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1、3GPPTR38.885V1.0.2(2019-02)TechnicalReport3rdGenerationPartnershipProject;TechnicalSpecificationGroupRadioAccessNetwork;NR;StudyonVehicle-to-Everything(Release16)35段Thepresentdocumenthasbeendevelopedwithinthe3rdGenerationPartnershipProject(3GPP)andmaybefurtherelaboratedforthepurposesof3GPP.Thepresen
2、tdocumenthasnotbeensubjecttoanyapprovalprocessbythe3GPPOrganizationalPartnersandshallnotbeinplennted.ThisReportisprovidedforfuturedevclopmenlworkwithin3GPPonly.TheOrganizationalPartnersacceptnoliabilityforanyuseofthisSpecificaiion.SpecificationsandReportsforimplementationofthe3GPPn4systemshouldbeobt
3、ainedviathe3GPPOrganizationalPartnersPublicationsOffices.Keywords3GPPPostaladdress3GPPSUPPOrtOffiCeaddress650RoutedesLucioles-SophiaAntipolisValbonne-FRANCETel.:+334929442OOFax:+33493654716Internethttp7www.3gpp.orgCOPyrigMNOtifiCatiOnNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopy
4、rightandtheforegoingrestrictionextendtoreproductioninallmedia.2018,3GPPOrganizationalPartners(ARIB,ATIS,CCSA.ETSLTSDSI,TTA,TTC).Allrightsreserved.UMTSisaTradeMarkofETSIregisteredforthebenefitofitsmembers3GPPisaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartnersLTEisa
5、TradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartnersGSMandtheGSMlogoareregisteredandownedbytheGSMAssociationContentsForeword51 Scope62 References63 Definitions,symbolsandabbreviations63.1 Definitions63.2 Symbols73.3 Abbreviations7Operationscenarios5 Sidelink(PC5)aspec
6、ts5.1 NRsidelinkunicast,groupcast,andbroadcastdesign5.1.1 Physicallayerstructures5.1.1.1 Waveform5.1.1.2 Subcarrierspacingandcyclicprefix5.1.1.3 Modulation5.1.1.4 Scrambling5.1.1.5 Channelcoding5.1.1.6 SLbandwidthpartsandresourcepools5.1.1.7 PSSCH5.1.1.8 REmappingandratematching5.1.1.9 Referencesign
7、als5.1.2 Physicallayerprocedures5.1.2.1 Multiplexingofphysicalchannels5.1.2.2 HARQprocedures5.1.2.2.1 GeneralHARQprocedure5.1.2.2.2 HARQproceduredetailsforMode1resourceallocation5.1.2.2.3 HARQproceduredetailsforMode2resourceallocation5.1.2.3 CSIacquisitionandlinkadaptation5.1.2.4 Powercontrol5.1.2.5
8、 Multiantennatransmissionscheme5.2 Synchronization5.2.1 S-PSS,S-SSS,PSBCH5.2.2 Synchronizationprocedure5.3 Resourceallocation5.3.1 ResourceallocationMode25.3.1.1 Sensingandresource(re-)selection5.3.1.2 Mode2(a)5.3.1.3 Mode2(c)5.4 Mode2(d)5.5 1.2L3protocols7777888996 Uplinkanddownlink(Uu)aspects6.1.1
9、 AdvancedV2XusecasesoverUuinterfaces.6.1.2 1.TEUuevaluationandenhancement6.1.3 NRUuevaluationandenhancement6.2 Uu-basedSLresourcealIocationZconfiguration6.2.1 ControlofNRSLbyNR6.2.1.1 RRC6.2.2 ControlofNRSLbyLTE6.2.3 ControlofLTESLbyNR7 QoSmanagement198 RATandinterfaceselection199 Coexistence199.1 T
