US 12,309,652 B2
Method and apparatus for inactivity handling in mobility in wireless communication system
Jian Xu, Seoul (KR); Jongwoo Hong, Seoul (KR); Daewook Byun, Seoul (KR); and Seokjung Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/797,693
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Feb. 8, 2021, PCT No. PCT/KR2021/001637
§ 371(c)(1), (2) Date Aug. 4, 2022,
PCT Pub. No. WO2021/158090, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 10-2020-0014836 (KR), filed on Feb. 7, 2020.
Prior Publication US 2023/0079242 A1, Mar. 16, 2023
Int. Cl. H04W 36/00 (2009.01); H04W 76/27 (2018.01)
CPC H04W 36/0085 (2018.08) [H04W 76/27 (2018.02)] 10 Claims
OG exemplary drawing
 
1. A method performed by a master node (MN) serving a wireless device with a secondary node (SN) in a wireless communication system, the method comprising:
receiving, from the SN, a first message comprising primary secondary cell (PSCell) mobility conditions for one or more PSCells in the SN;
transmitting, to the wireless device, a second message comprising a configuration for a PSCell mobility, the configuration comprising the PSCell mobility conditions for the one or more PSCells;
receiving, from the wireless device, a third message notifying a completion of the PSCell mobility to a PSCell among the one or more PSCells,
wherein the PSCell mobility to the PSCell is completed based on a PSCell mobility condition for the PSCell being satisfied, and
wherein the third message notifying the completion of the PSCell mobility to the PSCell comprises a PSCell identity (ID) of the PSCell, and state information that the wireless device enters an inactive state in the SN after the completion of the PSCell mobility; and
transmitting, to the SN, a fourth message comprising the PSCell ID of the PSCell, and the state information that the wireless device entered the inactive state in the SN after the completion of the PSCell mobility.