US 11,914,049 B2
Methods and apparatus for improving carrier phase detection in satellite positioning system signals
Rayman Wai Pon, Cupertino, CA (US); Jordan Cookman, San Jose, CA (US); and Gengsheng Zhang, Cupertino, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Feb. 4, 2021, as Appl. No. 17/167,952.
Prior Publication US 2022/0244402 A1, Aug. 4, 2022
Int. Cl. G01S 19/25 (2010.01); H04B 1/3827 (2015.01)
CPC G01S 19/256 (2013.01) [H04B 1/3827 (2013.01)] 27 Claims
OG exemplary drawing
 
14. A mobile device configured to support satellite positioning system (SPS) operation, the mobile device comprising:
a satellite positioning system (SPS) receiver configured to receive SPS signals over a plurality of frequency bands;
a processor coupled to the SPS receiver and configured to:
receive a first positioning signal from a satellite vehicle (SV);
receive a second positioning signal from the same SV as the first positioning signal;
measure a first carrier phase (CP) measurement of the first positioning signal at a first time and a second CP measurement of the first positioning signal at a second time;
perform a third CP measurement of the second positioning signal at a third time and a fourth CP measurement of the second positioning signal at a fourth time; and
estimate a corrected second CP measurement of the first positioning signal by selecting an integer value of the corrected second CP measurement using a difference between the third CP measurement and the fourth CP measurement of the second positioning signal and selecting a fractional value of the second CP measurement to be a fractional value of the corrected second CP measurement.