BER Performance of Code-Spread CDMA Systems with Delay Estimation

名词缩写解释3G-MSC3G-SGSN 3 rd Gen eration Mobile Switchi ng Centrerd3 Gen eration Servi ng GPRS Support Node GPRS的节点第三代移动交换中心第三代服务ATM Asyn chr on ous Tran sfer Mode 异步传递模式AAL2 ATM Adaptati on Layer type 2 ATM适配层类型2 AS Access Stratum 接入层BSSMAP Base Stati on Subsystem Man ageme nt Applicati on Part 理应用部分基站子系统管CC Conn ecti on Con firm 连接确认CN Core Network 核心网CS Circuit Switched 电路交换PS Packet Switched 分组交换PVC Perma nent Virtual Circuit 永久虚电路RLP Radio Link Protocol 无线链路协议RNC Radio Network Con troller 无线网络控制器RNL Radio Network Layer 无线网络层RFC RAB sub Flow Combi natio n RAB子流组合RFCI RFC In dicator RAB子流组合指SVC 示Switched Virtual Circuit交换虚电路SDU Service Data Unit 服务数据单元SMpSDU Support Mode for predefi ned SDU size 预定义SDU大小的支持模式SAP Service Access Point 业务接入点SRNS Servi ng RNS系统服务无线网络子TrM Tran spare nt Mode 透明模式TNL Tran sport Network Layer 传输网络层UE User Equipme nt 用户设备本文档用到下列缩略语ASC 接入业务类别 BCCH 广播控制信道 C- 控制-CCCH 公共控制信道 DCH 专用信道 DL 下行链路DSCH 下行链路共享信道 DTCH 专用业务信道FAUSCH 快速上行链路信令信道 L1 Layer 1 (物理层) L2 Layer 2 (数据链路层) L3 Layer 3 （网络层） PCCH 寻呼控制信道 PHY 物理层 PhyCH 物理信道RNC 无线网络控制器 RNS 无线网络子系统 RNTI 无线网络临时识别 RRC 无线资源控制 SAP 业务接入点 SDU 业务数据单元 SHCCH 共享信道控制信道 SRNC 服务RNC SRNS 服务RNSTFI 传输格式指示 U- 用户- UE 用户设备 UL 上行链路UMTS 通用移动通信系统 USCH 上行链路共享信道 UTRAUMTS 陆地无线接入UTRANUMTS 陆地无线接入网UPUTRANVC Virtual Circuit C-SAP CBC CBS CTCHCTCH-BS kbps L1 L2 L3 NSAPI UE User Pla neUMTS Terrestrial Radio Access Network 接入网控制业务接入点 小区广播中心 小区广播业务公共业务信道 公共业务信道块集 千比特/秒Layer 1 (physical layer) Layer 2 (data link layer) Layer 3 (n etwork layer) 网络层业务接入点 用户设备用户平面UMTS 陆地无线本文档中应用以下缩略语:AS 接入层C-SAP 控制服务接入点IETF In ter net工程任务组L2 层2 （数据链路层）L3 层3 （网络层）PID 分组标示RFC 请求注解RRC 无线资源控制RTP 实时协议SDU服务数据单元TCP 传输控制协议UE 用户设备UMTS 通用移动通信系统UTRA UMTS陆地无线接入UTRAN UMTS陆地无线接入网缩略语ARQ 自动重发请求BCCH 广播控制信道C- 控制-CCCH 公共控制信道CCH 控制信道CN 核心网DC 专用控制（SAP）DCH 专用信道DL 下行DSCH 下行共享信道DTCH 专用业务信道FCS 帧校验序列GC 通用控制（SAP）HO 切换ITU 国际电信联盟kbps 每秒千比特L1 层1 （物理层）L2 层2 （数据链路层）L3 层3 （网络层）MS 移动站Nt 通知（业务接入点）PCCH 寻呼控制信道PU 净荷PHY 物理层PhyCH 物理信道RNTI 无线网络临时标识RRC 无线资源控制SAP 业务接入点SDU 业务数据单元SHCCH 共享信道控制信道TDD 时分复用TFI 传输格式指示U-UEUL UMTS UTRA UTRAN 用户-用户设备上行链路全球移动通信系统UMTS陆地无线接入UMTS陆地无线接入网GPRS Gen eral Packet Radio ServiceAA ATM BG BSSGP CCU CGI DNS GGSN GSN ICMP IETFIPv4IPv6 L3MMLL-PDULLC MDFG MNRF MSP MTP2MTP3 NSAPI NSS PCU PDCH PDN PDP PTM PTP PVC RAIRRM SGSN SM SM-SC SMS-GMSC SMS-IWMSC SN-PDU SNDC SNDCP TCAP TCP TIDTLLI Anonym ous AccessAsyn chr on ous Tran sfer ModeBorder GatewayBase Stati on System GPRS ProtocolCha nnel Codec UnitCell Global Iden tityDomai n Name SystemGateway GPRS Support NodeGPRS Support NodeIn ter net Con trol Message ProtocolIn ter net Engin eeri ng Task ForceIn ter net Protocol vers ion 4In ter net Protocol vers ion 6Layer 3 Mobility Man ageme ntLLC PDULogical Link Con trolMobile Detached Flag for GPRSMobile statio n Not Reachable FlagMultiple Subscriber ProfileMessage Tran sfer Part layer 2Message Tra nsfer Part layer 3Network layer Service Access Point Ide ntifier Network SubSystemPacket Co ntrol UnitPacket Data CHa nn elPacket Data NetworkPacket Data Protocol, e.g., IP or X.25Poi nt To Multipoi ntPoint To PointPerma nent Virtual CircuitRoute ing Area Ide ntityRadio Resource Man ageme ntServi ng GPRS Support NodeShort MessageShort Message service Service Cen treShort Message Service Gateway MSCShort Message Service In terworki ng MSC SNDCP PDUSubNetwork Depe ndent Con verge nee SubNetwork Depe ndent Con verge nee Protocol Tran sacti on Capabilities Applicati on Part Tran smissi on Con trol ProtocolTunnel Ide ntifierTemporary Logical Link Ide ntityTRAUTran scoder and Rate Adaptor Un缩略BCC:BaseStatio nColourCode.基站色码。

1981Agilent E4406AVector Signal AnalyzerAccuracyS p e e d2Fast and accurate measurements To stay competitive, wireless equipment manufacturers need flexible test equipment capable of testing different formats with little change in set-up. The Agilent E4406A vector signal analyzer (VSA) is the perfect fit, offering the best combination of speed and accuracy for making one-button,standards-based measurements.2.5G and 3G formatsFor engineers developing next-generation wireless components and systems, the E4406A provides W-CDMA, cdma2000,1xEV-DO and EDGE/GSM formats. Using one-button measurements, engineers can quickly verify conformance to these new formats. As the standards have evolved, we have continued to enhance existing measurement personalities, and add new ones. The modular architecture of the E4406A makes it simple for you to upgrade and be ready for the latest standards.You develop the wireless future…Easy to useMulti-format3…we provide the signal analysis.An investment for your future The number of wireless technologies deployed around the world is growing and the demand for any particular format can change quickly. The E4406A offers format and frequency flexibility.Comprehensive signal analysis Speeding up production means being ready to manufacture anything and lose no time doing it. The E4406A easily adapts to virtually any popular format:•W-CDMA •cdma2000•1xEV-DO •cdmaOne •EDGE •GSM •NADC •PDC •iDEN •Spectrum •Waveform“We have decreased the (transmitter power calibration)test time by 25%.”–T est Systems Designer4Built for speed…Fast standards-based measurements As a wireless system or componentmanufacturer, you are under pressure to increase throughput while minimizing capital investments. Long test times can severely limit your manufacturing throughput, so we designed the E4406A.Since its introduction, progressive enhancements to the E4406A ensure its performance keeps pace with the ever-increasing need for speed.Today's E4406A is faster than ever. For example, the W-CDMA adjacent channel power ratio (ACPR) measurement is now nearly eight times faster than it used to be.Output radio frequency spectrum (ORFS) is two times faster, W-CDMA code domain power (CDP) is five times faster, and other measurements have improved as well.The E4406A transmitter power calibration uses time record data and built-in algorithms to provide complete transmitter level calibration with incredible speed – with all the accuracy you expect from the affordably-priced E4406A.In addition to high-speed throughput and accuracy in the manufacturing environment,the E4406A is designed to allow research and development engineers to quickly obtain results with minimal keystrokes.The E4406A delivers a logical user interface and a wealth of quick “one button” measurments, enabling designers to quickly try multiple test without getting bogged down in crypitic menus. The E4406A interface provides the edge needed to expediently evaluate new designs and successfully meet the demands of today's competitive environment.Base station transceiver suite of testsTypical spectrum analyzerNow even faster…without giving up accuracy.Fast spectrum measurementsThe E4406A features pre-configured, one-button measurements for many cellular standards and can also be used for narrowband spectrum measurements. Manufacturers can expect to make inter-modulation distortion and other amplitude measurements up to three times faster using the E4406A. AccuracyYou don’t need to reduce measurementspeed to get accurate results. Superiorabsolute level accuracy of ±0.6 dB(±0.4 dB typical) provides unmatchedperformance and minimizes test uncertainty.Combined with a linearity of ±0.25 dBover a 76 dB range, the E4406A is astate-of-the-art measurement tool.Absolute level accuracyNarrow span spectrum measurement over GPIB E4406A VSA spectrum analyzer25 updates/second Typicalspectrumanalyzer56The E4406A VSA…Focused applications including EDGE, GSM,W-CDMA, cdma2000, 1xEV-DO, cdmaOne,and NADC as well as narrow-span spectrum and waveform analysisBaseband measurements with balanced/unbalanced multiple impedance inputsLarge,high-resolution, color display makes viewing multiple traces easyZoomfeature allows users to display selected measurement windowsAutomatic alignment ensures accurate measurement resultsOne-button,standards-based measurements7…comprehensive signal analysis.High-speed LAN, parallel, and GPIB ports provide speed and flexibility whenIntuitive key strokesBuilt-in floppy disk drive provides PC compatibility and data archivingManufacturing8Standards complianceIn manufacturing, you need straightforward pass/fail verification of critical specifications.With built-in test limits you don ’t have to keep track of every standard. The E4406A performs tests to the requirements of current industry standards with free, easy-to-install, firmware updates.Speed and throughputIn the world of high-speed manufacturing every millisecond counts. Identify your throughput restrictions and if measurement speed is creating a bottleneck, consider the significant speed advantage of the E4406A.Transmitter and receiver testingIn combination with the Agilent E4438C ESG vector signal generator, the E4406A offers base station receiver and transmitter testing for major 2G, 2.5G, and 3G wireless formats.The E4406A combined with an E4438C is a test solution that provides the required flexibility, without compromising accuracy, for maximum throughput in base station production with the ability to migrate to new formats.Designed for manufacturing…Development9Verify next-generation designs For R&D engineers developing next-generation wireless components and systems, the E4406A is a low-cost tool that quickly verifies conformance. Your investment is secure because the E4406A has a modular architecture – making it easy to upgrade to the latest standards.Characterize using leading test methodsDigital modulation presents new challenges to amplifier manufacturers.Designers need effective methods to quickly characterize digital signals. The E4406A ’s complementary cumulative-distribution function (CCDF) is useful for determining a signal ’s power statistics,revealing the power peaks relative to the average power for assessing linearity requirements.Flexible power measurements Multicarrier power amplifier (MCPA)designers are faced with new measurement challenges. Designers must characterize intermodulation distortion at many frequency offsets and evaluate the effects of different modulation formats over a wide dynamic range. The E4406A features a fully-configurable ACP measurement that can test up to five frequency offsets and be optimized for dynamic range or speed.…and product development.10GSM with EDGE (Option 202)The EDGE measurement personality performs the latest standards-based measurements, including:•Error vector magnitude (EVM)•Multi-slot power versus time (PvT)•ORFS •IQ offset•Channel plans for 400, 800, 900, 1800, 1900 MHz•GSM measurements from Option BAH The EVM measurement features a unique algorithm to simultaneously display the EVM numerical results and the EDGE constellation diagram using the industry-specified measurement filter.GSM (Option BAH)The GSM measurement personality lets you quickly perform measurements to the latest ETSI standards:•Mean transmitter carrier power •Multi-slot PvT •ORFS•Phase and frequency error (PFER)•IQ offset•Transmitter band spurious•Channel plans for 400, 700, 800, 900, 1800, 1900 MHzThe personality features easy channel and timeslot selections, configurable PvT masks,and a typical ORFS dynamic range of 90 dB.NADC and PDC (Option BAE)Both the North American Digital Cellular (NADC) and Personal Digital Cellular (PDC)measurement personalities are included in this option. The NADC measurements are structured according to the IS-136 TDMA standard. Measurements included in this option are:•ACP •EVM•Occupied bandwidth (for PDC)The personalities feature base station and mobile radio mode set-ups, as well as sync word search capability.iDEN (Option HN1)The iDEN measurement personality performs measurements to the Motorola iDEN specialized mobile radio format. •Occupied bandwidth (OBW)•ACPR•Transmitter bit error rate (BER)TDMA measurement personalities…11W-CDMA (Option BAF)The complexity of W-CDMA demands the flexibility and depth of demodulation capability provided by this personality.Perform the following measurements on the HPSK uplink or downlink QPSK signals:•Code domain •QPSK EVM•Modulation accuracy (composite rho and EVM)•Channel power•Adjacent channel power leakage ratio (ACLR)•Power control •PvT•Intermodulation distortion •Multicarrier power•Spectrum emission mask •OBW •CCDFThis personality has the ability toautomatically determine active channels,to synchronize with any W-CDMA channel,to display code domain power in a multi-rate view, and to demodulate down to the symbol level. Variable capture intervals and pre-defined test models enable the user to perform fast, accurate measurements for manufacturing or in-depth analysis for R&D.cdma2000 (Option B78)The cdma2000 measurement personality offers the logical upgrade path from IS-95 to IS-2000 testing. Measurements support the forward and reverse links.•Code domain •QPSK EVM•Modulation accuracy (composite rho and EVM)•Channel power •ACPR•Intermodulation distortion •Spectrum emission mask •OBW •CCDFAdvanced code domain analysis algorithms display Walch codes for either Hadamard or OVSF coding schemes in a multi-rate view. Other capability includes code domain power error, symbol EVM,symbol power versus time, active channel identification, variable PN offset, quasi-orthogonal functions and demodulated symbol bit displays after de-spreading.… and CDMA measurement personalities.12Expanding measurement potential…cdmaOne (Option BAC)Built on Agilent ’s pioneering efforts in CDMA measurement techniques,this personality provides quick and easy measurement set-ups for the TIA/EIA-95, J-STD-008,IS-97D, and IS-98D band classes:•Modulation accuracy (rho)•Code domain •Channel power •ACPR•Close-in spuriousAlong with the world ’s fastest ACPR measurements, this personality features PN (pseudo-noise sequence) search, time offset, and carrier feed-through analysis.1xEV-DO (Option 204)With digital demodulation analysis, the 1xEV-DO measurement personality provides the most comprehensive, easy-to-use,1xEV-DO measurement solution available in an analyzer. This personality, which performs measurements for both forward link and reverse link signals, provides key transmitter measurements for analyzing systems based on the 3GPP2 and TIA/EIA/IS-856 standards.Forward link•Channel power•Power versus time mask •Spurious emissions and ACP •Intermodulation distortion •OBW•Code domain•Modulation accuracy (composite rho)•QPSK EVM•Power statistics (CCDF)Reverse link •Code domain•Modulation accuracy (composite rho)For forward link, the PvT mask and spurious emissions/ACP measurements support both the idle slot (burst signal) and active slot (full power signal). With the auto-burst search function, you can see the standard-based time mask for the 1xEV-DO idle slot in PvT. Code domain, modulation accuracy (composite rho), and QPSK EVM can also measure for each channel ’s Pilot, MAC, and Data in QPSK/8PSK/16QAM. Designed with flexibility in mind, this personality supports the unique 1xEV-DO forward link signals ’feature of time divisions multiplex (TDM). For reverse link, code domain, and modulation accuracy provide powerful modulation analysis functions for transmitter tests.13IQ inputs (Option B7C)Capitalize on the E4406A ’s demodulation capabilities by extending the measurement range to baseband. The baseband IQ input option enables engineers to measure the complete signal path of a receiver or transmitter and directly compare signals both before and after frequency conversion and IQ (de)modulation.Ideally suited for R&D engineers and manufacturing environments, this option allows measurement of baseband I and Q signals in either balanced or unbalanced systems. Input configurations include 50-ohm unbalanced, 600-ohm balanced, and 1-Mohm balanced or unbalanced –enabling a variety of systems to be directly tested without cumbersome and error-inducing conversion networks.Applicable in-band 3GPP W-CDMA,cdma2000, EDGE/GSM, and Basic mode measurements are supported via RF and IQ inputs, enabling engineers to track down signal degradation both before and after RF/IF conversion.Additional features include auto calibration of input signals, variable dc offsets and a dc to 5-MHz input frequency range (10 MHz in I + jQ mode)....tailored to user requirements.14E4406A VSA/89601Asoftware combinationThe standards-based, one-button test capabilities of the E4406A can be expanded with the flexible digital demodulation and analysis capabilities of the Agilent 89601A PC software. This teaming provides fast and accurate data acquisition with powerful,flexible modulation analysis tools for, both common and evolving communications standards.The 89601A vector signal analysis software is the heart of the Agilent 89600 series of vector signal analyzers. This software provides flexible tools for demodulating and analyzing even the most advanced digital modulations, whether or not they are contained in an established standard. Features include variable block size signal acquisition with user-selectable pulse search and synch words, and a user-con-trollable adaptive equalizer. Filter types include cosine (raised and square-root raised), Gaussian, and low-pass – all with configurable alpha/BT. Supported modula-tion formats for both continuous and burst carriers include FSK (2, 4, 8, and 16 level),BPSK, QPSK, OQPSK, DQPSK, p/4DQPSK,8PSK, QAM (16 to 256 level), VSB (8 and 16 level), EDGE, and MSK.The software also provides signal capture and analysis features, such as the capability to download signal capture files for playback through signal generators,and display high-speed spectrograms.The 89601A software runs on a PC connected to the E4406A, via LAN or GPIB,and provides hardware control and results displays along with modulation analysis.Coupling speed and power…15/find/vsa…with Agilent’s tradition of excellence.Service and supportThe speed and accuracy of the E4406A VSA is only a small part of what you get from Agilent. We strive to provide complete solutions that go beyond our customers ’expectations. Only Agilent offers the depth and breadth of enhancements, software, services, connectivity, accessibility, and support to help you reach your measurement objectives. For more information on the E4406A VSA, including product and application literature, visit our Web site at /find/vsaPre-sales service• rentals, leasing, and financing • application engineering services Post-sales service• standard 3-year global warranty • Worldwide Call Center and Service Center support network • one-year calibration intervals • firmware upgrades downloadable from the Web PC connectivity • 10 baseT LAN port • floppy disk drive • GPIB interface• VXI Plug and Play driversPeripheral and product interfaces • parallel printer port • printer support • VGA monitor output• Agilent E4438C ESG vector signal generator•Agilent 89601A vector signal analysis softwareTraining and access to information • on-site user training • factory service training• Web-based support of frequently asked questions• manuals on CD-ROM and on the Web Software• programming examples on CD-ROM • SCPI (Standard Commands for Programmable Instruments)• PC-based performance verification and adjustment softwareOrdering Array informationE4406A vector signal analyzerModel DescriptionE4406A7 MHz to 4 GHzOption DescriptionDigital Demodulation MeasurementsE4406A-202EDGE with GSM measurementpersonalityE4406A-2041xEV-DO measurementpersonalityE4406A-B78cdma2000 measurementpersonalityE4406A-BAC cdmaOne measurementpersonalityE4406A-BAE NADC, PDC measurementpersonalityE4406A-BAF W-CDMA measurementpersonalityE4406A-BAH GSM measurement personality E4406A-HN1IDEN measurementpersonalityInputs and outputsE4406A-300321.4 MHz IF outputBBIQE4406A-B7C I/Q inputsCalibration documentationE4406A-UK6Commercial calibrationcertificate with test data AccessoriesE4406A-1CM Rack mount kitE4406A-1CN Handle kitE4406A-1CP Rack mount and handle kitE4406A-1CR Rack slide kit* Includes English manual set.。

一种利用线性调频信号的新型扩频调制技术吴进;孔辉【摘要】根据上扫频和下扫频线性调频(LFM)信号的特性,针对传统的超宽带无线通信系统中线性调频扩频技术存在的调制效率低、误码率性能低、实现复杂高等问题,结合线性调频(Chirp)扩频以及循环移位编码(CCSK)扩频,提出了一种基于线性调频信号的循环移位线性调频扩频技术(CS-CSS).首先,将输入数据映射在循环移位因子(CSF)上;然后,根据CSF数值对基带所产生的Chirp信号进行循环移位达到调制的目的;最后,在解调端经过加窗处理、快速傅里叶变换(FFT)得到与发射端对应的CSF,从而得到发送的数据.误符号率的仿真结果与理论推导公式相吻合,从调制效率和误码率性能上讲,该方案相比线性调频二进制正交键控(Chirp BOK)系统具有超过10 dB的误码率性能.因此,该方案具有更好的误码率性能、更高的调制效率及实现更低的复杂度.%According to the characteristics of the up-chirp and down-chirp linear frequency modulation(LFM) signal,a new spread spectrum technology called Cyclic-Shift Chirp Spread Spectrum(CS-CSS) combing with the Chirp spread spectrum(CSS) and the Cyclic Code-ShiftKeying(CCSK) is proposed to solve the problem of low modulation efficiency,low bit error rate(BER) performance and complex implementation in traditional ultra-wide band(UWB) wireless communication systems.Firstly,the input data is mapped on the Cyclic-Shift Factor(CSF).Then,cyclic shift is performed for the Chirp signal collected from baseband and produced by CSF value to realize modulation.Finally,by adding window function processing and fast Fourier transform(FFT) the CSF matching with the transmitter is obtained and the original data isproduced.Because the BER-SNR performance between theoretical analysis and simulation is matched,in the perspective of modulation efficiency and BER performance,the proposed scheme has a BER performance over 10 dB compared with Chirp Binary Orthogonal Keying(Chirp BOK) system.In conclusion,it has better BER performance,higher modulation efficiency and easy implementation.【期刊名称】《电讯技术》【年(卷),期】2017(057)004【总页数】5页(P397-401)【关键词】超宽带通信;线性调频信号;Chirp扩频调制效率;循环移位编码【作者】吴进;孔辉【作者单位】西安邮电大学电子工程学院,西安 710121;西安邮电大学电子工程学院,西安 710121【正文语种】中文【中图分类】TN914.42线性调频(Linear Frequency Modulation,LFM)信号(也称Chirp信号)是一种瞬时频率与时间成正比的正弦波信号，具有很好的自相关性以及极低的互相关性等时域特性，多用于雷达系统、军事通信中。

