公开(公告)号：US20190268818A1

公开(公告)日：2019-08-29

申请号：US16343479

申请日：2017-08-23

Applicant: LG ELECTRONICS INC.

Inventor： Seungjune YI ,  Jeongkyun YUN ,  Sangwon KIM

IPC: H04W36/08 ,  H04W36/02 ,  H04W80/08 ,  H04W76/27 ,  H04W74/08 ,  H04W36/00

Abstract: A method for performing handover in a wireless communication system and a device therefor are disclosed. Specifically, the method for performing handover by a user equipment (UE) without a wireless local area network (WLAN) termination (WT) change from a source eNodeB (eNB) to a target eNodeB (eNB) in a wireless communication system, the method includes transmitting an end-marker request for requesting retransmission of an end-marker packet to the target eNB when a loss of the end-marker packet is detected after the handover without the WT change is started, and retransmitting the end-marker request or performing a recovery procedure for the end-marker packet when the end-marker packet is not received from the target eNB after the transmitting the end-marker request.