Carrier detection for a wireless local area network

  • US 5,131,006 A
  • Filed: 12/24/1990
  • Issued: 07/14/1992
  • Est. Priority Date: 09/06/1990
  • Status: Expired due to Term
First Claim
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1. A local area network station for receiving data symbols encoded in a spread spectrum code and transmitted over a wireless channel, comprising:

  • an analog-to-digital conversion means to provide a digital representation of a received signal;

    correlator means coupled to said analog-to-digital conversion means to provide a plurality of signal samples;

    integrator and storage means including a plurality of storage registers to store values of integrated representations of said plurality of signal samples;

    peak determining means to determine the maximum value stored in said plurality of storage registers;

    total value determining means to determine the total value of the values stored in said plurality of storage registers;

    spike quality determining means to provide a quality value signal representative of the quality of said received signal, with said quality being dependent upon said maximum value and said total value; and

    carrier detection means responsive to said quality value signal to provide a carrier detect signal.

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