TD-LTE技术原理的介绍-图文

SCDMAHSDPAHSUPAGCDMAISCDMAxCDMA20001XEV-DOEV-DORev.AEVDORevBde802.16m2G2.5G2.75G3G3.5G3.75G3.9G专业.专注.SLTELTELTELTELTELTE600LTE2100LTE2100SUMTSUMTSUMTSUMTSLTEGSMGSMGSMLTEGSMGSMGSMLTEGSM800LTE900GSMLTEGSMLTEGSMLTE00GSM1800LTE900GSM9002015YLTE900LTE18005adioAccessNetworkTSGRANRadioAccessNetworkTSGSAServicestemsAspectsTSGCNCoreNetworkTerminalsRANWGRadioLayerspecSAWGServicesCTWGMMCCSMluGERANWGRadioAspectsRANWGRadioLayerspecRadioLayerRRspecSAWGArchitectureCTerworkingwithexternalnetworksGERANWGProtocolAspectsSAWGSecurityGERANWGTerminalTestingRANWGlubspeclurspeclucUTRANOMrequirementsCTWGMAPGTPBCHSSSAWGCodecSmartCardApplicationAspectsRANWGRadioPerformanceocolaspectsSAWGTelecomManagementRANWGMobileTerminalnformanceTestingStudyItemStageFinishWorkItemStage2专业.专注.MobileNetworksBeyondHSPAEVDO产业链聚集在统一N eNSNWGPRWGPoCWGPoCWGIODTWGIOTFCTlicationsProofofConceptpartiallycompliantVendortestUEorUErtnerIODTCompliantoverkeysubsetVendorUEpartnerpairsIOTliantMultiplePartnersVendorsandUETrialsCompliantformfactorUEProofofConceptMSIMOMMIMOMRRMMMobilityMMM4TDDMIODTMstartMaFeaturesetMbAgreebaselinereportingMIODTpleteIOTMTestsdefinedreportingMIOTCompleteCurrentectionsforFCTFriendlyCustomerTrialsLTEAsiaLTEUSALTELondonIEEECommsM1M2WebcastCTIAWebsiteLTEBerlinNGMNConfIODTPRinedMMaSetupRadioMbEndto专业.专注.专业.专注.eATISMWCCTIALTEBerlinLTEAmericasLTEAsiaUDPSAPXAPeNBsationDownlinktoUplinkSwitchpointeriodicitymsmsmsmsmsmsmsSubframenumberDDDDDDDUUUUUDDDDU9UDDDDDDSUUUDSSUUDDSSUDDDSSUUUDDDSUUDDDDSUDDDDDSUUUDSUConfigurationNormalcyclicprefixDwPTSGP32193212OFDMsymbols1OFDMsymbolsUpPTSExtendedcyclicprefixDwPTS38910389GP8321721tNscRBNsc19FDMAsymbolsDLNsymbOFDMsymbolsDLRBk=NRBNsc−1ULRBk=NRBNsc−1ResourceblockDLRBNsymb×NscresourceelementsNsymbNscresourceelementsDLRBNRBNsc专业.专注.专业.专注.klULRBNRBNscResourceelement(k,lk=0l=0DLl=Nsymb−1k=0l=0ULl=Nsymb−1下行物理资源temmobilityIntrafrequencyhandoverInterfrequencybandLTEUTRANInterfrequencyhandoverdiffbandLTErkingReselectionLTEUTRANPShandoverLTEUTRANPShandoverUTRANLTELTEUTRAN－>LTEUTRANLTELTEGERANLTEGERANGERAN－>LTEPShandoverGERAN->LTE课程内容A专业.专注.MOFDM的正交性—频域描述1T∫T0(1expjωnt)exp-jωmt)dt=⎨ —DM专业.专注.专业.专注.uencyTimefrequencyresourceforUserTimeTimefrequencyresourceforcyTimefrequencyresourceforUser1TimefrequencyresourceforUser2TimeTimefrequencyresourceforUserQAM降低峰均比 ingle-1-1.5-2-2-1.5-1-0.500.511.501010111110001000110-0.5-1-1.5-00111.510.51011111011101010101111-1LTE64QAMConstellationMap11001111000111100111101-0.510010110011100011110000111100110100111100101000010100010000000000000111010011000010000010010110011100010100010110110110110101.5-1-0.500.511.539专业.专注.or应性较高;劣势:连续性和实时性较低;传输效率较低;41 EallydeterminewhichUEsaresupposedtoreceiveDLSCHssionandonwhatresourcesULtodynamicallydeterminewhichUEsaretotransmitdataonUL-SCHandonwhichuplinkresourcesMAC调度illustrationofULschedulingSourceeNodeBTargetNodeBTargeteNodeBMovingUEBeforeHandoverUEInEAfterHandoverMovingHardhandoverThatisbreakbefore专业.专注