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1、$科n婁—三——!L丹糞}:!!絲!』.4&代目—j盟!!密輾.——.專J,杰榔鷹Z碧碩士學(xué)位論文論文題目:TD—SCDMA無線網(wǎng)絡(luò)設(shè)計(jì)規(guī)劃學(xué)生學(xué)指導(dǎo)學(xué)科研究姓名號(hào)教師專業(yè)方向張冰碩050309酆廣增教授通信與信息系統(tǒng)移動(dòng)通信與無線技術(shù)論文提交日期二oo八年四月摘要TD·SCDMA(TimeDivision—SynchronousCodeDivisionMultipleAddress,時(shí)分雙工同步碼分多址)技術(shù)是中國具有自主知識(shí)產(chǎn)權(quán)的3G技術(shù)主流標(biāo)準(zhǔn),經(jīng)過多年的高速發(fā)展和不斷完善,無論是從技術(shù)標(biāo)準(zhǔn)的發(fā)展還是從設(shè)備技術(shù)的研究開發(fā)和網(wǎng)絡(luò)
2、建設(shè),都已經(jīng)比較成熟,單獨(dú)組網(wǎng)能力已經(jīng)不留懸念,TD.SCDMA必將在未來的3G市場中占有一席之地。無線系統(tǒng)規(guī)劃設(shè)計(jì),即無線網(wǎng)絡(luò)規(guī)劃是移動(dòng)通信網(wǎng)絡(luò)規(guī)劃中最為關(guān)鍵的部分,其投資通常能占到總投資的2/3。TD.SCDMA無線網(wǎng)規(guī)的目標(biāo)是在滿足業(yè)務(wù)需求的前提下,平衡網(wǎng)絡(luò)覆蓋、質(zhì)量和成本之間的關(guān)系,這對(duì)TD.SCDMA無線網(wǎng)絡(luò)的預(yù)規(guī)劃和詳細(xì)規(guī)劃都提出了嚴(yán)格的要求。另外,如何在保證一定的網(wǎng)絡(luò)服務(wù)性能的前提下,最大限度地發(fā)揮系統(tǒng)的容量,提高頻譜的利用率,使網(wǎng)絡(luò)的投資收益比最大化,是無線網(wǎng)絡(luò)規(guī)劃工作者不斷追逐的目標(biāo)。論文從對(duì)TD.SCDMA系統(tǒng)本
3、身的技術(shù)參數(shù)、系統(tǒng)結(jié)構(gòu)、幀結(jié)構(gòu)及其特有技術(shù)如時(shí)分雙工、智能天線和聯(lián)合檢測(cè)等的分析出發(fā),對(duì)TD.SCDMA系統(tǒng)各種不同速率業(yè)務(wù)的鏈路預(yù)算進(jìn)行了計(jì)算分析,得出了一般情況下的TD—SCDMA系統(tǒng)的理論覆蓋能力,還分別從干擾受限和碼道受限兩個(gè)方面分析了TD.SCDMA系統(tǒng)的理論容量。然后從傳播模型校正、碼規(guī)劃、頻率規(guī)劃、時(shí)隙比例規(guī)劃等各方面對(duì)TD.SCDMA無線網(wǎng)絡(luò)進(jìn)行了詳細(xì)的規(guī)劃仿真研究。最后結(jié)合某城市或稱假想的某區(qū)的實(shí)際情況用規(guī)劃仿真軟件進(jìn)行了TD.SCDMA無線網(wǎng)絡(luò)規(guī)劃的案例分析,希望能夠?qū)淼拇笠?guī)模組網(wǎng)實(shí)踐提供參考。關(guān)鍵詞:TD.
4、SCDMA系統(tǒng),無線網(wǎng)絡(luò)規(guī)劃,關(guān)鍵技術(shù),預(yù)規(guī)劃,無線網(wǎng)絡(luò)仿真IIAbstractTheTimeDivision-SynchronousCodeDivisionMultipleAccess(TD—SCDMA)technologyisoneofthemainstreamstandardsforthe3GtechnologywhereChinaisgrantedwiththeintellectualpropertyrights.SincetheTD—SCDMAhasdevelopedrapidlyfordecadesandhasbeeng
5、raduallyimproved,ithasbecomerelativelymaturenotonlyinthefieldoftechnologystandardsbutalsointermsofresearchanddevelopmentofequipmentsaswellasnetworkconstruction,whichundoubtedlyhasthestandalonenetworkingcapability.Definitely,itistheTD—SCDMAtechnologythatoccupiesanimport
6、antpositioninthecoming3Gmarket.Wirelessnetworksystemplanninganddesign,i.e.,wirelessnetworkplanning,playsacrucialroleinthemobilecommunicationnetworkplanning,whichgenerallyoccupies2/3ofthetotalinvestment.TheTD—SCDMAwirelessnetworkplanningaimsatachievingabalancedeffectamo
7、ngthenetworkcoverage,quality,andcost,underthepreconditionofsatisfyingtheservicedemands,andcorrespondingly,ithasstrictrequirementsfortheTD—SCDMApreplanninganddetailedplanning.Inaddition,howtoutilizethesystemcapacitytothemaximumlevel,toenhancetheutilizationofthefrequency
8、spectrum,andtomaximizetherateofreturnoninvestmentofthenetwork,whileensuringthenetworkserviceperformanceatacertainleve