METHOD AND SYSTEM FOR CONTROLLING SESSION FOR INTERWORKING IN CONVERGED IP MESSAGING SERVICE

• US 20100138484A1
• Filed: 11/30/2009
• Published: 06/03/2010
• Est. Priority Date: 11/28/2008
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: LEE, Kyung-Tak, LEE, Seung-Yong, PARK, Sung-Jin
• Granted Patent: US 8,566,405 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: H04L 51/56 Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]
• CPC Class Codes: H04L 65/00 Network arrangements, protocols or services for supporting real-time applications in data packet communication real-time or near real-time messaging, e.g. instant messaging [IM] H04L51/04; selective video distribution H04N21/00
• CPC Class Codes: H04L 65/1089 by adding media; by removing media
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601

Abstract

Disclosed is a session control method in a Converged Internet Protocol (IP) Messaging (CPM) server for supporting a CPM session between a first client subscribing to a CPM service and a second client not subscribing to the CPM service, the session control method includes, after the CPM session is initiated between the first and second clients through the CPM server and an Interworking Function (IWF), receiving a session modification request message including specific media from the first client; sending the session modification request message including the specific media to the IWF through the initiated CPM session; and receiving a response message from the IWF, the response message including a reason for a rejection of the session modification request message including the specific media.

Claims

1. A session control method in a Converged Internet Protocol (IP) Messaging (CPM) server for supporting a CPM session between a first client subscribing to a CPM service and a second client not subscribing to the CPM service, the session control method comprising the steps of:

after the CPM session is initiated between the first and second clients through the CPM server and an Interworking Function (IWF), receiving a session modification request message including specific media from the first client;

sending the session modification request message including the specific media to the IWF through the initiated CPM session; and

receiving a response message from the IWF, the response message including a reason for a rejection of the session modification request message including the specific media.

2. The session control method as claimed in claim 1, further comprising, when the reason for the rejection, included in the response message, is that the specific media is unsupported by the IWF, sending a session request for the rejected specific media to an Interworking Selection Function (ISF).

3. A session control method in an Interworking Function (IWF) for supporting a Converged Internet Protocol (IP) Messaging (CPM) session between a first client subscribing to a CPM service and a second client not subscribing to the CPM service, the session control method comprising the steps of:

after the CPM session is initiated between the first and second clients through a CPM server and the IWF, receiving a session modification request message including specific media from the first client through the CPM server; and

when the specific media is unsupported by the IWF, sending a response message to the CPM server, the response message including a reason for a rejection, which is an indication that the specific media is unsupported by the IWF.

4. An interworking apparatus for supporting a Converged Internet Protocol (IP) Messaging (CPM) session between a first client subscribing to a CPM service and a second client not subscribing to the CPM service, the interworking apparatus comprising:

at least one Interworking Function (IWF) for supporting each of at least one media, and generating a reason for a rejection, which is an indication that a corresponding media is unsupported by the IWF, when receiving an interworking request for the media unsupported by the IWF; and

an Interworking Selection Function (ISF) for selecting an entity to undertake interworking of specific media from among the at least one IWF when receiving a session modification request message including the specific media from the first client through a CPM server after the CPM session is initiated between the first and second clients through the CPM server and the IWF.

5. The interworking apparatus as claimed in claim 4, further comprising a controller for instructing the ISF to reselect an entity to undertake interworking of the specific media when receiving from the IWF the reason of the rejection, which indicates that the specific media is unsupported by the IWF.

6. A session control method in a Converged Internet Protocol (IP) Messaging (CPM) server for supporting a CPM session between a first client subscribing to a CPM service and a second client not subscribing to the CPM service, the session control method comprising the steps of:

receiving a session initiation message including specific media from the first client;

sending the session initiation message to including the specific media to an Interworking Function (IWF) through an Interworking Selection Function (ISF); and

receiving a response message from the IWF through the ISF, the response message including a reason for a rejection of the session initiation message.

7. The session control method as claimed in claim 6, further comprising, when the reason for rejection is that the specific media is unsupported by the IWF, resending the session initiation message including the specific media to the ISF.

8. A session control method in an Interworking Function (IWF) for supporting a Converged Internet Protocol (IP) Messaging (CPM) session between a first client subscribing to a CPM service and a second client not subscribing to the CPM service, the session control method comprising the steps of:

receiving a session initiation message including specific media from the first client through a CPM server; and

when the specific media is unsupported by the IWF, sending a response message to the CPM server, the response message including a reason for a rejection, which indicates that the specific media is unsupported by the IWF.

9. An interworking apparatus for supporting a Converged Internet Protocol (IP) Messaging (CPM) session between a first client subscribing to a CPM service and a second client not subscribing to the CPM service, the interworking apparatus comprising:

at least one Interworking Function (IWF) for supporting each of at least one media, and generating a reason for a rejection, which indicates that a corresponding media is unsupported by the IWF, when receiving an interworking request for the media unsupported by the IWF; and

an Interworking Selection Function (ISF) for selecting an entity to undertake interworking of specific media from among the at least one IWF when receiving a session initiation request message including the specific media from the first client through a CPM server.

10. The interworking apparatus as claimed in claim 9, further comprising a controller for instructing the ISF to reselect an entity to undertake interworking of the specific media when receiving the reason of the rejection, which indicates that the specific media is unsupported by the IWF, from the IWF.