US 12,363,524 B2
IP-based system supporting multi-USIMs
Kamel M. Shaheen, Vancouver, WA (US)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 17/918,883
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed Apr. 14, 2021, PCT No. PCT/JP2021/015426
§ 371(c)(1), (2) Date Oct. 13, 2022,
PCT Pub. No. WO2021/210601, PCT Pub. Date Oct. 21, 2021.
Claims priority of provisional application 63/012,033, filed on Apr. 17, 2020.
Prior Publication US 2023/0276223 A1, Aug. 31, 2023
Int. Cl. H04W 8/18 (2009.01); H04W 60/00 (2009.01); H04W 88/06 (2009.01)
CPC H04W 8/183 (2013.01) [H04W 60/005 (2013.01); H04W 88/06 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A user equipment (UE) for wireless communication, the UE comprising:
one or more non-transitory computer-readable media storing computer-executable instructions; and
at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the computer-executable instructions to:
detect, by a multiple-universal subscriber identity module (multi-USIM) application of the UE at a Mobile Terminal (MT) level, a presence of a first USIM belonging to a first core network and a second USIM belonging to a second core network;
send an Internet Protocol-based (IP-based) multi-USIM registration message to an IP-based multi-USIM server or Application Function (AF);
receive an access stratum (AS) and non-access stratum (NAS) UE capability update request from a first base station associated with the first core network; and
send a UE capability update response to the first base station for updating AS and NAS capabilities of the UE,
wherein the IP-based multi-USIM registration message comprises at least one of:
an indication of the presence of the first and second USIMs,
information pertaining to identification, connectivity, and preference information of the UE, and
capabilities associated with the first and the second USIMs.