Signaling method for multi-user transmission, and wireless communication terminal and wireless communication method using same
The present invention relates to a signaling method of a wireless LAN frame for multi-user transmission, and to a wireless communication terminal, and a wireless communication method using the same. To this end, provided are a wireless communication terminal, including: a transceiver; and a processor, wherein the processor is configured to: generate a frame including a first signal field and a second signal field, wherein the first signal field includes a bandwidth field indicating total bandwidth information in which the frame is transmitted, and the second signal field includes a resource allocation field indicating arrangement information of resource unit(s) in a frequency band through which the frame is transmitted, and transmit, by the transceiver, the generated frame 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:
generate a frame including a first signal field and a second signal field, wherein the first signal field includes a bandwidth field indicating total bandwidth information in which the frame is transmitted, and the second signal field includes a resource allocation field indicating arrangement information of resource unit(s) in a frequency band through which the frame is transmitted, and
transmit, by the transceiver, the generated frame,
wherein when the frame is a multi-user frame using multiple input multiple output (MIMO) without applying orthogonal frequency division multiple access (OFDMA), the second signal field does not include the resource allocation field.
2. The wireless communication terminal of claim 1 , wherein the arrangement information of resource unit(s) includes information on the size of each resource unit and the placement thereof in a frequency domain.
3. The wireless communication terminal of claim 1 , wherein the second signal field further includes user field(s) indicating information of at least one wireless communication terminal allocated to each resource unit.
4. The wireless communication terminal of claim 3 , wherein the user field(s) includes identifier information and number of streams information of at least one wireless communication terminal allocated to each resource unit.
5. The wireless communication terminal of claim 3 , wherein the user field(s) sequentially indicates information of wireless communication terminal(s) allocated to at least one of the resource unit(s) constituting the frequency band.
6. The wireless communication terminal of claim 1 , wherein when the frequency band is divided into a plurality of subbands, the frequency band is constituted by a combination of at least one of a first resource unit having a basic size, a second resource unit having a size based on twice the size of the first resource unit, and a third resource unit having a size based on four times the size of the first resource unit.
7. The wireless communication terminal of claim 6 , wherein the first resource unit has a size based on a value obtained by dividing the frequency band into 9.
8. The wireless communication terminal of claim 6 , wherein the first resource unit comprises 26 subcarriers, the second resource unit comprises 52 subcarriers, and the third resource unit comprises 106 subcarriers.
9. The wireless communication terminal of claim 1 , wherein the first signal field includes a predetermined field indicating whether the frame is the multi-user frame using the MIMO without applying the OFDMA.
10. A wireless communication method of a wireless communication terminal, the method comprising:
generating a frame including a first signal field and a second signal field, wherein the first signal field includes a bandwidth field indicating total bandwidth information in which the frame is transmitted, and the second signal field includes a resource allocation field indicating arrangement information of resource unit(s) in a frequency band through which the frame is transmitted; and
transmitting the generated frame,
wherein when the frame is a multi-user frame using multiple input multiple output (MIMO) without applying orthogonal frequency division multiple access (OFDMA), the second signal field does not include the resource allocation field.
11. The wireless communication method of claim 10 , wherein the arrangement information of resource unit(s) includes information on the size of each resource unit and the placement thereof in a frequency domain.
12. The wireless communication method of claim 10 , wherein the second signal field further includes user field(s) indicating information of at least one wireless communication terminal allocated to each resource unit.
13. The wireless communication method of claim 12 , wherein the user field(s) includes identifier information and number of streams information of at least one wireless communication terminal allocated to each resource unit.
14. The wireless communication method of claim 12 , wherein the user field(s) sequentially indicates information of wireless communication terminal(s) allocated to at least one of the resource unit(s) constituting the frequency band.
15. The wireless communication method of claim 10 , wherein when the frequency band is divided into a plurality of subbands, the frequency band is constituted by a combination of at least one of a first resource unit having a basic size, a second resource unit having a size based on twice the size of the first resource unit, and a third resource unit having a size based on four times the size of the first resource unit.
16. The wireless communication method of claim 15 , wherein the first resource unit has a size based on a value obtained by dividing the frequency band into 9.
17. The wireless communication method of claim 15 , wherein the first resource unit comprises 26 subcarriers, the second resource unit comprises 52 subcarriers, and the third resource unit comprises 106 subcarriers.
18. The wireless communication method of claim 10 , wherein the first signal field includes a predetermined field indicating whether the frame is the multi-user frame using the MIMO without applying the OFDMA.