Routing of Traffic in a Multi-Domain Network
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Abstract
A multi-domain network comprises a first network domain, e.g., a fixed access domain, and a second network domain, e.g., a cellular network domain. The first network domain includes a gateway (24) providing a first access to a packet network. The second network domain includes a further gateway (14) providing a second access to the packet network. A policy controller determines an anchoring rule for controlling whether the gateway (24) selects a first route (25) or a second route (15) for data traffic of a user equipment. The first route extends between the gateway (24) and the first access, and the second route extends, via the further gateway (14), between the gateway (24) and the second access. Further, the policy controller sends control data to control application of the anchoring rule by the gateway (24).
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Citations
36 Claims
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1-19. -19. (canceled)
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20. A method of routing data traffic of a user equipment in a network, the network comprising a first network domain with a first gateway providing a first access to a packet network and a second network domain with a second gateway providing a second access to the packet network, the method comprising:
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determining, by a policy controller of the second network domain and based on a service associated with the data traffic, an anchoring rule for controlling whether the first gateway selects a first route or a second route for the data traffic, the first route extending between the first gateway and the first access, and the second route extending via the second gateway between the first gateway and the second access; and the policy controller sending control data to control application of the anchoring rule by the gateway. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A method of routing data traffic of a user equipment in a network, the network comprising a first network domain with a first gateway providing a first access to a packet network and a second network domain with a second gateway providing a second access to the packet network, the method comprising:
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the first gateway receiving control data from a policy controller of the second network domain; and based on the received control data, the first gateway applying an anchoring rule to select, depending on a service associated with the data traffic, between a first route or a second route for the data traffic, the first route extending between the first gateway and the first access, and the second route extending via the second gateway between the first gateway and the second access. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. A policy controller for controlling data traffic of a user equipment in a network, the network comprising a first network domain with a first gateway providing a first access to a packet network and a second network domain with a second gateway providing a second access to the packet network, the policy controller configured to control the gateway of the second network domain and comprising:
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one or more processing circuits configured to determine, based on a service associated with the data traffic, an anchoring rule for controlling whether the gateway selects a first route or a second route for the data traffic, the first route extending between the first gateway and the first access and the second route extending via the second gateway between the first gateway and the second access; and an interface for sending control data to control application of the anchoring rule by the first gateway.
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36. A first gateway for use in a first network domain of a network, the gateway comprising:
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a first interface configured to connect to a user equipment; a second interface configured to provide a first access to a packet network; a third interface configured to connect to a second gateway in a second network domain, the second gateway providing a second access to the packet network; a fourth interface configured to receive control data from a policy controller of the second network domain; and one or more processing circuits configured to apply, based on the received control data, an anchoring rule to select, depending on a service associated with the data traffic, between a first route or a second route for data traffic of the user equipment, the first route extending between the first gateway and the first access, and the second route extending via the second gateway between the first gateway and the second access.
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Specification