Unmanned aerial vehicle, remote controller, and control method thereof

A control method for communicating with an unmanned aerial vehicle (UAV) includes: transmitting a signal from a remote controller to the UAV through a first communication network; monitoring a state of the first communication network; and in response to the state of the first communication network not meeting a state condition: prompting, on an interface of the remote controller, a user to perform a user selection for selecting a cooperative method of the first communication network and a second communication network; receiving the user selection; and performing a network switching according to the selected corporation method to transmit at least a portion of the signal from the remote controller to the UAV through the second communication network.