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, 2023

Filed:

Aug. 04, 2020
Applicant:

British Telecommunications Public Limited Company, London, GB;

Inventors:

Stephen Appleby, London, GB;

Rory Turnbull, London, GB;

Timothy Stevens, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 21/266 (2011.01); H04N 21/222 (2011.01); H04N 21/239 (2011.01); H04N 21/6405 (2011.01); H04N 21/6408 (2011.01);
U.S. Cl.
CPC ...
H04N 21/26616 (2013.01); H04N 21/222 (2013.01); H04N 21/2393 (2013.01); H04N 21/6405 (2013.01); H04N 21/6408 (2013.01);
Abstract

Described is a method of managing a network for delivering content in a hybrid unicast/multicast network, where content is requested by clients over unicast, but all or some of the content is delivered in part over multicast. A client requests content (in the form of segments) and receive the responses (segments) over unicast via a first proxy. The first proxy measures the time between requests and associated requested segment sizes. These measurements are used to effectively determine a unicast request rate given by the segment size divided by the time between requests. Subsequent requested segments can then be delivered over multicast over a portion of the route to the client using a multicast rate that is set as a function of (for example, 110% of) the unicast request rate. In general, the multicast path will be from a second proxy to the first proxy.


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