Interference mitigation method for single or MIMO receiver devices
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United States of America Patent
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Jun 24, 2014
Grant Date -
May 9, 2013
app pub date -
Nov 2, 2012
filing date -
Nov 8, 2011
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Abstract
A cognitive radio signal processing method suitable for single receiver devices where interference is mitigated using projection of received multi-dimensional signal space to maximize SNR by orthogonalizing interference is described. The method is based on a well-known LMS solution that is computed from received multi antenna and multicarrier signals in a novel way. This method solves the requirement of multiple RF chains in low cost handsets by introducing a protocol synchronous antenna switcher that allows, for example, a LTE handset with a single antenna to benefit from algorithms that typically require multiple receivers for the same frequency, i.e. MIMO.
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