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

• US 6,885,865 B2
• Filed: 11/06/2001
• Issued: 04/26/2005
• Est. Priority Date: 11/10/2000
• Status: Expired due to Fees

• 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
• Primary Examiner(s): Trinh, Sonny
• Assistant Examiner(s): PHAN, HUY Q
• Application Number:
  US09/993,585
• Publication Number:
  US 20020082009A1
• Time in Patent Office: 1,267 Days
• Field of Search: 455/433, 455/435.1, 455/434, 455/450, 455/456.1
• 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, the system comprising:

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

a location registration database provided in said location management agent for registering said moving schedule information about said mobile station in said prescribed service area which information includes said particular time and a scheduled destination location registration area at said particular time, wherein said location management agent is arranged to update a location registration area of said mobile station in said prescribed service area at said particular time with reference to said location registration database, wherein

said location registration database is arranged to register said moving schedule information about said mobile station, and

each location registration area in said prescribed service area includes a resource management agent for managing a number of its radio channels, and said resource management is arranged to adaptively control the number of radio channels to be assigned to said location registration area in said prescribed service area in response to a command sent from said location management agent in accordance with said moving schedule information registered in said location registration database.

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

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

a third step of updating a location registration area of said mobile station in said prescribed service area at said particular time by said location management agent with reference to said location registration database, wherein

said location registration database is arranged to register said moving schedule information about said mobile station, and

each location registration area in said prescribed service area includes a resource management agent for managing a number of its radio channels, and said resource management is arranged to adaptively control the number of radio channels to be assigned to said location registration area in said prescribed service area in response to a command sent from said location management agent in accordance with said moving schedule information registered in said location registration database.

4. The location registration method of a mobile station in a mobile communication system as claimed in claim 3, wherein

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

5. 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 a moving schedule information of said mobile station at a particular time in advance from said mobile station to said location management agent;

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

a third step of updating a location registration area of said mobile station in said prescribed service area at said particular time by said location management agent with reference to said location registration database, wherein

said location registration database is arranged to register said moving schedule information about said mobile station, and

each location registration area in said prescribed service area includes a resource management agent for managing a number of its radio channels, and said resource management is arranged to adaptively control the number of radio channels to be assigned to said location registration area in said prescribed service area in response to a command sent from said location management agent in accordance with said moving schedule information registered in said location registration database.

6. The recording medium as claimed in claim 5, 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.