SYSTEM AND METHOD FOR CHOOSING AN OUTGOING PATH FOR A MEDIA FLOW IN A NEXT GENERATION NETWORK
First Claim
1. A system for choosing an outgoing path for a media flow in a Next Generation Network (NGN) network, comprising:
- an application layer signalling resolving module set in a Service Control Function (SCF), for determining requirement of a media flow on forwarding by resolving an application layer signalling;
a Policy Decision Function (PDF), for determining an Identification (ID) of the outgoing path for the media flow according to the requirement of the media flow on forwarding provided by the application layer signalling resolving module, and a policy stored by the PDF;
a traffic forwarding control module set in a Border Gateway Function (BGF), for controlling forwarding of the media flow according to the ID of the outgoing path provided by the PDF, and steering the media traffic to the outgoing path.
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Abstract
A system and a method for choosing an outgoing path for a media flow in a Next Generation Network (NGN) are disclosed. First, an application layer signalling resolving module in a Service Control Function (SCF) resolves an application layer signalling to determine requirement of a media flow on forwarding and provides determined requirement to a Policy Decision Function (PDF); then, the PDF determines identification (ID) of an outgoing path for the media flow according to requirement of the media flow on forwarding and a policy stored by itself, and provides determined ID to a traffic forwarding control module in a Border Gateway Function (BGF); finally, the traffic forwarding control module in the BGF controls the forwarding of the media flow, and steering the media flow to the outgoing path according to the ID of the
27 Citations
8 Claims
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1. A system for choosing an outgoing path for a media flow in a Next Generation Network (NGN) network, comprising:
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an application layer signalling resolving module set in a Service Control Function (SCF), for determining requirement of a media flow on forwarding by resolving an application layer signalling;
a Policy Decision Function (PDF), for determining an Identification (ID) of the outgoing path for the media flow according to the requirement of the media flow on forwarding provided by the application layer signalling resolving module, and a policy stored by the PDF;
a traffic forwarding control module set in a Border Gateway Function (BGF), for controlling forwarding of the media flow according to the ID of the outgoing path provided by the PDF, and steering the media traffic to the outgoing path. - View Dependent Claims (2, 3, 4)
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5. A method for choosing an outgoing path for a media flow in a Next Generation Network (NGN) network, comprising:
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determining requirement of a media flow on forwarding by resolving an application layer signalling;
determining an Identification (ID) of the outgoing path for the media flow according to the requirement of the media flow on forwarding as well as a policy;
controlling forwarding of the media flow according to the ID of the outgoing path, and steering the media flow to the outgoing path. - View Dependent Claims (6, 7, 8)
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Specification