Patent ID: 8681627

Claim:
A method for reporting a channel state information (CSI) from a user equipment (UE) to a base station (eNodeB), wherein the method is performed by the UE, the method comprising: determining a highest priority CSI report of multiple CSI reports for multiple cells that are scheduled to be transmitted in a subframe based on a prioritization rule, wherein the prioritization rule is such that physical uplink control channel (PUCCH) report type 3 , 5 or 6 is prioritized over PUCCH report type 2 , 2 b , 2 c or 4 and PUCCH report type 2 , 2 b , 2 c or 4 is prioritized over PUCCH report type 1 or 1 a , wherein PUCCH report type 3 supports rank indication (RI), PUCCH report type 5 supports RI and first precoding matrix indicator (PMI), PUCCH report type 6 supports RI and precoder type indication (PTI), PUCCH report type 2 supports wideband channel quality indicator (CQI) and wideband PMI, PUCCH report type 2 b supports wideband CQI, and second PMI, PUCCH report type 2 c supports wideband CQI, first PMI, and second PMI, PUCCH report type 4 supports wideband CQI, PUCCH report type 1 supports Sub-band CQI, and PUCCH report type 1 a supports Sub-band CQI and second PMI; and transmitting the highest priority CSI report.