Wireless communication method and wireless communication terminal
Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit/receive a wireless signal and a processor configured to control an operation of the wireless communication terminal. The transceiver receives a MAC frame including information on a plurality of wireless communication terminals that are to receive data from a base wireless communication terminal. The plurality of wireless communication terminals include the wireless communication terminal and receive data from the base wireless communication terminal based on the MAC frame.
1. A base wireless communication terminal comprising:
a transceiver; and
a processor,
wherein the processor is configured to transmit, by using the transceiver, a Multiple-Request to Send (M-RTS) frame to a plurality of wireless communication terminals, wherein the M-RTS frame is a medium access control (MAC) frame and includes a plurality of channel vector fields, wherein each of the plurality of channel vector fields indicates information on an allocated sub-frequency band which is allocated to a wireless communication terminal corresponding to each of the plurality of channel vector fields among the plurality of wireless communication terminals, wherein the allocated sub-frequency band is allocated for communication between the base wireless communication terminal and at least one of the plurality of wireless communication terminals after a transmission of the M-RTS frame, and
receive a Clear to Send (CTS) frame which is a response to the M-RTS frame from the at least one of the plurality of wireless communication terminals,
wherein bits of each of the plurality of channel vector fields are divided into a first one or more bits indicating a location of a channel, among a plurality of channels, which includes the allocated sub-frequency band, and a second one or more bits indicating a location and a size of a sub-channel corresponding to the allocated sub-frequency band within the channel, and
wherein the sub-channel is included in the channel.
2. The base wireless communication terminal of claim 1 , wherein the M-RTS frame includes a plurality of identifiers for identifying each of the plurality of wireless communication terminals.
3. The base wireless communication terminal of claim 1 , wherein the first one or more bits indicate index of the channel and the second one or more bits indicate the index of the sub-channel.
4. The base wireless communication terminal of claim 1 , wherein the processor is configured to transmit data frames to the plurality of wireless communication terminal when a predetermined time elapses after receiving the CTS frame.
5. The base wireless communication terminal of claim 1 , wherein the processor is configured to transmit the M-RTS frame through a frequency band including the primary channel having the minimum unit bandwidth.
6. A wireless communication terminal comprising:
a transceiver; and
a processor,
wherein the processor is configured to receive, by using the transceiver, a M-RTS (Multiple-Request to Send) frame from the base wireless communication terminal, wherein the M-RTS frame is a medium access control (MAC) frame and includes a plurality of channel vector fields, wherein each of the plurality of channel vector fields indicates information on an allocated sub-frequency band which is allocated to a wireless communication terminal corresponding to each of the plurality of channel vector fields among the plurality of wireless communication terminals, wherein the allocated sub-frequency band allocated for communication between the base wireless communication terminal and at least one of the plurality of wireless communication terminals after a transmission of the M-RTS frame, and
transmit a Clear to Send (CTS) frame which is a response to the M-RTS frame to the base wireless communication terminal,
wherein bits of each of the plurality of channel vector fields are divided into a first one or more bits indicating a location of a channel, among a plurality of channels, which includes the allocated sub-frequency band, and a second one or more bits indicating a location and a size of a sub-channel corresponding to the allocated sub-frequency band within the channel, and
wherein the sub-channel is included in the channel.
7. The wireless communication terminal of claim 6 , wherein the M-RTS frame includes a plurality of identifiers for identifying each of the plurality of wireless communication terminals.
8. The wireless communication terminal of claim 6 , wherein the first one or more bits indicate index of the channel and the second one or more bits indicate the index of the sub-channel.
9. The wireless communication terminal of claim 6 , wherein the processor is configured to receive a data frame from the base wireless communication terminal after transmitting the CTS frame.
10. The wireless communication terminal of claim 6 , wherein the processor is configured to receive the M-RTS frame through a frequency band including the primary channel having the minimum unit bandwidth.
11. An operation method of a wireless communication terminal comprising:
receiving a Multiple-Request to Send (M-RTS) frame from the base wireless communication terminal, wherein the M-RTS frame is a medium access control (MAC) frame and includes a plurality of channel vector fields, wherein each of the plurality of channel vector fields indicates information on an allocated sub-frequency band which is allocated to a wireless communication terminal corresponding to each of the plurality of channel vector fields among the plurality of wireless communication terminals, wherein the allocated sub-frequency band is for communication between the base wireless communication terminal and at least one of the plurality of wireless communication terminals after a transmission of the M-RTS frame; and
transmitting a Clear to Send (CTS) frame which is a response to the M-RTS frame to the base wireless communication terminals,
wherein bits of each of the plurality of channel vector fields are divided into a first one or more bits indicating a location of a channel, among a plurality of channels, which includes the allocated sub-frequency band, and a second one or more bits indicating a location and a size of a sub-channel corresponding to the allocated frequency band within the channel, and
wherein the sub-channel is included in the channel.
12. The operation method of claim 11 , wherein the M-RTS frame includes a plurality of identifiers for identifying each of the plurality of wireless communication terminals.
13. The operation method of claim 11 , wherein the first one or more bits indicate index of the channel and the second one or more bits indicate the index of the sub-channel.
14. The operation method of claim 11 , further comprising receiving a data frame from the base wireless communication terminal after transmitting the CTS frame.
15. The operation method of claim 11 , further comprising receiving the M-RTS frame through a frequency band including the primary channel having the minimum unit bandwidth.