Method and system for initiating PoC session including different answer modes according to media types

• US 20070298768A1
• Filed: 06/11/2007
• Published: 12/27/2007
• Est. Priority Date: 06/09/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Ji-Hye, Kim, Wuk, Park, Sung-Jin, Sung, Sang-Kyung
• Granted Patent: US 8,331,876 B2
• Time in Patent Office: Days
• US Class Current: 455/412.1
• CPC Class Codes: H04W 28/14 using intermediate storage
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems

Abstract

Disclosed is a method and system for initiating a Push-To-Talk over Cellular (PoC) session between PoC clients supporting various types of media. A PoC client performing Open Mobile Alliance-type multimedia communication service supports a plurality of media types and makes it possible to independently and more conveniently initiate a session irrespective of answer modes set according to media types when the answer modes according to the media types are not equal to each other.

Claims

1. A PoC (Push-To-Talk over Cellular) session initiation system including a receiving party PoC server and a receiving party PoC client which set an answer mode for at least one media type as an auto-answer mode between the receiving party PoC server and the receiving party PoC client, the PoC system having mutually different answer modes depending on media types, the PoC session initiation system comprising:

the receiving party PoC server for checking the answer modes according to the media types when a session participation request message for at least one media type is received from a transmitting party PoC server, transmitting an auto-answer message for media set as an auto-answer mode to the transmitting party PoC server, and transferring the session participation request message to the receiving party PoC client;

the receiving party PoC client for transmitting a response message including information about whether the receiving party PoC client participates in a session, which is input by a user, when the session participation request message is received; and

the transmitting party PoC server for storing information on the answer modes according to the media types when the auto-answer message is received, establishing a PoC session and granting a floor to the transmitting party PoC client, buffering media transmitted from the transmitting party PoC client, and transferring the buffered media to the receiving party PoC client when the response message is received from the receiving party PoC client.

2. The system as claimed in claim 1, wherein the receiving party PoC client transmits the response message including information about whether the media type is permitted to be received, when the user makes an input indicating whether the at least one media type included in the session participation request message is permitted to be received.

3. The system as claimed in claim 1, wherein the transmitting party PoC server grants the transmitting party PoC client the floor for the media set as the auto-answer mode after a PoC session is established according to reception of the auto-answer message.

4. The system as claimed in claim 3, wherein the transmitting party PoC server transfers the buffered media to the receiving party PoC client upon receiving the response message transferred from the receiving party PoC client, and grants the transmitting party PoC client the floor for the media permitted to be received, which is included in the response message.

5. The system as claimed in claim 4, wherein if the response message transferred from the receiving party PoC client includes whether or not to permit receiving media types other than the media set as the auto-answer mode, the transmitting party PoC server transfers a message, which informs that the permitted media types can be transmitted, to the transmitting party PoC client.

6. The system as claimed in claim 1, wherein the transmitting party PoC server grants the transmitting party PoC client the floor for all media requested by the transmitting party PoC client after a PoC session is established according to reception of the auto-answer message.

7. The system as claimed in claim 2, wherein the transmitting party PoC server grants the transmitting party PoC client the floor for all media requested by the transmitting party PoC client after a PoC session is established according to reception of the auto-answer message.

8. The system as claimed in claim 6, wherein the transmitting party PoC server buffers media transmitted from the transmitting party PoC client according to media types, and transfers media permitted to be received, which are included in the response message, among the media buffered according to types to the receiving party PoC client when the response message is received.

9. The system as claimed in claim 7, wherein the transmitting party PoC server buffers media transmitted from the transmitting party PoC client according to media types, and transfers media permitted to be received, which are included in the response message, among the media buffered according to types to the receiving party PoC client when the response message is received.

