A wireless device monitors search spaces by receiving an orthogonal frequency-division multiplexing, OFDM, symbol in a downlink slot. The OFDM symbol is included in a control-resource set, CORESET, of resource elements configured to carry control information. The CORESET is associated with at least one property. The wireless device identifies at least one first property of the at least one property of the CORESET. Then, the wireless device monitors at least one particular search space for a control message related to the wireless device based on the identified at least one first property of the CORESET.