Mobile communication system, and location registration method of mobile station, resource control method and recording medium in mobile communication system

• US 20020082009A1
• Filed: 11/06/2001
• Published: 06/27/2002
• Est. Priority Date: 11/10/2000
• Status: Active Grant

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Okajima, Ichiro, Ikeda, Takehiro, Umeda, Narumi
• Granted Patent: US 6,885,865 B2
• Time in Patent Office: Days
• US Class Current: 455/433
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

The mobile station visiting a location registration area at the present time plans to move to another location registration area at a future time. The mobile station sends the moving schedule information to the location management agent in a prescribed format to notify it of the scheduled destination. Receiving the moving schedule information, the location management agent learns the location registration area corresponding to the scheduled destination among the plurality of location registration areas. The location management agent sets a moving schedule flag in the location registration database in accordance with the moving schedule information with that format, which is received from the mobile station, and makes an additional registration of the moving time and the destination location registration area. Then, at the future time, it updates the location registration database, thereby making a new location registration.

Claims

1. A mobile communication system including a location management agent for conducting a new location registration and a registration update of a mobile station in a prescribed service area, said mobile communication system comprising:

schedule notifying means for sending moving schedule information at a particular time from said mobile station to said location management agent in advance; and

a location registration database provided in said location management agent for registering the moving schedule information about the mobile station at the particular time such that the moving schedule information has correspondence with a scheduled destination location registration area, wherein

said location management agent, referring to said location registration database, updates the location registration area of the mobile station in the prescribed service area at the particular time.

2. The mobile communication system as claimed in claim 1, wherein

said schedule notifying means includes schedule managing means installed in said mobile station, and said schedule managing means notifies said location management agent of the moving schedule information automatically.

3. The mobile communication system as claimed in claim 1, wherein

each location registration area in said prescribed service area comprises a resource management agent for managing a number of its radio channels, and wherein

said resource management agent adaptively controls the number of the radio channels to be assigned to the location registration area in response to a command sent from said location management agent, in accordance with the moving schedule information registered in said location registration database.

4. The mobile communication system as claimed in claim 2, wherein

each location registration area in said prescribed service area comprises a resource management agent for managing a number of its radio channels, and wherein

said resource management agent adaptively controls the number of the radio channels to be assigned to the location registration area in response to a command sent from said location management agent, in accordance with the moving schedule information registered in said location registration database.

5. A location registration method of a mobile station in a mobile communication system including a location management agent for conducting a new location registration and a registration update of the mobile station in a prescribed service area, said location registration method of a mobile station in a mobile communication system comprising:

a first step of sending moving schedule information at a particular time from said mobile station to said location management agent in advance;

a second step of registering, in a location registration database provided in said location management agent, the moving schedule information about the mobile station in correspondence with the particular time and a scheduled destination location registration area at the particular time; and

a third step of updating the location registration area of the mobile station in the prescribed service area at the particular time by said location management agent with referring to said location registration database.

6. The location registration method of a mobile station in a mobile communication system as claimed in claim 5, wherein

the first step notifies said location management agent of the moving schedule information automatically by schedule managing means installed in said mobile station.

7. A resource control method in a mobile communication system conducting a new location registration and a registration update of a mobile station in a prescribed service area, said resource control method in a mobile communication system comprising:

a first step of registering moving schedule information about the mobile station in a location registration database of a location management agent such that the moving schedule information has correspondence with moving schedule time, and an original position and a scheduled destination location registration area of the mobile station at the time; and

a second step of adaptively controlling the number of the radio channels to be assigned to the location registration area by a resource management agent installed in each location registration area in the prescribed service area in response to a command sent from said location management agent, in accordance with the moving schedule information registered in said location registration database.

8. A recording medium recording a computer readable program of a location registration method of a mobile station in a mobile communication system including a location management agent for conducting a new location registration and a registration update of the mobile station in a prescribed service area,

said program causes a computer to execute:

a first step of sending moving schedule information at a particular time from said mobile station to said location management agent in advance;

a second step of registering, in a location registration database provided in said location management agent, the moving schedule information about the mobile station in correspondence with the particular time and a scheduled destination location registration area at the particular time; and

a third step of updating the location registration area of the mobile station in the prescribed service area at the particular time by said location management agent with referring to said location registration database.

9. The recording medium as claimed in claim 8, wherein

the first step of said program notifies said location management agent of the moving schedule information automatically by schedule managing means installed in said mobile station.

10. A recording medium recording a computer readable program of a resource control method in a mobile communication system conducting a new location registration and a registration update of a mobile station in a prescribed service area,

said program causes a computer to execute:

a first step of registering moving schedule information about the mobile station in a location registration database of a location management agent such that the moving schedule information has correspondence with moving schedule time, and an original position and a scheduled destination location registration area of the mobile station at the time; and

a second step of adaptively controlling the number of the radio channels to be assigned to the location registration area by a resource management agent installed in each location registration area in the prescribed service area in response to a command sent from said location management agent, in accordance with the moving schedule information registered in said location registration database.