A method for control channel monitoring includes: obtaining the wideband configuration indicating information about a plurality of LBT subbands within the wideband; obtaining a CORESET configuration of multiple CORESETs; obtaining a search space set configuration of multiple search space sets, each configured search space set being associated with a configured CORESET and containing an indication to enable/disable multiple subband monitoring; and determining the CORESET to be monitored based on each search space set configuration, so that when the indication is to enable multiple subband monitoring, monitoring the associated CORESET in the LBT subband within which the associated CORESET is confined, and monitoring frequency shifted CORESET of the associated CORESET, in the other LBT subbands of the plurality of LBT subbands, each frequency shifted CORESET being confined within one other LBT subbands; when the indication is to disable multiple subband, monitoring the associated CORESET in the plurality of LBT subbands.