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.

Date of Patent:
Apr. 25, 2017

Filed:

Mar. 11, 2013
Applicant:

British Telecommunications Public Limited Company, London, GB;

Inventors:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 12/823 (2013.01); H04L 12/801 (2013.01); H04L 12/835 (2013.01); H04L 12/833 (2013.01);
U.S. Cl.
CPC ...
H04L 43/062 (2013.01); H04L 43/0876 (2013.01); H04L 47/12 (2013.01); H04L 47/30 (2013.01); H04L 47/31 (2013.01); H04L 47/326 (2013.01);
Abstract

Methods and apparatus are disclosed for signalling congestion being caused by data items such as packets, received at a network element such as a router, in a communications network such as the Internet, or being caused by items otherwise requiring service or capacity from a shared resource. Preferred embodiments of the method involve identifying whether or not received data items received at a network element are capable of carrying congestion indications such as ECN marks, and for those that are capable, assigning congestion indications to the data items in dependence on a queue length characterization based on a substantially current, instantaneous measurement of the length of the queue, whereas for those that are not capable, a sanction such as dropping may be applied in dependence on a different queue length characterization based on a weighted moving average of current, recent, and less recent measurements of the length of the queue.


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