公开(公告)号：US20190007500A1

公开(公告)日：2019-01-03

申请号：US16026291

申请日：2018-07-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dongmyoung Kim ,  Myung Ki Shin ,  Soohwan Lee ,  Seung- Ik Lee

IPC: H04L29/08

Abstract: Provided is a method of relocating a session and service continuity (SSC) mode 2 protocol data unit (PDU) session anchor by a session management function (SMF) device, the method including determining a relocation of a PDU session anchor; releasing a PDU session associated with an old PDU session anchor by sending, to a user equipment (UE), N1 SM information including a PDU session release command message through an access and mobility management function (AMF) device; and selecting a new PDU session anchor to establish a PDU session associated with the new PDU session anchor.