Wireless communication method for simultaneous data communication, and wireless communication terminal using same
The present invention relates to a wireless communication method for simultaneous data communication and a wireless communication terminal using the same, and more particularly, to a wireless communication method for suppressing interference between terminals and ensuring fairness when performing data simultaneous communication for spatial reuse of communication system and wireless communication terminal using the same. For this, provided are a wireless communication method and a wireless communication terminal using the same. The method includes: receiving a wireless signal of a specific channel; extracting basic service set (BSS) identifier information of the received wireless signal; extracting length information from the wireless signal wherein the length information represents information relating to a transmission completion time point of the wireless signal; and adjusting a data transmission period of the terminal based on the extracted length information, when the BSS identifier information of the wireless signal is different from BSS identifier information of the terminal.
1. A wireless communication terminal comprising:
a transceiver configured to transmit and receive wireless signals; and
a processor configured to process wireless signals transmitted or received through the transceiver,
wherein the processor is configured to:
receive a first packet through the transceiver,
measure a received signal strength of the first packet,
determine whether the first packet is a packet of a basic service set (BSS) with which the terminal is associated or a packet of a different BSS from the BSS with which the terminal is associated, and
access a channel based on the received signal strength of the first packet when the first packet is determined to be the packet of the different BSS from the BSS with which the terminal is associated.
2. The terminal of claim 1 , wherein transmission of a packet by the terminal is allowed when the received signal strength of the first packet is below a set value.
3. The terminal of claim 2 , wherein the transmission of a packet by the terminal is allowed within a transmission period of a second packet transmitted in response to the first packet.
4. The terminal of claim 1 , wherein whether to access the channel depends on whether an intended transmission power of a packet to be transmitted by the terminal is below a threshold determined based on the received signal strength of the first packet.
5. The terminal of claim 4 , wherein as the received signal strength of the first packet is higher, an allowed transmission power of the packet to be transmitted by the terminal is lower.
6. The terminal of claim 1 , wherein the processor is further configured to:
extract BSS identifier information of the first packet,
compare the BSS identifier information of the first packet with BSS identifier information of the BSS with which the terminal is associated, and
determine whether the first packet is the packet of the BSS with which the terminal is associated or the packet of the different BSS from the BSS with which the terminal is associated based on a result of comparing the BSS identifier information.
7. A wireless communication method of a terminal, the method comprising:
receiving a first packet;
measuring a received signal strength of the first packet;
determining whether the first packet is a packet of a basic service set (BSS) with which the terminal is associated or a packet of a different BSS from the BSS with which the terminal is associated; and
accessing a channel based on the received signal strength of the first packet when the first packet is determined to be the packet of the different BSS from the BSS with which the terminal is associated.
8. The method of claim 7 , wherein transmission of a packet by the terminal is allowed when the received signal strength of the first packet is below a set value.
9. The method of claim 8 , wherein the transmission of a packet by the terminal is allowed within a transmission period of a second packet transmitted in response to the first packet.
10. The method of claim 7 , wherein whether to access the channel depends on whether an intended transmission power of a packet to be transmitted by the terminal is below a threshold determined based on the received signal strength of the first packet.
11. The method of claim 10 , wherein as the received signal strength of the first packet is higher, an allowed transmission power of the packet to be transmitted by the terminal is lower.
12. The method of claim 7 , wherein the determining step further comprises:
extracting BSS identifier information of the first packet;
comparing the BSS identifier information of the first packet with BSS identifier information of the BSS with which the terminal is associated; and
determining whether the first packet is a packet of the BSS with which the terminal is associated or the packet of the different BSS from the BSS with which the terminal is associated based on a result of comparing the BSS identifier information.