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Apparatus and method for timing synchronization in a communication system

  • US 20100195565A1
  • Filed: 02/01/2010
  • Published: 08/05/2010
  • Est. Priority Date: 02/02/2009
  • Status: Active Grant
First Claim
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1. A method for restoring a clock of a second node in a communication system with a symmetric network construction of a first node capable of receiving a Global Positioning System (GPS) signal, the second node not capable of receiving the GPS signal, the method comprising:

  • identifying synchronization information received from the first node;

    determining a delay with the first node;

    generating the clock using the synchronization information and the delay;

    removing a clock phase that is out of a reference range in a phase identification interval;

    dividing the phase identification interval into at least two subdivision intervals; and

    removing a clock phase value that is out of a predetermined normal operation range of a phase in each subdivision interval.

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