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Iterative interference suppressor for wireless multiple-access systems with multiple receive antennas

  • US 9,425,855 B2
  • Filed: 10/26/2015
  • Issued: 08/23/2016
  • Est. Priority Date: 04/07/2005
  • Status: Active Grant
First Claim
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1. A wireless terminal, comprising:

  • a plurality of antennas configured to receive multiple-access communication signals from a plurality of transmission sources;

    a plurality of RAKE receivers configured to separate the multiple-access communication signals into a plurality of constituent signals for each transmission source;

    a plurality of constituent-signal analyzers configured to generate a plurality of initial symbol estimates from the plurality of constituent signals; and

    one or more interference suppression units configured to generate, from the plurality of initial symbol estimates, a synthesized received signal for each antenna of the plurality of antenna, subtract the respective synthesized received signal from the multiple-access communication signal received by each antenna to obtain a plurality of residual signals for the plurality of antenna, combine the plurality of residual signals with the plurality of constituent signals to obtain interference-suppressed constituent signals, and generate a plurality of updated symbol estimates based on the interference-suppressed constituent signals.

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