目录A (3)B (5)C (6)D (8)E (9)F (10)G (10)H (11)I (12)J (13)K (13)L (13)M (14)N (15)O (16)P (16)Q (18)R (19)S (20)T (22)U (23)V (24)W (24)X (25)Y (25)Z (25)WCDMA术语2G：2nd Generation Mobile Communications System 第二代移动通信系统3G，3GMS：3rd Generation Mobile Communications System 第三代移动通信系统3GPP：3rd Generation Partnership Project 第三代合作组织AAAA：Authentication, Authorization, Accounting 鉴权、授权、计费AAL1：ATM Adaptation Layer type 1 ATM适配层类型1AAL2：ATM Adaptation Layer type 2 ATM适配层类型2AAL5：ATM Adaptation Layer type 5 ATM适配层类型5ABR：Available Bit Rate 可用比特率AC：Access Condition接入条件ACCH：Associated Control Channel随路控制信道ACIR：Adjacent Channel Interference Ratio相邻信道干扰比ACK：Acknowledgement应答ACL：Access Control List 访问控制列表ACLR：Adjacent Channel Leakage Power Ratio相邻信道泄漏功率比ACS：Adjacent Channel Selectivity相邻信道选择性ADF：Application Dedicated File应用专用文件ADM：Access condition to an EF which is under the control of the authority which creates this file创建EF的专家控制下的EF的接入条件AND：Abbreviated Dialling Numbers按字母顺序排列的电话号码薄ADT：Adaptive Dynamic Threshold 自适应动态阀值AG：Access Gateway 接入网关AI：Acquisition Indicatior 捕获指示AICH：Acquisition Indication Channel 捕获指示信道AID：Application IDentifier应用标识符AIUR：Air Interface User Rate空中接口用户速率AK：Anonymity key匿名密钥ALCAP：Access Link Control Application Protocol接入链路控制应用协议ALW：ALWays一直AM：Account Management 计费管理AM：Acknowledged Mode 确认模式AMF：Authentication Management Field鉴权管理域AMR：Adaptive MultiRate 自适应多速率AN：Access Network接入网络ANSI：American National Standard Institute 美国国家标准组织AP：Access Point 接入点AP：Access Preamble 接入前导APDU：Application Protocol Data Unit应用协议数据单元API：Application Programming Interface应用程序接口APN：Access Point Name 接入点名称ARP：Address Resolution Protocol 地址解析协议ARQ：Automatic Repeat Request 自动重发请求AS：Application Server 应用服务器AS：Access Stratum 接入层ASC：Access Service Class 接入服务类ASCII：American Standard Code for Information Interchange 美国信息交换标准码ASF：Application Server Function 应用服务器功能ASIC：Application Specific Integrated Circuit 专用集成电路ASN.1：Abstract Syntax Notation One 抽象语法编码1ASP：Application Server Process 应用服务器进程ASP：Access Service Provider 接入服务提供商ATM：Asynchronous Transfer Mode 异步传输模式AuC：Authentication Center 鉴权中心AUTN：Authentication token鉴权令牌AWGN：Additive White Gaussian Noise加性高斯白噪声BB-ISDN：Broadband ISDN宽带ISDNBAIC：Barring of All Incoming Calls 限制所有入呼叫BAIC-Roam：Barring of All Incoming Calls when Roaming outside the home PLMN country 当漫游出归属PLMN国家后，限制入呼叫BAOC：Barring of All Outgoing Calls 限制所有出局呼叫BAS：Broadband Access Server 宽带接入服务器BC：Billing Center 计费中心BCCH：Broadcast Control Channel 广播控制信道BCFE：Broadcast Control Functional Entity广播控制功能实体BCH：Broadcast Channel 广播信道BER：Bit Error Rate 误比特率BGP：Border Gateway Protocol 边界网关协议BHCA：Busy Hour Calling Attempt 忙时试呼次数BICC：Bearer Independent Call Control 承载无关呼叫控制BID ：Binding Identity捆绑标识BIOS：Basic Input Output System 基本输入输出系统BITS：Building Integrated Timing Supply System 通信楼综合定时供给系统BLER：Block Error Rate 误块率BMC：Broadcast/Multicast Control 广播/组播控制BOIC：Barring of Outgoing International Calls supplementary service 禁止国际出局呼叫补充业务BOIC-exHC：Barring of Outgoing International Calls except those directed to the Home PLMN Country 限制所有除归属国外的国际出局呼叫BOM：Bill of Material 物料清单BPSK：Binary Phase Shift Keying二进制移相键控BS：Billing System 计费系统BSC：Base Station Controller 基站控制器BSS：Base Station Subsystem 基站子系统BSSAP：Base Station Subsystem Application Part 基站子系统应用部分BTS：Base Transceiver Station 基站收发信台BWT：Block Waiting Time块等待时间CC-APDU：Command APDU命令APDUC-RNTI：Cell Radio Network Temporary Identity小区无线网络临时识别符C-TPDU：Command TPDU命令TPDUCA：Capacity Allocation 容量分配CAA：Capacity Allocation Acknowledgement 容量分配确认CAMEL：Customized Applications for Mobile network Enhanced Logic 移动网络增强逻辑的客户化应用CAP：CAMEL Application Part CAMEL应用部分CAR：Committed Access Rate 约定访问速度CBR：Constant Bit Rate 恒定比特率CBS：Cell Broadcast Service小区广播业务CC：Call Control 呼叫控制CCBS：Completion of Calls to Busy Subscriber呼叫忙用户的完成CCCH：Common Control Channel 公共控制信道CCF：Conditional Call Forwarding 条件呼叫前转CCF：Call Control Function 呼叫控制功能CCH：Control Channel 控制信道CCM：Certificate Configuration Message授权配置消息CCPCH：Common Control Physical Channel 公共控制物理信道CCTrCH：Coded Composite Transport Channel 编码合成传输信道CD：Collision Detection 碰撞检测CD：Capacity Deallocation 容量释放CDA：Capacity Deallocation Acknowledgement 容量释放确认CDMA：Code Division Multiple Access 码分多址接入CDR：Call Detail Record 呼叫详细记录CDV：Cell Delay V ariation 信元时延抖动CDVT：Cell Delay Variation Tolerance 信元时延抖动容限CFB：Call Forwarding on mobile subscriber Busy 遇忙前转CFN：Connection Frame Number连接帧号CFNRc：Call Forwarding on mobile subscriber Not Reachable 不可及前转CFNRy：Call Forwarding on No Reply 无应答呼叫前转CFU：Call Forwarding Unconditional 无条件呼叫前转CG：Charging Gateway 计费网关CGF：Charging Gateway Functionality 计费网关实体CLR：Cell Loss Rate 信元丢失率CLIP：Calling Line Identification Presentation supplementary service 主叫识别提供补充业务CLIR：Calling Line Identification Restriction supplementary service 主叫识别限制补充业务CM：Configuration Management 配置管理CM：Connection Management 连接管理CMM：Capability Mature Model 能力成熟度模型CN：Core Network 核心网络CNAP：Calling Name Presentation主叫号码显示CNL：Co-operative Network List合作操作网络表CoLI：Connected Line Identity 被叫识别CoLP：Connected Line identification Presentation supplementary service 被叫识别提供补充业务CoLR：COnnected Line identification Restriction supplementary service 被叫识别限制补充业务CORBA：Common Object Request Broker Architecture 公用对象请求代理程序体系结构CPCH：Common Packet Channel 公共分组信道CPCS：Common Part Convergence Sublayer公共聚合子层部分CPICH：Common Pilot Channel 公共导频信道CPLD：Complex Programmable Logical Device 可编程逻辑器件CPS：Common Part Sublayer公共子层部分CPU：Central Processing Unit 中央处理器CRC：Cyclic Redundancy Code 循环冗余码CRC：Cyclic Redundancy Check 循环冗余校验CRNC：Controlling Radio Network Controller主控无线器CS：Circuit Switch 电路交换域CSCF：Call Session Control Function呼叫会话控制功能CSE：Camel Service Environment CAMEL服务环境CSI：CAMEL Subscription Information CAMEL用户签约信息CTCH：Common Traffic Channel 公共业务信道CTDMA：Code Time Division Multiple Access 码分-时分多址CUG：Closed User Group 闭合用户群CW：Call Waiting 呼叫等待(补充业务)DDC：Dedicated Control (SAP) 专用控制(SAP)DCA：Dynamic Channel Allocation 动态信道分配DCFE：Dedicated Control Functional Entity 专用控制功能实体DCCH：Dedicated Control Channel 专用控制信道DCH：Dedicated Channel 专用信道DDN：Defense Data Service 防卫数据网DL：Downlink (Forward link) 下行链路(前向链路)DNS：Domain Name Server 域名服务器DPC：Destination Point Code 目的地信令点编码DPCCH：Dedicated Physical Control Channel 专用物理控制信道DPCH：Dedicated Physical Channel 专用物理信道DPDCH：Dedicated Physical Data Channel 专用物理数据信道DoS：Denial of Service 拒绝服务DRAC：Dynamic Resource Allocation Control 动态资源分配控制DRNC：Drift Radio Network Controller 漂移无线网络控制器DRNS：Drift RNS 漂移RNSDRX：Discontinuous Reception 非连续接收DSCH：Downlink Shared Channel 下行共享信道DS-CDMA：Direct-Sequence Code Division Multiple Access 直接序列码分多址DSP：Data Signal Processor 数字信号处理器DSS1：Digital Subscriber Signaling No.1 1号数字用户信令(协议)DTCH：Dedicated Traffic Channel 专用业务信道DTMF：Dual Tone Multiple Frequency 双音多频DTX：Discontinuous Transmission 非连续发送EEACL：Expand ACL 扩展ACLEC：Echo Cancellation 回声消除Ec/No：Received energy per chip divided by the power density in the band 每码片接收能量/ 功率密度EIR：Equipment Identity Register 设备识别寄存器EMC：Electro Magnetic Compatibility 电磁兼容性EMS：Element Management System 网元管理系统ETSI：European Telecommunications Standards Institute 欧洲电信标准组织FFA：Foreign Agent 外部代理FACH：Forward Access Channel 前向接入信道FAUSCH：Fast Uplink Signaling Channel 快速上行信令信道FBI：Feedback Information 反馈信息FCS：Fame Check Sequence 帧检测序列FDD：Frequency Division Duplex 频分双工FDDI：Fiber Distributed Digital Interface 光纤分布式数字接口FDMA：Frequency Division Multiple Access 频分多址FE：Fast Ethernet 快速以太网FEC：Forward Error Correction 前向纠错FER：Frame Error Rate 误帧率FFS：For Further Study 有待下一步研究FM：Fault Management 故障管理FPGA：Field Programmable Gate Array 现场可编程门阵列FPLMTS：Future Public Land Mobile Telephone System 未来陆地移动电话系统FR：Frame Relay 帧中继FTAM：File Transfer, Access and Management 文件传输、存取(访问)与管理FTAM：File Transfer Access and Management 文件传输接入与管理FTP：File Transfer Protocol 文件传输协议GGC：General Control (SAP) 通用控制(SAP)G-CDR：GGSN-CDR GGSN产生的有关PDP context的计费数据记录GE：Gigabit Ethernet 千兆以太网GF：Galois Field 伽罗华域GGSN：Gateway GPRS Support Node 网关GPRS支持节点GMLC：Gateway Mobile Location Center 网关移动位置中心GMM：GPRS Mobility Management GPRS移动性管理GMSC：Gateway Mobile-services Switching Center 网关移动业务交换中心GMT：Greenwich Mean Time 格林尼治标准时间GP：Guard Period 保护周期GPRS：General Packet Radio Service 通用分组无线业务GPS：Global Position System 全球定位系统GRE：Generic Routing Encapsulation 通用路由封装GSM，GSM900，GSM1800：Global System for Mobile communications 全球移动通信系统，900MHz的GSM系统，1800MHz的GSM系统GSN：GPRS Support Node GPRS支持节点GSPU：GGSN Signaling Process Unit GGSN信令处理单元GT：Global Title 全球寻址码GTP：GPRS Tunneling Protocol GPRS隧道协议GTP-C：GPRS Tunneling Protocol for control plane GPRS隧道协议控制面GTP-U：User plane of GPRS Tunneling Protocol GPRS隧道协议用户面GUI：Graphic User Interface 图形用户界面GW：GateWay 网关HH.248：H.248/Megaco protocol H.248媒体网关控制协议HCS：Hierarchical Cell Structure 层次蜂窝结构HDLC：High Data Link Control 高速数据链路规程HLR：Home Location Register 归属位置寄存器HO：Handover 切换HOLD：Call Hold 呼叫保持HPLMN：Home PLMN 归属PLMNHTTP：Hyper Text Transfer Protocol 超文本传输协议HW：High Way 高速信号线IICMP：Internet Control Message Protocol 因特网控制报文协议ICP：Internet Content Provider 互联网内容提供商IDE：Integrated Device Electronics 集成设备电路IDP：Intercept Data Product 监听数据包IEC：International Electrotechnical Commission 国际电工委员会IETF：Internet Engineering Task Force 互联网工程任务组iGWB：iGateway Bill 计费网关IMA：Inverse Multiplexing on ATM ATM反向复用IMEI：International Mobile station Equipment Identity 国际移动终端设备标识IMSI：International Mobile Subscriber Identity 国际移动用户标识IMT-2000：International Mobile Telecommunication 2000 国际移动通信系统2000 IN：Intelligent Network 智能网IP：Internet Protocol 互联网协议IPBCP：IP Bearer Control Protocol IP承载控制协议IPCP：IP Control Plane IP控制面IPOA：IP Over ATM ATM承载IPIRI：Intercept Related Information 监听相关信息ISCP：Interference on Signal Code Power 信号码功率干扰ISCP：Interference Signal Code Power 干扰信号码功率ISDN：Integrated Services Digital Network 综合业务数字网IS-IS：Intermediate System-to-Intermediate System 中间系统到中间系统路由协议ISP：Internet Service Provider 互联网业务提供商ISUP：ISDN User Part (of signalling system No.7) (七号信令之)ISDN用户部分ITU：International Telecommunications Union 国际电信联盟(国际电联)ITU-T：ITU Telecommunication Standardization Sector ITU电信标准化组(部)JD：Joint Detection 联合检测JTAG：Joint Test Action Group 联合测试行动小组KKbps：kilo-bits per second 千比特/秒LL1：Layer 1 (physical layer) 第一层(物理层)L2：Layer 2 (data link layer) 第二层(数据链路层)L3：Layer 3 (network layer) 第三层(网络层)LAC：Link Access Control 链路接入控制LAI：Location Area Identity 位置区域识别LAN：Local Area Network 局域网LCD：Liquid Crystal Display 液晶显示器LCS：Location Services 位置业务LDAP：Lightweight Directory Access Protocol 轻量级目录访问协议。

編號縮略語英文全稱中文解釋說明MSCBSC 移動通信論壇,d$k)l#g(O4N3X1A/DAnalogue to Digital Converter 模數轉換無#T,@8k4}8K#b0F2A3Authetication algorithm A3A3認證演算法無3N"x5`+B*Q.m8z6~"e3A38A single algorithm performing the functions of A3 and A8執行A3和A8功能的單個演算法無/H$L!s8E7kMSCBSC移動通信論壇4A5/1Encryption algorithm A5/1A5/1加密演算法無)S%v8c,h)R#E9J!d5A8Ciphering Key generating algorithm A8產生A8演算法的加密密匙無6V/V)@;_$x&T3X5g:6AAAAuthenticatio n，Authorization，Accounting鑒權，認證，清算無8B9j4~2G+c-K!k | 國內領先的通信技術論壇7ABAccess Burst 接入突發無mscbsc 移動通信論壇擁有30萬通信專業人員，超過50萬份GSM/3G等通信技術資料，是國內領先專注於通信技術和通信人生活的社區。

a9O5B;{7G:}&Z%z8Abis interfaceAbis interfaceAbis介面基站與基站控制器之間…mscbsc 移動通信論壇擁有30萬通信專業人員，超過50萬份GSM/3G等通信技術資料，是國內領先專注於通信技術和通信人生活的社區。

;X0}+v4^4Z:]&|9ACAuthentication Centre鑒權中心無4t9u$q!^2E9S9q | 國內領先的通信技術論壇10 AC Application Context 應用場景無/o6@2L)`"v5f11 AC Access Class(C0 to C15) C0至C15接入類型無移動通信,通信工程師的家園,通信人才,求職招聘,網路優化,通信工程,出差住宿,通信企業黑名單+c(t%f!N.]5~"w-o12 AC Access Controller 用戶接入認證點WLAN用戶接入認證…5}$j0^!`!u$QMSCBSC 移動通信論壇13 ACC Automatic Congestion Control 自動擁塞控制無| 國內領先的通信技術論壇/]%`,|&x1x,i14 ACCH Associated Control Channel 隨路控制通道無| 國內領先的通信技術論壇'u(V%?2k+z.W.s2X6F+J%z-N15 ACK ACKnowledgement 確認用於信令+O;X5Q(q(G,|16 ACL Asynchron ous Connectionless Link 非同步無連接無']1y*J(W"u$W#?#M移動通信,通信工程師的家園,通信人才,求職招聘,網路優化,通信工程,出差住宿,通信企業黑名單17 ACM Address Complete Message 地址完成消息無7O'l(p!Y'd!D4u-E移動通信,通信工程師的家園,通信人才,求職招聘,網路優化,通信工程,出差住宿,通信企業黑名單18 ACM Accumulated Call Meter 累計呼叫記錄無%E5S7B:d's!k%L*Q!B19 ACP Adjacent Channel Power 鄰道功率無移動通信,通信工程師的家園,通信人才,求職招聘,網路優化,通信工程,出差住宿,通信企業黑名單,p'_8q)|1g&Y1R20 ACU Antenna Combining Unit 天線組合(耦合)單元無| 國內領先的通信技術論壇"]*u,_ {8v,C [/r0s 21 ADC Administration Centre 管理中心無-k,n"O)q't&j | 國內領先的通信技術論壇22 ADPCM Adaptive Differential Pulse Code Modulation 自適應差分脈衝編碼調製無MSCBSC 移動通信論壇+F#n/H"Z6]1k#m*H23 AE Application Entity 應用實體無,@"J+c%V$n+E#L7I&Q+o.{24 AEC Acoustic Echo Control 回聲控制無#u;X$g0e2t n&v;zmscbsc 移動通信論壇擁有30萬通信專業人員，超過50萬份GSM/3G等通信技術資料，是國內領先專注於通信技術和通信人生活的社區。

计算机专业英语缩写表AAAT(Average Access Time) 平均存取时间ACL(Access Control Lists)访问控制表ACK(acknowledgement character )确认字符ACPI (Advanced Configuration and Power Interface)高级配置和电源接口ADC(Analog to Digital Converter) 模数转换器ADSL(Asymmetric Digital Subscriber Line)非对称用户数字线路ADT(Abstract Data Type) 抽象数据类型AGP(Accelerated Graphics Port)图形加速端口AI( Artif icial Intelligence)人工智能AIFF(Audio Image File Format)声音图像文件格式ALU(Arithmetic Logical Unit) 算术逻辑单元AM(Amplitude Modulation)调幅ANN(Artificial Neural Network) 人工神经网络ANSI( American National Standard Institute)美国国家标准协会API(Application Programming Interface)应用程序设计接口APPN(Advanced Peer-to-Peer Network)高级对等网络ARP(Address Resolution Protocol )地址分辨/ 转换协议ARPG(Action Role Playing Game)动作角色扮演游戏ASCII (American Standard Code for Information Interchange)美国信息交换标准代码ASP(Active Server Page)活动服务器网页ASP( Application Service Provider)应用服务提供商AST( Average Seek Time)平均访问时间ATM(asynchronous transfer mode)异步传输模式ATR (Automatic Target Recognition) 自动目标识别A VI (Audio Video Interleaved)声音视频接口BB2B(Busines s to Business)商业机构对商业机构的电子商务B2C(Business to Consumer)商业机构对消费者的电子商务BBS(bulletin board system)电子公告牌系统BER(Bit Error Rate)误码率BFS (Breadth First Search) 广度优先搜索BGP(Border Gateway Protocol )边缘网关协议BIOS(basic input / output system)基本输入输出系统BISDN(Broadband- Integrated Services Digital Network)宽带综合业务数字网BLU(Basic Link Unit)基本链路单元BOF(Beginning Of File)文件开头BPS(Bits Per Second)每秒比特数BRI(Basic Rate Interface)基本速率接口BSP(Byte Stream Protocol )字节流协议BSS(Broadband Switching System)宽带交换系统CCAD(Computer Aided Design)计算机辅助设计CAE(Computer-Aided Engineering)计算机辅助工程CAI(Computer Aided Instruction)计算机辅助教学CAM(Computer Aided Manufacturing)计算机辅助管理CASE(Computer Assisted Software Engineering)计算机辅助软件工程CAT(Computer Aided Test)计算机辅助测试CATV(Community Antenna Television)有线电视CB( control bus)控制总线CCP(Communication Control Procrssor)通信控制处理机CD（Compact Disc）压缩光盘，只读光盘CD-R（Compact Disc-Recordable）可录光盘，只写一次的光盘CDFS(Compact Disk File System)密集磁盘文件系统CDMA（Code Division Multiple Access）码分多路访问CD-MO(Compact Disc-Magneto Optical )磁光式光盘CD-ROM( compact disc read-only memory)只读光盘CD-RW( compact disc rewritable)可读写光盘CGA(Color Graphics Adapter )彩色显示器CGI( common gateway interface)公共网关接口CI(Computational Intelligence)计算智能CISC (Complex Instruction Set Computer) 复杂指令集计算机CMOS（Complementary Metal Oxide Semiconductor）互补金属氧化物半导体存储器COM(Component object model)组件对象模型CORBA(Common Object Request Broker Architecture)公共对象请求代理结构CPU( central proces sing unit)中央处理单元CRC( cyclical redundancy check)循环冗余校验码CRM(Client Relation Management)客户关系管理CRT(Cathode-Ray Tube)阴极射线管,显示器CSMA (Carrier Sense Multi -Access)载波侦听多路访问CSU（Channel Service Unit）信道服务单元CU（Control Unit）控制单元DDAC(Digital to Analogue Converter)数模转换器DAO(Data Access Object)数据访问对象DAP(Directory Acces s Protocol )目录访问协议DBMS(Database Management System)数据库管理系统DCE(data communication equipment)数据通信设备DCE(Distributed Computing Environment)分布式计算环境DCOM( Distributed COM)分布式组件对象模型DDB(Distributed DataBase)分布式数据库DDE(Dynamic Data Exchange)动态数据交换DDI( Device Driver Interface)设备驱动程序接口DDK(Driver Development Kit)驱动程序开发工具包DDN(Data Digital Network)数据数字网DEC(Digital Equipment Corporation)数字设备公司DES( Data Encryption Standard)数据加密标准DFS(Depth First Search) 深度优先搜索DFS(Distributed File System(Windows 2000) )分布式文件系统DHCP( Dynamic Host Configuration Protocol )动态主机配置协议DIB(Dual Independent Bus)双独立总线DIC(Digital Image Control)数字图像控制DLC（Data Link Control）数据链路控制DLL(Dynamic Link Library)动态链接库DLT（Data Link Terminal）数据链路终端DMA(Direct Memory Acces s)直接内存访问DMSP(Distributed Mail System Protocol )分布式电子邮件系统协议DNS(Domain Name System)域名系统DOM(Document Object Mode)文档对象模型DOS( Disk Operation System)磁盘操作系统DQDB (Distributed Queue Dual Bus) 分布式队列双总线DRAM（Dynamic Random Access Memory）动态随机存取存储器DSD（Direct Stream Digital）直接数字信号流DSL(Digital Subscriber Line)数字用户线路DSM(Distributed Shared Memory)分布式共享内存DSP( Digital Signal Processing)数字信号处理DTE( Data Terminal Equipment)数据终端设备DVD( Digital Versatile Disc )数字多功能盘DVD-ROM（DVD-Read Only Memory）计算机用只读光盘DVI (Digital Video Interactive)数字视频交互EEC（Embedded Controller）嵌入式控制器EDIF (Electronic Data Interchange Format) 电子数据交换格式EEPROM(Erasable and Electrically Programmable ROM)电擦除可编程只读存储器EGA(Enhanced Graphics Adapter)彩色显示器,分辨率为640×350 ,可以显示16 种颜色EGP(External Gateway Protocol)外部网关协议EISA(Extended Industry Standard Architecture)增强工业标准结构EMS(Expanded Memory Specification)扩充存储器规范EPH(Electronic payment Handler )电子支付处理系统EPROM(Erasable Programmable ROM)可擦除可编程只读存储器ERP(Enterprise Resource Planning)企业资源计划ETM(ExTended Memory)扩展存储器FFAT(File Allocation Table)文件分配表FCB(File Control Block)文件控制块FCFS(First Come First Service)先到先服务FCS(Frame Check Sequence)帧校验序列FDD(Floppy Disk Device)软盘驱动器FDDI(Fiber-optic Data Distribution Inter face)光纤数据分布接口FDM(Frequency-Division Multiplexing)频分多路FDMA(Frequency Division Multiple Address)频分多址FEC (Forward Error Correction) 前向纠错FEK(File Encryption Key)文件密钥FEP(Front Ef fect Processor )前端处理机FET（Field Effect Transistor）场效应晶体管FIFO(First In First Out)先进先出FM（Frequency Modulation）频率调制FPU（Float Point Unit）浮点部件FRC(Frame Rate Control )帧频控制FTAM(File Transfer Access and Management)文件传输访问和管理FTP(File Transfer Protocol)文件传输协议GGAL(General Array Logic)通用逻辑阵列GCR（Group-Coded Recording）成组编码记录GDI( Graphics Device Interface)图形设备接口GIF(Graphics Interchange Format)一种图片文件格式,图形转换格式GIS( Geographic Information System)地理信息系统GPI( Graphical Programming Interface)图形编程接口GPIB(General Purpose Interface Bus)通用接口总线GPS(Global Positioning System)全球定位系统GSX( Graphics System Extension)图形系统扩展GUI(Graphical User Interface)图形用户接口HHDC(Hard Disk Control )硬盘控制器HDD(Hard Disk Drive)硬盘驱动器HDLC(High-level Data Link Control )高级数据链路控制HDTV（High-Defination Television）高清晰度电视HEX(HEXadecimal )十六进制HPFS（High Performance File System）高性能文件系统HPSB (High Performance Serial Bus) 高性能串行总线HTML(Hyper Text Markup Language)超文本标记语言HTTP(Hyper Text Transport Protocol)超文本传输协议IIAC(Inter-Application Communications)应用间通信IC（Integrated Circuit）集成电路ICMP( Internet Control Mes sage Protocol)因特网控制消息协议ICP( Internet Content Provider)因特网内容服务提供商,是ISP中提供信息服务的一种机构IDC( International Development Center)国际开发中心IDE( Integrated Development Environment)集成开发环境IDL( Interface Def inition Language)接口定义语言IEEE( Institute of Electrical and Electronics Engineering)电子电器工程师协会IGP (Interior Gateway Protocol) 内部网关协议IIS( Internet Information Service)因特网信息服务IP( Internet Protocol)因特网协议IPC( Inter-Proces s Communication)进程间通信IPSE( Integrated Project Support Environments)集成工程支持环境IPX(Internet Packer Exchitecture)互联网报文分组交换ISA( Industry Standard Architecture)工业标准结构,是IBM PC/ XT总线标准ISDN( Integrated Service Digital Network)综合业务数字网ISO ( International Standard Organization)国际标准化组织ISP( Internet Service Provider )因特网服务提供者IT (Information Technology) 信息技术ITU( International Telecom Union)国际电信联盟JJDBC(Java Database Connectivity) J ava数据库互联JPEG(Joint Photographic Experts Group)联合图片专家组JSP(Java Server Page) J ava 服务器页面技术JVM(J ava Virtual Machine)J ava虚拟机KKB(Kilobyte)千字节KBPS(Kilobits Per Second)每秒千比特KMS( Knowledge Management System)知识管理系统LLAN(Local Area Network)局域网LBA（Logical Block Addressing）逻辑块寻址LCD(Liquid Crystal Display)液晶显示器LDT（Logic Design Translator）逻辑设计翻译程序LED(Light Emitting Diode)发光二极管LIFO（Last In First Out）后进先出LP（Linear Programming）线性规划LPC(Local Procedure Call)局部过程调用LSIC(Large Scale Integration Circuit)大规模集成电路MMAC(Medium Access Control )介质访问控制MAN(Metropolitan Area Network)城域网MBR（Master Boot Record）主引导记录MC(Memory Card)存储卡片MCA(Micro Channel Architecture)微通道结构MDA（Monochrome Display Adapter）单色显示适配卡MFM（Modified Frequency Modulation）改进调频制MIB(Management Information Bass)管理信息库MIDI (Musical Instrument Digital Interface) 乐器数字接口MIMD(Multiple Instruction Stream,Multiple Data Stream)多指令流,多数据流MIPS（Million Instructions Per Second）每秒百万条指令MIS(Management Information System)管理信息系统MISD(Multiple Instruction Stream,Single Data Stream)多指令流,单数据流MMDS(Multi-channel Multipoint Distribution Service)多波段多点分发服务器MMU(Memory Management Unit)内存管理单元MMXMPC(Multimedia PC)多媒体计算机MPEG(Moving Picture Expert Group) 一种视频和音频的国际标准格式MPLS(Multi-Protocol Label Switching)多协议标记交换MPS（Micro Processor System）微处理器系列MTBF（Mean Time Between Failures）平均故障间隔时间MUD(Multiple User Dimension)多用户空间NNAOC(No-Account Over Clock)无效超频NAT (Network Address Translation) 网络地址转换NC(Network Computer)网络计算机NDIS(Network Device Interface Speci fication)网络设备接口规范NCM(Neural Cognitive Maps)神经元认知图NFS(Network File System)网络文件系统NIS(Network Information Services)网络信息服务NNTP（Network News Transfer Protocol）网络新闻传输协议NOC (Network Operations Center) 网络操作中心NSP(Name Server Protocol )名字服务器协议NTP(Network Time Protocol)网络时间协议NUI（network user identification）网络用户标识OOA(Of f ice Automation)办公自动化OCR（Optical Character Recognition）光学字符识别ODBC(Open Database Connectivity)开放式数据库互联ODI(Open Data- link Interface)开放式数据链路接口OEM( Original Equipment Manufactures)原始设备制造厂家OLE(Object Linking and Embedding)对象链接与嵌入OMG(Object Management Group)对象管理组织OMR(Optical-Mark Recognition)光标阅读器OOM(Object Oriented Method)面向对象方法OOP( Object Oriented Programming)面向对象程序设计ORB(Object Request Broker)对象请求代理OS(Operating System)操作系统OSI (Open System Interconnect Reference Model)开放式系统互联参考模型OSPF(Open Shortest Path First)开发最短路径优先PPBX(Private Branch Exchange)用户级交换机PCB(Process Control Block)进程控制块PCI(Peripheral Component Interconnect)外部连接互联,是一种局部总线PCM(Pulse Code Modulation)脉冲编码调制PCS (Personal Communications Service) 个人通信业务PDA(Personal Digital As sistant)个人数字助理PDF(Portable Document Format)便携式文档格式PDN(Public Data Network)公共数据网PHP（Personal Home Page）个人网页PIB(Programmable Input Buffer)可编程输入缓冲区PMMU (Paged Memory Management Unit)页面存储管理单元POP(Post Of f ice Protocol )邮局协议POST(Power-On Self -Test)加电自检PPP(Peer-Peer Protocol)端对端协议PPP(Point to Point Protocol)点到点协议PPSN(Public Packed-Switched Network)公用分组交换网PR(Performance Rate)性能比率PROM(Programmable ROM)可编程只读存储器PSN(Processor Serial Number)处理器序列号QQC(Quality Control )质量控制QLP( Query Language Proces sor)查询语言处理器QoS( Quality of Service)服务质量RRAD(Rapid Application Development)快速应用开发RAI(Remote Application Interface)远程应用程序界面RAID(Redundant Array Independent Disk) 冗余列阵磁盘机RARP（Reverse Address Resolution Protocol）反向地址解析协议RAM(Random Acces s Memory)随机存储器RAM(Real Address Mode)实地址模式RAID(Redundant Arrays of Inexpensive Disks)冗余磁盘阵列技术RAS（Remote Access Service）远程访问服务RCP(Remote CoPy)远程复制RDA(Remote Data Access)远程数据访问RDO (Remote Data Objects) 远程数据对象RF (Radio Frequency) 射频，无线电频率RIP(Raster Image Protocol)光栅图像处理器RIP(Routing Information Protocol )路由选择信息协议RISC(Reduced Instruction Set Computer)精简指令集计算机ROM( Read Only Memory)只读存储器RPC(Remote Procedure Call )远程过程调用RPG（Role Play Games）角色扮演游戏RPM（Revolutions Per Minute）转/分RTS( Request To Send)请求发送RTSP (Real Time Streaming Protocol) 实时流协议SSACL (System Access Control List) 系统访问控制列表SAF(Store And Forward)存储转发SAP(Service Acces s Point)服务访问点SCSI(Small Computer System Interface)小型计算机系统接口SDLC(Synchronous Data Link Control )同步数据链路控制SDK(Software Development Kit)软件开发工具箱SGML(Standard Generalized Markup Language)标准通用标记语言SHTTP(Secure Hype Text Transfer Protocol )安全超文本传递协议SIMD(Single Instruction Stream,Multiple Data Stream)单指令流,多数据流SISD(Single Instruction Stream,Single Data Stream)单指令流,单数据流SLIP（Serial Line Interface Protocol）串行线路接口协议SMDS(Switch Multi-megabit Data Services)交换多兆位数据服务SMP(Symmetric Multi-Processor)对称式多处理器SMTP(Simple Mail Transport Protocol)简单邮件传输协议SNA(System Network Architecture)系统网络结构SNMP(Simple Network Management Protocol )简单网络管理协议SNR（Signal Noise Ratio）信噪比SNTP(Simple Network Time Protocol )简单网络时间协议SONC(System On a Chip)系统集成芯片SONET(Synchronous Optic Network)同步光纤网SPC(Stored-Program Control)存储程序控制SQL(Structured Query Language)结构化查询语言SRAM（Static Random Access Memory）静态随机存储器SRPG (Strategies Role Play Games) 战略角色扮演游戏SSL (Secure Sockets Layer) 安全套接层STDM(Synchronous Time Division Multiplexing)同步时分复用STG(Shoot Game)射击类游戏STP(Shielded Twisted-Pair )屏蔽双绞线SVGA (Super Video Graphics Array) 超级视频图形阵列TTCB(Transmission Control Block)传输控制块TCP(Transmis sion Control Protocol )传输控制协议TCP/ IP(Transmission Control Protocol / Internet Protocol )传输控制协议/ 网间协议TDM(Time Division Multiplexing)时分多路复用TDMA(Time Division Multiplexing Addres s)时分多址技术TDR(Time-Domain Reflectometer)时间域反射测试仪TFT(Thin Film Transistor Monitor)薄膜晶体管显示器TFTP(Trivial File Transfer Protocol)简单文件传送协议TIFF(Tag Image File Format)标记图形文件格式TIG(Task Interaction Graph)任务交互图TLI(Transport Layer Interface)传输层接口TM(Traffic Management)业务量管理，流量管理TPS(Transactions Per Second)（系统）每秒可处理的交易数TSR(Terminate and Stay Resident)终止并驻留TTL(Transistor-Transistor Logic)晶体管—晶体管逻辑电路TWX(Teletypewriter Exchange)电传电报交换机UUART(Universal Asynchronous Receiver Transmitter )通用异步收发器UDF(Universal Disk Format)通用磁盘格式UDP(User Datagram Protocol )用户数据报协议UHF(Ultra High Frequency)超高频UI(User Interface)用户界面，用户接口UIMS(User Interface Management System)用户接口管理程序UNI (User Network Interface)用户网络接口UPA(Ultra Port Architecture)超级端口结构UPS(Uninterruptible Power Supply)不间断电源URI (Uniform Resource Identi fier )环球资源标识符URL(Uniform Resource Locator)统一资源定位器USB(Universal Serial Bus)通用串行总线UTP(Unshielded Twisted-Pair )非屏蔽双绞线UXGA(Ultra Extended Graphics Array)超强图形阵列VV AD( Virtual Addres s Descriptors)虚拟地址描述符V AGP (Variable Aperature Grille Pitch) 可变间距光栅V AN( Value Added Network)增值网络V AP( Value-Added Process)增值处理V AS(Value-Added Server)增值服务V AX(Virtual Address eXtension)虚拟地址扩充VBR(Variable Bit Rate)可变比特率VC(Virtual Circuit)虚拟线路VCPI( Virtual Control Program Interface)虚拟控制程序接口VDD( Virtual Device Driver s)虚拟设备驱动程序VDR( Video Disc Recorder )光盘录像机VDT( Video Display Terminals)视频显示终端VDU（Visual Display Unit）视频显示单元VFS( Virtual File System)虚拟文件系统VGA( Video Graphics Adapter )视频图形适配器VHF（Very High Frequency）甚高频VIS( Video Information System)视频信息系统VLAN(Virtual LAN)虚拟局域网VLIW（Very Long Instruction Word）超长指令字VLSI (Very Large Scale Integration)超大规模集成VMS(Virtual Memory System)虚拟存储系统VOD( Video On Demand)视频点播系统VON( V oice On Net)网上通话VPN( Virtual Private Network)虚拟专用网VR( Virtual Reality)虚拟现实VRML(Virtual Reality Modeling Language)虚拟现实建模语言VRR(Vertical Refresh Rate)垂直刷新率VTP(Virtual Terminal Protocol )虚拟终端协议WW AN(Wide Area Network)广域网W AE(Wireles s Application Environment)无线应用环境W AIS(Wide Area Information Service)广义信息服务,数据库检索工具W AP(Wireles s Application Protocol)无线应用协议W A V(Wave Audio Format)非压缩的音频格式文件WDM(Wavelength Division Multiplexing)波分多路复用WDP(Wireless Datagram Protocol )无线数据包协议WFW(Windows for Workgroups)工作组窗口WML(Wireles s Markup Language)无线标记语言WMP(Windows Media Player)Windows媒体播放器WORM(Write Once, Read Many time)写一次读多次光盘WWW(World Wide Web)万维网WYSIWYG(What You See Is What You Get)所见即所得XXGA( eXtended Graphics Array)扩展图形阵列XML(eXtensible Markup Language)可扩展标记语言XMS(eXtended Memory Speci fication)扩展存储器规范XQL(eXtensible Query Language)可扩展查询语言XSL(eXtensible Stylesheet Language) 可扩展样式表语言ZZA( Zero and Add)清零与加指令ZBR( Zone Bit Recording)零位记录制。

