Patent ID: 6292466
Filing Date: 2001-09-18
Classification: H04L,H04Q

Abstract:
Method for Connection Admission Control (CAC) in a high-speed packet switched network, in which a request for a new connection or for a bandwidth expansion is accepted or rejected in dependence of a newly required transmission capacity and an already reserved transmission capacity, said method comprising the following steps:regularly measuring actual traffic rate to produce sequential samples representing a traffic signal,separating, for a window of such samples, in an iterative and adaptive signal transformation operation, a high frequency portion of said traffic signal, and changing, preferably in each iteration, said separated high frequency portion until a given relation between said high frequency portion and available buffer size is satisfied;determining, in a reverse transform operation, from the remaining low frequency portion of said traffic signal an effective capacity value, andusing said effective capacity value as a basis for connection admission control procedure.