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Forward link transmission mode for CDMA cellular communications system using steerable and distributed antennas

  • US 5,953,325 A
  • Filed: 01/02/1997
  • Issued: 09/14/1999
  • Est. Priority Date: 01/02/1997
  • Status: Expired due to Term
First Claim
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1. A cellular communications system comprising:

  • a mobile station;

    a broadcast antenna system;

    a first forward link transmission mode unit, coupled to said broadcast antenna system, for broadcasting a pilot channel used as a reference for channel estimating by said mobile station to enable decoding of a dedicated traffic channel by said mobile station;

    a narrow lobe antenna system;

    a second forward link transmission mode unit, coupled to said narrow lobe antenna system, for broadcasting information used by the mobile station for decoding the dedicated traffic channel without depending on the pilot channel; and

    a transmission mode controller for selectively coupling data broadcasted within the dedicated traffic channel to one of said first forward link transmission mode unit and said second forward link transmission mode unit.

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