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Method and system providing RF distribution for fixed wireless local loop service

  • US 6,014,546 A
  • Filed: 04/08/1997
  • Issued: 01/11/2000
  • Est. Priority Date: 04/19/1996
  • Status: Expired due to Term
First Claim
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1. A method for receiving a RF signal contained in a RF bandwidth from a wireless local loop base station and transmitting said RF signal over a low bandwidth medium having a transmission bandwidth below said RF bandwidth, said method comprising:

  • a) intercepting said RF signal from said wireless local loop base station;

    b) providing said system with a global reference tone of high stability at a frequency within said transmission bandwidth of said low bandwidth medium;

    c) generating a first RF reference tone of high stability by using a first adjustment signal derived from said global reference tone to control the output of a first local oscillator, such that said first local oscillator generates said first RF reference tone;

    d) mixing said first RF reference tone with said RF signal to produce an IF signal within said transmission bandwidth;

    e) feeding said IF signal through said low bandwidth medium;

    f) generating a second RF reference tone of high stability by using a second adjustment signal derived from said global reference tone to control the output of a second local oscillator, such that said second local oscillator generates said second RF reference tone; and

    g) mixing said second RF reference tone with said IF signal fed through said low bandwidth medium to recover said RF signal.

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