Wireless communication terminal and wireless communication method for multi-user concurrent transmission
The present invention relates to a wireless communication terminal and a wireless communication method for efficiently managing simultaneous data transmissions of a plurality of terminals. To this end, provided are a base wireless communication terminal including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the base wireless communication terminal, wherein the processor is configured to: transmit a trigger frame triggering a multi-user uplink transmission of a plurality of terminals, receive multi-user uplink data through resources allocated to the plurality of terminals, and transmit a block ACK through the resources in response to the received multi-user uplink data, wherein the transmission of the block ACK in each resource is terminated at the same time, and a wireless communication method using the same.
1. A wireless communication terminal, the terminal comprising:
a transceiver; and
a processor,
wherein the processor is configured to:
receive, through the transceiver, a trigger frame indicating uplink transmission of one or more terminals,
wherein the trigger frame includes an association identifier (AID) field, and
perform, through the transceiver, an uplink transmission in response to the trigger frame,
wherein the AID field is used to identify whether the trigger frame includes a padding field to which padding is applied, and
wherein the trigger frame further includes the padding field when the AID field is set to a specific value.
2. The wireless communication terminal of claim 1 , wherein a duration of the padding field is set based on a time needed for the one or more terminals to process the trigger frame.
3. The wireless communication terminal of claim 1 , wherein the padding field is contained before a frame check sequence (FCS) field included in the trigger frame.
4. The wireless communication terminal of claim 1 , wherein the AID field indicates a start of the padding, when the AID field is set to the specific value.
5. The wireless communication terminal of claim 4 , wherein the predetermined AID field information is duplicated bit information in an AID field.
6. The wireless communication terminal of claim 1 , wherein the padding is applied in the trigger frame by using duplicated information.
7. The wireless communication terminal of claim 6 , wherein the padding is applied in the trigger frame by duplicating the predetermined AID field information.
8. The wireless communication terminal of claim 1 , wherein the processor is further configured to:
generate an uplink packet to perform the uplink transmission, and
perform the uplink transmission in response to the trigger frame by using the generated uplink packet,
wherein a padding is applied to the uplink packet to terminate the uplink transmission at a designated time.
9. The wireless communication terminal of claim 1 ,
wherein the AID field is set to the specific value according to the number of user information for the one or more terminal.
10. The wireless communication terminal of claim 1 ,
wherein all bits of the padding field are set by repeating a specific value when the padding field is included in the trigger frame.
11. A wireless communication method of a wireless communication terminal, comprising:
receiving a trigger frame indicating uplink transmission of one or more terminals,
wherein the trigger frame includes an association identifier (AID field); and
performing an uplink transmission in response to the trigger frame,
wherein the AID field is used to identify whether the trigger frame includes a padding field to which padding is applied, and
wherein the trigger frame further includes the padding field when the AID field is set to a specific value.
12. The wireless communication method of claim 11 , wherein a duration of the padding field is set based on a time needed for the one or more terminals to process the trigger frame.
13. The wireless communication method of claim 11 , wherein the padding field is contained before a frame check sequence (FCS) field included in the trigger frame.
14. The wireless communication method of claim 11 , wherein the AID field indicates a start of the padding, when the AID field is set to the specific value.
15. The wireless communication method of claim 14 , wherein the predetermined AID field information is duplicated bit information in an AID field.
16. The wireless communication method of claim 11 , wherein the padding is applied in the trigger frame by using duplicated information.
17. The wireless communication method of claim 16 , wherein the padding is applied in the trigger frame by duplicating the predetermined AID field information.
18. The wireless communication method of claim 11 , further comprising:
generating an uplink packet to perform the uplink transmission, and
performing the uplink transmission in response to the trigger frame by using the generated uplink packet,
wherein a padding is applied to the uplink packet to terminate the uplink transmission at a designated time.