Method and apparatus for scheduling search for and acquisition of global positioning satellites

Method and apparatus for scheduling search for and acquisition of global positioning satellites

  • CN 1,726,404 B
  • Filed: 12/11/2003
  • Issued: 07/18/2012
  • Est. Priority Date: 12/11/2002
  • Status: Active Grant
First Claim
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1. an operate wireless remote unit is to be used to the carrying out method that SPS intercepts and captures, and said wireless remote unit comprises a receiver and an internal clocking, and said method comprises following steps:

  • In a very first time, said receiver receives a data-signal from a data basestation;

    Second time after the said very first time, with said receiver be tuned to once the pilot signal with a navigation frequency of voice base transmission;

    In response to said with said receiver be tuned to the step of said pilot signal, said receiver receives said pilot signal from said voice base;

    In response to the step of the said pilot signal of said reception, make that said internal clocking and said pilot signal are synchronous;

    The 3rd time after said second time, with said receiver be tuned to once one in a global position system satellite transmits have one be different from the satellite-signal of satellite frequency of fast navigation frequency;

    WithIn response to said with said receiver be tuned to the step of said satellite-signal, said satellite-signal is carried out a search.

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