Method and system for transmitting and receiving signals transmitted from an antenna array with transmit diversity techniques
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United States of America Patent
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Nov 13, 2001
Grant Date -
N/A
app pub date -
Feb 22, 1999
filing date -
Feb 22, 1999
priority date (Note) -
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Abstract
In a method for wireless data communication between a base station and a subscriber unit in a wireless communication system, groups of symbols of an input data stream are commutated to produce a plurality of commutated data streams. The plurality of commutated data streams are then transformed to produce a plurality of transformed data streams. Next, each transformed data stream is spread with a selected one of a plurality of spreading codes to produce a plurality of antenna signals. Finally, each of the plurality of antenna signals is transmitted using a selected one of a plurality of spaced apart antennas, wherein the plurality of spaced apart antennas are spaced apart to provide transmit diversity. In one embodiment, the transform is a space-time transform.
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