【中兴】TD-LTE Physical layer specifications.pdf

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1、TD-LTEPhysicallayerspecificationsYuBin-ZTEStandardDept.2008年12月19日OutlineGeneraldescriptionsLTEPhysicallayerFramestructurerelatedDownlinkrelatedUplinkrelatedConfidential▲TDTD-LTELTE-Advanced(TDD)标准第一阶段第二阶段第三阶段CDMAbasedtechnologyOFDMbasedTechnologyBasicVersionEnhancedVersionLTEVersion4GVersion

2、3GPP(R4)3GPP(R5/6/7/8)3GPP(R8)LTE-AHSPA/MBMSVoice/dataHSPA+TD-LTE(TDD)2008-20112001--20022003--20082005--2008平滑演进Confidential▲LTETDD标准发展历程3GPP为了保持未来10年在宽带移动系统中的竞争力，从2004年12月开始LTE项目，2008年12月正式发布标准Confidential▲3GPPLong-termEvolution——TargetSignificantlyincreasedpeakdataratee.g.100Mbps(downlink)and50M

3、bps(uplink)Increase“celledgebitrate”whilstmaintainingsamesitelocationsasdeployedtodaySignificantlyimprovedspectrumefficiency(e.g.2-4xRel6)PossibilityforaRadio-accessnetworklatency(user-planeUE–RNC(orcorrespondingnodeaboveNodeB)-UE)below10msSignificantlyreducedC-planelatency(e.g.includingthepossi

4、bilitytoexchangeuser-planedatastartingfromcamped-statewithatransitiontimeoflessthan100ms(excludingdownlinkpagingdelay))Scaleablebandwidth1.4M,3M,5M,10M,15M,20MSupportforinter-workingwithexisting3Gsystemsandnon-3GPPspecifiedsystemsFurtherenhancedMBMSReducedCAPEXandOPEXincludingbackhaulCosteffect

5、ivemigrationfromRel-6UTRAradiointerfaceandarchitectureReasonablesystemandterminalcomplexity,cost,andpowerconsumption.SupportoffurtherenhancedIMSandcorenetworkBackwardscompatibilityishighlydesirable,butthetradeoffversusperformanceand/orcapabilityenhancementsshouldbecarefullyconsidered.Efficientsu

6、pportofthevarioustypesofservices,especiallyfromthePSdomain(e.g.VoiceoverIP,Presence)SystemshouldbeoptimizedforlowmobilespeedbutalsosupporthighmobilespeedOperationinpairedandunpairedspectrumshouldnotbeprecludedPossibilityforsimplifiedco-existencebetweenoperatorsinadjacentbandsaswellascross-borderc

7、o-existenceConfidential▲3GPPLong-termEvolution——NetworkArchitectureHorizontalNetworkSCPASPEnterpriseAppServerServiceServicesNetworkmanagementlayerMobileNetworkWirelessAccessSoftswitchSoftswitchControl