【文章內(nèi)容簡(jiǎn)介】 　JD Joint Detection 聯(lián)合檢測(cè)　　JTAG Joint Test Action Group 聯(lián)合測(cè)試行動(dòng)小組　　K 　　kbps kilobits per second 千比特/秒　 　L 　　L1 Layer 1 (physical layer) 第一層(物理層)　　L2 Layer 2 (data link layer) 第二層(數(shù)據(jù)鏈路層)　　L3 Layer 3 (network layer) 第三層(網(wǎng)絡(luò)層)　　LAC Link Access Control 鏈路接入控制　　LAI Location Area Identity 位置區(qū)域識(shí)別　　LAN Local Area Network 局域網(wǎng)　　LCD Liquid Crystal Display 液晶顯示器　　LCS Location Services 位置業(yè)務(wù)　　LDAP Lightweight Directory Access Protocol 輕量級(jí)目錄訪問協(xié)議。LDAP 是一種輕量的目錄存取協(xié)議，提供客戶從各個(gè)角落連接到目錄服務(wù)器中。　　LEA Law Enforcement Agency 執(zhí)法代理　　LED Light Emitting Diode 發(fā)光二極管　　LI Lawful Intercept 合法監(jiān)聽　　LIAN Lawful Intercept Administration Node 合法監(jiān)聽管理節(jié)點(diǎn)　　LLC Logic Link Control 邏輯鏈路控制　　LMS Local OMC Subsystem 本地OMC子系統(tǒng)　　LMT Local Maintenance Terminal 本地維護(hù)終端　　LPU Line interface processing unit 線路接口處理單元　　M 　　M2UA SS7 MTP2User Adaptation Layer SS7 MTP2用戶適配層　　M3UA SS7 MTP3User Adaptation Layer SS7 MTP3用戶適配層　　MA Multiple Access 多址接入　　MAC Media Access Control 媒體接入控制　　MAHO Mobile Assisted Handover 移動(dòng)臺(tái)輔助切換　　MAP Mobile Application Part 移動(dòng)應(yīng)用部分　　MBS Maximum Burst Size 最大突發(fā)尺寸　　Mcps Mega Chip Per Second 兆切普/秒　　MCR Minimum Cell Rate 最新信元速率　　MCDR Mobility ManagementCDR SGSN產(chǎn)生的有關(guān)移動(dòng)性管理的計(jì)費(fèi)數(shù)據(jù)記錄　　MGC Media Gateway Controller 媒體網(wǎng)關(guān)控制器　　MGCP Media Gateway Control Protocol 媒體網(wǎng)關(guān)控制協(xié)議　　MGW Media GateWay 媒體網(wǎng)關(guān)　　MIP Mobile IP 移動(dòng)IP　　MM Mobility Management 移動(dòng)性管理　　MML Man Machine Language 人機(jī)語言　　MNC Mobile Network Code 移動(dòng)網(wǎng)絡(luò)碼　　MO MagnetoOptical 磁光盤　　MO Mobile Originated 移動(dòng)臺(tái)發(fā)起的　　MOHO Mobile Originated Handover 移動(dòng)臺(tái)發(fā)起的切換　　MPLS MultiProtocol Label Switching 多協(xié)議標(biāo)簽交換　　MPTY Multi Party Service 多方通話補(bǔ)充業(yè)務(wù)　　MPU Main Processing Unit 主控單元　　MRS Media Resource Server 媒體資源服務(wù)器　　MS Mobile Station 移動(dòng)臺(tái)(手機(jī))　　MSC Mobile services Switching Center, Mobile Switching Center 移動(dòng)交換中心　　MSC Server Mobile Switch Center Server 移動(dòng)交換中心服務(wù)器　　MSF Multiservice Switching Forum 多業(yè)務(wù)交換論壇　　MSISDN Mobile Station International ISDN Number 移動(dòng)臺(tái)國(guó)際ISDN號(hào)碼　　MSRN Mobile Station Roaming Number 移動(dòng)用戶漫游號(hào)碼　　MT Mobile Terminal 移動(dòng)終端　　MT Mobile Terminated 移動(dòng)臺(tái)終止的　　MTBF Mean Time Between Failures 平均故障間隔時(shí)間　　MTP Message Transfer Part 消息傳輸部分　　MTP3B Message transfer part (broadband) 消息傳輸部分(寬帶)　　MTTR Mean Time to Repair 平均故障修復(fù)時(shí)間　　MUI Mobile User Identifier 移動(dòng)用戶識(shí)別　　MVPN Mobile Virtual Private Network 移動(dòng)虛擬專用網(wǎng)　　N 　　NAS Non Access Stratum 非接入層　　NAT Net Address Translation 網(wǎng)絡(luò)地址轉(zhuǎn)換　　NBAP Node B Application Protocol 節(jié)點(diǎn)B應(yīng)用協(xié)議　　