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Land-based wireless communications system having a scanned directional antenna

  • US 5,701,583 A
  • Filed: 05/25/1995
  • Issued: 12/23/1997
  • Est. Priority Date: 11/17/1992
  • Status: Expired due to Term
First Claim
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1. A radio communications system comprising:

  • a plurality of base stations for transmitting and receiving signals to and from one or more remote stations, said one or more remote stations being within a near line-of-sight of at least one of said plurality of base stations, each of said plurality of base stations comprising at least one receive antenna coupled to a base station receiver, said at least one receive antenna having a directional pattern in a horizontal plane and means for steering said directional pattern to sequentially scan from one azimuthal position to another azimuthal position;

    means for filtering a signal received at said at least one receive antenna;

    means for processing said received signal after filtering by said filtering means;

    means for detecting a signal strength of said received signal; and

    means for controlling said steering means, said controlling means comprising means for instructing said steering means to stop, and without further scanning, instructing said at least one receive antenna to receive said received signal at an azimuthal position where said detecting means detects said signal strength of said received signal to be is above a predetermined threshold value.

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