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:
Mar. 26, 2019
Filed:
Feb. 09, 2015
Datang Mobile Communications Equipment Co., Ltd., Beijing, CN;
Xi Wang, Beijing, CN;
Xiaojuan Zhang, Beijing, CN;
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing, CN;
Abstract
A method and device for dual layer beamforming are disclosed to solve the problems of bad beam directivity and poor beamforming effect in current methods for beamforming wherein the method comprises: receiving sounding reference signal (SRS) sent by the terminal wherein the broadband occupied when sending the SRS is divided into a plurality of sub-bands by the terminal; determining the broadband beamforming vector corresponding to the broadband and the sub-band beamforming vector corresponding to each sub-band respectively according to the SRS; determining two polarized-direction beamforming vectors corresponding to each sub-band respectively according to the broadband beamforming vector corresponding to the broadband or the sub-band beamforming vector corresponding to each sub-band; and directed to each sub-band, adopting the two polarized-direction beamforming vectors corresponding to the sub-band for dual layer beamforming. The method for dual layer beamforming of the present application has stronger beam directivity and better beamforming effect.