A method for selecting highest priority channel state information, CSI, report for each component carrier on a user equipment, UE, comprising: receiving multiple CSI reporting configurations for multiple periodic CSI reporting of a single component carrier, where each of the multiple CSI reporting configurations is configured with its own different respective configuration index; generating each CSI report of the single component carrier based on each of the multiple CSI reporting configurations with its own different respective configuration index so that the multiple CSI reports are generated and including CSI of the single component carrier, each of the multiple CSI reports being generated based on a respective channel state information reference signal, CSI-RS, received on the single component carrier: transmitting a coded UCI that includes at least the highest priority CSI report generated: and in case of a collision among the multiple periodic CSI reports of the same single component carrier to be transmitted in a subframe, selecting, within the same single component carrier, the highest priority CSI report to be transmitted among the multiple periodic CSI reports of the same single component carrier based on priorities of the multiple periodic CSI reports, wherein in the selecting step, CSI reports of Physical Uplink Control Channel, PUCCH reporting types of lower priority of the multiple periodic CSI reports of the same single component carrier are dropped, and in case of collision among CSI reports with PUCCH reporting type of the same priority of the multiple periodic CSI reports of the same single component carrier, all CSI reports of the multiple periodic CSI reports except the CSI report with a lowest configuration index are dropped. receiving multiple CSI reporting configurations for multiple periodic CSI reporting of a single component carrier, where each of the multiple CSI reporting configurations is configured with its own different respective configuration index; generating each CSI report of the single component carrier based on each of the multiple CSI reporting configurations with its own different respective configuration index so that the multiple CSI reports are generated and including CSI of the single component carrier, each of the multiple CSI reports being generated based on a respective channel state information reference signal, CSI-RS, received on the single component carrier: transmitting a coded UCI that includes at least the highest priority CSI report generated: and in case of a collision among the multiple periodic CSI reports of the same single component carrier to be transmitted in a subframe, selecting, within the same single component carrier, the highest priority CSI report to be transmitted among the multiple periodic CSI reports of the same single component carrier based on priorities of the multiple periodic CSI reports, wherein in the selecting step, CSI reports of Physical Uplink Control Channel, PUCCH reporting types of lower priority of the multiple periodic CSI reports of the same single component carrier are dropped, and in case of collision among CSI reports with PUCCH reporting type of the same priority of the multiple periodic CSI reports of the same single component carrier, all CSI reports of the multiple periodic CSI reports except the CSI report with a lowest configuration index are dropped. transmitting a coded UCI that includes at least the highest priority CSI report generated: and in case of a collision among the multiple periodic CSI reports of the same single component carrier to be transmitted in a subframe, selecting, within the same single component carrier, the highest priority CSI report to be transmitted among the multiple periodic CSI reports of the same single component carrier based on priorities of the multiple periodic CSI reports, wherein in the selecting step, CSI reports of Physical Uplink Control Channel, PUCCH reporting types of lower priority of the multiple periodic CSI reports of the same single component carrier are dropped, and in case of collision among CSI reports with PUCCH reporting type of the same priority of the multiple periodic CSI reports of the same single component carrier, all CSI reports of the multiple periodic CSI reports except the CSI report with a lowest configuration index are dropped.