSDI Transceiver speech &data interface收发信机语音和数据接口TTCN Tree and tabular combined notation数表结合表示TUP Telephone user part电话用户部分TV Type sand value类型和含义UDI Unrestricted digital information无限制的数字信息UDUB User determined user busy有用户决定的用户忙UI Unmumbered information无序信息UPCMI Uniform PCM interface统一的PCM接口UPD Up to date最新的USSD Unstructured supplementary service data未组织的补充业务数据UUS User to user signaling supplementary service用户到用户的信令补充V Value only含义VAD Voice activity deteection语音激活检测VAP Video tex access point可视数据接入点VBS Voice broadcast service语音广播业务VGCS Voice group call service 语音组呼叫业务VLR Visitor location register接入位置寄存器VMSC Visited MSC被访问的MSC VPLMN Visited PLMN被接入的MSCVSC VideoTEX service center可视数据业务中心VSWR Voltage standing wave ratio 电压驻波比VSD Send state variable发送状态变量VTX The components dedicated to videotex service 专门用于可视数据的组件WARC World adminstrative radio conference世界无线电行政大会WS Word ststion工作站WPA Wrong password attempts密码错误。

GSM基础知识

GSM基础知识

GSM基础知识1、术语及概念1.1 GSM:全球移动通信系统(Global System for Mobile communications)。

1.2 CGI: 小区全球识别码用于识别一个位置区内的小区。

CGI=MCC+MNC+LAC+CI其中:MCC(Mobile Country Code):三个十进制数组成,取值范围为十进制的000 ~999。

MNC(Mobile Network Code):二个十进制数,取值范围为十进制的00~99。

LAC(Location Area Code):范围为1~65535。

CI(Cell Identity):小区识别代码,范围为0~65535。

1.3移动台的国际身份号码ISDN(MSISDN),即用户手机号码结构:MSISDN=CC+NDC+SNCC:国家码,即在国际长途电话通信网中的号码,中国为86;NDC:移动服务访问码,移动为135——139,联通为130。

SN:用户号码,其中H1H2H3是HLR标识码,表明用户所属的HLR例如GSM移动手机号码8613981080001,86是国家码CC;139便是NDC,用于识别网号;81080001是用户号码SN,8108用于识别归属区。

1.4国际移动用户识别码(International Mobile Subscriber Identity ,IMSI),用户身份证号码IMSI=MCC+MNC+MSINMCC:Mobile Country Code移动用户的国家号,中国是460;MNC:Mobile Network Code移动用户的所属PLMN网号;中国移动为00,联通为01例:460-00-XXXX…XXX(15位)1.5临时移动用户识别码(Temporary Mobile Subscriber Identity ,TMSI)用TMSI,用户身份保密、寻呼容量为IMSI两倍。

1.6 BCCH载波频率(BCCHNO)按照GSM系统要求,在每个小区中必须有且只有一个载频用于发送一些广播消息。

移动通信专业术语全解

移动通信专业术语全解

移动通信专业术语全解移动通信专业术语全解1.网络架构和协议1.1.GSM(Global System for Mobile Communications,全球移动通信系统)GSM是一种数字化的移动通信标准,它定义了移动通信网络的架构、协议以及语音和数据传输的方式。

1.2.CDMA(Code Division Multiple Access,码分多址)CDMA是一种数字化的移动通信技术,它使用码分多址来实现多用户同时发送和接收数据的能力。

1.3.3G(第三代移动通信技术)3G是一种高速移动通信技术,它支持更高的数据传输速率和更多的服务(如视频通话、移动广播等)。

1.4.4G(第四代移动通信技术)4G是一种更高速的移动通信技术,它提供更高的带宽和更低的延迟,支持更高质量的视频通话和流媒体服务。

1.5.5G(第五代移动通信技术)5G是一种新一代的移动通信技术,它将提供更高的带宽、更低的延迟以及更多的网络连接能力。

2.无线通信技术2.1.LTE(Long.Term Evolution,长期演进)LTE是一种高速无线通信技术,它为4G移动通信提供了基础网络架构和协议。

2.2.Wi.Fi(无线局域网)Wi.Fi是一种无线局域网技术,通过无线信号将计算机、方式等设备连接到互联网。

2.3.Bluetooth(蓝牙)蓝牙是一种短距离无线通信技术,用于在方式、耳机等设备之间传输数据。

2.4.NFC(Near Field Communication,近场通信)NFC是一种短距离无线通信技术,用于在移动设备之间进行数据交换或进行支付。

3.移动通信网络3.1.基站基站是移动通信网络中的无线电设备,用于与移动设备进行通信并提供无线信号覆盖。

3.2.蜂窝网络蜂窝网络是一种将通信区域划分为多个小区域的网络,每个小区域由一个基站提供无线信号覆盖。

3.3.漫游漫游是移动设备在不同移动通信网络之间切换的过程,使用户能够在不同地区保持与网络的连接。

移动通信专业术语全解

移动通信专业术语全解

移动通信专业术语全解1.GSM (Global System for Mobile Communications) 全球移动通信系统GSM原意为“移动通信特别小组”(Group Special Mobile),是欧洲邮电管理联合会(CEPT)为开发第二代数字蜂窝移动系统而在1982年成立的机构,制定适用于泛欧各国的一种数字移动通信系统的技术规范。

随着设备的开发与数字蜂窝移动通信网的建立,GSM逐步成为欧洲数字蜂窝移动通信系统的代名词。

后来,欧洲的专家们将GSM重新命名为“Global System for Mobile Communications”,即“全球移动通信系统”,也就是我们熟知的2G(2nd generation,第二代)网络。

欧洲邮电管理联合会(CEPT)下属的移动通信特别小组(GSM),在1989年颁布实施了GSM标准;1991年GSM系统正式在欧洲问世,网络开通运行,现已在全球获得广泛应用。

该系统空中接口使用时分多址技术,调制方式为GMSK(高斯滤波最小移频键控),频谱效率与用户容量较第一代的模拟蜂窝移动通信系统更高。

GSM频段分为GSM900、DCS1800与PCS1900三个频段,PCS1900则是个别国家使用的频段(如美国)。

通常所谓的GSM双频手机就是在GSM900与DCS1800频段切换的手机。

GSM900/1800分别是工作在890~960MHz/1710~1880MHz频段的。

GSM900的手机最大功率是8W,而DCS1800的手机的最大功率是1W。

GSM900:上行(移动台)890~915MHz,下行(基站)935~960MHz,双工间隔45MHz,小区半径0.5~35km。

DCS1800:上行1710~1785 MHz,下行1805~1880 MHz,小区半径2km(由于1800 MHz手机的低功率) 。

2.GPRS(General Packet Radio Service)通用分组无线业务3.EDGE ( Enhanced Data Rate for GSM Evolution ) 增强型数据速率GSM演进技术EDGE是一种从GSM向3G过渡中的重要技术,能够进一步提高移动数据业务传输速率。

移动通信技术名词解释

移动通信技术名词解释

移动通信技术名词解释在当今数字化的时代,移动通信技术已经成为我们生活中不可或缺的一部分。

从简单的语音通话到高速的数据传输,移动通信技术的发展日新月异。

然而,对于许多非专业人士来说,一些移动通信技术相关的名词可能会让人感到困惑。

接下来,让我们一起用通俗易懂的方式来解释一些常见的移动通信技术名词。

一、GSM(全球移动通信系统)GSM 是 2G 移动通信技术中的一种标准。

它采用了时分多址(TDMA)技术,将一个频率分成多个时隙,从而允许多个用户在同一频率上进行通信。

这就好比在一条马路上划分出不同的时间段,让不同的车辆在特定的时间通行。

GSM 具有覆盖范围广、成本相对较低等优点,曾经在全球范围内得到广泛应用。

二、CDMA(码分多址)CDMA 是另一种 2G 移动通信技术。

与 GSM 不同,CDMA 不是通过划分时隙来实现多用户通信,而是通过为每个用户分配一个独特的码序列来区分不同的用户。

这就像是给每个人一个独特的密码,只有拥有正确密码的人才能解读信息。

CDMA 具有抗干扰能力强、容量大等优点。

三、3G(第三代移动通信技术)3G 相比 2G 提供了更快的数据传输速度,能够支持视频通话、移动互联网等更多的应用。

其中,WCDMA(宽带码分多址)、CDMA2000 和 TDSCDMA 是 3G 技术的主要标准。

WCDMA 在全球范围内应用较为广泛,它提供了较高的数据传输速率,让用户能够更流畅地浏览网页、观看视频等。

四、4G(第四代移动通信技术)4G 以 LTE(长期演进)技术为代表,带来了更快的数据传输速度和更低的延迟。

这使得高清视频流、在线游戏等高带宽、低延迟的应用成为可能。

4G 的下载速度可以达到每秒几十兆甚至上百兆,让我们能够在移动设备上快速下载大型文件和享受高清在线内容。

五、5G(第五代移动通信技术)5G 是目前最新的移动通信技术,具有高速率、低延迟、大容量等特点。

它不仅能让我们的手机上网速度更快,还能支持物联网、智能工厂、自动驾驶等新兴应用。

GSM路测知识点整理

GSM路测知识点整理

路测分析知识要点(讨论稿)理论1.基本概念(名词解释)上行;下行;Timing Advance;Rx Level;Rx Quality;BER;FER;Full和Sub的区别。

上行:移动台(MS)向基站(BS)发送。

下行:基站(BS)向移动台(MS)发送。

对于Tmiming Advance:是指在呼叫进行期间,必须监视呼叫到达基站的时间,并由系统向移动台发送指令,随着移动台离开基站的距离,逐步指示移动台提前发送的时间。

时间调整于0—63比特之间的任意值。

Rx Level:接受电平值Rx Quality:接受话音质量BER:比特误码率FER:祯误码率FULL:全波SUB:半波2.帧结构各个控制信道的功能及其TDMA结构;MS各个状态所涉及的控制信道。

广播信道(BCH)——包括:频率校正信道(FCCH),同步信道(SCH),广播控制信道(BCCH)公共控制信道(CCCH)——包括:寻呼信道(PCH),随机接入信道(RACH),允许接入信道(AGCH)专用控制信道(DCCH)——包括:独立专用控制信道(SDCCH),慢速随路控制信道(SACCH),快速随路控制信道(FACCH)yer –3层3是网络层(OSI-层3)是信令网路功能,负责分配及选路。

