×

RE-ACQUISITION OF SYMBOL INDEX IN THE PRESENCE OF SLEEP TIMER ERRORS FOR MEDIAFLO SYSTEMS

  • US 20090252238A1
  • Filed: 04/04/2008
  • Published: 10/08/2009
  • Est. Priority Date: 04/04/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method for re-acquiring a symbol index in a presence of sleep timer errors in a MediaFLO™

  • (Forward Link Only) mobile multimedia multicast system, said method comprising;

    receiving a digital signal comprising a superframe comprising a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a receiver that is in a sleep mode of operation, wherein said receiver comprises a timer;

    waking up said receiver from said sleep mode of operation by an amount of time equal to a maximum error introduced by said timer plus a time to reacquire a beginning of each OFDM symbol plus a time to reacquire a symbol index; and

    reacquiring said symbol index.

View all claims
  • 23 Assignments
Timeline View
Assignment View
    ×
    ×