预览加载中，请您耐心等待几秒...

TD-LTE室内分布系统的设计方法与干扰分析.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

TD-LTE室内分布系统的设计方法与干扰分析 Introduction: Thepopularityofwirelesscommunicationsystems,especiallyformobilenetworks,hasincreasedovertheyears.Inmostapplications,thesesystemsrequirereliableoperationbothindoorsandoutdoors.Sincemostcommunicationsystemsaredesignedtooperateoutdoors,itisessentialtoensurecoverageinsidebuildings.Thelackofindoorcoveragecancausepoorsignalquality,droppedcalls,andslowdatarates.Hence,thedesignofindoordistributedsystemsbasedonTD-LTEtechnologyisparamount. TD-LTEtechnologyisanexcellentchoiceforindoordistributedsystemsduetoitshighdatarates,spectralefficiency,andlowlatency.Thetechnologyalsoallowsforhighercapacity,andthusitcansupportmoresimultaneoususers.However,thedesignofindoordistributedsystemsbasedonTD-LTEtechnologyrequiresdetailedanalysisoftheinterferencetoaccuratelypredictthesystemperformance. DesignMethodology: ThedesignofTD-LTEindoordistributedsystemshasseveralcriticaldesignparameters,includingthenumberofnodes,thetypeofantennasused,andtheirlocations.ThefollowingisageneraldesignmethodologyforTD-LTEindoordistributedsystems: 1.SiteSurvey:Asitesurveyoftheareaistypicallythefirststepofdesigninganindoordistributedsystem.Thesurveyinvolvescollectingdataonthebuildinglayout,location,andphysicaldimensions,whichisusedtodeterminethenumberandplacementoftheequipment. 2.SelectionofAntennaType:Dependingonthearea'ssize,severaltypesofantennascanbeusedtoprovidecoverage.Thechoiceofantennatypedependsonthefrequencyband,coveragerequirements,andbudget. 3.SelectionofNodeTypes:Thetypeofequipmentuseddependsonthearea'ssize,shape,andlayout.Forexample,areaswithhighceilingsrequirehighpowerednodestoprovideadequatecoverage. 4.NetworkPlanning:Oncethenodeandantennaareselected,adetailednetworkplaniscreated.Theplanisbasedontheequipment'scapabilities,includingthenumberofchannelsandtherangeoffrequencies. 5.Installation:Thefinalstepinvolvestheinstallationoftheequipmentandthedeploymentofthenetwork. InterferenceAnalysis: InterferenceisoneofthemostsignificantchallengesassociatedwithTD-LTEindoord