Wireless communication method for simultaneous data transmission and reception and wireless communication apparatus using same
The present invention relates to a wireless communication method for simultaneous transmit and receive of data and a wireless communication terminal using the same, and more particularly, to a wireless communication method and an apparatus thereof which can efficiently perform simultaneous data transmission and reception even in an overlapped BSS environment. To this end, provided are a wireless communication method of a terminal, including: performing a backoff procedure for transmitting data; transmitting a first RTS frame when a backoff counter of the backoff procedure is expired; setting a transmission timer for waiting for transmitting the data when a second RTS frame is received in response to the transmitted first RTS frame; and waiting for transmitting the data based on the set transmission timer and a wireless communication terminal using the same.
1. A wireless communication method of a terminal, the method comprising:
receiving, from an AP, a trigger frame indicating transmission(s) of at least one terminal in a same basic service set (BSS);
obtaining duration information indicated by the trigger frame;
performing a data transmission in response to the reception of the trigger frame; and
receiving acknowledgement frame corresponding to the data transmission based on the duration information;
wherein, in response to the trigger frame, multiple data transmissions are simultaneously performed by a plurality of terminals in the same BSS when the plurality of terminals are indicated by the trigger frame, and
wherein the receiving the acknowledgement frame comprises, when a duration of the data transmission is shorter than a duration corresponding to the duration information indicated by the trigger frame, receiving the acknowledgement frame at a time determined based on the duration information indicated by the trigger frame.
2. The wireless communication method of claim 1 , wherein the multiple data transmissions are performed at a predetermined time in response to the reception of the trigger frame.
3. The wireless communication method of claim 1 , wherein the plurality of terminals which perform the multiple data transmissions simultaneously are indicated by a predetermined bit of the trigger frame.
4. The wireless communication method of claim 1 , wherein the receiving step receives the acknowledgement frame by waiting for receiving the acknowledgement frame until the time determined based on the duration information indicated by the trigger frame.
5. The wireless communication method of claim 1 , wherein acknowledgement frames corresponding to the multiple data transmissions are received to the plurality of terminals at the time determined based on the duration information indicated by the trigger frame even when durations of the multiple data transmission are different from each other.
6. A wireless communication terminal comprising:
a transceiver; and
a processor,
wherein the processor is configured to:
receive, from an AP, a trigger frame indicating transmission(s) of at least one terminal in a same basic service set (BSS),
obtain duration information indicated by the trigger frame,
perform a data transmission in response to the reception of the trigger frame, and
receive acknowledgement frame corresponding to the data transmission based on the duration information,
wherein, in response to the trigger frame, multiple data transmissions are simultaneously performed by a plurality of terminals in the same BSS when the plurality of terminals are indicated by the trigger frame, and
wherein when a duration of the data transmission is shorter than a duration corresponding to the duration information indicated by the trigger frame, the processor receives the acknowledgement frame at a time determined based on the duration information indicated by the trigger frame.
7. The wireless communication terminal of claim 6 , wherein the multiple data transmissions are performed at a predetermined time in response to the reception of the trigger frame.
8. The wireless communication terminal of claim 6 , wherein the plurality of terminals which perform the multiple data transmissions simultaneously are indicated by a predetermined bit of the trigger frame.
9. The wireless communication terminal of claim 6 , wherein the processor receives the acknowledgement frame by waiting for receiving the acknowledgement frame until the time determined based on the duration information indicated by the trigger frame.
10. The wireless communication terminal of claim 6 , wherein acknowledgement frames corresponding to the multiple data transmissions are received to the plurality of terminals at the time determined based on the duration information indicated by the trigger frame even when durations of the multiple data transmission are different from each other.