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|1. (WO2018124725) WIRELESS COMMUNICATION METHOD USING OFDMA RANDOM ACCESS AND WIRELESS COMMUNICATION TERMINAL USING SAME|
|Applicants:||WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
SK TELECOM CO., LTD.
|Title:||WIRELESS COMMUNICATION METHOD USING OFDMA RANDOM ACCESS AND WIRELESS COMMUNICATION TERMINAL USING SAME|
Disclosed is a wireless communication terminal for wirelessly communicating with a basic wireless communication terminal. The wireless communication terminal comprises a transmitting/receiving unit; and a processor. The processor sets an integer selected from within a range from 0 to a value equal to or smaller than an OFDMA contention window (OCW) as a counter for random access, receives a trigger frame for triggering, by means of the transmitting/receiving unit, the random access that uses one or more resource units (RUs) assigned to the random access from the basic wireless communication terminal, reduces a value of the counter on the basis of the one or more RUs assigned to the random access and arbitrarily selects one or more of the RUs assigned to the random access when the value of the counter is zero or becomes zero, and attempts to transmit to the base wireless communication terminal by using the selected RUs. At this time, the RU is a group of a plurality of subcarriers that can be used for uplink transmission and downlink transmission.