Precoded reference signal for model monitoring for ml-based csi feedback

Abstract

A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, the UE receives a precoded pilot signal from a network entity. The precoded pilot signal includes a pilot signal that is precoded with a precoder based on a machine-learning (ML) model. The UE further reports an ML model performance monitoring result, including a comparison between the target channel estimation and the reconstructed channel estimation for a channel between the UE and the network entity based on the precoded pilot signal. The target channel estimation may be based on a target channel station information (CSI). The method allows the UE to monitor the performance of an ML model without the overhead of conveying the target CSI to the network entity. Hence, it improves the efficiency and reliability of wireless communication.

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