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:
Jun. 20, 2017
Filed:
Dec. 17, 2010
Yang HU, Beijing, CN;
David Astely, Bromma, SE;
Zhiheng Guo, Beijing, CN;
Muhammad Imadur Rahman, Sollentuna, SE;
Hai Wang, Beijing, CN;
Ruiqi Zhang, Beijing, CN;
Yang Hu, Beijing, CN;
David Astely, Bromma, SE;
Zhiheng Guo, Beijing, CN;
Muhammad Imadur Rahman, Sollentuna, SE;
Hai Wang, Beijing, CN;
Ruiqi Zhang, Beijing, CN;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
The invention discloses a beamforming method for polarized antenna array consisting of a plurality of antenna elements, applied to single layer beamforming or dual layer beamforming, which includes the steps: determining () first beamforming weights for phase compensation among the antenna elements within each polarization direction; determining () second beamforming weights for phase compensation between equivalent channels of two polarization directions; and calculating () hybrid beamforming weights as product of the first beamforming weights and the second beamforming weights. A beamforming apparatus for polarized antenna array is also provided in the invention as well as a radio communication device and a system thereof. With the invention, the single-layer and dual-layer beamforming weights are determined for the cross-polarized antenna array without requiring full channel knowledge or the aid of PMI. Computation complexity is lowered and full power amplifier utilization can be achieved.