公开(公告)号：US20240178896A1

公开(公告)日：2024-05-30

申请号：US18508148

申请日：2023-11-13

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Jiann-Ching Guey ,  Tzu-Han Chou ,  CHIN-KUO JAO

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0639

Abstract: Method and user equipment (UE) are provided for CSI compression based on multi-dimensional MIO RF signature. In one novel aspect, the UE receives CSI-RS, estimates a basis matrix and a coefficient matrix of a downlink channel matrix based on the at least one CSI-RS, wherein the basis matrix is an N-dimensional non-orthogonal matrix, with N greater than two, and the coefficient matrix is a linear combination coefficient matrix for the basis matrix, and transmits to the network at least one feedback comprising feeding back the basis matrix in a first periodicity and feeding back the coefficient matrix in a second periodicity. In one embodiment, the UE compresses the basis matrix and the coefficient matrix to a feedback basis matrix and a feedback coefficient matrix before transmitting.