US 12,225,595 B2
Channel access method for performing transmission in unlicensed band, and device using same
Minseok Noh, Gyeonggi-do (KR); Kyungjun Choi, Gyeonggi-do (KR); and Jinsam Kwak, Gyeonggi-do (KR)
Assigned to WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-Do (KR)
Filed by WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-do (KR)
Filed on Oct. 19, 2023, as Appl. No. 18/381,966.
Application 18/381,966 is a continuation of application No. 17/740,194, filed on May 9, 2022, granted, now 11,838,955.
Application 17/740,194 is a continuation of application No. 17/590,824, filed on Feb. 2, 2022, granted, now 11,503,653, issued on Nov. 15, 2022.
Application 17/590,824 is a continuation of application No. PCT/KR2020/010409, filed on Aug. 6, 2020.
Claims priority of application No. 10-2019-0095457 (KR), filed on Aug. 6, 2019.
Prior Publication US 2024/0049305 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/0833 (2024.01); H04W 72/1263 (2023.01); H04W 72/23 (2023.01); H04W 74/08 (2024.01); H04W 74/0816 (2024.01)
CPC H04W 74/085 (2013.01) [H04W 72/1263 (2013.01); H04W 72/23 (2023.01); H04W 74/0816 (2013.01); H04W 74/0866 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A user equipment (UE) for use in a wireless communication system, the UE comprising:
a communication module; and
a processor controlling the communication module,
wherein the processor is configured to:
attempt to transmit a transmission using a first channel access procedure, the first channel access procedure including a channel sensing for a time interval of 16 μs before the transmission; and
if the first channel access procedure for the transmission is failed, and the transmission is in a set of contiguous transmissions prior to a last transmission of the set, attempt to transmit a next transmission in the set using a second channel access procedure, the second channel access procedure including a channel sensing for a time interval of 25 μs before the next transmission.