Method for transmitting and receiving signal in wireless communication system, and device supporting same

An apparatus configured to operate in a wireless communication system, the apparatus comprising:

• a memory;
• and
• at least one processor coupled with the memory,
• wherein the at least one processor is configured to:
• transmit a message A comprising a physical random access channel (PRACH) preamble and a physical uplink shared channel (PUSCH);
• and
• receive a message B comprising a random access response (RAR),
• wherein the PRACH preamble belongs to a first plurality of PRACH preambles which are mapped to a plurality of valid PUSCH occasions,
• wherein the PUSCH is transmitted based on physical uplink shared channel (PUSCH) configuration for the message A, and
• wherein based on information related to a demodulation reference signal (DM-RS) code division multiplexing (CDM) group of the PUSCH configuration, at least one DM-RS CDM group for the PUSCH is configured among two DM-RS CDM groups.

A method performed by a base station (BS) in a wireless communication system, the method comprising:

• receiving a message A comprising a physical random access channel (PRACH) preamble and a physical uplink shared channel (PUSCH);
• and
• transmitting a message B comprising a random access response (RAR),
• wherein the PRACH preamble belongs to a first plurality of PRACH preambles which are mapped to a plurality of valid PUSCH occasions,
• wherein the PUSCH is received based physical uplink shared channel (PUSCH) configuration for the message A, and
• wherein based on information related to a demodulation reference signal (DM-RS) code division multiplexing (CDM) group of the PUSCH configuration, at least one DM-RS CDM group for the PUSCH is configured among two DM-RS CDM groups.

An apparatus configured to operate in a wireless communication system, the apparatus comprising:

• a memory;
• and
• at least one processor coupled with the memory,
• wherein the at least one processor is configured to:
• receive a message A comprising a physical random access channel (PRACH) preamble and a physical uplink shared channel (PUSCH);
• and
• transmit a message B comprising a random access response (RAR),
• wherein the PRACH preamble belongs to a first plurality of PRACH preambles which are mapped to a plurality of valid PUSCH occasions,
• wherein the PUSCH is received based on physical uplink shared channel (PUSCH) configuration for the message A, and
• wherein based on information related to a demodulation reference signal (DM-RS) code division multiplexing (CDM) group of the PUSCH configuration, at least one DM-RS CDM group for the PUSCH is configured among two DM-RS CDM groups.