公开(公告)号：US20220086908A1

公开(公告)日：2022-03-17

申请号：US17421652

申请日：2020-01-13

Applicant: LG ELECTRONICS INC.

Inventor： Sechang MYUNG ,  Suckchel YANG ,  Seonwook KIM ,  Joonkui AHN ,  Changhwan PARK,

IPC: H04W74/08

Abstract: Provided are a method of performing a channel access procedure by an apparatus in an unlicensed band, and an apparatus using same method. The apparatus determines a contention window size (CWS) and performs a channel access procedure with respect to a first channel on the basis of the determined contention window size. The contention window size may be adjusted on the basis of feedback information relating to a second channel. When a transmission history of the second channel, which is to be reflected in determining the contention window size, does not exist, the contention window size may be determined to be a minimum CWS value in a specific channel access priority class.