US 12,235,364 B2
Secure global navigation satellite systems
Dominic Gerard Farmer, San Jose, CA (US); and Mangesh Chansarkar, Irvine, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Nov. 10, 2021, as Appl. No. 17/523,768.
Application 17/523,768 is a continuation of application No. 16/994,485, filed on Aug. 14, 2020, granted, now 11,231,503.
Application 16/994,485 is a continuation of application No. 15/787,262, filed on Oct. 18, 2017, granted, now 10,830,895, issued on Nov. 10, 2020.
Prior Publication US 2022/0066045 A1, Mar. 3, 2022
Int. Cl. G01S 19/20 (2010.01); G01S 5/00 (2006.01); G01S 19/07 (2010.01); G01S 19/08 (2010.01); G01S 19/42 (2010.01)
CPC G01S 19/20 (2013.01) [G01S 5/0018 (2013.01); G01S 19/071 (2019.08); G01S 19/072 (2019.08); G01S 19/074 (2019.08); G01S 19/08 (2013.01); G01S 19/42 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method performed by a server for securing a Satellite Positioning System (SPS) for a mobile device, comprising:
receiving from a plurality of mobile devices data collected from a plurality of satellites;
determining assistance data for a geographical region of the mobile device based on the data collected from the plurality of satellites, wherein the assistance data comprises navigation data and impairment status of satellites in the geographical region of the mobile device;
encrypting the assistance data;
sending the encrypted data to the mobile device via a point-to-point communication session between the mobile device and the server; and
receiving encrypted observable metrics of signals from the plurality of satellites from the mobile device for the position determination of the mobile device.