METHODS AND APPARATUS FOR CHANNEL ESTIMATION AND PRECODING WITH INCOMPLETE CHANNEL OBSERVATION AND CHANNEL STATE INFORMATION FEEDBACK

摘要

A method implemented by a node includes estimating first downlink (DL) channel information of first DL channels in accordance with reference signals received on first uplink (UL) channels, the first UL channels being a subset of available UL channels, and the first DL channels corresponding to the first UL channels; receiving channel feedback for a set of DL channels; estimating second DL channel information in accordance with the estimated first DL channel information and the received channel feedback; and communicating in accordance with the second DL channel information.