Method for controlling the quality of service in an IP multimedia system

• US 20060251043A1
• Filed: 04/19/2005
• Published: 11/09/2006
• Est. Priority Date: 04/18/2005
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Bishai, Nadia, Sultana, Shabnam, Madour, Lila
• Granted Patent: US 7,561,579 B2
• Time in Patent Office: Days
• US Class Current: 370/349
• CPC Class Codes: H04L 47/2425 for supporting services specification, e.g. SLA
• CPC Class Codes: H04W 28/24 Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 4/24 Accounting or billing
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

The invention relates a method for providing a level of service for a Mobile Terminal (MT) in a packet data telecommunications network. The further method receives at the MT from a proxy server a request message for requesting the quality of service for a session between the MT and the proxy server. The method generates, based on a proxy server IP address received during a registration of the MT at the proxy server, a token for correlating accounting information and inform the proxy server of the quality of service to be applied to packet data sent on to be sent during the session, wherein the token includes the proxy server IP address and a session identity parameter and responsive to the reception of the request from the IMS proxy server, sending a response message including the token to the proxy server.

Claims

1. A method for providing a level of service for a Mobile Terminal (MT) in a packet data telecommunications network, the method comprising the step of:

receiving at the MT from a proxy server a request message for requesting the quality of service for a session between the MT and the proxy server;

generating, based on a proxy server IP address received during a registration of the MT at the proxy server, a token for correlating accounting information and inform the proxy server of the quality of service to be applied to packet data sent on to be sent during the session, wherein the token includes the proxy server IP address and a session identity parameter; and

responsive to the reception of the request from the IMS proxy server, sending a response message including the token to the proxy server.

2. The method of claim 1, wherein the step of receiving further includes a step of setting up a bearer connection between the MT and a Packet Data Service Node (PDSN).

3. The method of claim 1, wherein prior to the step of generating, the method comprises a step of establishing a media flow session between the MT and the IMS using the media streams set up at the MT.

4. The method of claim 1, wherein the first network is an IP Multimedia system (IMS) and the second the second network is a Packet Core Network.

5. The method of claim 1, wherein the method of claim 3 further comprises steps of:

receiving the token at a Policy Decision Function (PDF);

correlating at the PDF at the PDF accounting information between a Packet Core Network (PCN) an IP Multimedia System IMS in the packet data telecommunication network.

6. A Mobile Terminal (MT) for receiving packet data services in a packet data network, the MT comprising:

a Service Logic (SL) adapted for;

receiving from a proxy server a request message for requesting the quality of service for a session between the MT and a proxy server;

generating, based on a proxy server IP address received during a registration of the MT at the proxy server, a token for correlating accounting information and inform the proxy server of the quality of service to be applied to packet data sent on to be sent during the session, wherein the token includes the proxy server IP address and a session identity parameter; and

responsive to the reception of the request from the IMS proxy server, sending a response message including the token to the proxy server.