A data transmitting/receiving method capable of effectively suppressing power consumption includes: establishing synchronization between a master device and a slave device; receiving a data frame; extracting payloads from the received data frame; generating a new payload section by combining the extracted payloads with another payload extracted from another data frame received from another device or a new payload generated by the device; generating a new synchronization section and a new header section; generating a new data frame by combining the new synchronization section and the new header section that are generated with the new payload section; and transmitting the generated new data frame.