Method and device for performing PAC code-based hybrid decoding in wireless communication system

A method of a reception device for performing polarization adjusted convolutional (PAC) code-based decoding in a wireless communication system, the method comprising:

• simultaneously performing a Fano decoding and a list decoding on a signal received from a transmission device;
• in case that the Fano decoding is completed earlier than the list decoding, determining that the Fano decoding is reliable and outputting a result of the Fano decoding;
• and
• in case that the list decoding is completed earlier than the Fano decoding, outputting, based on a decoding reliability of the list decoding, a result of the list decoding or the result of the Fano decoding.

A reception device for performing a polarization adjusted convolutional (PAC) code-based decoding in a wireless communication system, the reception device comprising:

• a transceiver;
• and
• a processor operably connected to the transceiver, the processor configured to:
• identify, for a signal received through the transceiver from a transmission device, a specific criterion variable related to a channel state for selecting at least one of a Fano decoding or a list decoding,
• compare the specific criterion variable related to the channel state with a threshold;
• perform the Fano decoding in case that the specific criterion variable related to the channel state satisfies the threshold, and
• perform the list decoding in case that the specific criterion variable related to the channel state does not satisfy the threshold.