A method and apparatus is provided for generating a channel state information report. The method includes receiving reference signals transmitted from a base station. A set of beams are selected based on the received reference signals, each of the beams corresponding to a discrete Fourier transform vector, wherein each of the beams has a corresponding beam index. A set of quantized weighting coefficients are reported, each of the weighting coefficients corresponding to a respective beam index and a respective tap index. The tap index corresponds to a member of a Fourier basis set. At least two subsets of the reported set of weighting coefficients are quantized according to separate quantization procedures.