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Method of timing calibration

  • US 7,142,878 B1
  • Filed: 11/12/1999
  • Issued: 11/28/2006
  • Est. Priority Date: 11/12/1999
  • Status: Expired due to Fees
First Claim
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1. A method of time calibration comprising the steps of:

  • determining a calibration time using system timing information and embedded satellite timing information;

    transmitting to a base station the calibration time and a reference frame identifier, wherein the reference frame identifier specifies a frame boundary of a reference system pulse corresponding to the system timing information used in the determination of the calibration time; and

    either receiving aiding information associated with at least one satellite signal and holding information for indicating when the aiding information expires;

    or transmitting a time for indicating a time duration wherein an estimated frequency or code phase search range is valid.

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