METHOD AND APPARATUS TO ENABLE SEGMENTED CSI REPORTING IN WIRELESS COMMUNICATION SYSTEMS

摘要

A method for operating a user equipment (UE) for channel state information (CSI) feedback in a wireless communication system is provided. The method comprises receiving, from a base station (BS), CSI reference signals (CSI-RSs) and CSI feedback configuration information, estimating a channel based on the received CSI-RSs, determining, based on the estimated channel and the CSI feedback configuration information, a number of non-zero coefficients (KlNZ) for each layer (l) of a total number of υ layers, wherein υ≥1 is a rank value, and a sum of the KlNZ across each of the υ layers as a total number of non-zero coefficients (KNZ), where KNZ=ΣL=1υ KLNZ. The method further comprises transmitting, to the BS, the CSI feedback including the KNZ value over an uplink (UL) channel.