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:
Feb. 01, 2022
Filed:
Feb. 27, 2017
China Academy of Telecommunicatiions Technology, Beijing, CN;
Qiubin Gao, Beijing, CN;
Shanzhi Chen, Beijing, CN;
Wenhong Chen, Beijing, CN;
Runhua Chen, Beijing, CN;
Hui Li, Beijing, CN;
Rakesh Tamrakar, Beijing, CN;
Shaohui Sun, Beijing, CN;
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing, CN;
Abstract
A data transmission method and a data transmission device are provided. The data transmission method includes steps of: determining, by a transmitting end, a first precoding matrix and a second precoding matrix, the first precoding matrix being selected from a predefined first codebook, the second precoding matrix being acquired on the basis of CSI; performing, by the transmitting end, precoding processing on a data stream in accordance with the first precoding matrix and the second precoding matrix; and transmitting, by the transmitting end, the data streamed acquired after the precoding processing to a receiving end.