Methods and apparatuses for detecting impulse noise in a multi-carrier communication system
OwnerHossein Sedaratinventor
Life of this patent
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Abstract
Embodiments of an apparatus, system, and method are described for a multi-carrier communication system that detects for impulse noise present on a transmission medium. Values of peak error samples may be measured to determine an approximate magnitude of the average peak error samples present on a transmission medium. An average error value of all of the error samples may be measured to determine a standard deviation of a Gaussian distribution of background noise. An amount of peak error samples may be compared to a threshold value that is based upon a standard deviation derived from the background noise to determine if impulse noise is present on a particular tone.
Claims23
A method, comprising:
- detecting for impulse noise present in a multiple tone system;
- measuring values of peak error samples to determine an approximate magnitude of an average of peak error samples present on a transmission medium;
- measuring an average error value of all error samples to determine a standard deviation of a Gaussian distribution of background noise;
- and
- comparing an amount of peak error samples to a threshold value that is based upon a standard deviation derived from background noise to determine if impulse noise is present on a tone.
An apparatus, comprising:
- means for detecting for impulse noise present in a multiple tone system;
- means for measuring values of peak error samples to determine an approximate magnitude of an average of peak error samples present on a transmission medium;
- means for measuring an average error value of all error samples to determine a standard deviation of a Gaussian distribution of background noise;
- and
- means for comparing an amount of peak error samples to a threshold value that is based upon a standard deviation derived from background noise to determine if impulse noise is present on a first tone.
A transmitter-receiver device, comprising:
- a transmitter portion;
- and
- a receiver portion having an impulse noise detector configured to detect an error difference between an amplitude of each transmitted data point and an expected amplitude for each data point in order to detect for the presence of impulse noise;
- wherein the error difference for each transmitted data point is an error sample.
Dependencies are inferred from the claim text.