Communicating over a desired tone in the presence of interference having an unknown magnitude that is substantially constant
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United States of America Patent
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Aug 18, 2015
Grant Date -
Oct 2, 2014
app pub date -
Jun 13, 2014
filing date -
Aug 13, 2012
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Abstract
Methods and systems are disclosed for transmitting data over a desired frequency tone in the presence of an interference that has an unknown magnitude that is substantially constant. In general, data symbols are transmitted in a null space of the desired frequency tone. The null space of the desired frequency tone is orthogonal to the desired frequency tone. As such, the data symbols transmitted in the null space of the desired frequency tone are not interfered with by the interference at the desired frequency tone regardless of the magnitude of the interference. The data symbols transmitted in the null space of the desired frequency tone can then be recovered by a receiver without estimation of or compensation for the interference at the desired frequency tone.
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