Patent ID: 11968148
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A method for receiving a signal by a base station in a wireless communication system, the method comprising:
transmitting information about a plurality of periodic uplink (UL) resources for reception of hybrid automatic repeat request-acknowledgement (HARQ-ACK) information for multicast data;
transmitting, in a search space for multicast configured on a specific downlink frequency resource, a physical downlink control channel (PDCCH) carrying downlink control information (DCI) having a cyclic redundancy check (CRC) scrambled with a group-radio network temporary identifier (G-RNTI),
wherein the DCI includes activation information associated with a first periodic UL resource among the plurality of periodic UL resources; and
based on the first periodic UL resource being activated through the activation information, receiving, through the first periodic UL resource, a message including the HARQ-ACK information and activation confirmation information set to an index of the activated first periodic UL resource.