The following sections describe the SRVCC from LTE to 3GPP2 1XCS and LTE to 3GPP UTRAN/GERAN CS networks. Single Radio Voice Call Continuity From LTE SRVCC service for LTE comes into the picture when a single radio User Equipment (UE) accessing IMS- anchored voice call services switches from...
VoLTE网络架构 2G/3GMGWMSSGERAN/UTRANIMSMGWMGCFTASBGCFMRFPIMS SGSN UELTE HLRIMSHSSS-CSCFI-CSCF HLR/HSS LTEHSS PCRF MME P-CSCF MRFC MRFP eNodeB SGW PGW A-BGW VoLTE网元列表 网元名称 eNodeB 网元所属域 LTE无线EPC核心网EPC核心网EPC核心网R4核心网互通关口局设备互通关口局设备IMS核心网媒体域IMS...
VoLTE_SRVCC基本原理与系统结构 2G/3G GERAN/UTRANUELTE eNodeB MGWMSS VoLTE网络架构 IMSMGWMGCF IMSBGCF SGSN TAS HLR HLR/HSS IMS- S-CSCF HSS LTE- I-CSCF HSS MRFP MME PCRFSGWPGW P-CSCFMRFC A-BGW MRFP VoLTE网元列表 网元名称 eNodeBMMES/P-GWPCRFMSS/eMSSMGCFIM-MGWI-SBCBCFBGFP-CSCFI/S-...
IMS-HSSHLRLTE-HSSPGWMMEPCRFGERAN/UTRANMSSSGSNMGWP-CSCFA-BGWI-CSCFS-CSCFTASUEMRFCMRFPIMS-MGWMGCFBGCFMRFPVoLTE网元列表网元名称网元所属域网元功能归属网元eNodeBLTE无线支持VoLTE专用承载,支持SRVCC功能eNodeBMMEEPC核心网支持SRVCC功能MMES/P-GWEPC核心网支持VoLTE专用承载S/P-GWPCRFEPC核心网支持Rx接口用于建...
3gpp对原3gpp r7的dual radio vcc机制进行了修改,以支持epc中的这种single radio 场景,并称为srvcc技术,包括e - utran与utran/geran之间的srvcc以及e - utran 与 3gpp2 lxcs 的 srvcc ,还包括 utran 的 hspa 与 utran/geran 的 cs 域间的 srvcc。srvcc方案已比较成熟,msc server assisted mid-call feature...
eSRVCC(EnhancedSingleRadioVoiceCallContinuity):3GPPR8标准中提出,提供基亍IMS的LTE话音业务。终端在移劢到LTE未覆盖的区域是,语音需要切换到CS域并保证业务的连续性。LTE语音解决方案LTE语音解决方案语音、数据在LTE进行语音在CS进行数据在LTE进行SRVCCCSFBSvLTEVoLTE-Only多模多待多模单待多模单待MGCF/MGWSCCASIMSCSCFLTE...
Figure 2.SRVCC Call Flow The following notes on the flow definition are derived from section 6 of the 3GPP spec and for details we recommend you refer to TS 23.216: ongoing VoIP session over the IMS access leg established over E-UTRAN access ...
Figure 2.SRVCC Call Flow The following notes on the flow definition are derived from section 6 of the 3GPP spec and for details we recommend you refer to TS 23.216: ongoing VoIP session over the IMS access leg established over E-UTRAN access ...
SRVCC for 1xRTT 4 SRVCC for 1xRTT Typical SRVCC Call Flow Figure 2: SRVCC Call Flow Flows The following notes on the flow definition are derived from section 6 of the 3GPP spec and for details we recommend you refer to TS 23.216: 1. ongoing VoIP session over the IMS access leg ...
User equipment (UE) includes processing circuitry, where to configure the UE for Single Radio Voice Call Continuity (SRVCC) handover from an LTE network to a legacy network with cir