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:
Aug. 15, 2023

Filed:

Aug. 06, 2021
Applicant:

British Telecommunications Public Limited Company, London, GB;

Inventors:

Rory Turnbull, London, GB;

Timothy Stevens, London, GB;

Stephen Appleby, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 65/611 (2022.01); H04L 67/02 (2022.01); H04L 65/612 (2022.01);
U.S. Cl.
CPC ...
H04L 65/611 (2022.05); H04L 65/612 (2022.05); H04L 67/02 (2013.01);
Abstract

Described is a method of delivery of content to a client device. In particular, the method can be applied to hybrid unicast/multicast delivery networks, where content is provided by a content server to a root proxy, and that root proxy delivers the content to edge proxies over multicast. However, requests for that content in the form of HTTP GET requests from a client device are received by an edge proxy, which subsequently sends an HTTP HEAD request for header information associated with that content directly to the content server. The content server responds over unicast with a suitable response to the HTTP HEAD request, which is received by the edge proxy. The edge proxy takes the response together with the payload from the content segment received over multicast, to generate a client specific content segment for delivery to the client device over unicast.


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