网络工程师英文缩写ACF/VTAM Advanced communication facility/Virtual telecommunication access method ★APA 图形方式★AMI Alternate mark inversion 信号交替反转编码★ALU 逻辑运算单元★A/N 字符/数字方式★APPN Advanced peer-to-peer networking 高级点对点网络★ASN.1 Abstract syntax notation 1 第一个抽象语法★ASCE Association control service Element 联系控制服务元素★ASE Application service element 应用服务元素★ASK 幅度键控★ACK 应答信号★ARQ Automatic repeat request 自动重发请求★ARP Address resolution protocol 地址分解协议★ARIS Aggragateroute-based IP switching ★ADCCP Advanced data communication control procedure ★ATM Asynchronous transfer mode 异步传输模式★ABM Asynchronous balanced mode 异步平衡方式★ARM Asynchronous response mode 异步响应方式★AFI Authority and format identifier ★ABR Available bit rate 有效比特率★AAL ATM adaptation layer ATM适配层★AC Acknowledged connectionless 无连接应答帧★ACL 访问控制清单★AS Autonomous system 自治系统★ABR Available bit rate 可用比特率★AP Access point 接入点★ANS Advanced network services 先进网络服务★ARP Address resolution protocol 地址解析协议★ANSI 美国国家标准协会★AMPS Advanced mobile phone system 先进移动电话系统★ARQ Automatic repeat request 自动重发请求★ADCCP Advanced data communication control procedure 高级数据通信过程★ACTS Advanced communication technology satellite 先进通信技术卫星★ACR Actual cell rate 当前速率★ASN.1 Abstract syntax notation one 抽象语法符号1 ★ADSL Asymmetric digital subscriber line 非对称数字用户线路★ADSI Active directory scripting interface ★ADC Analog digital converter 模数转换器★API 应用程序接口★ARPA Advanced research projects agency 美国高级研究规划局★ACE 访问控制条目★ASP Active server pages ★ARC Advanced RISC computing ★AH 认证头★ADS Active directory service 活动目录服务★ATU-C ADSL transmission Unit-Central 处于中心位置的ADSL Modem ★ATI-R ADSL transmission Unit-Remote 用户ADSL Modem ★BMP Burst mode protocol 突发模式协议★BECN 向后拥塞比特★B-ISDN Broadband integrated service digital network 宽带ISDN ★BSA Basic service area 基本业务区★BSS Basic service set 基本业务区★BGP Border gateway protocol 边界网关协议★BER Basic encoding rules 基本编码规则★BAP Bandwidth allocation protocol 动态带宽分配协议★BACP Bandwidth allocation control protocol 动态带宽分配控制协议★BRI Basic rate interface 基本速率接口★BIND Berkeley internet name domain UNIX/Linux域名解析服务软件包★BPDU Bridge protocol data unit 桥接协议数据单元★BER Basic encoding rule ★CRT 阴极射线管★CCW 通道控制字★CSWR 通道状字寄存器★CAWR 通道地址字寄存器★CN Campus network 校园网★CNNIC 中国互联网络信息中心★ChinaNET 中国公用计算机互联网★CERNET 中国教育科研网★CSTNET 中国科学技术网★CHINAGBN 国家公用经济信息能信网络★CCITT Consultative committee international telegraph and telephone ★CEP Connection end point 连接端点★CP Control point 控制点★CONS 面向连接的服务★CCR Commitment concurrency and recovery 并发和恢复服务元素★CMIP Common management information protocol 公共管理信息协议★CMIS Common management information service 公共管理信息服务★CATV 有线电视系统★CRC Cyclic redundancy check 循环冗余校验码★CBC 密码块链接★CLLM Consolidated link layer management 强化链路层管理★CLP Cell loss priority ★CSMA/CD Carrier sense multiple access/collision detection 带冲突检测介质访问控制★CBR Constant bit rate 固定比特率★CEPT 欧洲邮电委员会★CCK Complementary code keying ★CLNP Connectionless network protocol 无连接的网络协议★CIDR Classless inter-domain routing 无类别的域间路由★CERN The European center for Nuclear Research 欧洲核子研究中心★CGI Common gateway interface 公共网关接口★CIX Commercial internet exchange 商业internet交换★CAU Controlled access unit 中央访问单元★CDDI Copper distributed data interface ★CDPD Celluar digital packet data 单元数字分组数据★CS Convergence sublayer 汇集子层★CDMA Code division multiple access 码分多址★CBR Constant bit rate 恒定比特率★CVDT Cell variation delay tolerance 信元可变延迟极值★CLR Cell loss ratio 信元丢失比率★CHAP Challenge handshake authentication protocol 挑战握手认证协议★CTD Cell transfer delay 信元延迟变化★CER Cell error ratio 信元错误比率★CMR Cell misinsertion rate 错误目的地信元比率★CPI Common part indicator 公用部分指示器★CGI Common gateway interface 公共网关接口★CLUT Color look up table 颜色查找表★CCITT 国际电报电话咨询委会会★CLSID 类标识符★CCM 计算机配置管理★CAP Carrierless amplitude-phase modulation ★Capture trigger 捕获触发器★CSNW Client service for netware Netware客户服务★CA 证书发放机构★CRL Certificate revocation list 证书吊销列表★CPK/CDK Conbined public or double key 组合公钥/双钥★CAE 公共应用环境★CM Cable modem 电缆调制解调器★CMTS 局端系统★CCIA 计算机工业协会★CMIS Common management information service 公共管理信息服务★CMIP Common management information protocol 公共管理信息协议★CGMP 分组管理协议★★★DBMS 数据库管理系统★DS Data Stream 数据流★DS Directory service 目录服务★DSL Digital subscriber line 数字用户线路★DSLAM DSL access multiplexer ★DSSS Direct swquence spread spectrum 直接序列扩展频谱★DARPA 美国国防部高级研究计划局★DNA Digital Network Architecture 数字网络体系结构★DCA Distributed Communication Architecture 分布式通信体系结构★DLC Data link control 数据链路控制功能★DLCI Data link connection identifier 数据链路连接标识符★DTE Data terminal equipment 数据终端设备★DCE Date circuit equipment 数据电路设备★DPSK Differential phase shift keying 差分相移键控★DTMF 双音多频序列★DCC Data county code ★DSP Domain specific part ★DPSK 差分相移键控★DQDB Distributed queue dual bus 分布队列双总线★DFIR Diffused IR 漫反射红外线★DCF Distributed coordination function 分布式协调功能★DOD 美国国防部★DNS Domain name system 域名系统★DLS Directory location service ★DAT Dynamic address translation 动态地址翻译★DCS Distributed computing system ★DIS Draft internation standard 国际标准草案★DSMA Digital sense multiple access 数字侦听多路访问★DES Data encrytion standard 数据加密标准★DSS Digital signature standard 数字签名标准★DSA 目录服务代理★DMSP Distributed mail system protocol 分布式电子邮件系统协议★DPCM Differential pulse code modulation 差分脉冲码调制★DCT Discrete cosine trasformation 离散余弦变换★DVMRP Distant vector multicast routing protocol 距离向量多点播送路由协议★DHCP Dynamic host configuration protocol 动态主机配置协议★DFS 分布式文件系统★DES 数据加密标准★DCD 数据载波检测★DSMN Directory server manager for netware Netware目录服务管理器★DSL Digital subscriber line 数字用户线路★DDN Digital data network 数字数据网★DDR Dial on demand routing 按需拨号路由★DOS Denial of service 拒绝服务★DAS Direct attached storage 直接存储模式★EDI Electronic data interchange 电子数据交换★Enterprise network 企业网★EN End node 端节点★ES-IS 端系统和中间系统★ECMA European computer manufacturers association ★EIA Electronic industries association 美国电子工业协会★ESI End system identifier ★ESS Extended service set 扩展服务集★EDLC Ethernet data link controller 以太网数据链路控制器★EGP Exterior gateway protocol 外部网关协议★EFS 加密文件系统★EAP Extensible authentication protocol 扩展授权协议★ESP 封装安全载荷★FTAM File transfer access and management ★FDM Frequency division multiplexing 频分多路复用★FDMA 频分多址★FSK 频移键控★FSM File system mounter 文件系统安装器★FECN 向前拥塞比特★FLP Fast link pulse 快速链路脉冲★FTP File transfer protocol 文件传输协议★FDDI Fiber distributed data interface 光纤分布数据接口★FHSS Frequency-Hopping spread spectrum 频率跳动扩展频谱★FTTH Fiber to the home 光纤到户★FTTC Fiber to the curb 光纤到楼群、光纤到路边★FAQ Frequently asked question 常见问题★FQDN Fully qualified domain name 主机域名全称★FPNW File and print service for netware ★FWA 固定无线接入★FD 光纤结点★FEC Fast Ethernet channel 快速以太网通道★GTT Global title translation 全局名称翻译★GFC General flow control ★GACP Gateway access control protocol ★GEA Gibabit Ethernet alliance 千兆以太网联盟★GEC Giga Ethernet channel 千兆以太网通道★GSMP General switch management protocol 通用交换机管理协议★GGP Gateway-to-gateway prtotcol 核心网关协议★GSM Global systems for mobile communications 移动通信全球系统★GCRA Generic cell rate algorithm 通用信元速率算法★GSNW Gateway service for netware Netware网关服务★GPO Group policy object 组策略对象★GBE Giga band ethernet 千兆以太网★GD Generic decryption 类属解密★GPL General public license 通用公共许可协议★GBIC 千兆位集成电路★Hamming 海明★HDLC High level data link control 高级数据链路控制协议★HEC Header error check 头部错误控制★HNS Host name server 主机名字服务★HTML Hyper text Markup language 超文本标记语言★HTTP Hyper text transfer protocol 超文本传输协议★HIPPI High performance parallel interface 高性能并行接口★HDTV High definition television 高清晰度电视★HDT 主数字终端★HFC Hybrid fiber coax 混合光纤/同轴电缆网★HAL Hardware abstraction layer 硬件抽象层★HCL 硬件认证程序★HDSL High-bit-rate DSL 高速率DSL ★HFC Hybrid fiber/coax network 混合光纤-同轴电缆★HE 视频前端★HSDPA 高速下行包数据接入★HSRP 热等待路由协议★★★IR 指令寄存器★ID 指令译码器★IS Instruction Stream 指令流★IS-IS 中间系统与中间系统★ICN 互联网络★IMP Interface Message Processor 接口信息处理机★ISP Internet service provider 因特网服务供应商★ICP Internet Content Provider 网络信息服务供应商★IPX Internet protocol eXchange ★ILD Injection laser diode 注入式激光二极管★IDP Internet datagram protocol ★ISUP ISDN user part ★IDC International code designator ★IDI Initial domain identifier ★ILMI Interim local management interface 本地管理临时接口★ISM Industrial scientific and medical ★IR ifrared 红外线★IRC Internet relay chat ★Infrastructure networking ★IFS Inter frame spqcing 帧间隔★IP Internet protocol 网络互连协议★IPSec Internet protocol Security Internet安全协议★ICMP Internet control message protocol 互联网络报文控制协议★IMAP Interim mail access protocol ★IGP Interior gateway protocol 内部网关协议★IFMP Ipsilon flowmanagement protocol 流管理协议★IDN Integrated digital network 综合数字网★IDU Interface data unit 接口数据单元★IMP Interface message processor 接口信息处理机★ITU International telecommunication union 国际电信联盟★ISO International standards organization 国际标准化组织★IEEE Institute of electrical and electronics engineers 电子电器工程师协会★IAB Internet activities board 因特网活动委员会★IAB Internet Architecture board Internet体系结构委员会★IRTF Internet research task force 因特网研究特别任务组★IPC Inter process communication 进程间通信★IXC Interexchange carrier 内部交换电信公司★IMTS Improved mobile telephone system 该进型移动电话系统★IGMP Internet group management protocol 因特网组管理协议★IDEA International data encryption Algorithm国际数据加密算法★IMAP Interactive mail access protocol 交互式电子邮件访问协议★IPRA Internet policy registration authority 因特网策略登记机构★ISP 因特网服务提供商★ICA 独立客户机结构★IPX/SPX 互联网分组交换/顺序分组交换★InterNIC Internet network information center ★ISM Internet service manager ★ISAP Internet information server 应用程序编程接口★IRC Internet relay chat 互联网中继交换★ISL Inter switch link 内部交换链路★IRP I/O请求分组★IIS Internet information server Internet信息服务器★ISU 综合业务单元★ISDN Integrated service digital network 综合业务数字网★IGRP Interior gateway routing protocol 内部网关路由协议★JPEG Joint photographic experts group 图像专家联合小组★KDC Key distribution center 密钥分发中心★LCD 液晶显示器★LIFO 后进先出★LED Light emitting diode 发光二极管★LEN Low-entry node 低级入口节点★LNP Local number portability 市话号码移植★LAP Link access procedure 链路访问过程★LAP-B Link access procedure-Balanced ★LAN Local area networks 局域网★LANE LAN emulated LAN 仿真标准★LEC LAN仿真客户机★LES LAN emulaion server LAN仿真服务器★LECS LAN仿真配置服务器★LLC Logic link control 逻辑链路控制★LC 迟到计数器★LCP Link control protocol 链路控制协议★LDAP Lightweight directory access protocol ★LSR 标记交换路由器★LER 标记边缘路由器★LDP 标记分发协议★LATA Local access and transport areas 本地访问和传输区域★LEC Local exchange carrier 本地交换电信公司★LIS Logical IP subnet 逻辑IP子网★LI Length indicator 长度指示★LDAP Light directory access protocol 轻型目录访问协议★LILO The Linux loader ★L2TP Layer2 tunneling protocol 第2层通道协议★LMI 本地管理接口★LPK/LDK Lapped public or double key 多重公钥/双钥★LMDS Local multipoint distribution services 本地多点分配业务★LSA Link state advertisement 链路状态通告★★★MAN Metropolitan area networks 城域网★MISD 多指令流单数据流★MIMD 多指令流多数据流★MIMO 多输入输出天线系统★MOTIS Message-oriented text interchange system ★MC Manchester Code 曼彻斯特骗码★Modulation and demodulation modem 调制解调器★MTP Message transfer part 报文传输部分★MAC Media access control 介质访问控制★MAC Message authentication code 报文认证代码★MAU Multi Access Unit 多访问部件★MAP Manufacturing automation protocol ★MSP Message send protocol 报文发送协议★MPLS Multi protocol label wsitching 多协议标记交换★MFJ Modified final judgement 最终判决★MTSO Mobile telephone switching office 移动电话交换站★MSC Mobile switching center 移动交换中心★MCS Master control station 主控站点★MCR Minimum cell rate 最小信元速率★MTU Maximum trasfer unit 最大传送单位★MID Multiplexing ID 多路复用标识★MIB Management information base 管理信息库★MIME Multipurpose internet mail extensions 多用途因特网邮件扩展★MPEG Moring picture experts group 移动图像专家组★MIDI Music instrument digital interface 乐器数字接口★MTU Maximum transfer unit 最大传输单元★MCSE Microsoft 认证系统工程师★MPR Multi protocol routing 多协议路由器★MIBS 管理信息数据库★MVL Multiple virtual line 多虚拟数字用户线★MPLS 多协议标记交换★MD5 Message digest 5 报文摘要5 ★MX Mail eXchanger 邮件服务器★MUD 多用户检测技术★MMDS Multichannel multipoint distribution system 多通道多点分配业务★★★NBS 美国国家标准局★NSF National Science Foundation 美国国家科学基金会★NII National Information Infrastructure 美国国家信息基础设施★NCFC 教育与科研示范网络★NN Network node 网络结点★NCP Netware core protocol Netware核心协议★NCP Network control protocol 网络控制协议★NAP Network access point 网络接入点★NDS Netware directory services Netware目录服务★NRZ Not return to zero 不归零码★Nyquist 尼奎斯特★NAK Negative acknowledgement 否定应答信号★NRM Normal response mode 正常响应方式★N-ISDN Narrowband integrated service digital network 窄带ISDN ★NLP Normal link pulse 正常链路脉冲★NAT Network address translators 网络地址翻译★NAPT Network address port translation 网络地址和端口翻译★NVT Network virtual terminal 网络虚拟终端★NCSA National center for supercomputing Applications ★NFS 美国国家科学基金会★NVP Network voice protocol 网络语音协议★NSP Name service protocol 名字服务协议★NIC Network information center 网络信心中心★NIC Network interface card 网卡★NOS Network operating system 网络操作系统★NDIS Network driver interface specification ★NREN National research and educational network 国家研究和教育网★NIST National instrtute of standards and technology 国际标准和技术协会★NNI Network network interface 网络-网络接口★NNTP Network news transfer protocol 网络新闻传输协议★NCSA National center for supercomputing applications 国家超级计算机应用中心★NTSC National television standards committee 美国电视标准委员会★NDIS Network drive interface specification 网络驱动程序接口规范★NETBIOS 网络基本输入输出系统★NETBEUI BetBIOS Extended user interface NETBIOS扩展用户界面★NBI Network binding interface 网络关联接口★NFS Network file system 网络文件系统★NIST 美国国家标准和技术协会★NCSC 国家计算机安全中心★NNTP Network news transfer protocol 网络新闻传输协议★NVOD Near video ondemand 影视点播业务★NIU 网络接口单元★NAS 网络接入服务★NAS Network attached storage 网络连接存储★OAM Operation and maintenance 操作和维护★OSI/RM Open system interconnection/Reference model 开放系统互联参考模型★OMAP Operations maintenance and administration part 运行、维护和管理部分★OAM Operation and maintenance ★OFDM Orthogonal frequency division multiplexing ★OSPF Open shortest path first 开放最短路径优先★OGSA Open Grid Services Architecture 开放式网格服务架构★ONU Optical network unit 光纤网络单元★OLE 对象链接和嵌入★ODI Open data link interface 开放数据链路接口★ODBC 开放数据库连接★OSA 开放的业务结构★PC 程序计数器★PEM 局部存储器★PTT Post telephone&telegraph ★PLP 分组级协议★PSK 相移键控★PCM Pulse code modulation 脉码调制技术★PAD Packet assembly and disassembly device 分组拆装设备★PCS 个人通信服务★PSE 分组交换机★PDN Public data network 公共数据网★PLP Packet layer protocol ★PVC Permanent virtual circuit 永久虚电路★PBX Private branch eXchange 专用小交换机★PMD Physical medium dependent sublayer 物理介质相关子层★PTI Payload type 负载类型★PAM 脉冲幅度调制★PPM 脉冲位置调制★PDM 脉宽度调制★PDA Personal digital assistant 个人数字助理★PAD Packet assembler-Disassembler 分组打包/解包★PDU Protocol data unit 协议数据单元★PLCP Physical layer convergence protocol 物理层会聚协议★PMD Physical medium dependent 物理介质相关子层★PCF Point coordination function 点协调功能★PPP Point to point protocol 点对点协议★PSTN Public switched telephone network 公共电话交换网★PSDN Packet Switched data network 公共分组数据网络★Packet switching node 分组交换节点★PAP Password authentication protocol 口令认证协议★PAM Pluggable authentication modules 可插入认证模块★POTS Plain old telephone service 老式电话服务★PCS Personal communications service 个人通信服务★PCN Personal communications network 个人通信网络★PCR Peak cell rate 峰值信元速率★POP Post office protocol 邮局协议★PGP Pretty good privacy 相当好的保密性★PCA Policy certification authorities 策略认证机构★PPTP Point to point Tunneling protocol 点对点隧道协议★POSIX 可移植性操作系统接口★PTR 相关的指针★PDH Plesiochronous digital hierarchy 准同步数字系列★PPPoE Point-to-point protocol over ethernet 基于局域网的点对点通信协议★PXC 数字交叉连接★PRI Primary rate interface 主要率速接口★QAM Quadrature amplitude modulation 正交副度调制★QOS Quality of service 服务质量★RTSE Reliable transfer service element 可靠传输服务元素★ROSE Remote operations service element 远程操作服务元素★RZ Return to zero 归零码★Repeater 中继器★RJE Remote job entry 远程作业★RARP Reverse address resolution protocol 反向ARP协议★RPC Remote procedure call 远程过程调用★RFC Request for comments 请求评注★RAID Redundant array of inexpensive disks 廉价磁盘冗余阵列★RADIUS 远端验证拨入用户服务★RAS Remote access services 远程访问服务★RISC Reduced instruction set computer 最简指令系统★RIP Routing information protocol 路由信息协议★RRAS 路由与远程访问服务★RDP 远程桌面协议★RADSL 速率自适应用户数字线★RAN 无线接入网★RAS Remote access server 远程访问服务器★RSVP Resource ReSerVation Protocol 资源预约协议★SISD 单指令单流数据流★SIMD 单指令多流数据流★SP 堆栈指针寄存器★SNA System Network Architecture 系统网络体系结构★SNA/DS SNA Distribution service 异步分布处理系统★SAP Service access point 服务访问点★SAP Service advertising protocol 服务公告协议★SPX Sequential packet eXchange ★SNIC 子网无关的会聚功能★SNDC 子网相关的会聚功能★SNAC 子网访问功能★SNACP Subnetwork access ptotocol 子网访问协议★SNDCP SubNetwork dependent convergence protocol 子网相关的会聚协议★SNICP SubNetwork independent convergence protocol 子网无关的会聚协议★STP Shielded twisted pair 屏蔽双绞线★STP Signal transfer point 信令传输点★STP Spanning Tree Protocol 生成树协议★SONET Synchronous optical network ★SDH Synchronous digital hierarchy 同步数字系列★SS7 Signaling system No.7 ★SSP Service switching point 业务交换点★SCP Service control point 业务控制点★SCCP Signaling connection control part 信令连接控制部分★SDLC Synchronous data link control 同步数据链路控制协议★SIM 初始化方式命令★SVC Switched virtual call 交换虚电路★STM Synchronous transfer mode 同步传输模式★SAR Segmentation and reassembly 分段和重装配★SMTP Simple mail transfer protocol 简单邮件传送协议★SFTP Simple file transfer protocol ★SNMP Simple network management 简单网络管理协议★SNPP Simple network paging protocol ★SCSI 小型计算机系统接口★SLIP Serial line IP 串行IP协议★SMB Server message block 服务器报文快协议★SRT Source routing transparent 源路径透明★SDU Service data unit 服务数据单元★SMDS Switched multimegabit data service 交换式多兆比特数据服务★SAR Segmentation and reassembly 分解和重组★SONET Synchronous optical network 同步光纤网络★SDH Synchronous digital hierarchy 同步数字分级结构★STS-1 Synchronous transport signal-1 同步传输信号★SPE Synchronous payload envelope 同步净荷包★SIPP Simple internet protocol plus 增强的简单因特网协议★SCR Sustained cell rate 持继信元速率★SECBR Severly-errored cell block ratio 严重错误信元块比率★SEAL Simple efficient adaptation layer 简单有效的适配层★SSCOP Service specific connection oriented protocol 特定服务的面向连接协议★SHA Secure hash algorithm 保密散列算法★SMI Structer of management information 管理信息的结构★SGML Standard generalized markup language 标准通用标记语言★SBS Server based setup ★SAM Security account manager 安全帐号管理器★SPS Standby power supplies 后备电源★SPK Seeded public-Key 种子化公钥★SDK Seeded double key 种子化双钥★SLED Single large expensive drive ★SID 安全识别符★SDSL Symmetric DSL 对称DSL ★SAT 安全访问令牌★SMS System management server 系统管理服务器★SSL 安全套接字层★SQL 结构化查询语言★STB Set top box 电视机顶盒★SIPP Simple internet protocol plus ★SGML Standark generalized markup language 交换格式标准语言★SN 业务接点接口★SNI Service node interface 业务接点接口★SOHO 小型办公室★SIP Session initiation protocol 会话发起协议★SCS Structured cabling system 结构化综合布线系统★SMFs System management functions 系统管理功能★SMI Structure of management information 管理信息结构★SGMP Simple gateway monitoring protocol 简单网关监控协议★SFT System fault tolerance 系统容错技术★SAN Storage Area Network 存储区域网络★TCP Transmission control protocol 传输控制协议★TTY 电传打字机★TDM Time division multiplexing 时分多路复用★TDMA 时分多址★TCM Trellis coded modulation 格码调制★TCAP Transaction capabilities applications part 事务处理能力应用部分★TE1 1型终端设备★TE2 2型终端设备★TA 终端适配器★TC Transmission convergence 传输聚合子层★TRT 令牌轮转计时器★THT 令牌保持计时器★TFTP Trivial file transfer protocol 小型文件传输协议★TDI Transport driver interface 传输驱动程序接口★TIP Terminal interface processor 终端接口处理机★TPDU Transport protocol unit 传输协议数据单元★TSAP Transport service access point 传输服务访问点★TTL Time to live 使用的时间长短期★TLS 运输层安全★TAPI Telephone application programming interface 电话应用程序接口★TTB Trusted tomputing base 可信计算基★TCSEC Trusted computer system evaluation criteria 可信任计算机系统评量基准★TMN Telecommunications management network 电信管理网★TDD 低码片速率★TIA 美国电信工业协会★UTP Unshielede twisted pair 无屏蔽双绞电缆★UTP Telephone user part 电话用户部分★UDP User datagram protocol 用户数据报协议★UA 无编号应答帧★UI 无编号信息帧★UNI User-network interface 用户网络接口★UBR Unspecified bit rate 不定比特率★U-NII Unlicensed national information infrastructure ★URL Uniform resource locator 通用资源访问地址★统一资源定位器★URI Universal resource identifiers 全球资源标识符★UNC Universal naming convention 通用名称转换★UPS Uninterruptible power supplies 不间断电源★UDF Uniqueness database file 独一无二的数据库文件★UE 终端★USM User security mode 用户的安全模型★VT Virtual terminal 虚拟终端★VC Virtual circuit 虚电路★VSAT Very small aperture terminal 甚小孔径终端系统★Virtual path 虚通路★Virtual channel 虚信道★VPI Virtual path identifiers 虚通路标识符★VCI Virtual channe identifiers 虚信道标识符★VBR Variable bit rate 变化比特率★VLSM Valiable length subnetwork mask 可变长子网掩码★VOD Video on demand 视频点播★VLL 虚拟租用线路★VPRN 虚拟专用路由网络★VPDN 虚拟专用拨号网络★VPLS 虚拟专用LAN片断★VPN Virtual private network 虚拟私用网络★VSM 话音服务模块★VTP VLAN Trunking Protocol VLAN中继协议★WDM Wave division multiplexing 波分多路复用★WLAN Wireless local area networks 无线局域网★WWW World wide web 环球网、万维网★WAIS Wide area information server 广域信息服务器★WINS Windows internet name service Windows网间网命名系统★WTS Iwndows终端服务器★WSH Windows scripting Host ★WML Wireless markup language 无线标记语言★WCDMA Wideband code division multiple access 宽带码分多址★XID 交换标识★X.500 用于目录管理方面最常见的协议★XNS 施乐网络服务系统★XML Exbensible markup languge 可延伸的标识语言★ZAW 零管理窗口错误!未找到引用源。

