Patent ID: 7139830
Filing Date: 2006-11-21
Classification: H04L,H04W

Abstract:
1. A communication apparatus for communicating with a plurality of stations and executing regulation control at a time of congestion, comprising: a congestion monitoring unit to monitor a congestion state, setting a congestion level and determining whether or not to perform regulation based on said congestion level; wherein said congestion monitoring unit uses at least one of a processor occupancy rate and a response time with respect to a received signal as an index at a time of setting said congestion level, a traffic measuring unit to measure a traffic intensity; wherein said traffic measuring unit measures the number of signals received from the stations as a traffic intensity, a traffic comparison unit to compare said traffic intensity with a preset traffic-regulation start traffic intensity when it is determined that regulation is to be performed; and a regulation control unit to perform traffic regulation control when a comparison result shows that said traffic intensity is equal to or greater than said traffic-regulation start traffic intensity, and performing regulation control on a maintenance and operation process when said traffic intensity is smaller than said traffic-regulation start traffic intensity; wherein said regulation control means sends an alarm to a maintenance terminal to stop the maintenance and operation process, when the traffic regulation control is performed; and wherein said regulation control unit executes said traffic regulation control by changing stations to be regulated and a number of said stations to be regulated; and wherein said regulation control unit includes a regulation pattern selection table which is comprised of patterns P and wherein if the cycle number of the processor is Ca(1≦a≦n) while the traffic regulation control is performed, said regulation control unit reads the pattern Pa of the same number as the cycle Ca of the processor from the regulation pattern selection table and selects the top N stations in the selected pattern by using the order-of-regulation-targets table, when the number of stations to be regulated is identified “N”.