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:
Oct. 14, 2025

Filed:

Oct. 31, 2023
Applicant:

Akamai Technologies, Inc., Cambridge, MA (US);

Inventors:

William R. Sears, Lexington, MA (US);

Martin K. Lohner, Medford, MA (US);

Assignee:

Akamai Technologies, Inc., Cambridge, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 47/24 (2022.01); H04L 12/46 (2006.01); H04L 47/125 (2022.01);
U.S. Cl.
CPC ...
H04L 47/24 (2013.01); H04L 47/125 (2013.01); H04L 12/4633 (2013.01);
Abstract

A method of congestion control implemented by a sender over a network link that includes a router having a queue. During a first state, information is received from a receiver. The information comprises an estimated maximum bandwidth for the link, a one-way transit time for traffic over the link, and an indication whether the network link is congested. In response to the link being congested, the sender transitions to a second state. While in the second state, a sending rate of packets in reduced, in part to attempt to drain the queue of data packets contributed by the sender. The sender transitions to a third state when the sender estimates that the queue has been drained of the data packets contributed. During the third state, the sending rate is increased until either the sender transitions back to the first state, or receives a new indication that the link is congested.


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