US 11,997,550 B2
Method and device for performing handover in wireless communication system
Sangbum Kim, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd, (KR)
Appl. No. 17/311,556
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
PCT Filed Dec. 4, 2019, PCT No. PCT/KR2019/017033
§ 371(c)(1), (2) Date Jun. 7, 2021,
PCT Pub. No. WO2020/116938, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 10-2018-0155471 (KR), filed on Dec. 5, 2018.
Prior Publication US 2022/0030485 A1, Jan. 27, 2022
Int. Cl. H04W 76/30 (2018.01); H04W 36/00 (2009.01)
CPC H04W 36/00837 (2018.08) [H04W 36/0079 (2018.08); H04W 76/30 (2018.02)] 12 Claims
OG exemplary drawing
 
1. A method, performed by a user equipment (UE), the method comprising:
receiving, from a source cell, a conditional handover configuration via a radio resource control (RRC) message, the conditional handover configuration information including configuration of a plurality of candidate cells for a conditional handover and conditions associated with the plurality of candidate cells;
evaluating whether the conditions associated with the plurality of candidate cells are met;
in case that a condition associated with a first candidate cell is met, performing a first handover to the first candidate cell based on the conditional handover configuration, the first candidate cell being one of the plurality of candidate cells for the conditional handover; and
in case that the first handover to the first candidate cell fails, performing a second handover to a second candidate cell based on the conditional handover configuration, the second candidate cell being one of the plurality of candidate cells for the conditional handover.