A method for radio resource configuration, RRC, signaling, the method comprising: receiving, by a wireless device, at least one RRC message comprising a plurality of parameters of a plurality of cells grouped into a plurality of physical uplink control channel, PUCCH, groups comprising: a primary PUCCH group comprising a primary cell with a primary PUCCH; and a secondary PUCCH group comprising a PUCCH secondary cell, SCell, with a secondary PUCCH; and wherein: the plurality of parameters comprise configuration parameters for an SCell in the plurality of cells, the SCell is considered to be the PUCCH secondary cell, PUCCH SCell, if PUCCH parameters are present in the configuration parameters; wherein the method is characterised in that: wherein for an SCell, other than the PUCCH SCell, in an RRC message to configure said SCell, presence of an information element, IE, indicates that the SCell is mapped to the secondary PUCCH group, and absence of the IE in the configuration parameters for the SCell in the RRC message indicates that the SCell is mapped to the primary PUCCH group; transmitting channel state information of the SCell, other than the PUCCH SCell, on the PUCCH secondary cell, when the RRC message indicates that the SCell is mapped to the secondary PUCCH group; transmitting channel state information of the SCell, other than the PUCCH SCell, on the PCell, when the RRC message indicates that the SCell is mapped to the primary PUCCH group. receiving, by a wireless device, at least one RRC message comprising a plurality of parameters of a plurality of cells grouped into a plurality of physical uplink control channel, PUCCH, groups comprising: a primary PUCCH group comprising a primary cell with a primary PUCCH; and a secondary PUCCH group comprising a PUCCH secondary cell, SCell, with a secondary PUCCH; and a primary PUCCH group comprising a primary cell with a primary PUCCH; and a secondary PUCCH group comprising a PUCCH secondary cell, SCell, with a secondary PUCCH; and wherein: the plurality of parameters comprise configuration parameters for an SCell in the plurality of cells, the SCell is considered to be the PUCCH secondary cell, PUCCH SCell, if PUCCH parameters are present in the configuration parameters; wherein the method is characterised in that: the plurality of parameters comprise configuration parameters for an SCell in the plurality of cells, the SCell is considered to be the PUCCH secondary cell, PUCCH SCell, if PUCCH parameters are present in the configuration parameters; wherein the method is characterised in that: wherein for an SCell, other than the PUCCH SCell, in an RRC message to configure said SCell, presence of an information element, IE, indicates that the SCell is mapped to the secondary PUCCH group, and absence of the IE in the configuration parameters for the SCell in the RRC message indicates that the SCell is mapped to the primary PUCCH group; transmitting channel state information of the SCell, other than the PUCCH SCell, on the PUCCH secondary cell, when the RRC message indicates that the SCell is mapped to the secondary PUCCH group; transmitting channel state information of the SCell, other than the PUCCH SCell, on the PCell, when the RRC message indicates that the SCell is mapped to the primary PUCCH group.