Apparatus and method for supporting access to private mobile communication network and carrier mobile communication network

Patent metadata

Field	Value
Publication number	US-12507191-B2
Application number	US-202318518153-A
Country	US
Kind code	B2
Filing date	Nov 22, 2023
Priority date	Oct 5, 2018
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

The disclosure provides a method of registering a user equipment (UE) at a second network via a first network, the method including: receiving, from the UE, a registration request message including at least one of first network identification (ID) information, ID information of the UE in the first network, second network ID information, and ID information of the UE in the second network; selecting an authentication server function (AUSF) of the first network which is configured to perform a first authentication procedure of service subscription authentication for the UE in the first network; performing the first authentication procedure with the AUSF of the first network and unified data management (UDM) of the first network; determining, based on a result of the first authentication procedure, whether to perform a second authentication procedure of service subscription authentication for the UE in the second network; performing, based on a result of the determining, the second authentication procedure with an AUSF of the second network and UDM of the second network; and transmitting, to the UE, a registration acceptance message including information of at least one of the result of the first authentication procedure and a result of the second authentication procedure.

First claim

What is claimed is:

1 . A method of registering a user equipment (UE) at a second network via a first network, the method comprising:
transmitting, to an access and mobility management function (AMF) of the first network, a registration request message including:
identification (ID) information of the UE in the first network,
second network ID information, and
ID information of the UE in the second network; and
receiving, from the AMF of the first network, a registration acceptance message including:
information on a result of a first authentication procedure of service subscription authentication for the UE in the first network, and
information on a result of a second authentication procedure of service subscription authentication for the UE in the second network,
wherein the first authentication procedure is performed by the AMF of the first network with an authentication server function (AUSF) of the first network and a unified data management (UDM) of the first network, and wherein in case that the first authentication procedure is successfully performed and in case that the second network ID information and the ID information of the UE in the second network are obtained from the registration request message by the AMF of the first network, the second authentication procedure is performed by the AMF of the first network directly with an AUSF of the second network and a UDM of the second network.

2 . The method of claim 1 , further comprising:
receiving, from the AMF of the first network, a request of UE authentication information stored in the UE; and transmitting, to the AMF of the first network, the UE authentication information.

3 . The method of claim 1 , further comprising:
using a first network service, at the UDM of the first network and a policy control function (PCF) of the first network, based on the result of the first authentication procedure.

4 . The method of claim 1 , further comprising:
using a second network service, at the UDM of the first network and a PCF of the first network, based on the result of the second authentication procedure.

5 . The method of claim 1 , wherein the first network is a non-public network, and the second network is a public network.

6 . The method of claim 1 , wherein the first network is a public network, and the second network is a non-public network.

7 . The method of claim 1 , further comprising:
receiving, from a base station of the first network, system information; determining, based on the system information, whether service provision in the second network is available; and in case that the service provision in the second network is available, transmitting the registration request message including the second network ID information and the ID information of the UE in the second network.

8 . A user equipment (UE) of a first network which registers the UE at a second network via the first network, the UE comprising:
at least one transceiver; at least one processor coupled with the transceiver; and at least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor to cause the UE to:
transmit, to an access and mobility management function (AMF) of the first network, a registration request message including:
identification (ID) information of the UE in the first network,
second network ID information, and
ID information of the UE in the second network; and

receive, from the AMF of the first network, a registration acceptance message including:
information on a result of a first authentication procedure of service subscription authentication for the UE in the first network, and
information on a result of a second authentication procedure of service subscription authentication for the UE in the second network,

wherein the first authentication procedure is performed by the AMF of the first network with an authentication server function (AUSF) of the first network and a unified data management (UDM) of the first network, and wherein in case that the first authentication procedure is successfully performed and in case that the second network ID information and the ID information of the UE in the second network are obtained from the registration request message by the AMF of the first network, the second authentication procedure is performed by the AMF of the first network directly with an AUSF of the second network and a UDM of the second network.

9 . The UE of claim 8 , wherein the at least one processor is further configured to:
receive, from the AMF of the first network, a request of UE authentication information stored in the UE; and transmit, to the AMF of the first network, the UE authentication information.

10 . The UE of claim 8 , wherein the at least one processor is further configured to:
use a first network service, at the UDM of the first network and a policy control function (PCF) of the first network, based on the result of the first authentication procedure.

11 . The UE of claim 8 , wherein the at least one processor is further configured to:
use a second network service, at the UDM of the first network and a PCF of the first network, based on the result of the second authentication procedure.

12 . The UE of claim 8 , wherein the first network is a non-public network, and the second network is a public network.

13 . The UE of claim 8 , wherein the first network is a public network, and the second network is a non-public network.

14 . The UE of claim 8 , wherein the at least one processor is further configured to:
receive, from a base station of the first network, system information; determine, based on the system information, whether service provision in the second network is available; and in case that the service provision in the second network is available, transmit the registration request message including the second network ID information and the ID information of the UE in the second network.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Park Jungshin
• Moon Sangjun
• Baek Youngkyo
• Lee Jicheol

Classifications

• H04W48/20

  Selecting an access point · CPC title

• H04W12/06

  Authentication · CPC title

• H04W12/71

  Hardware identity · CPC title

• H04W8/186

  Processing of subscriber group data · CPC title

• H04W60/005 Primary

  Multiple registrations, e.g. multihoming · CPC title