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 base wireless communication terminal, the terminal comprising:
a transceiver; and
a processor,
wherein the processor is configured to:
transmit, through the transceiver, a trigger frame triggering a multi-user uplink transmission of one or more terminals, and
receive, through the transceiver, uplink packet(s) transmitted from one or more terminals in response to the trigger frame,
wherein a predetermined padding is performed before a frame check sequence (FCS) field of the trigger frame, and
wherein a predetermined association ID (AID) field information is inserted to the trigger frame to indicate the predetermined padding.
2. The base wireless communication terminal of claim 1 , wherein duplicated information is used for the predetermined padding.
3. The base wireless communication terminal of claim 1 , wherein the predetermined padding is set based on a processing time needed for the one or more terminals to respond to the trigger frame.
4. The base wireless communication terminal of claim 1 , wherein the uplink packet is padded that the multi-user uplink transmission of one or more terminals to be terminated at the same time.
5. The base wireless communication terminal of claim 1 ,
wherein the processor is further configured to:
transmit, through the transceiver, a response frame for the received uplink packet(s),
wherein the response frame is a block ACK.
6. The base wireless communication terminal of claim 5 , wherein padding is performed on a block ACK transmitted through at least one resource to terminate block ACK transmission(s) in each resource at the same time.
7. A wireless communication method of a base wireless communication terminal, comprising:
transmitting a trigger frame triggering a multi-user uplink transmission of one or more terminals; and
receiving uplink packet(s) transmitted from one or more terminals in response to the trigger frame;
wherein a predetermined padding is performed before a frame check sequence (FCS) field of the trigger frame, and
wherein a predetermined association ID (AID) field information is inserted to the trigger frame to indicate the predetermined padding.
8. The wireless communication method of claim 7 , wherein duplicated information is used for the predetermined padding.
9. The wireless communication method of claim 7 , wherein the predetermined padding is set based on a processing time needed for the one or more terminals to respond to the trigger frame.
10. The wireless communication method of claim 7 , wherein the uplink packet is padded that the multi-user uplink transmission of one or more terminals to be terminated at the same time.
11. The wireless communication method of claim 7 , wherein the method further comprising:
transmitting a response frame for the received uplink packet(s); and
wherein the response frame is a block ACK.
12. The wireless communication method of claim 11 , wherein padding is performed on a block ACK transmitted through at least one resource to terminate block ACK transmission(s) in each resource at the same time.