Mobile Communication System, Telephone Calling Method and Program Software for The Same

• US 20090017842A1
• Filed: 01/11/2007
• Published: 01/15/2009
• Est. Priority Date: 01/12/2006
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Fukasaku, Masaki
• Application Number:
  US12/087,607
• Publication Number:
  US 20090017842A1
• Time in Patent Office: Days
• US Class Current: 455/457
• CPC Class Codes: H04M 2242/30 Determination of the location of a subscriber
• CPC Class Codes: H04M 3/42042 Notifying the called party of information on the calling party details within substation equipment H04M1/57, signalling details H04Q3/72
• CPC Class Codes: H04M 3/42348 Location-based services which utilize the location information of a target
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
• CPC Class Codes: H04W 84/08 Trunked mobile radio systems

Abstract

A source portable terminal (41) notifies reception-side portable terminals (51, 61, 71) of location information data of the source portable terminal (41) via a server (21, 22), at the timing of starting PoC telephone call. The users of the reception-side portable terminals (51, 61, 71) are enabled to identify the destination user and to locate the user by displaying the received destination location information on a display, which reduces the burden on the source user. After that, each of the PoC calling parties (speakers) transmits location information data of its own to a portable terminal of another party, at the time starting telephone call.

Claims

1. A telephone calling method for use in a mobile communication system comprising one source portable terminal (41), a plurality of destination portable terminals (51, 61, 71), and a server (21, 22) for controlling one-to-several telephone call performed between said source portable terminal and said plurality of destination portable terminals, the method being characterized by comprising:

a step (2) in which said source portable terminal (41) intermittently acquires location information data of its own from a location information notification service system (10);

a step (5) in which said source portable terminal (41) transmits the acquired location information data of its own to said server (21, 22) at the timing of starting the transmission;

a step (6) in which said destination portable terminals (51, 61, 71) receive the location information data from said server (21, 22) having received the location information data at the timing of a session being established; and

a step (8) in which said destination portable terminals (51, 61, 71) display the location information of said source portable terminal (41) on their screens based on the location information data.

2. A communication method for use in a mobile communication system comprising one source portable terminal (41), a plurality of destination portable terminals (51, 61, 71), and a server (21, 22) for controlling one-to-several telephone call performed between said source portable terminal and said plurality of destination portable terminals, the method being characterized by comprising in said server (21, 22):

a step (S3, S5) of receiving from said source portable terminal (41) information identifying a destination or a destination group, at the timing of starting the transmission;

a step (S7) of identifying a telephone numbers of said destination portable terminals (51, 61, 71) based on the information identifying the destination or the destination group;

a step (S10) of receiving from said source portable terminal (41) location information data of said source portable terminal at the timing of starting the transmission;

a step (S13) of transmitting a session establishment request to the portable terminal (51, 61, 71) with the identified destination telephone number;

a step (S14) of receiving from the destination portable terminals (51, 61, 71) a signal in response to the session establishment request; and

a step (S16) of transmitting the location information data received from said source portable terminal (41) to said destination portable terminals (51, 61, 71).

3. A mobile communication system comprising one source portable terminal (41), a plurality of destination portable terminals (51, 61, 71), and a server (21, 22) for controlling one-to-several telephone call performed between said source portable terminal and said plurality of destination portable terminals, characterized in that said source portable terminal (41) comprises:

location information acquisition means (2) for intermittently acquiring location information data of the source portable terminal from a location information notification service system (10); and

transmission means (5) for transmitting to said server (21, 22) the location information data of the source portable terminal acquired by said location information acquisition means (2), at the timing of starting the transmission, and

each of said plurality of destination portable terminals (51, 61, 71) comprises;

reception means (6) for receiving the location information data from said server (21, 22) having received the location information data from said source portable terminal (41), at the timing of a session being established; and

image display means (8) for displaying on a screen thereof the location information of said source portable terminal (41) based on the location information data.

4. The mobile communication system according to claim 3, wherein the one-to-several telephone call is PoC (Push-to-Talk over Cellular) telephone call, and said transmission means (5) of said source portable terminal (41) transmits location information data of the source portable terminal (41) to said plurality of destination portable terminals (51, 61, 71) via said server (21, 22) when starting the PoC communication.

5. The mobile communication system according to claim 4, wherein said source portable terminal (41) further comprises determination means (3, 4) which enables or disables transmission of the location information data by said transmission means (5) at the timing of starting the PoC communication.

