3G移动通信技术研究

武汉工业学院毕业论文论文题目:3G移动通信技术研究姓名王杰学号071203122院系数理科学系专业电子信息科学与技术指导老师李丹2011年6月5日目录摘要......................................................................................................................................IAbstract..............................................................................................................................II1．绪论.................................................................................................................................11.13G的起源.............................................................................................................11.23G的不同的标准.................................................................................................11.33G的基本特点.....................................................................................................21.43G技术的应用.....................................................................................................32．3G主流技术标准之CDMA2000.......................................................................................52.1CDMA2000概述.......................................................................................................52.2CDMA2000的技术特点...........................................................................................62.3CDMA2000的应用现状及发展探讨.......................................................................83.3G主流技术标准之WCDMA...........................................................................................103.1WCDMA概述...........................................................................................................103.2WCDMA的技术特点...............................................................................................103.3WCDMA的应用现状及发展探讨...........................................................................124.3G主流技术标准之TD-SCDMA.....................................................................................144.1TD-SCDMA概述.....................................................................................................144.2TD-SCDMA的技术特点.........................................................................................154.3TD-SCDMA的应用现状及发展探讨.....................................................................175.3种主流技术标准的比较............................................................................................195.1三种标准的主要优劣势分析..............................................................................195.2三种标准的各种性能的比较..............................................................................205.3运用不同标准的三大运营商优劣势分析...........................................................226.中国3G时代的现状和发展前景.................................................................................256.13G服务的市场“围城”..................................................................................256.23G带来挑战的应对策略...................................................................................256.3中国3G的发展前景............................................................................................26谢辞...................................................................................................................................28参考文献.............................................................................................................................29I摘要第三代移动通信技术一3G技术是将无线通信与国际互联网等多媒体通信结合的新一代移动通信系统。第三代移动通信系统已在我国商业化运营，3G网络为各种业务提供了更多的资源，3G时代的移动业务不仅对网络，同时也对终端提出了更高的要求，3G终端必须具备更快更强的通信和处理能力，同时还要更加人性化，更具扩展性。本文首先简要的介绍了有关3G方面的技术术语、3G的发展历程、现状，以及相关的产业链等。接着详细介绍了3G中的三大主流标准（CDMA2000、WCDMA、TD-SCDMA），以及主要特点，主要优点等，并且相互比较了它们之间的优点以及不足。同时又完整的介绍了TD-SCDMA，WCDMA，CDMA2000三种不同的3G移动通信国际主流标准，对这三种技术的特点作了分析和比较，论述了适合国情的自主产权的TD-SCDMA系统特点,最后介绍了3G移动通信的发展趋势及面临的挑战。关键词：第三代移动通信；CDMA2000；WCDMA；TD-SCDMAIIAbstractThethirdgenerationmobilecommunicationtechnology—3Gtechnologyisthenewgenerationmobilecommunicationssystem,whichcombineswirelesscommunicationswiththeinternet,multimediacommunications.Thirdgenerationmobilecommunicationsystemhasbeeninourcommercialoperation,3Gnetworkforavarietyofbusinesseswithmoreresources,3Gmobileservicetimesnotonlyforthenetwork,butalsoputforwardhigher-endrequirements,3Gterminalsmustbeaccompaniedbymorerapidcommunicationandprocessingcapabilities,whilealsomorehumaneandmorescalability.Thispaperbrieflyintroducedthe3G'stechnicalterminology,3Gcourseofdevelop-ment,thestatusquo,aswellasrelatedindustries,suchaschain.Thendescribedindetailinthe3Gofthethreemainstreamstandards(CDMA2000,WCDMA,TD-SCDMA),andthemaincharacteristicsofthemajoradvantages,andtheirmutualcomparisonbetweentheadvantagesandinadequate.ThepaperalsocompleteintroductionTD-SCDMA,WCDMA,CDMA2000threekindofdifferent3Gmobilecommunicationinternationalmainstreamstandard.Themainstreamtechniquesinthethirdgenerationofmobilecommunicationvariouskindofcodedivisionmultipleaccessareanalyzedandcomparedindetail.ThedevelopmentandtechniquesrouteofthethirdgenerationofmobilecommunicationhasbeenproposedsuitabletoChinesecondition.Atlast，thepaperintroducesthedevelopmentandchallengeofthe3Gmobilecommunicationtechnology。Keyword:3G；CDMA2000；WCDMA；TD-SC