摘要扩频通信作为一种新型的通信体制，具有很多独特的优点，在军用和民用领域中都得到了广泛的应用。

扩频通信中一个关键性的问题就是扩频信号的同步，包括捕获和跟踪两个步骤，同步性能的优劣直接影响到整个扩频通信系统的性能。

因此，对直扩系统同步的研究具有很大的实用价值。

本文深入研究了扩频通信中直接扩频系统的同步技术，包括伪随机(PN)序列的捕获、跟踪和载波同步。

在伪随机(PN)序列的捕获中研究了串并结合的大步进方法。

研究了伪码串行-载波并行、伪码并行-载波串行、伪码串行-载波并行、伪码并行-载波并行4种捕获方法。

在特定的参数下，设计出直扩通信系统，并在高斯信道条件下，仿真得出了直扩系统的误码率性能曲线，在此基础上运用了伪码并行-载波串行的方法进行仿真分析，从MATLAB仿真结果可以看出捕获方案确实可行。

关键词：扩频通信；同步；捕获；跟踪AbstractAs a new type of communications system,spread spectrum communications has many unique advantages, and has been widely used in both military and civilian fields. The synchronization of spread specturn signal, including acquisition and tracking, is the key problem of spread specturn communication. The performance of synchronizing has direct impact on the whole spread spectrun communication system. As a result, it’s very important to discuss this problem.This paper researches into synchronization techniques of direct-sequence spread spectrum systems, which include PN code acquisition, PN code tracking and carrier recovery. we studied PN acquisition scheme, large step acquision scheme. This paper discusses four capture methods about serial PN code, serial carrier, parallel PN code, serial carrier, serial PN code, parallel carrier, and parallel PN code, parallel carrier. Incertain parameters, design of direct sequence spread spectrum communication system, and in the Gauss channel conditions, simulation of the curve of the BER performance of DSSS system, on the basis of using the parallel PN code, carrier serial simulation, simulation results can be seen from the MATLAB capture scheme is feasible.Keywords: S pread Spectrum Communications; Synchronization; Acquisition; Tracking目录1 绪论 (1)2直接序列扩频通信的理论基础 (4)2.1扩频通信的理论基础 (4)2.1.1基本理论 (4)2.1.2扩频通信的特点 (5)2.2直接序列扩频通信系统 (6)2.3伪随机序列 (9)2.3.1m序列 (10)3 直接序列扩频系统的同步 (12)3.1同步机理 (12)3.2信号捕获 (12)3.3 信号跟踪 (17)3.3.1 载波跟踪技术 (17)3.3.2 锁相环原理 (18)3.3.3 锁频环原理 (20)3.3.4 锁相环与锁频环的性能比较 (21)4直扩系统的仿真分析 (23)4.1设计参数 (23)4.2 直扩通信系统的原理框图 (23)4.3直扩通信系统的仿真分析 (24)4.4 直扩系统的抗干扰性能分析 (30)5 同步仿真分析 (31)5.1同步参数设计 (31)5.2 PN码的自相关性仿真 (31)5.3 捕获 (32)5.4 跟踪 (36)结论 (39)致谢 (40)参考文献 (41)附录A 英文原文 (43)附录B 中文翻译 (55)附录C 程序 (64)1 绪 论扩频通信是建立在ClaudeE.Shannon 信息论基础之上的一种新型现代通信体制。

通信工程专业英语词汇来源：涛的日志动态围: Dynamic range频率偏值: Frequency offset符号率： Symbol rate码域功率： code domain power频分多址: Frequency Division Multiple Access码分多址: Code Division Multiple Access时分多址: Time Division Multiple Access沃什码： Walsh code误码率： Bit Error Rate，BER帧误码率： Frame Error Rate，FER循环冗余码：Cyclic Redundancy Code，CRC时序分析： timing analyze门限： threshold非同步模式： Asynchronous Mode同步模式： Synchronous Mode邻道功率：ACP D―― Adjacent Channel Power先进移动业务：AMPS---Advanced Mobile Phone Service组织协会：ANSI --- American National Standard Institute 美国国家标准局BPT --- British Post and Telecommunication Standard 英国邮政与电信标准CCIR --- International Radio Consultative Committee 国际无线电咨询委员会CCITT --- International Telegraph and Telephone Consultative Committee国际/电报咨询委员会CEPT --- Conference of European Post and Telecommunication Administrations欧洲邮电行政会议EIA --- Electronic Engineers Association 电子工业协会美ETSI --- European Telecommunication Standards Institute欧洲电信标准委员会FCC --- Federal Communications Commission联邦通信委员会美IEC --- International Electrotechnics Committee国际电工委员会IEE --- Institution of Electrical Engineers电气工程师协会英IEEE--- Institution of Electrical and Electronics Engineers, INC电气与电子工程师协会美ITU --- International Telecommunication Union 国际电信联盟联合国MPT --- Ministry of Post and telecommunications邮政与电信部英TIA --- Telecommunications Industries Association电信工业协会美WARC --- World Administrative Radio Conference世界无线电行政大会ZVEI --- Zentralverband der Electechnischen Industrie电气工业中央协会德ACP --- Adjacent Channel Power邻道功率AMPS --- Advanced Mobile Phone Institute先进移动业务APOC --- Advanced Paging Operator Code先进寻呼操作码AVL --- Average Voice Level平均话音电平BSC --- Base Site Controller基站控制器CDMA --- Code Division Mulitiple Code码分多址CDPD --- Cellular Digital Packet Data蜂窝分组数据系统CSC --- Cell Site Controllor小区控制器DCCH --- Digital Control Channel数字控制信道DECT --- Digital Enhanced Cordless Telecommunications数字增强无绳EDACS --- Enhanced Digital Access Communications System加强的数字接入通信系统ERMES --- European Telecommunications Standards Institute欧洲无线电信息系统ESN --- Electronics Serial Number电子串号FDR --- Frequency Domain Reflectometry频域反射计FLEX --- Flexible Paging System可变速寻呼系统FOCC --- Forward Control Channel前向控制信道FVC --- Forward Voice Channel前向话音信道GSC --- Golay Sequential Coding格雷码GSM --- Global System for Mobile Communications全球移动通信系统IBASIC --- Instrument BASIC仪器BASIC语言IDC --- Instantaneous Deviation Control瞬时频偏控制IMSI --- International Mobile Station Identify国际移动台识别LNA --- Low Noise Amplifier低噪声放大器LPF/HPF --- Low/High Pass Filter低通/高通滤波器LSB/USB --- Lower/Upper Side Band下/上边带MCC --- Mobile Country Code移动业务国家MCS --- Mobile Control Station移动控制站MIN --- Mobile Identification Number移动识别码MNC --- Mobile Network Code移动网MSC ---Mobile Switching Center移动交换中心MSIN --- Mobile Station Identification Number移动台识别码MTSO --- Mobile Telephone Switching Office移动交换局NMSI --- National Mobile Station Identify国移动台识别NMT --- Nordic Mobile Telephone北欧移动系统OTP --- One Time Programmable一次性编程PDC --- Personal Digital Cellular个人数字蜂窝系统PHS --- Personal Handy-Phone System个人手持系统PSTN --- Public Switching Telephone Network公用交换网RECC --- Reverse Control Channel反向控制信道RVC --- Reverse Voice Channel反向话音信道RSSI --- Receiced Signal Strength Indicator接收信号场强指示SCC --- Signalling Channel Controller信令信道控制器SCM --- Station Class Mark移动台级别标志SID --- Syste Indentification Number系统识别号TACS --- Total Access Communications System全选址通信系统TDMA --- Time Division Multiple Access时分多址UUT --- Under Unit Test被测单元VCC --- Voice Channel Controller话音信道控制器VSWR --- Voltages Standing Wave Ratio电压驻波比1997年，爱立信公司向ETSI（欧洲电信标准委员会）提出了EDGE的可行性研究方案，并在同年得到认可。

U n i t1E x e r c i s e s(1)T r a n s l a t e t h e f o l l o w i n g s e n t e n c e s i n t o C h i n e s e.1.As with series resonance, the greater the resistance in thecircuit the lower the Q and, accordingly, the flatter andbroader the resonance curve of either line current or circuitimpedance.对于串联谐振，电路中的电阻愈大Q值就愈低，相应地线路电流或电路阻抗的谐振曲线也就愈平、愈宽。

2.A wire carrying a current looks exactly the same and weighsexactly the same as it does when it is not carrying a current.一根带电的导线其外表与重量都与不带电导线完全一样。

3.Click mouse on the waveform and drag it to change the pulserepetition rate, or directly enter a new value of the period inthe provided dialogue box, while keeping the pulse widthunchanged.在波形上点击鼠标并拖动来改变脉冲重复频率，或者在提供的对话框中直接输入新的期值，而保持脉冲宽度不变。

4.Electronics is the science and the technology of the passage of charged particles in a gas, in a vacuum, or in a semiconductor. Please note that particle motion confined within a metal only is not considered electronics.电子学是一门有关带电粒子在气体、真空或半导体中运动的科学技术。

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通信工程专业英语词汇 2007-10-20 10:55 动态范围: Dynamic range 频率偏值: Frequency offset 符号率: Symbol rate 码域功率: code domain power 频分多址: Frequency Division Multiple Access 码分多址: Code Division Multiple Access 时分多址: Time Division Multiple Access 沃什码: Walsh code 误码率: Bit Error Rate,BER 帧误码率: Frame Error Rate,FER 循环冗余码:Cyclic Redundancy Code,CRC 时序分析: timing analyze 门限: threshold 非同步模式: Asynchronous Mode 同步模式: Synchronous Mode 邻道功率: ACP D―― Adjacent Channel Power 先进移动电话业务:AMPSAdvanced Mobile Phone Service 组织协会: ANSI American National Standard Institute 美国国家标准局BPT British Post and Telecommunication Standard 英国邮政与电信标准CCIR International Radio Consultative Committee 国际无线电咨询委员会CCITT International Telegraph and Telephone ConsultativeCommittee 国际/电报咨询委员会CEPT Conference of European Post and Telecommunication Administrations 欧洲邮电行政会议EIA Electronic Engineers Association 电子工业协会美 ETSI European Telecommunication Standards Institute 欧洲电信标准委员会 FCC Federal Communications Commission 联邦通信委员会美 IEC International Electrotechnics Committee 国际电工委员会IEE Institution of Electrical Engineers 电气工程师协会英IEEE Institution of Electrical and Electronics Engineers, INC 电气与电子工程师协会美ITU International Telecommunication Union 国际电信联盟联合国MPT Ministry of Post and telecommunications 邮政与电信部英 TIA Telecommuni cations Industries Association 电信工业协会美 WARC World Administrative Radio Conference 世界无线电行政大会 ZVEI Zentralverband der Electechnischen Industrie 电气工业中央协会德 ACP Adjacent Channel Power 邻道功率 AMPS Advanced Mobile Phone Institute 先进移动电话业务 APOC Advanced Paging Operator Code 先进寻呼操作码 AVL Average Voice Level 平均话音电平BSC Base Site Controller 基站控制器 CDMA Code Division Mulitiple Code 码分多址 CDPD Cellular Digital Packet Data 蜂窝分组数据系统CSC Cell Site Controllor 小区控制器 DCCH Digital Control Channel 数字控制信道DECT Digital Enhanced Cordless Telecommunications 数字增强无绳电话 EDACS Enhanced Digital Access Communications System 加强的数字接入通信系统ERMES European Telecommunications Standards Institute 欧洲无线电信息系统 ESN Electronics Serial Number 电子串号 FDR Frequency Domain Reflectometry 频域反射计 FLEX Flexible Paging System 可变速寻呼系统 FOCC Forward Control Channel 前向控制信道 FVC Forward Voice Channel 前向话音信道 GSC Golay Sequential Coding 格雷码 GSM Global System for Mobile Communications 全球移动通信系统 IBASIC Instrument BASIC 仪器 BASIC 语言IDC Instantaneous Deviation Control 瞬时频偏控制 IMSI International Mobile Station Identify 国际移动台识别号码 LNA Low Noise Amplifier 低噪声放大器 LPF/HPF Low/High Pass Filter 低通/高通滤波器 LSB/USB Lower/Upper Side Band 下/上边带 MCC Mobile Country Code 移动业务国家号码 MCS Mobile Control Station 移动控制站 MIN Mobile Identification Number 移动识别码MNC Mobile Network Code 移动电话网号码 MSC Mobile Switching Center 移动交换中心 MSIN Mobile Station Identification Number 移动台识别码 MTSO Mobile Telephone Switching Office 移动电话交换局 NMSI National Mobile Station Identify 国内移动台识别号码 NMT Nordic Mobile Telephone 北欧移动电话系统 OTP One Time Programmable 一次性编程 PDC Personal Digital Cellular 个人数字蜂窝系统 PHS Personal Handy-Phone System 个人手持电话系统 PSTN Public Switching Telephone Network 公用交换电话网RECC Reverse Control Channel 反向控制信道 RVC Reverse Voice Channel 反向话音信道RSSI Receiced Signal Strength Indicator 接收信号场强指示 SCC Signalling Channel Controller 信令信道控制器SCM Station Class Mark 移动台级别标志SID Syste Indentification Number 系统识别号 TACS Total Access Communications System 全选址通信系统 TDMA Time Division Multiple Access 时分多址 UUT Under Unit Test 被测单元VCC Voice Channel Controller 话音信道控制器 VSWR Voltages Standing Wave Ratio 电压驻波比 1997 年,爱立信公司向 ETSI(欧洲电信标准委员会)提出了 EDGE 的可行性研究方案,并在同年得到认可.EDGE(Enhanced Data Rates for GSM)的全称为 GSM 演进增强型数据速率,是一种标准的空中接口.它在空中接口上增加了一种新的调制方式——8PSK. 系统可根据无线链路传输质量选择 GMSK 或 8PSK GSM两种调制方式.由于 8PSK 调制是线性调制,其每个符号传送 3 比特信息,从而使数据传输速率提高 3倍.在现有的 GSM 系统中引入了 EDGE 后,就可以支持速率高达 384 kbit/s(单时隙为69.2 kbit/s)的数据业务, 并且能够向上支持 EGPRS, ECSD等业务的需求. TACS TACS 的英文全称是 Total Access Communications System,它是一种全入网通信系统技术.该技术按照英国标准而设计的模拟式移动电话系统,其频率范围为 900MHz. PCS PCS 是 Personal Communications Service 的缩写,意思是"个人通讯服务".这是美国联邦通讯委员会(FCC)使用的一个术语,专指正在美国部署的一套数字蜂窝技术. 包括 CDMA(也称作IS-95), 和主要用于北美的 TDMA(也 PCS GSM 叫 IS-136).PCS 的频率为 1900MHz. DAMPS DAMPS 的全称是 Digital AMPS,其中 AMPS 是一种高级移动电话服务技术, 该技术为模拟蜂窝系统,使用 800MHz 频谱,在美国占主导地位.相对应地, Digital AMPS 代表的是数字化高级移动电话系统.这种数字网络解决方案基于美国的 IS-136 数字标准.在 900～1800MHz 频谱内执行. CMTS CMTS 代表的是 Cellular Mobile Telephone System,中文含义是-蜂窝移动电话系统.该系统内的每一个地区都由一个基站覆盖.一个地区称为一个信元. 信元内的每部电话机都通过基站实现通信.如果该部电话机进入另一个信元,呼叫就自动转移至新信元内的基站. Cellular Cellular 的中文含义是"蜂窝(技术)",它是一种无线通信技术.这种技术把一个地理区域分成若干个小区,称作"蜂窝"(即 Cell),蜂窝技术因此而得名.手机(或移动电话)均采用这项技术,因此常常被称作蜂窝电话(Cellular Phone).将一个大的地理区域分割成多个"蜂窝"的目的,是充分利用有限的无线传输频率.每一组连接(对于无线电话而言就是每一组会话)都需要专门的频率,而可以使用的频率一共只有大约 1000 个.为了使更多的会话能同时进行, 蜂窝系统把给每一个"蜂窝"(即每一个小的区域)分配了一定数额的频率. 不同的蜂窝可以使用相同的频率,这样,有限的无线资源就可以充分利用了.常见的蜂窝系统包括 GSM 和 CDMA,它们都属于第二代通信技术.(中国电信)CDPD CDPD(Cellular digital packet data),即蜂窝数字式分组数据交换网络, 被人们称作真正的无线互联网.— CDPD 网是以数字分组数据技术为基础,以蜂窝移动通信为组网方式的移动无线数据通信网.使用 CDPD 只需在便携机上连接一个专用的无线调制解调器, 即使坐在时速 100 公里的车厢内, 也不影响上网. CDPD 拥有一张专用的无线数据网,信号不易受干扰,可以上任何网站.与其它无线上网方式相比,CDPD 网可达 19.2 千比特/秒,而普通的 GSM 移动网络为 9.6 千比特/秒.在数据通信安全方面,CDPD 在授权用户登录上配置了多种功能,如设定允许用户登录范围,统计使用者登录次数;对某个安全区域,某个安全用户特别定义,进一步提高特别用户的安全性;采用 40 位密钥的加密算法,正反信道各不相同, 自动核对旧密钥更换新密钥, 数据即使被人窃得, 也无法破解. CDPD 使用中还有诸多特点:安装简便,使用者无需申请电话线或其它线路;通信接通反应快捷,如在商业刷卡中,用MODEM 接通时间要 20-45 秒,而 CDPD 只要 1 秒; 终端系统分移动,固定两种,能实现本地及异地漫游.CDPD 可以支持移动上网, 远程遥测,车辆调度,银行提款,无线炒股,现场服务,商业 POS 系统等等.目前本市已有不少行业使用了这一业务.() GPRS GPRS 是"通用分组无线业务"英文的缩写,它是在现有的 GSM 网络基础上叠加了一个新的网络,它充分利用了现有移动通信网的设备,在 GSM 网路上增加一些硬件设备和软件升级,形成一个新的网络逻辑实体,它以分组交换技术为基础, 采用 IP 数据网络协议, 使现有 GSM 网的数据业务突破了最高速率为 9.6kbit /s 的限制,最高数据速率可达 170kbit/s,这样高的数据速率,对于绝大多数移动用户来说,已经是绰绰有余.用户通过 GPRS 可以在移动状态下使用各种高速数据业务,包括收发电子邮件,因特网浏览等 IP 业务功能. GPRS 的优点GPRS 采用分组交换技术,与现有 GSM 的电路交换技术比较,每个用户可以有多个无线信道可用,而同一无线信道又可以由多个用户共享.它采用了"统计复用"或"动态复用"的技术.所谓"动态复用",就是用户只在实际发送数据时才使用频率资源,这与 GSM 网电路交换方式的"静态复用"不同,所谓"静态复用",是不管用户是否正在发送数据,都占用着一个信道.因此使系统的总容量减少,浪费了带宽资源的利用."动态复用"可以使一个小区的所有移动用户共享同一资源,从而大大提高了带宽资源的利用率.GPRS 不仅仅是对发送数据的移动用户实施了"动态复用",而且还不影响 GSM 网络资源的使用.目前移动通信的业务中电话业务还是主要的, 增加了数据业务是否会影响电话业务?GPRS 在移动电话业务繁忙时, 可以把数据信道供给移动电话使用. 在电话业务很忙时, 将使数据传送延时, 虽然延长了数据分组传送的时间, 但不影响正常的电话业务. 同时,由于 GPRS 是分组交换技术,应用了统计复用技术,因此 GPRS 开通的数据通信,是按发送数据的量计费,而不是按发送的时间长短计费,所以对用户来说还可以节省费用.通信专业常用英语单词缩写及全称( 通信专业常用英语单词缩写及全称(在考研论坛上发现的 /)(2006-11-29 15:42:34) 分类:专业术语通信专业常用英语单词缩写及全称[按首字排序] 通信专业常用英语单词缩写及全称[按首字排序] ADM Add Drop Multiplexer 分插复用器: AON Active Optical Network 有源光网络: APON ATM Passive Optical Network ATM 无源光网络: ADSL Asymmetric Digital Subscriber Line 非对称数字用户线: AA Adaptive Antenna 自适应天线: ADPCM Adaptive Differential Pulse Code Modulation 自适应脉冲编码调制: ADFE Automatic Decree Feedback Equalizer 自适应判决反馈均衡器: AMI Alternate Mark Inversion 信号交替反转码: AON All Optical Net 全光网 AOWC All Optical Wave Converter 全光波长转换器: ASK Amplitude Shift Keying 振幅键控: ATPC Automatic Transfer Power Control 自动发信功率控制: AWF All Wave Fiber 全波光纤: AU Administrative Unit 管理单元: AUG Administrative Unit Group 管理单元组: APD Avalanche Diode 雪崩光电二极管 :BA Booster(power) Amplifier 光功率放大器: BBER Background Block Error Ratio 背景误块比: BR Basic Rate Access 基本速率接入: Bluetooth 蓝牙: C Band C 波带: Chirp 啁啾: C Container C 容器: CSMA/CD Carrier Sense Multiple Access with Collision Detection 载波侦听多址接入/碰撞检测协议: CSMA/CA Carrier Sense Multiple Access with Collision Avoidance 载波侦听多址接入/避免冲撞协议: CNR Carrier to Noise Ratio 载噪比: CP Cross polarization 交叉极化: DCF Dispersion Compensating Fiber 色散补偿单模光纤 DFF Dispersion-flattened Fiber 色散平坦光纤: DR Diversity Receiver 分集接收 DPT Dynamic Packet Transport 动态包传输技术: ODM Optical Division ltiplexer 光分用器: DSF Dispersion-Shifted Fiber 色散移位光纤:DTM Dynamic Synchronous Transfer Mode 动态同步传送模式: DWDM Dense WavelengthDivision Multiplexing 密集波分复用: DLC Digital loop carrier 数字环路载波 : DXC Digital cross connect equipment 数字交叉连接器: EA Electricity Absorb Modulation 电吸收调制器: EB Error Block 误块: ECC Embedded Control Channel 嵌入控制通路: EDFA Erbium-doped Fiber Amplifier 掺铒光纤放大器 EDFL Erbium-doped Fiber Laser 掺铒光纤激光器: ES Errored Second 误块秒: ESR Errored Second Ratio 误块秒比: FEC Forward Error Correction 前向纠错: FWM Four-wave Mixing 四波混频: FDMA Frequency Division Multiple Access 频分多址: FTTB Fiber to the Building 光纤到大楼: FTTC Fiber to the Curb 光纤到路边 FTTH Fiber to the Home 光纤到户: FA Frequency agility 频率捷变: CSMF Common Single Mode Fiber 单模光纤:DSF Dispersion-Shifted Fiber 色散位移光纤: GE Gigabit Ethernet 千兆以太网技术: GIF Graded Index Fiber 渐变型多模光纤: GS-EDFA Gain Shifted Erbium-doped Fiber Amplifier 增益平移掺饵光纤放大器: GVD Group Velocity Dispersion 群速度色散: HPF High Pass Filter 高通滤波器: HRDS Hypothetical Reference Digital Section 假设参考数字段: IDLC Integrated DLC 综合数字环路载波: IDEN Integrated Digital Enhanced Networks 数字集群调度专网: IEEE 802.3: CSMA/CD 局域网,即以太网标准. IEEE 802.11 无线局域网标准: Jitter 抖动 : K Band K 波段: Ku Band Ku 波段: 12G-14G,用于多卫星通信 LA Line Amplifier 光线路放大器: LEAF Large Effective Area Fiber 大有效面积光: LANE LAN Emulation 局域网仿真:LMDS Local Multipoint Distribution Service 本地多点分配业务: LOF Loss of Frame 帧丢失: LOS Loss of Signal 光信号丢失: LOP Loss of Pointer 指针丢失: MI Modulation Instability 调制不稳定性: MLCM Multi-Level Coded Modulation 多电平编码调制: MMF Multi Mode Fiber 多模光纤: MMDS Multichannel Multipoint Distribution Service 多信道多点分配业务: MVDS Multipoint Video Distribution Service 多点视频分配业务: MQAM Quadrature Amplitude Modulation 多进制正交幅度调制: MSOH Multiplex Section Overhead 复用段开销: MSP Multiplexer Section Protection 复用段保护: MZ Mach-Zehnder 马赫曾德尔调制器: NA Numerical Aperture 数值孔径 : NC Network Connection 网络连接: NEL Network Element Layer 网元层: NML Network Management Layer 网络管理层: NE Network Element 网络单元: NZDSF Non Zero Dispersion Shifted Fiber 非零色散位移光纤:NNI Network Node Interface 网络节点接口: OADM Optical Add Drop Multiplexe 光波分插复用器: OA&M Operations , Administration and Maintenance 操作,管理和维护: OFA Optical Fiber Amplifier 光纤放大器: OAN Optical Access Network 光接入网: OBD Optical Branching Device 光分路器: OLT Optical Line Terminal 光线路终端: ONU Optical Network Unit 光网络单元: OFS Out of Frame Second 帧失步秒: OM Optical Multiplex 光复用: OMSP Optical Multiplex Section Protect 光复用段保护 OOF Out of Frame 帧失步: OSC Optical Supervisory Channel 监控信道: O-SNCP Optical Subnetwork Connection Protection 光子网连接保护: OSNR Optical Signal to Noise Ratio 光信噪比 OTDM Optical Time Division Multiplexing 光时分复用: OTDR Optical Time Domain Reflectmeter 光时域反射器: OTN Optical Transmission Net 光传送网:OMN Optical Transport Network 光传送网管理网: OTU Optical Transform Unit 光转化单元: OXC Optical Cross Connect 光交叉连接: PA Pre Amplifier 光前置放大器: PMR Private Mobile Radio 专用集群移动通信网: PON Passive O ptical Network 无源光网络: PAMR Public Access Mobile Radio 共用调度集群移动通信网: Paylo ad 净负荷: PCM Pulse Code Modulation 脉码调制: PDH Plesi ochr onous Digital Hierarchy 准同步数字体系: PJE Pointer Justification Count 指针调整事件: PMD Polarisation Mode Dispersion 偏振模色散: POH Path Overhead 通道开销: PON Passive Optical Network 无源光网络: PRC Primary Resource Clock: QOS Quality of Service 服务质量: Raman Effect 喇曼效应: REG Regenerator 再生器: RSOH Regenerator Section Overhead 再生段开销:RTS/CTS Request to Send/ Clear to Send 请求发送/允许发送协议: 3R Regenration ,Reshaping ,Retiming 再生,重整形和重定时: SBS Stimulated Brillouin Scattering 受激布里渊散射: SCP Service Control Point 业务控制点: SD Signal Degrade 信号劣化: SDH Synchronous Digital Hierarchy 同步数字传输体系: SHR Self-healing Hybrid Ring SDH 自愈环: SDM Space Division Multiplex 空分复用: SDXC Synchronous Digital Cross Connector 同步数字交叉连接器: SES Severely Errored Second 严重误块秒: SESR Severely Errored Second 严重误块秒比: SIF Step Index Fiber 突变型多模光纤: SMF Single Mode Fibre 单模光纤: SMN SDH Management Network 同步数字体系管理网: SMS SDH Management Subnetwork SDH 管理子网: Soliton 光孤子: STM Synchronous transfer mode 同步传送模块: SNC Subnetwork Connection 子网连接:SNI Service Network Interface 业务节点接口: SOH Section Overhead 段开销: SONET Synchronous Optical Network 同步光网络: SPM Self-healing Network 自相位调制: SRP S pace Recycle Protocol 空间再利用协议: SRS Simulated Raman Scattering 受激喇曼散射: SPM Self-phase Modulation 自相位调制: TCM Trellis Coded Modulation 网格编码调制: TDM Time Division Multiplexing 时分复用: TM Terminal Multiplexing 终端复用器: TWF True Wave Fiber 真波光纤: TU Tributary Unit 支路单元: TUG Tributary Unit Group 支路单元组: VC Virtual Container 虚容器: Wander 漂动: WDM Wavelength Division Multiplexing 波分复用: WLL Wireless Local Loop 无线本地环路: WRS Wavelength Router Switch 波长选路开关: WXC Wavelength Cross Connect 波长交叉连接:XPIC Cross-polarisation Interference counteracter 交叉极化干扰抵消器: XPM Cross-phase Modulation 交叉相位调制:1。

