US 12,225,492 B2
Paging for multiple SIMS
Genadi Velev, Darmstadt (DE); Apostolis Salkintzis, Athens (GR); and Andreas Kunz, Ladenburg (DE)
Assigned to Lenovo (Singapore) Pte. Ltd., New Tech Park, Singapore (SG)
Appl. No. 17/768,214
Filed by Lenovo (Singapore) PTE. LTD., New Tech Park (SG)
PCT Filed Oct. 11, 2019, PCT No. PCT/EP2019/077666
§ 371(c)(1), (2) Date Apr. 11, 2022,
PCT Pub. No. WO2021/069085, PCT Pub. Date Apr. 15, 2021.
Prior Publication US 2023/0093965 A1, Mar. 30, 2023
Int. Cl. H04W 68/12 (2009.01); H04W 60/00 (2009.01); H04W 8/18 (2009.01)
CPC H04W 60/005 (2013.01) [H04W 68/12 (2013.01); H04W 8/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the apparatus to:
receive a registration request initiating a first registration to register a user equipment (“UE”) with a communication network using a first subscriber identity module (“SIM”) of the UE;
determine that the UE is registered with the communication network via a second registration using a second SIM in of the UE;
identify a mobility management (“MM”) function serving the second registration;
determine whether the MM function is able to serve the first registration;
initiate a relocation to transfer the first registration to the MM function in response to determining that the MM function is able to serve the first registration; and
update an MM context in the MM function corresponding to the second registration to contain an identifier of the first registration, in response to determining that the MM function is unable to serve the first registration.