US 11,889,456 B2
Network slice-specific authentication and authorization
Mahmoud Watfa, Staines (GB)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Mar. 29, 2021, as Appl. No. 17/216,445.
Claims priority of application No. 2004657 (GB), filed on Mar. 30, 2020.
Prior Publication US 2021/0306972 A1, Sep. 30, 2021
Int. Cl. H04W 60/04 (2009.01); H04W 12/06 (2021.01); H04W 12/08 (2021.01); H04W 48/08 (2009.01); H04W 48/18 (2009.01)
CPC H04W 60/04 (2013.01) [H04W 12/06 (2013.01); H04W 12/08 (2013.01); H04W 48/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of a user equipment (UE), the method comprising:
transmitting, by the UE to a network entity, a registration request message including a registration type information indicating a periodic registration updating or a mobility registration updating;
receiving, by the UE from the network entity, a registration accept message including a pending network slice selection assistant information (NSSAI) and a registration result information with an indicator indicating a network slice-specific authentication and authorization (NSSAA) is to be performed;
identifying, by the UE, that a previously received allowed NSSAI as invalid based on the registration accept message; and
initiating, by the UE, a service request procedure in case that the UE in an idle mode obtains an indication that an access stratum connection is established between the UE and the network entity.