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

A user equipment (UE) comprising:

• at least one transceiver for transmitting and receiving a wireless signal;
• and
• at least one processor for controlling the at least one transceiver,
• wherein the at least one processor configured to:
• receive, from a base station, configuration information related to uplink transmission;
• and
• transmit, to the base station, a first uplink channel for random access based on the configuration information,
• wherein the configuration information includes information on subcarrier spacing of the first uplink channel and information on subcarrier spacing of a second uplink channel for data transmission,
• wherein based on i) the subcarrier spacing of the first uplink channel, ii) the subcarrier spacing of the second uplink channel and iii) a length of a sequence for random access, a number of resource blocks occupied by the first uplink channel, expressed as a number of resource blocks for the second uplink channel, is determined so that the sequence for random access is mapped to a minimum number of resource blocks and an offset for mapping the sequence for random access in the resource blocks occupied by the first uplink channel is greater than 1.

A base station comprising:

• at least one transceiver for transmitting and receiving a wireless signal;
• and
• at least one processor for controlling the at least one transceiver,
• wherein the at least one processor configured to:
• transmit, to a user equipment (UE), configuration information related to uplink transmission;
• and
• receive, from the UE, a first uplink channel for random access based on the configuration information,
• wherein the configuration information includes information on subcarrier spacing of the first uplink channel and information on subcarrier spacing of a second uplink channel for data transmission,
• wherein based on i) the subcarrier spacing of the first uplink channel, ii) the subcarrier spacing of the second uplink channel and iii) a length of a sequence for random access, a number of resource blocks occupied by the first uplink channel, expressed as a number of resource blocks for the second uplink channel-PUSCH, is determined so that the sequence for random access is mapped to a minimum number of resource blocks and an offset for mapping the sequence for random access in the resource blocks occupied by the first uplink channel is greater than 1.