Authorization method, policy control function device, and access and mobility management function device

Patent metadata

Field	Value
Publication number	US-2023029714-A1
Application number	US-202217965018-A
Country	US
Kind code	A1
Filing date	Oct 13, 2022
Priority date	Apr 13, 2020
Publication date	Feb 2, 2023
Grant date	—

Abstract

An authorization method includes receiving, by a policy control function device of a relay terminal, a request message from an access and mobility management function device of the relay terminal. The request message includes an identifier of a remote terminal and an identifier of the relay terminal. The method also includes determining, by the policy control function device, an authorization result based on the identifier of the remote terminal and the identifier of the relay terminal. The authorization result indicates whether the relay terminal and the remote terminal are authorized to establish a relay service relationship. The method further includes sending, by the policy control function device, the authorization result to the access and mobility management function device.

First claim

What is claimed is:

1 . An authorization method, comprising:
receiving, by a policy control function device of a relay terminal, a request message from an access and mobility management function device of the relay terminal, wherein the request message comprises an identifier of a remote terminal and an identifier of the relay terminal; determining, by the policy control function device, an authorization result based on the identifier of the remote terminal and the identifier of the relay terminal, wherein the authorization result indicates whether the relay terminal and the remote terminal are authorized to establish a relay service relationship; and sending, by the policy control function device, the authorization result to the access and mobility management function device.

2 . The authorization method according to claim 1 , wherein the determining, by the policy control function device, the authorization result based on the identifier of the remote terminal and the identifier of the relay terminal comprises:
obtaining, by the policy control function device, association information based on the identifier of the relay terminal, wherein the association information indicates the remote terminal for which the relay terminal can provide a relay service; and determining, by the policy control function device, the authorization result based on the identifier of the remote terminal and the association information.

3 . The authorization method according to claim 2 , wherein the obtaining, by the policy control function device, the association information based on the identifier of the relay terminal comprises:
obtaining, by the policy control function device, the association information from a unified database based on the identifier of the relay terminal.

4 . The authorization method according to claim 1 , wherein the policy control function device is a first policy control function device, and determining, by the first policy control function device, the authorization result based on the identifier of the remote terminal and the identifier of the relay terminal comprises:
obtaining, by the first policy control function device, association information based on the identifier of the relay terminal, wherein the association information indicates at least one remote terminal for which the relay terminal can provide a relay service; sending, by the first policy control function device, the identifier of the relay terminal and the identifier of the remote terminal to a second policy control function device of the remote terminal; receiving, by the first policy control function device, indication information from the second policy control function device, wherein the indication information indicates whether the remote terminal can use the relay service of the relay terminal; and determining, by the first policy control function device, the authorization result based on the identifier of the remote terminal, the association information, and the indication information.

5 . The authorization method according to claim 4 , wherein the sending, by the first policy control function device, the identifier of the relay terminal and the identifier of the remote terminal to the second policy control function device comprises:
sending, by the first policy control function device, the identifier of the relay terminal and the identifier of the remote terminal to the second policy control function device based on an identifier of the second policy control function device, wherein the identifier of the second policy control function device is carried in the request message.

6 . The authorization method according to claim 4 , wherein the sending, by the first policy control function device, the identifier of the relay terminal and the identifier of the remote terminal to the second policy control function device comprises:
sending, by the first policy control function device, the identifier of the relay terminal and the identifier of the remote terminal to the second policy control function device based on an identifier of the second policy control function device, wherein the identifier of the second policy control function device is obtained by the first policy control function device from a unified database or a unified data management device based on the identifier of the remote terminal.

7 . An authorization method, comprising:
sending, by an access and mobility management function device of a relay terminal, a request message to a policy control function device of the relay terminal, wherein the request message comprises an identifier of the relay terminal and an identifier of a remote terminal; receiving, by the access and mobility management function device, an authorization result from the policy control function device, wherein the authorization result indicates whether the relay terminal and the remote terminal are authorized to establish a relay service relationship; and sending, by the access and mobility management function device, the authorization result to the relay terminal.

8 . The authorization method according to claim 7 , wherein before the sending, by the access and mobility management function device, the request message to the policy control function device, the method further comprises:
receiving, by the access and mobility management function device, the identifier of the relay terminal and the identifier of the remote terminal from the relay terminal.

9 . The authorization method according to claim 7 , wherein the policy control function device is a first policy control function device, the access and mobility management function device is a first access and mobility management function device, the request message further comprises an identifier of a second policy control function device of the remote terminal, and before the sending, by the first access and mobility management function device, the request message to the first policy control function device, the method further comprises:
obtaining, by the first access and mobility management function device, the identifier of the second policy control function device from a second access and mobility management function device of the remote terminal, a unified data management device, or a unified database based on the identifier of the remote terminal.

10 . A communication apparatus, comprising:
at least one processor; and a memory having instructions stored thereon that, when executed by the at least one processor, cause the communication apparatus to: receive a request message from an access and mobility management function device of a relay terminal, wherein the request message comprises an identifier of a remote terminal and an identifier of the relay terminal; determine an authorization result based on the identifier of the remote terminal and the identifier of the relay terminal, wherein the authorization result indicates whether the relay terminal and the remote terminal are authorized to establish a relay service relationship; and send the authorization result to the access and mobility management function device.

11 . The communication apparatus according to claim 10 , wherein the communication apparatus is caused to determine the authorization result based on the identifier of the remote terminal and the identifier of the relay terminal by:
obtaining association information based on the identifier of the relay terminal, wherein the association information indicates the remote terminal for which the relay terminal can provide a relay service; and determining the authorization result based on the identifier of the remote terminal and the association information.

12 . The

Assignees

• Huawei Tech Co Ltd

Inventors

• Xu Shengfeng
• Yang Yanmei
• Li Meng
• Ying Jiangwei

Classifications

• H04M15/66

  Policy and charging system · CPC title

• H04L12/1407

  Policy-and-charging control [PCC] architecture · CPC title

• H04W88/04

  adapted for relaying to or from another terminal or user · CPC title

• H04W76/11

  Allocation or use of connection identifiers · CPC title

• H04W76/14 Primary

  Direct-mode setup · CPC title