A base station transmits, to a wireless device, configuration parameters of a secondary physical uplink control channel (PUCCH) group. The configuration parameters include a PUCCH secondary cell and a secondary cell. The base station transmits, during a first time interval, a command activating the secondary cell. The base station starts reception of channel state information, from the wireless device, for the secondary cell from a second time interval that is a positive number plus a pre-determined number of time intervals after the first time interval. In response to activation of the PUCCH secondary cell being completed in or after the pre-determined number of time intervals after the first time interval, the positive number is based on when the activation of the PUCCH secondary cell is completed by the wireless device.