A combined SAIC receiver and a multiple-antenna, receive diversity
receiver are employed to reduce interference in a wireless system. The
real and imaginary parts of the de-rotated signal for each receive path
associated with an antenna are separately filtered and a combined output
signal of all receive paths is generated. The weighting coefficients are
adjusted based on an error signal produced by comparing the combined
output signal with a reference signal. The weighting coefficients are
initially set based on an MMSE/LS type of signal processing criteria,
where the reference signal is the Training Sequence Code (TSC).
Subsequent adjustment/tracking can be accomplished by using known
tracking algorithms, e.g. LMS or RLS, or the coefficients can be
re-computed using MMSE/LS processing. The reference signal for tracking
may be a combination of the TSC and estimated data symbols provided by an
equalizer.