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:
Aug. 12, 2003
Filed:
Nov. 15, 2001
Applicant:
Inventors:
Ernst Bonek, Vienna, AT;
Klaus Hugl, Vienna, AT;
Assignee:
Nokia Networks Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 3/28 ;
U.S. Cl.
CPC ...
G01S 3/28 ;
Abstract
A beamforming method and device for adaptive antenna arrays including several antenna elements ( . to .M) in the downlink of frequency duplex systems, wherein antenna weights (W (f )) are determined for the antenna elements ( to .M) for downlink transmission on the basis of directional information of the uplink; in detail, the antenna weights (W (f )) for downlink transmission are determined on the basis of the power angle spectrum (APS ) of the uplink of the individual users (B to BK), wherein the power angle spectrum (APS ) is modified by masking out undesired regions.