US 12,477,415 B2
Method and device for supporting network optimization in next-generation mobile communication system
Sangbum Kim, Suwon-si (KR); Soenghun Kim, Suwon-si (KR); and Sangyeob Jung, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 18/019,172
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Sep. 13, 2021, PCT No. PCT/KR2021/012434
§ 371(c)(1), (2) Date Feb. 1, 2023,
PCT Pub. No. WO2022/065775, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 10-2020-0123762 (KR), filed on Sep. 24, 2020.
Prior Publication US 2023/0413135 A1, Dec. 21, 2023
Int. Cl. H04W 36/36 (2009.01); H04W 36/00 (2009.01); H04W 36/30 (2009.01)
CPC H04W 36/0079 (2018.08) [H04W 36/302 (2023.05); H04W 36/305 (2018.08); H04W 36/362 (2023.05)] 12 Claims
OG exemplary drawing
 
1. A method performed by a terminal in a wireless communication system, the method comprising:
transmitting, to a base station, capability information indicating support of a condition-based handover;
receiving, from the base station, configuration information on the condition-based handover based on the capability information;
performing a first handover to a first cell, in case that a predetermined condition is satisfied based on the configuration information;
performing a cell selection operation based on a failure of the first handover;
performing a second handover to a second cell based on the second cell being selected by the cell selection operation; and
transmitting, to the base station, a radio link failure (RLF) report, after a radio resource control (RRC) connection with the base station is established,
wherein the RLF report includes first RLF information associated with the failure of the first handover and second RLF information associated with the failure of the second handover,
wherein specific information included in the first RLF information is excluded from the second RLF information, and
wherein the specific information includes at least one of information on a source cell, information on a connection failure type, or information on an RLF cause.