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Blind modulation detection

  • US 8,331,498 B2
  • Filed: 04/13/2009
  • Issued: 12/11/2012
  • Est. Priority Date: 04/13/2009
  • Status: Active Grant
First Claim
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1. A method of blind modulation detection for demodulating and decoding a plurality of data bursts, each data burst in the plurality modulated with the same modulation technique selected from a set of known modulation techniques, by a receiver in a wireless communication network, comprising:

  • for each data burst in the plurality,saving each data burst to memory;

    independently formulating a preliminary decision as to which modulation technique was applied to each data burst; and

    demodulating each data burst using the preliminary modulation decision;

    formulating a global decision as to modulation technique based on an analysis of all data bursts in the plurality;

    for each data burst for which the preliminary decision differs from the global decision,retrieving the original data burst that was erroneously decoded, from memory; and

    demodulating the retrieved data burst using the global modulation decision;

    assembling the demodulated data bursts; and

    decoding the assembled data bursts.

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