VoLTE题库(含解析)-中高级必看

VOLTEVOLTE1LTEBA.CSFBB.VOLTEC.SvLTE3VoLTECA.MMEB.SGSNC.IMSD.EPCVoLTEGSMALTEIMSIPLTEEPCIMSVoLTEVoLTEIMSAPNQCIQoSQCI=5QCI=1VoLTEIMSEPCIMS5VOLTEBA.4G+B.4G+C.11VoLTEDDDA.SGWEPCIMSB.IMSEPCPGWC.SGWPGWEPCD.EPCIMSIMS8VOLTEC?A.23B.35C.0.529IMSBAIETFB3GPPCETSIDAT&T12DA.CSFBIMSB.CSFBSGsC.VoLTE/SRVCCIMSCSD.eSRVCC15SRVCCCSFBABCA.IMSB.CSC.D.LTE10volteABCABC2volteLTE+EPCIPIMS64G4G74G4G13LTEPSCSLTEVOIP14LTEVOIPIMSIMS1IMSI-CSCFS-CSCFUE2UEP-CSCFIPCSCF3SIPSIPS-CSCFAAP-CSCFBS-CSCFCI-CSCDIBCF4IMSIMSUESIPAAP-CSCFBS-CSCFCI-CSCFDPCRF5HSSS-CSCFCAP-CSCFBS-CSCFCI-CSCFDIBCF6CSCFABDAI-CSCFBS-CSCFCPGWDP-CSCF7P-CSCFABDAAttachBDHCPCUEDUE8VOLTEABCDA.B.C.D.VOLTE()IMSCS9IMSACDACSCFBMRSCMGCFDMGWVOLTE1IP23TTIbundling4DRX1RoHCCA.QCI9B.QCI5C.QCI1D.QCI2ROCHIPVoLTE2VoLTEAA.RoHCB.SPSC.TTIbundling3RTPUDPIPIPIPv4/40ByteIPv6AA.12Byte8Byte20ByteC.12Byte12Byte20ByteB.8Byte8Byte20ByteD.12Byte20Byte20Byte25TDLTEVoIPDA.B.C.D.4AMR3ABCA(TransientState)C(SilentPeriod)B(Talkspurt)DIDLEAMR31)(TransientState)20ms97RTCPROHC2)(Talkspurt)20ms2.2.320ms3)(SilentPeriod)160msSID2AABCMAC850bit24VOLTECA.20msB.80msC.160msD.40msE.320ms30SPS3:1SPSMCS(A)A15B25C30D5LTEPDCCHVoIP1.3%VoIP20ms20msTDDHARQRTTFDDTDD2DL:2UL19ms21ms3DL:1UL25ms15ms3TTIDTTIA1B2C3D4TTIbundlingUETTIbundlingHARQ1VoIPSPSTTIbundlingTTIbundling21TTI4TTIHARQ44dBTDD2dB3TDD20ms2DL:2ULTTIbundling8TTIbundlingTTIATBTransportBlockA.B.1C.D.227TTIbundlingLTEVoIPTTIbundling(A)A.B.C.D.29TTIBundling(A)(C)ABCD31TTIbundlingTDD20msATTIbundlingA2DL:2ULB1DL:3ULC3DL:1ULD1DL:1UL6RLCQCI5BA.UMB.AMC.TMQCI=1QCI=1QCI=2RLCUMSIPQCI=5RLCAM21VoLTECA.SRB1+SRB2+1xAMDRB+2xUMDRBB.SRB0+SRB1+2xAMDRB+2xUMDRBC.SRB1+SRB2+2xAMDRB+1xUMDRBD.SRB0+SRB1+1xAMDRB+2xUMDRBSRB1+SRB2+2xAMDRB+1xUMDRBUMDRBQCI=12AMDRBQCIQCI=5QCI=8/9SRB1+SRB2+2xAMDRB+2xUMDRB2UMDRBQCI=1QCI=22AMDRBQCIQCI=5QCI=8/9LTEQCI8/9QCI89QCI5SIP23QCIPacketErrorLossRateBA.QCI2B.QCI1C.QCI6D.QCI5E.QCI320VOLTEABCDA.B.RoHCC.RLCD.TTIBundling22VOLTEABCDEFAQosBAMR-WBCSIP(SessionInitiationProtocol)&SDPDRoHCIPESPSFeSRVCC(EnhancedSingleRadioVoiceCallContinuity)26TTIbundling(ABCDE)ATTIBundlingBUERSRQRSRPTTIBundlingCSRSSINRTTIBundlingDUERSRQRSRPSRSSINRTTIBundlingEUE10/MHzTTIBundling28TTIbundlingLTEVoIP(ABCD)A4BTTIPDCCHCTTI4TTIPHICHD4TTI9VoLTEABCA.QCI9B.QCI5C.QCI1D.QCI210UEUERRCABA.SRB1B.SRB2C.SRB3D.SRB411VoLTEABCDAB.QCI1/2C.RLCD.IMS12VoLTEABCDA./B.TTIbundlingC.eSRVCCD.SPS18QCI=5Non-GBR()19RoHCVOLTEIPVoLTE4QCI8~9:GBR14PDCCH15SPSLTEPDCCHVoIP1.3%()16QCIQoSclassidentifierQCI1QCI5()17RRC-IDLERRC-CONNECTEDDRX()DRXDiscontinuousReceptionUEUEDRXDRXUEDRXUEDRXDRXUEPDCCHPhysicalDownlinkControlChannelUEUEDRXRRCidleDRXRRCConnectedRRCidleUEVOLTE1AMR-WBBA10msB20msC5msD1ms12AMR-NBAA20msB10msC40msD30ms13AMR-NBAA8kHzB8HzC16kHzD16Hz14AMR-WBAA20msB10msC40msD30ms15AMR-WBCA8kHzB8HzC16kHzD16Hz11VolteBA10msB20msC30msD40ms2VoLTESIPDA.408B.487C.503D.180sip1xx=1001801811821832xx=200OK2023xx=3003013023053804xx=400401407402)403404405406407408410413414URI415416URI420SIP421423480481/482483484485486487488491493S/MIME5xx=500501SIP502503504505SIP5136xx=6006036046063VoLTESIPDA.UEUEC.B.D.5VoLTES1(SIP)UECA.RRC_DETACHB.RRC_CONNECTEDC.RRC_IDLED.RRC_ATTACHVoLTES1(SIP)(1)UERRC_IDLE(2)RRC_IDLEUERRCEPCIMSQCI=8/9QCI=5QCI=1ERAB(3)UERRCERAB6P-CSCFINVITEAA100tryingB100OKC200tryingD200OK7Precondition(A)AINVITERequestB100TryingC183responseD200OK8DAINVITERequestB100TryingC183responseDUPDATE16EARSRPBSINRCRSRQDPRBE17VoLTEUEVoLTEIMSBAQCI1+QCI8BQCI5+QCI9CQCI2+QCI9DQCI2+QCI8SRB1+SRB2+2xAMDRB+1xUMDRBUMDRBQCI=12AMDRBQCIQCI=5QCI=8/99SIPABCDABCD10IMSABCAP-CSCFBS-CSCFCDINVITE4VoLTE:VoLTEVoLTEA,DA.MMEB.SRVCCC.LTED.IMS18VoLTEE-UTRANVoLTEQCI=7/819SRB1+SRB2+2xAMDRB+2xUMDRBSRB1RRCSRB2QCI2SRB1+SRB2+2xAMDRB+1xUMDRBUMDRBQCI=12AMDRBQCIQCI=5QCI=8/9SRB1+SRB2+2xAMDRB+2xUMDRB2UMDRBQCI=1QCI=22AMDRBQCIQCI=5QCI=8/920SIP200SIP211802GConnect22BYE2GDisconnect()SRVCC1ACSA.SRVCC(SingleRadioVoiceCallContinuity)B.EPCC.MMED.IMSSRVCCLTEIMS2G/3GCS3SRVCCBA.SRVCCUELTEB.R9SRVCCCSLTEC.SRVCCMSCSMSCD.SRVCCIMSSRVCCTD-LTE3GPPUTRAN/GERANSRVCCLTELTEIMSVoiceoverLTELTELTESRVCCSRVCCSingleRadioVoiceCallContinuity3GPPVoLTEUELTE/Pre-LTE2G/3GCSUEIMSVoIPCSLTEGSM/WCDMALTEGSM/WCDMAMMTelMMTelPS3GPPLTEGSM/WCDMAPSCSSRVCCCSSRVCCLTEMMEMSCServerIPSvLTEGSM/WCDMAPSCSLTEGBRGuaranteedBitRateGBRLTEGSMDTMDualTransferModeSRVCC1EnodeB2EnodeBGSMSRVCC3EnodeB4MMEQCI=1GBRCS5MMEMSCServerPSCSIMSISTN-SR6MSCServerMSCServerBSCGSM7MSCServerIMSMMTelSTN-SR8IMSMMTel9MSCServerMMEPSCS10MMEEnodeB11EnodeB12GSMBSCPSSGSNMMEPS13BSCMSCServer14MSCServerMME15MMESGw/PGwLTEGSMWCDMASRVCCPSPSPSPSS3/S4GnPSPSLTEWebLTEVoLTELTE2GLTE3GeSRVCCSRVCC4ESRVCCNCC=111BCC=0012GBSICCA.50B.55C.57D.60111001=32+16+8+0+0+1=57111001=715eSRVCCB2CA.30L-115G-95C.1012L-110G-95B.32L-110G-95D.1012L-115G-9510TD-LTEGSM3GPPR10CACSFBBSRVCCCESRVCCDCSCF11LTEAAVOLTESRVCCBCSFBC12ACS.A.SRVCCB.EPCC.MMED.IMS174GSRVCCDAWIMAX-ANRCSFBSRVCCIMSBCDMA1X-AMRCSFBSRVCCIMSCSvLTETDSCDMA-AMRSRVCCIMsDSvLTECSFBSRVCCIMS18(A)SrvccACSFBBSvLTECGSMDTDSCDMA-AMR19eSRVCCSRVCCeSRVCCDA20msB40msC160msD300msVoLTE/eSRVCC41SINRVoLTESINR-3dBLTE2206msDataForwarding//X2/S133:1200RoHC26%SPSSPS4SRVCC300msSRVCCS