US 12,119,920 B2 · Method and system for controlling satellite communication

Abstract

Disclosed is method for controlling satellite communication of satellite (202) flying on trajectory over the earth (206). The method comprises providing first target location on surface of the earth; determining trajectory of satellite over the earth; identifying first interference restrictive area (214), which satellite trajectory passes; determining elevation angle (δ1, δ2) in respect to satellite and first target location, wherein elevation angle is angle between horizontal plane of the earth and vector pointing from first target location to satellite along trajectory at given moment of time; and activating first communication beam (208) from satellite towards first target location when elevation angle is between activation angle (δ1) and deactivation angle (δ2). Activation angle is less than deactivation angle if first interference restrictive area is located in forward direction in respect to satellite motion along trajectory, and activation angle is more than deactivation angle if first interference restrictive area is located in backward direction in respect to satellite motion along trajectory.

Claims20

Dependent claims

A method for controlling a satellite communication of a satellite flying on a trajectory over the earth, the method comprising

providing a first target location on the surface of the earth;
determining the trajectory of the satellite over the earth;
identifying a first interference restrictive area, which the satellite trajectory passes;
determining an elevation angle in respect to the satellite and the first target location, wherein the elevation angle is an angle between a horizontal plane of the earth and a vector pointing from the first target location to the satellite along the trajectory at given moment of time;
and
activating a first communication beam from the satellite towards the first target location when the elevation angle is between an activation angle and a deactivation angle, wherein
the activation angle is less than the deactivation angle if the first interference restrictive area is located in a forward direction in respect to the satellite motion along the trajectory, and
the deactivation angle is less than activation angle if the first interference restrictive area is located in backward direction in respect to the satellite motion along the trajectory and;
deactivating the first communication beam when the elevation angle is beyond the deactivation angle.

6 more elements

A system for controlling satellite communication flying on a trajectory over the earth, the system comprising a server system configured to;

locate a first target location (210, 214) on the surface of the earth;
determine the trajectory of the satellite over the earth;
identify, from a database of restrictive areas, a first interference restrictive area, which the satellite trajectory passes;
determine an elevation angle in respect to the satellite and the first target location, wherein the elevation angle is an angle between a horizontal plane of the earth and a vector pointing from the first target location to the satellite along the trajectory at given moment of time;
and
activate the first communication beam from the satellite towards the first target location when the elevation angle is between a activation angle and a deactivation angle, wherein
the activation angle is less than the deactivation angle if the first interference restrictive area is located in a forward direction in respect to the satellite motion along the trajectory, and
the deactivation angle is less than the activation angle if the first interference restrictive area is located in backward direction in respect to the satellite motion along the trajectory;
and
communicate values of the activation angle and the deactivation angle to the satellite.

7 more elements

Dependencies are inferred from the claim text.

Method and system for controlling satellite communication

Life of this patent

Method and system for controlling satellite communication

Life of this patent

Abstract

Claims20