NE Network Element 網(wǎng)元　　NFS Network File System 網(wǎng)絡(luò)文件系統(tǒng)　　NI Network Interface 網(wǎng)絡(luò)接口　　NLP NoLinear Processor 非線性處理　　NM Network Management 網(wǎng)絡(luò)管理　　NMC Network Management Center 網(wǎng)管中心　　NMS Network Management System 網(wǎng)管系統(tǒng)　　NNI Network Node Interface (NetworktoNetwork) 網(wǎng)絡(luò)節(jié)點(diǎn)接口　　NP Network Processor 網(wǎng)絡(luò)處理器　　NPC Network Parameter Control 網(wǎng)絡(luò)參數(shù)控制　　NRT NonReal Time 非實(shí)時(shí)　　NS Network Sublayer 網(wǎng)絡(luò)子層　　NSAP Network Service Access Point 網(wǎng)絡(luò)業(yè)務(wù)接入點(diǎn)　　NSAPI Network Service Access Point Identifier 網(wǎng)絡(luò)業(yè)務(wù)接入點(diǎn)標(biāo)識(shí)　　Nt Notification (SAP) 通知(服務(wù)接入點(diǎn))　　NTP Network Time Protocol 網(wǎng)絡(luò)時(shí)間協(xié)議　　NW Network 網(wǎng)絡(luò)　　O 　　O1GAB 1Port Gigabit Ethernet Interface Unit ( Singlemode, medium distance) 單模10kmSC接口1路1000M以太網(wǎng)光接口板　　ODB Operator Determined Barring 運(yùn)營(yíng)者決定的閉鎖　　OCCCH ODMA Common Control Channel ODMA公共控制信道　　ODCCH ODMA Dedicated Control Channel ODMA專用控制信道　　ODCH ODMA Dedicated Channel ODMA專用信道　　ODCH ODMA Dedicated Transport Channel ODMA專用傳輸信道　　ODMA Opportunity Driven Multiple Access 機(jī)會(huì)驅(qū)動(dòng)多址接入　　ODTCH ODMA Dedicated Traffic Channel ODMA專用業(yè)務(wù)信道　　OEM Original Equipment Manufacturer 原設(shè)備制造商　　Oamp。M, OM Operations amp。 Maintenance 操作與維護(hù)OMC Operations amp。 Maintenance Center 操作與維護(hù)中心OCNS Orthogonal Channel Noise Simulator 正交信道噪聲模擬器　　OPC Originating Point Code 源信令點(diǎn)編碼　　ORACH ODMA Random Access Channel ODMA隨機(jī)接入信道　　OSI Open System Interconnection 開放系統(tǒng)互連　　OSPF Open Shortest Path First 開放最短路徑優(yōu)先路由協(xié)議　　OVSF Orthogonal Variable Spreading Factor (codes) 正交可變擴(kuò)頻因子(碼)　　P 　　P4CAB 4port STM1 PoS Optical Interface Unit ( Singlemode, medium distance) 單模15KmMTRJ接口4路OC3c/STM1c POS光接口板　　PBX Private Branch Exchange 小交換機(jī)　　PC Personal Computer 個(gè)人計(jì)算機(jī)　　PC Power Control 功率控制　　PCCC Parallel Concatenated Convolutional Code 并行級(jí)聯(lián)卷積碼　　PCCPCH Primary Common Control Physical Channel 主公共控制物理信道　　PCCH Paging Control Channel 尋呼控制信道　　PCH Paging Channel 尋呼信道　　PCI Protocol Control Information 協(xié)議控制信息　　PCI Peripheral Component Interconnect 外部部件互連　　PCM Pulse Code Modulate 脈沖編碼調(diào)制　　PCPCH Physical Common Packet Channel 物理公共包信道　　PCR Peak Cell Rate 信元峰值速率　　PCS Personal Communications System 個(gè)人通信系統(tǒng)　　PCU Packet Control Unit 分組控制單元　　PDCP Packet Data Convergence Protocol 包數(shù)據(jù)集中協(xié)議　　PDH Plesiochronous Digital hierarchy 準(zhǔn)同步數(shù)字序列　　PDN Packet Data Network 分組數(shù)據(jù)網(wǎng)　　PDP Packet Data Protocol 分組數(shù)據(jù)協(xié)議　　PDSCH Physical Dedicated Shared Channel 物理專用共享信道　　PDSCH Physical Downlink Shared Channel 物理下行共享信道　　PDU Protocol Data Unit 協(xié)議數(shù)據(jù)單元　　PhCH Physical Channel 物理信道　　P