US 12,477,574 B2
System and method for conditional handover by a user equipment in a 5G communication network
Jajohn Mathew Mattam, Bangalore (IN); and Fasil Abdul Latheef, Bangalore (IN)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Aug. 17, 2022, as Appl. No. 17/890,012.
Application 17/890,012 is a continuation of application No. PCT/KR2022/012204, filed on Aug. 16, 2022.
Claims priority of application No. 202141037328 (IN), filed on Aug. 17, 2021; and application No. 202141037328 (IN), filed on Mar. 28, 2022.
Prior Publication US 2023/0059448 A1, Feb. 23, 2023
Int. Cl. H04W 74/04 (2009.01); H04W 36/00 (2009.01); H04W 74/0833 (2024.01); H04W 36/36 (2009.01); H04W 74/0838 (2024.01)
CPC H04W 74/04 (2013.01) [H04W 36/0058 (2018.08); H04W 36/00835 (2018.08); H04W 74/0841 (2013.01); H04W 36/362 (2023.05); H04W 74/0833 (2013.01); H04W 74/0838 (2024.01)] 16 Claims
OG exemplary drawing
 
1. A method for conditional handover by a user equipment (UE) in a 5G communication network, the method comprising:
receiving, by the UE, a conditional handover command, and an associated condition from a source cell;
receiving, by the UE, a plurality of target cell configurations, from the source cell, including details for a plurality of target cells meeting a conditional handover criterion;
evaluating, by the UE, the associated condition for the conditional handover;
assigning priority to the plurality of target cells configured in the conditional handover during a cell selection procedure;
selecting a first target cell for the conditional handover from among the plurality of target cells based on the assigned priority;
detecting, by the UE, a failure in connecting to the first target cell before expiry of a timer; and
selecting a second target cell for conditional handover from among the plurality of target cells based on the assigned priority.