IP Library › Granted Patent US 12,309,583
Granted Patent B2
US 12,309,583 · App. 18/592,312 · Granted May 20, 2025

Network slice-specific authentication and authorization

Inventors: Mahmoud Watfa (Staines, GB); Ricky Kumar Kaura (Staines, GB)
Assignee: Samsung Electronics Co., Ltd.
H04W12/06H04W84/042
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Quick Facts
Patent No.
US 12,309,583
App. No.
18/592,312
Granted
May 20, 2025
Kind
B2
Abstract

There is disclosed a method for a user equipment (UE) in a wireless communication system, receiving pending network slice selection assistance information (NSSAI) including one or more single NSSAIs (S-NSSAIs), and applying the received pending NSSAI to at least one second public land mobile network (PLMN) in a registration area, wherein the UE is assigned to the registration area comprising two or more tracking areas (TAs) including at least a first set of TAs belonging to a first public land mobile network (PLMN) to which the UE is registered.

Claims (20)

1. A method for communication by an access and mobility management function (AMF) in a wireless communication system, the method comprising:

receiving, from a user equipment (UE), a registration request message; and

transmitting, to the UE, a registration accept message related to a registration area, wherein the registration accept message includes pending network slice selection assistance information (NSSAI),

wherein in case that the registration area contains tracking area identifiers (TAIs) belonging to different public land mobile networks (PLMNs) which are equivalent PLMNs, the pending NSSAI is applicable to the equivalent PLMNs in the registration area.

2. The method of claim 1 , wherein the pending NSSAI includes one or more single-NSSAIs (S-NSSAIs).

3. The method of claim 2 , wherein the pending NSSAI is applicable to tracking areas (TAs) of at least one PLMN that serves the one or more S-NSSAIs in the pending NSSAI.

4. The method of claim 1 , wherein in case that the registration area contains the TAIs belonging to the different PLMNs which are the equivalent PLMNs, the pending NSSAI is stored by the UE for each of the equivalent PLMNs.

5. The method of claim 4 , wherein any stored pending NSSAI is replaced by the UE with the pending NSSAI received in the registration accept message for storing the pending NSSAI for each of the equivalent PLMNs.

6. The method of claim 1 , wherein the received pending NSSAI is stored by the UE for a first PLMN, and the received pending NSSAI is applicable to the first PLMN.

7. An apparatus of an access and mobility management function (AMF) for communication in a wireless communication system, the apparatus comprising:

a transceiver, and

a processor coupled to the transceiver, wherein the transceiver is configured to:

receive, from a user equipment (UE), a registration request message; and

transmit, to the UE, a registration accept message related to a registration area, wherein the registration accept message includes pending network slice selection assistance information (NSSAI),

wherein, in case that the registration area contains tracking area identifiers (TAIs) belonging to different public land mobile networks (PLMNs) which are equivalent PLMNs, the pending NSSAI is applicable to the equivalent PLMNs in the registration area.

8. The apparatus of claim 7 , wherein the pending NSSAI includes one or more single NSSAIs (S-NSSAIs).

9. The apparatus of claim 8 , wherein the pending NSSAI is applicable to tracking areas (TAs) of at least one PLMN that serves the one or more S-NSSAIs in the pending NSSAI.

10. The apparatus of claim 8 , wherein in case that the registration area contains the TAIs belonging to the different PLMNs which are the equivalent PLMNs, the pending NSSAI is stored by the UE for each of the equivalent PLMNs.

11. The apparatus of claim 10 , wherein any stored pending NSSAI is replaced by the UE with the pending NSSAI received in the registration accept message for storing the pending NSSAI for each of the equivalent PLMNs.

12. The apparatus of claim 7 , wherein the received pending NSSAI is stored by the UE for a first PLMN, and the received pending NSSAI is applicable to the first PLMN.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 8, 2025
From: WATFA, MAHMOUD; KAURA, RICKY KUMAR
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 071066/0466 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2024
From: WATFA, MAHMOUD
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 066613/0249 →
Priority Claims (2)
GB 2007738 · May 22, 2020 · national
GB 2106419 · May 5, 2021 · national
Continuity (2)
Continuation 17328959 · May 24, 2021
Related Publication 20240292215A1 · Aug 29, 2024
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