Method and apparatus for generating a channel state information report using an oversampling factor for a subset of the set of beams

A user equipment for generating a channel state information report, the user equipment comprising:

• a transceiver that receives a set of reference signals transmitted from a base station;
• and
• a controller that identifies a set of beams based on the set of reference signals;
• wherein the controller transforms the set of reference signals to obtain a set of vectors of amplitude and phase coefficients of a compressed codebook, each amplitude coefficient vector and phase coefficient vector corresponding to an identified beam in the set of beams;
• wherein the amplitude coefficient vector for each identified beam in the set of beams is adjusted by the controller by a selected value, wherein the selected value is determined such that the amplitude coefficient vector corresponding to a particular beam is normalized to a known predetermined value;
• wherein the controller sets a predefined oversampling factor to a subset of the set of beams to a value greater than one, wherein the particular beam is excluded from the subset of beams;
• wherein the controller generates a fractional part of the predefined oversampling factor of the subset of beams wherein the fractional part is based on the value of the predefined oversampling factor of the subset of beams;
• and
• wherein the transceiver reports an indication of the fractional part of the predefined oversampling factor as a part of the channel state information report.