Patent ID: 7561644
Filing Date: 2009-07-14
Classification: H04B

Abstract:
1. A method of handling wireless communication signals received by a wireless communication device, the method comprising: sampling a wireless communication signal received via a wireless communication antenna to generate a plurality of samples per symbol; determining a covariance matrix corresponding to a sampled symbol, wherein the covariance matrix includes a first plurality of correlations between estimated noise relating to samples of the symbol, a second plurality of correlations between the estimated noise relating to the samples of the symbol and estimated noise relating to samples of a predefined number of previous symbols received via the antenna, and a third plurality of correlations between estimated noise relating to the samples of the previous symbols; and applying to the samples of the symbol a whitening transformation, which is based on the covariance matrix, to reduce both a temporal correlation between the sampled symbol and samples of the previous symbols, and a spatial correlation between the samples of the symbol.