Method and device for transmitting and receiving signal in wireless communication system

A user equipment (UE) configured to transmit and receive signals in a wireless communication system comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one memory operatively connected to the at least one processor, and configured to store instructions such that the at least one processor performs specific operations by executing the instructions,
• wherein the specific operations include:
• 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.

A device configured to operate for a user equipment (UE) comprising:

• at least one processor;
• and
• at least one memory operatively connected to the at least one processor, and configured to store instructions such that the at least one processor performs specific operations by executing the instructions,
• wherein the specific operations include:
• 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.