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1. (WO2017171189) METHOD AND TERMINAL FOR SUPPORTING SERVICE CONTINUITY AFTER PERFORMING HANDOVER

Pub. No.:    WO/2017/171189    International Application No.:    PCT/KR2016/013137
Publication Date: Fri Oct 06 01:59:59 CEST 2017 International Filing Date: Wed Nov 16 00:59:59 CET 2016
IPC: H04W 36/00
H04W 36/02
H04W 36/08
Applicants: LG ELECTRONICS INC.
엘지전자 주식회사
Inventors: YOUN, Myungjune
윤명준
KIM, Hyunsook
김현숙
Title: METHOD AND TERMINAL FOR SUPPORTING SERVICE CONTINUITY AFTER PERFORMING HANDOVER
Abstract:
One disclosure of the present specification provides a method for supporting service continuity after a terminal performs a handover. The method may comprise: a step of transmitting, when re-assigned from a source user plane (UP) functional node to a target UP functional node in accordance with performing a handover to a target base station, a PDU session creation request message to create a new PDU session with the target UP functional node; a step of receiving a PDU session creation response message including a newly allocated second IP address; a step of transmitting a tunneling request message including information on the newly allocated second IP address and information on a service flow requiring service continuity; and a step of encapsulating a packet, which has been generated with an existing first IP address by an upper layer of the terminal, with a new second IP address by a lower layer of the terminal and transmitting the encapsulated packet to the tunneling entity.