Patent ID: 11963230
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
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.