一种机场专用集群系统终端模拟器rrc层协议设计与实现

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1、ABSTRACTABSTRACTWiththedevelopmentofwirelesscommunicationtechnology,publicmobilecommunicationtechnologyhasevolvedtothe4thgeneration，ofwhichLTE(LongTermEvolution)developedby3GPPisthemainstreamstandard.LTEhasastandardsystemandstate-of-the-artaccesstechnology

2、,andcanprovidehigh-speedwirelesscommunicationforthemobiletelephoneandthedataterminal.Dedicatedtrunkingcommunicationsystemrequirementsarealsoincreasinginrecentyearsduetotheimprovementofbusinesssizeandlevelofserviceofthecivilaviationairport..UsingthelatestLT

3、EtechnologytodeveloptheAirportbroadbandtrunkingcommunicationsystemcaneffectivelyimprovetheservicelevelofthissystem.SomenecessarychangesneedstobemadetoconstructairportdedicatedbroadbandtrunkingcommunicationsystemsbasedonLTEwhichisdesignedforpublicmobilecomm

4、unication.Thesechangesmakethedevelopmentprocessoftheairportbroadbandtrunkingcommunicationsystemneedtohaveadedicatedterminalsimulatorsupport.ThisarticlefocusesonthedesignandimplementationofradioresourcecontrolprotocoloftheAirportbroadbandtrunkingcommunicati

5、onsystem.BasedontheMPC8545EPowerPChardwareplatformandVxWorks6.4operatingsystem,theradioresourcecontrolmoduleisdevelopedusingtheC++language.FirstlytheadvantagesoftheairportdedicatedtrunkingcommunicationsystembasedonLTEtechnology，theoverallsystemarchitecture

6、andapplicationscenariosareanalysed.Onthisbasis,businessrequirements,functionalrequirements,andkeyperformanceindicatorsareresolved.Andthenthehardwarearchitectureoftheterminalsimulator,thesoftwareoperatingenvironmentandsoftwaredesignprinciplesaregiven.Radior

7、esourcecontrolprotocolandnon-accesslayerprotocoljointlyconstitutetheprotocolsofthecontrolsurface,bothassociatedwithstrong,sothestructureofsoftwareimplementationofthecontrolsurfacessoftwareisfirstresearched,andthentheoveralldesignoftheRRCmoduleisexecuted.Th

8、enthefunctionsandsoftwareimplementationofUE-CENTERsub-module,theMOBILITYsub-module,theSYSTEM-INFOsub-module,theCOMMONsub-module,andL1/L2CONFIGsub-modulearedescribedindetail.II万方数据ABSTARCTFinally,testsoftheboo