1. A wireless communication terminal, the terminal comprising:a transceiver; and
wherein the processor is configured to:
receive a preamble of a packet through the transceiver, wherein the preamble includes channel allocation field indicating a channel configuration in which data transmission is to be performed and number of users corresponding to the channel configuration, wherein the channel allocation field represents both the channel configuration and the number of users by a particular index value among preset index values and wherein a single index value of at least some of the preset index values indicates two or more different subchannel bandwidths allocated to respective users, and
receive, through the transceiver, data of the packet based on the channel allocation field.