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Methods and systems for diversity combining of synchronization statistics in OFDM systems

  • US 8,031,789 B2
  • Filed: 04/07/2008
  • Issued: 10/04/2011
  • Est. Priority Date: 04/06/2007
  • Status: Active Grant
First Claim
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1. A method of diversity combining of synchronization statistics comprising:

  • determining a plurality of diversity observations in a diversity system by calculating a plurality of differential phase metrics at a plurality of pilot tones, the differential phase metric calculated by;

    receiving a first OFDM signal at a pilot tone;

    receiving a second OFDM signal sent in the same frequency band; and

    determining a differential phase metric between the first OFDM signal and the second OFDM signal;

    collecting diversity observations on the same pilot tones during a number of uncorrelated frequency hops; and

    combining the diversity observations.

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