缩写英文全称中文全称1x EV-DO1x Evolution-Data Optimized1x数据业务优化演进1x EV-DV1x Evolution-Data&Voice1x数据和语音演进3GPP3rd Generation Partnership Project第三代移动通信伙伴计划3GPP23rd Generation Partnership Project 2第三代移动通信伙伴计划25G the Fifth Generation第五代移动通信技术5G-PPP the 5G Infrastructure Public PrivatePartnership5G公私合资合作研发机构AAA Authentication Authorization and Accounting鉴权、认证和计费ACELP Algebraic Code Excited Linear Prediction Coder代数码激励线性预测编码AFH Adaptive Frequency-Hopping适配跳频AICH Acquisition Indication Channel捕获指示信道ALCAP Access Link Control Application Part接入链路控制应用部分AM Amplitude Modulation幅度调制AM Acknowledged Mode确认应答模式AMBR Aggregate Maximum Bit Rate总最大位速率AMR Adaptive Multi-Rate自适应多速率编码AN Access Network接入网络ANR Automatic Neighbour Relation function自动邻区关系优化APN Access Point Name接入点名称AQM Active Queue Management主动队列管理ARIB Association of Radio Industries andBusinesses无线工业及商贸联合会ARQ Automatic Repeat reQuest自动重发请求ASK Amplitude Shift Keying幅移键控AT Access Terminal接入终端ATCF Access Transfer Control Function访问传输控制功能ATGW Access Transfer Gateway访问传输网关ATM Asynchronous Transfer Module异步传输模式AUC Authentication Center鉴权中心BBU Base Band Unit基带处理单元BCC Base Color Code基站色码BCCH Broadcast Control Channel广播控制信道BCFE Broadcast Control Functional Entity广播控制功能实体BCH Broadcast Channel广播信道BER Bit Error Rate误比特率BLER BLock Error Rate误块率BLK CELL BLOCK CELL闭塞小区BMC Broadcast/Multicast Control广播／多播控制BOF Begin of Frame帧起始BS Base Station基站BSC Base Station Controller基站控制器BSIC Base Station Identity Code基站识别码BSS Base Station Subsystem基站子系统BTS Base Transceiver Station基站收发信机BTV Business TV商用电视C/I Carrier to Interference载干比CAPEX Capital Expenditure资本性支出CB Cell Bar小区接入禁止CBD Central Business District中央商务区CBQ Cell Bar Qualify小区禁止限制CC Country Code国家代码CCCH Common Control Channel公共控制信道CCE Control Channel Element控制信道单元CDMA Code Division Multiple Access码分多址CGI Cell Global Identity小区全球标识CI Cell Identity小区标识CIR Carrier to Interference Ration载干比CKSN Cipher Key Sequence Number密钥序列号CM Connection Management连接管理CMMB China Mobile Multimedia Broadcasting中国移动多媒体广播CN Core Network核心网CPCH Common Packet Channel公共分组传输信道CPICH Common Pilot Channel公共物理导频信道CQI Channel Quality Indication信道质量指示CQT Call Quality Test拨打测试CRC Cyclic Redundancy Check循环冗余校验CRNC Controlling RNC控制RNCC-RNTI Cell-Radio Network Temporary Identity小区无线网络临时标识CRO Cell Reselect Offset小区重选偏移CRS Cell-specific reference signals小区专用参考信号CS Circuit Switched电路交换CSCF Call Session Control Function呼叫会话控制功能CSCF Call State Control Function呼叫状态控制功能CSFB Circuit Switched Fallback电路域回落CSI-RS Channel State Indicator referencesignals 信道状态参考信号CSMA/CA Carrier Sense MultipleAccess/Collision Avoidance载波监听多路访问/冲突避免CTCH Common Traffic Channel公共业务信道D2D Device-to-Device终端直通DAS Distributed Antenna System分布式天线系统DCCH Dedicated Control Channel专用控制信道DCFE Dedicated Control Functional Entity专用控制功能实体DCH Dedicated Channel专用传输信道DCS Digital Cellular System数字蜂窝系统DECT Digital Enhanced CordlessTelecommunications数字增强无绳电话DL-SCH Downlink Shared Channel下行共享信道DM-RS Demodulation Reference Signal解调参考信号DNS Domain Name System域名系统DPCCH Dedicated Physical Control Channel专用物理控制信道DPCH Dedicated Physical Channel专用物理信道DPDCH Dedicated Physical Data Channel专用物理数据信道DPDCH Dedicated Physical Data Channel专用物理数据信道DQPSK Differential Quadrature ReferencePhase Shift Keying相对四相调制DRNC Drift RNC漂移RNCDRX Discontinuous Reception非连续接收DS-CDMA Direct Spread Code Division Multiple Access直接扩频码分多址DSCH Downlink Shared Channel下行共享传输信道DT DriveTest道路测试（路测）DTCH Dedicated Traffic Channel专用业务信道DTH Direct To Home直接到家庭DwPCH Downlink Pilot Channel下行导频信道DwPTS Downlink Pilot Time Slot下行导频时隙EDGE Enhanced Data Rate for GSM Evolution增强型数据速率GSM演进技术EDR Enhanced Data Rate增强数据率EHF Extremely High Frequency极高频EIR Equipment Identity Register设备识别寄存器eMBB Enhanced Mobile Broadband增强无线宽带ENB Evolved Node B演进型Node BeNB Evolved Node B演进型Node BEPC Evolved Packet Core演进的分组核心网（全IP的）EPS Evolved Packet System演进的分组系统ERAB Evolved Radio Access Bearer演进的无线接入承载eSRVCC Enhanced Single Radio Voice CallContinuityVoLTE语音业务连续性增强方案E-UTRA Evolved-UMTS Terrestrial Radio AccessNetwork演进的UMTS陆地无线接入网E-UTRAN Evolved UTRAN演进的通用地面无线接入网络F/R-CCCH Forward/Reverse Common Control Channel前向/反向公共控制信道F/R-CSCH Forward/Reverse Common Signaling Channel前向/反向公共信令信道F/R-DCCH Forward/Reverse Dedicated Control Channel前向/反向专用控制信道F/R-DSCH Forward/Reverse Dedicated Signaling Channel前向/反向专用信令信道F/R-FCH Forward/Reverse Fundamental Channel前向/反向基本信道F/R-PICH Forward/Reverse Pilot Channel前向/反向导频信道F/R-SCCH Forward/Reverse Supplemental Code Channel前向/反向补充码分信道F/R-SCH Forward/Reverse Supplemental Channel前向/反向补充信道FA Foreign Agent外地代理FACCH Fast Associated Control Channel快速随路控制信道FACH Forward Access Channel前向接入信道F-APICH Forward Dedicated Auxiliary Pilot Channel前向专用辅助导频信道F-ATDPICH Forward Auxiliary Transmit Diversity Pilot Channel前向辅助发送分集导频信道F-BCCH Forward Broadcast Control Channel前向广播控制信道FBI FeedBack Information反馈信息FBMC Filter-Bank Multi-Carrier滤波器组多载波F-CACH Forward Common Assignment Channel前向公共功率控制信道FCCH Frequency Correction Channel频率校正信道F-CPCCH Forward Common Power Control Channel前向公共指配信道FDD Frequency Division Duplexing频分双工FDMA Frequency Division Multiple Access频分多址FEC Forward Error Correction前向纠错码FER Frame Error Rate误帧率FFD Full-Function Device全功能设备FIR Fast Infrared高速红外FM Frequency Modulation频率调制FO Full Outdoor全室外微波F-OFDM Filtered-OFDM基于滤波的正交频分复用FPACH Fast Physical Access Channel快速物理接入信道F-PCH Forward Paging Channel前向寻呼信道F-QPCH Forward Quick Paging channel前向快速寻呼信道FSK Frequency Shift Keying频移键控F-SYNCH Forward Sync Channel前向同步信道F-TDPICH Forward Transmit Diversity Pilot Channel前向发送分集导频信道GBR Guranteed Bit Rate恒定的比特速率GERAN GSM EDGE Radio Access Network GSM EDGE无线接入网GFSK Gaussian Frequency-Shift Keying高斯频移键控GGSN Gateway GPRS Support Node网关GPRS支持节点GIS Geographic Information System地理信息系统GMSC Gateway MSC网关MSCGP Guard Period保护周期GPRS General Packet Radio System通用分组无线系统GPS Global Positioning System全球定位系统GSM Global System for Mobile Communication全球移动通信系统GTP GPRS Tunnelling Protocol GPRS隧道协议GTP-C GPRS Tunneling Protocol Control Plane GPRS隧道协议-控制平面GTP-U GPRS Tunneling Protocol User Plane GPRS隧道协议-用户平面HA Home Agent本地代理HARQ Hybrid Automatic Repeat reQuest混合自动重传请求HDR High Data Rata高速数据速率HDTV High Definition Television高清晰度电视HLR Home Location Register归属位置寄存器HRPD High Rata Packet Data高速分组数据HSDPA High Speed Downlink Packet Access高速下行链路分组接入HS-DPCCH Uplink High Speed Dedicated Physical Control Channel上行高速专用物理控制信道HS-DSCH High Speed Downlink Shared Channel高速下行共享信道HS-PDSCH High Speed Physical Downlink Shared Channel高速下行链路物理共享信道HSS Home Subscriber Server归属用户服务器HS-SCCH High Speed Shared Control Channel高速共享控制信道ICIC Inter-Cell Interference Coordination小区干扰协调IEEE Institute of Electrical and ElectronicEngineers电气与电子工程师协会IETF Internet Engineering Task Force因特网工程任务组IKE Internet Key Exchange互联网密钥交换IMEI International Mobile Station Equipment Identity全球移动台设备标识IMS IP Multimedia Sub-system IP多媒体子系统IMSI International Mobile SubscriberIdentity 国际移动用户识别码IMT International MobileTelecommunications 国际移动通信系统IMT-A International MobileTelecommunications Advanced高级国际移动通信系统IoT Internet of Things物联网IP Internet Protocol网际协议IrDA Infrared Data Association红外数据组织IrLAP Infrared Link Access Protocol红外链路接入协议IrLMP Infrared Link Management Protocol红外链路管理协议ISDN Integrated Services Digital Network综合业务数字网ISI Inter Symbol Interference符号间干扰ITU-R International Telecommunication Union:Radiocommunications sector国际电信联盟无线电通信组IWF Inter Working Function互操作功能KPI Key Performance Indicator关键绩效指标LAC Link Access Control链路接入控制LAI Location Area Identification位置区识别码LAP Link Access Procedure链路访问协议LCP Link Control Protocol链路配置协议LDPC Low Density Parity Check Code低密度奇偶校验码LOS Line of Sight视距LTE Long Term Evolution无线接口长期演进M2M Machine to Machine机器与机器MAC Medium Access Control媒体接入控制MAI Multiple Access Interference多址干扰MANO Management and Orchestration管理编排域MAP Mobile Application Part移动应用部分MBMS Multimedia Broadcast Multicast Service多媒体广播和多播业务MBR Maximum Bit Rate最高比特速率MCC Mobile Country Code移动国家号码MCCH Multicast Control Channel组播控制信道MCH Multicast Channel多播信道ME Mobile Equipment移动设备METIS Mobile and Wireless CommunicationsEnablers for Information Society信息社会的移动与无线通信赋能者MGCF Media Gateway Control Function媒体网关控制功能MGW Media GateWay媒体网关MIB Master Information Block主信息块MIMO Multiple-Input Multiple-Output多输入多输出技术MIR Mid-infrared中红外MM Mobility Management移动性管理MME Mobility Management Entity移动管理实体MMSE Minimum Mean Square Error最小均方误差mMTC Massive Machine TypeCommunications海量机器通信MNC Mobile Network Code移动通信网号码MOC Mobile Originating Call移动用户主叫MOS Mean Opinion Score平均值MPLS Multi-Protocol Label Switching多协议标签交换MPLS-TP Multi-Protocol Label Switching-Transport Profile传送多协议标签交换应用MQAM Multiple Quadrature AmplitudeModulation 多进制正交幅度调制MR Measurement Report测量报告MS Mobile Station移动台MS Mobile Station移动台MSC Mobile Switching Center移动交换中心MSIN Mobile Subscriber Identification Number移动用户的识别号码MSISDN Mobile Station International ISDN Number移动用户号码MSRN Mobile Station Roaming Number移动用户漫游号码MTC Mobile Terminating Call移动用户被叫MTCH Multicast Traffic Channe组播业务信道MUSA Multi-User Shared Access多用户共享接入NAS Non Access Stratum非接入层NB Narrow Band窄带NB Node B B节点（基站）NBAP Node B Application Part NodeB应用部分NCC Network Color Code网络色码NCP Network Control Protocol网络配置协议NDC National Destination Code国内接入码或称网络号NE Network Element网络单元NFV Virtual Network Function网络功能虚拟化NFV ISG Network Functions VirtualizationIndustry Specification Group网络功能虚拟化标准工作组NFVI NFV Infrastructure基础设施层NFVO NFV Orchestrator NFV编排器N-LOS Non Line of Sight非视距n-LOS near Line of Sight近视距NMC Network Manage Center网络管理中心NOMA Non-Orthogonal Multiple Access非正交多址Non－GBR Non－Guranteed Bit Rate不保证的比特速率NSAPI Network Service Access PointIdentifier 网络服务接入点标识符NSC Non Systematic convolutional非系统卷积码NSS Network Sub-System网络子系统NSS Network Switching System网络交换系统OFDM Orthogonal Frequency DivisionMultiplexing 正交频分复用OFDMA Orthogonal Frequency DivisionMultipleAccess正交频分多址接入OMC Operation and Maintenance Center操作维护中心OMS Operation and Maintenance System操作维护系统OPEX Operating Expenses运营成本OTD Orthogonal Transmission Diversity正交发射分集OVSF Orthogonal Variable Spreading Factor正交变长扩频码PA A PDSCH A类PDSCHPAP Password Authentication Protocol口令鉴权协议PB B PDSCH B类PDSCHPBCH Physical Broadcast Channel物理广播信道PCCH Paging control Channel寻呼控制信道PCCH Paging Logical Channel寻呼逻辑信道P-CCPCH Primary Common Control Physical Channel主公共控制物理信道PCF Packet Control Function分组控制功能PCFICH Physical Control Format IndicatorChannel 物理控制格式指示信道PCH Paging Channel寻呼信道PCI Physical Cell Identifier物理小区标识PCPCH Physical Common Packet Channel公共分组物理信道P-CPICH Primary Common Pilot Channel主公共导频信道PCRF Policy and Charging Rules Function策略和计费规则实体PDCCH Physical Downlink Control Channel物理下行控制信道PDCP Packet Data Converge Protocol分组数据汇聚协议PDMA Pattern Division Multiple Access图样分割多址PDP Packet Data Protocol分组数据协议PDSCH Physical Downlink Shared Channe物理下行共享信道PDSCH Physical Downlink Shared Channel下行链路物理共享信道PDSN Packet Data Serving Node分组数据服务节点PDU Protocol Data Unit协议数据单元PHICH Physical Hybrid ARQ Indicator Channel物理混合自动请求重传指示信道PICH Paging Indicator Channel寻呼指示信道PLMN Public Land Mobile Network公用陆地移动网PM Phase Modulation相位调制PMCH Physical Multicast Channel物理多播信道POI POINT OF INTERFACE多系统接入平台PPP Point to Point Protocol点对点协议PRACH Physical Random Access Channel物理随机接入信道PRB Physical Resource Block物理资源块PRRU Pico Remote Radio Unit微小远程无线电单元PS Packet Switched分组交换PSK Phase Shift Keying相移键控PSS Primary Synchronization Signal主同步信号PSTN Public Switched Telephone Network公共电话交换网PT Penalty Time惩罚时间PTCH Paging Transport Channel寻呼传输信道P-TMSI Packet-TMSI分组TMSIPUCCH Physical Uplink Control Channel物理上行控制信道PUSCH Physical Uplink Shared Channel物理上行共享信道QAM Quadrature Amplitude Modulation正交幅度调制QCI QoS Class Identifier服务质量等级标识QoS The Quality of Service服务质量QPSK Quadrature Phase Shift Keyin绝对四相调制RAC Routing Area Code路由区编码RACH Random Access Channel随机接入信道R-ACH Reverse Access Channel反向接入信道RAI Routing Area Identity路由区标识RAN Radio Access Network无线接入网RANAP RAN Application Part RAN应用部分RB Resource Block资源块RB Radio Bearer无线承载RBG Resource Block Group资源块组RE Resource Element资源单元R-EACH Reverse Enhanced Access Channel反向增强接入信道RET Remote Electrical Tilt远程电子倾斜RFD Reduced-Function Device精简功能设备RFID Radio Frequency Identification射频识别Rhub Remote hub远程集线器RLC Radio Link Control无线链路控制RN Radio Network无线网络RNC Radio Network Controller无线网络控制器RNS Radio Network Sub-system无线网络子系统RNSAP RNS Application Part RNS应用部分RNTI Radio Network Temporary Identity无线网络临时标识ROHC Robust Header Compression健壮性包头压缩RRC Radio Resource Control无线资源控制RRM Radio Resource Management无线资源管理RRU Radio Remote Unit射频拉远模块RS Reference Signal参考信号RSC Recursive Systematic Convolutionalcode 递归系统卷积码RSRP Reference Signal Receiving Power接收到的信号功率的平均值RSRQ Reference Signal Receiving Quality参考信号接收质量RSSI Received Signal Strength Indicator接收的信号强度指示RS-SINR Reference Signal-Signal toInterference plus Noise Ratio参考信号-信号与干扰加噪声比RTP Real-time Transport Protocol实时传输协议RTT Radio Transmission Technology无线传输技术RXLEV Received Signal Level接收信号电平S1-AP S1 Application Protocol S1接口应用协议SA Service Area业务区SA Security Association安全关联SAC Service Area业务区编码SAE System Architecture Evolution系统结构演进(LTE的核心网) SAP Service AccessPoint业务接入点SB Scheduling Block调度块SBC Session Border Controller会话边界控制器SCC AS Service Centralization and ContinuityApplication Server业务集中及连续应用服务器S-CCPCH Secondary Common Control PhysicalChannel 辅公共控制物理信道SCH Synchronization Channel同步信道SCMA Sparse Code Multiple Access稀疏码分多址SCPC Single Channel Per Carrier单路单载波SCTP Stream Control Transmission Protocol流控制传输协议SDCCH Stand-Alone Dedicated Control Channel独立专用控制信道SDMA Space Division Multiple Access空分多址SDN Software Defined Network软件定义网络SDU Service Data Unit业务数据单元SF Spreading Factor扩频因子SGSN Serving GPRS Support Node服务GPRS支持节点S-GW Serving Gateway entities服务网关实体SHCCH Share Control Channel共享控制信道SHF Super-High Frequency超高频SIB System Information Block系统信息块SIM Subscriber Identification Module用户身份识别卡SINR Signal to Interference plus NoiseRatio 信号与干扰加噪声比SIP Session Initiation Protocol会话初始化协议SIR Signal to interference Ratio信干比SIR Serial InfraRed串行红外SISO Single-Input Single-Output单入单出SMSC Short Message Service Center短消息业务中心SN Subscriber Number用户号码SNG Satellite News Gathering卫星新闻采集SON Self-Organized Network自组织网络SR Scheduling Request调度请求SRI Scheduling Request Indication调度请求指示SRNC Serving RNC服务RNCSRS Sounding Reference Signal侦听参考信号SRVCC Single Radio Voice Call Continuity VoLTE语音业务连续性方案SS Synchronization Shift同步偏移SSS Secondary Synchronization Signal从同步信号STM Synchronous Transfer Module同步传输模式STS Space Time Spreading空时扩展分集SWAP Shared Wireless Access Protocol共享无线接入协议TA Timing Advance时间提前量TA Tracking Area跟踪区TAC Tracking Area Code跟踪区域代码TAU Tracking Area Update跟踪区域更新TCH Traffic Channel业务信道TCH Traffic Channel业务信道TCP Transport Control Protocol传输控制协议TDD Time Division Duplexing时分双工TDM Time Division Multiplexing时分复用TDMA Time Division Multiple Access时分多址TD-SCDMA Time Division Synchronous CDMA时分同步CDMATF Transport Format传输格式TFC Transport Format Combination传输格式组合TFCI Transport Format Combination Indicator传输格式组合指示TFCS Transport Format Combination Set传输格式组合集TFI Transport Format Indicator传输格式指示TID Tunnel Identity隧道标识TM Transparent Mode透明模式TMA Tower Mounted Amplifier塔顶放大器TMSI Temporary Mobile Subscriber Identity临时移动用户识别码TO Temporary Offset临时偏移TPC Transmission Power Control发射功率控制TSAT T1-Small Aperture Terminal T1小口径地球站TTI Transmission Time Interval传输时间间隔TVRO Television Receive-Only电视单收TVSAT TV Small Aperture Terminal,TV小口径地球站TWR Two-Way Relaying双向中继UBL CELL UNBLOCK CELL解闭塞小区UCI Uplink Control Information上行控制信息UDN Ultra-Dense Network超密集组网UDP User Datagram Protocol用户数据报协议UE User Equipment用户设备UHF Ultra-High Frequency特高频UL CoMP Uplink Coordinated Multi-Point上行多点协作UL-SCH Uplink Shared Channel上行共享信道UM Unacknowledged Mode非确认模式UMTS Universal Mobile TelecommunicationServices通用移动通信系统UpPCH Uplink Pilot Channel上行导频信道UpPTS Uplink Pilot Time Slot上行导频时隙URA UTRAN Registration Area UTRAN登记区uRLLC Ultra-reliableand Low-latencyCommunications超可行低时延通信USAT Ultra Small Aperture Terminal超小口径天线终端USCH Uplink Shared Channel上行共享传输信道USIM UMTS Subscriber Identity Module UMTS用户标识模块UTRAN UMTS Terrestrial Radio Access Network UMTS的陆地无线接入网UWB Ultra Wideband超宽带（无载波通信技术）VIM Virtualized Infrastructure Manager虚拟化基础设施管理器VLC Visible Light Communication可见光通信VLR Visitor Location Register拜访位置寄存器VNF Virtual Network Function虚拟网络功能VNFM VNF Manager VNF管理器VoIP Voice over IP基于IP的语音服务VoLTE Voice over LTE基于LTE的语音VSAT Very Small Aperture Terminal甚小天线地球站VSWR Voltage Standing Wave Ratio电压驻波比WB Wide Band宽带WCDMA Wideband Code Division Multiple Access宽带码分多址WiFi Wireless Fidelity无线保真技术WRC World Radiocommunication Conference世界无线电通信大会X2-AP X2 Application Protocol X2接口应用协议ZF Zero Forcing迫零算法。

