Methods, systems, and devices for wireless communications are described. In a wireless communications system, a base station may transmit an indication of a pre-compensation timing value for transmission of a random access message by an aerial user equipment (UE), the random access message part of a random access procedure between the base station and the aerial UE when the aerial UE is in a connected state. The pre-compensation timing value may be based on a location of the aerial UE. In some examples, the base station may monitor a set of random access resources associated with the pre-compensation timing value and the aerial UE for the random access message, and the aerial UE may transmit the random access message using a first random access resource of a set of random access resources associated with the pre-compensation timing value and the aerial UE.

An agricultural method includes providing a positive air pressure chamber to prevent outside contaminants from entering the chamber; growing crops in a plurality of cells in the chamber, each cell having multi-grow benches or levels, each cell further having connectors to vertical hoists for vertical movements in the chamber; maintaining pre-set temperature, humidity, carbon dioxide, watering and lighting levels to achieve predetermined plant growth; using motorized transport rails to deliver benches for operations including seeding, harvesting, grow media recovery, and bench wash; dispensing seeds in the cell with a mechanical seeder coupled to the transport rails; growing the crops with computer controlled nutrients, light and air level; and harvesting the crops and delivering the harvested crop at a selected outlet of the chamber.

A flying vehicle air traffic control method utilizing wireless networks includes communicating with a plurality of flying vehicles via a plurality of satellites associated with the wireless networks, wherein the plurality of flying vehicle each include hardware and antennas adapted to communicate to the plurality of satellites; maintaining data associated with flight of each of the plurality of flying vehicles based on the communicating; and processing the maintained data to perform a plurality of function associated with air traffic control of the plurality of flying vehicles.

Disclosed is a method of path optimization for an unmanned aerial vehicle (UAV). In the method, users and the positions of the users are obtained; the users are divided into K wireless multicast user groups; K initial hovering positions corresponding to the K wireless multicast user groups are determined; and a first shortest flying path connecting the K initial hovering positions is determined; and the initial hovering positions of the UAV are optimized to obtain K final hovering positions and a final flying path. The present disclosure also discloses a device of path optimization for a UAV and a computer readable storage medium.

An unmanned aerial signal relay includes an unmanned aerial vehicle, including a communication relay unit and at least one antenna, communicatively connected to the communication relay unit; a tether comprising at least two wires and at least one fiber optic cable, the wires and cable communicatively connected to the unmanned aerial vehicle; and a surface support system comprising a spool physically connected to the tether and a ground-based receiver communicatively connected to the at least one fiber optic cable, wherein the unmanned aerial vehicle is powered by electrical energy provided by the at least two wires, and wherein the communication relay unit is configured to relay signals received from the at least one antenna via the fiber optic cable to the ground-based receiver. Various systems and methods related to an unmanned aerial signal relay are also described.

Systems and methods for detecting, monitoring, and mitigating the presence of a drone are provided herein. In one aspect, a system for detecting presence of a one or more drones includes a radio-frequency (RF) receiver configured to receive an RF signal transmitted between a drone and a controller. The system can further include a processor and a computer-readable memory in communication with the processor and having stored thereon computer-executable instructions to cause the at least one processor to receive a set of samples from the RF receiver for a time interval, the set of samples comprising samples of the first RF signal, obtain a parameter model of the first frequency hopping parameters, and fit the parameter model to the set of samples.

A combined vertical takeoff and landing UAV having a large vertical takeoff and landing UAV, a connecting device, and a small vertical takeoff and landing UAV. The connecting device having a clamping component and an adsorption component. The clamping component includes a clamping part, and a clamping groove is arranged on the clamping part. The clamping component having a snap-fitting part, and a snap-fitting groove is arranged on the snap-fitting part. The clamping groove and the snap-fitting groove are correspondingly set. A first holding space is arranged on the clamping part, and a second holding space is arranged on the snap-fitting part. The adsorption component comprises a first magnetic element located in the first holding space, and the adsorption component also comprises a second magnetic element, which is located in the second holding space.

A method includes generating, in a normal mode, an aircraft power setpoint and an aircraft pitch setpoint based on a desired airspeed setpoint and a desired altitude setpoint. The method includes transitioning from the normal mode to an underpower mode when the aircraft is unable to maintain the desired airspeed setpoint. The method includes setting, in the underpower mode, the aircraft power setpoint to a full power setting, generating, in the underpower mode, the aircraft pitch setpoint based on the desired altitude setpoint, and transitioning from the underpower mode to an underspeed mode when the aircraft airspeed is less than an airspeed threshold value while the aircraft power setpoint is set to the full power setting. The method includes maintaining, in the underspeed mode, the aircraft power setpoint at the full power setting and generating, in the underspeed mode, the aircraft pitch setpoint based on the desired airspeed setpoint.

A lighter-than-air airship has an exoskeleton constructed of spokes and hubs to create a set of connected hexagrams comprised of isosceles triangles wherein the spokes flex and vary in length to produce the slope of said airship's surface. In one embodiment, the exoskeleton connects to a nose cone that includes a cockpit cabin for controlling the airship's operation from a single location that can be physically separated from the exoskeleton in response to catastrophic events and for autonomous and/or remotely piloted operation. An improved means is also provided for landing and unloading cargo, and through use of unmanned aerial vehicles in another embodiment, the airship is configured for remote pickup, transport, delivery and return of payloads such as packages. In yet another embodiment, the airship provides a communications platform for beam form transmission and satellite signal relay, including in combination with the foregoing disclosed attributes.

Obtaining location data in a novel way is considered to be a part of this invention. An exemplary method for doing so includes identifying first positioning information for a data delivery vehicle based at least in part on a plurality of positioning signals received at the data delivery vehicle from a set of satellites of a global navigation satellite system (GNSS). The example method comprises obtaining relative position information associated with a position vector from the data delivery vehicle to a remote vehicle, the remote vehicle being unable to receive the plurality of positioning signals from the set of satellites. The example method comprises determining second positioning information for the remote vehicle based at least in part on the first positioning information and the relative position information. The example method comprises transmitting the second positioning information to the remote vehicle.