Patent ID: 8194722
Filing Date: 2012-06-05
Classification: H04L

Abstract:
1. A digital subscriber line (DSL) modem receiver, comprising: an impulse noise predictor configured to predict whether a data frame from among a plurality of data frames will be affected by impulse noise and to identify a number of subsequent frames from among the plurality of data frames that will be affected by the impulse noise based upon a periodicity of the impulse noise; and a demodulator configured to demodulate the plurality of data frames using parameters from at least one of a first table and a second table, the parameters from the first table being used for the data frame and the subsequent frames that are predicted to be affected by the impulse noise, and the parameters from the second table being used when the data frame is not predicted to be affected by the impulse noise, wherein the impulse noise predictor is further configured to determine a plurality of frame numbers corresponding to the data frame and the subsequent frames and to determine a number of frames at which the demodulator is to use the first table.