Wireless communication method and wireless communication terminal

1. A wireless communication terminal comprising:

a transceiver; and

a processor,

wherein the processor is configured to:

receive, using the transceiver, a trigger frame for triggering multiple access to a base wireless communication terminal,

transmit, at a designated time, information on whether each of channels is sensed to be idle by the wireless communication terminal, included in a plurality of wireless communication terminals, at the designated time to the base wireless communication terminal simultaneously with a transmission of information on whether each of channels is sensed to be idle by one or more other wireless communication terminals from the one or more other wireless communication terminals, wherein the designated time is when a certain time elapsed from when the trigger frame has been received,

receive a first frame comprising information for accessing, by the plurality of wireless communication terminals, the base wireless communication terminal,

acquire the information for accessing the base wireless communication terminal on a basis of the first frame, and

access the base communication terminal on a basis of the information for accessing the base wireless communication terminal,

wherein the base wireless communication terminal is any one communication terminal different from the plurality of wireless communication terminals.

2. The wireless communication terminal of claim 1 ,

wherein the processor is configured to transmit the information on whether each of channels is sensed to be idle by the wireless communication terminal using an orthogonal code.

3. The wireless communication terminal of claim 2 ,

wherein the processor is configured to randomly select any one of a plurality of orthogonal codes, and

transmit the information on whether each of channels is sensed to be idle by the wireless communication terminal using the selected orthogonal code.

4. The wireless communication terminal of claim 1 , wherein the processor is configured to:

transmit, to the base wireless communication terminal, required information for allocating channels to the plurality of wireless communication terminals,

receive a second frame indicating the channel allocated to the wireless communication terminal, and

transmit data to the base wireless communication terminal on a basis of the second frame.

5. The wireless communication terminal of claim 4 , wherein required information for allocating channels to the plurality of wireless communication terminals comprises information indicating a size of data to be transmitted by the wireless communication terminal to the base wireless communication terminal.

6. The wireless communication terminal of claim 4 , wherein required information for allocating channels to the plurality of wireless communication terminals comprises an identifier for identifying the wireless communication terminal.

7. The wireless communication terminal of claim 1 , wherein the processor is configured to transmit, to the base wireless communication terminal, a third frame based on the first frame and then transmit meaningless dummy data immediately after the third frame.

8. The wireless communication terminal of claim 7 , wherein the third frame is a data frame comprising data.

9. The wireless communication terminal of claim 7 , wherein the third frame is a frame comprising required information for channel allocation for the wireless communication terminal to the base wireless communication terminal.

10. The wireless communication terminal of claim 1 , wherein the processor is configured to repeatedly transmit an identical frame to the base wireless communication terminal.

11. The wireless communication terminal of claim 1 , wherein the information for accessing the base wireless communication terminal comprises information on a time when the wireless communication terminal accesses the base wireless communication terminal.

12. The wireless communication terminal of claim 11 , wherein the information for accessing the base wireless communication terminal comprises information on a period that the wireless communication terminal accesses the base wireless communication terminal.

13. The wireless communication terminal of claim 1 , wherein the processor is configured to receive, from the base wireless communication terminal, a fourth frame for triggering an access to the base wireless communication terminal and accesses the base wireless communication terminal on a basis of the fourth frame.

14. A base wireless communication terminal comprising:

a transceiver; and

a processor,

wherein the processor is configured to:

transmit, using transceiver, a trigger frame for triggering multiple access to the base wireless communication terminal to a plurality of wireless communication terminals,

simultaneously receive, from the plurality of wireless communication terminals, the information on whether each of channels is idle at a designated time, wherein the information on whether each of channels is idle is transmitted at the designated time, wherein the designated time is when a certain time elapsed from when the trigger frame has been received at the plurality of wireless communication terminals, and

transmit, to the plurality of wireless communication terminals, a first frame comprising information for accessing, by the plurality of communication terminals, the base wireless communication terminal.

15. The base wireless communication terminal of claim 14 , wherein the processor is configured to receive, from the plurality of wireless communication terminals, required information for allocating channels to the plurality of wireless communication terminals,

allocate the channels the plurality of wireless communication terminals on a basis of the required information for allocating the channels to the plurality of wireless communication channels, and

transmit a frame indicating the channels allocated to the plurality of wireless communication channels.

16. The base wireless communication terminal of claim 14 , wherein the processor is configured to receive a second frame and meaningless dummy data immediately after the second frame from the any one wireless communication terminal, wherein the second frame is transmitted based on the first frame.

17. The base wireless communication terminal of claim 14 , wherein the information for accessing the base wireless communication terminal comprises information on a period that the plurality of wireless communication terminals access the base wireless communication terminal.

18. An operation method of a wireless communication terminal included in a plurality of wireless communication terminals, the operation method comprising:

receiving a trigger frame for triggering multiple access to a base wireless communication terminal,

transmitting, at a designated time, the information on whether each of channels is idle through the wireless signal at the designated time to the base wireless communication terminal simultaneously with a transmission of information on whether each of channels is sensed to be idle by one or more other wireless communication terminals from the one or more other wireless communication terminals, wherein the designated time is when a certain time elapsed from when the trigger frame has been received,

receiving a frame comprising information for accessing, by the plurality of wireless communication terminals, the base wireless communication terminal;

acquiring the information for accessing the base wireless communication terminal on a basis of a frame comprising information for accessing the base wireless communication terminal; and

accessing the base communication terminal on a basis of the information for accessing the base wireless communication terminal,

wherein the base wireless communication terminal is any one wireless communication terminal different from the plurality of wireless communication terminals.