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1、TD．SCDMA網(wǎng)絡(luò)優(yōu)化中2／3G互操作參數(shù)設(shè)置及優(yōu)化專業(yè)：電子與通信工程碩士生：劉大陸指導(dǎo)教師：王朝暉摘要國產(chǎn)3G標(biāo)準(zhǔn)TD．SCDMA在中國正式商用，目前正處于建網(wǎng)期，信號覆蓋不太完善。2／3G互操作可以有效依托GSM網(wǎng)絡(luò)解決建網(wǎng)初期信號覆蓋不足影響用戶感知問題。本文主要介紹了2／3G互操作的過程及參數(shù)設(shè)置建議并通過實例分析不同環(huán)境下2／3G互操作的成功率及存在的問題，最后對特定環(huán)境下參數(shù)設(shè)定及其優(yōu)化提出了一些思路。首先，本文介紹了TD．SCDMA的發(fā)展歷程及與其他3G標(biāo)準(zhǔn)的對比，簡單介紹了TD．SCDMA網(wǎng)絡(luò)優(yōu)化概念。其次介紹了2／3G互操作的產(chǎn)生原因、操
2、作原理及參數(shù)設(shè)置建議，然后通過珠三角城市TD．SCDMA網(wǎng)優(yōu)中2／3G互操作的各種實例展示，分析了其中普遍存在的問題。最后總結(jié)出大區(qū)邊緣、覆蓋空洞和室內(nèi)特殊場景三種特殊覆蓋環(huán)境下的信號特點，并對該三種環(huán)境的2／3G互操作參數(shù)設(shè)置進行優(yōu)化。通過實際測試驗證效果，從而得到一些有意義的結(jié)論。關(guān)鍵詞：TD．SCDMA網(wǎng)絡(luò)優(yōu)化2／3G互操作IIIParameterSettingandOptimizationof2／3GinTD—SCDMANetworkOptimizationInteroperabilityMajor：ElectronicandTelecommunica
3、tionName：LiuDaluSupervisor：WangZhaohuiAbstractTD．SCDMAindomestic3Gstandards，whichisbeingusedincommerceformallyinChina,isnotperfectinsignalcoverageatpresentwhenbeinginNetworkConstructionperiod．2／3GInteroperabilityisabletoeffectivelyrelyonGSMnetworkstosolvetheproblemofaffectingconsume
4、rperceptionbyintheinitialstageofNetworkConstruction．Thisimperfectsignalcoveragethesismainlyintroducestheprocessandsuggestionsonparametersettingof2／3GInteroperability,andanalysestheSuccessrateandproblemsof2／3GaInteroperabilityindifferentenvironmentsbyusingexamples，andproposesfewtrain
5、softhoughtonparametersettingandoptimizationinspecialenvironments．Firstly,thisthesisstartswiththeintroductionofthedevelopmentofTD．SCDMA，thecontrasts塒tllthoseinother3Gstandards，aswellasthebriefintroductionoftheconceptofTD—SCDMANetworkOptimization．Secondly,itpresentsthecreationcause，pr
6、incipleandsuggestionsonparametersettingof2／3GInteroperability,andthenanalysesthegeneralproblemsof2／3GInteroperabilityinTD．SCDMANetworkOptimizationinPealRiverDeltabyallkindsofexamples．Lastly,itsummarizesthesignalcharactersunderthreekindsofspecialenvironmentslikeAreaedge、BlindSpotscov
7、erageandSpecialsceneindoor,andoptimizestheparametersettingof2／3GInteroperabilityofthesethreekindsofenvironments，andthendrawssomemeaningfulconclusionsIVbypracticaltestsandverifiedeffects．KeyWord：TD—SCDMA2／3GInteroperabilityNetworkOptimizationV第一章．序言1．1TD．SCDMA系統(tǒng)的發(fā)展TD．SCDMA(時分．同步碼分多址接
8、入，TimeDivision．Sync
