A wireless device receives configuration parameters of cells grouped into physical uplink control channel (PUCCH) groups comprising a primary PUCCH group comprising a primary cell, and a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH. The wireless device receives, during a first time interval, a first indication to activate a secondary cell of the primary PUCCH group. The wireless device starts transmission of channel state information of the secondary cell from a second time interval that is pre-determined number of time intervals after the first time interval. The wireless device receives, during a third time interval, a second indication for activation of the PUCCH secondary cell, and starts transmission of channel state information for the PUCCH secondary cell from a fourth time interval that is a number of time intervals after the third time interval.