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:
Dec. 07, 2021
Filed:
Jul. 24, 2019
Huawei Technologies Co., Ltd., Shenzhen, CN;
Lu Rong, Shanghai, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A codebook feedback method and an apparatus. In the method, antenna ports corresponding to first-type reference signals of a cell in which a user equipment (UE) is located are grouped into at least two antenna port groups, and each antenna port group includes at least one antenna port, and the method includes receiving, by the UE, a first-type reference signal that is corresponding to a target antenna port group and that is sent by a base station, where the target antenna port group is an antenna port group in the at least two antenna port groups, obtaining, by the UE, precoding matrix indicator (PMI) information of the first-type reference signal corresponding to the target antenna port group and sending, by the UE, the PMI information to the base station.