Patent ID: 7623459
Filing Date: 2009-11-24
Classification: H04L

Abstract:
1. A method comprising: monitoring, at a first node of a plurality of communication nodes, a traffic flow condition associated with a first traffic flow between the first node and a second node, the first traffic flow having a first access category, the first access category being associated with a plurality of access categories and having a first priority characteristic to access a communication resource of the plurality of communication nodes; first determining at the first node, in response to said monitoring, a congestion in the first traffic flow between the first node and the second node; generating, at the first node, a first notification for a third node based at least in part on the first priority characteristic, a second priority characteristic and said first determining, the third node being associated with a second traffic flow between the first node and the third node, the second traffic flow having a second access category, and the second access category having the second priority characteristic to access the communication resource, wherein the first notification is generated to instruct the third node to reduce the second traffic flow by reducing a transmission rate of data at the third node; second determining at the first node, in response to said monitoring, an improvement in the first traffic flow; and generating at the first node, a second notification for a fourth node based at least in part on the first priority characteristic, a third priority characteristic and said second determining, the fourth node being associated with a third traffic flow between the first node and the fourth node, the third traffic flow having a third access category, and the third access category having the third priority characteristic to access the communication resource; wherein the second notification is generated to instruct the fourth node to increase the third traffic flow by increasing the transmission rate of data at the fourth node in response to detecting that the priority of the third access category is relatively higher than or equal to the priority of the first access category.