Patent ID: 8665976

Claim:
An Orthogonal Frequency Division Multiplexing (OFDM) receiver for detection of a symbol boundary for a received OFDM symbol using a M-ary Phase Shift Keying (M-PSK) modulated pilot, said OFDM receiver comprising: a Fast Fourier Transformation (FFT) window control block that positions a FFT window on said received OFDM symbol to obtain a frequency domain OFDM symbol; and a symbol boundary detection block that detects a symbol boundary of said received OFDM symbol by recording a zero mean phase deviation for said FFT window; wherein a pilot phase of said M-PSK modulated pilot is extracted from said frequency domain OFDM symbol, wherein a second order moment of said M-PSK modulated pilot is used as a cost function for determining said symbol boundary, and wherein said zero mean phase deviation is calculated by obtaining a difference between a phase difference (θ DIFF ) and a quantized phase difference (θ QDIFF ).