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:
Oct. 29, 2019
Filed:
Jun. 18, 2018
Huawei Technologies Co., Ltd., Shenzhen, Guangdong, CN;
Peng Zhang, Shanghai, CN;
Yueying Zhao, Shanghai, CN;
Zongjie Wang, Shanghai, CN;
Xiaolei Tie, Shanghai, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
Embodiments of the present disclosure disclose a channel quality indicator (CQI) feedback method, user equipment, and a network device. The method includes: receiving, by the user equipment, a secondary pilot receive signal of each single sector and that is obtained after a secondary pilot transmit signal of each single sector transmitted by a network device is transmitted by using a radio channel; estimating, by the user equipment, a channel matrix according to the secondary pilot receive signal of each single sector and the pre-known secondary pilot transmit signal of each single sector; estimating, by the user equipment, a CQI of each single sector according to the channel matrix and a first precoding matrix, and estimating a CQI of each joint sector according to the channel matrix and a second precoding matrix; and feeding back, by the user equipment, each CQI to the network device.