10、DMsolutions199.2 FDMsolutions2010 Networkaspects2010.1 V2Xserviceauthorization2010.2 UESLaggregatemaximumbitrate2010.3 ImpactsontheFlinterface2010.4 Slicingaspects2011 Evaluationsandmeasurementresults2011.1 Latency2111.2 mmWaveSLperformance2212 Conclusions22AnnexA:Evaluationassumptions23A.lSimulatio
11、nprofiles23A.2Link-levelsimulationparameters23Annex:Changehistory25ForewordThisTechnicalReporthasbeenproducedbythe3rdGenerationPartnershipProject(3GPP).ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithintheTSGandmaychangefollowingformalTSGapproval.ShouldtheTSGmodifythecontentsofthepresen
12、tdocument,itwillbere-releasedbytheTSGwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Versionx.y.zwhere:xthefirstdigit:1 presentedtoTSGforinformation;2 presentedtoTSGforapproval;3 orgreaterindicatesTSGapproveddocumentunderchangecontrol.ytheseconddigitisincrementedforallchang
13、esofsubstance,i.e.technicalenhancements,corrections,updates,etc.zthethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthedocument.1 ScopeThepresentdocumentcapturesthefindingsofthestudyitem,StudyonNRVehicle-to-Everylhing2.ThepurposeofthisTRistoistostudyhowtosupportadvancedV2Xusecas
14、esidentifiedin3,amongothermatters.However,thisdoesnotimplythatNRV2Xcapabilityisnecessarilyrestrictedtoadvancedservices.Itisuptotheregionalregulatorsandthestakeholdersinvolved(i.e.carOEMsandtheautomotiveecosystemingeneral)todecideonthetechnologyofchoiceforthesen,icesandusecases.ThisdocumentaddressesN
15、RSLdesignforV2X;UuenhancementsforadvancedV2Xusecases;Uu-basedSLresourceallocation/configuralionbyLTEandNR;RATandinterfaceselection;QoSmanagement;andnon-cochannelcoexistencebetweenNRandLTESLs.ThestudyaddressesunlicensedITSbandsandlicensedbandsinfrequencyrangesbelowandabove6GHz,i.e.FRlandFR2,upto52.6G
16、Hz.Thisdocumentisalivingdocument,i.e.itispermanentlyupdatedandpresentedtoTSG-RANmeetings.2 ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.- Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber
17、,etc.)ornon-specific.- Foraspecificreference,subsequentrevisionsdonotapply.- Foranon-specificreference,thelatestversionapplies.Inthecaseofareferencetoa3GPPdocument(includingaGSMdocument),anon-specificreferenceimplicitlyreferstothelatestversionofthatdocumentinthesameReleaseasthepresentdocument.13GPPT
18、R21.9()5:Vocabularyfor3GPPSpecifications.2 3GPPRP-181480:,NewSID:StudyonNRV2X.3 3GPPTR22.186:Enhancementof3GPPsupportforV2Xscenarios;Stage1.4 3GPPTR38.913:StudyonScenariosandRequirementsforNextGenerationAccessTechnologies.5 3GPPTR37.885:StudyonevaluationmethodologyofnewVehicle-to-EverythingV2Xusecas
19、esforLTEandNR.6 3GPPTR37.910:StudyonselfevaluationtowardsIMT-2020submission.7 3GPPTR38.800:NRandNG-RANOverallDescription;Stage2.8 R1-190046:FieldIrialresulisfrom39GHZVehiCIeIoVehiCIeCommunicalioni,AT&T9 Rl-1805914:V2XSideIinkChannelmodel”,Huawei,HiSiHCon3 Definitions,symbolsandabbreviations3.1 Defin
