Method for the mapping of packet flows to bearers in a communication system
First Claim
1. A method for mapping at least two packet flows onto at least two bearers in a communication system comprising at least a terminal, a first network node and a second network node, the method comprising:
- initiating an establishment of a session between said terminal and a remote terminal;
receiving information about said session and said at least two packet flows in said second network node;
agreeing to the establishment of said at least two bearers between said terminal and said first network node;
said first network node obtaining from said second network node a packet classifier for each of said at least two packet flows;
establishing at least a first bearer of said at least two bearers;
receiving a packet associated with said first bearer in said first network node;
matching said packet with at least one of said packet classifiers to determine a first packet flow among said at least two packet flows; and
establishing a mapping between a packet flow pair, said packet flow pair comprising said first packet flow and a corresponding opposite direction packet flow, and said first bearer in said first network node.
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Accused Products
Abstract
The invention relates to a method for the mapping of packet flows onto bearers in a communication system. The establishment of a session between a terminal and a remote terminal is initiated. Information on the session and packet flows associated with it is received to a second network node. A first network node obtains from the second network node one or two packet classifiers for each of the packet flows. At least a first bearer belonging to the bearers is established between the terminal and the first network node. A packet associated with the first bearer is received in the first network node. The packet is matched with the one or two packet classifiers associated with each of the packet flows to determine a first packet flow among the packet flows. A mapping is established between the first packet flow and the first bearer in the first network node.
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Citations
45 Claims
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1. A method for mapping at least two packet flows onto at least two bearers in a communication system comprising at least a terminal, a first network node and a second network node, the method comprising:
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initiating an establishment of a session between said terminal and a remote terminal;
receiving information about said session and said at least two packet flows in said second network node;
agreeing to the establishment of said at least two bearers between said terminal and said first network node;
said first network node obtaining from said second network node a packet classifier for each of said at least two packet flows;
establishing at least a first bearer of said at least two bearers;
receiving a packet associated with said first bearer in said first network node;
matching said packet with at least one of said packet classifiers to determine a first packet flow among said at least two packet flows; and
establishing a mapping between a packet flow pair, said packet flow pair comprising said first packet flow and a corresponding opposite direction packet flow, and said first bearer in said first network node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for mapping at least two packet flows onto at least two bearers comprising:
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a terminal configured to initiate an establishment of a session with a remote terminal, to agree to the establishment of said at least two bearers with a first network node, and to establish at least a first bearer of said at least two bearers;
a first network node configured to agree to the establishment of said at least two bearers with said terminal, to obtain a packet classifier for each of said at least two packet flows, to establish at least a first bearer of said at least two bearers, to receive a packet associated with said first bearer, to match said packet with at least one of said packet classifiers to determine a first packet flow among said at least two packet flows and to establish a mapping between a packet flow pair, said packet flow pair comprising said first packet flow and a corresponding opposite direction packet flow, and said first bearer;
a second network node configured to receive information about said session and said at least two packet flows, and to provide a packet classifier for each said at least two packet flows. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A network node for mapping at least two packet flows onto at least two bearers, the network node comprising:
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a policy enforcement function configured to agree to an establishment of a at least two bearers with said terminal, to obtain a packet classifier for each of said at least two packet flows, to establish at least a first bearer of said at least two bearers, to receive a packet associated with said first bearer, to match said packet with at least one of said packet classifiers to determine a first packet flow among said at least two packet flows and to establish a mapping between a packet flow pair, said packet flow pair comprising said first packet flow and a corresponding opposite direction packet flow, and said first bearer.
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42. A computer program comprising code adapted to perform the following steps when executed on a data-processing system:
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agreeing to an establishment of at least two bearers with a terminal;
receiving a packet classifier for each of at least two packet flows;
establishing at least a first bearer of said at least two bearers;
receiving a packet associated with said first bearer;
matching said packet with at least one of said packet classifiers to determine a first packet flow among said at least two packet flows; and
establishing a mapping between a packet flow pair, said packet flow pair comprising said first packet flow and a corresponding opposite direction packet flow, and said first bearer. - View Dependent Claims (43, 44, 45)
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Specification