US 12,464,422 B2
Serving cell change procedure utilizing multiple candidate target cells
Faranaz Sabouri-Sichani, Aalborg (DK); Ahmad Awada, Munich (DE); Srinivasan Selvaganapathy, Bangalore (IN); Jing He, Beijing (CN); and Amaanat Ali, Espoo (FI)
Assigned to NOKIA TECHNOLOGIES OY, Espoo (FI)
Appl. No. 18/026,205
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Sep. 15, 2020, PCT No. PCT/CN2020/115415
§ 371(c)(1), (2) Date Mar. 14, 2023,
PCT Pub. No. WO2022/056689, PCT Pub. Date Mar. 24, 2022.
Prior Publication US 2023/0370910 A1, Nov. 16, 2023
Int. Cl. H04W 36/00 (2009.01); H04W 74/0833 (2024.01)
CPC H04W 36/0072 (2013.01) [H04W 36/00835 (2018.08); H04W 74/0833 (2013.01)] 19 Claims
OG exemplary drawing
 
10. A method comprising:
receiving, from a second device, configuration information associated with a serving cell change procedure of the first device, the configuration information indicating at least a first candidate cell managed by a third device and a second candidate cell managed by a fourth device available for the serving cell change procedure;
performing, during the serving cell change procedure, a first random access procedure to access the first candidate cell and a second random access procedure to access the second candidate cell; and
accessing to a target cell determined from the first candidate cell and the second candidate cell after the serving cell change procedure is completed,
wherein performing the first random access procedure and the second random access procedure comprises:
determining whether a first random access response of the first random access procedure is received by the first device within a first time interval, the first time interval being shorter than a second time interval configured by the second device for indicating a failure in the serving cell change procedure; and
in accordance with a determination that the first random access response is not received within the first time interval, performing the second random access procedure.