Broadband access to mobile platforms using drone/UAV background
Systems and methods for providing broadband internet access to mobile platforms such as vehicles, aircraft, and portable devices, using a network of one or more entities such as drones/unmanned aerial vehicles (UAVs). In one embodiment, the drone communication system comprises an antenna sub-system, a radio sub-system and a data switching sub-system. The mobile platforms comprise antenna and radio sub-systems to communicate with the drones, detect changes in the mobile platforms azimuth and elevation changes, and adjust the mobile platform's antenna beam to compensate for the orientation changes to optimally point toward the drones. The exemplary mobile platform further comprises methods to detect the need for handoff to a different drone and to carry out the handoff.
1. A method of receiving broadband access at a mobile platform via a network of drones, comprising:
determining a location of a drone of a communications drone network based at least in part on a list of drone locations that includes a list of line of sight (LOS) values, wherein each drone location of the list of drone locations comprises a corresponding LOS value;
wherein the corresponding LOS value for each of the drone locations comprises a predetermined value that indicates signal strength for an unobstructed LOS between the drone and the mobile platform;
steering an antenna aperture toward the location of the drone;
determining whether a visibility of the drone is obstructed via the antenna aperture by measuring a signal strength and comparing the measured signal strength to the corresponding LOS value;
when the visibility of the drone is not obstructed:
searching for an optimal beam position within the antenna aperture along a first range of elevation and a second range of azimuth; and
electronically forming an antenna beam at the optimal beam position, the electrically formed beam comprising an uplink data stream and a downlink data stream; and
otherwise searching for a different drone on the list of drone locations.
2. The method of claim 1 , further comprising:
determining an orientation of the mobile platform; and
where the steering comprises mechanical steering that is based at least in part on the orientation of the mobile platform.
3. The method of claim 1 , where the mobile platform comprises multiple antenna apertures, and the method further comprises selecting the antenna aperture based at least in part on the location of the drone.
4. The method of claim 1 , where the list of drone locations is received via a control channel broadcast.
5. The method of claim 1 , where the list of drone locations is retrieved from memory.
6. The method of claim 1 , further comprising provisioning a wireless local area network for a plurality of users, where uplink data generated by the plurality of users is sent via the uplink data stream and where the downlink data received by the downlink data stream is routed to various ones of the plurality of users.
7. A mobile platform configured to provide broadband access to at least one user, comprising:
one or more sensors configured to detect one or more mobile platform orientation changes;
logic configured to store a list of drone locations that comprises a list of line of sight (LOS) values, wherein each drone location of the list of drone locations comprises a corresponding LOS value;
wherein the corresponding LOS value for each of the drone locations comprises a predetermined value that indicates signal strength for an unobstructed LOS between a drone and the mobile platform;
an antenna sub-system configured to:
dynamically point beams toward a specific one of a network of drone apparatus, and measure a signal strength of the specific one of the network of drone apparatus;
when the signal strength substantially matches the corresponding LOS value, adjust the beams in response to the mobile platform orientation changes; and
when the signal strength does not match the corresponding LOS value, point the beams toward a different one of the network of drone apparatus; and
a radio sub-system configured to demodulate and decode received data.
8. The mobile platform of claim 7 , further comprising a local area network sub-system configured to route the received data among a plurality of users based at least in part on addressing information.
9. The mobile platform of claim 7 , where:
the antenna sub-system points the beam via a mechanical steering mechanism.
10. The mobile platform of claim 7 , where the antenna sub-system comprises multiple antenna apertures; and
The antenna sub-system is configured to select an antenna aperture based at least in part on a drone location of the specific one of the network of drone apparatus.
11. The mobile platform of claim 7 , where the list of drone locations is received via a control channel broadcast.
12. The mobile platform of claim 7 , where the list of drone locations is retrieved from a memory.
13. A mobile platform configured to provide broadband access to at least one user, comprising:
one or more sensors configured to detect one or more mobile platform orientation changes;
logic configured to store a list of drone locations that comprises a list of line of sight (LOS) values, wherein each drone location of the list of drone locations comprises a corresponding LOS value;
wherein the corresponding LOS value for each of the drone locations comprises a predetermined value that indicates signal strength for an unobstructed LOS between a drone and the mobile platform;
an antenna sub-system configured to:
steer an antenna aperture toward a location of the drone;
measure a signal strength of the drone;
comparing the measured signal strength to the corresponding LOS value to determine whether a visibility of the drone is obstructed; and
when the visibility of the drone is not obstructed:
search for an optimal beam position within the antenna aperture along a first range of elevation and a second range of azimuth; and
electronically form an antenna beam at the optimal beam position, the electrically formed beam comprising an uplink data stream and a downlink data stream; and
otherwise search for a different drone on the list of drone locations.
14. The mobile platform of claim 13 , wherein the list of drone locations that include the list of LOS values is retrieved from memory.
15. The mobile platform of claim 13 , wherein the list of drone locations that include the list of LOS values is received from another drone.
16. The mobile platform of claim 13 , wherein the list of drone locations that include the list of LOS values is received from a broadcast channel.
17. The mobile platform of claim 13 , wherein the list of drone locations that include the list of LOS values is received from an out-of-band channel.
18. The mobile platform of claim 13 , wherein the antenna sub-system is configured to use the list of drone locations when a first network coverage is lost.
19. The mobile platform of claim 13 , wherein the list of drone locations further comprises trajectory information.
20. The mobile platform of claim 13 , wherein the list of drone locations further comprises trajectory information, traffic information, capabilities information historic performance information, or synchronization assistance information.
21. The mobile platform of claim 13 , wherein the list of drone locations is sorted according to the list of LOS values.