Congestion-based traffic metering

摘要

In one aspect, the invention provides apparatuses and methods for communicating, from one network node to another network node, congestion information. Advantageously, the congestion information may be communicated at a per-packet level so that the node receiving the congestion information may meter the network usage of a user based, at least in part, upon the level of network congestion experienced by each packet sent or received by the user.