A wireless device receives from a base station, one or more messages comprising configuration parameters of a layer 1 reference signal received power reporting for a secondary cell. The configuration parameters indicate resource configurations of a plurality of reference signals on the secondary cell. A medium access control control element indicating activation of the secondary cell is received. In response to the medium access control control element, a layer 1 reference signal received power report for the layer 1 reference signal received power reporting for the secondary cell is transmitted. The layer 1 reference signal received power report comprises: first fields indicating at least one reference signal of the plurality of reference signals; and second fields indicating at least a layer 1 reference signal received power value of the at least one reference signals.