Method for communicating with external electronic device and electronic device supporting same

An electronic device, comprising:

• a display;
• a memory;
• a communication module configured to transmit and receive data to and from an external electronic device;
• and
• a processor configured to be electrically connected to the memory, the display, and the communication module,
• wherein the processor is configured to
• establish a channel with the external electronic device according to a Miracast scheme through the communication module,
• packetize first data including video data or audio data into a first group;
• packetize second data including control image data, which is output to receive a user input in the external electronic device, into a second group separately from the first group,
• transmit the first group of packets to the external electronic device according to a first communication protocol, and
• transmit the second group of packets to the external electronic device according to a second communication protocol.