| 摘要 |
A method, a gateway and an authoritative node for refining quality of service (QoS) mapping for a plurality of packet flows transiting between two networks, wherein the packet flows pertain to a session, comprising capabilities for receiving a request for transiting the packet flows of the session between the two networks and if the request contains an appropriate authorization, associating at least a first one and a second one of the packet flows of the session transporting different types of content with at least a first and a second QoS levels in a mapping table and routing the packet flows between two networks in accordance with the associated QoS levels. Optionally, the step of receiving may further comprise communicating with an authoritative node to fetch a maximum authorized QoS level for each of the packet flows, wherein the QoS levels in the mapping table are set below the maximum authorized QoS level.
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