US 12,267,739 B2
Method for operating failure timer during conditional handover in wireless communication system
June Hwang, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/312,879
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Dec. 6, 2019, PCT No. PCT/KR2019/017187
§ 371(c)(1), (2) Date Jun. 10, 2021,
PCT Pub. No. WO2020/122509, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 10-2018-0162003 (KR), filed on Dec. 14, 2018.
Prior Publication US 2022/0038976 A1, Feb. 3, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 36/36 (2009.01)
CPC H04W 36/0079 (2018.08) [H04W 36/362 (2023.05)] 6 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station, a radio resource control (RRC) reconfiguration message including a conditional reconfiguration for at least one candidate target cell, wherein the conditional reconfiguration includes an RRC reconfiguration for each of the at least one candidate target cell, wherein the RRC reconfiguration for each of the at least one candidate target cell includes a timer associated with a failure of a conditional handover and random access channel (RACH) configuration information, and wherein the conditional reconfiguration includes at least one measurement identifier (ID), each of the at least one measurement ID being associated with an event and the event being associated with an offset value;
performing a measurement based on the conditional reconfiguration; and
in case that an event associated with a measurement ID among the at least one measurement ID is fulfilled based on the measurement:
selecting a target cell fulfilling the event among the at least one candidate target cell for execution of the conditional reconfiguration; and
executing the conditional reconfiguration for the conditional handover to the target cell, and starting the timer.