Patent ID: 11902210
Assignee: KIA MOTORS CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An operation method of a first terminal in a communication system, the operation method comprising:
receiving, from a base station, configuration information including a first information element indicating a type of a hybrid automatic repeat request-acknowledgement (HARQ-ACK) codebook;
generating the HARQ-ACK codebook including a downlink (DL) HARQ information bit for downlink communication between the base station and the first terminal and a sidelink (SL) HARQ information bit for sidelink communication between the first terminal and a second terminal; and
transmitting, to the base station, the HARQ-ACK codebook using an uplink channel,
wherein the HARQ-ACK codebook transmitted to the base station has the type indicated by the first information element.