US 11,963,230 B2
Method and device for transmitting and receiving signal in wireless communication system
Seokmin Shin, Seoul (KR); Suckchel Yang, Seoul (KR); Seonwook Kim, Seoul (KR); Joonkui Ahn, Seoul (KR); Changhwan Park, Seoul (KR); and Seunggye Hwang, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/310,541
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Mar. 27, 2020, PCT No. PCT/KR2020/004228
§ 371(c)(1), (2) Date Aug. 10, 2021,
PCT Pub. No. WO2020/197329, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0036390 (KR), filed on Mar. 28, 2019; and application No. 10-2019-0084801 (KR), filed on Jul. 12, 2019.
Prior Publication US 2022/0070939 A1, Mar. 3, 2022
Int. Cl. H04W 74/08 (2009.01); H04L 27/26 (2006.01); H04W 74/0833 (2024.01)
CPC H04W 74/0833 (2013.01) [H04L 27/2605 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for enabling a user equipment (UE) to transmit and receive signals in a wireless communication system comprising:
transmitting a physical random access channel (PRACH); and
receiving a random access response (RAR) based on the PRACH,
wherein
the PRACH includes N MAX sequences mapped to a frequency domain,
wherein
the N_MAX sequences construct M groups each including N sequences, and the N_MAX sequences have the same length; and
the N_MAX sequences are generated based on the same base sequence, different cyclic shift (CS) values are applied to the N sequences, and the pattern of the different CS values is equally applied to the M groups;
a phase shift (PS) value is separately applied to each of the N_MAX sequences, wherein:
the N_MAX value is set to 4;
from among the N_MAX sequences,
the CS value of ‘0’ and the PS value of ‘0’ are applied to a first sequence, the CS value corresponding to 1 sample and the PS value of ‘0+1i’ are applied to a second sequence, the CS value of ‘0’ and the PS value of ‘0+1i’ are applied to a third sequence, and the CS value corresponding to 1 sample and the PS value of ‘0’ are applied to a fourth sequence;
the CS value of ‘0’ and the PS value of ‘0’ are applied to the first sequence, the CS value of ‘0’ and the PS value of ‘0-1i’ are applied to the second sequence, the CS value corresponding to 1 sample and the PS value of ‘0’ are applied to the third sequence, and the CS value corresponding to 1 sample and the PS value of ‘0+1i’ are applied to the fourth sequence; and
the CS value of ‘0’ and the PS value of ‘0’ are applied to the first sequence, the CS value corresponding to 1 sample and the PS value of ‘−1’ are applied to the second sequence, the CS value of ‘0’ and the PS value of ‘0-1i’ are applied to the third sequence, and the CS value corresponding to 1 sample and the PS value of ‘0-1i’ are applied to the fourth sequence.