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Wireless communications systems and methods for multiple processor based multiple user detection

  • US 7,110,440 B2
  • Filed: 03/14/2002
  • Issued: 09/19/2006
  • Est. Priority Date: 03/14/2001
  • Status: Expired due to Term
First Claim
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1. A communications device for detecting user transmitted symbols encoded in spread spectrum user waveforms comprisinga first processing element which generates a gamma matrix representing a correlation between a code associated with one user and those associated with one or more other users, the gamma matrix representing the correlation between user codes as a composition of a complex conjugate of a code sequence associated with one user and a complex conjugate of a code sequence associated with one or more other users;

  • a set of one or more second processing elements coupled with the first processing element, the set of processing elements generating an R-matrix representing cross-correlations among user waveforms, anda third processing element coupled with the set of processing elements, wherein the third processing element generates symbol estimates based on a composition of the R-matrix.

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