US 12,075,491 B2
Method and device for channel access in wireless communication system
Jinyoung Oh, Suwon-si (KR); Hyunseok Ryu, Suwon-si (KR); Sungjin Park, Suwon-si (KR); Jonghyun Bang, Suwon-si (KR); and Jeongho Yeo, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/250,602
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Aug. 9, 2019, PCT No. PCT/KR2019/010152
§ 371(c)(1), (2) Date Feb. 8, 2021,
PCT Pub. No. WO2020/032734, PCT Pub. Date Feb. 13, 2020.
Claims priority of application No. 10-2018-0094010 (KR), filed on Aug. 10, 2018.
Prior Publication US 2021/0298072 A1, Sep. 23, 2021
Int. Cl. H04W 74/0833 (2024.01); H04W 72/0446 (2023.01); H04W 72/23 (2023.01); H04W 74/00 (2009.01)
CPC H04W 74/085 (2013.01) [H04W 72/0446 (2013.01); H04W 72/23 (2023.01); H04W 74/006 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of performing a channel access procedure of a terminal in an unlicensed band, the method comprising:
receiving, via a system information block (SIB), from a base station, information indicating a type of the channel access procedure in the unlicensed band;
receiving, from the base station, a frame-based channel access procedure configuration including a fixed frame period (FFP);
in case that the type of the channel access procedure is a frame based channel access procedure, determining, based on the FFP, a channel occupancy time (COT) and a start time of a channel occupancy, wherein the start time of the channel occupancy is determined based on a time duration and the FFP; and
transmitting, to the base station, an uplink signal based on a downlink signal from the base station within the COT.