h_arq技术在第三代移动通信系统中的应用

60210006ApplicationsoftheH-ARQTechnologyin3GTelecommunicationSystemsNiuYu,LuoQingquan(StateKeyLaboratoryofMobileCommunication,SoutheastUniversity,Nanjing210006,China)AbstractThispaperintroducesthebasicprinciplesofH-ARQtechnologyanditsclassificationandthendiscussesitsdifferentapplicationsinthethirdgeneration(3G)standards,e.g.WCDMAR99,HSDPAandCDMA2000.Italsocomparestheseapplicationswiththoseinprevioustelecommunicationstandards.FinallythispaperdiscussesthedevelopmentandevolutionofH-ARQinfuturecommunicationsystems.KeywordsH-ARQ;FastHARQ;HSDPA;CDMA2000ARQFECARQAutomaticRepeatreQuestFECForwardErrorCorrection2005-08-12TurboARQFECHybrid-ARQARQFEC3GH-ARQH-ARQ[1]H-ARQARQFEC20061196/200611561ACKNACKIH-ARQIIH-ARQIH-ARQIIH-ARQDiversityCombiningChaseCombiningD.Chase,[3]IRIncrementalRedundancyFullIRCodeCombiningIIH-ARQIIIType-IIIH-ARQIIIRComplementaryPuncturedCodeIIIH-ARQ3GVoIPVoiceoverIP3GCDMAH-ARQ3GH-ARQPARQPhysicalARQH-ARQFast-HARQH-ARQFECACKNACKACKNACK13GH-ARQWCDMARelease99ITAge/Jan.15,200662SAWH-ARQFECTurboARQL2RLCRNCUER992Mb/sH-ARQL2H-ARQSNRerror-freedeliveryH-ARQWCDMA,R4R5R6R5HSDPA10.8Mb/sHSDPAR99HS-DSCHHS-SCCHHS-DPCCHHS-DSCHHS-SCCHNode-BUEUEHARQHS-DSCH2msNode-BUEHS-DPCCHUENode-BCQIChannelQualityIndicatorACK/NACKHSDPAH-ARQNode-BUEIubHSDPAHS-DSCHNSAWH-ARQR99SAWNHS-DSCH15SF162msTTITransportTimeInterval8HSDPAphase461[4]HSDPAHS-DSCHHSDPAIIH-ARQChaseCombiningIRIRCC[2]≤0.5≥0.5IR13dBCDMA2000IS-2000IS-856123/200611563IS-2000IS-95C307.2kb/sH-ARQL2LACRLPRadioLinkProtocolSR-HARQ3GCDMA20001XEVEvolutionIS-856EV-DOIS-2000ReleaseCEV-DVIS-856CDMA20001XEV-DODataOnlyRelease02.4Mb/s153.6kb/sEV-DOIS-856ReleaseA3.1Mb/s1.8Mb/sEV-DOH-ARQFECTurboNSAWN441249Type—IIChaseCombiningEV-DOFTCForwardTrafficChannel16QPSK8PSK16QAM1.66msslotACKCRCACKNACKFECACK/NACKN-SWARQ2[5]EV-DO153.6kb/sH-ARQ1024bitCRC1/5TurboQPSK162.498304chipPreamblePilotMAC4ACKNACK2.40.62CRCACKACKNACKRelease0EV-DOReleaseAH-ARQNSAWN3TTI153.6kb/sACKITAge/Jan.15,2006644slots6.64ms112FECCDMA20001XEV-DVCDMA20001XEV-DOIS-2000ReleaseCEV-DV1XL3EV-DVF-PDCHF-PDCCHR-CQICHR-ACKCHHSDPAEV-DV3.1Mb/sReleaseD1.8Mb/sEV-DVH-ARQNSAWEV-DOIIIH-ARQTurboQCTCQuasiComplementaryTurboCodeCodeCombining[1]QCTCQPSKIIIH-ARQChaseCombingIIH-ARQ1~2dBHSDPAEV-DOEV-DVH-ARQHSDPAEV-DOEV-DVN-SAWN-SAW4N-SAWIIH-ARQIIH-ARQIIIH-ARQQCTCChaseCombingCodeCombiningChaseCombiningCodeCombiningH-ARQH-ARQH-ARQH-ARQAMCOFDMMIMO1.CDMA20001X.:,2001.2KoldingTE,PedersenKI,WigardJ,etal,HighSpeedDownlinkPacketAccess:WCDMAEvolution.IEEEVehicularTechnologySocietyNews,February2003.3ChaseD.CodeCombining–AMaximum-LikelihoodDecod-ingApproachforCombininganArbitraryNumberofNoisyPackets.IEEETran.Communication,1985,33(5):385393.4DottlingM,MichelJ,RaafB.HybridARQandAdaptiveModulationandCodingforHighSpeedDownlinkPacketAccess,PMIRCIEEE2002.53GPP2C.S0024CDMA2000HighRatePacketDataAirInterfaceSpecification,Version4.02002.