01-5G基础知识1

5G基本知识2019-4||Page2目录5G的应用5G无线网络结构5G物理层基本知识MassiveMIMO的基本知识NSA网络基本知识2019-4||Page3BroadbandandMediaEverywhereSmartVehiclesandTransportHumanMachineInteractionCriticalControlofRemoteDevicesCriticalServicesandInfrastructureControl5GUseCasesSensorNetworks2019-4||Page45G主要场景EnhancedMBBHome,Enterprise,Venues,Mobile/Wireless/Fixed4k/8kUHD,Broadcasting,VR/AR,SmartphoneLOWCOST,LOWENERGYSMALLDATAVOLUMESMASSIVENUMBERSULTRARELIABLEVERYLOWLATENCYVERYHIGHAVAILABILITYHigherdatarate2019-4||Page55G技术需求2019-4||Page6目录5G的应用5G无线网络结构5G物理层基本知识MassiveMIMO的基本知识NSA网络基本知识2019-4||Page75GEPC(vEPC)5GGC(NGCN)RANNSA(RANsplitLTEanchor)ControlplaneoverLTESADataswitch/agg.LTE/NRControlplaneoverNRDataswitch/agg.LTE/NRDataCtrlRANTightinterworkingwithLTEEvolvedCNFastestTTMCompletion:12.2017/ASN.1freeze03.2018“Independent”overlayTotallynewCNarchitectureHighestperformancepotentialCompletion:06.2018/ASN.1freeze09.20185G网络结构2019-4||Page83gpp网络可选项—Multipleconnectivityscenarios(Options),initiallyproposedfordiscussionson3GPP—Someofthemwithdifferentflavors—e.g:Option3-3,3a,3x;Option4-4,4x—Option6&8havebeenfromthestart“discarded”—Duetoneeded5GCpreferredmigration—Migrationto5Ghighlightsdifferent“issues”—Usecases—Multitudeofusecasesdrivesdifferentconnectivityoptions—Spectrum—BandwidthavailabilitylimitsOperatorflexibility—Ecosystem—Device&5GCNavailabilityinfluencespossiblepathsEPCeNBOption1Option25GCNgNBEPCgNBeNBOption3xOption45GCNgNBeNBOption55GCNeNBOption75GCNeNBgNB2019-4||Page93GPP的可选网络选项根据核心网的不同可以分为以下两个选项组：基于5G能力的5G-EPC的网络部署选项组选项-3，具有NR能力的UE接入5G-EPC网络。在选项3中，LTE作为主小区MCGcell，提供控制面数据的处理，用户面数据可以由LTE小区或NR小区提供，或者LTE和NR小区同时提供。选项3就是我们所说的NSA的网络部署，或者叫EN-DC网络NRLTEOPTION3NRLTEOPTION7NROPTION2OPTION4WeNBEPCWgNBWeNBWgNBWgNB5GCNRNonStand-AloneNRStand-Alone基于新的5G核心网5GC的网络部署选项组：选项2：完全的5G的系统，也成为SA网络选项4：NR小区作为主小区MCGcell，LTE小区作为辅小区SCGcell的网络部署，又称为：NE-DC选项7：LTE小区作为主小区MCGcell，NR小区作为辅小区SCG小区的网络部署。又称为：NGEN-DC选项5：只有LTE能力的UE接入5GC网络下的LTE小区2019-4||Page105GEPC&NSANRfrom3GPPTR38.801(Options3/3a/3x)to3GPPTS37.340(EN-DC)NRLTENRLTES1’-UNRLTEOption3xOption3aOption3•S1’-CalwaystoeNB•S1’-UterminatesoneNB•LTEeNBdecidesifUPtrafficisroutedviaNRgNBand/orLTEeNB(splitbearerinLTEeNB)•S1’-CalwaystoLTEeNB•S1’-UterminatesonNRgNB•NRgNBdecidesifUPtrafficisroutedviaNRgNBand/orLTEeNB(splitbearerinNRgNB)•S1’-CalwaystoLTEeNB•LTEeNBdecidesifabearerisroutedtoLTEeNBorNRgNB(bearerswitchinginSGW)5GEPCMMESGWX2’3GPPTR38.8013GPPTS37.3405GEPCMMESGW5GEPCMMESGWX2’MCGMasterCellGroupSCGSecondaryCellGroupMCGSplitbearerMCGbearerorSCGbearerSCGsplitbearerX2’Note:high-leveldefinitionofoption3variantsfordataservice(indicativeonly)2019-4||Page115GUE-RAN-CNDCoptions3GPPTR38.801&23.7993GPPTS37.3405GEPC3GPPtargetQ4’175GC3GPPtargetQ2’18LTELTENRNROption1Option3Option5Option7Option4Option2S1-basedN2/N3(newinterface)Multi-RATDualConnectivity(MR-DC)DCbetweenLTE&NROption3E-UTRA-NRDC(EN-DC)Option7NG-RANE-UTRA-NRDC(NGEN-DC)Option4NR-E-UTRADC(NE-DC)EN-DCNGEN-DCNE-DC2019-4||Page12WhatisDualConnectivity?MeNBSeNBMCGPCell[Carrier1]MCGSCell[Carrier2]SCGPSCell[Carrier3]SCGScell[Carrier4]MCGMasterCellGroupSCGSecondaryCellGroupDualconnectivityfirstintroducedforLTEin3GPPrel12/13.2019-4||Page13—DC(DualConnectivity)—AUEinRRC_CONNECTEDisconfiguredwithDualConnectivitywhenconfiguredwithaMasterandaSecondaryCellGroup—PCell(PrimaryCell)—Thecell,operatingontheprimaryfrequency,inwhichtheUEeitherperformstheinitialconnectionestablishmentprocedureorinitiatestheconnectionre-establishmentprocedure,orthecellindicatedastheprimarycellinthehandoverprocedure—SCell(SecondaryCell)—Acell,operatingonasecondaryfrequency,whichmaybeconfiguredonceanRRCconnectionisestablishedandwhichmaybeusedtoprovideadditionalradioresources—MCG(MasterCellGroup)—ForaUEnotconfiguredwithDC,theMCGcomprisesallservingcells.ForaUEconfiguredwithDC,theMCGconcernsasubsetoftheservingcellscomprisingofthePCellandzeroormoresecondarycells—SCG(SecondaryCellGroup)—ForaUEconfiguredwithDC,thesubsetofservingcellsnotpartoftheMCG,i.e.comprisingofthePSCellandzeroormoreothersecondarycells—PSCell(PrimarySecondaryCell)—TheSCGcellinwhichtheUEisinstructedtoperformrandomaccesswhenperformingtheSCGchangeprocedure—SpCell(SpecialCell)—ForDualConnectivityoperationthetermSpecialCellreferstothePCelloftheMCGorthePSCelloftheSCG,otherwisethetermSpecialCellreferstothePCellDualConnectivityDefinitions2019-4||Page14目录5G的应用5G无线网络结构5G物理层基本知识物理资源物理信道和参考信号MassiveMIMO的基本知识NSA网络基本知识2019-4||Page15物理资源—5G使用的频段—可变的子载波间隔—帧结构—部分带宽BWP—峰值速率计算2019-4||Page16NR频段FR1-BandnumberULDLDuplexn11920–1980MHz2110–2170MHzFDDn21850–1910MHz1930–1990MHzFDDn31710–1785MHz1805–1880MHzFDDn5824–849MHz869–894MHzFDDn72500–2570MHz2620–2690MHzFDDn8880–915MHz925–960MHzFDDn20832–862MHz791–821MHzFDDn28703–748MHz758–803MHzFDDn382570–2620MHz2570–2620MHzTDDn412496–2690MHz2496–2690MHzTDDn501432–1517MHz1432–1517MHzTDDn511427–1432MHz1427–1432MHzTDDn661710–1780MHz2110–2200MHzFDDn701695–1710MHz1995–2020MHzFDDn71663–698MHz617–652MHzFDDn741427–1470MHz1475–1518MHzFDDn75N/A1432–1517MHzSDLn76N/A1427–1432MHzSDLn773.3–4.2GHz3.3–4.2GHzTDDn783.3–3.8GH