Patent ID: 11917683
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A terminal in a communication system, the terminal comprising a processor and a memory storing at least one instruction executable by the processor, wherein the at least one instruction causes the processor to:
receive first configuration information of one or more guard bands of an unlicensed band from a base station;
identify the one or more guard bands configured in the unlicensed band based on the first configuration information;
identify a plurality of resource block (RB) sets configured in the unlicensed band based on the one or more guard bands;
receive, from the base station, second configuration information of a control resource set (CORESET) configured in the unlicensed band and third configuration information of a search space configured in the unlicensed band;
receive, from the base station, fourth configuration information indicating whether downlink communication is performed in each of the plurality of RB sets; and
performing the downlink communication with the base station in a first RB set among the plurality of RB sets, the first RB set being indicated by the fourth configuration information as an RB set in which the downlink communication is performed,
wherein the second configuration information is commonly applied to the plurality of RB sets, a number of RBs in which the CORESET is disposed is equal to or less than a number of RBs belonging to one RB set, resources of a channel state information-reference signal (CSI-RS) are configured in the plurality of RB sets, a measurement operation on the CSI-RS is performed in the downlink communication between the terminal and the base station in the first RB set, and the measurement operation on the CSI-RS is not performed in a second RB set among the plurality of RB sets when the second RB set is indicated by the fourth configuration information as an RB set in which the downlink communication is not performed.