层3以上是应用层,其协议是与涉及的功能实体相关。

层3主要负责系统的控制和管理把客户和系统控制过程的特定信息按一定的协议分组安排到指定的逻辑信道上。

层3包括三个基本子层:无限资源管理(RR),移动性管理(MM)和接续管理(CM)。

其中一个接续管理子层中包括多个呼叫控制(CC)单元为支持服务和短消息服务,在CM子层中还包括补充业务管理(SS)单元和短消息业务管理(SMS)单元。

A接口信令协议:⑴信号层一:A接口地物理层是基于数字传输2.048Mbit/S的pcm链路,除有一定数目的话音/数据信道外,还有传信令的时隙。

有关呼叫建立、切换、及释放等信令数据通常都可使用此信道。

gsm的名词解释

gsm的名词解释

gsm的名词解释随着科技的不断发展,全球移动通信系统(GSM)已经成为全球通信的主要标准之一。

本文将对GSM相关的名词进行解释和探讨,以便更好地理解这一通信系统。

1. GSM(全球移动通信系统):GSM是一种全数字化的移动通信技术,被广泛应用于全球范围内的移动通信网络。

它最早于20世纪80年代末在欧洲被引入,并逐渐成为全球通信标准。

2. SIM卡(Subscriber Identity Module):SIM卡是GSM网络中用户的身份标识和存储个人信息的芯片卡。

通过SIM卡,用户可以实现移动电话的身份认证、个人数据的存储和移动设备的移植。

3. IMEI号码(International Mobile Equipment Identity):IMEI是用于唯一标识移动设备的15位数字编码。

每部移动设备都有一个唯一的IMEI号码,用于在网络中识别和定位该设备。

4. 基站(Base Station):基站是GSM网络中负责无线信号传输和接收的设备。

它主要由天线、收发信机、控制器等组成,可以覆盖一定范围内的通信服务。

5. 基站控制器(Base Station Controller):基站控制器是GSM网络中管理和控制多个基站的设备。

它负责协调基站间的通信、频率分配和信号转发,是基站的中心控制单元。

6. 移动交换中心(Mobile Switching Center):移动交换中心是GSM网络中的核心设备,负责处理和转接移动电话之间的信号和语音通信。

它管理着用户的呼叫、数据传输等功能。

7. 短信(Short Message Service):短信是一种通过GSM网络发送的文字信息,通常限制在160个字符以内。

短信已成为人们日常沟通的重要方式之一,具有简洁、快捷的特点。

8. GPRS(General Packet Radio Service):GPRS是GSM网络的一种数据传输技术,可以实现移动互联网的连接。

与之前的数据业务相比,GPRS具有更快的传输速度和更高的数据容量。

CDMA术语

CDMA术语

CDMA术语1G第一代移动通信。

以模拟技术为基础的蜂窝无线电话系统。

1G无线系统在设计上只能传输语音流量,并受到网络容量的限制。

AMPS为1G网络的典型代表。

参见 AMPS.2G第二代移动通信。

以数字技术为基础的蜂窝无线电话系统。

2G系统的通话质量和容量均有所改进,可处理更多的通话量。

过去,2G系统只能提供语音和9.6-14.4 Kbps的电路交换数据业务。

目前,2G系统正逐渐被2.5G 和3G网络所取代。

2.5G2.5G是指比第二代移动通信更先进、但又未达到第三代移动通信要求的技术。

2.5G技术增补到2G网络中的目的在于提供分组数据业务,其数据传输速率为20-40 Kbps。

实际上,2.5G等同于增补到GSM网络上的GPRS技术。

3G第三代移动通信。

3G系统在设计上增加了语音容量,并提供高速数据传输。

根据国际电信联盟(ITU)的正式定义,3G网络必须可以从一个移动位置提供至少144 Kbps的传输速率,或必须可以从一个固定位置提供最高2 Mbps 的传输速率。

3G可向用户提供高速数据、先进的全球漫游业务,以及先进的多媒体功能。

CDMA是3G技术的基础,并已通过CDMA2000&reg;和WCDMA (UMTS)得以实现。

请登录.3DES三重数据加密标准。

作为一项美国联邦信息处理标准(Federal InformationProcessing Standard Publication)而发布的用于保护公开计算机数据的私钥对称加密算法。

DES最初是由IBM公司在二十世纪70年代末开发而来,后由美国国家标准与技术研究所(National Institute of Standards and Technology)加以推广。

3DES算法是DES算法的升级版本,它对数据进行三次编码,从而将安全性提高到原来的3倍。

参见 DES.3xCDMA2000所使用的频率均为1.25 MHz的三个载波。

802.11通常被称为“Wi-Fi”的802.11是指由电气和电子工程师学会(IEEE)颁布的适用于无线局域网(WLAN)的标准。

GSM中的常用术语总结

GSM中的常用术语总结

GSM中的常用术语总结mscbsc 移动通信论坛拥有30万通信专业人员,超过50万份GSM/3G等通信技术资料,是国内领先专注于通信技术和通信人生活的社区。

/O6l,A2J#F B"z0G!pA3 鉴权算法'E1d:x |,z!?,i6t-dA3/8 实现A3和A8功能的单独算法%V%m/f&n6`6J$YA5/1 加密算法A5/1A5/2 加密算法A5/2A5/X 加密算法A5/07A8 长生密钥的算法A8AB Access Burst 接入突发脉冲AC Access Class(C0 to C15)访问类别(从C0到C15)mscbsc 移动通信论坛拥有30万通信专业人员,超过50万份GSM/3G等通信技术资料,是国内领先专注于通信技术和通信人生活的社区。

(g2Z5U)d'n4DApplication Context 应用上下文ACC Automatic Congestion Control 自动拥塞控制ACCH Associated Control Channel 随路控制信道ACK ACKnowledgement 证实(用于信令)(g!J!U5A+Y#NACM Accumulated Call Meter 累计呼叫记录;Q&Y3U.E-Z0@ Address Complete Message 地址完全的消息MSCBSC 移动通信论坛)@0T/H8J5k.j6_)I*E5i+z-RACU Antenna Combining Unit 天线合成单元MSCBSC 移动通信论坛%u#Q;[%Z5U8W5v/N'T"`ADC Administration Center 管理中心Analogue to Digital Converter 模数转换器5e7?"X(f)aAND Abbreviated Dialing Number 缩位拨号ADPCM Adaptive Differential Pulse Code Modulation 自适应差分脉冲编码调制AE Application Entily 应用实体)N7m$K$T&} i%c5CAEC Acoustic echo control 回音控制 Y8T&[5^,m4J%y;WAE Additional elementary functions 附加基本功能移动通信,通信工程师的家园,通信人才,求职招聘,网络优化,通信工程,出差住宿,通信企业黑名单9x+J8B6]0t/O9sAGCH Access grant channel 接如允可信道MSCBSC 移动通信论坛3f-B4f1B2V1w7A Ai Actions indictor 动作指示器AoC Advice of charge 费用建议移动通信,通信工程师的家园,通信人才,求职招聘,网络优化,通信工程,出差住宿,通信企业黑名单)o)M0p-m.M)?9j8eAoCC Advice of charge charging supplementary service 费用建议信息补充业务移动通信,通信工程师的家园,通信人才,求职招聘,网络优化,通信工程,出差住宿,通信企业黑名单)k$W$b,F%f$V AoCI Advice of charge information Supplementary service 费用建议信息补充业务ASE Application service element 应用服务单元| 国内领先的通信技术论坛#i7C,m9Y;C%G+y-[ LASN.1 Abstract syntax notation one 抽象语法表示1ARFCN Absolute radio frequency channel number 绝对无线频率信道号ARQ Automatic request for retransmission 自动重法请求| 国内领先的通信技术论坛%f"R,d!Q&AA TT(flag) Attach 附着(用于信令)AU Access unite 访问单元AuC Authentication center 鉴权中心| 国内领先的通信技术论坛3J(P:{+K%J9p5Q/Z AUT( H ) Authentication 鉴权BA BCCH allocation BCCH 分配BAIC Barring of all incoming calls supplementary service 限制所有呼入呼叫的补充业务BAOC Barring of all outgoing calls supplementary service 限制所有呼出呼叫的补充业务.o8M/b&e!o'v*A'pBCC Base transceiver station (BTC) color channel 基站收发器代码MSCBSC 移动通信论坛&^"@6E4p*Y6Z!H%qBCCH Broadcast control channel 广播控制信道MSCBSC 移动通信论坛/E8v3V.D2`1eBCD Binary coded decimal 二进制编码的十进制MSCBSC 移动通信论坛5M6U"r2k8X&^"GBCF Base station control function 基站控制功能BCIE Bearer capability information 载波容量信息单元MSCBSC 移动通信论坛'Y$U7K4~!W/k6FBER Bit error rate 误码率*[ X7R1e+L9SBFI Bad frame indication 坏帧指示.u:S'v:Z5f jBI all barring of incoming call supplementary service 所有的限制呼入呼出补充业务BICRoam Barring of incoming calls when roaming outside the room PLMN country supplement service 在注册PLMN的国家之外限制呼入呼出的补充业务BN Bit number 比特数mscbsc 移动通信论坛拥有30万通信专业人员,超过50万份GSM/3G等通信技术资料,是国内领先专注于通信技术和通信人生活的社区。

GSM专业术语解析

GSM专业术语解析

备注TDMA信道上一个时隙中的信息格式称为突发脉冲序列,gb:保护时间;TB尾比特;:用于携带TCH及除RACHA,SCH和FCCH以外的控制信道上的信息,“57个加密比特”是客户数据或话音,再加“1”个比特用作借用标志。

借用标志是表示此突发脉冲序列是否被FACCH信令借用。

“26个训练比特”是一串已知比特,用于供均衡器产生信道模型(一种消除时间色散的方法)。

“TB”尾比特总是000帮助均衡器判断起始位和中止位。

“GP”保护间隔,8.25个比特(相当于大约30µs),是一个空白空间。

由于每载频最多8个客户,因此必须保证各自时隙发射时不相互重迭。

尽管使用了时间调整方案,但来自不同移动台的突发脉冲序列彼此间仍会有小的滑动,因此8.25个比特的保护可使发射机在GSM建议许可范围内上下波动。

用于移动台的频率同步,它相当于一个带频移的未调载波。

此突发脉冲序列的重复称FCCH,见图 3-10。

图中“固定比特”全部是0,使调制器发送一个未调载波。

“TB”和“GP”同普通突发脉冲序列中的“TB”和“GP”:用于移动台的时间同步,它包括一个易被检测的长同步序列并携带有TDMA帧号和基站识别码(BSIC)信息。

