Method for allocating ACK/NACK resource in wireless communication system and apparatus therefor

A method of receiving acknowledgement/negative-acknowledgement (ACK/NACK) by a transmitting device in a wireless communication system, the method comprising:

• transmitting data to a receiving device;
• and
• receiving ACK/NACK feedback for the data from the receiving device,
• wherein a resource size of the one or more resources allocated for transmitting an ACK/NACK is determined based on a distance between the transmitting device and the receiving device,
• wherein, based on the ACK/NACK being transmitted in the form of a sequence, an ACK/NACK sequence is determined based on the resource size of the one or more resources allocated for transmitting the ACK/NACK,
• wherein a smallest length of an ACK/NACK sequence transmitted on a smallest resource of a smallest resource size is used as a unit,
• wherein the smallest resource is configured among the one or more resources allocated for transmitting the ACK/NACK, and
• wherein a length of an ACK/NACK sequence transmitted on a resource allocated for transmitting the ACK/NACK larger than the smallest resource corresponds to a multiple of the unit.

A receiving device for feeding back acknowledgement/negative-acknowledgement (ACK/NACK) in a wireless communication system, the receiving device comprising:

• a radio frequency unit;
• and
• a processor,
• wherein the processor is configured to receive data from a transmitting device and feed back ACK/NACK for the data to the transmitting device, and
• wherein a resource size of one or more resources allocated for transmitting an ACK/NACK is determined based on a distance between the transmitting device and the receiving device,
• wherein, based on the ACK/NACK being transmitted in the form of a sequence, an ACK/NACK sequence is determined based on the resource size of the one or more resources allocated for transmitting the ACK/NACK,
• wherein a smallest length of an ACK/NACK sequence transmitted on a smallest resource of a smallest resource size is used as a unit,
• wherein the smallest resource is configured among the one or more resources allocated for transmitting the ACK/NACK, and
• wherein a length of an ACK/NACK sequence transmitted on a resource allocated for transmitting the ACK/NACK larger than the smallest resource corresponds to a multiple of the unit.