公开(公告)号：US20160365913A1

公开(公告)日：2016-12-15

申请号：US15242207

申请日：2016-08-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： KinNang LAU ,  Xiongbin RAO ,  Rongdao YU

IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04L1/0026 ,  H04L1/0029 ,  H04L5/0048

Abstract: Embodiments of the present invention provide a channel state information (CSI) feedback method and apparatus, user equipment, and a base station. The method, performed by a user equipment device, includes: pre-synchronizing, between the user equipment device and a base station, a basis matrix that includes sparsity of CSI in a frequency domain and a space domain; receiving pilot information from the base station; determining, according to the pilot information, a CSI information matrix that includes information about the frequency domain and the space domain of CSI; determining data by using the CSI information matrix; and feeding back the data to the base station, so that the base station restores the corresponding CSI information from the data by using the basis matrix.

Abstract translation: 本发明的实施例提供了一种信道状态信息（CSI）反馈方法和装置，用户设备和基站。 由用户设备设备执行的方法包括：在用户设备设备和基站之间预同步包括频域和空域中的CSI的稀疏性的基本矩阵; 从基站接收导频信息; 根据导频信息，确定CSI信息矩阵，其包括关于CSI的频域和空域的信息; 通过使用CSI信息矩阵来确定数据; 并将数据反馈给基站，使得基站通过使用基本矩阵从数据中恢复对应的CSI信息。