US 12,250,722 B2
Method by which terminal transmits uplink signal in unlicensed band, and apparatus using method
Sechang Myung, Seoul (KR); Seonwook Kim, Seoul (KR); and Joonkui Ahn, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seou (KR)
Appl. No. 17/290,676
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Nov. 4, 2019, PCT No. PCT/KR2019/014852
§ 371(c)(1), (2) Date Apr. 30, 2021,
PCT Pub. No. WO2020/091565, PCT Pub. Date May 7, 2020.
Claims priority of application No. 10-2018-0133487 (KR), filed on Nov. 2, 2018; and application No. 10-2019-0100575 (KR), filed on Aug. 16, 2019.
Prior Publication US 2021/0392685 A1, Dec. 16, 2021
Int. Cl. H04W 74/0816 (2024.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01); H04W 72/1263 (2023.01); H04W 72/23 (2023.01); H04W 74/00 (2009.01)
CPC H04W 74/0816 (2013.01) [H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/1263 (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 user equipment (UE), the method comprising:
receiving, from a base station, information notifying an available resource block set and channel occupancy time duration; and
performing a channel access procedure for an uplink transmission,
wherein, for the uplink transmission within the channel occupancy time duration in a time domain and the available resource block set in a frequency domain, the UE switches from i) a first channel access procedure where the UE transmits a transmission after sensing a channel to be idle during sensing durations and after a counter is zero to ii) a second channel access procedure where the UE transmits a transmission immediately after sensing a channel to be idle for a specific time.