Method, gateway system and arrangement in a communication network
First Claim
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1. A method of processing a media stream in a communications system that includes an Internet Protocol (IP) network, the method comprising the steps of:
- configuring a service for providing the media stream to a first entity, by sending a service request to a gateway controller, having a first IP address, the service request including information relevant to the first entity;
initiating the media stream for a session between the first entity and a second entity, with the first entity receiving, and the second entity sending the media stream via a data path that includes a gateway coupled to the IP network, the gateway being managed by the gateway controller;
negotiating a format for the media stream, wherein the media stream with a format unacceptable to the first entity is converted to an acceptable format by the gateway prior to forwarding the media stream to the first entity;
the first entity invoking the gateway controller, via a path between the gateway controller, and the first entity that is separate from the data path carrying the media stream between the gateway and the first entity to cause the gateway to process the media stream received from the second entity;
processing the media stream according to the negotiated formats; and
sending the processed media stream on to the first entity.
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Abstract
The present invention relates to multimedia communication between end systems in IP environments and more particularly it relates to the problem that all services concerning processing of media streams are bundled.
The solution, according to the invention is a communications system in which a service is publicly available by any end system via a published Uniform Resource Identifier (URI).
25 Citations
34 Claims
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1. A method of processing a media stream in a communications system that includes an Internet Protocol (IP) network, the method comprising the steps of:
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configuring a service for providing the media stream to a first entity, by sending a service request to a gateway controller, having a first IP address, the service request including information relevant to the first entity; initiating the media stream for a session between the first entity and a second entity, with the first entity receiving, and the second entity sending the media stream via a data path that includes a gateway coupled to the IP network, the gateway being managed by the gateway controller; negotiating a format for the media stream, wherein the media stream with a format unacceptable to the first entity is converted to an acceptable format by the gateway prior to forwarding the media stream to the first entity; the first entity invoking the gateway controller, via a path between the gateway controller, and the first entity that is separate from the data path carrying the media stream between the gateway and the first entity to cause the gateway to process the media stream received from the second entity; processing the media stream according to the negotiated formats; and sending the processed media stream on to the first entity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A node, in a communications system that is coupled with an Internet Protocol (IP) network, for processing a media stream, the node comprising:
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a gateway controller, having a first IP address, for providing the media stream to a first entity; a gateway, having a second IP address and managed by the gateway controller, for processing the media stream; means for initiating the media stream for a session between the first entity and a second entity, with the first entity receiving, and the second entity sending the media stream over the IP network via a data path that includes the gateway; means for negotiating a format for the media stream between the first and second entities, wherein a media stream having a format unacceptable to the first entity is converted to an acceptable format by the gateway prior to forwarding the media stream to the first entity; means for receiving invoking signals from the first entity for the gateway controller, via a path between the gateway and the first entity that is separate from the data path carrying the media stream between the gateway and the first entity to cause the gateway to process the media stream received from the second entity on the data path; means for processing the media stream according to the negotiated format; and means for sending the media stream to the first entity via the data path. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A communications system coupled with an Internet Protocol (IP) network for processing a media stream, the communication system comprising:
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a gateway controller having a first IP address for providing the media stream to a first entity; a gateway, having a second IP address and managed by the gateway controller, for processing the media stream; means for initiating the media stream for a session between the first entity and a second entity, with the first entity receiving, and the second entity sending the media stream over the IP network via a data path that includes the gateway; means for negotiating a format for the media stream between the first and second entities, wherein a media stream having a format unacceptable to the first entity is converted to an acceptable format by the gateway prior to forwarding the media stream to the first entity; means for receiving invoking signals from the first entity for the gateway controller, via a path between the gateway and the first entity that is separate from the data path, to cause the gateway to process the media stream between the gateway, and the first entity received from the second entity on the data path; means for processing the media stream according to the negotiated format; and means for sending the media stream to the first entity via the data path. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification