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. 30, 2017
Filed:
Dec. 18, 2015
Applicant:
Ntt Docomo, Inc., Tokyo, JP;
Inventors:
Assignee:
NTT DoCoMo, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/06 (2006.01); H04B 7/0456 (2017.01);
U.S. Cl.
CPC ...
H04B 7/0686 (2013.01); H04B 7/0456 (2013.01); H04B 7/0617 (2013.01); H04B 7/0671 (2013.01);
Abstract
The present disclosure provides a method and apparatus for transmitting a common signal in hybrid beamforming. The method includes: acquiring an analog common signal to be transmitted; selecting a different codeword for each RF chain from a codebook for analog beamforming and obtaining an analog beamformer; beamforming the analog common signal to be transmitted in each RF chain according to the analog beamformer; and transmitting the beamformed analog common signal in each RF chain.