6. A mobile communication system comprising one source portable terminal (41), a plurality of destination portable terminals (51, 61, 71), and a server (21, 22) for controlling one-to-several telephone call performed between said source portable terminal and said plurality of destination portable terminals, characterized in that said server (21, 22) comprises:

reception means (211) for receiving from said source portable terminal (41) location information data of the source portable terminal and information identifying a destination or a destination group, at the timing of starting the transmission;

group management means (221) for identifying telephone numbers of the destination portable terminals based on the information identifying the destination or the destination group;

transmission means (213) which transmits a session establishment request to the portable terminals (51, 61, 71) with the identified destination telephone numbers and, when said reception means (211) receives a signal in response to the session establishment request from the destination portable terminals (51, 61, 71), transmits the location information data received from said source portable terminal (41) to said destination portable terminals (51, 61, 71); and

a telephone call control unit (212) for controlling telephone call between said source portable terminal and said plurality of destination portable terminals.

7. The mobile communication system according to claim 6, wherein the one-to-several telephone call is PoC (Push-to-Talk over Cellular) telephone call, and said server comprises a PoC server (21) and a GLMS (Group and List Management Server) server (22).

8. Program software for a computer for operating portable terminals (41, 51, 61, 71) in a mobile communication system comprising one source portable terminal (41), a plurality of destination portable terminals (51, 61, 71), and a server (21, 22) for controlling one-to-several telephone call performed between said source portable terminal and said plurality of destination portable terminals, the program software being characterized by causing the computer to execute the steps of:

acquiring intermittently from a location information service system (10) location information data of the source portable terminal;

transmitting the acquired location information data of the source portable terminal to said server (21, 22), at the timing of starting the transmission;

receiving the location information data from said server (21, 22) having received the location information data, at the timing of a session being established; and

displaying on a screen the location information of said source portable terminal (41) based on the location information data.

9. Program software for a computer for operating a server (21, 22) in a mobile communication system comprising one source portable terminal (41), a plurality of destination portable terminals (51, 61, 71), and a server (21, 22) for controlling one-to-several telephone call performed between said source portable terminal and said plurality of destination portable terminals, the program software being characterized by causing the computer to execute:

a step (S3, S5) of receiving from said source portable terminal (41) information identifying a destination or a destination group, at the timing of starting the transmission;

a step (S7) of identifying telephone numbers of the destination portable terminals (51, 61, 71) based on the information identifying the destination or the destination group;

a step (S10) of receiving from said source portable terminal (41) location information data of the source portable terminal, at the timing of starting the transmission;

a step (S13) of transmitting a session establishment request to the portable terminals (51, 61, 71) with the identified destination telephone numbers;

a step (S14) of receiving a signal in response to the session establishment request from said destination portable terminal (51, 61, 71); and

a step (S16) of transmitting the location information data received from said source portable terminal (41) to said destination portable terminals (51, 61, 71).

10. A portable terminal for use in a mobile communication system comprising a server (21, 22) controlling one-to-several telephone call performed among three or more portable terminals (41, 51, 61, 71), said portable terminal being characterized by comprising:

location information acquisition means (2) for intermittently acquiring location information data of the portable terminal from a location information notification service system (10);

transmission means (5) for transmitting to said server (21, 22) the location information data of the portable terminal acquired by said location information acquisition means (2), at the timing of starting the transmission;

reception means (6) for receiving the location information data from said server (21, 22) having received the location information data from the source portable terminal (41), at the timing of a session being established; and

image display means (8) for displaying on a screen the location information of said source portable terminal (41) based on the location information data.

11. The portable terminal according to claim 10, wherein the one-to-several telephone call is PoC (Push-to-Talk over Cellular) telephone call, and said transmission means (5) transmits location information data of the source portable terminal to said server (21, 22) when starting the PoC communication.

12. The portable terminal according to claim 11, further comprising determination means (3, 4) which enables or disables transmission of the location information data by said transmission means (5) at the timing of starting the PoC communication.

13. A server (21, 22) for controlling one-to-several telephone call performed between one source portable terminal (41) and a plurality of destination portable terminals (51, 61, 71), comprising:

reception means (211) for receiving from said source portable terminal (41) location information data of the source portable terminal device and information identifying a destination or a destination group, at the timing of starting the transmission;

group management means (221) for identifying telephone numbers of the destination portable terminals based on the information identifying the destination or the destination group;

transmission means (213) which transmits a session establishment request to said portable terminals (51, 61, 71) with the identified destination telephone numbers and, when the reception means (211) receives a signal in response to the session establishment request from said destination portable terminals (51, 61, 71), transmits the location information data received from said source portable terminal (41) to said destination portable terminals (51, 61, 71); and

a telephone call control unit (212) for controlling telephone call between said source portable terminal and said plurality of destination portable terminals.

14. The server according to claim 13, wherein the one-to-several telephone call is PoC (Push-to-Talk over Cellular) telephone call and said server comprises a PoC server (21) and a GLMS (Group and List Management Server) server (22).