US 12,133,157 B2
System and methods for user equipment storing rejected network slice selection assistance information per access type
Lalith Kumar, Bangalore (IN); Koustav Roy, Bangalore (IN); Arijit Sen, Bangalore (IN); Danish Ehsan Hashmi, 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 Jul. 27, 2022, as Appl. No. 17/815,502.
Claims priority of application No. 202141034003 (IN), filed on Jul. 28, 2021; and application No. 202141034003 (IN), filed on Jun. 29, 2022.
Prior Publication US 2023/0031697 A1, Feb. 2, 2023
Int. Cl. H04W 48/02 (2009.01); H04W 60/00 (2009.01)
CPC H04W 48/02 (2013.01) [H04W 60/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from an access and mobility management function (AMF) over a first access type, a Non-Access Stratum (NAS) message including a rejected single network slice selection assistance information (S-NSSAI) with a cause for the S-NSSAI not allowable due to maximum number of UEs reached;
storing the rejected S-NSSAI in a rejected network slice assistance information (NSSAI) list for at least one rejected S-NSSAI due to maximum number of UEs reached, wherein the rejected NSSAI list is maintained per access type; and
determining whether to attempt to request an S-NSSAI in a registration procedure over the access type based on whether the S-NSSAI is stored in the rejected NSSAI list for the access type for the registration procedure,
wherein the access type is one of a 3rd generation partnership project (3GPP) access or a non-3GPP access.