Patent ID: 11864233
Assignee: SK TELECOM CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 10:
11. An operation method of a wireless communication terminal comprising:
receiving a Multiple-Request to Send (M-RTS) frame from a 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 a plurality of wireless communication terminals; 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,
wherein the sub-channel is included in the channel.