METHOD AND DEVICE FOR ILLEGAL PACKET PROCESSING AND VALIDITY VERIFICATION IN WIRELESS POWER TRANSMISSION SYSTEM

The present specification (present disclosure) provides a method for transferring wireless power by a wireless power transmitter in a wireless power transmission system and a device using same, the method comprising: entering a power transfer phase related to transferring the wireless power to a wireless power receiver; and detecting an illegal packet during the power transfer phase, wherein, on the basis that the illegal packet is detected, the wireless power transmitter terminates a data transport stream, attempts opening the data transport stream, or restarts the data stream.