Location registration system, mobile terminal, control equipment, methods of location registration in the location registration system

• US 20030013444A1
• Filed: 06/21/2002
• Published: 01/16/2003
• Est. Priority Date: 07/10/2001
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Fujiwara, Masumi, Yabusaki, Masami, Sasada, Koji, Watanabe, Yugo
• Granted Patent: US 7,286,814 B2
• Time in Patent Office: Days
• US Class Current: 455/435.1
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 60/02 by periodical registration
• CPC Class Codes: H04W 64/006 with additional information processing, e.g. for direction or speed determination
• CPC Class Codes: H04W 8/205 Transfer to or from user equipment or user record carrier
• CPC Class Codes: H04W 8/24 Transfer of terminal data

Abstract

Mobile terminal status information is sent from a mobile terminal to the communication network after predetermined period advertised from outside, and settings related with a location area for the mobile terminal are made based on the mobile terminal status information at a node in the communication network. In this manner, for example, the optimal location area may be set up in a way to follow changes in the mobile terminal property information, and location control may be performed efficiently even when the mobile terminal does not detect a change of location area, such as when a terminal moving at a high speed slows down it moving speed.

Claims

1. A location registration system, comprising:

a mobile terminal for sending mobile terminal status information indicating mobile terminal statuses such as a moving speed and a frequency of call arrival to a communication network after predetermined period advertised from outside; and

nodes provided in said communication network for making settings related with a location area for said mobile terminal based on said mobile terminal status information.

2. The location registration system according to claim 1, wherein said mobile terminal comprises measuring means for measuring said mobile terminal status information.

3. The location registration system according to claim 2, wherein said predetermined period is advertised from one of the nodes in said communication network.

4. The location registration system according to claim 3, wherein the value of said predetermined period is determined based on said mobile terminal status information.

5. The location registration system according to claim 4, wherein said mobile terminal further comprises a timer for measuring time in accordance with said predetermined period.

6. The location registration system according to claim 5, wherein said nodes provide mobile terminal status numbers for identifying said mobile terminal statuses, manage for each mobile terminal status number a plurality of location areas and a timer value measured by said timer, and advertises said mobile terminal a mobile terminal status number corresponding to a location area determined at the time of location registration for said mobile terminal and said timer value by placing them in a location registration response signal.

7. The location registration system according to claim 5, wherein said nodes provide mobile terminal status numbers for identifying said mobile terminal statuses, manage for each mobile terminal status number a plurality of location areas and said timer value measured by said timer, and periodically advertise said mobile terminal said timer value for said each mobile terminal status number.

8. A mobile terminal in a location registration system for making settings related with a location area for a mobile terminal at one of the nodes in the communication network, comprising:

sending means for sending mobile terminal status information indicating mobile terminal statuses such as a moving speed and a frequency of call arrival to the communication network after predetermined period advertised from outside, wherein settings for a location area for said mobile terminal are made at one of the nodes in said communication network based on said mobile terminal status information.

9. The mobile terminal according to claim 8, further comprising:

measuring means for measuring said mobile terminal status information.

10. The mobile terminal according to claim 9, wherein said predetermined period is advertised from one of the nodes in said communication network.

11. The mobile terminal according to claim 10, wherein the value of said predetermined period is determined based on said mobile terminal status information.

12. The mobile terminal according to claim 11, further comprising:

a timer for measuring time in accordance with said predetermined period.

14. The control equipment according to claim 13, further comprising:

advertising means for advertising said mobile terminal a period for which said mobile terminal is to send said mobile terminal status information.

15. The control equipment according to claim 14, wherein said predetermined period is determined for each mobile terminal based on said mobile terminal status information.

16. The control equipment according to claim 15, wherein said setting means provides mobile terminal status numbers for identifying said mobile terminal statuses, manages for each mobile terminal status number a plurality of location areas and a timer value of the timer measured at said mobile terminal in accordance with said predetermined period, advertises said mobile terminal a mobile terminal status number corresponding to the location area determined at the time of location registration for said mobile terminal and said timer value by placing them in a location registration response signal.

17. The control equipment according to claim 15, wherein said setting means provides mobile terminal status numbers for identifying said mobile terminal statuses, manages for each mobile terminal status number a plurality of location areas and a timer value of the timer measured at said mobile terminal in accordance with said predetermined period, periodically advertises said mobile terminal said timer value for said each mobile terminal status number.

19. The location registration method according to claim 18, further comprising:

a measuring step of measuring said mobile terminal status information, wherein the mobile terminal status information measured in this measuring step is sent in said sending step.

20. The location registration method according to claim 19, further comprising:

advertising step of advertising said predetermined period from one of the nodes in said communication network.

21. The location registration method according to claim 20, wherein the value of said predetermined period is determined based on said mobile terminal status information.

13. A control equipment provided in a communication network for making settings related with a location area for mobile terminal, comprising:

setting means for making settings related with a location area for said mobile terminal based on mobile terminal status information periodically sent from said mobile terminal in a predetermined fashion indicating mobile terminal statuses such as a moving speed and frequency of call arrival.

18. A location registration method, comprising:

a sending step of sending from a mobile terminal to a communication network mobile terminal status information indicating mobile terminal statuses such as a moving speed and a frequency of call arrival after predetermined period advertised from outside; and

a setting step of making settings related with a location area for said mobile terminal based on said mobile terminal status information at nodes provided in said communication network.