Patent ID: 7187734

Claim:
A method for implementing integer offset correction in an OFDM-based transceiver device, the method comprising the steps of: receiving two consecutive data bursts, b and b−1, each data burst including v pilot tones N v tones apart, wherein N is the total number of tones in a data burst; performing a complex conjugate multiply operation between the tones in data burst b and the respective tones in data burst b−1 until the complex conjugate multiply operation has been performed for all of the tones to generate a correlation between the two consecutive data bursts; summing the correlation values to form a total sum P s [l,b] comprising N v sums; averaging the total sum P s [l,b] among 3 ⁢ N v values associated with three consecutive data bursts to generate an average summation P a [l,n] for 0≦n≦2; determining a maximum value for the summation P a [l,n], a corresponding index l max , and a corresponding burst number n max ; and estimating an integer frequency error offset corresponding to the maximum value for the summation P a [l,n], the corresponding index l max , and the corresponding burst number n max .