Patent ID: 10056956

Abstract:
A method for a channel state information (CSI) feedback in an advanced communication system. The method comprises receiving, from a base station (BS), CSI feedback configuration information for a precoding matrix indicator (PMI) feedback using a higher layer signaling, wherein the CSI feedback configuration information includes a combination of an oversampling factor (O1, O2) and a dual polarized CSI reference signal (CSI-RS) antenna port layout (N1, N2), and wherein subscripts 1 and 2 stand for a first dimension and a second dimension, respectively, and a number of dual polarized CSI-RS ports P=2N1N2. The method further comprises determining, by a user equipment (UE), the PMI using a Class A codebook and the configured combination of the (O1, O2) and (N1, N2) and transmitting, to the BS, the CSI feedback over an uplink channel including the determined PMI.