Method for transmitting signal on basis of multi-radio access technology in wireless communication system and apparatus therefor

A user equipment (UE) performing multi-radio access technology (RAT) simultaneous transmission in a wireless communication system, the UE comprising:

• a receiver configured to receive information on a plurality of subframe sets and a plurality of power management parameters to be applied to each of the plurality of subframe sets from a first RAT base station;
• a processor configured to set maximum transmit power of a first RAT signal and maximum transmit power of a second RAT signal using the plurality of power management parameters;
• and
• a transmitter configured to transmit at least one of the first RAT signal or the second RAT signal based on the set maximum transmit power,
• wherein the plurality of subframe sets contain a first subframe set in which transmission of the first RAT signal is allowed only and a second subframe set in which multi-RAT simultaneous transmission is allowed,
• wherein the plurality of power management parameters contain a parameter for limiting the maximum transmit power of the second RAT signal to be simultaneously transmitted with the first RAT signal in the second subframe set, and
• wherein when transmit power required by a specific signal among the first RAT signal and the second RAT signal to be transmitted in the second subframe set, exceeds maximum transmit power set to the specific signal, the processor is configured to drop a remaining signal except the specific signal.