7. A wireless communication method of a terminal, the method comprising:
receiving a wireless signal;
extracting length information from the wireless signal, wherein the length information represents duration of the wireless
extracting basic service set (BSS) identifier information of the wireless signal;
determining whether the wireless signal is a wireless signal of an overlapping BSS based on the extracted BSS identifier information;
setting a transmission opportunity (TXOP) of the terminal based on the extracted length information when the wireless signal
is determined to be a wireless signal of an overlapping BSS.