Method and apparatus for tracking a global navigation satellite system within the constraints of an indoor facility
First Claim
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1. A method for tracking a global navigation satellite system (GNSS) within the constraints of an indoor facility, comprising the steps of:
- receiving assistance information on the GNSS and additional assistance information including facility information on a mobile communication system;
sorting orbiting satellites within the GNSS by elevation angles; and
correlating lower elevation satellites within the GNSS using azimuth masking based on the additional assistance information prior to correlating higher elevation satellites.
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Abstract
A method and chipset for tracking a global navigation satellite system (GNSS) within the constraints of an indoor facility. The method includes receiving assistance information on the GNSS on a mobile communication system; and sorting orbiting satellites within the GNSS by elevation angles. Additionally, lower elevation satellites are correlated within the GNSS prior to correlating higher elevation satellites.
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Citations
13 Claims
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1. A method for tracking a global navigation satellite system (GNSS) within the constraints of an indoor facility, comprising the steps of:
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receiving assistance information on the GNSS and additional assistance information including facility information on a mobile communication system; sorting orbiting satellites within the GNSS by elevation angles; and correlating lower elevation satellites within the GNSS using azimuth masking based on the additional assistance information prior to correlating higher elevation satellites. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A chipset within a mobile communication system, comprising,
an RF receiver comprising an antenna for receiving satellite ranging signals; -
a controller for converting the satellite ranging signals into latitude and longitude information; wherein the controller also receives assistance information about a global navigation satellite system (GNSS) and additional assistance information including facility information on the mobile communication system; sorts orbiting satellites within the GNSS by elevation angles; and correlates lower elevation satellites within the GNSS using azimuth masking based on the additional assistance information prior to correlating higher elevation satellites. - View Dependent Claims (10, 11, 12, 13)
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Specification