US 12,232,070 B2
System and method of dual-SIM UEs operation in 5G networks
Shubhranshu Singh, Heidelberg (DE); and Takahito Yoshizawa, Boom (BE)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/607,108
Filed by NEC Corporation, Tokyo (JP)
PCT Filed May 1, 2020, PCT No. PCT/EP2020/062215
§ 371(c)(1), (2) Date Oct. 28, 2021,
PCT Pub. No. WO2020/225160, PCT Pub. Date Nov. 12, 2020.
Claims priority of application No. 19172624 (EP), filed on May 3, 2019.
Prior Publication US 2022/0159607 A1, May 19, 2022
Int. Cl. H04W 60/00 (2009.01); H04W 8/20 (2009.01); H04W 8/22 (2009.01); H04W 48/18 (2009.01)
CPC H04W 60/005 (2013.01) [H04W 8/20 (2013.01); H04W 8/22 (2013.01); H04W 48/18 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method performed by a User Equipment (UE) comprising a plurality of Subscriber Identity Modules (SIMs), the method comprising:
transmitting to an Access and Mobility Management Function (AMF) apparatus, in a first Non-Access Stratum (NAS) message, first information indicating a Multi-SIM capability of the UE; and
receiving, from the AMF apparatus, in a second NAS message, second information including a Multi-SIM related value, based on the first information and a Multi-SIM feature supported by network,
wherein the Multi-SIM related value is configured to indicate whether the Multi-SIM capability of the UE indicated by the first information is also supported by the network.