Wireless communication device and wireless communication method

A wireless communication device comprising:

• a receiver that receives a signal using one of a plurality of transmission formats that use at least one of a first frequency band and a second frequency band;
• and
• a determiner that determines a transmission format being used in the received signal from among the plurality of transmission formats;
• wherein the determination unit comprises
• a first extractor that extracts a first component of the first frequency band from the received signal,
• a first power calculator that calculates a first power difference between the received signal and the first component,
• a second extractor that extracts a second component of the second frequency band from the received signal,
• a second power calculator that calculates a second power difference between the received signal and the second component, and
• a mode determiner that determines the transmission format being used in the received signal based on a magnitude relationship between the first power difference and a predetermined value, and a magnitude relationship between the second power difference and the predetermined value.