这种突发脉冲序列的重复称为SCH,用于随机接入,它有一个较长的保护间隔,这是为了适应移动台首次接入(或切换到另一个BTS)后不知道时间提前量而设置的。

移动台可能远离BTS,这意味着初始突发脉冲序列会迟一些到达BTS,由于第一个突发脉冲序列中没有时间调整,为了不与下一时隙中的突发脉冲序列重叠,此突发脉冲序列:此突发脉冲序列在某些情况下由BTS发出,不携带任何信息。

它的格式与普通突发脉冲序列相同,其中加密比特改为具有一定比恃模型的混合比特相当于公众电话网内的用户电话号码,是供用户拨打的公开号码,是唯一的,它的号码结构如下:MSISDN = CC + NDC + SN. CC为国家码,中国是86;NDC为国内目的地码;SN为用户号码。

(通信企业管理)移动通信专业术语全解精编

(通信企业管理)移动通信专业术语全解精编

(通信企业管理)移动通信专业术语全解移动通信专业术语全解(基础类)1.GSM(GlobalSystemforMobileCommunications)全球移动通信系统GSM原意为“移动通信特别小组”(GroupSpecialMobile),是欧洲邮电管理联合会(CEPT)为开发第二代数字蜂窝移动系统而于1982年成立的机构,制定适用于泛欧各国的壹种数字移动通信系统的技术规范。

随着设备的开发和数字蜂窝移动通信网的建立,GSM逐步成为欧洲数字蜂窝移动通信系统的代名词。

后来,欧洲的专家们将GSM重新命名为“GlobalSystemforMobileCommunications”,即“全球移动通信系统”,也就是我们熟知的2G(2ndgeneration,第二代)网络。

欧洲邮电管理联合会(CEPT)下属的移动通信特别小组(GSM),于1989年颁布实施了GSM标准;1991年GSM系统正式于欧洲问世,网络开通运行,现已于全球获得广泛应用。

该系统空中接口采用时分多址技术,调制方式为GMSK(高斯滤波最小移频键控),频谱效率和用户容量较第壹代的模拟蜂窝移动通信系统更高。

GSM频段分为GSM900、DCS1800和PCS1900三个频段,PCS1900则是个别国家使用的频段(如美国)。

壹般所谓的GSM双频手机就是于GSM900和DCS1800频段切换的手机。

GSM900/1800分别是工作于890~960MHz/1710~1880MHz频段的。

GSM900的手机最大功率是8W,而DCS1800的手机的最大功率是1W。

GSM900:上行(移动台)890~915MHz,下行(基站)935~960MHz,双工间隔45MHz,小区半径0.5~35km。

DCS1800:上行1710~1785MHz,下行1805~1880MHz,小区半径2km(由于1800MHz手机的低功率)。

2.GPRS(GeneralPacketRadioService)通用分组无线业务GPRS经常被描述成“2.5G”,它通过利用GSM网络中未使用的TDMA 信道,提供中速的数据传递。

GSM专业术语总结

GSM专业术语总结

GSM网络术语●GSM——数据蜂窝移动通信系统●MSC——移动业务交换中心●BSS——基站系统●BSC——基站控制器●BTS——基站收发信台●MS——移动台●OSS——操作与维护子系统●PSTN——公众交换电话网●ARFCN——无线频率信道编号●RF——载频●ME——移动设备●ISDN——综合业务数字网●IWF——互通功能单元●SIM——智能卡、用户识别卡●TMSI——临时移动用户身份识别号●LAI——位置区识别号●MSISDN——移动台的电话号码●XCDR——压缩编码器●TRAU——压缩编码器速率适配单元移动业务交换中心●EIR——设备识别寄存器●AUC——鉴权中心●IWF——网络互通功能●EC——回声消除器●DTX——不连续发射●MSRN——移动用户漫游号●IWF——网络互通功能●NMC——网络管理中心●OMC——操作与维护中心●TUP——电话用户部分●TMA——塔顶放大器●BSSMAP——基站系统管理应用部分●DTAP——直接传输应用部分●AM——幅度调制●FM——频率调制●PSK——相移键控●TCH——业务通道●SCH——同步通道●PCH——寻呼通道●GMSK——高斯最小相移键控●BCCH——广播控制通道●CCCH——通用控制通道●DCCH——专用控制通道●FCCH——频率控制信道●RACH——随机接入通道●AGCH——接入允许通道●CBCH——小区广播通道●SDCCH——独立专用控制通道●SACCH——慢速随路控制通道●FACCH——快速随路控制通道●MBCCH——主要的广播控制通道GPRS网络术语●SGSN——服务GPRS支持节点,在本SGSN服务区为MS分配IP地址、数据的路由和转发、加密、会话管理、与其它实体设备之间的接口连接、话单记录针对无线资源使用。

