Apparatus and method in a wireless network for periodically reporting channel status

Information (CSI) to the base station reporting channel state by a user station. For at least two physical uplink control channel (PUCCH) periodically reported CSI. In the first report for the case of the PUCCH for the second collision between the PUCCH report of each report type is divided into a plurality of classes, said plurality of classes comprises: a first type, with related to the rank indicator report type and wideband (WB) W1 report type; second, for the type of report or WB WB channel quality indicator report type; and a third class, the type or types of reports a subband report W1 . Priority rule is assigned to each priority class. Transmitting the CSI feedback report based on priority rules, so that the types of reports are transmitted at a higher class and type of report contained in the lower class are discarded.