WIRELESS COMMUNICATIONS DEVICE PERFORMING BLOCK EQUALIZATION BASED UPON PRIOR, CURRENT AND/OR FUTURE AUTOCORRELATION MATRIX ESTIMATES AND RELATED METHODS

摘要

A wireless communications device (20) may include a wireless receiver (21) for receiving signals (30) comprising alternating known and unknown symbol portions (31, 32) , and a demodulator (23) connected thereto. The demodulator (23) may include: a channel estimation module (24) for generating respective channel estimates (33) for a prior unknown symbol portion (s) (32), current unknown symbol portion and for future unknown symbol portion (s) ; an autocorrelation module (25) for generating autocorrelation matrices for the prior, current and future unknown symbol portions; a channel match filter module (26) for generating respective channel matching coefficients for the prior and current /future unknown symbol portions; a factorization module (27) for dividing the autocorrelation matrices into respective upper and lower autocorrelation matrices; a transformation module (28) for transforming the channel matching coefficients into upper and lower channel matching coefficients; and a back-substitution module (29) for determining the current unknown symbol portion based upon the upper and lower autocorrelation matrices and channel matching coefficients for the current and prior/future unknown symbol portions .