Method, device, and system for allocating harq process number for downlink transmission and uplink transmission in wireless communication system

A terminal of a wireless communication system, the terminal comprising:

• a communication module;
• and
• a processor,
• wherein the processor is configured to:
• receive configuration information related to a configuration of a slot from a base station,
• wherein the configuration information is used to set each of at least one symbol included in the slot as an uplink symbol, a downlink symbol, or a flexible symbol,
• receive downlink control information (DCI) for scheduling multiple physical uplink shared channels (PUSCHs) from a base station,
• wherein the DCI indicates a specific Hybrid Automatic Repeat Request (HARQ) process number,
• wherein the specific HARQ process number indicated by the DCI is applied to a specific PUSCH among the multiple PUSCHs,
• wherein the specific PUSCH is an earliest PUSCH that does not overlap with the downlink symbol indicated by the configuration information, and
• wherein a HARQ process number for a ‘N’th PUSCH among the multiple PUSCHs is increased compared to a HARQ process number for a ‘N−1’th PUSCH based on whether at least one symbol of a slot in which the ‘N’th PUSCH is scheduled overlaps with the downlink symbol configured by the configuration information.

A method of transmitting a physical uplink shared channel (PUSCH) by a terminal in a wireless communication system, the method comprising:

• receiving configuration information related to a configuration of a slot from a base station,
• wherein the configuration information is used to set each of at least one symbol included in the slot as an uplink symbol, a downlink symbol, or a flexible symbol;
• and
• receiving downlink control information (DCI) for scheduling multiple physical uplink shared channels (PUSCHs) from a base station,
• wherein the DCI indicates a specific Hybrid Automatic Repeat Request (HARQ) process number,
• wherein the specific HARQ process number indicated by the DCI is applied to a specific PUSCH among the multiple PUSCHs,
• wherein the specific PUSCH is an earliest PUSCH that does not overlap with the downlink symbol indicated by the configuration information, and
• wherein a HARQ process number for a ‘N’th PUSCH among the multiple PUSCHs is increased compared to a HARQ process number for a ‘N−1’th PUSCH based on whether at least one symbol of a slot in which the ‘N’th PUSCH is scheduled overlaps with the downlink symbol configured by the configuration information.