I-D enhanced channel state information (CSI) procedures have been discussed for a multiple-input multiple-output (FD-MIMO), wherein a user equipment (UE) to a plurality of CSI reference signal (CSI-RS) port configured to are determined . In response to CSI-RS port that includes both horizontal port and vertical port, UE, the first pre-coding from a plurality of precoding matrix composed of the croissant nekkeo the product of the horizontal pre-coding matrix and the vertical pre-coding matrix It may determine the matrix. The UE based on the first precoding pre-selecting a predetermined number of pre-coding vector from the matrix, and precoding on the selected predetermined number of vectors, and generates a wideband precoding matrix. The UE reporting one or more CSI report, and wherein, CSI reports are displayed includes at least a selection of the at least one precoding matrix indicator (PMI) and a predetermined number of pre-coding vectors for the first precoding matrix.