Wireless local area network system using space-time block coding (STBC) having backward compatibility with prior standards
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United States of America Patent
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Feb 9, 2010
Grant Date -
Dec 22, 2005
app pub date -
Nov 24, 2004
filing date -
Jun 18, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A method of communicating data to a receiving antenna from N transmitting antennas, where N is an integer, includes the steps of determining whether a legacy transmission mode has been selected, producing N data streams from outbound data, and applying the N data streams to a space/time encoder to produce N encoded signals. When the legacy transmission mode has not been selected, the N encoded signals are transmitting from N transmitting antennas and when the legacy transmission mode has been selected, the one encoded signal is transmitted from one of the N transmitting antennas. The legacy transmission mode allows receivers to receive and process transmitted signals when the receivers are only configured to receive the transmitted signals from a single transmitting antenna.
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