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. 02, 2023

Filed:

Mar. 13, 2020
Applicant:

British Telecommunications Public Limited Company, London, GB;

Inventors:

David Rohlfing, London, GB;

Paul Benyon, London, GB;

Phil Bull, London, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/32 (2006.01); H04B 3/487 (2015.01); H04M 3/22 (2006.01); H04M 3/30 (2006.01); H04B 3/00 (2006.01); H04B 3/46 (2015.01);
U.S. Cl.
CPC ...
H04B 3/32 (2013.01); H04B 3/487 (2015.01); H04M 3/2209 (2013.01); H04M 3/30 (2013.01); H04B 3/00 (2013.01); H04B 3/46 (2013.01);
Abstract

A method is presented of determining whether a digital subscriber line is susceptible to radio frequency interference. The method measures the signal to noise ratio (SNR) margin on the digital subscriber line over a number of 24 hour periods. The measured SNR margin over a given 24 hour period is then compared to a reference function of SNR margin over time (24 hours), where the SNR margin of the reference function is higher during the day and lower during the night, and also repeats daily. A measure of the interference susceptibility is generated based on the degree of similarity between the measured SNR margin and the reference function.


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