20、itionsForthepurposesofthepresentdocument,thetermsanddefinitionsgivenin3GPPTR21.9051andthefollowingapply.Atermdefinedinthepresentdocumenttakesprecedenceoverthedefinitionofthesameterm,ifany,in3GPPTR21.9051.3.2 SymbolsForthePUrPOSeSofthepresentdocument,thefollowingsymbolsapply:3.3 AbbreviationsForthepu
21、rposesofthepresentdocument,theabbreviationsgivenin3GPPTR21.9051andthefollowingapply.Anabbreviationdefinedinthepresentdocumenttakesprecedenceoverthedefinitionofthesameabbreviation,ifany,in3GPPTR21.9051.5GC CBR CU DU EN-DCFR GNSSITS MR-DC NE-DC NGEN-DC OLPC OS PSBCH PSCCH PSSCH RE RSU SCS SL V2B V2I V
22、2P V2R V2V V2X5GCoreNetworkChannelbusyratioCentralisedunitDistributedunitE-UTRA-NRDualConnectivityFrequencyrangeGlobalnavigationsatellitesystemIntelligenttransportsystemsMuIti-RadioDualConnectivityNR-E-UTRADualConnectivityNG-RANE-UTRA-NRDualConnectivityODen-IoODPOWerConlIolOFDMsymbolPhysicalSLbroadc
23、astchannelPhysicalSLcontrolchannelPhysicalSLsharedchannelResourceelementRoadsideunitSubcarrierspacingSidelinkVehicletobasestationVehicletoinfrastructureVehicletopedestrianVehicletoroadsideunitVehicletovehicleVehicletoeverything4 IntroductionSupportforV2VandV2XserviceshasbeenintroducedinLTEduringRele
24、ases14and15,inordertoexpandthe3GPPplatformtotheautomotiveindustry.TheseworkitemsdefinedanLTESLsuitableforvehicularapplications,andComPlemenlaryenhancementstothecellularinfrastructure.Furthertothiswork,SAWGlhavedefinedStage1requirementsforsupportofenhancedV2Xusecases,whicharebroadlyarrangedintofourus
25、ecasegroups3:1) VehiclesPlatooningenablesthevehiclestodynamicallyformaplatoontravellingtogether.Allthevehiclesintheplatoonobtaininformationfromtheleadingvehicletomanagethisplatoon.Theseinformationallowthevehiclestodrivecloserthannormalinacoordinatedmanner,goingtothesamedirectionandtravellingtogether
26、.2) ExtendedSensorsenablestheexchangeofraworprocesseddatagatheredthroughlocalsensorsorlivevideoimagesamongvehicles,roadsiteunits,devicesofpedestrianandV2Xapplicationservers.Thevehiclescanincreasetheperceptionoftheirenvironmentbeyondofwhattheirownsensorscandelectandhaveamorebroadandholisticviewofthel
27、ocalsituation.Highdatarateisoneofthekeycharacteristics.3) AdvancedDrivingenablessemi-automatedorfull-automateddriving.Eachvehicleand/orRSUsharesitsownperceptiondataobtainedfromitslocalsensorswithvehiclesinproximityandthatallowsvehiclestosynchronizeandcoordinatetheirtrajectoriesormanoeuvres.Eachvehic
28、lesharesitsdrivingintentionwithvehiclesinproximitytoo.4) RemoteDrivingenablesaremotedriveroraV2Xapplicationtooperatearemotevehicleforthosepassengerswhocannotdrivebythemselvesorremotevehicleslocatedindangerousenvironments.Foracasewherevariationislimitedandroutesarepredictable,suchaspublictransportati
29、on,drivingbasedoncloudcomputingcanbeused.Highreliabilityandlowlatencyarethemainrequirements.InTSGRAN,asetofcorresponding5GRANrequirements,channelmodels,etc.forNRhavebeendefinedinTR38.9134andTR37.8855.ThisstudyinvestigatestheRANaspectsofsupportingtheseadvancedusecasesandrequirementsinNR,asphase3ofV2X
