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

Claim 11:
12. A base station configured to operate in a wireless communication system, the base station comprising:
a transceiver; and
a processor configured to perform operations, the operations comprising:
transmitting information about a plurality of periodic uplink (UL) resources for transmission of hybrid automatic repeat request-acknowledgement (HARQ-ACK) information for multicast data; and
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
wherein, based on the first periodic UL resource being activated through the activation information, the operations further comprise 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.