Patent ID: 6366559
Filing Date: 2002-04-02
Classification: H04Q

Abstract:
A method for admission control of multi-rate circuit-switched traffic on a candidate link in a communications network comprising a network controller and a plurality of nodes interconnected by one or more links, said method comprising the steps of:determining at one of the nodes, with respect to a fixed occupancy in the link incident at the one of the nodes, using Markov decision processing, a set of expected admission costs corresponding to a set of occupancies in the link, respectively; communicating the set of expected admission costs to the network controller; in response to receiving a call at the one of the nodes, determining in the network controller a difference between the expected admission cost corresponding to the occupancy in the link resulting from admission of the multi-rate traffic onto the link and the expected admission cost corresponding to a current occupancy of the link; admitting the multi-rate circuit-switched traffic onto the link when the difference is less than a cost threshold; and rejecting the multi-rate circuit-switched traffic when the difference is equal to or greater than the cost threshold, such that a total traffic loss rate in the link is minimized.