Method and apparatus for receiving tone signal in synchronous wireless distributed communication system

A first terminal in a wireless distributed communication system using a synchronous time division multiple access (TDMA) scheme, the first terminal comprising:

• a processor;
• a memory electronically communicating with the processor;
• and
• instructions stored in the memory,
• wherein when executed by the processor, the instructions cause the first terminal to:
• configure a position of a first sub-slot in a frame of an information tone channel, wherein the position of the first sub-slot is configured based on a mobile communication number of the first terminal and information on a time that an information tone signal is transmitted and received in the information tone channel;
• sense for, by the first terminal in a sleep state, a first information tone signal transmitted from a second terminal in the first sub-slot;
• maintain a state of the first terminal to the sleep state when the first information tone signal is not detected in the first sub-slot, and transition the state of the first terminal to a wake-up state when the first information tone signal is detected in the first sub-slot;
• and
• transmit and receive, by the first terminal having transitioned to the wake-up state, a data signal to and from the second terminal through a preconfigured data channel,
• wherein the information tone channel is a tone channel in which a preconfigured information is mapped to each of sub-slots constituting the frame and a center frequency of the information tone channel is configured to be different from a center frequency for the data channel.