10. A method for initiating a PoC session including mutually different answer modes according to media types in a PoC (Push-To-Talk over Cellular) system, which includes a receiving party PoC server and a receiving party PoC client which set answer modes for at least one media type as an auto-answer mode between the receiving party PoC server and the receiving party PoC client, the method comprising the steps of:

checking, by the receiving party PoC server, answer modes according to media types when the receiving party PoC server receives a session participation request message for at least one media type from a transmitting party PoC server;

transmitting, by the receiving party PoC server, an auto-answer message for media set as an auto-answer mode to the transmitting party PoC server after the receiving party PoC server checks answer modes according to media types, and transferring the session participation request message to the receiving party PoC client;

transmitting, by the receiving party PoC client, a response message including information about whether the receiving party PoC client is to participate in a session, which is input by a user, when the receiving party PoC client receives the session participation request message;

storing, by the transmitting party PoC server, information on the answer modes according to the media types when the transmitting party PoC server receives the auto-answer message, and establishing a PoC session and granting a floor to the transmitting party PoC client; and

buffering, by the transmitting party PoC server, the received media when the transmitting party PoC server receives the media from the transmitting party client, and transferring the buffered media to the receiving party PoC client when the transmitting party PoC server receives the response message from the receiving party PoC client.

11. The method as claimed in claim 10, wherein when transmitting the response message by the receiving party PoC client, the response message including whether each of the media types is permitted to be received is transmitted, when the user makes an input indicating whether at least one media type included in the request message is permitted to be received.

12. The method as claimed in claim 10, wherein when granting the floor to the transmitting party PoC client after the transmitting party PoC server establishes the PoC session according to reception of an auto-answer message, a floor for the media set as the auto-answer mode is granted to the transmitting party PoC client.

13. The method as claimed in claim 11, wherein when granting the floor to the transmitting party PoC client after the transmitting party PoC server establishes the PoC session according to reception of an auto-answer message, a floor for the media set as the auto-answer mode is granted to the transmitting party PoC client.

14. The method as claimed in claim 12, further comprising transferring, by the transmitting party PoC server, the buffered media to the receiving party PoC client and granting the transmitting party PoC client the floor for the media permitted to be received, which is included in the response message, when the transmitting party PoC server receives the response message from the receiving party PoC client.

15. The method as claimed in claim 13, further comprising transferring, by the transmitting party PoC server, the buffered media to the receiving party PoC client and granting the transmitting party PoC client the floor for the media permitted to be received, which is included in the response message, when the transmitting party PoC server receives the response message from the receiving party PoC client.

16. The method as claimed in claim 14, further comprising transferring, by the transmitting party PoC server, the buffered media to the receiving party PoC client and granting the transmitting party PoC client the floor for the media permitted to be received, which is included in the response message, when the transmitting party PoC server receives the response message from the receiving party PoC client.

17. The method as claimed in claim 15, further comprising transferring, by the transmitting party PoC server, the buffered media to the receiving party PoC client and granting the transmitting party PoC client the floor for the media permitted to be received, which is included in the response message, when the transmitting party PoC server receives the response message from the receiving party PoC client.

18. The method as claimed in claim 10, wherein when establishing, by the transmitting party PoC server, the PoC session according to the reception of the auto-answer message and granting the floor to the transmitting party PoC client, a floor for all media requested by the transmitting party PoC client is granted to the transmitting party PoC client.

19. The method as claimed in claim 11, wherein when establishing, by the transmitting party PoC server, the PoC session according to the reception of the auto-answer message and granting the floor to the transmitting party PoC client, a floor for all media requested by the transmitting party PoC client is granted to the transmitting party PoC client

20. The method as claimed in claim 18, wherein when transferring the buffered media to the receiving party PoC client, media transmitted from the transmitting party PoC client is buffered according to media types, and media permitted to be received, which is included in the response message, among the media buffered according to media types is transmitted to the receiving party PoC client when the response message is received.

21. The method as claimed in claim 19, wherein when transferring the buffered media to the receiving party PoC client, media transmitted from the transmitting party PoC client is buffered according to media types, and media permitted to be received, which is included in the response message, among the media buffered according to media types is transmitted to the receiving party PoC client when the response message is received.