Patent ID: 7924724
Filing Date: 2011-04-12
Classification: H04L,H04Q

Abstract:
1. A method for handling an overload condition in a communication network, comprising: calculating a per active source call target rate by a core signaling network element for an edge signaling network element; sending the per active source call target rate by the core signaling network element to the edge signaling network element, when a total queueing delay of the core signaling network element exceeds a predefined high threshold in a measurement interval, wherein the per active source call target rate is used by the edge signaling network element in an overload control that throttles signaling traffic; and deactivating the overload control by the edge signaling network element to stop throttling the signaling traffic if the total queueing delay of the core signaling element drops below a predefined low threshold in a measurement interval, wherein the predefined low threshold is calculated by multiplying a predefined low watermark factor, β, with a predefined target queueing delay parameter, d