30、supportinthe3GPPplatform.ThisTRreportsthestudysfindingson:NRSLdesignforV2X;UuenhancementsforadvancedV2Xusecases;Uu-basedSLresourceallocation/configurationbyLTEandNR;RATandinterfaceselection;QoSmanagement;andnon-cochannelcoexistencebetweenNRandLTESLs.ThestudyaddressesunlicensedITSbandsandlicensedband
31、sinfrequencyrangesbelowandabove6GHz,i.e.FRIandFR2,upto52.6GHz.Ascanbeseenfromtheseaspects,NRV2XwillcomplementLTEV2XIbradvancedV2XservicesandsupportinterworkingwithLTEV2X.Intheremainderofthisdocument,theNRSLortheLTESLmaybereferredtospecifically.WhennoRATisindicated,theNRSLismeant.4.1 Operationscenari
32、osThescenariosconsideredinthestudyarecapturedinthefollowingfigures.ThescenarioscanbecategorizedintostandaloneandMR-DCscenariosregardingthearchitecture.ThestudyprioritisedScenarios1and2,andMNControllingZconfiguringbothNRSLandLTESLinScenario5and6whichiscoveredbyScenario1and2.Figure4.1-1,Figure4.1-2and
33、Figure4.1-3illustratethestandalonescenariostosupportV2XSLcommunication.Particularly:1) Inscenario1,agNBprovidesConlrolZconfigurationforaUEsV2XcommunicationinbothLTESLandNRSL;2) Inscenario2,anng-eNBprovidesControlZconfigurationforaUEsV2XcommunicationinbothLTESLandNRSL;3) Inscenario3,aneNBprovidescont
34、rol/configurationforaUEsV2XcommunicationinbothLTESLandNRSL.5GCFigure4.1-1:Scenario1Figure4.1-2:Scenario2Figure4.1-3:Scenario3Figure4.1-4,Figure4.1-5andFigure4.1-6illustratetheMR-DCscenariostosupportV2XSLcommunication.Particularly:1) Inscenario4,aUE,sV2XcommunicationinLTESLandNRSLiscontrolled/configu
35、redbyUuwhiletheUEisconfiguredwithEN-DC;2) Inscenario5,aUE,sV2XcommunicationinLTESLandNRSLiscontrolled/configuredbyUuwhiletheUEisconfiguredinNE-DC;3) Inscenario6,aUE,sV2XcommunicationinLTESLandNRSLisControlIedZconfiguredbyUuwhiletheUEisconfiguredinNGEN-DC.Figure4.1-4:Scenario4Figure4.1-5:Scenario5Fig
36、ure4.1-6:Scenario65Sidelink(PC5)aspects5.1NRsidelinkunicast,groupcast,andbroadcastdesignSLbroadcast,groupcast,andunicasttransmissionsaresupportedfbrthein-coverage,out-of-coverageandpartialcoveragescenarios.TheASprotocolstackforthecontrolplaneinthePC5interfaceconsistsofatleastRRC,PDCP,RLCandMACsublay
37、ers,andthephysicallayer.TheprotocolstackofPC5-CisshowninFigure5.1-1.Figure5.1-1:PC5controlplane(PC5-C)protocolstack.TheASprotocolstackforuserplaneinthePC5interfaceconsistsofatleastPDCP,RLCandMACsublayers,andthephysicallayer.TheprotocolstackofPC5-UisshowninFigure5.1-2.Error!Objectscannotbecreatedfrom
38、editingfieldcodes.Figure5.1-2:PC5userplane(PC5-U)protocolstack.Forthepurposesofphysicallayeranalysis,itisassumedthathigherlayersdecideifunicast,groupcast,orbroadcasttransmissionistobeusedforaparticulardatatransfer,andtheycorrespondinglyinformthephysicallayer.Whenconsideringaunicastorgroupcasttransmi
