METHOD AND APPARATUS FOR ESTIMATING PHASE NOISE IN AN OFDM TRANSMISSION SYSTEM

摘要

A method for estimating phase noise in an OFDM transmission system is provided. The method comprises the steps of receiving (S301) an OFDM symbol and transforming (S302) the OFDM symbol from time domain to frequency domain; extracting (S303) at least one service information symbols from the OFDM symbol; estimating (S304) reference service information symbols of the extracted service information signals; and determining (S305) a phase noise representative value as a function of correlation between the extracted information symbols and the estimated reference service information signals.