●GGSN——关口GPRS支持节点,好似路由(网关)连接其它网络,完成MS与外网通信建立、将用户的数据发往正确的SGSN、话单记录针对连接外网。

GSM常用术语总结

GSM常用术语总结

A3A3/8A5/1A5/2A5/XA8AB Access BurstAccess Class(C0 to C15)ACApplication ContextACC Automatic Congestion ControlACCH Associated Control ChannelACK ACKnowledgementAccumulated Call MeterACMAddress Complete MessageACU Antenna Combining UnitAdministration CenterADCAnalogue to Digital ConverterAND Abbreviated Dialing NumberADPCM Adaptive Differential Pulse Code ModulationAE Application EntilyAEC Acoustic echo controlAE Additional elementary functionsAGCH Access grant channelAi Actions indictorAoC Advice of chargeAoCC Advice of charge charging supplementary serviceAoCI Advice of charge information Supplementary serviceASE Application service elementASN.1Abstract syntax notation oneARFCN Absolute radio frequency channel numberARQ Automatic request for retransmissionATT(flag)AttachAU Access uniteAuC Authentication centerAUT( H )AuthenticationBA BCCH allocationBAIC Barring of all incoming calls supplementary service 限BAOC Barring of all outgoing calls supplementary serviceBCC Base transceiver station (BTC) color channelBCCH Broadcast control channelBCD Binary coded decimalBCF Base station control functionBCIE Bearer capability informationBER Bit error rateBFI Bad frame indicationBI all barring of incoming call supplementary serviceBICRoam Barring of incoming calls when roaming outside the room PLMN country supplement service在注BN Bit numberBO All barring of outgoing call supplementary serviceBOIC Barring of outgoing international calls supplementary serviceBOICexHC Barring of outgoing international calls except those directed to the home PLMN country supplementary service 除了直接呼BS Bearer serviceBSG Basic service (group)Basic service groupBSC Base station controllerBSIC Base transceiver station identity codeBSICNCELL BSIC of an adjacent cellBSS Base station systemBSSAP Base station system application partBSSMAP Base station system management application partBSSOMAP Base station system operation management application partBTS Base transceiver stationC ConditionalCA Cell allocationCAI Charge advice informationCB Cell broadcastCBC Cell broadcast centerCBCH Cell broadcast channelCBMI Cell broadcast message identifierCC Country codeCall controlCCBS Completion of calls to busy subscriber supplementary serviceCCCH Common control channelCCF Conditional call forwardingCCH Control channelCCITT The international telegraph and telephone consultative committeeCCM current call meterCCP Capability /configuration parameterCCPE Control channel protocol entityCct CircuitCDUR Chargeable DURationCED Call station identifierCEID Central equipment identifier registerCEND End of charge pointCEPT Conference of European post and telecommunication administrationCF Conversion facilityCFB All call forwarding serviceCall forwarding on mobile subscriber busy supplementary service CFNRc Call forwarding on mobile subscriber not reachable supplementary service CFNRy Call forwarding on no reply supplementary serviceCFU Call forwarding unconditional supplementary serviceCHP Charging pointCHV Card holding verification informationCI Cell identity CUG indexCIR Carrier interference ratioCKSN Ciphering key sequence numberCLI Calling line identityCLIP Calling line identification presentation supplementary service CLIR Calling line identification restriction supplementary service CM Connection managementCMD commandCMM Channel mode modifyCNG CalliNG toneCOLI Connected line identityCOLP Connected line identification presentation supplementary service COLR Connected line identification restriction supplementary service COM COmpleteCONNACK CONNect acknowledgement C/R Command/response field bitCRC Cyclic redundancy checkCRE Call Reestablishment procedureCSPDN Circuit switching public data networkCT Call transfer supplement serviceChannel testChannel typeCTR Common technical regulation CUG Close user group supplementary service CW Call waiting supplementary service DAC Digital to analogue converterD B Dummy burstDCCH Dedication control channel DCE Data circuit terminating equipment DCF Data communication function DCM Data conversion moduleDCS1800Digital cellular system at 1800MHz DET DetachDISC DisconnectDL Data link(layer)DLCI Data link connection identifierDLD Data link discriminatorDm Control channel (isdn )DMR Digital mobile radioDNIC Data network identifierDP Dial /dialed pulseDRX Discontinuous receptionDSE Data switch exchangeDSI Digital speech interpolationDSSI Digital subscriber signaling No.1DTAP Direct transfer application partDTE Data terminal equipmentDTMF Dual tone multi FrequencyDTX Discontinuous transmissionEA External alarmsEBSG Elementary basic service groupECM Error correction modeEc/No Ratio of energy per modulating bit to the noise spectral density ECT Explicit call transfer supplementary serviceEEL Electric echo lossEIR Equipment identity registerEL Echo lossEMC Electromagnetic compatibilityEMI Electromagnetic interferenceEmlpp Enhanced multilevel preecednce and preemption service EMMI Electrical man machine interfaceEPROM Erasable programmable read only memoryERP Ear reference pointERR errorETR ETSI technical reportETS European telecommunication standardETSI European telecommunication standard instituteFA Full allocation fax adaptorFAC Final assembly codeFACCH Fast associated control channelFACCH/F Fast associated control channel /full rateFACCH/H Fast associated control channel /half rate FB Frequency correction burstFCCH Frequency correction channelFCS Frame check sequenceFDM Frequency division multiplexFDN Fixed digital numberFEC Forwarding error correctionFER Frame erasure ratioFH Frequency hoppingFN Frame numberFR Full rateFTA Final type approvalFTAM File transfer ,access and manipulation FTN Forwarded and numberGCR Group call registerGMSC Gateway mobile service switching center GMSK Gaussian minimum shift keying modulation GPA Gsm plmn areaGPRS General packet radio serviceGPRS General power supply uniteGSA Gsm system areaGSM Global system for mobile communication GSM PLMN Gsm public land mobile network GT Global titleHDLC High level data link controlHLC High layer compatibilityHO HANDOverHOLD Call hold supplementary serviceHOLMN Home PLMNHPU Hand portableHSN Hopping sequence numberI Information frameIA Incoming accessIAM Initial address messageIC Interlock codeICB Incoming call barredICC Inte grated circuit cardIC Interlock codeICM Incall modificationID Identification/identity/identifer IDN Integrated digital networkIE Signaling information elementIEI Information element identifierIETS Interim European telecommunication standart IMEI international mobile station equipment identity IMSI International mobile subscriber identity IN Interrogting nodeISC International switch centerISDN Integrated service digital network ISO International organization for standardzation ISUP Isdn user part (of signal system No.7) ITC Information transfer capabilityIWF Interworking functionsIWMSC Interworking MSCIWU Interworking UinteKc Ciphering keyKi Individual subscriber authenticationL3Layer 3LA Location areaLAC Location area codeLAI Location area identityLAN Local area networkLAPB Link access protocol balancedLAPDm Link access protocol on the channelLCN Local communication networkLE Local exchangeLLC Low layer compatibilityLMSI Local mobile station identityLNA Low number digledLND Last number dialedLPLMN Local PLMNLR Location registerLTE Local terminal emulatorLU Local unitsLV Length and valueM MandatoryMA Mobile allocationMACN Mobile allocationMAF Mobile allocation channel numberMAH Mobile access hunting supplementary service MAI Mobile allocation indexMAIO Mobile allocation index offsetMAP Mobile allocation partMCC Mobile country codeMCI Malicious call identification supplementary service MD Mediation deviceMDL Mobile management data linkME Mobile equipmentMEF Maintenance entity functionsMF MultiframeMHS Message handling systemMIC Mobile interface controllerMLSE Maximum likelihood systemMan machineMMMobility managementMME Mobility management entityMMI Man machine interfaceMNC Mobile network codeMO Mobile originated callMoU Memorandum of understandingMPH Mobile management physicalMPTY Multiparty supplementary serviceMRP Mouth reference pointMS Mobile stationMSC Mobile service switch centerMSCM Mobile station class markMSCU Mobile station control unite MSISDN Mobile station ISDNMSRN Mobile station roaming numberMT Mobile terminatedMT Mobile terminationMTBF Mean time between failureMTC Mobile terminate callMTM Mobile to mobileMTP Mark upMU Multi user mobile stationMUMS Multiuser mobile stationN/W NetworkNB Normal brustNBIN A parameter in the hopping sequence NCC Network PLMN color codeNCELL Neighboring cellNDC National destination codeNDUB Network determined user busy NE Network elementNEF Network element functionNF Network functionNIC Network independent clockingNM Network managementNMC Network management centerNMSI National mobile station identification number NPI Number plan identifierNSAP Network service access pointNT No transparentNTABB New type approval advisoryNUA Network user accessNUI Network user identificationNUP National user partO OptionalOA Outgoing accessO&M Outgoing & maintenanceOACSU Off air call setupOCB Outgoing calls barred within the CUGOD Optional for operators to implement for their aim OLR Overall loudness ratingOMC Operations and maintenance centerOML Operations and maintenance linkOMS-B Operations and maintenance system for the BBS OS Operation systemOSI Open system interconnectionOSI RM OSI reference modelPABX Private automatic branch exchangePAD Packet assemble /disassemblyPCH Paging channelPCM Pulse code modulationPD Protocol discriminatorPDN Public data networkPH Packet handlePHI Packet handle interfacePI Presentation indicatorPICS Protocol implementation conformance statement PIN Personal identification codePLXT Protocol implementation extra information for testing PLMN Public lands mobile networkPP Performance managementPOI Point of interconnectionPP Point to pointPPCC Peripheral processor for CCSS 7PPLD Peripheral processor for LOADPREF CUG Preferential CUG PS Location probabilityPSPDN Packet switched public data networkPSTN Packet switched telephone networkPUCT Price per unit currency tablePUK PIN unblock keyPW Pass wordQA Q adapterQAF Q adapter functions QQOS Quality of serviceRA Random mode request information fieldRAB Random access brustRACH Random access channelRAND Random numberRBER Residual bit error ratioRDI Restricted digital informationREC RecommendationREJ e RejectionREL ReleaseREQ RequestRF Radio frequencyRFCI Radio frequency channelRFCH Radio frequency channelRFN Reduced TDMA frame numberRFU Reserved for future useRLP Radio link protocolRLR Receiver loudness ratingRMS Root mean squareRNTABLE Table of 128 integer in the hopping sequence ROSE Remote operation service elementRR Radio resourceRSE Radio system entityRSL Radio signaling linkRSZI Regional subscription zone identityRTE Remote terminal emulatorRX Receiver signal levelRXAMOD Received antenna moduleRXMUCO Receiver multi couplerRXQUAL Received signal qualityS/W SoftwareSABM Set asynchronous balanced modeSACCH Slow associated control channelSACCHG/4Slow associated control channel/sdcch/4SACCH/8Slow associated control channel/sdcch/8SACCH/T Slow associated control channel/traffic channel SACCH/TF Slow associated control channel/traffic channel full rate SAP Slow associated control channel/traffic channel half rate SAPI Service access point indicatorSB SynchronizationService center SCService codeSCCP Signaling connection control partSCH Synchronization channelSDCCH Standalone dedicated control channelSDL Specification descriptionSDT SDL development toolSDU Service data unitSE Support entitySEF Support entity functionsSFH Slow frequency hoppingSI Screening indicationSIM Subscriber identitySLR Send loudness ratingSLTM Signaling link test messageSMAP System managementSM Security managementSME Short message entitySMG Special mobile groupSMISE Special management information service elementSMS Short message serviceSMSCB Short message service cell broad castSMSSC Short message service centerSMS/PP Short message service/point to pointSMT Short message terminalSN Subscriber numberSNR Serial number RSOA Suppress outgoing accessService providerSPSignaling PointSignaling point codeSPCSuppress Preferential CUG SRES Signed RESponseSupplementary service system simulatorSSSystem SimulatorSSC Supplementary service control stringSSN Subsystem NO 7SS7/SS#7Signaling system NO 7STMR Side tone masking ratingSTP Signaling transferSVN Software versionSWM Software managementT TimerTerminal AdaptorTATime advanceTAC Type approval CodeTAF Terminal adaptation FunctionTBR Technical basis for regulationTC Transaction capabilitiesTCAP Transaction capabilities application partTCH Traffic channelTCH/F A full rate tchTCH/F2.4 A full rate tch/2,4 kTCH/F4.8 A full rate tch /4.8kTCH/F9.6 A full rate tch/9.6kTCH/FS A full rate speech chTCH/HS A half rate tchTCI Transeceiver control interfaceTCTR Technical committee technical report TDMA Time division multiple accessTE Terminal equipmentTEI Terminal endpoint identifierTFA Transfer allowedTFP Transfer allowedTI Transaction identifierTLV Type length and valueTM Test managementTMN Telecommunication management network TMSI Temporary mobile subscriber identity TN Timeslot numberTON Type of numberTRAU Trans coding and rate adaption unitTRX TransceiverTime slot TSTchnical SpecificationTSC Training sequence codeTSDI Transceiver speech &data interface TTCN Tree and tabular combined notationTUP Telephone user partTV Type sand valueUDI Unrestricted digital informationUDUB User determined user busyUI Unmumbered informationUPCMI Uniform PCM interfaceUPD Up to dateUSSD Unstructured supplementary service data UUS User to user signaling supplementary service V Value onlyVAD Voice activity deteectionVAP Video tex access pointVBS Voice broadcast serviceVGCS Voice group call serviceVLR Visitor location registerVMSC Visited MSCVPLMN Visited PLMNVSC VideoTEX service centerVSWR Voltage standing wave ratioVSD Send state variableVTX The components dedicated to videotex serviceWARC World adminstrative radio conference WS Word ststionWPA Wrong password attempts。

GSM、GPRS网络术语大全

GSM、GPRS网络术语大全

GSM网络术语●GSM——数据蜂窝移动通信系统●MSC——移动业务交换中心●BSS——基站系统●BSC——基站控制器●BTS——基站收发信台●MS——移动台●OSS——操作与维护子系统●PSTN——公众交换电话网●ARFCN——无线频率信道编号●RF——载频●ME——移动设备●ISDN——综合业务数字网●IWF——互通功能单元●SIM——智能卡、用户识别卡●TMSI——临时移动用户身份识别号●LAI——位置区识别号●MSISDN——移动台的电话号码●XCDR——压缩编码器●TRAU——压缩编码器速率适配单元移动业务交换中心●EIR——设备识别寄存器●AUC——鉴权中心●IWF——网络互通功能●EC——回声消除器●DTX——不连续发射●MSRN——移动用户漫游号●IWF——网络互通功能●NMC——网络管理中心●OMC——操作与维护中心●TUP——电话用户部分●TMA——塔顶放大器●BSSMAP——基站系统管理应用部分●DTAP——直接传输应用部分●AM——幅度调制●FM——频率调制●PSK——相移键控●TCH——业务通道●SCH——同步通道●PCH——寻呼通道●GMSK——高斯最小相移键控●BCCH——广播控制通道●CCCH——通用控制通道●DCCH——专用控制通道●FCCH——频率控制信道●RACH——随机接入通道●AGCH——接入允许通道●CBCH——小区广播通道●SDCCH——独立专用控制通道●SACCH——慢速随路控制通道●FACCH——快速随路控制通道●MBCCH——主要的广播控制通道GPRS网络术语●SGSN——服务GPRS支持节点,在本SGSN服务区为MS分配IP地址、数据的路由和转发、加密、会话管理、与其它实体设备之间的接口连接、话单记录针对无线资源使用。

