17931399. CROSS-FREQUENCY CORRECTION FOR PRECISE POSITIONING simplified abstract (QUALCOMM Incorporated)

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CROSS-FREQUENCY CORRECTION FOR PRECISE POSITIONING

Organization Name

QUALCOMM Incorporated

Inventor(s)

Min Wang of Tustin CA (US)

CROSS-FREQUENCY CORRECTION FOR PRECISE POSITIONING - A simplified explanation of the abstract

This abstract first appeared for US patent application 17931399 titled 'CROSS-FREQUENCY CORRECTION FOR PRECISE POSITIONING

Simplified Explanation

The abstract describes a method for determining the position of a mobile device using correction data associated with pseudorange measurements of GNSS signals sent from satellite vehicles on different carrier frequencies.

  • Receiving correction data for pseudorange measurements of GNSS signals from satellite vehicles.
  • Measuring a third GNSS signal on a third carrier frequency to generate a third pseudorange measurement.
  • Determining the position of the mobile device using the third pseudorange measurement and correction data from the first and second pseudorange measurements.

Potential Applications

This technology can be applied in various industries such as navigation, surveying, mapping, and location-based services.

Problems Solved

This technology helps improve the accuracy and reliability of determining the position of a mobile device in challenging environments with signal interference or multipath effects.

Benefits

The benefits of this technology include enhanced positioning accuracy, improved performance in urban canyons or dense foliage areas, and better overall user experience with location-based services.

Potential Commercial Applications

Potential commercial applications of this technology include GPS navigation systems, precision agriculture, asset tracking, and geospatial data collection services.

Possible Prior Art

One possible prior art for this technology could be the use of differential GPS (DGPS) techniques for improving the accuracy of position determination in GNSS systems.

What are the specific GNSS carrier frequencies used in this method?

The abstract mentions the use of first, second, and third GNSS carrier frequencies, but does not specify the exact frequencies utilized in the method.

How does the method handle potential errors in the correction data received for the pseudorange measurements?

The abstract does not provide details on how the method addresses or mitigates errors in the correction data associated with the pseudorange measurements.


Original Abstract Submitted

An example method performed at a mobile device for determining a position may comprise receiving correction data associated with (1) a first pseudorange measurement of a first GNSS signal sent from a satellite vehicle on a first GNSS carrier frequency and (2) a second pseudorange measurement of a second GNSS signal sent from the satellite vehicle on a second GNSS carrier frequency. The method also may comprise measuring a third GNSS signal sent from the satellite vehicle and received at the mobile device on a third GNSS carrier frequency, to generate a third pseudorange measurement. The method also may comprise determining the position of the mobile device using (a) the third pseudorange measurement of the third GNSS signal on the third GNSS carrier frequency and (b) the correction data associated with the first pseudorange measurement and the second pseudorange measurement.