US Patent No. 10,993,152

APPARATUS AND METHOD FOR SUPPORTING HANDOVER WITH MULTI-CONNECTIVITY IN WIRELESS COMMUNICATION SYSTEM


Patent No. 10,993,152
Issue Date April 27, 2021
Title Apparatus And Method For Supporting Handover With Multi-connectivity In Wireless Communication System
Inventorship Hyun-Jeong Kang, Seoul (KR)
Sang-Wook Kwon, Suwon-si (KR)
Kyung-Kyu Kim, Suwon-si (KR)
Young-Joong Mok, Suwon-si (KR)
Sang-Kyu Baek, Yongin-si (KR)
Anil Agiwal, Suwon-si (KR)
Young-Bin Chang, Anyang-si (KR)
June Hwang, Incheon (KR)
Assignee Samsung Electronics Co., Ltd., Suwon-si (KR)

Claim of US Patent No. 10,993,152

1. A method for supporting handover of a user equipment (UE) in a wireless communication system, the method comprising:receiving, from a serving cell, a radio resource control (RRC) message;
identifying whether the RRC message includes a conditional handover configuration, wherein the conditional handover configuration includes first information on at least one target candidate cell and second information on condition of conditional handover execution;
in case that the RRC message includes the conditional handover configuration, determining whether a link quality value of the serving cell is lower than a first threshold associated with the second information and a link quality value of at least one cell among the at least one target candidate cell is higher than a second threshold associated with the second information;
selecting the at least one cell among the at least one target candidate cell as a target cell in response to the determination that the link quality value of the serving cell is lower than the first threshold associated with the second information and the link quality value of the at least one cell among the at least one target candidate cell is higher than the second threshold associated with the second information; and
performing handover to the target cell.