Method and apparatus for transfer of signals from multiple antennas down
to baseband over a common radio frequency (RF) chain. Antenna selection
having greater flexibility and applicability to both uplink and downlink
is obtained by giving priority to the antenna receiving a better/best
quality signal. Measurements are taken by at least a channel estimator
during each time slot to determine the weighting to be given to the
antenna with the better/best quality signal. Techniques and apparatus are
provided to take measurements over a range of intervals from time slots
to single symbols, for example, to select the best signal. The techniques
described herein may be used individually, and in some cases are combined
to receive additional benefits in efficiency. For example, one or more of
recent and/or current channel estimation, history, optimization may be
employed, in addition to channel estimation, to determine signal quality.