Patent ID: 6687307
Filing Date: 2004-02-03
Classification: H04L

Abstract:
In a multitone transmitter, a method for developing a multitone signal, the method comprising:developing a frequency domain burst of N frequency domain symbols; phase rotating said frequency domain symbols to produce phase-rotated frequency domain symbols; transforming said phase-rotated frequency domain symbols into a time domain burst; and appending to an end of said time domain burst a cyclic postfix duplicating a first v time domain symbols of said time domain burst; wherein N and v are positive integers and wherein said phase rotating is performed so as to make a result of said appending equivalent to an expected result of: transforming said frequency domain symbols into a second time domain burst without phase rotating said frequency domain symbols; and appending to a beginning of said second time domain burst a cyclic prefix duplicating a last v time domain symbols of said second time domain burst.