US 12,289,786 B2
Method and device for handover in next generation mobile communication system
June Hwang, Suwon-si (KR); and Himke Van Der Velde, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/442,969
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Mar. 27, 2020, PCT No. PCT/KR2020/004170
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/197307, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0035983 (KR), filed on Mar. 28, 2019; application No. 10-2019-0036220 (KR), filed on Mar. 28, 2019; and application No. 10-2020-0037139 (KR), filed on Mar. 26, 2020.
Prior Publication US 2022/0191753 A1, Jun. 16, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 36/08 (2009.01); H04W 36/30 (2009.01); H04W 36/36 (2009.01); H04W 76/20 (2018.01)
CPC H04W 76/20 (2018.02) [H04W 36/0058 (2018.08); H04W 36/0061 (2013.01); H04W 36/0064 (2023.05); H04W 36/00838 (2023.05); H04W 36/08 (2013.01); H04W 36/302 (2023.05); H04W 36/362 (2023.05)] 15 Claims
OG exemplary drawing
 
1. A method performed by a source node in a wireless communication system, the method comprising:
transmitting, to a target node, a handover request message including at least one first identifier of at least one first target cell for a conditional handover;
receiving, from the target node, a handover request acknowledge message including a handover command message and at least one second identifier of at least one second target cell for the conditional handover accepted by the target node based on the at least one first identifier, wherein a handover command message includes configuration information on the at least one second target cell for the conditional handover;
generating condition information for the conditional handover, the condition information including a measurement identity associated with a measurement object and a report configuration; and
transmitting, to a terminal, a radio resource control (RRC) reconfiguration message including the handover command message and the condition information for the conditional handover.