US 11,856,612 B2
Method and apparatus for performing random access in wireless communication system
Jonghyun Bang, Gyeonggi-do (KR); Jinyoung Oh, Gyeonggi-do (KR); Hyunseok Ryu, Gyeonggi-do (KR); Sungjin Park, Gyeonggi-do (KR); Cheolkyu Shin, Gyeonggi-do (KR); and Jeongho Yeo, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd
Appl. No. 17/418,108
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
PCT Filed Feb. 12, 2020, PCT No. PCT/KR2020/001945
§ 371(c)(1), (2) Date Jun. 24, 2021,
PCT Pub. No. WO2020/166954, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 10-2019-0017349 (KR), filed on Feb. 14, 2019.
Prior Publication US 2022/0104265 A1, Mar. 31, 2022
Int. Cl. H04W 74/04 (2009.01); H04W 74/08 (2009.01)
CPC H04W 74/0833 (2013.01) 15 Claims
OG exemplary drawing
 
1. A method performed by a terminal, the method comprising:
receiving configuration information for transmission of multiple random access preambles from a base station;
transmitting a first random access preamble based on the configuration information for transmission of the multiple random access preambles;
adjusting at least one of a length of a channel access procedure gap for a second random access preamble or a length of a random access channel transmission interval based on transmission of the first random access preamble; and
attempting channel access for transmission of the second random access preamble in the channel access procedure gap based on adjustment of at least one of the length of the channel access procedure gap or the length of the random access channel transmission interval.