US 12,245,183 B2
Method and apparatus for binding a plurality of subscriber identity modules (SIMS) associated with a user equipment (UE) to optimize network resources
Narendranath Durga Tangudu, Bangalore (IN); Kundan Tiwari, Bangalore (IN); Lalith Kumar, Bangalore (IN); and Rajavelsamy Rajadurai, Bangalore (IN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/631,415
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Jul. 31, 2020, PCT No. PCT/KR2020/010143
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/020936, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 201941031238 (IN), filed on Aug. 1, 2019; and application No. 201941031238 (IN), filed on Jul. 27, 2020.
Prior Publication US 2022/0279470 A1, Sep. 1, 2022
Int. Cl. H04W 60/00 (2009.01); H04W 8/18 (2009.01); H04W 12/106 (2021.01); H04W 12/45 (2021.01); H04W 12/50 (2021.01); H04W 60/04 (2009.01); H04W 84/04 (2009.01)
CPC H04W 60/04 (2013.01) [H04W 8/183 (2013.01); H04W 12/106 (2021.01); H04W 12/45 (2021.01); H04W 12/50 (2021.01); H04W 84/042 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE) associated with a plurality of subscriber identity modules (SIMs) in a wireless network, the method comprising:
transmitting, to a network entity, a registration request for a first SIM of the plurality of SIMs and a registration request for a second SIM of the plurality of SIMs;
receiving a first non-access stratum (NAS) security context and a first temporary identifier associated with the first SIM from the network entity through a first NAS connection of the first SIM in response to transmitting the registration request for the first SIM, and receiving a second NAS security context and a second temporary identifier associated with the second SIM from the network entity through a second NAS connection of the second SIM in response to transmitting the registration request for the second SIM;
identifying that the first SIM and the second SIM are registered on a same public land mobile network (PLMN) of the wireless network;
determining one of the first NAS connection or the second NAS connection for transmitting an indication message indicating that the first SIM and the second SIM are located on the UE; and
based on the determination, transmitting the indication message and a message authentication code for the indication message through one of the first NAS connection and the second NAS connection to the network entity,
wherein, in case that the indication message is transmitted through the first NAS connection, the indication message includes the second temporary identifier and the message authentication code is generated using the second NAS security context, and
wherein, in case that the indication message is transmitted through the second NAS connection, the indication message includes the first temporary identifier and the message authentication code is generated using the first NAS security context.