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Method for adaptive control of windows and rates in networks

  • US 5,426,635 A
  • Filed: 09/08/1993
  • Issued: 06/20/1995
  • Est. Priority Date: 09/08/1993
  • Status: Expired due to Term
First Claim
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1. In a network comprising a node and a virtual circuit passing through said node, said virtual circuit having a window of a size K having K packets of data in transit from a data source via said virtual circuit, a method of controlling said size K of said window comprising the steps of:

  • sending a feedback signal during a time slot from said node to a point in said network connected to said data source, said feedback signal reflecting an indication of congestion in said network;

    determining at said point an ideal window of a size K based on said feedback signal and on a damping constant, said damping constant determining the relative weight accorded to a) the size of said ideal window in at least one prior time slot and b) said feedback signal, said size K of said ideal window reflecting an ideal number of packets in transit from said data source via said virtual circuit; and

    generating a window size control signal for controlling said window of said size K based on said ideal window.

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