Patent ID: 8325828

Claim:
A method, comprising: receiving, at a receiver, a discrete multi-tone (DMT) symbol transmitted by a transmitter; determining received signal points based on the received DMT symbol; determining, at the receiver and based on information known a priori by the receiver, actual transmitted signal points corresponding to pilot tones and monitored tones in the received DMT symbol, wherein: each pilot tone is generated at the transmitter as a corresponding sequence of signal points, each sequence of signal points corresponding to a pilot tone is known a priori by the receiver, each monitored tone is generated at the transmitter as a corresponding sequence of signal points and at least one of the monitored tones is generated at the transmitter using a pseudo-random sequence, and determining actual transmitted signal points includes recreating, at the receiver, the pseudo-random sequence utilized at the transmitter to generate the at least one monitored tone; determining an error between the received signal points and the actual transmitted signal points determined at the receiver; and generating an indicator of impulse noise based on the error.