US 12,476,672 B2
Satellite communication system transmitting navigation signals using a wide beam and data signals using a directive beam
Tyghe Robert Speidel, Washington, DC (US)
Assigned to Lynk Global, Inc., Falls Church, VA (US)
Filed by Lynk Global, Inc., Falls Church, VA (US)
Filed on Dec. 18, 2023, as Appl. No. 18/543,891.
Application 18/543,891 is a continuation of application No. 17/570,329, filed on Jan. 6, 2022, granted, now 11,863,250.
Claims priority of provisional application 63/134,213, filed on Jan. 6, 2021.
Prior Publication US 2024/0291522 A1, Aug. 29, 2024
Int. Cl. H04B 7/0408 (2017.01); H01Q 1/28 (2006.01); H01Q 5/28 (2015.01); H01Q 21/06 (2006.01); H01Q 25/00 (2006.01); H04B 7/0426 (2017.01)
CPC H04B 7/0408 (2013.01) [H01Q 1/288 (2013.01); H01Q 5/28 (2015.01); H01Q 21/065 (2013.01); H01Q 25/002 (2013.01); H04B 7/043 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, operable on a user terminal in a terrestrial environment, for determining a geolocation of the user terminal, the method comprising:
obtaining communication measurements relating to communications between the user terminal and a first satellite;
determining, from the communication measurements, a range contour curve;
determining, from the communication measurements, a Doppler shift contour curve;
computing a set of intersections representing one or more intersection of the range contour curve and the Doppler shift contour curve;
determining a signal strength of a signal received at the user terminal from the first satellite;
selecting an intersection, from among the set of intersections, based on the signal strength; and
converting a location of the intersection that is selected into a determined location determined as the geolocation of the user terminal.