Method of mobile vehicle location determination

• US 20040203850A1
• Filed: 04/04/2002
• Published: 10/14/2004
• Est. Priority Date: 04/04/2002
• Status: Abandoned Application

• Current Assignee: General Motors Corporation (Motors Liquidation Co. GUC Trust)
• Original Assignee: General Motors Corporation (Motors Liquidation Co. GUC Trust)
• Inventors: Oesterling, Christopher L.
• Application Number:
  US10/115,782
• Publication Number:
  US 20040203850A1
• Time in Patent Office: Days
• US Class Current: 455/456.1
• CPC Class Codes: G01C 21/28 with correlation of data from several navigational instruments
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

The invention provides a method of determining the location of a mobile vehicle. A plurality of GPS signals in the mobile vehicle is received. Broadcast signals are monitored from a satellite radio system for at least one GPS correction signal. The GPS correction signal is extracted. A corrected mobile vehicle location is determined based on the GPS signals and the GPS correction signal.

Claims

1. A method of determining a location of a mobile vehicle, comprising:

receiving a plurality of GPS signals in the mobile vehicle;

monitoring broadcast signals from a satellite radio system for at least one GPS correction signal;

extracting the GPS correction signal; and

determining a corrected mobile vehicle location based on the GPS signals and the GPS correction signal.

2. The method of claim 1 wherein the GPS correction signal is broadcast from one of a satellite radio geostationary satellite or a satellite radio terrestrial transmitter.

3. The method of claim 1 wherein determining the corrected mobile vehicle location comprises correcting the GPS signals based on the GPS correction signal and triangulating a vehicle position based on the corrected GPS signals.

4. The method of claim 1 wherein the GPS signals are received from at least three GPS satellites.

5. The method of claim 1 further comprising:

uplinking GPS correction data from a satellite radio uplink facility to a satellite radio geostationary satellite.

6. The method of claim 1 further comprising:

sending GPS correction data from a satellite radio uplink facility to a terrestrial radio transmitter.

7. A computer usable medium including a program for determining a location of a mobile vehicle comprising:

computer program code to receive a plurality of GPS signals in the mobile vehicle;

computer program code to monitor broadcast signals from a satellite radio system for at least one GPS correction signal;

computer program code to extract the GPS correction signal; and

computer program code to determine a corrected mobile vehicle location based on the GPS signals and the GPS correction signal.

8. The computer usable medium of claim 7 further comprising:

computer program code to uplink GPS correction data from a satellite radio uplink facility to a satellite radio geostationary satellite.

9. The computer usable medium of claim 7 further comprising:

computer program code to send GPS correction data from a satellite radio uplink facility to a terrestrial radio transmitter.

10. A system for determining a location of a mobile vehicle, comprising:

means for receiving a plurality of GPS signals in the mobile vehicle;

means for monitoring broadcast signals from a satellite radio system for at least one GPS correction signal;

means for extracting the GPS correction signal; and

means for determining a corrected mobile vehicle location based on the GPS signals and the GPS correction signal.

11. The system of claim 10 further comprising:

means for uplinking GPS correction data from a satellite radio uplink facility to a satellite radio geostationary satellite.

12. The system of claim 10 further comprising:

means for sending GPS correction data from a satellite radio uplink facility to a terrestrial radio transmitter.