39、ssion,itisassumedthattheUEisabletoestablishwhichunicastorgroupcastsessionatransmissionbelongsto,andthatthefollowinginformationisknowntothephysicallayer:-Identities:- TheIayer-IsourceanddestinationIDs,conveyedinSCIViaPSCCH- AdditionalIayer-IID(s),conveyedviaPSCCH,atleastforthepurposeofidentifyingwhic
40、htransmissionscanbecombinedinreceptionwhenHARQfeedbackisinuse(seeSection5.1.2.2)- HARQprocessIDForthepurposeofLayer2analysis,itisassumedthatupperlayers(i.e.aboveAS)providetheinformationonwhetheritisaunicast,groupcastorbroadcasttransmissionforaparticulardatatransfer.Fortheunicastandgroupcasttransmiss
41、ioninSL,thefollowinginformationisknowntoLayer2:-Identities:- Unicast:destinationID,sourceID- Groupcast:destinationGroupID,sourceIDDiscoveryprocedureandrelatedmessagesfortheunicastandgroupcasttransmissionareuptoupperlayers.5.1.1 PhysicallayerstructuresInthissection,thedesignofaphysicalSLcontrolchanne
42、l(PSCCH),aphysicalSLsharedchannel(PSSCH),aphysicalSLfeedbackchannel(PSFCH)insertotherslater.,andothermattersrelatedtophysicallayerstructuresarestudied.FordesignofthephysicalSLbroadcastchannel(PSBCH),refertoSection5.2.Editorsnote:Thearrangementofthefollowingsectionsmaybeupdateddependingonfurtheragree
43、mentsinRANL5.1.1.1 WaveformAsinglewaveformisusedforalltheSLchannelsinacarrier.ThewaveformsupportedinthestudyisCP-OFDM,atleast.ForDFT-S-OFDM,aspectstostudyinclude:coverageenhancementofSLsynchronization,PSCCH,andPSFCH.Incasespecificationssupportmultiplewaveforms,(pre-)configurationwilldeterminewhichis
44、inuse.5.1.1.2 SubcarrierspacingandcyclicprefixInFRl,15kHz,3()kHzand60kHzSCSaresupportedwithnormalCP,and60kHzSCSwithextendedCP.InFR2,60and120kHzSCSaresupported.Inagivencarrier,aUEisnotrequiredtoreceivesimultaneouslySLtransmissionswithmorethanonecombinationofSCSandCP,nortransmitsimultaneouslySLtransmi
45、ssionswithmorethanonecombinationofSCSandCP.ThenumerologyconfigurationispartoftheSLBWPconfiguration(seeSection5.1.1.6).5.1.1.3 Modulation5.1.1.4 Scrambling5.1.1.5 ChannelcodingThechannelcodingdefinedfordataandcontrolinNRUuarerespectivelythestartingpointsfordataandcontrolontheNRSL.5.1.1.6 SLbandwidthp
46、artsandresourcepoolsBWPisdefinedforSL,andthesameSLBWPisusedfortransmissionandreception.Inspecificationterms,inalicensedcarrier,SLBWPwouldbedefinedseparately,andhaveSeDarateCKnfigUrationSignaHing,fromUuBWP.OneSLBWPis(pre-)configuredforRRCIDLEandout-of-coverageNRV2XUEsinacarrier.ForUEsinRRC_CONNECTEDm
47、ode,oneSLBWPisactiveinacarrier.NosignallingisexchangedoverSLfortheactivationordeactivationofaSLBWP.OnlyoneSLBWPisconfiguredinaCalTierforaUE,andaUEisnocexpectedIoUSedifferentnumerologiesintheSLBWPIhananacliveULBWP.(EditcFsn3e:this认aRANIw*i，次Aresourcepoolisasetoftime-frequencyresourcesthatcanbeusedforSLtransmissionand/orreception.FromtheUEpointofview,aresourcepoolisinsidetheUE,sbandwidth,withinaSLBWPandhasasinglenumerology.TimedomainresourcesinaresourcepoolCanbenon-contiguous.MUItiPleresourcepoolscanbe(pre-)configuredtoaUEinacarrier.5.1.1.7 PS
