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:
May. 11, 2021

Filed:

Aug. 21, 2018
Applicant:

British Telecommunications Public Limited Company, London, GB;

Inventor:

Nicholas Farrow, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/825 (2013.01); H04L 12/26 (2006.01); H04L 29/06 (2006.01); H04N 21/2662 (2011.01); H04W 24/08 (2009.01); H04W 28/02 (2009.01);
U.S. Cl.
CPC ...
H04L 47/25 (2013.01); H04L 43/087 (2013.01); H04L 43/0894 (2013.01); H04L 65/4076 (2013.01); H04N 21/2662 (2013.01); H04W 24/08 (2013.01); H04W 28/0252 (2013.01);
Abstract

The invention sets out a method where a critical loading related to jitter associated with a link between the access point and a client device is determined. This critical load is the load beyond which retransmissions are insufficient for the client device to repair the video stream. The critical load is determined by sending data at varying transmission rates during a calibration mode, and measuring the jitter and packet loss rate. A safe load is then set as a fraction of this critical load. The loading associated with a multicast stream is then monitored with reference to this safe load, and if the safe load is met or exceeded, then action is taken to avoid packet loss increasing to a critical level. One action may be to adjust the transmission rate of the multicast stream for example, such that the load is reduced to below the safe load level.


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