Aiding in a satellite positioning system

  • US 7,236,883 B2
  • Filed: 12/04/2003
  • Issued: 06/26/2007
  • Est. Priority Date: 08/14/2000
  • Status: Expired due to Term
First Claim
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1. An aided Global Positioning System (GPS) subsystem within a wireless device, wherein the wireless device has a wireless processing section having a wireless processing section clock, the wireless processing section capable of receiving signals from a wireless network including a network clock signal and capable of generating a first offset indicative of the difference between the network clock and the wireless processing section clock, and the GPS subsystem has a radio frequency (RF) front-end capable of receiving a GPS satellite signal, the aided GPS subsystem comprising:

  • a GPS clock; and

    a GPS processor section that receives the GPS clock and at least one signal from the wireless processing section including the first offset, and in response produces at least one acquiring signal that is utilized by an acquiring unit to acquire the GPS satellite signal.

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