METHOD OF COMBINING SIGNALS FROM MULTIPLE CHANNELS IN A MULTI-ANTENNA RECEIVER AND ITS APPARATUS
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United States of America Patent
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Issued Date -
Aug 21, 2014
app pub date -
Feb 17, 2014
filing date -
Feb 18, 2013
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Abandoned
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Abstract
The present invention relates to the field of MIMO wireless communication. Disclosed are a method for combining signals from multiple channels in a multi-antenna receiver and its apparatus. In the present invention, weight values corresponding to each antenna are calculated based on noise estimates or SNRs obtained from channel estimation, and a weighted combination is performed on each signal after channel equalization, which can effectively reduce impact of noises on signals and improve performances of receivers. Weight values are calculated for each subcarrier of each antenna based on noise estimates or SNRs, and a weighted combination is performed in subsequent step, which can further improve performances of OFDM receivers for a OFDM system.
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