Wireless communication method and wireless communication terminal using training signal

A base wireless communication terminal comprises:

• a transceiver configured to transmit/receive a wireless signal;
• and
• a processor configured to control an operation of the wireless communication terminal,
• wherein the transceiver allocates a plurality of sub-frequency bands to a plurality of wireless communication terminals, receives a training signal from each of the plurality of wireless communication terminals based on the plurality of sub-frequency bands allocated to each of the plurality of wireless communication terminals, and receives data from each of the plurality of wireless communication terminals based on the training signal through the plurality of sub-frequency bands allocated to each of the plurality of wireless communication terminals.

An operating method of a wireless communication terminal, the method comprising:

• transmitting a training signal to a base wireless communication terminal based on a sub-frequency band allocated from the base wireless communication terminal;
• and
• transmitting data to the base wireless communication terminal through the sub-frequency band allocated from the base wireless communication terminal,
• wherein the training signal is used, by the base wireless communication terminal, for receiving the data from the wireless communication terminal.