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学号0909131038毕业设计课题铜陵市区TD-SCDMA无线网络优化学生姓名马志稳系别电气工程系专业班级09通信工程指导教师游青松二〇一三年五月铜陵学院毕业设计I铜陵市区TD-SCDMA无线网络优化摘要TD-SCDMA是中国自主研发的3G制式。随着TD-SCDMA技术的快速发展和TD-SCDMA网络在大部分城市的商用，同时随着TD-SCDMA用户规模增大，为了提高网络质量、扩大基站覆盖范围，达到投资成本的最优，网络优化工作越来越重要。本文结合铜陵移动TD-SCDMA网络（华为设备）对TD-SCDMA网络优化工作进行分析。论文首先阐述了TD-SCDMA系统的关键技术、物理层过程以及信令流程，其次介绍了TD-SCDMA系统的无线网络优化的流程和常见异常问题（弱覆盖、越区覆盖、掉话、未接通等）的优化方法以及关键性KPI指标，并简单介绍了一下我们所用的路测软件，最后结合自己的实习经历，通过对荆门市区TD-SCDMA系统无线网络优化工程中遇到的具体问题案例进行理论分析，提出了有效的解决方案。本课题主要意义在于指出了无线网络优化在移动通信系统日常维护中的重要性和系统性，并验证了网络优化对铜陵市区无线网络的性能改善。关键词：TD-SCDMA；网络优化；路测软件陈春光：荆门市区TD-SCDMA无线网络优化IITD-SCDMAwirelessnetworkoptimizationintheTonglingurbanareaAbstractTD-SCDMAisChina'sself-developed3Gstandard.WiththerapiddevelopmentofTD-SCDMAtechnologyandcommercialTD-SCDMAnetworkinmostcities,atthesametimescaleasTD-SCDMAusersincreasing,inordertoimprovenetworkquality,expandingthecoverageofbasestationtoachievetheoptimumofthecostofinvestment,networkoptimizationismoreandmoreimportant.ThispaperdescribedTD-SCDMAnetwork(HuaweiDevice)ontheTD-SCDMAnetworkoptimizationanalysisbasingontheTonglingmobile.Firstly,thepaperdescribedthekeytechnologiesofTD-SCDMAsystem,theprocessofthephysicallayerandsignalingprocesses.Secondly,itintroducedtheTD-SCDMAsystem,wirelessnetworkoptimizationprocessesandcommonabnormalproblem(weakcoverage,moreareacoverage,dropcall,outgoingcall)ofoptimizationmethodsaswellascriticalKPIsandintroducedthatweusedrivetestsoftware.Finally,inconjunctionwithmyinternshipexperience,throughthewirelessnetworkonthetheTonglingurbanTD-SCDMAsystemtooptimizethespecificproblemsencounteredintheprojectcase,thetheoreticalanalysis,effectivesolutions.Themainsignificanceofthistopicisthatthewirelessnetworkoptimizationisimportanceandsystematicinroutinemaintenanceofthemobilecommunicationsystem,andverifythatthenetworkoptimizationistoimprovetheTonglingurbanwirelessnetworkperformance.Keywords：TD-SCDMA;Networkoptimization;Drivetestsoftware铜陵学院毕业设计III目录第一章绪论...................................................................................................................................11.1课题背景及研究意义..........................................................................................................11.1.1课题背景.......................................................................................................................11.1.2研究意义.......................................................................................................................11.2TD-SCDMA简介.................................................................................................................11.3TD-SCDMA的关键技术.....................................................................................................2第二章TD-SCDMA系统的物理层过程及信令流程................................................................32.1物理层过程..........................................................................................................................32.2信令流程..............................................................................................................................4第三章TD-SCDMA网络优化分析及其关键性KPI指标.......................................................63.1TD-SCDMA网络优化分析.................................................................................................63.1.1网络优化........................................................................................................................63.1.2TD-SCDMA的优化目标和优化流程..........................................................................63.1.3TD-SCDMA优化数据的采集......................................................................................73.2TD-SCDMA关键性KPI指标.............................................................................................73.2.1无线网络评估................................................................................................................83.2.2网络关键性能KPI指标...............................................................................................8第四章TD-SCDMA常见问题的优化及案例分析...................................................................104.1关于弱盖弱的优化............................................................................................................104.2关于越区覆盖的优化........................................................................................................114.3关于掉话的优化................................................................................................................134.4关于未接通问题的优化....................................................................................................174.5关于切换问题的优化........................................................................................................204.6关于干扰问题的优化........................................................................................................224.72G/3G互操作的优化.........................................................................................................23总结...............................................................................................................................................24参考文献..........................