●GGSN——关口GPRS支持节点,好似路由(网关)连接其它网络,完成MS与外网通信建立、将用户的数据发往正确的SGSN、话单记录针对连接外网。

GSM基础知识

GSM基础知识

GSM基础知识1、GSM调制方式:GMSK(高斯滤波最小频移键控);2、多址技术:TDMA/FDMA/CDMA;3、GSM手机调整发射功率等级的步长为:2dB;GSM900移动台的最大输出功率8W;DCS1800移动台的最大输出功率1W;4、GSM系统组成部分:MS/BSS/NSS;5、Um:ms between bts、A:bsc between msc;abis:bts between bsc;6、IMSI=MCC+MNC+MSIN7、CGI=LAI(MCC+MNC+LAC)+CI;8、BSIC=NCC+BCC;(6bit编码)9、MSISDN=CC+NDC(国内接入号:130~139)+SN(如:8613506991049);10、位置更新的几种原因:常规位置更新、IMSI附着与分离、开关机;11、12、在移动通信中,无线信号从发射机到达接收机的主要途径有(A、B、C、D)。

A. 直射B. 反射C. 绕射D. 散射E. 衍射13、天线增益单位为(B,C)。

A. dBB.dBiC. dBdD. dBcE.dBm14、快衰落电场强度概率密度函数服从( C );快衰落主要有哪几种形式(B、D、E );用来克服快衰落的技术有哪些(G、I、K )。

A、对数正态分布B、时间选择性衰落C、瑞利分布D、空间选择性衰落E、频率选择性衰落F、天气选择性衰落G、信道交织技术H、傅立叶变换I、空间分集技术K、RAKE接收机技术15、GSM最大覆盖距离为35km,计算如下:1/2*3.7us/bit*63bit*c=35km16、功率控制-----信号在无线传送过程中,为了减少干扰,提高频谱利用率,延长电池寿命,会改变传送功率。

