Method and apparatus for implementing service area restriction

Patent metadata

Field	Value
Publication number	US-2026089618-A1
Application number	US-202219113404-A
Country	US
Kind code	A1
Filing date	Sep 28, 2022
Priority date	Sep 28, 2022
Publication date	Mar 26, 2026
Grant date	—

Abstract

A method for implementing service area restriction, performed by a terminal, includes: in response to receiving service area restriction information sent by a network device, performing a service area restriction rule, in which the service area restriction information includes tracking area identities (TAIs) of a registered public land mobile network (RPLMN) and TAIs of at least one equivalent registered public land mobile network (eRPLMN).

First claim

1 . A method for implementing service area restriction, performed by a terminal, comprising:
performing a service area restriction rule in response to receiving service area restriction information sent by a network device; wherein the service area restriction information comprises tracking area identities (TAIs) of a registered public land mobile network (RPLMN) and TAIs of at least one equivalent registered public land mobile network (eRPLMN).

2 . The method according to claim 1 , wherein the service area restriction information comprises a non-allowed area, and performing the service area restriction rule comprises:
in response to the TAIs of the RPLMN being all included in the non-allowed area, determining that the terminal is in the non-allowed area; and determining that the terminal accesses any of the at least one eRPLMN using a non-allowed area restriction; or wherein the service area restriction information comprises an allowed area, and performing the service area restriction rule comprises: in response to none of the TAIs of the RPLMN being included in the allowed area, determining that the terminal is in a non-allowed area; and determining that the terminal accesses any of the at least one eRPLMN using a non-allowed area restriction.

3 . (canceled)

4 . The method according to claim 2 , wherein determining that the terminal accesses any of the at least one eRPLMN using the non-allowed area restriction comprises:
in a case that the terminal is in the non-allowed area when the terminal uses the RPLMN, determining that the terminal is still in the non-allowed area when the terminal uses any of the at least one eRPLMN.

5 . The method according to claim 1 , wherein the service area restriction information comprises a non-allowed area, and performing the service area restriction rule comprises:
in response to at least one of the TAIs of the RPLMN not being included in the non-allowed area, determining that the terminal is in an allowed area; and determining whether the terminal is in the allowed area according to a predefined rule in response to using any of the at least one eRPLMN; or wherein the service area restriction information comprises an allowed area, and performing the service area restriction rule comprises: in response to at least one of the TAIs of the RPLMN being included in the allowed area, determining that the terminal is in the allowed area; and determining whether the terminal is in the allowed area according to a predefined rule in response to using any of the at least one eRPLMN.

6 . (canceled)

7 . The method according to claim 5 , wherein the predefined rule comprises:
in a case that the terminal uses any of the at least one eRPLMN, in response to the TAIs of the eRPLMN being all included in the non-allowed area, or in response to none of the TAIs of the eRPLMN being included in the allowed area, determining that the terminal is in the non-allowed area when the terminal uses the eRPLMN; in response to at least one of the TAIs of the eRPLMN being not included in the non-allowed area, or in response to at least one of the TAIs of the eRPLMN being included in the allowed area, determining that the terminal is in the allowed area when the terminal uses the eRPLMN.

8 . The method according to claim 5 , wherein the predefined rule comprises:
in response to using any of the at least one eRPLMN, in a case that the terminal is in the allowed area when the terminal uses the RPLMN, determining that the terminal is still in the allowed area when the terminal uses any of the at least one eRPLMN.

9 . A method for implementing service area restriction, performed by a network device, comprising:
sending service area restriction information to a terminal; and performing a service area restriction rule on the terminal according to the service area restriction information, in response to receiving a signaling sent by the terminal, wherein the service area restriction information comprises tracking area identities (TAIs) of a registered public land mobile network (RPLMN) and TAIs of at least one equivalent registered public land mobile network (eRPLMN).

10 . The method according to claim 9 , wherein the service area restriction information comprises a non-allowed area, and performing the service area restriction rule on the terminal comprises:
in response to the TAIs of the RPLMN being all included in the non-allowed area, determining that the terminal is in the non-allowed area; and determining that the terminal accesses any of the at least one eRPLMN using a non-allowed area restriction; or wherein the service area restriction information comprises an allowed area, and performing the service area restriction rule on the terminal comprises: in response to none of the TAIs of the RPLMN being included in the allowed area, determining that the terminal is in a non-allowed area; and determining that the terminal accesses any of the at least one eRPLMN using a non-allowed area restriction.

11 . (canceled)

12 . The method according to claim 10 , wherein determining that the terminal accesses any of the at least one eRPLMN using the non-allowed area restriction comprises:
in a case that the terminal is in the non-allowed area when the terminal uses the RPLMN, determining that the terminal is still in the non-allowed area when the terminal uses any of the at least one eRPLMN.

13 . The method according to claim 9 , wherein the service area restriction information comprises a non-allowed area, and performing the service area restriction rule on the terminal comprises:
in response to at least one of the TAIs of the RPLMN not being included in the non-allowed area, determining that the terminal is in an allowed area; and determining whether the terminal is in the allowed area according to a predefined rule in response to using any of the at least one eRPLMN; or wherein the service area restriction information comprises an allowed area, and performing the service area restriction rule on the terminal comprises: in response to at least one of the TAIs of the RPLMN being included in the allowed area, determining that the terminal is in the allowed area; and determining whether the terminal is in the allowed area according to a predefined rule in response to using any of the at least one eRPLMN.

14 . (canceled)

15 . The method according to claim 13 , wherein the predefined rule comprises:
in a case that the terminal uses any of the at least one eRPLMN, in response to the TAIs of the eRPLMN being all included in the non-allowed area, or in response to none of the TAIs of the eRPLMN being included in the allowed area, determining that the terminal is in the non-allowed area when the terminal uses the eRPLMN; in response to at least one of the TAIs of the eRPLMN being not included in the non-allowed area, or in response to at least one of the TAIs of the eRPLMN being included in the allowed area, determining that the terminal is in the allowed area when the terminal uses the eRPLMN.

16 . The method according to claim 13 , wherein the predefined rule comprises:
in response to using any of the at least one eRPLMN, in a case that the terminal is in the allowed area when the terminal uses the RPLMN, determining that the terminal is still in the allowed area when the terminal uses any of the at least one eRPLMN.

17 . The method according to claim 9 , wherein performing the service area restriction rule on the terminal comprises:
obtaining current location information of the terminal; and determining whether the current locat

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Mao Yuxin
• Shen Yang

Classifications

• H04W48/18 Primary

  Selecting a network or a communication service · CPC title

• H04W48/16

  Discovering, processing access restriction or access information · CPC title

• H04L5/0048 Primary

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title