METHOD AND DEVICE FOR ACHIEVING COMPATIBILITY BETWEEN PROFILES IN WIRELESS POWER TRANSMISSION SYSTEM

A method for receiving wireless power is performed in a wireless power transmission system by a wireless power receiver supporting a magnetic power profile (MPP), and is characterized in that: an identification (ID) packet is transmitted to a wireless power transmitter, wherein the ID packet includes information notifying the presence of an extended ID (XID) packet; the XID packet is transmitted to the wireless power transmitter, wherein the XID packet includes information notifying that the wireless power receiver supports the MPP; and a configuration (CFG) packet is transmitted to the wireless power transmitter, wherein, on the basis that the wireless power receiver receives ACK having a bit pattern different from MPP ACK in response to the CFG packet, or is unable to receive a response to the CFG packet, the wireless power receiver receives the wireless power on the basis of a profile different from the MPP.