17、抗快衰落措施-分集:•时间分集:符号交织、检错、纠错编码•空间分集:采用主、分集天线接收。

主、分集天线的接收信号不具有同时衰减的特性。

基站接收机对一定时间范围内不同时延信号的均衡能力也是一种空间分集的形式。

GSM中的常用术语总结

GSM中的常用术语总结

GSM中的常⽤术语总结A3 鉴权算法A3A3/8 实现A3和A8功能的A5/1 加密算法A5/1A5/2 加密算法A5/2A5/X 加密算法A5/07A8 长⽣密钥的算法A8AB Access Burst 接⼊突发脉冲AC Access Class(C0 to C15)访问类别(从C0到Application Context 应⽤上下⽂ACC Automatic Congestion Control ⾃动拥塞控制ACCH Associated Control Channel 随路控制信道ACK ACKnowledgement 证实(⽤于信令)ACM Accumulated Call Meter 累计呼叫记录Address Complete Message 地址完全的消息ACU Antenna Combining Unit 天线合成单元ADC Administration Center 管理中⼼Analogue to Digital Converter 模数转换器AND Abbreviated Dialing Number 缩位拨号ADPCM Adaptive Differential Pulse Code Modulation ⾃适应差分脉冲编码AE Application Entily 应⽤实体AEC Acoustic echo control 回⾳控制AE Additional elementary functions 附加基本功能AGCH Access grant channel 接如允可信道Ai Actions indictor 动作指⽰器AoC Advice of charge 费⽤建议AoCC Advice of charge charging supplementary service 费⽤建议信息补充业AoCI Advice of charge information Supplementary service 费⽤建议信息补充业ASE Application service element 应⽤服务单元ASN.1 Abstract syntax notation one 抽象语法表⽰1 ARFCN Absolute radio frequency channel number 绝对⽆线频率信道号ARQ Automatic request for retransmission ⾃动重法请求ATT(flag) Attach 附着(⽤于信令) AU Access unite 访问单元AuC Authentication center 鉴权中⼼AUT( H ) Authentication 鉴权BA BCCH allocation BCCH 分配BAIC Barring of all incoming calls supplementary service 限制所有呼⼊呼叫的补BAOC Barring of all outgoing calls supplementary service 限制所有呼出呼叫的BCC Base transceiver station (BTC) color channel 基站收发器代码BCCH Broadcast control channel ⼴播控制信道BCD Binary coded decimal ⼆进制编码的⼗进制BCF Base station control function 基站控制功能BCIE Bearer capability information 载波容量信息单元BER Bit error rate 误码率BFI Bad frame indication 坏帧指⽰BI all barring of incoming call supplementary service 所有的限制呼⼊呼出BICRoam Barring of incoming calls when roaming outside the room PLMNcountry supplement service在注册PLMN的国家务BN Bit number ⽐特数BO All barring of outgoing call supplementary service 所有限制呼⼊呼出的BOIC Barring of outgoing international calls supplementaryservice限制国际呼叫的补充BOICexHC Barring of outgoing international calls except thosedirected to the home PLMN country supplementary service除了直接呼叫注册的⼊呼出的补充业务BS Bearer service 载波服务BSG Basic service (group) 基本服务Basic service group 基本服务组BSC Base station controller 基本控制器BSIC Base transceiver station identity code 基站识别码BSICNCELL BSIC of an adjacent cell 相邻⼩区BSIC BSS Base station system 基站⼦系统BSSAP Base station system application part 基站⼦系统应⽤部分BSSMAP Base station system management application part 基站⼦系统管理应⽤BSSOMAP Base station system operation management application part 基站⼦系统操作和维BTS Base transceiver station 基站C Conditional 有条件的CA Cell allocation ⼩区分配CAI Charge advice information 收费建议信息CB Cell broadcast ⼩区⼴播CBC Cell broadcast center ⼩区⼴播中⼼CBCH Cell broadcast channel ⼩区⼴播信道CBMI Cell broadcast message identifier ⼩区⼴播信息表⽰符CC Country code 国家代码Call control 呼叫控制CCBS Completion of calls to busy subscriber supplementaryservice对占线⽤户的完成呼CCCH Common control channel 公⽤控制信道CCF Conditional call forwarding 条件呼叫转移CCH Control channel 控制信道CCITT The international telegraph and telephone consultativecommittee国际电报电话质询委CCM current call meter 当前呼叫纪录CCP Capability /configuration parameter 容量/配置参数CCPE Control channel protocol entity 控制信道协议实体Cct Circuit 电路CDUR Chargeable DURation 计费时间CED Call station identifier 被呼叫的基站表⽰符CEID Central equipment identifier register 中央设备寄存器CEND End of charge point 计费点CEPT Conference of European post and telecommunicationadministration欧洲邮政和远程通信CF Conversion facility 变换设施CFB All call forwarding service 所有的呼叫转移服务Call forwarding on mobile subscriber busy supplementaryservice遇忙呼叫转移补充服CFNRc Call forwarding on mobile subscriber not reachablesupplementary service不再服务区呼叫转移CFNRy Call forwarding on no reply supplementary service ⽆应答呼叫转移补充CFU Call forwarding unconditional supplementary service ⽆条件呼叫转移补充CHP Charging point 计费点CHV Card holding verification information 卡持有者验证信息CI Cell identity CUG index ⼩区标⽰CUG索引CIR Carrier interference ratio 载波⼲扰⽐CKSN Ciphering key sequence number 密钥序列码CLI Calling line identity 呼叫线路标⽰CLIP Calling line identification presentation supplementaryservice呼叫线路标⽰显⽰补CLIR Calling line identification restriction supplementaryservice呼叫线路标⽰限制补CM Connection management 连接管理CMD command 命令CMM Channel mode modify 信道模式更改CNG CalliNG tone 呼叫⾳调COLI Connected line identity 连接线路标⽰COLP Connected line identification presentation supplementaryservice连接的线路标⽰显⽰COLR Connected line identification restriction supplementaryservice连接的线路标⽰限制COM COmplete 完成CONNACK CONNect acknowledgement 连接确认C/R Command/response field bit 命令/相应⽐特CRC Cyclic redundancy check 冗余循环校验CRE Call Reestablishment procedure 呼叫重建⽴过程CSPDN Circuit switching public data network 电路交换公众数据⽹CT Call transfer supplement service 呼叫转移补充业务Channel test 信道测试Channel type 信道类型CTR Common technical regulation 通⽤技术规定CUG Close user group supplementary service 闭合⽤户组补充业务CW Call waiting supplementary service 呼叫等待补充业务DAC Digital to analogue converter 数模转换D B Dummy burst 填充突发脉冲DCCH Dedication control channel 专⽤控制信道DCE Data circuit terminating equipment 数据电路终端DCF Data communication function 数据通信功能DCM Data conversion module 数据转换模块DCS1800 Digital cellular system at 1800MHz 1800MHz数字蜂窝系并称双频⽹DET Detach 分离DISC Disconnect 断开连接DL Data link(layer) 数据链路层DLCI Data link connection identifier 数据链路连接标⽰DLD Data link discriminator 数据链路鉴别器Dm Control channel (isdn ) 控制信道(⽤于isd DMR Digital mobile radio 数字⽆线移动DNIC Data network identifier 数据⽹标⽰DP Dial /dialed pulse 拨号脉冲DRX Discontinuous reception ⾮连续的接受DSE Data switch exchange 数据交换DSI Digital speech interpolation 数字语⾳插值DSSI Digital subscriber signaling No.1 ⼀号数字⽤户信令DTAP Direct transfer application part 直接传送应⽤部分DTE Data terminal equipment 数据终端DTMF Dual tone multi Frequency 双⾳频DTX Discontinuous transmission ⾮连续传送EA External alarms 外部警告EBSG Elementary basic service group 基本服务组ECM Error correction mode 差错纠正模式Ec/No Ratio of energy per modulating bit to the noise spectraldensity每调制⽐特功率和噪ECT Explicit call transfer supplementary service 显⽰呼叫转移补充业EEL Electric echo loss 电⼒回波损耗EIR Equipment identity register 设备标⽰寄存器EL Echo loss 回波损耗EMC Electromagnetic compatibility 电磁兼容性EMI Electromagnetic interference 电磁⼲扰Emlpp Enhanced multilevel preecednce and preemption service 增强多层优先服务EMMI Electrical man machine interface 电⼒⼈机接⼝EPROM Erasable programmable read only memory 可擦除的可编程只读ERP Ear reference point 听⼒产参考点ERR error 错误ETR ETSI technical report ETSI 的技术报告ETS European telecommunication standard 欧洲电信标准ETSI European telecommunication standard institute 欧洲电信标准协会FA Full allocation fax adaptor 完全分配传真适配器FAC Final assembly code 最终集结码FACCH Fast associated control channel 快速随路信道FACCH/F Fast associated control channel /full rate 快速随路信道/权速率FACCH/H Fast associated control channel /half rate 快速随路信道/半速率FB Frequency correction burst 突发脉冲频率矫正FCCH Frequency correction channel 频率矫正信道FCS Frame check sequence 帧检查序列FDM Frequency division multiplex 频分多路复⽤FDN Fixed digital number 固定拨号FEC Forwarding error correction 前向纠错FER Frame erasure ratio 帧消除⽐率FH Frequency hopping 跳频FN Frame number 帧号FR Full rate 全速率FTA Final type approval 最终型号标准FTAM File transfer ,access and manipulation ⽂件传输访问和使⽤FTN Forwarded and number 前转号码GCR Group call register 呼叫组寄存器GMSC Gateway mobile service switching center 移动业务交换中⼼⽹GMSK Gaussian minimum shift keying modulation ⾼斯整形滤波最⼩频GPA Gsm plmn area GSM PLMN 区域GPRS General packet radio service 通⽤⽆线分组服务GPRS General power supply unite 通⽤功率电源单元GSA Gsm system area GSM系统区域GSM Global system for mobile communication 全球移动通信系统GSM PLMN Gsm public land mobile network 公⽤陆地移动⽹络GT Global title 全球标⽰HDLC High level data link control ⾼层数据链路控制HLC High layer compatibility ⾼层兼容性HO HANDOver 切换HOLD Call hold supplementary service 呼叫保持补充业务HOLMN Home PLMN 归属PLMNHPU Hand portable ⼿持单元HSN Hopping sequence number 跳频序列数字I Information frame 信息祯IA Incoming access 呼⼈接⼊IAM Initial address message 初始地址消息IC Interlock code 互琐码ICB Incoming call barred 限制呼⼊呼叫ICC Inte grated circuit card 集成电路卡IC Interlock code 优先互琐码ICM Incall modification 呼⼊呼叫更改ID Identification/identity/identifer 标⽰IDN Integrated digital network 综合数字⽹IE Signaling information element 信息单元IEI Information element identifier 信息单元表⽰IETS Interim European telecommunication standart 临时欧洲电信标准IMEI international mobile station equipment identity 国际移动台设备表⽰IMSI International mobile subscriber identity 国际移动⽤户标⽰IN Interrogting node 询问节点ISC International switch center 国际交换中⼼ISDN Integrated service digital network 综合业务数字⽹ISO International organization for standardzation 国际标准化组织ISUP Isdn user part (of signal system No.7) ISDN⽤户部分ITC Information transfer capability 信息传送容量IWF Interworking functions 互连功能IWMSC Interworking MSC 互连的MSCIWU Interworking Uinte 互连的单元Kc Ciphering key 密钥Ki Individual subscriber authentication ⽤户鉴权密钥L3 Layer 3 第三层LA Location area 位置区域LAC Location area code 位置区域码LAI Location area identity 位置区域标⽰LAN Local area network 本地⽹LAPB Link access protocol balanced 平衡的链路接⼊协议LAPDm Link access protocol on the channel 在Dm信道上的链路接⼊LCN Local communication network 本地通信⽹LE Local exchange 本地交换LLC Low layer compatibility 低层兼容性LMSI Local mobile station identity 本地移动台标⽰LNA Low number digled 低噪声放⼤器LND Last number dialed 上次拨叫号码LPLMN Local PLMN 本地PLMNLR Location register 位置积存器LTE Local terminal emulator 本地终端模拟器LU Local units 本地单元LV Length and value 长度和含义M Mandatory 必备的MA Mobile allocation 移动分配MACN Mobile allocation 移动分配信道号MAF Mobile allocation channel number 移动附加功能MAH Mobile access hunting supplementary service 移动搜寻补充功能MAI Mobile allocation index 移动分配索引MAIO Mobile allocation index offset 移动分配索引偏移MAP Mobile allocation part 移动应⽤部分(⽤于MCC Mobile country code 移动国家代码MCI Malicious call identification supplementary service 恶意呼叫识别补充业MD Mediation device 中介设备MDL Mobile management data link 管理数据链路ME Mobile equipment 维护实体MEF Maintenance entity functions 维护实体功能MF Multiframe 复祯MHS Message handling system 消息处理系统MIC Mobile interface controller 移动接⼝控制MLSE Maximum likelihood system 最⼤⾃然序列估计MM Man machine ⼈机Mobility management 移动性管理MME Mobility management entity 移动性管理实体MMI Man machine interface ⼈机接⼝MNC Mobile network code 移动⽹络代码MO Mobile originated call 移动主叫MoU Memorandum of understanding 谅解备忘录MPH Mobile management physical 管理物理MPTY Multiparty supplementary service 多⽅通话补充业务MRP Mouth reference point ⼝参考点MS Mobile station 移动台MSC Mobile service switch center 移动交换台MSCM Mobile station class mark 移动台类别标志MSCU Mobile station control unite 移动台控制单元MSISDN Mobile station ISDN 移动台号码MSRN Mobile station roaming number 移动台漫游号码MT Mobile terminated 移动被叫MT Mobile termination 移动终端MTBF Mean time between failure 平均⽆故障时间MTC Mobile terminate call 移动被叫MTM Mobile to mobile 移动台到移动台的呼MTP Mark up 消息传输部分MU Multi user mobile station 标记MUMS Multiuser mobile station 多⽤户移动台N/W Network ⽹络NB Normal brust 正常突发脉冲NBIN A parameter in the hopping sequence ⼀个跳频序列中的参NCC Network PLMN color code ⽹络代码NCELL Neighboring cell 当前⼩区的邻⼩区NDC National destination code 本国⽬的代码NDUB Network determined user busy 由⽹络确定⽤户忙NE Network element ⽹络单元NEF Network element function ⽹络单元功能NF Network function ⽹络功能NIC Network independent clocking 与⽹络⽆关的定时NM Network management ⽹络管理NMC Network management center ⽹络管理中⼼NMSI National mobile station identification number 本国移动的标⽰号NPI Number plan identifier 号码规划表⽰NSAP Network service access point ⽹络业务接⼊点NT No transparent ⽹络终端NTABB New type approval advisory 新类型批准部门NUA Network user access ⽹络⽤户接⼝NUI Network user identification ⽹络⽤户标识NUP National user part 本国⽤户标准O Optional 可选的OA Outgoing access 呼出接⼊O&M Outgoing & maintenance 操作和维护OACSU Off air call setup 不占⽤空中信道的呼OCB Outgoing calls barred within the CUG CUG中限制呼出呼叫OD Optional for operators to implement for their aim 运营商为实现不同的OLR Overall loudness rating 锋值⾳量⽐率OMC Operations and maintenance center 操作和维护中⼼OML Operations and maintenance link 操作和维护链路OMS-B Operations and maintenance system for the BBS 对BBS的操作和维护OS Operation system 操作系统OSI Open system interconnection 开放系统互连模型OSI RM OSI reference model OSI参考模式PABX Private automatic branch exchange 专⽤⾃动交换机PAD Packet assemble /disassembly 分组集结PCH Paging channel 寻呼信道PCM Pulse code modulation 脉冲编码调制PD Protocol discriminator 协议鉴别器PDN Public data network 公⽤数据⽹PH Packet handle 分组处理PHI Packet handle interface 分组处理接⼝PI Presentation indicator 显⽰指⽰PICS Protocol implementation conformance statement 协议实现⼀致性申明PIN Personal identification code 个⼈识别码PLXT Protocol implementation extra information for testing ⽤于测试的协议实现PLMN Public lands mobile network 公⽤陆地移动⽹络PP Performance management 性能管理POI Point of interconnection 和PSDN互连点PP Point to point 点到点PPCC Peripheral processor for CCSS 7 对CCCS7的外围处理PPLD Peripheral processor for LOAD 对LOAD的外围处理PREF CUG Preferential CUG 优先的CUGPS Location probability 位置可能性PSPDN Packet switched public data network 分组交换公⽤数据⽹PSTN Packet switched telephone network 公⽤电话交换⽹PUCT Price per unit currency table 每单元价格表PUK PIN unblock key PIN解锁密码PW Pass word 密码QA Q adapter Q 接⼝适配器QAF Q adapter functions Q Q 接⼝适配器功能QOS Quality of service 业务质量RA Random mode request information field 随机模式请求信息区RAB Random access brust 突发脉冲随机接⼊RACH Random access channel 随机接⼊信道RAND Random number 随机数RBER Residual bit error ratio 剩余误⽐特率RDI Restricted digital information 限制的数值信息REC Recommendation 建议REJ e Rejection 拒绝REL Release 释放REQ Request 请求RF Radio frequency 射频RFCI Radio frequency channel ⽆线频率信道RFCH Radio frequency channel ⽆线频率信道RFN Reduced TDMA frame number 缩减TDMA信道RFU Reserved for future use 为将来保留RLP Radio link protocol ⽆线链路协议RLR Receiver loudness rating 接受⾳量⽐率RMS Root mean square 均量值RNTABLE Table of 128 integer in the hopping sequence 跳频序列中的128个ROSE Remote operation service element 远程超做业务单元RR Radio resource ⽆线资源RSE Radio system entity ⽆线系统实体RSL Radio signaling link ⽆线信令链路RSZI Regional subscription zone identity 区域的预约区域标识RTE Remote terminal emulator 远端终端模拟器RX Receiver signal level 接受的信号强度RXAMOD Received antenna module 接受的⽆线摸快RXMUCO Receiver multi coupler 接受多路耦合器RXQUAL Received signal quality 接受的信号质量S/W Software 软件SABM Set asynchronous balanced mode 置异步平衡模式SACCH Slow associated control channel 慢速随路控制信道SACCHG/4 Slow associated control channel/sdcch/4 慢速随路控制信道/ SACCH/8 Slow associated control channel/sdcch/8慢速随路控制信道/ SACCH/T Slow associated control channel/traffic channel 慢速随路控制信道/ SACCH/TF Slow associated control channel/traffic channel full rate 慢速随路控制信道/ SAP Slow associated control channel/traffic channel half rate 业务接⼊点SAPI Service access point indicator 业务接⼊点指⽰SB Synchronization 同步突发脉冲SC Service center 接⼊中⼼Service code 接⼊代码SCCP Signaling connection control part 信令连接控制部分SCH Synchronization channel 同步信道SDCCH Standalone dedicated control channel 独⽴专⽤信道SDL Specification description 说明与描述语⾔SDT SDL development tool SDL开发⼯具SDU Service data unit 业务数据单元SE Support entity ⽀持实体SEF Support entity functions ⽀持实体功能SFH Slow frequency hopping 慢速跳频SI Screening indication 屏蔽SIM Subscriber identity 业务互作⽤SLR Send loudness rating 发送⾳量⽐率SLTM Signaling link test message 信令链路测试消息SMAP System management 系统管理应⽤程序SM Security management 安全SME Short message entity 短消息实体SMG Special mobile group 短消息组SMISE Special management information service element 专⽤管理信息业务SMS Short message service 短消息业务SMSCB Short message service cell broad cast 短消息业务⼩区⼴播SMSSC Short message service center 短消息业务中⼼SMS/PP Short message service/point to point 短消息业务/点到点SMT Short message terminal 短消息终端SN Subscriber number ⽤户号码SNR Serial number R 序列好SOA Suppress outgoing access 抑制呼出接⼊SP Service provider 业务提供商Signaling Point 信令点SPC Signaling point code 信令点代码Suppress Preferential CUG抑制优先的CUGSRES Signed RESponse 鉴权响应数SS Supplementary service system simulator 补充业务System Simulator 系统模拟器SSC Supplementary service control string 补充业务控制串SSN Subsystem NO 7 ⼦系统号码SS7/SS#7 Signaling system NO 7 七号信令STMR Side tone masking rating 侧⾳屏蔽⽐率STP Signaling transfer 信令传输点SVN Software version 软件版本好SWM Software management 软件管理T Timer 时钟TA Terminal Adaptor 终端适配器Time advance 时间提前量TAC Type approval Code 类型批准代码TAF Terminal adaptation Function 终端适配功能TBR Technical basis for regulation 规定的技术基础TC Transaction capabilities 处理能⼒TCAP Transaction capabilities application part 事物处理能⼒的应⽤TCH Traffic channel 业务信道TCH/F A full rate tch 全速业务信道TCH/F2.4 A full rate tch/2,4 k 全速业务信道(<=2. TCH/F4.8 A full rate tch /4.8k 全速业务信道(4.8k TCH/F9.6 A full ratetch/9.6k 全速业务信道(9.6k TCH/FS A full rate speech ch 全速语⾳信道TCH/HS A half rate tch 半速语⾳信道TCI Transeceiver control interface 收发信机控制接⼝TCTR Technical committee technical report 技术委员会技术报告TDMA Time division multiple access 时分多址TE Terminal equipment 终端设备TEI Terminal endpoint identifier 终端点标识TFA Transfer allowed 允许传送TFP Transfer allowed 禁⽌窜送TI Transaction identifier 事物处理标识TLV Type length and value 类型长度和含义TM Test management 测试管理TMN Telecommunication management network 电信管理⽹TMSI Temporary mobile subscriber identity 临时移动⽤户号码TN Timeslot number 时隙号TON Type of number 数字类型TRAU Trans coding and rate adaption unit 码型转换和速率适配TRX Transceiver 收发信机TS Time slot 时隙Tchnical Specification 技术标准TSC Training sequence code 训练序列代码TSDI Transceiver speech &data interface 收发信机语⾳和数据TTCN Tree and tabular combined notation 数表结合表⽰TUP Telephone user part 电话⽤户部分TV Type sand value 类型和含义UDI Unrestricted digital information ⽆限制的数字信息UDUB User determined user busy 有⽤户决定的⽤户忙UI Unmumbered information ⽆序信息UPCMI Uniform PCM interface 统⼀的PCM接⼝UPD Up to date 最新的USSD Unstructured supplementary service data 未组织的补充业务数UUS User to user signaling supplementary service ⽤户到⽤户的信令补V Value only 含义VAD Voice activity deteection 语⾳激活检测VAP Video tex access point 可视数据接⼊点VBS Voice broadcast service 语⾳⼴播业务VGCS Voice group call service 语⾳组呼叫业务VLR Visitor location register 接⼊位置寄存器VMSC Visited MSC 被访问的MSC VPLMN Visited PLMN 被接⼊的MSCVSC VideoTEX service center 可视数据业务中⼼VSWR Voltage standing wave ratio 电压驻波⽐VSD Send state variable 发送状态变量VTX The components dedicated to videotex service 专门⽤于可视数据的WARC World adminstrative radio conference 世界⽆线电⾏政⼤会WS Word ststion ⼯作站WPA Wrong password attempts 密码错误。

