APPARATUS AND METHOD FOR REMOVING ECHO SIGNAL IN SIGNAL TRANSMITTER-RECEIVER OF COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an apparatus and a method for removing an echo signal in a signal transmitter-receiver of a communication system.

SOLUTION: This apparatus for removing an echo signal estimates an input channel response by using a training sequence, generates a first signal by removing the input channel response from a first reception signal; detects an echo channel impulse response using the first signal; detects an echo signal removing coefficient using the echo channel impulse response; generates a second signal in which the echo signal is removed by applying the echo signal removing coefficient to a second reception signal; and removes the second signal from a third signal. The first signal is received prior to the receiving of the second signal, and the second signal is received prior to the receiving of the third signal.

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