Device and method for transmitting signals in plurality of frequency bands

An electronic device comprising:

• a housing;
• a plurality of antennas;
• at least one wireless communication circuit located in the housing and electrically connected to the plurality of antennas and configured to simultaneously process a signal in a first frequency band and a signal in a second frequency band higher than the first frequency band, based on a neighbor awareness networking (NAN) protocol;
• a processor located in the housing and operatively connected to the at least one wireless communication circuit;
• and
• a memory located in the housing and operatively connected to the processor, wherein the memory stores instructions that, when executed, cause the processor to:
• transmit a first signal in the first frequency band including at least one of a synchronization beacon frame, a service discovery frame, or an action frame at a first interval for a series of first durations, and
• transmit a second signal in the second frequency band including at least one of the synchronization beacon frame, the service discovery frame, or the action frame at a second interval for a second duration at least partially overlapping the first duration.