Aircraft and external device of the aircraft, communication method, device and system

An aircraft, comprising:

• a communication electric circuit configured to establish a communication link to wirelessly communicate with an external device;
• a storage device configured to store a computer program;
• a processor configured to execute the computer program to:
• obtain a data transmission request received through the communication electric circuit;
• in response to a triggering condition being satisfied, based on the data transmission request, switching a communication electric circuit of the aircraft from operating a first software defined ration (SDR) firmware to operating a second SDR firmware;
• and
• control the communication electric circuit to receive data to be transmitted through a communication link of the aircraft;
• and
• an aircraft body configured to perform a flight based on flight instructions from the processor,
• wherein:
• communication electric circuits of the aircraft and the external device are respectively configured to execute corresponding SDR firmwares to establish communication links;
• the first SDR firmware is configured to establish the communication link of the aircraft, and the second SDR firmware is configured to establish a communication link of the external device;
• and
• a bandwidth of a communication link of the aircraft operated with the second SDR firmware is broader than a bandwidth of the communication link of the aircraft operated with the first SDR firmware.