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1. (WO2018124725) WIRELESS COMMUNICATION METHOD USING OFDMA RANDOM ACCESS AND WIRELESS COMMUNICATION TERMINAL USING SAME

Pub. No.:    WO/2018/124725    International Application No.:    PCT/KR2017/015535
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 28 00:59:59 CET 2017
IPC: H04W 74/08
H04W 84/12
H04L 1/16
H04L 1/00
H04W 74/00
H04W 28/06
Applicants: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
주식회사 윌러스표준기술연구소
SK TELECOM CO., LTD.
에스케이텔레콤 주식회사
Inventors: KO, Geonjung
고건중
SON, Juhyung
손주형
AHN, Woojin
안우진
KWAK, Jinsam
곽진삼
Title: WIRELESS COMMUNICATION METHOD USING OFDMA RANDOM ACCESS AND WIRELESS COMMUNICATION TERMINAL USING SAME
Abstract:
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.