19013788. CHANNEL INFORMATION FEEDBACK METHOD AND COMMUNICATION APPARATUS (Huawei Technologies Co., Ltd.)

CHANNEL INFORMATION FEEDBACK METHOD AND COMMUNICATION APPARATUS

Organization Name

Huawei Technologies Co., Ltd.

Inventor(s)

Jie Wang of Shanghai CN

Li Fan of Shanghai CN

Shibin Ge of Shanghai CN

Hui Wang of Shanghai CN

Zhimeng Zhong of Moscow RU

Xiaoyan Bi of Shanghai CN

CHANNEL INFORMATION FEEDBACK METHOD AND COMMUNICATION APPARATUS

This abstract first appeared for US patent application 19013788 titled 'CHANNEL INFORMATION FEEDBACK METHOD AND COMMUNICATION APPARATUS

Original Abstract Submitted

This application provides a channel state information (CSI) feedback method including: a communication apparatus receives first indication information, wherein the first indication information is determined based on a received precoded reference signal corresponds to P reference signal ports; the first indication information indicates B complex coefficients determined from K complex coefficients according to a preset priority value, the K complex coefficients are determined from a complex coefficient set comprising U complex coefficients that are determined for an sreference signal port in S reference signal ports at each transport layer of Z transport layers, the S reference signal ports are a part or all of the P reference signal ports, the U complex coefficients are a part or all of Tcomplex coefficients corresponding to the sreference signal port; and determines a precoding matrix based on the first indication information.