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:
Jun. 09, 2020

Filed:

Sep. 15, 2017
Applicant:

At&t Intellectual Property I, L.p., Atlanta, GA (US);

Inventors:

Jian Li, San Ramon, CA (US);

Raghvendra Savoor, Walnut Creek, CA (US);

Zhi Li, Martinez, CA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 21/235 (2011.01); H04N 7/173 (2011.01); H04N 21/44 (2011.01); H04N 21/234 (2011.01); H04N 21/4788 (2011.01); H04N 21/6405 (2011.01); H04N 21/643 (2011.01); H04N 21/6587 (2011.01);
U.S. Cl.
CPC ...
H04N 21/44016 (2013.01); H04N 7/17318 (2013.01); H04N 21/23424 (2013.01); H04N 21/4788 (2013.01); H04N 21/6405 (2013.01); H04N 21/64322 (2013.01); H04N 21/6587 (2013.01);
Abstract

A method includes storing multicast transmission data at a peer-to-peer server. The multicast transmission data indicates multicast groups to which network elements are joined. The method includes receiving, at the peer-to-peer server from a first network element, a request related to a previously sent data packet of media content. The method includes determining, at the peer-to-peer server, whether a second network element can be identified, where the second network element was joined to a multicast group associated with the media content when the previously sent data packet was sent. The method also includes, in response to identifying the second network element, sending information identifying the second network element from the peer-to-peer server to the first network element.


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