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1、上海交通大学工程硕士学位论文摘要的有效性与可行性。经测试结果表明，该策略应用在公网上后，可以提升通话质量（C/I）约5dB，平均降低了掉话率约0.4%，有效提升用户感知，在其他指标基本不变或有所提升的情况下，降低掉话率和提升语音质量的指标；应用在磁悬浮专网后，可以提升通话质量（C/I）约6dB，提高了约4.3%的接通率和6%覆盖率，降低了约18%的掉话率，有效提升用户感知，在其他指标基本不变或有所提升的情况下，使掉话率和语音质量的指标得到改善。本文针对不同移动速度终端的混合场景的网络优化方法，除了能够有效的提高网络通信质量和降低掉话风
2、险的效果，并且部分优化方法还可以应用到诸如城市轨道交通、室分外泄等场景中，因此本课题的研究成果具有一定推广价值。关键词：TD，移动通信，网络优化，专网公网，速度敏感第II页万方数据上海交通大学工程硕士学位论文ABSTRACTTDhandoveroptimizationtechnologybasedonthemobileterminalspeedABSTRACTThehighspeedrailways,maglevtrainsandothermodesoftransportionhavebrokentheoriginalspeedlim
3、itofthemobileterminal.Highlydevelopedurbanizationpresentsunprecedentedchallengestothewirelesstelecommunication.Itremainsanurgentproblemtoresolve,forTD-SCDMA,asoneofthe3Gtelecommunicationstandard,whosenumberofusershasexceeded60million.Butthecurrentwaysofoptimizationunabl
4、etosatisfydifferentspeedsoftermainals.SoitbecomesessentialtostudyShanghaiwirelessnetworkoptimizationtechnology.Startingfromanalysingthescenefeatures,weprovidedifferentmethodsfortheprivatenetworkfromtheonesforthepublicnetwork.Totheprivateone,suchasShanghaiMaglevprivatene
5、twork,thehighestpriorityistoisolatetwonetworksandthenimprovethereliabilityforthehigh-speedmobileterminals.Inthispaper,ifsiteselectioncannotmeettherequirement,the"cellmerge"technologyisintroducedtoreducetheDopplereffect;Whiletothepublicone,"Speedsensitiveswitch"algorithm
6、istodistinguishhighorlowspeedterminals,andthenaccordinglyprovidepersonalizedservice.Toverifytheeffectsofthestrategyandfeasibility,ShanghaiMaglev,XiayuanGrandHotelandNorth-SouthElevatedareselectedasexperimentalunits.Theresultsshowthatoncethepolicyisappliedtothepublicnetw
7、ork,itimprovesquality(C/I)approximatelyby5dB,andreducesdropcallratebyabout0.4%,whicheffectivelyenhancestheuserperception.AsappliestoShanghaiMaglevprivatenetwork,itimprovesquality(C/I)approximatelyby6dB,andincreasedconnectionratebyabout4.3%for,coveragerateby6%,andreduced
8、thedropcallrateabout18%.第III页万方数据上海交通大学工程硕士学位论文ABSTRACTAsanideaofnetworkoptimizationfordifferentspeedsofmobile
