Patent ID: 8457222
Filing Date: 2013-06-04
Classification: H04L

Abstract:
1. A method of estimating channel statistics, the method comprising: providing a table stored within a non-transitory computer-readable medium, wherein the table comprises a plurality of entries, wherein each entry corresponds to correlation values for predetermined spread of angles of arrival of a 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 to the non-transitory computer-readable medium; establishing a reference for correlation; computing instantaneous normalized correlations via a processor, wherein said computing instantaneous normalized correlations comprises computing instantaneous normalized correlations for each time lag of each of the plurality of pilot symbols relative to the reference; computing current refined correlations via the processor using previous refined correlations at the corresponding lag values and the instantaneous normalized correlations; comparing current refined correlations to the table of correlation values stored within the non-transitory computer-readable medium; and choosing correlation values from the table based on the step of comparing current refined correlations to the table.