“…The beamformer weights are computed using a least-squares algorithm, i.e., W H X ( k ) L=S t ( k ) (6) where { t ( k ) } is the training sequence of s or s t , as the case may be. For example, slot 1 is beamformed over the interval [6,161] using weights that satisfy w H x ( k ) % t l ( k ) , k E [14,27] (7) where { t l ( k ) } is the training sequence of slot 1, which is known at the receiver (because of the frame synchronization step). Note that slot 1 is further beamformed over the interval [O, 51 also using the weights in (7).…”