The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2007
Filed:
May. 28, 2002
Malcolm Carter, Bishops Stortford, GB;
David Ireland, Chelmsford, GB;
Kevin Warbrick, Bishops Stortford, GB;
Jon Weil, Trumpington, GB;
Peter Hamer, Bishops Stortford, GB;
Richard Clegg, Heslington, GB;
Arthur Clune, York, GB;
Malcolm Carter, Bishops Stortford, GB;
David Ireland, Chelmsford, GB;
Kevin Warbrick, Bishops Stortford, GB;
Jon Weil, Trumpington, GB;
Peter Hamer, Bishops Stortford, GB;
Richard Clegg, Heslington, GB;
Arthur Clune, York, GB;
Nortel Networks Limited, St. Laurent, CA;
Abstract
Congestion control in a communications network, e.g. an Internet Protocol (IP) network, is effected by controlling the egress rate of traffic from the output buffer of the system routers or switches. The traffic egressing from an output buffer is sampled at sequential intervals to determine a bit rate at each interval. An autocorrelation function is calculated from these samples and is used to provide an estimated statistical measure or parameter indicative of congestion and related to a long range dependence of the traffic. A calculation is then made as to whether an increase or a decrease in the buffer output rate would result in a decrease in the congestion parameter, and the buffer output rate is adjusted accordingly.