计算机网络英文缩写词ACK (ACKnowledgement) 确认ADSL (Asymmetric Digital Subscriber Line) 非对称数字用户线AF PHB (Assured Forwarding Per-Hop Behavior) 确保转发每跳行为AH (Authentication Header) 鉴别首部ALOHA (Additive Link On-line HAwaii system) 一种随机接入系统AN (Access Network ）接入网ANSI (American National Standards Institute) 美国国家标准协会AP (Access Point) 接入点API (Application Programming Interface) 应用编程接口APNIC (Asia Pacific Network Information Center) 亚太网络信息中心ARP （Address Resolution Protocol ）地址解析协议ARPA (Advanced Research Project Agency)美国国防部远景研究规划局（高级研究计划署）ARQ (Automatic Repeat reQuest) 自动请求重发AS (autonomous system) 自治系统ASN.1(Abstract Syntax Notation One ）抽象语法记法1ATM (Asynchronous Transfer Mode) 异步传递方式ATU (Access Termination Unit) 接入端接单元ATU-C (Access Termination Unit Central Office ）端局接入端接单元ATU-R (Access Termination Unit Remote) 远端接入端接单元AUI (Attachment Unit Interface ）连接接口单元AWT （Abstract Window Toolkit ）抽象窗口工具箱BECN (Backward Explicit Congestion Notification) 反向显式拥塞通知BER (Basic Encoding Rule) 基本编码规则BGP (Border Gateway Protocol) 边界网关协议B-ISDN (Broadband-ISDN) 宽带综合业务数字网BLAM (Binary Logarithmic Arbitration Method) 二进制对数仲裁方法BOOTP (BOOTstrap Protocol) 引导程序协议BSA (Basic Service Area) 基本服务区BSS (Basic Service Set) 基本服务集CA (Certification Authority) 认证中心CAC (Call Admission Control ）呼叫接纳控制CAC (Connection Admission Control) 连接准许控制CAP (Carrierless Amplitude Phase) 无载波振幅相位调制CATV (Community Antenna TV, CAble TV) 有线电视CBR （Constant Bit Rate ）恒定比特率CCIR (Consultative Committee ，International Radio) 国际无线电咨询委员会CCITT (Consultative Committee, International Telegraph and Telephone)国际电报电话咨询委员会CCS (Common-Channel Signaling) 共路信令CDM (Code Division Multiplexing) 码分复用CDMA (Code Division Multiplex Access) 码分多址CDV (Cell Del 盯Variation ）信元时延偏差CDVT (Cell Delay Variation Tolerance) 容许的信元时延偏差CFI (Canonical Format Indicator) 规范格式指示符CGI (Common Gateway Interface) 通用网关接口CIDR (Classless InterDomain Routing) 无分类域间路由选择CIR (Committed Information Rate ）承诺的信息速率CLP (Cell Loss Priority) 信元丢失优先级CLR （Cell Loss Ratio ）信元丢失率CMIP (Common Management Information Protocol) 公共管理信息协议CMOT (Common Management information service and protocol Over TCP/IP)在TCP/IP 上的公共管理信息服务与协议CNNIC (Network Information Center of China) 中国互联网络信息中心CPE (Customer Premises Equipment) 用户屋内设备CRC (Cyclic Redundancy Check) 循环冗余检验CS (Convergence Sublayer) 汇聚子层CS-ACELP (Conjugate-Structure Algebraic-Code-Excited Linear Prediction)共轭结构代数码激励线性预测（声码器）CSMA/CD (Carrier Sense Multiple Access ／Collision Detection)载波监听多点接刀冲突检测CSMA/CA (Carrier Sense Multiple Access ／Collision Avoidance) 载波监听多点接A/ 冲突避免CSRC (Contributing SouRCe identifier) 参与源标识符CSU/DSU （Channel Service Unit/Data Service Unit) 信道服务单元／数据服务单元CTD (Cell Transfer Delay) 信元传送时延CTS (Clear To Send) 允许发送DACS (Digital Access and Cross-connect System) 数字交接系统DARPA (Defense Advanced Research Project Agency) 美国国防部远景规划局（高级研究署）DAVIC (Digital Audio Visual Council) 数字视听协会DCE (Data Circuit-terminating Equipment) 数据电路端接设备DCF (Distributed Coordination Function ）分布协调功能DDoS (Distributed Denial of Service ）分布式拒绝服务DE (Discard Eligibility) 丢弃指示DES (Data Encryption Standard) 数据加密标准DHCP (Dynamic Host Configuration Protocol) 动态主机配置协议DiffServ (Differentiated Services ）区分服务DIES (Distributed Coordination Function IFS ）分布协调功能帧间间隔DLCI (Data Link Connection Identifier) 数据链路连接标识符DMT (Discrete Multi-Tone) 离散多音（调制）DNS (Domain Name System) 域名系统DOCSIS (Data Over Cable Service Interface Specifications)电缆数据服务接口规约DoS (Denial of Service) 拒绝服务DS (Distribution System) 分配系统DS (Differentiated Services) 区分服务（也写作DiffServ ）DSCP (Differentiated Services CodePoint) 区分服务码点DSL (Digital Subscriber Line) 数字用户线DSLAM (DSL Access Multiplexer) 数字用户线接入复用器DSSS (Direct Sequence Spread Spectrum) 直接序列扩频DTE (Data Terminal Equipment) 数据终端设备DVMRP (Distance Vector Multicast Routing Protocol) 距离向量多播路由选择协议DWDM (Dense WDM) 密集波分复用EBCDIC (Extended Binary-Coded Decimal Interchange Code) 扩充的二/十进制交换码EDFA (Erbium Doped Fiber Amplifier) 掺饵光纤放大器EF PHB (Expedited Forwarding Per-Hop Behavior) 迅速转发每跳行为EGP (External Gateway Protocol) 外部网关协议EIA (Electronic Industries Association ）美国电子工业协会ESP (Encapsulating Security Payload) 封装安全有效载荷ESS 伍xtended Service Set) 扩展的服务集EUI （Extended Unique Identifier) 扩展的惟一标识符FCS (Frame Check Sequence) 帧检验序列FDDI (Fiber Distributed Data Interface ）光纤分布式数据接口FDM (Frequency Division Multiplexing) 频分复用FEC (Forwarding Equivalence Class) 转发等价类FEC (Forward Error Correction) 前向纠错FECN (Forward Explicit Congestion Notification) 前向显式拥塞通知FHSS (Frequency Hopping Spread Spectrum) 跳频扩频FIFO （First In First Out) 先进先出FOIRL (Fiber Optic Inter-Repeater Link) 转发器间的光纤链路FQ (Fair Queuing) 公平排队FR (Frame Relay) 帧中继FSK (Frequency Shift Keying) 移频键控FTP (File Transfer Protocol ）文件传送协议FTTB (Fiber To The Building) 光纤到大楼FTTC (Fiber To The Curb ）光纤到路边FTTH (Fiber To The Home) 光纤到家GCRA (Generic Cell Rate Algorithm) 一般信元速率算法GIF (Graphics Interchange Format) 图形交换格式GII (Global Information Infrastructure) 全球信息基础结构，全球信息基础设施GFC （Generic Flow Control) 通用流量控制GSM (Group Special Mobile) 群组专用移动通信体制HDLC (High-level Data Link Control) 高级数据链路控制HDSL (High speed DSL) 高速数字用户线HEC (Header Error Control) 首部差错控制HFC (Hybrid Fiber Coax) 光纤同轴混合（网）HH'PI (HIgh-Performance Parallel Interface) 高性能并行接口HSSG (High Speed Study Group) 高速研究组HTML (HyperText Markup Language) 超文本置标语言HTTP (HyperText Transfer Protocol) 超文本传送协议IAB (Internet Architecture Board) 因特网体系结构委员会IAC （Interpret As Command ）作为命令解释IAHC (Internet International Ad Hoc Committee ）因特网国际特别委员会IANA (Internet Assigned Numbers Authority) 因特网号码指派管理局ICANN (Internet Corporation for Assigned Names and Numbers) 因特网名字与号码指派公司ICMP （Internet Control Message Protocol ）因特网控制报文协议IDEA (International Data Encryption Algorithm) 国际数据加密算法IESG (Internet Engineering Steering Group) 因特网工程指导小组IETF (Internet Engineering Task Force) 因特网工程部IFS (InterFrame Space) 帧间间隔IGMP (Internet Group Management Protocol) 因特网组管理协议IGP (Interior Gateway Protocol) 内部网关协议IM (Instant Messaging) 即时传信IMAP (Internet Message Access Protocol) 因特网报文存取协议IMP （Interface Message Processor) 接口报文处理机IntServ (Integrated Services) 综合服务IP (Internet Protocol ）网际协议IPOA (IP Over ATM ）IP 在ATM 上运行IPsec (IP security) IP 安全协议IPX (Internet Packet Exchange) Novell 公司的一种连网协议IR (InfraRed ）红外技术IRTF （Internet Research Task Force ）因特网研究部ISDN (Integrated Services Digital Network) 综合业务数字网ISO （International Organization for Standardization ）国际标准化组织ISOC (Internet Society) 因特网协会ISP （Internet Service Provider) 因特网服务提供者ITU （International Telecommunication Union ）国际电信联盟ITU-T （ITU Telecommunication Standardization Sector) 国际电信联盟电信标准化部门JPEG (Joint Photographic Expert Group) 联合图像专家组标准KDC (Key Distribution Center) 密钥分配中心KDC (Key Distribution Center) 密钥分配中心LAN (Local Area Network ）局域网LANE (LAN Emulation ）局域网仿真LAPB (Link Access Procedure Balanced) 链路接入规程（平衡型）LCP (Link Control Protocol) 链路控制协议LDP (Label Distribution Protocol) 标记分配协议LLC (Logical Link Control) 逻辑链路控制LSP (Label Switched Path) 标记交换路径LSR (Label Switching Router) 标记交换路由器MAC (Medium Access Control) 媒体接入控制MAN (Metropolitan Area Network) 城域网MAU (Medium Attachment Unit) 媒体连接单元MBONE (Multicast Backbone On the InterNEt ）多播主干网MBS (Maximum Burst Size ）最大突发长度MCR (Minimum Cell Rate ）最小信元速率MCU (Multipoint Control Unit)多点控制单元MD (Message Digest) 报文摘要MDI (Medium Dependent Interface ）媒体相关接口MIB (Management Information Base) 管理信息库MIME (Multipurpose Internet Mail Extensions) 通用因特网邮件扩充MIPS （Million Instructions Per Second ）百万指令每秒MOTIF (Message Oriented Text Interchange System) 面向报文的电文交换系统MPEG (Motion Picture Experts Group) 活动图像专家组标准MPOA (MultiProtocol Over ATM) 多协议在ATM 上运行MPLS (MultiProtocol Label Switching) 多协议标记交换MRU (Maximum Receive Unit) 最大接收单元MSS (Maximum Segment Size) 最长报文段MTU (Maximum Transfer Unit) 最大传送单元NAK (Negative AcKnowlegement) 否认帧NAP （Network Access Point) 网络接入点N.ISDN (Narrowband-ISDN) 窄带综合业务数字网NAT (Network Address Translation ）网络地址转换NAV (Network Allocation Vector) 网络分配向量NCP (Network Control Protocol) 网络控制协议NFS (Network File System) 网络文件系统NIC (Network Interface Card) 网络接口卡、网卡NII (National Information Infrastructure) 国家信息基础结构，国家信息基础设施NLA ID (Next-Level Aggregation Identifier) 下一级聚合标识符NLRI (Network Layer Reachability Information) 网络层可达性信息NNI (Network-Node Interface) 网络结点接口NSF (National Science Foundation) （美国）国家科学基金会NVT (Network Virtual Terminal ）网络虚拟终端CPU：Central Processing Unit，中央处理单元，又叫中央处理器或微处理器，被喻为电脑的心脏。

计算机网络名词英文缩写解释大全计算机网络名词英文缩写解释大全AAL ATM适配层ATM Adaptation LayerABR可用比特率Available Bit RateACR衰减串扰比ADPCM自适应差分PCMADSL非对称数字环路Asymmetric Digital Subscriber LineAMI ATM Management InterfaceAMPS先进型移动电话系统Advanced Mobile Phone SystemANS高级网络与服务Advanced Networks and ServicesANSI美国国家标准协会American National Standard InstituteAPON无源光纤网络ARP地址解析协议Address Resolution ProtocolARQ自动重发请求Automatic Repeat RequestAS自制系统Autonomous SystemASIC Application Specific Integrated Circuit(Chip)ASN.1Abstract Syntax Notation OneATD异步时分复用Asynchronous Time DivisionATM异步传输模式Asynchronous Transfer ModeBBS电子公告板Bulletin Board SystemBER误比特率bit error rateBGP边界网关协议Border Gateway ProtocolBICMOS双极型CMOSBIP-8Bit Interleaved Parity-8B-ISDN宽带综合业务数字网Broadband Integrated Services Digital Network BMI Bus-Memory InterfaceBOOTP引导协议BOOTstrapping ProtocolBRI单一ISDN基本速率BUS广播和未知服务器Broadcast/Unknown ServerCAC连接接纳控制Connection Admission ControlCATV公用天线电视CBDS无连接宽带数据服务CBR连续比特率Continuous Bit RateCCITT国际电话电报咨询委员会CD Carrier DetectCDB Configuration DatabaseCDMA码分多址Code Division Multiple AccessCDPD蜂窝数字分组数据Cellular Digital Packet DataCDV信元延时变化Cell Delay VariationCEC Common Equipment CardCERNET中国教育科研网CIDR无类型域间路由Classless InterDomain RoutingCLIP Classical IPCLP信元丢失优先级CMIS/CMIP the Common Management Information Service/ProtocolCMOS互补型金属氧化物半导体CMOT CMIS/CMIP on TCP/IPCNOM网络营运与管理专业委员会Committee of Network Operation and Manag ementCORBA公共对象请求代理结构Common Object Request Broker ArchitectureCPAN Comprehensive Perl archieve NetworkCPE Customer Premises EquipmentCPCS公共部分会聚子层Common Part Convergence SublayerCR Carriage ReturnCS会聚子层Convergence SublayerCSDN电路交换数据网CSMA/CD载波侦听多路访问/冲突检测Carrier Sense Multi-Access/Collision Det ectionDAC Dual Attach ConcentratorDAS Dual Attach StationDCD Data Carrier DetectDCE数据电路端接设备Digital Circuit-terminating EquipmentDHCP动态主机控制协议DIME直接内存执行Direct Memory ExecuteDME分布式管理环境Distributed Management EnvironmentDNS域名系统Domain Name SystemDPI每英寸可打印的点数Dot Per InchDQDB分布式队列双总线Distributed Queue Dual BusDS-3Digital Standard-3DSMA数字侦听多重访问Digital Sense Multiple AccessDSP Digital Signal ProcessingDTE数据终端设备Data Terminal EquipmentDTR Data Terminal ReadyDVMRP距离向量多目路径协议Distance Vector Multicast Routing ProtocolECL硅双极型ECSRN华东南地区网EGP外部网关协议Exterior Gateway ProtocolEIA/TIA Electronic Industries Association and the Telecommunication Indust ries AssociationEMA以太网卡Ethernet Media AdapterE-mail电子邮件Electronic MailEPD提前舍弃分组数据包FAQ常见问题解答Frequently Answer QuestionFCS快速电路交换Fast Circuit SwitchingFDDI光纤分布式数据接口Fiber Distributed Data InterfaceFDM频分多路复用Frequency Division MultiplexingFEC前向差错纠正Forward Error CorrectionFEMA快速以太网卡Fast Ethernet Media AdapterFEXT远端串扰FITL光纤环路FMA FDDI网卡FDDI Media AdapterFOIRL Fiber Optic Inter-repeater LinkFTP文件传输协议File Transfer ProtocolFTTC光纤到楼群Fiber To The CurbFTTH光纤到户Fiber To The HomeGCRA通用信元速率算法Generic Cell Rate AlgorithmGGP网关-网关协议Gateway-Gateway ProtocolGSM移动通信全球系统(全球通)Global Systems for Mobile communications HEC信头错误控制Header Error ControlHCS头校验序列Header Check SequenceHDLC高级数据链路控制（协议）High-Level Data Link ControlHDTV数字高清晰度电视High Definition TeleVisionHFC混合光纤同轴Hybrid Fiber CoaxHIPPI高性能并行接口High Performance Parallel InterfaceHOL队头阻塞HTTP超文本传输协议HyperText Transfer ProtocolHub集线器IAB因特网结构委员会Internet Architecture BoardIAP因特网接入提供商Internet Access ProviderICCB Internet控制与配置委员会Internet Control and Configuration Board ICMP因特网控制信息协议Internet Control Message ProtocolICP Internet Content ProviderICX部件间交换Inter-Cartridge ExchangeIDP网间数据报协议Internetwork Datagram ProtocolIDU接口数据单元Interface Data UnitIEEE电子和电气工程师协会Institute of Electrical and Electronics Engineers IETF因特网工程特别任务组Internet Engineering Task ForceIGMP Internet组管理协议Internet Group Management ProtocolIGP内部网关协议Interior Gateway ProtocolIISP间歇交换机信令协议ILMI过渡性局域管理界面(?)IMP接口信息处理机Interface Message ProcessorIMTS改进型移动电话系统Emproved Mobile Telephone SystemIP因特网协议Internet ProtocolIRC Internet Relay ChatIRTF因特网研究特别任务组Internet Research Task ForceISDN综合业务数字网Integrated Services Digital NetworkISO国际标准化组织International Organization for Standardization（或简称International Standard Organization）ISP因特网服务提供商Internet Service ProvederIT信息技术Information TechnologyITU国际电信联盟International Telecommunications UnionJPEG图像专家联合小组Joint Photographic Experts GroupL2F第二层转发L2TP第二层隧道协议LAN局域网Local Area NetworkLANE局域网仿真LAN EmulationLAP链路访问过程Link Access ProcedureLCP链路控制协议Link Control ProtocolLE_ARP LAN仿真地址转换协议LEC局域网仿真客户端LAN Emulation ClientLECS局域网仿真配置服务LAN Emulation Configure ServiceLED发光二极管LES局域网仿真服务器LAN Emulation ServerLF Line FeedLI长度指示LIM插件板LLC逻辑链路控制Logical Link ControlMAC介质访问控制Media Access ControlMAN城域网Metropolitan Area NetworkMACA避免冲突的多路访问(协议)(IEEE802.11无线局域网标准的基础)Multiple Access with Access AvoidanceMAU Medium Access UnitMIB管理信息库Management Information BaseMIC Media interface connectorModem调制解调器MOTD当日消息Message Of The DayMPC MPOA ClientMPEG活动图像专家组Motion Picture Experts GroupMRFCS多速率快速电路交换Multirate Fast Circuit SwitchingMPOA Multi-Protocol Over ATMMPS MPOA ServerMRCS多速率电路交换Multirate Circuit SwitchingMSC移动交换中心Mobile Switching CenterMTBF两次故障间的平均时间Media Time Between FaultsMTOR故障修复所需平均时间Media Time of RepairMTP邮件传输协议Mail Transfer ProtocolMTSO移动电话交换站Mobile Telephone Switching OfficeMTTD故障诊断所需平均时间Media Time to DiagnoseMTU最大传输单元Maximum Transfer UnitNAP网络接入点Network Access PointNCA网络计算结构Network Computing ArchitectureNCFC中国国家计算机网络设施，国内也称中关村网The National Computing and Network Facility of ChinaNCP网络控制协议Network Control ProtocolNCP网络核心协议Network Core ProtocolNEXT近端串扰NFS网络文件系统Network File SystemNHRP下一个节点路由协议NHS NHRP ServerNIC Null-Attach ConcentratorNIC网卡Network Interface CardNIC网络信息中心Network Information CentreNIM网络接口模块Network Interface ModuleNISDN窄带ISDN Narrowband Integrited Services Digital NetworkNLAM网络层地址管理NNI网络-网络接口Network-Network InterfaceNOMS网络营运与管理专题讨论会Network Operation and Management Sympo siumNREN（美国）国家研究和教育网National Research and Education Network NSAP网络服务接入点Network Service Access PointNSF（美国）国会科学基金会NVRAM Non-volatile RAMNVT网络虚拟终端Network Virtual TerminalOAM操作与维护Operation And MaintenanceODBC开放数据库互连Open Database ConnectionORB对象请求代理Object REquest BrokerOSF开放软件基金会Open Software FundationOSI开放系统互联Open System InterconnectionOSPF开放最短路径优先(协议)Open Shortest Path FirstPBX用户交换机***Branch eXchangePCM脉冲编码调制Pulse Code ModulationPCN个人通信网络Personal Communications NetworkPCR峰值信元速率Peak Cell RatePCS个人通信服务Personal Communications ServicePDH准同步数字系列PDA个人数字助理Personal Digital AssistantPDN公用数据网Public Data NetworkPDU协议数据单元Protocol Data UnitPER分组差错率packet error ratePEM Port Expansion ModulePIR分组插入率packet insertion ratePI/SO Primary In/Secondary OutPLCP物理层会聚协议Physical Layer Convergence ProtocolPLR分组丢失率packet loss ratePMD物理媒体相关（子层）Physical Medium DependentPOH通道开销PON无源光纤网POP Post Office ProtocolPO/SI Primary Out/Secondary InPOTS普通老式电话业务Plain Old Telephone ServicePPD部分舍弃分组数据包Partial Packet DiscardPPP点到点协议Point to Point ProtocolPPTP点对点隧道协议PRM每分钟可打印输出的页数Page Per MinutePRM协议参考模型Protocol Reference ModelPRN分组无线网Packet Radio NetworkPSN分组交换节点Packet Switch NodePSDN分组交换数据网PSTN公用电话交换网Public Switched Telephone NetworkPVC永久虚电路（包括PVPC和PVCC）Permanent Virtual CircuitPVPC permanent virtual path connectionPVCC permanent virtual channel connectionPVP永久虚路径Permanent Virtual PathQoS服务质量Quality of ServiceRADIUS远端授权拨号上网用户服务RARP逆向地址解析协议Reverse Address Resolution ProtocolRAS远程访问服务器RFC请求评注Request for CommentsRFT Request for TechnologyRIP Routing Information ProtocolRMON远程网络管理Router路由器RPC远程过程调用Remote Procedure CallRSVP资源重复利用协议RTMP Routing Table Maintenance Protocol(用于Appletalk)RTP接收和发送端口RTS往返样本Round Trip SampleRTS剩余时间标签SAP业务接入点Service Access PointSAP服务公告协议Service Advertising ProtocolSAR分段和重组(子层)Segmentation and ReassemblySAS Single Attached StationSC Stick and Click connectorSCR信号串扰比SCR持续信元速率Sustained Cell RateSCS交换控制软件SDH同步数字系列Synchronous Digital HierarchySDLC同步数据链路控制(协议)Advanced Data Communication Control Procedu reSDTV标准数字电视SDU业务数据单元Service Data UnitSIPP增强的简单因特网协议Simple Internet Protocol PlusSLIP串行线路IP Serial Line Interface ProtocolSMDS交换式多兆比特数据业务Switched Multimegabit Data Services SMF单模光纤Single-mode FiberSMI Structure of Management Information（MIB的结构）SMT站点管理Station ManagementSMTP简单邮件传输协议Simple Mail Transfer ProtocolSNA系统网络体系结构System Network ArchitectureSNMP简单网络管理协议Simple Network Management ProtocolSNR信噪比Signal-Noise ratioSOH段开销SONET同步光纤网络Synchronous Optical NetworkSPE同步净荷包Synchronous Payload EnvelopeSPP定序分组协议（XNS中，相当于TCP）Sequential Packet ProtocolSRTS同步剩余时间标签法SSCS业务特定部分会聚子层SSI服务器端包含Server Side IncludeST Stick and Turn connectorSTM同步传输方式Synchronous Transfer ModeSTP屏蔽双绞线Shielded Twisted PairSTS同步传输信号Synchronous Transport SignalSVC交换虚电路Switched Virtual CircuitSwitch交换机TAC Technical Assistance CenterTAST时间分配话音插空技术Time Assignment by Speech Interpolation TC传输汇集(子层)Transmission ConvergenceTCP传输控制协议Transmission Control ProtocolTDM时分多路复用Time Division MultiplexingTFTP单纯文件传输协议Trivial File Transfer protocolTIP终端接口处理机Terminal Interface ProcessorTP双绞线Twisted PairTSAP传输层服务访问点Transport Service Access PointTTL生存时间Time To LiveTTR定时令牌旋转UBR未定义比特率Undefined Bit RateUEM通用以太网模块Universal Ethernet ModuleUDP用户数据报协议User Datagram ProtocolUI Unix国际UNI用户-网络接口User-Network InterfaceUPC使用参数控制Usage Parameter ControlURL统一资源定位Universal Resource LocatorUSB通用串行总线Universal Serial BusUTP非屏蔽双绞线Unshielded Twisted PairUUCP Unix to Unix Copy ProgramVAN增值网Value Added NetworkVBR可变比特率Variable Bit RateVCC虚信道连接Virtual Channel ConnectionVCI virtual channel identifierV-D向量-距离（算法）又叫Bellman-Ford算法）vector-distanceVLAN Virtual LANVLSI超大规模集成电路VOD点播图像Video on DemandVPC虚路径连接Virtual Path ConnectionVPI虚路径标识virtual path identifierVPN虚拟专用网络Virtual***NetworkVRML虚拟现实造型语言Virtual Reality Modeling Language VTP虚拟隧道协议WAN广域网Wide Area NetworkWDM波分多路复用Wavelength Division Multiplexing WDMA波分多路访问Wavelength Division Multiple Access WRB Web请求代理Web Request BrokerWWW万维网World Wide WebXNS Xerox Network System。

