3G无线网络规划研究 水木清华

江西理工大学应I3G无线网络规划研究摘要第三代(3G)移动通信是目前移动通信发展的主要方向。中国作为世界上最大的移动通信市场，其第三代移动通信的发展己成为国际关注的热点。各通信运营商要想在移动通信市场竞争中占据有利地位、取得一定的市场份额，一个切实可行、科学合理的网络规划是必不可少的。网络规划设计的好坏对确保实现网络建设的目标(工期、质量、成本)、发挥新技术优势、取得良好的经济效益起着关键作用。WCDMA的技术优势能否得到充分发挥，网络规划和设计是至关重要的。此时进行WCDMA无线网络规划设计的深入研究是推进国内3G商用化的前提，有着积极的现实意义。WCDMA网络规划是3G移动通信网建设的核心部分，无论是WCDMA网络建设初期还是网络的扩容时期，细致周密的网络规划对于网络的建设成本与运行质量都具有极为重大的意义。本文结合WCDMA的技术特点，在汲取GSM网络建设经验的基础上，对WCDMA无线网络规划的特点、内容、过程等进行了初步的探讨，并重点对规划过程进行了研究。关键词3G、WCDMA、无线网络规划水木清华：3G无线网络规划研究II3GWirelessNetworkPlanningResearchABSTRACTThethirdgeneration(3G)mobilecommunicationiscurrentlythemaindevelopmentdirectionofmobilecommunicationsChinaastheworld'slargestmobilecommunicationsmarket,itsthirdgenerationmobilecommunicationdevelopmenthasbecomethehotspotinternationalconcern.Eachtelecommunicationoperatorstoinmobilecommunicationmarketcompetitionoccupiesadvantageousposition,andobtainedacertainmarketshare,apractical,scientificandreasonablenetworkplanningisindispensable.Thestandorfallofnetworkplanningdesigntoensurethatthenetworkconstructionofthetarget(time,quality,cost),useofnewtechnologyadvantage,andgoodeconomicbenefitisobtainedtoplayakeyrole.WCDMAtechnologyadvantagecanbebroughtintofullplay,thenetworkplanninganddesignisofvitalimportance.AtthistimeforWCDMAplanninganddesignofthoroughresearchispromotingthepremiseofdomestic3Gcommercialapplications,ithasthepositiverealisticsignificance.WCDMAnetworkplanningisthecoreof3Gmobilecommunicationnetworkconstruction,whetherWCDMAnetworkconstructionpartofinitialornetworkexpansionperiod,meticulouselaboratenetworkplanningforthenetworkconstructioncostandoperationqualityhasveryimportantsignificance.Basedonthetechnicalcharacteristics,inWCDMAabsorbingtheGSMnetwork,onthebasisoftheconstructionexperienceofWCDMAplanningcharacteristics,contentsandprocessofcarriedonthepreliminarydiscussion,withanemphasisonplanningprocesswasstudied.Keywords3G、WCDMA、Wirelessnetworkplanning江西理工大学应III目录第一章绪论.........................................................................................................11.1引言...............................................................................................................11.2现行3G的技术体制....................................................................................11.33G在我国的发展情况.................................................................................21.4WCDMA网络规划发展情况......................................................................21.4.1国内外WCDMA应用情况................................................................21.4.2WCDMA目前发展焦点.....................................................................31.4.3WCDMA无线网络规划发展及存在问题.........................................31.5研究的目的和意义.......................................................................................31.6本论文结构...................................................................................................4第二章WCDMA无线网络规划基本原则............................................................52.1WCDMA系统整体结构..............................................................................52.2WCDMA无线网络建设指导思想..............................................................62.2.1综合建网成本最小.............................................................................62.2.2盈利业务覆盖最佳……....................................................................62.2.3网络有效容量大…….......................................................................62.2.4网络提供业务质量最优…….............................................................62.2.5网络未来可升级的潜力最大…….....................................................72.2.6竞争能力最强…….............................................................................72.3WCDMA无线网络规划的关键性能指标..................................................72.3.1通信概率和覆盖率…….....................................................................7水木清华：3G无线网络规划研究IV2.3.2接收信号码功率RSCP….................................................................72.3.3导频信道信号接收灵敏度Ec/Io…….............................................72.3.4并发用户数……...............................................................................82.3.5数据吞吐量……...............................................................................82.3.6系统负载因子……...........................................................................92.3.7阻塞率与延时……...........................................................................92.3.8软切换比例和软切换成功率……...................................................92.4WCDMA无线网络规划流程…….............................................................112.4.1确定规划目标….............................................................................112.4.2GSM无线网资源调查……............................................................122.4.3链路预算…….................................................................................132.4.4传播模型及其校正…….................................................................132.4.5站址选择与查勘…….....................................................................142.4.6仿真…….........................................................................................142.4.7分区和编号计划…….........