Method and system for antenna interference cancellation
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United States of America Patent
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Oct 17, 2006
Grant Date -
Oct 13, 2005
app pub date -
Nov 17, 2004
filing date -
Nov 17, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wireless communication system can comprise two or more antennas that interfere with one another via free space coupling, surface wave crosstalk, dielectric leakage, or other interference effect. The interference effect can produce an interference signal on one of the antennas. A cancellation device can suppress antenna interference by generating an estimate of the interference signal and subtracting the estimate from the interference signal. The cancellation device can generate the estimate based on sampling signals on an antenna that generates the interference or on an antenna that receives the interference. The cancellation device can comprise a model of the crosstalk effect. Transmitting test signals on the communication system can define or refine the model.
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