Credential storage and selection of credentials for non-public network

Inventors: Nivedya Parambath Sasi (Bengaluru, NC); Rohini Rajendran (Bengaluru, IN); Takahito Yoshizawa (Boom, BE); Toshiyuki Tamura (Tokyo, JP)

Assignee: NEC CORPORATION

H04W12/06 H04W12/72 H04W88/02

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Quick Facts

Patent No.: US 12713234
App. No.: 17/617,458
Granted: Aug 18, 2026
Kind: B2

External Links

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Abstract

This disclosure related to the aspects of 5G system that supports Public Land Mobile Network and Non-Pubic Network especially in the context of how the UE ( 110 ) can handle multiple subscriptions when connecting to a Non-Public Network.

Claims (20)

1 . A User Equipment (UE) that has multiple Universal Subscriber Identity Modules (USIM)s, the UE comprising:

a memory configured to store instructions; and

a processor configured to execute the instructions to:

handle multiple subscriptions for a Stand-alone Non-Public Network (SNPN);

select the SNPN based on received System Information including a Public Land Mobile Network identifier (PLMN ID) and a Network identifier (NID) for the SNPN;

send, to an Access and Mobility Management Function (AMF), a Registration Request message including a Routing Indicator, wherein the AMF routes to a Unified Data Management (UDM) associated with the SNPN based on the Routing Indicator; and

access the SNPN using credentials, the credentials being owned by a credentials holder, the credentials holder being separate from both the UDM and the SNPN.

2 . The UE according to claim 1 , wherein the credentials holder is configured to authenticate the UE using the credentials.

3 . The UE according to claim 1 , wherein the UDM manages subscription data of the UE for the SNPN.

4 . The UE according to claim 1 , wherein the credentials holder uses the PLMN ID.

5 . The UE according to claim 1 , wherein the SNPN is a stand-alone 5G system deployed for non-public use.

6 . A method of a User Equipment (UE) that has multiple Universal Subscriber Identity Modules (USIM)s, the method comprising:

handling multiple subscriptions for a Stand-alone Non-Public Network (SNPN);

selecting the SNPN based on received System Information including a Public Land Mobile Network identifier (PLMN ID) and a Network identifier (NID) for the SNPN;

sending, to an Access and Mobility Management Function (AMF), a Registration Request message including a Routing Indicator, wherein the AMF routes to a Unified Data Management (UDM) associated with the SNPN based on the Routing Indicator; and

accessing the SNPN using credentials, the credentials being owned by a credentials holder, the credentials holder being separate from both the UDM and the SNPN.

7 . The method according to claim 6 , wherein the credentials holder is configured to authenticate the UE using the credentials.

8 . The method according to claim 6 , wherein the UDM manages subscription data of the UE for the SNPN.

9 . The method according to claim 6 , wherein the credentials holder uses the PLMN ID.

10 . The method according to claim 6 , wherein the SNPN is a stand-alone 5G system deployed for non-public use.