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Apparatus and method for synchronization in a multiple-carrier communication system by observing energy within a guard band

  • US 6,389,087 B1
  • Filed: 06/14/2000
  • Issued: 05/14/2002
  • Est. Priority Date: 06/23/1999
  • Status: Expired due to Term
First Claim
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1. A method of determining a loss of synchronization between a receiver and a transmitter, the method comprising:

  • measuring an energy level of a pilot signal within a frequency guard band, the pilot signal transmitted adjacent to the frequency guard band; and

    detecting a loss of synchronization between a transmitter transmitting the pilot signal and a receiver in accordance with the energy level.

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