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System and method for DIDO precoding interpolation in multicarrier systems

  • US 20100316163A1
  • Filed: 06/16/2010
  • Published: 12/16/2010
  • Est. Priority Date: 04/02/2004
  • Status: Active Grant
First Claim
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1. A machine-implemented method for performing precoding interpolation in a DIDO system which employs orthogonal frequency-division multiplexing (OFDM) and DIDO precoding to communicate with a plurality of distributed-input-distributed-output (DIDO) clients comprising:

  • selecting a first subset of ODFM tones to determine a first subset of precoding weights;

    deriving a second subset of precoding weights for a second subset of ODFM tones by interpolating between the first subset of precoding weights; and

    using a combination of the first subset of precoding weights and the second subset of precoding weights to precode a data stream prior to transmitting the data stream to a DIDO client.

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