Congestion control method and system in an exchange
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United States of America Patent
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Aug 14, 2001
Grant Date -
N/A
app pub date -
Oct 13, 1998
filing date -
Mar 10, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is provided to improve congestion control without changing a quality of a connection service of communications even if congestion occurs and realize a flexible correspondence. The congestion control method, comprising the steps of generating a call pattern as time series data of calls from a subscriber, performing Fast Fourier transformation on the time series data of the calls to detect short periodic component of a frequency, delaying the detected short periodical component with a prescribed threshold, and delaying a timing of sending a congestion tone (CT) or busy tone (BT) when the value of the short periodical component exceeds the prescribed threshold.
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