US 12,439,373 B2
Method and system to determine service in incoming message
Lalith Kumar, Bangalore (IN); and Mahmoud Watfa, Staines (GB)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Apr. 26, 2022, as Appl. No. 17/660,804.
Claims priority of application No. 202141019376 (IN), filed on Apr. 27, 2021; and application No. 202141019376 (IN), filed on Mar. 30, 2022.
Prior Publication US 2022/0346060 A1, Oct. 27, 2022
Int. Cl. H04W 68/00 (2009.01); H04W 8/18 (2009.01); H04W 84/04 (2009.01)
CPC H04W 68/005 (2013.01) [H04W 8/183 (2013.01); H04W 84/042 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for a user equipment (UE) including a multi-universal subscriber identity module (MUSIM) in a wireless communication system, the method comprising:
performing a registration operation to a public land mobile network (PLMN) on both of a 3rd generation partnership project (3GPP) access network and a non-3GPP access network;
receiving, from an access and mobility management function (AMF), a notification message over the non-3GPP access network; and
transmitting, to the AMF, at least one of: a service request message over the 3GPP access network and a notification response message, over the non-3GPP access network, indicating inability of the UE to send the service request message.