US 12,262,264 B2
Timing and synchronization parameters for handover in non-terrestrial network
Changhwan Park, San Diego, CA (US); Bharat Shrestha, San Diego, CA (US); Liangping Ma, San Diego, CA (US); Xiao Feng Wang, San Diego, CA (US); and Peter Gaal, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 1, 2022, as Appl. No. 17/901,673.
Claims priority of provisional application 63/263,571, filed on Nov. 4, 2021.
Prior Publication US 2023/0133633 A1, May 4, 2023
Int. Cl. H04W 36/00 (2009.01); H04W 56/00 (2009.01); H04W 36/24 (2009.01)
CPC H04W 36/0072 (2013.01) [H04W 56/0045 (2013.01); H04W 36/249 (2023.05)] 30 Claims
OG exemplary drawing
 
1. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
receive, from a source base station, configuration information for a handover, wherein the configuration information indicates, for a target non-terrestrial cell, timing and synchronization parameters including a scheduling timing offset, a round trip time between a reference point and a target base station associated with the target non-terrestrial cell, satellite ephemeris information, an ephemeris validity duration associated with the satellite ephemeris information, common timing advance parameters, and a common timing advance validity duration associated with the common timing advance parameters; and
perform the handover with the target base station associated with the target non-terrestrial cell based at least in part on the timing and synchronization parameters for the target non-terrestrial cell.