Patent ID: 6532214
Filing Date: 2003-03-11
Classification: H04M,H04Q

Abstract:
A method of controlling traffic through at least one node in an intelligent telecommunications network having a plurality of subsystems each of which provides subscriber services in response to requests from customers for the services, said method comprising the steps of:continuously monitoring a moving average of a traffic profile for each subsystem at the node wherein the moving average of the traffic profile for a particular subsystem is monitored by: counting the amount of requests for particular subscriber services received at the node within predetermined sequential monitoring time periods; comparing the amount of requests for a particular subscriber service with the total number of requests for all subscriber services received at the node in each predetermined monitoring time period; calculating an average of the amount of requests for particular subscriber services received over a plurality of the preceding monitoring time periods; and comparing the amount of requests for a particular subscriber service in a most recent or current monitoring time period with the average of the amount of requests for that particular subscriber service over said plurality of preceding monitoring time periods in order to determine whether or not a sudden change in the traffic profile for that subscriber service has occurred; detecting when congestion occurs at the node; determining from said moving average of the traffic profile whether the congestion is caused by a sudden change in the traffic profile for a particular subsystem at the node; and invoking congestion controls to control congestion in the particular subsystem in which a sudden change in the traffic profile is determined.