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Abstract

Relating to Active Queue Management (AQM) in wireless communication networks, a method of congestion control in a first network node. The first network node is operable in a wireless communication network utilizing a distributed queue system for in-sequence delivery of data packets between the first network node and a second network node. A condition indicative of congestion is detected by the first network node. In response thereto, a control message is transmitted from the first network node to the second network node. The control message comprises an instruction to the second network node to discard, or distort, a subsequent data packet. The receiving, network node is thus made aware of the congestions situation relatively quickly. Accordingly, the second network node may speedily take appropriate measures by discarding, or distorting, a subsequent data packet and thereby establish a congestion avoidance mechanism.

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First Claim