lifting the load with an aerial drone and a lifting hook of a tower crane, wherein the aerial drone provides a lifting force to the load, wherein the tower crane comprises a jib from which a hoist rope with a lifting hook thereon is suspended, wherein the jib is rotatable about an upright axis of rotation, wherein the load is connected to the aerial drone and to the lifting hook of the tower crane;

carrying and/or directing the load by controlling the aerial drone together with the tower crane in a mutually coordinated manner by a common controller configured to control the aerial drone and the tower crane, wherein the common controller is configured to control flight movements of the aerial drone, wherein the common controller comprises a main controller;

inputting to the main controller desired flight and tower crane movements from which control signals are generated and transmitted to the aerial drone and the tower crane on the basis of the input desired movements;

controlling the aerial drone by varying a flight trajectory of the aerial drone;

wherein the aerial drone comprises a multicopter and carries a portion of the load;

automatically determining, in a continuous or cyclical manner by a position determiner, the position of the aerial drone relative to the tower crane;

actuating the aerial drone by a position control device on the basis of a signal of the position determiner such that a relative position between the aerial drone and the tower crane remains constant and/or follows a predetermined trajectory; and

autonomously remotely controlling the aerial drone in an autonomous control mode such that the aerial drone freely approaches various desired positions relative to the tower crane and/or relative to a guide drone.