Policies related to non-public networks

Patent metadata

Field	Value
Publication number	US-12598464-B2
Application number	US-202118553704-A
Country	US
Kind code	B2
Filing date	Mar 31, 2021
Priority date	Mar 31, 2021
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

Apparatuses, methods, and systems are disclosed for policies related to non-public networks. One method includes receiving, at an access and mobility management function, a request to register a device. The method includes, in response to receiving the request to register the device, transmitting, by the access and mobility management function, a user equipment subscription data request to a unified data management. The method includes, in response to transmitting the user equipment subscription data request to the unified data management, receiving a user equipment subscription data response including a first identifier wherein the first identifier identities a stand-alone non-public network. The method includes performing an access and mobility management policy association establishment with a policy control function based on the user equipment subscription data. The method includes transparently transmitting by the policy control function a policy based on the first identifier.

First claim

The invention claimed is:

1 . A method performed by an access and mobility management function (AMF) that is part of a public land mobile network (PLMN) and not part of a stand-alone non-public network (NPN), the method comprising:
receiving a request to register a user equipment (UE) from the UE; in response to receiving the request to register the UE, transmitting a UE subscription data request to a unified data management (UDM); in response to transmitting the UE subscription data request to the UDM, receiving a UE subscription data response comprising a first identifier, wherein the first identifier identifies the stand-alone NPN; performing an access and mobility management policy association establishment with a policy control function (PCF) based on the UE subscription data; and after performing the access and mobility management policy association establishment, transparently receiving a UE policy section identifier list comprising the first identifier from the UE.

2 . The method of claim 1 , wherein the UE subscription data is from a unified data repository.

3 . An access and mobility management function (AMF) that is part of a public land mobile network (PLMN) and not part of a stand-alone non-public network (NPN), the AMF comprising:
at least one memory; and at least one processor coupled with the at least one memory and configured to cause the AMF to:
receive a request to register a user equipment (UE) from the UE;
in response to receiving the request to register the UE, transmit a UE subscription data request to a unified data management (UDM);
in response to transmitting the UE subscription data request to the UDM, receive a UE subscription data response comprising a first identifier, wherein the first identifier identifies the stand-alone NPN;
perform an access and mobility management policy association establishment with a policy control function (PCF) based on the UE subscription data; and
after performing the access and mobility management policy association establishment, transparently receive a UE policy section identifier comprising the first identifier from the UE.

4 . The AMF of claim 3 , wherein the UE subscription data is from a unified data repository.

5 . A method performed by an access and mobility management function (AMF) that is part of a public land mobile network (PLMN) and not part of a stand-alone non-public network (NPN), the method comprising:
receiving a request to register a user equipment (UE) from the UE; in response to receiving the request to register the UE, transmitting a UE subscription data request to a unified data management (UDM); and in response to transmitting the UE subscription data request to the UDM, receiving a UE subscription data response comprising a first identifier, wherein the first identifier identifies the stand-alone NPN.

6 . The method of claim 5 , further comprising performing an access and mobility management policy association establishment with a policy control function (PCF) based on the UE subscription data.

7 . The method of claim 6 , further comprising, after performing the access and mobility management policy association establishment, transparently receiving a UE policy section identifier comprising the first identifier from the UE.

8 . The method of claim 5 , wherein the UE subscription data is from a unified data repository.

9 . An access and mobility management function (AMF) that is part of a public land mobile network (PLMN) and not part of a stand-alone non-public network (NPN), the AMF comprising:
at least one memory; and at least one processor coupled with the at least one memory and configured to cause the AMF to:
receive a request to register a user equipment (UE) from the UE;
in response to receiving the request to register the UE, transmit a UE subscription data request to a unified data management (UDM); and
in response to transmitting the UE subscription data request to the UDM, receive a UE subscription data response comprising a first identifier, wherein the first identifier identifies the stand-alone NPN.

10 . The AMF of claim 9 , wherein the at least one processor is configured to cause the AMF to perform an access and mobility management policy association establishment with a policy control function (PCF) based on the UE subscription data.

11 . The AMF of claim 10 , wherein the at least one processor is configured to cause the AMF to, after performing the access and mobility management policy association establishment, transparently receive a UE policy section identifier comprising the first identifier from the UE.

12 . The AMF of claim 9 , wherein the UE subscription data is from a unified data repository.

Assignees

• Lenovo Singapore Pte Ltd

Inventors

• Atarius Roozbeh
• Velev Genadi
• Karampatsis Dimitrios
• Salkintzis Apostolis

Classifications

• H04W40/246

  Connectivity information discovery · CPC title

• H04W40/02

  Communication route or path selection, e.g. power-based or shortest path routing · CPC title

• H04W12/37

  Managing security policies for mobile devices or for controlling mobile applications · CPC title

• H04W48/18

  Selecting a network or a communication service · CPC title

• H04W12/086 Primary

  using security domains · CPC title