Method and device for signaling for sliding window superposition coding transmission in wireless communication system

A method of a base station, the method comprising:

• identifying decoding information;
• transmitting, to a first terminal, first information included in the decoding information using a higher layer signaling;
• and
• transmitting, to the first terminal, control information including second information included in the decoding information,
• wherein the first information and the second information are used to decode data transmitted to a second terminal.

A first terminal comprising:

• a transceiver configured to transmit or receive signals;
• and
• at least one processor configured to:
• receive, from a first base station, first information included in decoding information using a higher layer signaling,
• receive, from the first base station, control information including second information included in the decoding information,
• identify the second information by decoding the control information, and
• decode data transmitted to a second terminal based on the first information and the second information.

A base station comprising:

• a transceiver configured to transmit or receive signals;
• and
• at least one processor configured to:
• identify decoding information,
• transmit, to a first terminal, first information included in the decoding information using a higher layer signaling, and
• transmit, to the first terminal, control information including second information included in the decoding information, wherein the first information and the second information are used to decode data transmitted to a second terminal.