LTE终端小区选择方案设计及实现

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2010)03-0081-04LTEX,(,400065):LTE,,,,,,SDL()TTCN(),MSC(),:LTE;;;:TN929.5:Adoi:10.3969/j.issn.1001-893x.2010.03.018SchematicDesignandImplementationofLTETerminalCellSelectionFENGChuan,LIXiao2wen(CollegeofCommunicationsandInformationEngineering,ChongqingUniversityofPostsandTelecommunications,Chongqing400065,China)Abstract:AccordingtoLTEhighlayerprotocolofterminalcellselectionandasuitableandacceptablecellcon2dition,thenormalprocessofcellselectionisanalyzedwithfocusonthesubsequentcellselectionprocesswhentheaboveconditionisnotsatisfied.Thecorrespondingdesignflowisgiven.AndtheMSC(MessageSequenceCharts)isproducedusingSDL(SpecificationandDescriptionLanguage)andTTCN(TreeandTabularCom2binedNotation)co-simulation.Thesimulationresultshowsthatthedesigncaneffectivelycompletetherequiredcelloptionsbyspecification.Keywords:LTEproject;cellselection;SDL;messagesequencechart(MSC)1LTE3GPP,,,3GPPLTE,,,,,,,,,RRC(),LTE,LTE,,LTE2,:1850320103TelecommunicationEngineeringVol.50No.3Mar.2010X:2010-01-15;:2010-03-03:(2009ZX03002-009)FoundationItem:TheNationalMajorSpecialProject(No.2009ZX03002-009)©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[1]2.1,4:PLMN()NAS()PLMN;;bar;S[2]4SIB1(1)PLMNplmn2Iden2tityListtrackingAreaCodecell2BarredcellSelectionInfo[3]IE4,S[1]:Srelev=Qrxlevmeas-(Qrxlevmin+Qrxlevminoffset)-Pcompensation,QrxlevmeasRSRP();Qrxlevmin;QrxlevminofferVPLMNPLMNQrxlevmin;Pcompensationmax(PEMAXPUMAX,0),PEMAX,PUMAX,S,2.2,4,,(EMM)RRC,RRC(PHY),PHYRRC,PHY,(MIB),(SFN)PHYMAC()SIB1RRC[3],,1NULLSELIDL3,,,;,,,1Fig.1ThenormalprocessofcellselectionEMMEMM-ACT-REQRRC,,cellNumbercellNumber=0,;,,RRCCPHY-POWER-REQ,PHYRSRP,CMAC-ACT-REQMAC,NULLSELPHYCPHY-POWER-INDRRCRRC,RSRP,,PHY(RSRP),CPHY-IS-BCH-REQPHY,CPHY-IS-BCH-INDRRC,MIBSIB1[4]3,428©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:RSRP,PHYRSRPRRC,(RSRP),CRC,,;,,RRCIDL;,,,,:RSRP,bar,S0,PLMNPHY,SIB1PLMNMMPLMN,RRCPHY,PLMN,PLMNPLMNNASPLMN,,,,:RSRP,barS0RSRP,,RSRP,,MIBSIB1,barS0,,SIB1,SIB3(3)SIB8(8),,,S,S0,S,,RRC,PHYS,,,RRCIDL,,22barS0Fig.2ThedesignprocesswhenthecellisbarorS0,,,,S,S,,,,,383:LTE256©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:[1]3GPP.TS36.304V9.0.0,3rdGenerationPartnershipPro2ject;TechnicalSpecificationGroupRadioAccessNetwork;EvolvedUniversalTerrestrialRadioAccess(E-UTRA);UserEquipment(UE)proceduresinidlemode[S].[2],,,.TD2SCDMA[M].:,2003:77-79.LIXiao-wen,LIGui-yong,CHENXian-liang,etal.The3rdGenetationMobileCommunicationSystem,SignalingandImplementation[M].Beijing:PeoplesPosts&Telecommuni2cationsPress,2003.(inChinese)[3]3GPP.TS36.321V9.0.0,3rdGenerationPartnershipPro2ject;TechnicalSpecificationGroupRadioAccessNetwork;EvolvedUniversalTerrestrialRadioAccess(E2UTRA);MediumAccessControl(MAC)protocolspecification[S].[4]3GPP.TS36.331V9.0.0,3rdGenerationPartnershipPro2ject;TechnicalSpecificationGroupRadioAccessNetwork;EvolvedUniversalTerrestrialRadioAccess(E2UTRA);Ra2dioResourceControl(RRC)[S].:(1984),,,,LTE;FENGChuan(male)wasborninJining,ShandongProvince,in1984.Heisnowagraduatestudent.HisresearchdirectionisLTEprotocolstack.Email:[e-mail](1955),,,,LIXiao2wen(male)wasborninChongqing,in1955.Heisnowaprofessorofseniorengineering.Hisresearchdirectionismobilecommunication.Email:[e-mail]48