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Method and apparatus for managing time in a satellite positioning system

  • US 7,626,539 B2
  • Filed: 11/16/2007
  • Issued: 12/01/2009
  • Est. Priority Date: 11/07/2003
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • obtaining, at a given global-navigation-satellite-system receiver while being served by a first node of a wireless network, a first time base, wherein the first time base is associated with the first node;

    obtaining, at the given global-navigation-satellite-system receiver while being served by the first node, a relative-time difference, wherein the relative-time difference comprises a difference between the first time base and a second time base associated with a second node of the wireless network;

    obtaining at the given global-navigation-satellite-system receiver a third time base, wherein the third time base is associated with a constellation of satellites; and

    forming a time relation as a function of the first time base, the relative-time difference and the third time base.

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