Patent ID: 8976751
Filing Date: 2015-03-10
Classification: H04B,H04L,H04W

Abstract:
1. A method for performing channel state information (CSI) reporting in a wireless communication system, the method comprising: receiving CSI configuration information for a plurality of cells, wherein the CSI configuration information is used to perform a periodic CSI report for each cell; receiving information requesting an aperiodic CSI report for a first cell; and transmitting a periodic CSI report for a second cell different from the first cell with the aperiodic CSI report for the first cell in a corresponding subframe, wherein, if a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH) are transmitted in the corresponding subframe simultaneously, the periodic CSI report for the second cell is transmitted via the PUCCH and the aperiodic CSI report for the first cell is transmitted via the PUSCH in the corresponding subframe, and wherein, if the PUCCH and the PUSCH are not transmitted in the corresponding subframe simultaneously, the periodic CSI report for the second cell is piggybacked on the PUSCH and the periodic CSI report for the second cell and the aperiodic CSI report for the first cell are transmitted via the PUSCH in the corresponding subframe.