Handling talk burst denials in group communication system supporting PTT service

• US 20060142036A1
• Filed: 07/27/2005
• Published: 06/29/2006
• Est. Priority Date: 07/28/2004
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lim, Guk-Chan
• Granted Patent: US 7,747,268 B2
• Time in Patent Office: Days
• US Class Current: 455/518
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 72/56 based on priority criteria
• 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 method for processing a talk burst of a PTT server when a PTT terminal requests permission to send a talk burst, but the talk burst has already been allocated to another PTT terminal. The PTT server sends to every PTT terminal having a session established therefor, a talk burst deny message including an ID of the PTT terminal having sent the talk burst request message. Then, each PTT terminal having received the talk burst deny message compares its own ID with the ID included in the talk burst deny message and outputs the comparison result, such that the request for permission to send the talk burst can be processed and every user can check the status information of all PTT terminals having a session established thereof.

Claims

1. A method of processing a talk burst, comprising:

receiving, by a PTT terminal, a talk burst deny message from a PTT server;

comparing, by the PTT terminal, an ID included in the talk burst deny message with its own ID; and

displaying, by the PTT terminal, a talk burst status on a screen according to a result of the comparing.

2. The method of claim 1, wherein the talk burst deny message comprises:

a destination field that is set as broadcast mode;

a talk burst deny field; and

an ID field of the PTT terminal that requested a talk burst.

3. The method of claim 1, wherein the step of displaying the result of comparing comprises:

outputting a message indicating talk burst request failure, if the ID of the PTT terminal and the ID of the talk burst denial message are the same; and

outputting a message indicating that the talk burst request of the PTT terminal corresponding to the ID has been denied, if the ID of the PTT terminal and the ID of the talk burst denial message are different.

4. The method of claim 3, wherein the message is indicated by at least one of a text, image, and animation.

5. A method of processing a talk burst of a PTT service, comprising:

if a talk burst denial message is received by a PTT terminal that did not send a talk burst request message, the PTT terminal checks those PTT terminals that failed to obtain a talk burst, by referring to the ID included in the talk burst denial message; and

displaying information related to the PTT terminals that failed to obtain a talk burst.

6. The method of claim 5, wherein the information related to the PTT terminals that failed to obtain a talk burst is displayed by at least one of a text, image, and animation.

7. A server of a group communication system, comprising:

a transceiver to send and receive communication signals;

a processor cooperating with the transceiver; and

a storage medium containing instructions executable by the processor to perform the steps of,

receiving a floor request from a particular user terminal,

granting or denying the floor request of the particular user terminal, and

informing each user terminal about a floor request status of all user terminals having a session established thereof.

8. The server of claim 7, wherein the granting or denying the floor request is performed based upon conditions of the group communication system.

9. The server of claim 8, wherein the conditions include a situation where the floor request has already been granted to another user terminal other than the particular user terminal that sent the floor request.

10. The server of claim 7, wherein the informing step comprises, sending a floor deny message that identifies the particular user terminal, if the floor request is denied for that particular user terminal.

11. The server of claim 10, wherein the floor deny message has a first field indicating a broadcast mode transmission, a second field indicating a floor request denial, and a third field indicating an identification of the particular user terminal that sent the floor request which was denied.

12. The server of claim 7, wherein the group communication system supports a push-to-talk function.

13. A user terminal of a group communication system, comprising:

a transceiver to send and receive communication signals;

a processor cooperating with the transceiver; and

a storage medium containing instructions executable by the processor to perform the steps of,

sending a floor request to a server,

receiving a floor grant or a floor deny from the server; and

indicating a floor request status of all user terminals having a session established thereof.

14. The user terminal of claim 13, wherein the receiving step comprises, receiving a floor deny message that includes an identity of a particular user terminal which received a floor deny.

15. The user terminal of claim 13, wherein the indicating is provided to a user through audible, visual or tactile indication or any combination thereof.

16. The user terminal of claim 15, wherein the indicating is displayed via graphics image processing.

17. The user terminal of claim 13, wherein the group communication system supports a push-to-talk function.