Patent ID: 7079824
Filing Date: 2006-07-18
Classification: H04L

Abstract:
1. A method of decoding a received spread OFDM wireless communication signal comprising: performing an equalizing and decision function on the received spread OFDM signal (y), splitting the equalized and decided spread OFDM signal block (ŝ) into a number 2 where i is positive integer; characterised by: for each of said portions (ŝ derived from the other portions (ŝ 2 to ŝ 4 . . . ) of the equalized and decided signal block from the received signal block (y) to produce a respective difference signal, where M=H·W, H is an N×N diagonal matrix related to the complex frequency channel attenuations and W is an N×N unitary spreading matrix; and performing an equalising and decision function on the respective difference signal to produce a further processed equalized and decided portion ({circumflex over (ŝ)} the steps of producing the respective difference signal and performing the equalising and decision function to produce the further processed equalized and decided portion being repeated for each of the other portions (ŝ