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Reducing interference in telecommunications systems

  • US 6,516,199 B1
  • Filed: 12/22/1997
  • Issued: 02/04/2003
  • Est. Priority Date: 12/23/1996
  • Status: Expired due to Term
First Claim
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1. A method of controlling a cellular communications network, comprising at least a first base station and a second base station, each operating on a first frequency, with no other base stations operating on the first frequency located between the first base station and the second base station, the method comprising:

  • dividing transmission from each base station into a plurality of time slots, transmitting to each base station a clock signal, such that the time slots in transmissions from the base stations are transmitted substantially simultaneously allocating a sequence of sync words for transmission from the first base station and allocating the same sequence of sync words for transmission from the second base station, and controlling the transmissions from the first and second base stations such that the first and second base stations transmit different sync words in each time slot.

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