The present disclosure relates to a user equipment (UE), comprising the following. A processor of the UE operates a monitoring function that involves monitoring of a downlink control channel for receiving a downlink control information message based on one of a plurality of groups of search space sets. A receiver of the UE receives a downlink control information message via the monitored downlink control channel, wherein the received downlink control information message allocates transmission or reception of data to the UE. The processor further determines one group of the plurality of groups of search space sets for performing the monitoring function of the downlink control channel. The determining the one group of search space sets is based on the content or the format of the received downlink control information message.