Method and apparatus for coordinating end-to-end quality of service requirements for media flows in a multimedia session
First Claim
1. A method for assuring a quality of service for a multimedia session including plural media data streams between a first user terminal associated with a first local access network and a second user terminal associated with a second local access network, where the first and second local networks are coupled to an IP network, comprising:
- the first user terminal determining whether there are sufficient resources in the first local access network to support a quality of service requested for each of the media data streams; and
furthermore that the media data streams are allowed to use the IP network via the first local access network and the first user terminal sending a first message to the second user terminal confirming that determination;
the second user terminal determining whether there are sufficient resources in the second local access network to support a quality of service requested for each of the media data streams; and
the second user terminal sending a second message to the first user terminal confirming that determination, wherein the sending of the first and second messages assures the requested quality of service for each media data stream in the session will be provided.
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Abstract
The present invention provides a method to assure end-to-end quality of service for a multimedia session including plural media data streams. The multimedia session is between a first user terminal associated with a first local access network and a second user terminal associated with a second local access network. The first and second local networks are coupled to an IP backbone network. During session setup, the user terminals each request confirmation from the other that its local access network can provide the quality of service requested for the session. The first user terminal determines whether there are sufficient resources in the first local access network to support a quality of service in its local access network to support a quality of service requested for each of the media data streams. Once this is determined, the first user terminal sends a message to the second user terminal confirming that QoS assurance. Similarly, the second user terminal determines that there are sufficient resources in the second local access network to support the quality of service requested for each media data stream. A message is sent to the first user terminal confirming that quality of service determination. The IP network supports the requested quality of service for each media data stream in the session without the need for any formal resource reservation signaling using, for example, the differentiated services QoS provisioning mechanism, network dimensioning, and traffic engineering. Thus, the requested quality of service for each media data stream in the session can be assured without having to use more complex, costly, and less flexible resource reservation protocols.
77 Citations
56 Claims
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1. A method for assuring a quality of service for a multimedia session including plural media data streams between a first user terminal associated with a first local access network and a second user terminal associated with a second local access network, where the first and second local networks are coupled to an IP network, comprising:
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the first user terminal determining whether there are sufficient resources in the first local access network to support a quality of service requested for each of the media data streams; and
furthermore that the media data streams are allowed to use the IP network via the first local access network andthe first user terminal sending a first message to the second user terminal confirming that determination;
the second user terminal determining whether there are sufficient resources in the second local access network to support a quality of service requested for each of the media data streams; and
the second user terminal sending a second message to the first user terminal confirming that determination, wherein the sending of the first and second messages assures the requested quality of service for each media data stream in the session will be provided. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for end-to-end resource coordination for a multimedia session including plural media data streams between a first mobile terminal associated with a first local access network and a second mobile terminal associated with a second local access network, where the first and second local networks are coupled to an IP network, comprising:
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the first mobile terminal using a PDP context activation procedure to determine if sufficient resources can be provisioned in the first local access network to support a quality of service (QoS) requested for each of the media data streams in the session, and if so, sending a first QoS confirmation message to the second mobile terminal, and the second mobile terminal using a PDP context activation procedure to determine if sufficient resources can be provisioned in the second local access network to support a quality of service (QoS) requested for each of the media data streams in the session, and if so, sending a second QoS confirmation message to the first mobile terminal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A first mobile radio terminal for determining a quality of service for a multimedia session including plural media data streams between the first mobile radio terminal associated with a first local mobile access network and a second user terminal associated with a second local access network, where the first local mobile access network and the second local network are coupled to an IP network, comprising:
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radio transceiving circuitry, and electronic circuitry, coupled to the radio transceiving circuitry, configured to determine whether there are sufficient resources in the first local mobile access network to support a quality of service requested for each of the media data streams and to send a confirmation message to the second user terminal confirming that determination. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A communications system providing resources for a multimedia session including plural media data streams between first and second mobile terminals, comprising:
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an IP network;
a first local mobile access network coupled to the IP network;
a first mobile terminal associated with the first local mobile access network configured to use a procedure to establish a packet data connection from the first mobile terminal through the first local mobile access network and to determine if sufficient resources can be provisioned in the first local mobile access network to support a quality of service (QoS) requested for each of the media data streams in the session, and furthermore, that the media data streams are allowed to use the IP network via the first local access network, and if so, to send a first QoS confirmation message to the second mobile terminal;
a second local mobile access network coupled to the IP network; and
a second mobile terminal associated with the second local mobile access network configured to use a procedure to establish a packet data connection from the first mobile terminal through the first local mobile access network and to determine if sufficient resources can be provisioned in the second local mobile access network to support a quality of service (QoS) requested for each of the media data streams in the session, and furthermore, that the media data streams are allowed to use the IP network via the second local access network, and if so, to send a second QoS confirmation message to the first mobile terminal. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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Specification