Beamforming method and device
AssigneeNokia Networks Oy
InventorsErnst Bonek, Klaus Hugl
Life of this patent
Estimating the term…
Abstract
A beamforming method and device for adaptive antenna arrays including several antenna elements (1.1. to 1.M) in the downlink of frequency duplex systems, wherein antenna weights (Wk(fS)) are determined for the antenna elements (1.1 to 1.M) for downlink transmission on the basis of directional information of the uplink; in detail, the antenna weights (Wk(fS)) for downlink transmission are determined on the basis of the power angle spectrum (APSk) of the uplink of the individual users (B1 to BK), wherein the power angle spectrum (APSk) is modified by masking out undesired regions.
Claims14
A beamforming method for an adaptive antenna array including several antenna elements in a downlink of frequency duplex systems, the method comprising:
- determining antenna weights for the antenna elements for downlink transmission based on directional information of an uplink and based on a power angle spectrum of the uplink of individual users, and
- modifying the power angle spectrum by masking out undesired regions.
A beamforming device for an adaptive antenna array including several antenna elements in the downlink of frequency duplex systems, the device comprising:
- a signal processing unit configured to determine antenna weights for the antenna elements for downlink transmission based on directional information of an uplink and on power angle spectrum of the uplink of individual users upon modification of the power angle spectrum by masking out undesired regions.
Dependencies are inferred from the claim text.