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1、本科生毕业设计(论文)摘要通信技术的发展日新月异,移动业务蓬勃发展已经渗入了人们生活的方方面面,给人们生活带来了极大便利。随着移动网络的发展,CDMA无线网络建设规模逐渐扩大,它提供的各类业务在信号质量、安全性、功耗和可靠性等方面都表现出很强的技术优势。但随着CDMA无线网络中用户的飞速上涨,网络的不断扩容,原有的网络设计及结构改变、话务量不断增加直接影响着CDMA无线网络的质量。因此CDMA无线网络进行优化就非常重要。本文介绍了CDMA无线网络的基本原理,分析了目前CDMA无线网络现状,既原有网络由于话务量少基站建设少,现在话务提升,网络规
2、模不断扩大,随之而来的网络规划,基站选址不合理,信号覆盖不好,或出现导频污染等降低网络质量的问题。本文结合实例,给出CDMA无线网络优化的系统流程,通过CQT测试和路测,网管话务统计,对网络关键指标如呼叫接通率、信道阻塞率、掉话率等进行了详细分析,找到了问题产生的原因,提出了解决问题的方法,从而提高了网络的服务质量。关键字:移动通信;CDMA;网络规划;网络优化77本科生毕业设计(论文)AbstractWiththerapiddevelopmentofcommunicationtechnology,theboomingmobileservic
3、eshasinfiltratedallaspectsofpeople'slives,itbringsagreatconvenienceforpeople.Withthedevelopmentofthemobilenetwork,thedevelopmentofmobilecommunicationsisrapidly,theconstructionscaleofCDMAnetworkisalsograduallyexpanding,sinceCDMAisoneoffastestgrowingdigitalwirelesstechnologyi
4、nmobilecommunications,therefore,itprovidesvarioustypesofbusinessinthesignalquality,safety,powerandreliability,haveshownastrongtechnologicaladvantage.Withtherapiddevelopmentofglobalmobilenetwork,thecustomersofCDMAnetworkincreasesrapidly,thenetworkcontinuesexpansion,theorigin
5、alnetworkdesignandstructuralchanges、thetelephonetrafficincreasing,thesefactorsdirectlyaffectthequalityofCDMAnetwork.Therefore,itisveryimportanttooptimizeCDMA.Onlyusetheideaofoptimizationguidetheplanning,withagoodoptimizationprocess,agoodnetworkcanproduce.Thisarticledescribe
6、stheCDMAwirelesscommunicationnetworks,theory,channelandsoon.Forthekeyindicatorsofnetwork:Callsetupsuccessrate,calldroprateandotherissuesareanalyzedindetailandputforwardsolutionstotheoptimizationprocessisgiveninthecase.AnalysisofthecurrentstatusofCDMAnetwork,theoriginalnetwo
7、rkhaslesstelephonetrafficsandbasestation,moremountainstations,butnowthenetworkhasmoretelephonetraffics,thecustomersrisingrapidly,thenetworksexpanding,followingthenetworkplanning、sitesselectionunreasonableproblemscausedbynetworkmanifested,thispaperwiththecase,showsanetworkpl
8、anningandoptimizationonlycombinedwillbebetter.andadetailedprocessofCDMAnetworkopti