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METHOD FOR MOVING IMS VOICE SESSION ON NON-3GPP TO 3GPP ACCESS
METHOD FOR MOVING IMS VOICE SESSION ON NON-3GPP TO 3GPP ACCESS
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机译:在非3GPP上移动IMS语音会话的方法到3GPP访问
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摘要
Provided in one embodiment of the present specification is a method for user equipment (UE) for an Internet protocol multimedia subsystem (IMS) voice session. The method can comprise the steps of: establishing an IMS voice session by using a non 3GPP interworking function (N3IWF) or an enhanced packet data gateway (ePDG) through non-3rd Generation Partnership Project (3GPP) access; determining that voice is not supported on a current NG-RAN on the basis of that the UE must moves the IMS voice session to a 3GPP access; and handing over a protocol data unit (PDU) session for the IMS voice session of the non-3GPP access to an evolved packet core (EPC) of the 3GPP access on the basis of the determination.
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