GSM专题小知识汇总

GSM专题小知识汇总

MAX retrains(最大重传次数):当MS发送完初始的信道请求消息后,MS将启动T3120并守候在全下行CCCH信道(准备接受应答消息)和BCCH信道上。

当T3120超时而且RACH 重发次数未超过“最大重传次数”时,MS将重复发送信道请求消息,其中包含一个新的随机参考,并启动T3120为一个新值。

当T3120超时,且达到“最大重发次数”时,MS启动T3126,此后等待一段时间并允许网络放弃。

在T3126超时后,仍未收到网络的应答时,则放弃请求尝试,并进行小区重选。

定向重试:定向重试指:在指配过程中,往往因为一些原因,如小区拥塞、没有无线资源可以分配,会发生指配失败的情况。

而在手机当前服务小区资源紧张的同时,它的临近小区可能有充足的资源可以利用。

为了提高呼叫接通率,GSM系统提出了定向重试的方案。

定向重试是指在手机指配过程中,在当前服务小区资源紧张的情况下,直接为手机分配临近小区的业务信道,借用切换流程,将手机切换到临近资源充足的小区,从而顺利完成指配流程的过程。

因此定向重试可以认为是一种特殊的切换。

定向重试的意义:定向重试在实际中用很强的实用性,它可以动态的调配小区间话务量,实现小区互助。

特别是处理一些紧急突发性事件,更能体现它的优越性。

例如某小区因为某种原因(如召开大型博览会)导致话务量突然上升,在现有小区规划不便的情况下,会导致呼损率急速上升。

而通过定向重试可以将一部分话务量引导到此小区的临近小区,从而减低小区的压力,大幅度降低呼损率。

测量报告有关知识:GSM系统:不通话时,位置更新,分tmsi时,可用到SDCCH 信道拨号时会用到SDCCH通话时仅有TCH和,SACCH,FACCH存在SACCH可伴随SDCCH和TCHFACCH伴随TCH,抢占TCH资源。

SACCH下行发送功率控制,TA(时间提前量)和邻小区列表上行发的测量报告(本小区的信号质量和强度,邻小区BCCH载波的强度等,和邻小区的bsic)位置更新:1、开机位置更新,2、跨区位置更新3、周期性位置更新更新TMSI:1、跨LAI,2、跨VLR,3、呼叫建立短消息发送:空闲时采用SDCCH信道来收发短信,忙时采用SACCH信道来收发短信。

