Method for estimating channel statistics in an ofdm receiver

A method of estimating channel statistics, the method comprising:

• providing a table, wherein the table comprises a plurality of entries, wherein each entry corresponds to correlation values for predetermined spread of the angles of arrival of the signal and predetermined speeds at which a receiver of the signal is traveling;
• storing a plurality of pilot symbols from a plurality of received signals;
• establishing a reference for correlation;
• computing instantaneous normalized correlations, wherein computing instantaneous normalized correlations comprises computing instantaneous correlations for each time lag of each of the plurality of pilot symbols relative to the reference;
• computing current refined correlations using previous refined correlations at the corresponding lag values and the instantaneous correlations;
• comparing current refined correlations to the table of correlation values;
• and
• choosing correlation values from the table based on the step of comparing current refined correlations to the table.

A method of estimating channel statistics, the method comprising:

• providing a table comprising non-isotropic scattering temporal correlation values;
• computing current refined correlations using previous refined correlations and instantaneous correlations;
• comparing current refined correlations to the table of correlation values;
• and
• choosing correlation values from the table based on the step of comparing current refined correlations to the table.