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1、1目錄引言.......................................................................................................................41GSM系統(tǒng)簡介.......................................................................................

2、.............51.2GSM網(wǎng)絡(luò)接口..................................................................................................................81.3頻率配置..........................................................................

3、.................................................101.4信道分類...........................................................................................................................112GSM網(wǎng)絡(luò)優(yōu)化目標(biāo)和流程........................

4、......................................................142.1GSM無線網(wǎng)絡(luò)優(yōu)化的目標(biāo)..............................................................................................142.2GSM無線網(wǎng)絡(luò)優(yōu)化的流程......................................

5、........................................................153室內(nèi)覆蓋的優(yōu)化...............................................................................................203.1室內(nèi)覆蓋優(yōu)化的意義.............................................

6、..........................................................203.2改善室內(nèi)覆蓋的方法及手段...........................................................................................213.4不同信號源比較..........................................

7、.....................................................................224天線在網(wǎng)絡(luò)優(yōu)化中的作用...............................................................................274.1天線的主要性能指標(biāo)............................................

8、...........................................................274.2優(yōu)化中天線的選擇...........................................................................................................305掉話的分析和解決方法............................

9、.......................................................335.1由于切換導(dǎo)致的掉話........................................................................................................335.2由于干擾而導(dǎo)致的掉話................................

10、...................................................................365.3天饋線原因產(chǎn)生掉話的情況............................................................................................396大學(xué)園區(qū)高話務(wù)解決方案..............................

11、..................................................416.1高話務(wù)簡要分析...............................................................................................................416.2方案簡要分析....................................

12、...............................................................................426.3對于高校話務(wù)問題的幾點考慮.......................................................................................44結(jié)束語...............................

13、....................................................................................46致謝.......................................................................................................................47參考文獻.......

14、........................................................................................................483AbstractInChinaGSMwkhasahistyofabout14yearseversinceitbeganitscommercialusefrom1993.ItspresentamountofChineseuser

15、ismethan350millioneitherofthescalecapacityranksfirstinthewld.Ourdomesticmobilecommunicationsareconfrontedwithsevererigouschallenges.Ontheonehinpacewiththeastonishinggrowthoftelecommunicationusersthewkkeepsexpinginscale.H

16、oweverproblemslikewantoffrequencyresourcesthesmallercoefficientoffrequencyreusemeunwieldywkbringaboutmemetroublesofincreasinglydiversifiedcomplicated.Thusmereroutinemaintenanceisnotenoughtoprovidehighqualifiedservicefthe

17、broadmobilecommunicationusers.Ontheotherhasthecompetitionsarekeenertomeetthehigherdemofcustomersthewkoperatsarefacedwithsomeurgentcriticaltasksdifficulties:howtorunthewktoitsoptimumhowtoheightenthequalityoftelecommunicat

18、ionshowtoimprovetheaverageserviceutilizationrateofsysteminstallationsetc..EspeciallyinChina“shtcycle”“speediness”aretwopeculiaritiescommonlyexistingintheGSMexpingcapacityduration.Itleftoversomequalityproblemswhichshouldb

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