US 11,844,114 B2
Method and apparatus for transmitting and receiving signals in wireless communication system
Seokmin Shin, Seoul (KR); Suckchel Yang, Seoul (KR); Seonwook Kim, Seoul (KR); Joonkui Ahn, Seoul (KR); and Changhwan Park, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/310,494
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Feb. 13, 2020, PCT No. PCT/KR2020/002030
§ 371(c)(1), (2) Date Aug. 5, 2021,
PCT Pub. No. WO2021/166991, PCT Pub. Date Aug. 20, 2020.
Claims priority of provisional application 62/808,878, filed on Feb. 22, 2019.
Claims priority of application No. 10-2019-0018029 (KR), filed on Feb. 15, 2019; application No. 10-2019-0036406 (KR), filed on Mar. 28, 2019; application No. 10-2019-0052598 (KR), filed on May 3, 2019; and application No. 10-2019-0055323 (KR), filed on May 10, 2019.
Prior Publication US 2022/0117003 A1, Apr. 14, 2022
Int. Cl. H04W 74/08 (2009.01); H04L 27/26 (2006.01); H04L 1/00 (2006.01); H04W 72/0453 (2023.01); H04W 72/1263 (2023.01)
CPC H04W 74/0841 (2013.01) [H04L 1/0008 (2013.01); H04L 27/26025 (2021.01); H04W 72/0453 (2013.01); H04W 72/1263 (2013.01); H04W 74/0866 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method of transmitting and receiving a signal by a user equipment (UE) in a wireless communication system, the method comprising:
transmitting a first physical random access channel (PRACH); and
receiving a random access response (RAR) based on the first PRACH,
wherein the first PRACH is configured by repeatedly mapping a PRACH sequence of a specific length a plurality of times in a frequency domain, and
wherein the PRACH sequence is mapped to 12 consecutive physical resource blocks (PRBs),
wherein one random access channel occasion (RO) is configured based on the PRACH sequence repeated the plurality of times,
wherein the one RO is configured to be available for a second PRACH,
wherein the second PRACH is configured without repeating the PRACH sequence of the specific length mapped to the 12 consecutive PRBs in the frequency domain, and
wherein among random access preamble identifiers (RAPIDs) related to the one RO, several RAPIDs are used for the first PRACH, and remaining RAPIDs are used for the second PRACH.