Abstract: A signal from a mobile communication device (102) of an unmanned aerial vehicle (103) is received, via cellular network communication, by each of a plurality of cellular network base stations (106, 107, 108). A position of the unmanned aerial vehicle (103) is determined based on a triangulation operation performed using the signal received by the cellular network base stations (106, 107, 108). Vehicle navigational data derived from the position determination is used to determine that a navigation assistance notification should be communicated to a notification receiver (102, 114) and, in response, communication of the navigation assistance notification to the notification receiver (102, 114) is initiated.

Abstract: A mobile communication device (102) of a vehicle (103) is associated with a navigation system (202). Vehicle navigational data derived from the navigation system (202) is received, via cellular network communication, from the mobile communication device (102) of a vehicle (103). The vehicle navigational data is used to determine that a navigation assistance notification should be communicated to the mobile communication device (102) and, in response, communication of the navigation assistance notification to the mobile communication device (102) is initiated.

Abstract: An apparatus for controlling an unmanned vehicle is described. The apparatus comprises: a receiver for receiving a first vehicle control signal from a remote controller; a memory for storing a route for the vehicle to follow; and a processor. The processor is configured to: determine characteristics of the first vehicle control signal; and generate a second vehicle control signal, wherein the second vehicle control signal comprises an instruction for the vehicle to perform a manoeuvre to follow the route. The apparatus further comprises a transmitter configured to transmit the second vehicle control signal, arranged to have the determined characteristics, to the vehicle. A system and method for controlling an unmanned vehicle are also described.

Abstract: A controller for an unmanned vehicle is described. The controller comprises: a receiver for receiving a deconflicted route from a deconfliction engine, the deconflicted route comprising at least one waypoint; a first communications interface for enabling electrical communication between the controller and a corresponding communications interface on an unmanned vehicle; and a processor. The processor is configured to: receive the current position of the unmanned vehicle; generate a vehicle control signal for instructing the unmanned vehicle to perform a manoeuvre which moves the unmanned vehicle from its current position to the at least one waypoint; and transmit the vehicle control signal to the unmanned vehicle through the first communications interface. An unmanned vehicle, a system and method of controlling an unmanned vehicle are also described.