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

1. An operation method of a first terminal in a wireless distributed communication system using a synchronous time division multiple access (TDMA) scheme, the operation method comprising:

configuring 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;

sensing for, by the first terminal in a sleep state, a first information tone signal transmitted from a second terminal in the first sub-slot;

maintaining 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 transitioning 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

transmitting and receiving, 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.

2. The operation method according to claim 1 , further comprising, when the information tone signal is detected in the first sub-slot, transmitting a second information tone signal to the second terminal in a second sub-slot preconfigured in the information tone channel.

3. 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.

4. The first terminal according to claim 3 , wherein the instructions further cause the first terminal to, when the information tone signal is detected in the first sub-slot, transmit a second information tone signal to the second terminal in a second sub-slot preconfigured in the information tone channel.