The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2019
Filed:
Aug. 19, 2016
Huawei Technologies Co., Ltd., Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
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 the 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.