Invention Publication
EP2652885A1 BEAMFORMING METHOD, APPARATUS FOR POLARIZED ANTENNA ARRAY AND RADIO COMMUNICATION DEVICE AND SYSTEM THEREOF
审中-公开
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
- Patent Title: BEAMFORMING METHOD, APPARATUS FOR POLARIZED ANTENNA ARRAY AND RADIO COMMUNICATION DEVICE AND SYSTEM THEREOF
- Patent Title (中): R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
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Application No.: EP10860863.9Application Date: 2010-12-17
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Publication No.: EP2652885A1Publication Date: 2013-10-23
- Inventor: HU, Yang , ASTELY, David , GUO, Zhiheng , RAHMAN, Muhammad Imadur , WANG, Hai , ZHANG, Ruiqi
- Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
- Applicant Address: 164 83 Stockholm SE
- Assignee: Telefonaktiebolaget L M Ericsson (PUBL)
- Current Assignee: Telefonaktiebolaget L M Ericsson (PUBL)
- Current Assignee Address: 164 83 Stockholm SE
- Agency: Althoff, Fredrik
- International Announcement: WO2012079202 20120621
- Main IPC: H04B7/10
- IPC: H04B7/10
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 (201) first beamforming weights for phase compensation among the antenna elements within each polarization direction; determining (202) second beamforming weights for phase compensation between equivalent channels of two polarization directions; and calculating (203) 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.
Public/Granted literature
- EP2652885B1 BEAMFORMING METHOD, APPARATUS FOR POLARIZED ANTENNA ARRAY AND RADIO COMMUNICATION DEVICE AND SYSTEM THEREOF Public/Granted day:2019-02-20
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