Group communication system for mobile terminals

• US 20010027111A1
• Filed: 03/23/2001
• Published: 10/04/2001
• Est. Priority Date: 03/30/2000
• Status: Active Grant

• Current Assignee: DDI Corporation (TTM Technologies Incorporated)
• Original Assignee: DDI Corporation (TTM Technologies Incorporated)
• Inventors: Horiuchi, Hiroki, Oda, Toshikane, Motegi, Shinji, Enomoto, Masaru
• Granted Patent: US 6,898,423 B2
• Time in Patent Office: Days
• US Class Current: 455/519
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 8/18 Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data

Abstract

A group communication system includes a plurality of mobile terminals with member-attribute information, and a center component for collecting location information of the mobile terminals. The center component includes a group generation means for generating a group based on a group-area information and a group-attribute information which are specified, and a group member management means for always monitoring joining and leaving of the mobile terminals with the location information and the member-attribute information which correspond to the group-area information and the group-attribute information of the group, respectively.

Claims

1. A group communication system comprising:

a plurality of mobile terminals with member-attribute information; and

a center component for collecting location information of said mobile terminals,

said center component including a group generation means for generating a group based on a group-area information and a group-attribute information which are specified, and a group member management means for always monitoring joining and leaving of said mobile terminals with said location information and said member-attribute information which correspond to said group-area information and said group-attribute information of said group, respectively.

2. A system as claimed in

claim 1

, wherein said member-attribute information is service request information, and wherein said group-attribute information is a service provision information.

3. A system as claimed in

claim 1

, wherein said member-attribute information is a user-attribute information, and wherein said group-attribute information is a subject information for representing a subject of communication contents which characterizes said group.

4. A system as claimed in

claim 1

, wherein said group-area information and said group-attribute information of said group are specified by a mobile or fixed terminal, or previously specified by said center component.

5. A system as claimed in

claim 1

, wherein said system further comprises a center office, and wherein said center office has said center component.

6. A system as claimed in

claim 1

, wherein any one said mobile terminals has said center component.

7. A system as claimed in

claim 1

, wherein all said mobile terminals have said center components, and wherein information of said center components are communicated between said mobile terminals.

8. A system as claimed in

claim 1

, wherein said group-area information is a information representing one geographically continuous region, or a plurality of regions two or more geographically distributed discontinuous regions.

9. A system as claimed in

claim 1

, wherein said group generation means of said center component generates said group based on a group moving-state information in addition to said group-area information and said group-attribute information, and wherein said mobile terminal has a measured moving state information in addition to said member-attribute information.

10. A system as claimed in

claim 9

, wherein said group moving-state information and said moving state information are information representing a destination, a moving speed and/or a classification of said mobile terminal.

11. A system as claimed in

claim 10

, wherein if said mobile terminal is mounted on a vehicle, said group moving-state information and said moving state information are information also representing a type of said vehicle, a state of said vehicle and/or a road classification.

12. A system as claimed in

claim 1

, wherein said group member management means of said center component sends a joining request information of said group to a mobile terminal which satisfies requirements of said group, and wherein said mobile terminal answered to said joining request information is joined said group as a member.

13. A system as claimed in

claim 1

, wherein said center component sends a software component required for service of said group to said mobile terminal when said mobile terminal joins said group.

14. A system as claimed in

claim 1

, wherein when one mobile terminal joins or leaves from said group, said center component notifies that to other mobile terminal of said group.

15. A system as claimed in

claim 1

, wherein when one mobile terminal joins or leaves from said group, said center component notifies that to all said mobile terminals of said group.

16. A system as claimed in

claim 1

, wherein said center component further comprises a group search means enabling said mobile terminal to search said group.