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Method and apparatus for canceling pilot interference in a wireless communication system

  • US 7,190,749 B2
  • Filed: 10/10/2001
  • Issued: 03/13/2007
  • Est. Priority Date: 06/06/2001
  • Status: Active Grant
First Claim
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1. A method for canceling pilot interference at a receiver unit in a wireless communication system, comprising:

  • receiving a signal comprised of a plurality of signal instances, wherein each signal instance includes a pilot and data;

    estimating pilot interference due to each of the plurality of signal instances;

    accumulating estimated pilot interference due to the plurality of signal instances in a buffer to provide a total pilot interference;

    subtracting the total pilot interference from the received signal to derive a pilot-canceled signal; and

    processing the pilot-canceled signal to derive data for each signal instance in the received signal,wherein the pilot interference due to each of the one or more signal instances is estimated byprocessing the signal instance to derive an estimate of a channel response of the signal instance; and

    multiplying pilot data for the signal instance with the estimated channel response to provide the estimated pilot interference.

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