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A3A3/8A5/1A5/2A5/XA8AB Access BurstAccess Class(C0 to C15)ACApplication ContextACC Automatic Congestion ControlACCH Associated Control ChannelACK ACKnowledgementAccumulated Call MeterACMAddress Complete MessageACU Antenna Combining UnitAdministration CenterADCAnalogue to Digital ConverterAND Abbreviated Dialing NumberADPCM Adaptive Differential Pulse Code ModulationAE Application EntilyAEC Acoustic echo controlAE Additional elementary functionsAGCH Access grant channelAi Actions indictorAoC Advice of chargeAoCC Advice of charge charging supplementary serviceAoCI Advice of charge information Supplementary serviceASE Application service elementASN.1Abstract syntax notation oneARFCN Absolute radio frequency channel numberARQ Automatic request for retransmissionATT(flag)AttachAU Access uniteAuC Authentication centerAUT( H )AuthenticationBA BCCH allocationBAIC Barring of all incoming calls supplementary service 限BAOC Barring of all outgoing calls supplementary serviceBCC Base transceiver station (BTC) color channelBCCH Broadcast control channelBCD Binary coded decimalBCF Base station control functionBCIE Bearer capability informationBER Bit error rateBFI Bad frame indicationBI all barring of incoming call supplementary serviceBICRoam Barring of incoming calls when roaming outside the room PLMN country supplement service在注BN Bit numberBO All barring of outgoing call supplementary serviceBOIC Barring of outgoing international calls supplementary serviceBOICexHC Barring of outgoing international calls except those directed to the home PLMN country supplementary service 除了直接呼BS Bearer serviceBSG Basic service (group)Basic service groupBSC Base station controllerBSIC Base transceiver station identity codeBSICNCELL BSIC of an adjacent cellBSS Base station systemBSSAP Base station system application partBSSMAP Base station system management application partBSSOMAP Base station system operation management application partBTS Base transceiver stationC ConditionalCA Cell allocationCAI Charge advice informationCB Cell broadcastCBC Cell broadcast centerCBCH Cell broadcast channelCBMI Cell broadcast message identifierCC Country codeCall controlCCBS Completion of calls to busy subscriber supplementary serviceCCCH Common control channelCCF Conditional call forwardingCCH Control channelCCITT The international telegraph and telephone consultative committeeCCM current call meterCCP Capability /configuration parameterCCPE Control channel protocol entityCct CircuitCDUR Chargeable DURationCED Call station identifierCEID Central equipment identifier registerCEND End of charge pointCEPT Conference of European post and telecommunication administrationCF Conversion facilityCFB All call forwarding serviceCall forwarding on mobile subscriber busy supplementary service CFNRc Call forwarding on mobile subscriber not reachable supplementary service CFNRy Call forwarding on no reply supplementary serviceCFU Call forwarding unconditional supplementary serviceCHP Charging pointCHV Card holding verification informationCI Cell identity CUG indexCIR Carrier interference ratioCKSN Ciphering key sequence numberCLI Calling line identityCLIP Calling line identification presentation supplementary service CLIR Calling line identification restriction supplementary service CM Connection managementCMD commandCMM Channel mode modifyCNG CalliNG toneCOLI Connected line identityCOLP Connected line identification presentation supplementary service COLR Connected line identification restriction supplementary service COM COmpleteCONNACK CONNect acknowledgement C/R Command/response field bitCRC Cyclic redundancy checkCRE Call Reestablishment procedureCSPDN Circuit switching public data networkCT Call transfer supplement serviceChannel testChannel typeCTR Common technical regulation CUG Close user group supplementary service CW Call waiting supplementary service DAC Digital to analogue converterD B Dummy burstDCCH Dedication control channel DCE Data circuit terminating equipment DCF Data communication function DCM Data conversion moduleDCS1800Digital cellular system at 1800MHz DET DetachDISC DisconnectDL Data link(layer)DLCI Data link connection identifierDLD Data link discriminatorDm Control channel (isdn )DMR Digital mobile radioDNIC Data network identifierDP Dial /dialed pulseDRX Discontinuous receptionDSE Data switch exchangeDSI Digital speech interpolationDSSI Digital subscriber signaling No.1DTAP Direct transfer application partDTE Data terminal equipmentDTMF Dual tone multi FrequencyDTX Discontinuous transmissionEA External alarmsEBSG Elementary basic service groupECM Error correction modeEc/No Ratio of energy per modulating bit to the noise spectral density ECT Explicit call transfer supplementary serviceEEL Electric echo lossEIR Equipment identity registerEL Echo lossEMC Electromagnetic compatibilityEMI Electromagnetic interferenceEmlpp Enhanced multilevel preecednce and preemption service EMMI Electrical man machine interfaceEPROM Erasable programmable read only memoryERP Ear reference pointERR errorETR ETSI technical reportETS European telecommunication standardETSI European telecommunication standard instituteFA Full allocation fax adaptorFAC Final assembly codeFACCH Fast associated control channelFACCH/F Fast associated control channel /full rateFACCH/H Fast associated control channel /half rate FB Frequency correction burstFCCH Frequency correction channelFCS Frame check sequenceFDM Frequency division multiplexFDN Fixed digital numberFEC Forwarding error correctionFER Frame erasure ratioFH Frequency hoppingFN Frame numberFR Full rateFTA Final type approvalFTAM File transfer ,access and manipulation FTN Forwarded and numberGCR Group call registerGMSC Gateway mobile service switching center GMSK Gaussian minimum shift keying modulation GPA Gsm plmn areaGPRS General packet radio serviceGPRS General power supply uniteGSA Gsm system areaGSM Global system for mobile communication GSM PLMN Gsm public land mobile network GT Global titleHDLC High level data link controlHLC High layer compatibilityHO HANDOverHOLD Call hold supplementary serviceHOLMN Home PLMNHPU Hand portableHSN Hopping sequence numberI Information frameIA Incoming accessIAM Initial address messageIC Interlock codeICB Incoming call barredICC Inte grated circuit cardIC Interlock codeICM Incall modificationID Identification/identity/identifer IDN Integrated digital networkIE Signaling information elementIEI Information element identifierIETS Interim European telecommunication standart IMEI international mobile station equipment identity IMSI International mobile subscriber identity IN Interrogting nodeISC International switch centerISDN Integrated service digital network ISO International organization for standardzation ISUP Isdn user part (of signal system No.7) ITC Information transfer capabilityIWF Interworking functionsIWMSC Interworking MSCIWU Interworking UinteKc Ciphering keyKi Individual subscriber authenticationL3Layer 3LA Location areaLAC Location area codeLAI Location area identityLAN Local area networkLAPB Link access protocol balancedLAPDm Link access protocol on the channelLCN Local communication networkLE Local exchangeLLC Low layer compatibilityLMSI Local mobile station identityLNA Low number digledLND Last number dialedLPLMN Local PLMNLR Location registerLTE Local terminal emulatorLU Local unitsLV Length and valueM MandatoryMA Mobile allocationMACN Mobile allocationMAF Mobile allocation channel numberMAH Mobile access hunting supplementary service MAI Mobile allocation indexMAIO Mobile allocation index offsetMAP Mobile allocation partMCC Mobile country codeMCI Malicious call identification supplementary service MD Mediation deviceMDL Mobile management data linkME Mobile equipmentMEF Maintenance entity functionsMF MultiframeMHS Message handling systemMIC Mobile interface controllerMLSE Maximum likelihood systemMan machineMMMobility managementMME Mobility management entityMMI Man machine interfaceMNC Mobile network codeMO Mobile originated callMoU Memorandum of understandingMPH Mobile management physicalMPTY Multiparty supplementary serviceMRP Mouth reference pointMS Mobile stationMSC Mobile service switch centerMSCM Mobile station class markMSCU Mobile station control unite MSISDN Mobile station ISDNMSRN Mobile station roaming numberMT Mobile terminatedMT Mobile terminationMTBF Mean time between failureMTC Mobile terminate callMTM Mobile to mobileMTP Mark upMU Multi user mobile stationMUMS Multiuser mobile stationN/W NetworkNB Normal brustNBIN A parameter in the hopping sequence NCC Network PLMN color codeNCELL Neighboring cellNDC National destination codeNDUB Network determined user busy NE Network elementNEF Network element functionNF Network functionNIC Network independent clockingNM Network managementNMC Network management centerNMSI National mobile station identification number NPI Number plan identifierNSAP Network service access pointNT No transparentNTABB New type approval advisoryNUA Network user accessNUI Network user identificationNUP National user partO OptionalOA Outgoing accessO&M Outgoing & maintenanceOACSU Off air call setupOCB Outgoing calls barred within the CUGOD Optional for operators to implement for their aim OLR Overall loudness ratingOMC Operations and maintenance centerOML Operations and maintenance linkOMS-B Operations and maintenance system for the BBS OS Operation systemOSI Open system interconnectionOSI RM OSI reference modelPABX Private automatic branch exchangePAD Packet assemble /disassemblyPCH Paging channelPCM Pulse code modulationPD Protocol discriminatorPDN Public data networkPH Packet handlePHI Packet handle interfacePI Presentation indicatorPICS Protocol implementation conformance statement PIN Personal identification codePLXT Protocol implementation extra information for testing PLMN Public lands mobile networkPP Performance managementPOI Point of interconnectionPP Point to pointPPCC Peripheral processor for CCSS 7PPLD Peripheral processor for LOADPREF CUG Preferential CUG PS Location probabilityPSPDN Packet switched public data networkPSTN Packet switched telephone networkPUCT Price per unit currency tablePUK PIN unblock keyPW Pass wordQA Q adapterQAF Q adapter functions QQOS Quality of serviceRA Random mode request information fieldRAB Random access brustRACH Random access channelRAND Random numberRBER Residual bit error ratioRDI Restricted digital informationREC RecommendationREJ e RejectionREL ReleaseREQ RequestRF Radio frequencyRFCI Radio frequency channelRFCH Radio frequency channelRFN Reduced TDMA frame numberRFU Reserved for future useRLP Radio link protocolRLR Receiver loudness ratingRMS Root mean squareRNTABLE Table of 128 integer in the hopping sequence ROSE Remote operation service elementRR Radio resourceRSE Radio system entityRSL Radio signaling linkRSZI Regional subscription zone identityRTE Remote terminal emulatorRX Receiver signal levelRXAMOD Received antenna moduleRXMUCO Receiver multi couplerRXQUAL Received signal qualityS/W SoftwareSABM Set asynchronous balanced modeSACCH Slow associated control channelSACCHG/4Slow associated control channel/sdcch/4SACCH/8Slow associated control channel/sdcch/8SACCH/T Slow associated control channel/traffic channel SACCH/TF Slow associated control channel/traffic channel full rate SAP Slow associated control channel/traffic channel half rate SAPI Service access point indicatorSB SynchronizationService center SCService codeSCCP Signaling connection control partSCH Synchronization channelSDCCH Standalone dedicated control channelSDL Specification descriptionSDT SDL development toolSDU Service data unitSE Support entitySEF Support entity functionsSFH Slow frequency hoppingSI Screening indicationSIM Subscriber identitySLR Send loudness ratingSLTM Signaling link test messageSMAP System managementSM Security managementSME Short message entitySMG Special mobile groupSMISE Special management information service elementSMS Short message serviceSMSCB Short message service cell broad castSMSSC Short message service centerSMS/PP Short message service/point to pointSMT Short message terminalSN Subscriber numberSNR Serial number RSOA Suppress outgoing accessService providerSPSignaling PointSignaling point codeSPCSuppress Preferential CUG SRES Signed RESponseSupplementary service system simulatorSSSystem SimulatorSSC Supplementary service control stringSSN Subsystem NO 7SS7/SS#7Signaling system NO 7STMR Side tone masking ratingSTP Signaling transferSVN Software versionSWM Software managementT TimerTerminal AdaptorTATime advanceTAC Type approval CodeTAF Terminal adaptation FunctionTBR Technical basis for regulationTC Transaction capabilitiesTCAP Transaction capabilities application partTCH Traffic channelTCH/F A full rate tchTCH/F2.4 A full rate tch/2,4 kTCH/F4.8 A full rate tch /4.8kTCH/F9.6 A full rate tch/9.6kTCH/FS A full rate speech chTCH/HS A half rate tchTCI Transeceiver control interfaceTCTR Technical committee technical report TDMA Time division multiple accessTE Terminal equipmentTEI Terminal endpoint identifierTFA Transfer allowedTFP Transfer allowedTI Transaction identifierTLV Type length and valueTM Test managementTMN Telecommunication management network TMSI Temporary mobile subscriber identity TN Timeslot numberTON Type of numberTRAU Trans coding and rate adaption unitTRX TransceiverTime slot TSTchnical SpecificationTSC Training sequence codeTSDI Transceiver speech &data interface TTCN Tree and tabular combined notationTUP Telephone user partTV Type sand valueUDI Unrestricted digital informationUDUB User determined user busyUI Unmumbered informationUPCMI Uniform PCM interfaceUPD Up to dateUSSD Unstructured supplementary service data UUS User to user signaling supplementary service V Value onlyVAD Voice activity deteectionVAP Video tex access pointVBS Voice broadcast serviceVGCS Voice group call serviceVLR Visitor location registerVMSC Visited MSCVPLMN Visited PLMNVSC VideoTEX service centerVSWR Voltage standing wave ratioVSD Send state variableVTX The components dedicated to videotex serviceWARC World adminstrative radio conference WS Word ststionWPA Wrong password attempts。

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