Patent ID: 11956798
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A terminal in a communication system, the terminal comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a base station, configuration information on a semi-persistent scheduling (SPS) for a multicast,
in case that first downlink control information (DCI) for activating the SPS is received from the base station, receive, from the base station, a first SPS physical downlink shared channel (PDSCH) after an activation of the SPS based on the configuration information and the first DCI,
identify hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to the first SPS PDSCH according to a first feedback scheme,
receive, from the base station, a second SPS PDSCH, and
identify HARQ-ACK information corresponding to the second SPS PDSCH according to a second feedback scheme,

wherein the first feedback scheme is a feedback type that a terminal generates ACK or NACK as HARQ-ACK information and the second feedback scheme is a feedback type that a terminal generates only NACK as HARQ-ACK information.