METHOD AND TERMINAL FOR SUPPORTING SERVICE CONTINUITY AFTER PERFORMING HANDOVER

WIPO Patent Application WO/2017/171189

A1

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.

WO/2006/103517	UTILIZING A SAME TARGET CELL DURING CIRCUIT-SWITCHED AND PACKET SWITCHED HANDOVER
JP2004159300	HIGH SPEED DEDICATED PHYSICAL CONTROL CHANNEL FOR USE IN WIRELESS DATA TRANSMISSION FROM MOBILE DEVICE
WO/2019/219158	CONTROL OF HANDOVERS OVER DIFFERENT CONNECTIONS OF A HYBRID ACCESS USER TERMINAL

YOUN MYUNGJUNE (KR)
KIM HYUNSOOK (KR)

PCT/KR2016/013137

October 05, 2017

November 15, 2016

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LG ELECTRONICS INC (KR)

H04W36/00; H04W36/02; H04W36/08

KR20150096463A	2015-08-24
CN101686563A	2010-03-31
KR20110124164A	2011-11-16
KR20120027155A	2012-03-21
KR20130117265A	2013-10-25

ENVISION PATENT & LAW FIRM (KR)

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