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Wideband digitization systems and methods for cellular radiotelephones

  • US 5,832,389 A
  • Filed: 04/03/1996
  • Issued: 11/03/1998
  • Est. Priority Date: 03/24/1994
  • Status: Expired due to Term
First Claim
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1. A cellular base station for communicating with a mobile station in a cellular communications system over one of a plurality of cellular communications channels, said base station comprising:

  • a plurality of receive antennas for receiving signals from the mobile station over the cellular communications channel wherein each receive antenna is oriented to define a respective receive coverage area;

    a support structure for supporting said plurality of receive antennas so that a first receive antenna defines a first receive coverage area and a second receive antenna defines a second receive coverage area overlapping a portion of said first receive coverage area;

    a first wideband receiver operatively connected to said first receive antenna, wherein said first wideband receiver receives a first plurality of receive cellular communications channels from said first receive coverage area;

    a second wideband receiver operatively connected to said second receive antenna, wherein said second wideband receiver receives a second plurality of receive cellular communications channels from said second receive coverage area and wherein said first and second pluralities of receive channels include the one common receive cellular communications channel from the mobile station;

    first and second channel splitters operatively connected to said respective first and second wideband receivers for separating said first and second pluralities of receive cellular communications channels; and

    a diversity combiner operatively connected to said first and second channel splitters for combining said common receive cellular communications channel from said first and second channel splitters to produce an enhanced quality output receive channel from the mobile station;

    wherein each of said receive cellular communications channel operates on a predetermined cellular frequency and said first and second pluralities of receive cellular communications channels each comprise receive channels operating on consecutive predetermined cellular frequencies.

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