Providing push to all (PTA) service

• US 20070200915A1
• Filed: 10/17/2006
• Published: 08/30/2007
• Est. Priority Date: 02/13/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Jin-Suk
• Granted Patent: US 8,909,789 B2
• Time in Patent Office: Days
• US Class Current: 348/14.10
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/4061 Push-to services, e.g. push-to-talk or push-to-video
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/141 Setup of application sessions admission control or resource allocation in data switching networks H04L47/70
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
• 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 system and method of providing a Push To All (PTA) service enables a PTA service terminal having limited resources to efficiently perform a multi session, while performing a PTA service such as Push To Talk (PTT), Push To Video (PTV) or Message Session Relay Protocol (MSRP) with a second PTA terminal via an already established session, by rejecting another session requested by a third terminal upon a service type of the session being the same as a service type of the already established session, and by accepting the session upon the service type of the session being different from the already established session.

Claims

1. A system providing a Push To All (PTA) service, the system comprising:

at least one terminal and another terminal, the at least one terminal adapted to transmit a session rejection message to another terminal upon a service type of a session request message received from the another terminal being the same as a service type of an established first session, and to establish a second session with the another terminal upon the service type of the received session request message being different from the service type of the first session.

2. The system of claim 1, wherein the service type of the first session is either a Push To Talk (PTT) service or a Push To Video (PTV) service.

3. The system of claim 1, wherein the service type of the second session is a Message Session Relay Protocol (MSRP) service.

4. The system of claim 1, wherein the session request message comprises at least one PTA service type of Push To Talk (PTT), Push To Video (PTV) or Message Session Relay Protocol (MSRP) to establish a session with the at least one terminal.

5. The system of claim 1, wherein the at least one terminal is adapted to output session request message reception information and information on requesting a response indicating whether the session is accepted to a user upon the service type of the session request message received from the another terminal is different from the service type of the first session, and to establish the second session by receiving information on accepting the session from the user and transmitting a session acceptance message to the another terminal.

6. The system of claim 5, wherein the at least one terminal is adapted to transmit a session rejection message to the another terminal not to establish the second session upon session rejection information being input by the user.

7. The system of claim 1, wherein the at least one terminal comprises:

a transceiver adapted to transmit and receive PTA service messages to and from the another terminal; and

a controller adapted to facilitate the session rejection message being provided to the another terminal upon the service type of the session request message received by the transceiver being the same as the service type of the first session, and to facilitate the session acceptance message being provided to the another terminal to establish the second session with the another terminal upon the service type of the received message being different from the service type of the first session.

8. A terminal providing a Push To All (PTA) service, the terminal comprising:

a transceiver adapted to transmit and receive PTA service messages to and from another terminal; and

a controller adapted to facilitate a session rejection message being provided to the another terminal upon a service type of a session request message received by the transceiver being the same as a service type of an established session, and to facilitate establishing another session with the another terminal using a service type of the session request message upon the service type of the message received being different from the service type of the established session.

9. A method of providing a Push To All (PTA) service to at least one terminal, the method comprising:

receiving a session request message at a terminal with which a first session has been established, the session request message being from another terminal with which the first session has not been established;

comparing a service type of the received session request message with a service type of the first session at the terminal;

the terminal transmitting a session rejection message to the another terminal upon the service type of the received session request message being the same as the service type of the first session; and

the terminal establishing a second session with the another terminal upon the service type of the received session request message being different from the service type of the first session.

10. The method of claim 9, wherein the type of service of the first session is either a Push To Talk (PTT) service or a Push To Video (PTV) service.

11. The method of claim 9, wherein the type of service of the second session is a Message Session Relay Protocol (MSRP) service.

12. The method of claim 9, wherein the session request message comprises at least one PTA service type of Push To Talk (PTT), Push To Video (PTV) or Message Session Relay Protocol (MSRP) to establish a session with the terminal.

13. The method of claim 9, wherein the terminal establishing the second session with the another terminal comprises:

the terminal outputting session request message reception information and information on requesting a response indicating whether the session has accepted to a user upon the service type of the received session request message being different from the service type of the first session;

transmitting a session acceptance message to the another terminal upon information on accepting the session being input by the user; and

transmitting a session rejection message to the another terminal upon information on rejecting the session being input by the user.