Patent ID: 11864179
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. A terminal configured to operate in a wireless communication system, the terminal comprising:
at least one transceiver for transmitting and receiving a radio signal; and
at least one processor for controlling the at least one transceiver,
wherein the at least one processor is configured to:
receive, from a base station, configuration information related to a control resource set (CORESET), wherein the configuration information includes a list of transmission configuration indicator (TCI) states, and each TCI state in the list of TCI states includes information for configuring a quasi co-location (QCL) relationship between one or more reference signals and one or more antenna ports of a demodulation reference signal (DMRS) of a physical downlink control channel (PDCCH);
receive, from the base station, a medium access control (MAC) control element (CE) for indicating two TCI states of the CORESET among the list of TCI states; and
receive, from the base station, a first PDCCH in the CORESET,
wherein, based on the two TCI states being activated for the CORESET by receiving the MAC CE, one or more antenna ports of a DMRS of the first PDCCH in the CORESET are quasi co-located (QCLed) with reference signals of the two TCI states,
wherein the MAC CE includes i) a CORESET identifier (ID) field, ii) a first TCI state ID field indicating one of the two TCI states applicable to the CORESET identified by the CORESET ID field and iii) a second TCI state ID field indicating the other of the two TCI states applicable to the CORESET identified by the CORESET ID field.