TD-LTE下行链路覆盖范围的分析

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1、重庆邮电大学硕士论文IIAbstractThedevelopmentofTD-LTEincreasinglymature，commercialcurtainwillalsobeimminent，SOalargenumberofTD-LTEcommercialnetworksneedtobeestablished．Accordingtothe3Gnetworkconstructionexperience，goodcoverageplanningnotonlyprovidesareferenceforthesizeofnetworkconstruction，butalso

2、carlreducetheamountoflateoptimizeworkload，whileanimportantoneofcoverageplanningisaperformanceanalysis．BecauseTD·LTEisessentiallydifferentwiththeprevious3G，alotofpreviousconclusionsarenotapplicable，SOitisnecessarytostudythecoverageofTD-LTEsystem，toprovidetheoreticalguidanceforcoveragepla

3、nning．ThepapermainlyfocusesonthedownlinkcoverageofTD—LTEsystem，whichthesimilarcoverageofbasestationisstudied．Inmostofthestudies，thebusinesscoverageismainlycalculatedbythemethodoflinkbudgetbusinesscoverage，thelackofvariousfactorstoaffecttheTD-LTEnetworktechnologytocoverin-depthresearch，c

4、omparativeanalysesandconclusionsarenotcomprehensiveenough，SOsubstantiveguidancecan’tcovertheplanning，andmostlyinthelinkbudgetorthroughcomputationaloverheadwaytodetermineitscorrespondingmodulationandcodingschemes．Thismethodisnotaccurate，andSOiStheresultsdeviationwiththeactualresultsofthe

5、TD．LTE．Inthispaper，simulationanalysisonavarietyoffactorsthataffectthedownlinkcoverage，givereasonableparameterconfigurationtorespondtothedifferentcoveragerequirements，andprovideareferencefortheactualcoverageplanning．InordertohaveabetterstudyofthecoverageofTD-LTEdownlink，thepaperfocusonth

6、efollowingthreeaspects：Firstly，throughtheanalysisofTD—LTEnetworkcoveragecharacteristicsandthetechnologyofTD-LTE，thepapertheoreticallyanalyzethekeyfactorsthataffectthedownlinkcoverage．Secondly，inordertogetcoverageclosertotheTD—LTEsystemsimulation，thepaperbuildthesimulationplatformofTD—LT

7、Edownlink．Inthispaper，theoveralldesignofthesimulationplatformofTD-LTEdownlinkisintroducedindetail，andthentofivechanneltransmitter，receiverprocess，basebandprocesses，aswellastheimplementationprocessofeachmodule，andfinallythepaperverifyitscorrectness．Inresearchofcoverage，toensuret