Communication system, operation control method, and location management server

• US 20070293241A1
• Filed: 06/05/2007
• Published: 12/20/2007
• Est. Priority Date: 06/14/2006
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Tamura, Toshiyuki
• Application Number:
  US11/806,955
• Publication Number:
  US 20070293241A1
• Time in Patent Office: Days
• US Class Current: 455/456.1
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 8/06 Registration at serving network Location Register, VLR or user mobility server
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

A communication system according to an exemplary aspect of the present invention is a communication system including a location management server for managing the location of a mobile station, a base station for deciding an exchange which accommodates the mobile station via the base station in response to a location registration request from the mobile station and making the location registration request to the exchange decided, and an exchange for making the location registration request to the location management server in response to the location registration request from the base station, wherein the location management server designates an exchange for accommodating the mobile station in response to the location registration request.

Claims

1. A communication system, comprising:

a location management server for managing the location of a mobile station, a base station for deciding an exchange which accommodates the mobile station via the base station in response to a location registration request from the mobile station and making the location registration request to the exchange decided, and an exchange for making the location registration request to the location management server in response to the location registration request from the base station, wherein

the location management server designates an exchange for accommodating the mobile station in response to the location registration request.

2. The communication system according to claim 1, comprising an exchange database which shows a base station associated with each exchange, wherein

the location management server decides based on the exchange database that an exchange associated with a base station which has made the location registration request is to be the exchange for accommodating the mobile station.

3. The communication system according to claim 1, wherein the location management server decides an exchange for accommodating the mobile station based on a service to which the mobile station subscribes.

4. The communication system according to claim 1, wherein the location management server decides an exchange for accommodating the mobile station based on status of mobile station accommodation by each exchange.

5. The communication system according to claim 1, wherein when the location management server decides that the exchange which has made the location registration request is to be the exchange for accommodating the mobile station, the location management server makes location registration for the mobile station.

6. The communication system according to claim 1, wherein when the location management server decides that an exchange different from the exchange which has made the location registration request is to be the exchange for accommodating the mobile station, the location management server instructs the base station which has made the location registration request to make a location registration request again via the different exchange.

7. The communication system according to claim 5, wherein the location management server decides in response to an external instruction an exchange for accommodating the mobile station for which location registration has been already made and instructs the base station which has made the location registration request to make a location registration request again via the exchange decided.

8. An operation control method for a communication system which comprises a location management server for managing the location of a mobile station, a base station for deciding an exchange which accommodates the mobile station via the base station in response to a location registration request from the mobile station and making the location registration request to the exchange decided, and an exchange for making the location registration request to the location management server in response to the location registration request from the base station,

the method comprising:

designating an exchange for accommodating the mobile station in response to the location registration request at the location management server.

9. The operation control method according to claim 8, wherein the location management server decides that an exchange associated with a base station which has made the location registration request is to be the exchange for accommodating the mobile station based on an exchange database which shows a base station associated with each exchange.

10. The operation control method according to claim 8, wherein the location management server decides an exchange for accommodating the mobile station based on a service to which the mobile station subscribes.

11. The operation control method according to claim 8, wherein the location management server decides an exchange for accommodating the mobile station based on status of mobile station accommodation by each exchange.

12. The operation control method according to claim 8, wherein when the location management server decides that the exchange which has made the location registration request is to be the exchange for accommodating the mobile station, the location management server makes location registration for the mobile station.

13. The operation control method according to claim 8, wherein when the location management server decides that an exchange different from the exchange which has made the location registration request is to be the exchange for accommodating the mobile station, the location management server instructs the base station which has made the location registration request to make a location registration request again via the different exchange.

14. The operation control method according to claim 12, comprising, at the location management server, deciding in response to an external instruction an exchange for accommodating the mobile station for which location registration has been already made and instructing the base station which has made the location registration request to make a location registration request again via the exchange decided.

15. A location management server for a communication system which comprises a location management server for managing the location of a mobile station, a base station for deciding an exchange which accommodates the mobile station via the base station in response to a location registration request from the mobile station and making the location registration request to the exchange decided, and an exchange for making the location registration request to the location management server in response to the location registration request from the base station, wherein

the location management server designates an exchange for accommodating the mobile station in response to the location registration request.

16. The location management server according to claim 15, comprising an exchange database which shows a base station associated with each exchange, wherein

the location management server decides based on the exchange database that an exchange associated with a base station which has made the location registration request is to be the exchange for accommodating the mobile station.

17. The location management server according to claim 15, wherein the location management server decides an exchange for accommodating the mobile station based on a service to which the mobile station subscribes.

18. The location management server according to claim 15, wherein the location management server decides an exchange for accommodating the mobile station based on status of mobile station accommodation by each exchange.

19. The location management server according to claim 15, wherein when the location management server decides that the exchange which has made the location registration request is to be the exchange for accommodating the mobile station, the location management server makes location registration for the mobile station.

20. The location management server according to claim 15, wherein when the location management server decides that an exchange different from the exchange which has made the location registration request is to be the exchange for accommodating the mobile station, the location management server instructs the base station which has made the location registration request to make a location registration request again via the different exchange.

21. The location management server according to claim 19, wherein the location management server decides in response to an external instruction an exchange for accommodating the mobile station for which location registration has been already made and instructs the base station which has made the location registration request to make a location registration request again via the exchange decided.

22. A storage medium storing a program for causing a computer to execute an operation control method for a location management server of a communication system which comprises a location management server for managing the location of a mobile station, a base station for deciding an exchange which accommodates the mobile station via the base station in response to a location registration request from the mobile station and making the location registration request to the exchange decided, and an exchange for making the location registration request to the location management server in response to the location registration request from the base station,

wherein the program comprising a process of designating an exchange for accommodating the mobile station in response to the location registration request.