Diversity technique for wireless communications
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United States of America Patent
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Jan 15, 2013
Grant Date -
Jul 14, 2011
app pub date -
Mar 28, 2011
filing date -
Sep 16, 1997
priority date (Note) -
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Abstract
A simple block coding arrangement is created with symbols transmitted over a plurality of transmit channels, in connection with coding that comprises only simple arithmetic operations, such as negation and conjugation. The diversity created by the transmitter utilizes space diversity and either time or frequency diversity. Space diversity is effected by redundantly transmitting over a plurality of antennas, time diversity is effected by redundantly transmitting at different times, and frequency diversity is effected by redundantly transmitting at different frequencies:
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