US 12,192,944 B2
Method and systems for receiving incoming service notification for second SIM network using first SIM network
Lalith Kumar, Bengaluru (IN); Kailash Kumar Jha, Bengaluru (IN); Alok Kumar Jangid, Bengaluru (IN); and Swapnil Santosh Nivendkar, Bengaluru (IN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/594,824
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Apr. 29, 2020, PCT No. PCT/KR2020/005681
§ 371(c)(1), (2) Date Oct. 29, 2021,
PCT Pub. No. WO2020/222531, PCT Pub. Date Nov. 5, 2020.
Claims priority of application No. 201941017245 (IN), filed on Apr. 30, 2019; and application No. 201941017245 (IN), filed on Apr. 27, 2020.
Prior Publication US 2022/0210756 A1, Jun. 30, 2022
Int. Cl. H04W 76/12 (2018.01); H04W 8/18 (2009.01); H04W 60/00 (2009.01); H04W 88/06 (2009.01)
CPC H04W 60/005 (2013.01) [H04W 8/18 (2013.01); H04W 76/12 (2018.02); H04W 88/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of a multi-Subscriber Identity Module (SIM) enabled User Equipment (UE), the method comprising:
registering the UE with a network of a first SIM;
establishing a secure communication tunnel between the UE and the network of the first SIM;
establishing a connection between the UE and a network of a second SIM through the secure communication tunnel established between the UE and the network of the first SIM and through one of an evolved Packet Data Gateway (ePDG) and a Non-3GPP Inter-Working Function (N3IWF);
registering the UE with the network of the second SIM over the connection established between the UE and the network of the second SIM; and
receiving a message indicating downlink data pending at the network of the second SIM, over the secure communication tunnel between the UE and the network of the first SIM.