The present disclosure relates to technique for facilitating PDCCH monitoring in carrier aggregation for lower power consumption. A UE stops a physical downlink control channel (PDCCH) monitoring on a set of activated secondary cells (SCells) in response to a monitoring stoppage event. The UE may resume the PDCCH monitoring on at least one SCell of the set of activated SCells in response to a monitoring resumption event. The set of activated SCells may remain activated during a period between the stopping of the PDCCH monitoring and the resuming of the PDCCH monitoring.