Techniques for channel state information (CSI) pre-processing

Techniques for channel state information (CSI) preprocessing. Techniques related to channel state information (CSI) pre-processing are described. A user equipment (UE) in wireless communication with a base station node extracts an eigenvector (EV) from CSI acquired by the UE. The UE generates a pre-processed CSI for compression by a machine learning (ML)-based encoder of the UE into CSI feedback for a base station node by at least performing one or more of phase discontinuity compensation (PDC), one-step polarization separation with reordering, or two-step polarization separation on the EV, the two-step polarization separation comprises separation based on polarization types and separation according to positions. 用于信道状态信息(CSI)预处理的技术。描述了与信道状态信息(CSI)预处理有关的技术。与基站节点进行无线通信的用户设备(UE)从UE获取的CSI中提取本征向量(EV)。UE至少通过对所述EV执行相位不连续补偿(PDC)、具有重新排序的一步偏振分离、或两步偏振分离中的一项或多项来生成经预处理的CSI，以供UE的基于机器学习(ML)的编码器压缩成针对基站节点的CSI反馈，其中，所述两步偏振分离包括基于偏振类型的分离和按位置分离。