3G-MSC 3rd Generation Mobile Switching Centre 第三代移动交换中心3G-SGSN 3rd Generation Serving GPRS Support Node 第三代服务GPRS 的节点3GPP 3rd Generation partnership project 3 代合作项目AAL2 ATM Adaptation Layer type 2 ATM 适配层2AAL5 ATM Adaptation Layer type 5 ATM 适配层5ACIR Adjacent Channel Interference Ratio 邻道干扰比ACLR Adjacent Channel Leakage power Ratio 邻道泄漏功率比ACS Adjacent Channel Selectivity 邻道选择性210ALCAP Access Link Control Application Part 接入链路控制应用部分AMC Adapt Modulation Coding 自适应调制编码ARQ Automatic Repeat Request 自动重复请求ASN.1 Abstract Syntax Notation One 抽象语义描述1ATM Asynchronous Transfer Mode 异步传输模式AuC Authentication Centre 鉴权中心BCH Broadcast Channel 广播信道BCCH Broadcast Control Channel 广播控制信道BER Bit Error Rate 误比特率BGCF Breakout Gateway Control Function 突破网关控制功能BSC Base Station Controller 基站控制器BSS Base Station Subsystem 基站子系统BTS Base Transceiver Station 基站收发机CC Call Control 呼叫控制CCCH Common Control Channel 公共控制信道CCH Control Channel 控制信道CCPCH ` Common Control Physical Channel 公共控制物理信道CDMA Code Division Multiple Access 码分多址CDMA TDD CDMA Time Division Duplex 码分多址时分双工CFN Connection Frame Number 连接帧号CM Connection Management 连接管理CN Core Network 核心网CQI Channel Quality Indicator 信道质量指示CRC Cyclic Redundancy Check 循环冗余检验CRNC Controlling Radio Network Controller 控制的无线网络控制器CS Circuit Switched 电路交换CSCF Call Server Control Function 呼叫服务器控制功能DCA Dynamic channel allocation 动态信道分配DCCH Dedicated Control Channel 专用控制信道DCH Dedicated Transport Channel 专用传输信道DL Downlink 下行链路DOA Direction Of Arrival 到达方向DPCH Dedicated Physical Channel 专用物理信道DRNC Drift Radio Network Controller 漂移无线网络控制器DRNS Drift RNS 漂移RNSDS CDMA Direct Spreading CDMA 直接扩频码分多址DSCH Down-link Shared Channel 下行共享信道DTCH Down-link Traffic Channel 下行业务信道DwPCH Downlink Pilot Channel 下行导频信道DwPTS Downlink Pilot Time Slot 下行导频时隙EIR Equipment Identity Register 设备标识寄存器EP Elementary Procedure 基本过程FACH Forward Access Channel 前向接入信道211FDD Frequency Division Duplex 频分双工FFS For Further Study 进一步研究FP Frame Protocol 帧协议FPACH Fast Physical Access Channel 快速物理接入信道FT Frame Type 帧类型GGSN Gateway GPRS Support Node GPRS 网关支持节点GMM GPRS Mobility Management GPRS 移动性管理GMSC Gateway MSC 网关移动业务中心GPRS General Packet Radio Service 通用分组无线业务GPS Global Positioning System 全球定位系统GRR GPRS Radio Resources GPRS 无线资源GSM Global System for Mobile Communication 全球移动通信系统GTP GPRS Tunneling Protocol GPRS 隧道协议HARQ Hybrid Automatic Repeat Request 混合自动重复请求HFN Hyper Frame Number 超帧号HLR Home Location Register 归属位置寄存器HSDPA High Speed Downlink Packet Access 高速下行分组接入HSS Home Subscriber Server 归属用户服务器IMSI International Mobile Subscriber Identity 国际移动用户标识码IMT-2000 International Mobile Telecommunications 2000国际电联命名3 代移动通信系统IP Internet Protocol 因特网协议IS-2000 IS-95 Evolution Standard (cdma2000) cdma2000ITU International Telecommunication Union 国际电联L1 Layer 1 层1L2 Layer 2 层2LAN Local Area Network 本地网络LMU Location Measurement Unit 位置测量单元MAC Medium Access Control 媒质接入控制MAP Mobile Application Part 移动应用部分MC CDMA Multiple Carrier CDMA 多载波码分多址MC TDMA Multiple Carrier TDMA 多载波时分多址ME Mobile Equipment 移动设备MGCF Media Gateway Control Function 媒体网关控制功能MGW Media Gateway 媒体网关MIB Master Information Block 控制信息块Mcps Mega Chip Per Second 每秒兆ChipMM Mobility Management 移动性管理MPLS MultiProtocol Label Switching 多协议标签交换MRF Media Resource Function 媒体资源功能MRFC Media Resource Function Controller 媒体资源功能控制器MRFP Media Resource Function Processor 媒体资源功能处理器MSC Mobile Services Centre 移动业务中心212MTP Message Transfer Part 消息传输部分MTP3-B Message Transfer Part level 3 3 级消息传输部分M3UA MTP3 User Adaptation Layer MTP3 用户适配层NAS Non Access Stratum 非接入层NBAP NodeB Application Part Node B 应用部分O&M Operation and Maintenance 操作维护PC Power Control 功率控制PCCH Paging Control Channel 寻呼控制信道PCCPCH Primary Common Control Physical Channel 基本公共控制物理信道PCH Paging Channel 寻呼信道PDSCH Physical Downlink Shared Channel 物理下行链路共享信道PLMN Public Land Mobile Network 公共陆地移动网PPP Point-to-Point Protocol 点对点协议PRACH Physical Random Access Channel 物理随机接入信道PS Packet Switched 分组交换PSTN Public Swithed Telephone Network 公共电话交换网络PUSCH Physical Uplink Shared Channel 物理上行链路共享信道QAM Quadrature Amplitude Modulation 正交幅度调制QE Quality Estimate 质量评估QPSK QuadriPhase Shift Keying 四相移键控QoS Quality of Service 业务质量R-SGW Roaming Signalling Gateway 漫游信令网关RAB Radio access bearer 无线接入承载RACH Random Access Channel 随即接入信道RANAP Radio Access Network Application Part 无线接入网应用部分RAT Radio Access Technology 无线接入技术RL Radio Link 无线链路RLC Radio Link Control 无线链路控制RNC Radio Network Controller 无线网络控制器RNS Radio Network Subsystem 无线网络子系统RNSAP Radio Network Subsystem Application Part 无线网络子系统应用部分RNTI Radio Network Temporary Identity 无线网络临时识别RR Radio Resources 无线资源RRC Radio Resource Control 无线资源控制RSVP Resource ReserVation Protocol 资源保留协议RTCP Real Time Control Protocol 实时控制协议RTP Real Time Protocol 实时协议SA Service Area 服务区域SABP service area broadcast protocol 服务区广播协议SAP Service Access Point 服务接入点SBM Subnetwork Bandwidth Management 子网带宽管理SC TDMA Single Carrier TDMA 单载波时分多址SSCF Service Specific Co-ordination Function 特定业务协调功能213SCCP Signalling Connection Control Part 信令连接控制部分SCH Synchronization Channel 同步信道SCCPCH Secondary Common Control Physical Channel 辅助公共控制物理信道SCP Service Control Point 业务控制点SCTP Simple Control Transmission Protocol 简单控制传输协议SFN System Frame Number 系统帧号SGSN Serving GPRS Support Node GPRS 服务支持节点SIB System Information Block 系统信息块SIM Subscriber Identity Module 用户识别模块SLF Subscrīption Location Function 签约位置功能SM Session Management 会话管理SRNC Serving Radio Network Controller 服务无线网络控制SRNS Serving RNS 服务RNSSS7 Signalling System No. 7 7 号信令系统SSCF Service Specific Co-ordination Function 具体业务协调功能SSCF-NNI Service Specific Coordination Function – Network Node Interface具体业务协调功能网元接口SSCOP Service Specific Connection Oriented Protocol 特定业务面向连接协议.STM Synchronous Transfer Mode 同步传输模式.T-SGW Transport Signalling Gateway 传输信令网关TB Transport Block 传输块TBS Transport Block Set 传输块集TCP Transfer Control Protocol 传输控制协议TDD Time Division Duplex 时分双工TDMA Time Division Multiple Access 时分多址接入TD-SCDMA Time Division Synchronous CDMA 时分同步--码分多址接入TFC Transport Format Combination 传送格式组合TFCI Transport Format Combination Indicator 传送格式组合指示TFCS Transport Format Combination Set 传送格式组合集TFI Transport Format Indicator 传送格式指示TFS Transport Format Set 传送格式集ToA Time of arrival 到达时间TPC Transmit Power Control 发射功率控制TSN Transmission Sequence Number 传输序列号TTI Transmission Time Interval 传输时间间隔UDP User Datagram Protocol 用户数据报协议UE User Equipment 用户设备UL Uplink 上行链路UMTS Universal Mobile Telecommunication System 陆地移动通信系统UpPTS Uplink Pilot Time slot 上行导频时隙UpPCH Uplink Pilot Channel 上行导频信道USCH Up-link Shared Channel 上行共享信道USIM UMTS Subscriber Identity Module UMTS 用户识别模块214UTRAN UMTS Terrestrial Radio Access Network UMTS 陆地无线接入网VC Virtual Circuit 虚电路VLR Visitor Location Register 访问位置寄存器WAP Wireless Application Protocol 无线应用协议WCDMA Wideband Code Division Multiple Access 宽带cdmaWG Working Group 工作组WWW World Wide Web 万维网XRES EXpected user RESponse 期待的用户响应1X EV 1X Evolution 1X增强1X EV-DO 1X Evolution Data Only 1X增强-数据1X EV-DV 1X Evolution Data & Voice 1X增强-数据与语音1xEV-DO 1x evolution Data Optimized 1x演进数据优化24PB 24V Power Board 24V电源板2G BTS 2G Base Station Transceiver 仅支持IS-95空中接口标准的BTS3G BTS 3G Base Station Transceiver 支持IS-2000空中接口标准的BTSAAAA Authentication Authorization Accounting 认证、授权、记帐AAL ATM Adaptation Layer ATM适配层AAL2 ATM Adaptation Layer type 2 ATM 适配层2AAL5 ATM Adaptation Layer type 5 ATM适配层5Abis Interface Abis Interface—the interface of BSC--BTS 基站控制器和基站收发信机间接口ABS Air Break Switch 空气开关AC Asynchronous Capsule 异步包ACB Amplifier Control Board 放大器控制板ACCH Associated Control Channel 随路控制信道ACCM Asynchronous Control Character Map 异步控制字符映射ACIR Adjacent Channel Interference Ratio 相邻信道干扰比ACK Acknowledgement 应答ACLR Adjacent Channel Leakage Power Ratio 相邻信道泄漏功率比ACS Adjacent Channel Selectivity 相邻信道选择性ADF Application Dedicated File 应用专用文件ADN Abbreviated Dialing Numbers 按字母顺序排列的电话号码薄AESA ATM End System Address ATM末端系统地址AGC Automatic Gain Control 自动增益控制AH Authentication Header 鉴权报头AI Acquisition Indicator 捕获指示AICH Acquisition Indicator Channel 捕获指示信道AID Application IDentifier 应用标识符AIUR Air Interface User Rate 空中接口用户速率AK Anonymity key 匿名密钥ALC Automatic Level Control 自动电平控制ALCAP Access Link Control Application Protocol 接入链路控制应用协议ALW Always 一直AM Acknowledged Mode 应答模式AMB Attenuation Matching Board 衰减匹配板AMF Authentication Management Field 鉴权管理域AMP Address Management Protocol 地址管理协议AMR Adaptive Multi Rate 可采纳的多速率AN Access network 接入网络ANID Access Network Identifiers 接入网标识AP Access preamble 接入前缀APB ATM Process Board ATM接入处理板APD AC Power Distribution Module 交流配电模块APDU Application Protocol Data Unit 应用协议数据单元API Application Programming Interface 应用程序接口ARM ARM processor ARM处理器ARP Address Resolution Protocol 地址解析协议ARQ Automatic Repeat Request 自动重发请求AS Access Stratum 接入层ASC Access Service Class 接入业务级A-SGW Access Signaling Gateway 接入信令网关ASN.1 Abstract Syntax Notation One 抽象语法表示1AT Access terminal 接入终端ATM Asynchronous Transfer Mode 异步传输模式ATR Answer To Reset 复位回答ATT Attenuator 衰减器AUC Authentication Center 鉴权中心AUTN Authentication token 鉴权标记AWGN Additive White Gaussian Noise 加性高斯白噪声A Interface A Interface—the interface of BSC-MSC 移动交换中心与基站子系统间接口BB-BDS Backplane of Baseband Digital Subsystem 基带数字子系统背板BBDS Backplane of BDS BDS框的背板BBS BTS Baseband Subsystem 基站基带子系统BCC Bear Channel Connect 承载通路连接BCCH Broadcast Control Channel 广播控制信道BCFE Broadcast Control Functional Entity 广播控制功能实体BCH Broadcast Channel 广播信道BCS BTS Communication Subsystem 基站通信子系统BCSN Backplane of Circuit Switch Network 电路交换网背板BCTC Backplane of Control Center 控制中心背板BDM Baseband Digital Module 基带数字模块BDM1900 1.9G Baseband Digital Module 微基站1.9G基带数字模块BDM800 800M Baseband Digital Module 微基站800M基带数字模块BDS Baseband Digital System 基带数字系统BER Bit Error Ratio 误码率，比特差错率BGPS Backplane of GPS GPS背板BGT Block Guard Time 块守护时间BIC Baseline Implementation CapabilitiesBID Binding Identity 捆绑标识BIM BDS Interface Module BDS系统接口模块B-ISDN ISDN Broadband ISDN 宽带BLER Block Error Rate 误块率BLPA Backplane of LPA LPA框的背板BMC Broadcast/Multicast Control 广播/多址控制BOC Bell Operating Company 贝尔运行公司BPD BDS Power Distribute BDS机柜电源分配模块BPSK Binary Phase Shift Keying 二进制移相键控BPSN Backplane of Packet Switch Network 分组交换网背板BPWS Backplane of PWS PWS框的背板BRFE Backplane of RFE RFE框的背板BRFS Backplane of TRX and BDM/RFM BDM/RFM和TRX的连接背板BS Base Station 基站BSC Base Station Controller 基站控制器BSM Base Station Management 基站管理系统BSP Board Support Package 板支持包BSS Base Station System 基站系统BSSAP Base Station Subsystem Application Part 基站子系统应用部分BTM BTS Test Module BTS告警模块BTRX Backplane of TRX TRX框的背板BTS Base Transceiver System 基站收发信机BUSN Backplane of Universal Switching Network 通用业务网背板BWT Block Waiting Time 块等待时间CCA Certificate Authentication 证书认证CAA Capacity Allocation Acknowledgement 空量分配应答CAMEL Customized Application for Mobile network Enhanced Logic 用于移动网络增强逻辑定制的应用CAP CAMEL Application Part CAMEL应用部分C-APDU Command APDU 命令APDUCB Cell Broadcast 小区广播CBA IPI CMM-Based Appraisals for Internal Process Improvement 用于内部过程改进的基于CMM的评价CBR Constant Bit Rate 固定比特率CBS Cell Broadcast Service 小区广播业务CC Control Channel 控制信道CC/PP Composite Capability/Preference Profiles 合成能力/优先档案CCB Configuration Control Board 配置控制委员会CCBS Completion of Calls to Busy Subscriber 呼叫忙用户的完成CCCH Common Control Channel 公共控制信道CCF Call Control Function 呼叫控制功能CCH Control Channel 控制信道CCK Corporate Control Key 合并控制键CCM Communication Control Module 通信控制模块CCP Compression Control Protocol 压缩控制协议CCPCH Common Control Physical Channel 公共控制物理信道CCTrCH Coded Composite Transport Channel 编码合成传送信道CD Capacity Deallocation/Collision Detection 空量解除分配/冲突检测CDA Capacity Deallocation Acknowledgement 容量解除分配的应答CDF Command Dispatch Functions 命令分发功能CDMA Code Division Multiple Access 码分多址CDR Call Detail Record 呼叫细节记录CDSU Channel/Data Service Unit 信道/数据服务单元CE Channel Element 信道单元CEB Channel Element Board 信道单元板CES Channel Element Subsystem 信道单元子系统CFN Connection Frame Number 连接帧号CGI Common Gateway Interface 公共网关接口CHAP Challenge Handshake Authentication Protocol 质询握手认证协议CHM Channel Processing Module 信道处理模块CHM-1X Channel Processing Module for cdma2000 信道处理模块，采用CSM5000芯片，支持IS-2000空中接口标准CHM-95 Channel Processing Module for IS-95 信道处理模块，采用CSM1.5芯片，支持IS-95空中接口标准CHUB Control HUB 控制流集线器CIB Circuit-bearer Interface Board 电路承载通道接口板CIC Circle Identify Code 地面电路识别号CLA Class 级CLK Clock 时钟CLKD CLOCK Distributor 时钟分发驱动板CLKG CLOCKGenerator 时钟产生CLNP Connectionless network protocol 无连接网络协议CLNS Connectionless network service 无连接网络业务CM Configuration Management 配置管理CMB Combiner 合路器CMF Connection Monitor Function 连接监控功能CMIP Common Management Information Protocol 公共管理信息协议CMIS Common Management Information Service 公共管理信息服务CMM Capability Maturity Model 能力成熟度模型CMU Carnegie-Mellon University 卡耐基&8226;梅隆大学CN Core Network 核心网CNAP Calling Name Presentation 主叫号码显示CNL Co-operative Network List 合作操作网络表COA Care-of-Address 转交地址COCOMO Constructive Cost Model 构造性成本模型CONS Connection-oriented network service 面向连接的网络业务CPCH Common Packet Channel 公共分组信道CPCS Common Part Convergence Sublayer 公共聚合子层部分CPICH Common Pilot Channel 公共导频信道CPM Calling Processing Module 呼叫处理模块CPP Core Processor Part 核心处理部分CPS Common Part Sublayer 公共子层部分CPU Central Processing Unit 中心处理单元CR Change Request 变更请求CRC Cyclic Redundancy Check 循环冗余校验CRF Command Resolve Function 命令解析功能CRNC Controlling Radio Network Controller 主控无线器C-RNTI Cell Radio Network Temporary Identity 小区无线网络临时识别符 CS Circuit Switched 电路交换CSCF Call Server Control Function 呼叫服务器控制功能CSE Camel Service Environment Camel 业务环境CS-GW Circuit Switched Gateway 电路交换网关CSM Cell Site Modem 基站调制解调器CSM5000 Cell Site Modem ASIC 5000 基站调制解调器专用芯片CSU/DSU Channel Service Unit/ Digital Service Unit 信道数据服务单元 CTCH Common Traffic Channel 公共业务信道CTDMA Code Time Division Multiple Access 码时分多址C-TPDU Command TPDU 命令TPDUCW Continuous Wave (unmodulated signal) 连续波（未调制信号）DD_K DBS Kernel Module 数据库核心模块D_M D_Method 数据库关系表方法模块D_S D_Service 数据库维护模块D_V D_View 数据库存取接口模块DAC Digital-to-Analog Converter 数-模转换器DAD Destination Adress 目的地址DAM DECT Authentication Module DECT鉴权模型DBS Database Subsystem 数据库子系统DC Dedicated Control (SAP) 专用控制（SAP）DCA Dynamic Channel Allocation 动态的信道分配DCCH Dedicated Control Channel 专用控制信道DCH Dedicated Channel 专用信道DDI Direct Dial In 直接拨号进DECT Digital Enhanced Cordless Telecommunications 数字增强无绳电信DF Dedicated File 专用文件DHCP Dynamic Host Configuration Protocol 动态的宿主配置协议DHO Diversity Handover 分集切换DIF Data Intermediate Frequency Module 数字中频模块diff-serv Differentiated services 特殊的业务DIU Digital Interface Module 数字（中频）接口模块DL Downlink (Forward Link) 下行链路（前向链路）DLC Data Link Control 数据链路层控制DN Destination Network 目的网络DNS Directory Name Service 目录名称业务DO Data Object 数据对象DoD Department of Defense 美国国防部DOI Domain of Interpretation 解析域DP Defect Prevention 缺陷预防DPC Destination Point Code 目的地信令点编码DPCCH Dedicated Physical Control Channel 专用物理控制信道DPCH Dedicated Physical Channel 专用物理信道DPDCH Dedicated Physical Data Channel 专用物理数据信道DRAC Dynamic Resource Allocation Control 动态的资源分配控制DRC Data Rate Control 数据速率控制DRNC Drift Radio Network Controller 变动的无线网络控制器DRNS Drift RNS 变动的RNSDRX Discontinuous Reception 非连续接收DSA Digital Signature Algorithm 数字签名算法DS-CDMA Direct-Sequence Code Division Multiple Access 直扩－码分多址DSCH Downlink Shared Channel 下行共享信道DSM Data Service Module 数据服务模块DTB Digital Trunk Board 数字中继板DTCH Dedicated Traffic Channel 专用业务信道DTI Digital Trunk Interface Element 数字中继接口单元DTMF Dual Tone Multiple Frequency 多音频拨号音DTX Discontinuous Transmission 非连续传输DUP Duplexer 双工器EECTRA European Committee of Telecommunications Regulatory Affairs 欧洲电信常规事务委员会EDC Error Detection Code byte 检错码字节EDGE Enhanced Data rates for GSM Evolution GSM改进型的增强数据速率EF Elementary File 基本文件EFD Event Forwarding Discriminator 事件前转辨别器E-GGSN Enhanced GGSN 增强的GGSNEGPRS Enhanced GPRS 增强的GPRSEHB （Ethernet HUB Board）以太网共享式HUB板E-HLR Enhanced HLR 增强的HLREIRP Equivalent Isotropic Radiated Power 等效各向内性辐射功率EJB Enterprise Java Beans 企业Java组件模型EMC Electromagnetic Compatibility 电磁兼容性EMF Network Element Mediation Function 网元中介功能EMI Electromagnetic interference 电磁干扰EMS electromagnetic susceptibility 电磁敏感性ESB Ethernet Switch Board 以太网交换板ESD electrostatic discharge 静电放电ESP Encapsulating Security Payload 封装安全载荷ESU Extended subscriber unit 扩展用户单元ETSI European Telecommunications Standards Institute 欧洲电信标准研究院 etu elementary time unit 基本时间单元EUT equipment under test 被试设备FF/R-CCCH Forward / Reverse Common Control Channel 前反向公共控制信道 F/R-DSCH Forward/Reverse Dedicated Signal Channel 前反向专用信令信道F/R-DCCH Forward / Reverse Dedicated Control Channel 前反向专用控制信道 F/R-FCH Forward / Reverse Fundamental Channel 前反向基本信道F/R-PICH Forward / Reverse Pilot Channel 前反向导频信道F/R-SCCH Forward / Reverse Supplemental Code Channel 前反向补充码信道 F/R-SCH Forward / Reverse Supplemental Channel 前反向补充信道FA Foreign Agent 外地代理FAC Foreign Agent Challenge 外地代理质询FACH Forward Access Channel 前向业务信道F-APICH Dedicated Auxiliary Pilot Channel 前向专用辅助导频信道F-ATDPICH Auxiliary Transmit Diversity Pilot Channel 辅助发射分级导频信道 FAUSCH Fast Uplink Signaling Channel 快速上行链路信令信道FAX Facsimile 传真F-BCCH Broadcast Control Channel 前向广播控制信道FBI Feedback Information 反馈信息F-CACH Common Assignment Channel 前向公共指配信道FCI File Control Information 文件控制信息FCP Flow Control Protocol 流量控制协议F-CPCCH Common Power Control Channel 前向公共功率控制信道FCS Frame Check Sequence 帧校验序列FD Full duplex 全双工FDD Frequency Division Duplex 频分双工FDMA Frequency Division Multiple Access 频分多址FE Front End 射频收发前端FEC Forward Error Correction 前向纠错FER Frame Erasure Rate/Frame Error Rate 误帧率FFS For Further Study 为进一步研究Flexible-Rate Flexible Data Rate 灵活的数据速率FLPC Forward Link Power Control 前向链路功率控制FM Fault Management 故障管理FN Frame Number 帧号FNUR Fixed Network User Rate 固定的网络用户速率FP Function Point 功能点F-PCH Paging Channel 前向寻呼信道F-QPCH Quick Paging Channel 前向快速寻呼信道FS Frequency Synthesizer 频率合成器FSB Frequency Synthesizer Board 频率合成板F-SYNCH Sync Channel 前向同步信道FTAM File Transfer Access Maintenance 文件传输存取维护FTB Fiber Transceiver Board 光纤收发板FTC Forward Traffic Channel 前向业务信道F-TDPICH Transmit Diversity Pilot Channel 前向发射分集导频信道 FTP File Transfer Protocol 文件传输协议GGC General Control (SAP) 一般控制（SAP）GCM GPS Control Module GPS控制模块GID1 Group Identifier (level 1) 组识别符（级别1）GID2 Group Identifier (level 2) 组识别符（级别2）GLI GE Line Interface GE线接口GMSC Gateway MSC 网关MSCGMSK Gaussian Minimum Shift Keying 最小高斯移位键控GP Guard Period 保护时间GPCM General Purpose Chip-select Machine 通用片选状态机GPRS General Packet Radio Service 通用分组无线业务GPS GPS Timing Module 定时频率模块GPSR Global Position System Receiver 全球定位系统接收机GPSTM GPS Timing Module GPS定时模块GRE Generic Routing Encapsulation 通用路由封装GSM Globe System for Mobil Communication 全球移动通信系统 GSN GPRS Support Nodes GPRS支持的节点GTP GPRS Tunneling Protocol GPRS隧道传输协议HHA Home Agent 归属代理HCS Hierarchical Cell Structure 分层小区结构H-CSCF Home CSCF 归属CSCSHDLC High-level data link control HDLC协议HDR High Data Rate 高速数据速率HE-VASP Home Environment Value Added Service Provider 归属环境的增值业务提供者 HF Human Factors 人为因素HHO Hard Handover 硬切换HIRS High-speed Interconnect Router Subsystem 高速互连路由子系统HLR Home Location Register 归属位置寄存器HN Home Network 归属网络HO Handover 切换HPA High Power Amplifier 高功放HPLMN Home Public Land Mobile Network 归属公共陆地移动网络HPS Handover Path Switching 切换路径交换HRPD High rate packet data 高速率分组数据HRR Handover Resource Reservation 切换资源预留HSCSD High Speed Circuit Switched Data 高束的电路交换数据HSS Home Subscriber Server 归属用户服务器HTTP Hyper Text Transfer Protocol 超文本传输协议HTTPS Hyper Text Transfer Protocol 安全的超文本传输协议HWB HW-signal process Board HW信号处理板II/O Input/Output 输入/输出IANA Internet Assigned Numbering Authority 互联网地址分配机构I-Block Information Block 信息块IC Intergroup Coordination 组间协调ICC Integrated Circuit Card 集成电路卡ICGW Incoming Call Gateway 呼入网关ID Identifier 识别符IDEAL Initiating-Diagnosing-Establishing-Acting-Leveraging 启动、诊断、建立、行动、推行IE Information Element 信息元素IEC International Electrotechnical Commission 国际电气委员会IETF Internet Engineering Task Force 互联网工程任务组IF Intermediate Frequency 中频IFS Information Field Sizes 信息域大小IFSC Information Field Size for the UICC UICC的信息域大小IFSD Information Field Size for the Terminal 终端的信息域大小IIC Integrated Circuit Interface Circuit 集成电路接口电路IKE Internet Key Exchange 互联网密钥交换IM Intermodulation 互调失真IMA Inverse Multiplexing on ATM ATM上的反向复用IMAB IMA Board IMA/ATM协议处理板IMEI International Mobile Equipment Identity 国际移动设备识别IMGI International mobile group identity 国际移动组织识别IMSI International Mobile Subscriber Identity 国际移动用户识别IMT-2000 International Mobile Telecommunications 2000 国际移动电信2000IMUN International Mobile User Number 国际移动用户号IN Intelligent Network 智能网INAP Intelligent Network Application Part 智能网应用部分INF INFormation field 信息域IP Internet Protocol Internet协议IPB IP Process Board IP处理板IPCP IP Control Protocol IP控制协议IP-M IP Multicast IP多址广播IPSec IP Security IP安全协议ISAKMP Internet Security Association and Key Management Protocol 互联网SA和密钥管理协议ISCP Interference Signal Code Power 干扰信号码功率ISDN Integrated Services Digital Network 集成业务数字网ISM Integrated Software Management 集成软件管理ISO International Standardization Organization 国际标准化组织ISP Internet Service Provider Internet业务提供商ISUP ISDN User Part ISDN用户部分ITU International Telecommunications Union 国际电信联盟IUI International USIM Identifier 国际USIM识别符IWFB InterWorking Function Board IWF(用于手机上网的辅助设备)背板JJ2EE Java 2 Platform Enterprise Edition Java2平台企业板JAR file Java Archive File Java档案文件JD Joint Detection 联合检测JDMK Java Dynamic Management Kit Java动态管理开发包JMS Java Message Service Java消息服务JNDI Java Naming Directory Interface Java命名的目录接口JP Joint Predistortion 联合预失真JPEG Joint Photographic Experts Group 摄影专家联合小组JTAPI Java Telephony Application Programming Interface Java电话的应用程序接口JTS Java Transaction Service Java事务处理服务JVM Java Virtual Machine Java虚拟机Kkbps kilo-bits per second 每秒千比特KP Key Practice 关键实践KPA Key Process Area 关键过程域KSLOC Kilo Source Lines Of Code 千行源代码ksps kilo-symbols per second 每秒千符号LL1 Layer 1 (physical layer) 层1（物理层）L2 Layer 2 (data link layer) 层2（数据链路层）L3 Layer 3 (network layer) 层3（网络层）L3Addr Layer 3 Address 第三层地址LAC Link Access Control 链路接入控制LAI Location Area Identity 位置区域识别LAN Local Area Network 本地网LATA Local Access and Transport Area 本地接入和传送区域LCD Low Constrained Delay 低限制延迟LCF Link Control Function 连接控制功能LCP Link Control Protocol 链路控制协议LCS Location Services 定位业务LE Local Exchange 本地交换机LEN Length 长度LFM Local Fibre Module 近端光模块LLC Logical Link Control 逻辑链路控制LMF 本地管理功能LMT Local Management Terminal 本地维护终端LN Logical Name 逻辑名LNA Low Noise Amplifier 低噪声放大器LOMC Local OMC 本地操作维护中心LOS Line Of Sight 视距LPA Linear Power Amplifier 线性功放LPF Low Pass Filter 低通滤波器LRU Large Replacing Unite 较大可替代单元LSA Localised Service Area 本地化的业务区LSB Least Significant Bit 最低有效比特LTZ Local Time Zone 本地时区LUP Location Update Protocol 位置更新协议MM&C Monitor and Control 监控MA Multiple Access 多址MAC Message authentication code (encryption context) 消息鉴权码（保密） MAF Application Management Features 管理应用功能MAHO Mobile Assisted Handover 移动台协助的切换MAP Mobile Application Part 移动应用部分MC Message Center 短消息中心（SMC）MCC Mobile Country Code 移动国家码MCE Module Control Element 模块控制单元Mcps Mega-chips per second 每秒兆chipsMCU Media Control Unit 媒质控制单元MDIV Diversity 分集接收滤波器MDIV800 Micro Diversity 微基站800M分集接收滤波器MDN Mobile Directory Number 移动用户号码簿号码MDS Multimedia Distribution Service 多媒体分布业务MDUP Duplex 双工器MDUP800 Micro Duplex 微基站800M双工器ME Mobile Equipment 移动设备MEHO Mobile evaluated handover 移动台估计的切换MER Message Error Rate 误消息率MExE Mobile station (application) Execution Environment 移动台（应用）执行环境MF Mediation Function 中介功能MGCF Media Gateway Control Function 媒质关卡控制功能MGCP Media Gateway Control Part 媒质关卡控制部分MGPS Micro GPS 微基站GPSMGT Mobile Global Title 移动全球称号MGW Media GateWay 媒质关卡MHEG Multimedia and Hypermedia Information Coding Expert Group 多媒体和超媒体信息编码专家组MHz Mega Hertz 兆赫兹MIB Management Information Base 管理信息库MIF Management Information Function 管理信息功能MIN Mobile Identification Number 移动台识别码MIP Mobil IP 移动IPMIPS Million Instructions Per Second 每秒百万次指令MIT MO Instance Tree MO实例树MLNA Micro Low Noise Amplifier 低噪声放大器MLNA800 Micro Low Noise Amplifier 微基站800MLNAMM Mobility Management 移动性管理MMI Man Machine Interface 人机接口MML Man Machine Language 人机语言MNC Mobile Network Code 移动网络码MNIC Multi-service Network Interface Card 多功能接口网板MNP Mobile Number Portability 移动号可携带性MO Mobile Originated 移动台启呼MOF MO administration Function MO管理功能MOHO Mobile Originated Handover 移动台启呼的切换MONB MONIOTR BOARD 监控板MOS Mean Opinion Score 平均意见分MPA Micro Power Amplifier 微基站功放MPA800 Micro Power Amplifier 微基站800M功放MPB Main Process Board 主处理板MPC8260 Motorola Power PC 8260 摩拖罗拉的CPUMPC860 Motorola的高性能的通讯处理器MPD Micro-BTS Power Distribution 微基站电源模块MPEG Moving Pictures Experts Group 移动图像专家组MPM MSC Processing Module MSC处理模块MRB Media Resource Board 媒体资源板MRF Media Resource Function 媒质资源功能MS Mobile Station 移动台MSB Most Significant Bit 最高有效比特MSC Mobile Switching Center 移动交换中心MSE MExE Service Environment MexE业务环境MSG Management Steering Group 管理指导组MSID Mobile Station Identifier 移动台识别符MSIN Mobile Station Identification Number 移动台识别号码MSM Message Switching Module 消息交换模块MSP Multiple Subscriber Profile 多用户档案MSU Main subscriber unit 主用户单元MT Mobile Termination 面向终端的移动MTBF 平均无故障时间间隔MTP Message Transfer Part 消息传递部分MTP3-B Message Transfer Part level 3 消息传递部分级别3MTRX800 Micro Transmitter & Receiver 微基站800M收发信机 MTSI Master To Slave Interface 主备用接口MUI Mobile User Identifier 移动用户识别符NNAD Node Address byte 节点地址字节NAI Network Access Identifier 网络接入标识NAS Non-Access Stratum 非接入层NBAPNBAP Node B Application Part Node B应用部分NCK Network Control Key 网络控制键NCM Network Control Module 网络控制模块NDC National Destination Code 国际目的码NDUB Network Determined User Busy 网络用户忙NE Network Element 网元NEF Network Element Function 网元功能NEHO Network evaluated handover 网络估计切换NIM Network Interface Module 网络接口模块NITZ Network Identity and Time Zone 网络识别和时区NMC Network Management Center 网管中心NMSI National Mobile Station Identifier 国家移动台识别符NNI Network-Node Interface 网络－节点接口NO Network Operator 网络运营者NP Network Performance 网络性能NPA Numbering Plan Area 编号计划地区NPI Numbering Plan Identifier 编号计划识别符NRT Non-Real Time 非实时NSAP Network Service Access Point 网络业务接入点NSCK Network Subset Control Key 网络子集控制键NSDU Network service data unit 网络业务数据单元NSS Network Sub System 网络子系统NT Non Transparent 非透明的Nt Notification (SAP) 通知（SAP）NUI National User / USIM Identifier 国家的用户/USIM识别符 NW Network 网络OO&M Operations and Maintenance 运行和维护。

1.Make a choice （共十题 每题1分）10p(1).Which of the following dispersion (色散)dose not exist in single-mode optical fiber? （ D ）A .material （材料）dispersion B.waveguide （波导） dispersionC.polarization-mode （偏振）dispersionD.intermodal （联合） dispersion(2).The unit （单位）of the fiber attenuation coefficient （衰减系数）is (C)A. dBB. dBmC. dB/kmD. dBm/km(3).the bands of Optical fiber communication is (B)A.0.01um-0.39umB. 0.8um-2.0umC.0.39um-0.79umD.100um-1000um(4).If the optical input power of a Optical amplifier is 10mW ，and the optical output power is 100mW as well ,then its output gain level is (A)A.10dBB.20dBC.30dBD.40dB(5)In order to make sure of the system BER （比特误差率） conditions , if the minimum optical input power of the receiver is 1 uW, the sensitivity of the receiver must be (A)A.－30dBmB.－40dBmC.－20dBmD.－43dBm(6)The principal （主要）light sources used for fiber optical communications applications are ：（D ）A.OA 、LDB.PIN 、APDC.PD 、LEDD.LD 、LED(7)laser （激光） action is the result of three key process ，which one of the following is not be included ？（D ）A.photon absorption （光子吸收）B.spontaneous emission （自发发射）C.stimulated emission （受激发射）pound radiation （复合发射）(8) A single mode fiber usually has a core diameter （芯径）of A.A. 10mB. 62.5nmC. 125nmD. 50mm (9)To make sure that the APD photo-detector works properly, a sufficiently D is applied across the p-n junction.A. high forward-bias voltage （高的前置偏压）B. low forward-bias voltageC. low reverse-bias voltage （低的反相偏压）D. high reverse-bias voltage(10) When DFA fiber amplifier uses as light Repeaters （中继器）, its main effect is B.A. amplifying and regenerating the signalB. regenerating the signalC. amplifying the signalD. reducing the signal noise(11) In graded-index optical fiber, the numerical aperture （数值孔径） NA can be expressed as C. A. 21n n - B. ∆2a C. ∆2n 1 D. 21n n a -(12) In practical SMFs, the core diameter is just below the cutoff （截止） of the first higher-order （高阶）mode; that is, for V slightly A.A. <2.4B. > 2.4C. =3D. =3.5(13) It is well known that the total dispersion in the single-mode regime is composed of two components: C.A. mode-partition noise （电流分配噪声）, inter- symbol InterferenceB. frequency chirp, modal dispersionC. material dispersion, waveguide dispersionD. modal dispersion, waveguide dispersion(14)At present, erbium doped （涂饵的）fiber amplifier’s maximum small signal gain （小信号增益）is around A.A. 40 dBB. 30 dBC. 20 dBD. 10 dB(15)Which of the following doesn’t belong to passive optical components （无源光学组件）BA. Directional coupler（定向耦合器）B. Semiconductor laser（半导体激光）C. Optical fiber connector（光纤连接器）D. Optical attenuator（光学衰减器）(16) The A mode has no cut off（截止）and ceases（停止）to exist only when the core diameter （芯径）is zero.A. HE11B. TE01C. TM01D. EH11(17)When the phase difference（相位差）is an integral multiple（整数倍）of A, the two modeswill beat and the input polarization（偏振）state will be reproduced.A. 2πB. πC. 1800D. π/2(18)which one of the following model can transmit in the single-mode optical fiber ?(A)A.HE11B. TE01C. TM01D. EH112. Write the full name of the following acronym（共十题每题1分）10p(1)DCF: dispersion compensating fiber（色散补偿光纤）(2)CNR: carrier to noise ratio（载噪比）(3)SRS: Stimulated Raman Scattering（受激的拉曼色散）(4)SOA: Semiconductor optical amplifier（半导体激光放大器）(5)NA: numerical aperture（数值孔径）(6)PON: passive optical network（无源光网络）(7)SLM: single longitudinal mode（单纵向模式）(8)NEP: noise-equivalent power(噪声等效功率)(9)DSF: dispersion shift fiber（色散转移光纤）(10)SONET: synchronous optical network（同步光网络）(11)A TM: asynchronous transfer mode（异步传输模式）(12)ISDN: integrated services digital network（综合业务数字网）(13)WDM: wavelength-division multiplexing(波分多路复用)(14)SDH: Synchronous digital hierarchy(同步数据系列)(15)TLLM: transmission-line laser model(传输线激光模式)(16)ONSL: optical network simulation layer（光网络模拟层）(17)OVPO: outside vapor-phase oxidation（外气相沉积法）(18)V AD: vapor-phase axial deposition(汽相轴向沉积)(19)CDMA: code-division multiple access(码分多址)(20)FDM: frequency-division multiplexing（频分复用）(21)DSP: digital signal processing（数字信号处理）(22)MCVD: modified chemical vapor deposition（修正的化学汽相沉积）(23)EDFA: erbium-doped fiber amplifier(惨饵光纤放大器)(24)FDDI: fiber distributed data interface(光纤分布式数据接口)(25)SIOF: step index optical fiber(阶跃指数光纤)(26)GIOF: graded index optical fiber(渐变性光纤)(27)SQW: single quantum-well（单量子井）(28)ARQ: automatic reapt request(自动重发请求)(29)FEC: forward error correction（前向纠错）3. Filling blanks(共20空每空1分) 20p(1) According the mode which propagate（传播）in the fiber, the fiber can be divided into (single mode) fiber) and (multimode) fiber.(2) The most common misalignment（非线性）occurring in practice, which also causes the greatest power loss, is (axial displacement轴向移位).(3) The electromagnetic energy（电磁能）of a guided mode is carried partly in the (core) and partly in the (cladding包层).(4)The basic attenuation mechanisms（衰减机制）in a fiber are (absorption吸收), (scattering散射) and (radiative losses辐射损耗) of the optical waveguide.(5) The two main optical amplifier types can be classified as (SOAs半导体激光放大器) and (DFAs).(6) Networks are traditionally divided into: (LANs局域网), (MANs城域网),(W ANs广域网).(7)The principal light sources used for fiber optic communications applications are (ILDs注入型激光二极管) and (LEDs发光二级管) .(8) The dominant noise generated in an optical amplifier is (ASE).(9) The two most common samples of these spontaneous fluctuations（波动）are (shot noise) and (thermal noise热噪声).(10)According to the refractive index（折射率）of the core, the fiber can be divided into (step-index) fiber and (graded-index) fiber .(11)The total dispersion in single-mode fibers consists mainly of (material) and (waveguide) dispersion.(12) The most meaningful criterion（标准）for measuring the performance of a digital communication system is the (average error probability平均概率误差). In an analog system the fidelity criterion is usually specified in terms of a (peak signal-to-noise ratio).(13) The simplest transmission link is a (point-to-point line) that has a transmitter on one end an a receiver on the other.(14)The commonly used materials for fiber lasers are (erbium) and (neodymium).(15)Absorption is related to the fiber material, whereas scattering is associated both with the (fiber material) and with (structural imperfections) in the optical waveguide.(16)The two basic LED configurations being used for fiber optics are (surface emitters) and (edge emitters).(17) The basic schemes for improving the reliability are (ARQ自动重发请求) and (FEC前向纠错).4. Give a brief description of following terms and questions（共5题每题3分）15p (1) Briefly describe the key system features of WDM.波分复用1) capacity upgrade（容量升级）2) transparency （透明度）3) wavelength routing（波长选路）4) wavelength switching（波长转换）5) the connectors used to join individual fiber cables to each other and to the source anddetector(2) Briefly describe there major goals of SDH.同步数据系列1) Avoid the problems of PDH2) Achieve higher bit rates3) Better means for operation, administration and Maintenance(3) List at least three advantages of SOA半导体激光放大器.1) Small size, and easy to be integrated with semiconductor circuits.2) Fabrication（制造）is simple and with low power consumption（功耗）, long life-span and low cost.3) Gain response is very quick and well suited for switching and signal processing in optical networks application.4) Can amplify optical signal and process signal in the same time such as switch, so can be used in wavelength converting and optical switch.(4) List more than three disadvantages of SOA.1) The coupling loss with optical fiber is too large2) Sensitive to polarization3) Noise figure is high(~8 dB)4) crosstalk串音干扰5) Easy to be affected by temperature, low stability(5) Stimulated Emissions受激发射If a photon（光子）of energy hv12 impinges on（撞击）the system while the electron is still in its excited state, the electron is immediately stimulated to drop to the ground state and give off a photon of energy hv12.(6)Dynamic rangeSystem dynamic range is the maximum optical power range to which any detector must be able to respond.(7) What conditions should be met to achieve a high signal-to-noise ratio?1) The photodetector（光电探测器）must have a high quantum efficiency（量子效率）to generate a large signal power.2) The photodetector and amplifier noises should be kept as low as possible.(8) Please write the three basic categories（类别）of degradation of light sources1) internal damage2) ohmic contact degradation3) damage to the facets of laser diodes（激光二极管）(9)List the three factors largely determining the frequency response of an LED1) the doping level（掺杂度）in the active region2) the injected carrier lifetime Ti in the recombination region3) the parasitic capacitance(寄生电容) of the LED.(10)Write the three basic types of two-level binary line codes that can be used for optical fiber transmission links.1) non-return-to-zero (NRZ) format2) return-to-zero (RZ) format3) phase-encoded (PE) format(11) Please write the three different mechanisms causing absorption briefly1) Absorption by atomic defects （原子缺陷） in the glass composition.2) Extrinsic （非固有的） absorption by impurity atoms in the glass material.3) Intrinsic absorption by the basic constituent atoms of the fiber material.(12) The disadvantage of Raman amplifierNeed large output power pump laser. As Raman Scattering, the energy is transferred from high frequency to low frequency. Cross talk will affect signal.5. Figure （共1题 每题5分）5p（1）Please draw the basic step for an automatic-repeat-request (ARQ) error-correction scheme. Solution:（ARQ纠错机制）(2)Please draw out the basic elements of the optical receiver.(5p)（光接收器）Solution:(3)Please draw out the basic elements of an analog link and the major noise contributions. Solution:（模拟链路及噪声源）光发送机电模拟输入信号谐波失真互调失真RIN激光削波光纤信道模式失真损耗GVD 光放大器ASE 噪声光检测器散弹噪声热噪声放大器噪声APD 倍增噪声电模拟输出到RF 接收机(3) consider the encoder shown in Fig.1that changes NRZ data into a PSK ing this encoder,draw the NRZ and PSK waveforms for the data sequence 0001011101001101.clock/2PSK dataNRZ datafrequency Afrequency BFig.1Solution:6. Calculation Problems(共3-4题，统计40分) 40p(1) A wave is specified by 8cos 2(20.8)y t z π=-,where y is expressed in micrometers and the propagation constant （传播常数） is given in 1m μ-.Find (a) the amplitude,(b) the wavelength,(c) the angular frequency （角频率）, and (d) the displacement at time 0t = and 4z m μ=. Solution:The general form is:y = (amplitude) cos()cos[2(/)]t kz A vt z ωπλ-=-.Therefore(a) amplitude 8m μ=(b) wavelength: 11/0.8m λμ-= so that 1.25m λμ=(c) 22(2)4v ωπππ===(d) At 0t = and 4z m μ= we have 18cos[2(0.8)(4)]8cos[2( 3.2)] 2.472y m m πμμπ-=-=-=(2) A certain optical fiber has an attenuation of 0.6dB/km at 1300nm and 0.3dB/km at 1550nm.Suppose the following two optical signals are launched simultaneously into the fiber: an optical power of 150W μ at 1300nm and an optical power of 100W μ at 1550nm. What are the Solution:power levels in W μof these two signals at (a) 8km and (b) 20km?Since the attenuations are given in dB/km, first find the power levels in dBm for100W μ and 150W μ. These are, respectively,P(100W μ) = 10 log (100 W μ/1.0 mW) = 10 log (0.10) = - 10.0 dBmP(150W μ) = 10 log (150 W μ/1.0 mW) = 10 log (0.15) = - 8.24 dBm(a) At 8 km we have the following power levels:P 1300(8 km) = - 8.2 dBm – (0.6 dB/km)(8 km) = - 13.0 dBm = 50W μP 1550(8 km) = - 10.0 dBm – (0.3 dB/km)(8 km) = - 12.4 dBm = 57.5W μ(b) At 20 km we have the following power levels:P 1300(20 km) = - 8.2 dBm – (0.6 dB/km)(20 km) = - 20.2 dBm = 9.55W μP 1550(20 km) = - 10.0 dBm – (0.3 dB/km)(20 km) = - 16.0 dBm = 25.1W μ(3) A double-heterojunction （异质结） InGaAsP LED emitting at a peak wavelength of 1310nm has radiative and nonradiative recombination times of 25 and 90ns, respectively. The drive current is 35mA.(a) Find the internal quantum efficiency and the internal power level.(b) If the refractive index （折射率） of the light source material is n=3.5, find the power emitted from the device.Solution: (a) From Eq. int 11/r nr rτητττ==+, the internal quantum efficiency is int 10.783125/90η==+， and from Eq.int intint I hcI p hv q q ηηλ== the internal power level is int (35)(0.783)26(1310)hc mA p mW q nm ==(b) From Eq.int e int 2p (1)n t p P n n η==+, 21260.373.5(3.51)P mW mW ==+ (4) An LED with a circular emitting area of radius 20m μ has a lambertian emission pattern with a 1002()W cm sr ∙axial radiance at a 100mA drive current. How much optical power can be coupled into a step-index fiber having a 100m μ core diameter and NA=0.22? How much optical power can be coupled from this source into a 50m μ core-diameter graded-index fiber having 12.0, 1.48n α== and 0.01∆=?Solution:The source radius （半径） is less than the fiber radius,so Eq. 222222,1()2LED step s o s o P r B NA r B n ππ==∆ holds: 22223222,()(210)(100/)(0.22)191LED step s o P r B NA cm W cm W ππμ-==⨯= From Eq. 222,122[1()]2s LED graded s o r P r B n απαα=∆-+ 232222,122(210)(100/)(1.48)(0.01)[1()]15925LED graded P cm W cm W πμ-=⨯-=(5)Suppose an avalanche photodiode hasthe following parameters ：1/231,1,0.85,,10L D L I nA I nA F M R η=====Ω, and 1B kHz=.Consider a sinusoidally(正弦） varying 850nm signal, which has a modulation index m=0.85 and an average power level 050P dBm =-, to fall on the detector at room temperature. At what value of M does the maximum signal-to-noise ratio occur?Solution: Using Eq.2222()()24/p P D L B Li M S N q I I M F M B qI B k TB R <>=+++ we have 22005/2001()22()24/D L B LR P m M S N qB R P I M qI B k TB R =+++ 162235/2191.215102.17610 1.65610M M ---⨯=⨯+⨯ The value of M for maximum S/N is found from Eq.224/()x L B L opt P D qI k T R M xq I I ++=+, with x = 0.5:Moptimum = 62.1.(6)An LED operating at 1300 nm injects 25W μ of optical power into a fiber. If the attenuation （衰减） between the LED and the photodetector （光电探测器） is 40 dB and the photodetector quantum efficiency （量子效率） is 0.65, what is the probability that fewer than 5 electronhole pairs （电子空穴对） will be generated at the detector in a 1-ns interval ?Solution: From ⎰==τηη0)(hvN hv E dt t P ,the average number of electron-hole pairs generated in a time t is 6.10)/103)(106256.6()103.1)(101)(1025(65.0/8346910=⨯⨯⨯⨯⨯===----s m Js m s W hc Pt h E N ληνη Then,from Eq.(7-2)%505.0120133822!5)6.10(!)(6.106.105=====---e e n e N n P N n(7) An engineer has the following components available:(a) GaAlAs laser diode operating at 850 nm and capable of coupling 1 mW (0 dBm) into a fiber. (b) Ten sections of cable each of which is 500 m long, as a 4-dB/km attenuation, and hasconnectors on both ends.(c) Connector loss of 2dB/connector.(d) A pin photodiode receiver.(e) An avalanche photodiode receiver.Using these components, the engineer wishes to construct a 5-km link operating at 20 Mb/s. If the sensitivities of the pin and APD receivers are -45 and -56 dBm, respectively, which receiver should be used if a 6-dB system operating margin is required?Solution:(a)Use margin 2system L l P P P f C R S T ++=-=α，to analyze the link power budget.(a) For the pin photodiode,with 11 jointsdB L km dB dB dBm dBm insystemm L l P P P f C R S T 6)/4()2(11)45(0arg )(11++=--=++=-=αWhich gives L=4.25km. the teansmission distance cannot be met with these components. (b)For the APDdB L km dB dB dBm dBm 6)/4()2(11)56(0++=--Which gives L=7.0km. the transmission distance can be met with these components.(8) Suppose we want to frequency-division multiplex 60 FM signals. If 30 of these signals have a per-channel modulation index i m =3 percent and the other 30 signals have i m =4 percent, find the optical modulation index （调制指数） of the laser.Solution:The total optical modulation index is%4.27])04(.30)03(.30[][2/1222/12=+==∑ii m m(9) An optical transmission system is constrained to have 500-GHz channel spacings. How many wavelength channels can be utilized in the 1536-to-1556-nm spectral band （频谱带）? Solution: In terms of wavelength,at acentral wavelength of 1546nm a 500-GHz channel spacing isnm s sm nm f c 410500/103)1546(19822=⨯⨯=∆=∆-λλ The number of wavelength channels fitting into the 1536-to-1556 spectral band then is 54/)15361556(=-=nm nm N(10) The output saturation （饱和） power sat out P , is defined as the amplifier output power for which the amplifier gain G is reduced by 3 dB (a factor of 2) from its unsaturated value 0G . Assuming 0G >>1, show that in terms of the amplifier saturation power sat amp P ,, the output saturation power issat amp sat out P G G P ,00,)1(2ln -=Solution: Let 2/0G G = and 0,/22/G P P P sat out out in ==.then Eq.(11-15) yields2ln 212,,00satout sat amp P P G G += Solving for s a t out P , and with 10>>G ,we havesat amp sat amp sat amp sat out P P P G G P ,..00,693.0)2(ln 22ln =≈-=。

3GPP LTE OFDMA和SC-FDMA多址接入方案的研究摘要LTE在下行采用正交频分复用多址接入(OFDMA)技术，因为OFDMA具有较高的峰均功率比（PAPR）。

这对发射机功放的线性度要求较高，使得发射机成本明显增加;其次OFDMA要求子载波严格正交，因此它对频率偏移会比较敏感。

单载波频分多址接入技术(SC-FDMA)是OFDMA技术的改进,相较于OFDMA，两者的系统结构和性能比较相似，但它具有低PAPR 特性与对频率偏移不敏感的优势，并同样能在接收端应用频域均衡技术来有效对抗多径衰落的影响。

因此3GPP决定在LTE上行采用SC-FDMA技术作为多址接入方式。

本文将给出一个关于正交频分多址(OFDMA)和单载波频分多址(SC-FDMA)的概述,并对两者进行比较，利用Matlab对二者的PAPR进行了仿真，验证了SC-FDMA比OFDMA有较低的PAPR。

此外，还研究了不同均衡方式和不同信道模型下的SC-FDMA的误码性能并得出相关结论。

关键词：OFDMA；SC-FDMA；峰均功率比Study of Multiple Access Schemes in 3GPP LTEOFDMA vs. SC-FDMAABSTRACTWith the continuously developing of wireless communication technique and the users' high demands to communication, 3GPP proposed LTE (Long Term Evolution) standard as the transition from3G to 4G while LTE downlink adopts orthogonal-frequency-division-multiplexing access (OFDMA) technique, OFDMA is not suitable for LTE uplink because of its disadvantages. The first main disadvantage is that OFDM signal's peak-to-average power ratio (PAPR) is very high, which decreases the power efficiency of mobile terminal and proposes higher demands on the linearity of transmitter power amplifier, which will increase the cost of transmitter. Secondly, OFDMA requires strict orthogonality among sub-carriers,Which makes it sensitive to frequency offset. Single-carrier frequency division multiple access (SC-FDMA) technique is the improvability of OFDMA techniques. Possessing the similar structure and performance as OFDMA, SC-FDMA shows the advantage of lower PAPR feature and being not sensitive to frequency offset. Besides,SC-FDMA can adopt frequency equalization technique at the receiver to overcome the influence of multi-path fading. So, 3GPP decided to adopt SC-FDMA, to be the multiple access technique in the LTE uplink.In this paper, we give an overview of both OFDMA and SC-FDMA, then draw a comparison and analysis with ing MATLAB on a combination of PAPR, verify that SC-FDMA had lower PAPR than OFDMA.we also studied different ways of balancing and SC-FDMA BER performance under different channel models and draw relevant conclusions.Key words：OFDMA；SC-FDMA；PAPR目录1 前言 (1)1.1 3GPP LTE的发展概况 (1)1.2本文的研究内容和篇章结构 (1)2 OFDM技术简介及原理 (2)2.1 OFDM技术简介 (2)2.2 OFDM系统的算法和工作原理 (2)3. OFDMA技术 (3)3.1 OFDMA技术简介 (3)3.2 OFDMA的优缺点 (3)4 SC-FDMA技术 (4)4.1 SC-FDMA的基本原理 (4)4.2 SC-FDMA子载波映射方式 (5)4.3 SC-FDMA的实现形式 (6)4.3.1.时域信号产生 (6)4.3.2 频域信号的产生 (6)4.3.3 两种实现形式的比较 (7)5 SC-FDMA与OFDMA的比较 (7)5.1 峰值平均功率比 (8)5.2仿真结果 (9)5.2.1不同调制方式下OFDMA和IFDMA系统PAPR性能仿真 (9)5.2.2不同子载波映射方式下的SC-FDMA系统PAPR性能仿真 (10)6 结论 (11)参考文献 (11)1 前言1.1 3GPP LTE的发展概况第一代移动通信系统起始于19世纪70年代，它采用频分多址(FDMA)技术的模拟移动通信系统，重要缺点是频带利用率低、保密性差、终端体积大且只能供给语音业务。