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Down wave beam shaping method and device of radio channel

A beamforming method and beamforming technology, applied to antennas, transmission control/equalization, communication between multiple stations, etc., can solve the problem that beamforming is not as good as non-shaping, and that downlink beams cannot be realized effectively and reliably Formatting and other issues

Active Publication Date: 2005-08-24
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

In this case, the common smart antenna forming algorithm cannot effectively and reliably realize the downlink beamforming, and even the beamforming is not as good as no beamforming

Method used

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  • Down wave beam shaping method and device of radio channel
  • Down wave beam shaping method and device of radio channel
  • Down wave beam shaping method and device of radio channel

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Embodiment Construction

[0045] In order to make it easier for those skilled in the art to implement and understand the present invention, the methods and devices of the present invention are described below through embodiments with reference to the accompanying drawings.

[0046] figure 1 Shown is a schematic diagram of a complex wireless channel downlink beamforming device according to an embodiment of the present invention.

[0047] Including the following parts:

[0048] Ka antenna elements 1-1-1-Ka. The radiation characteristic of the antenna unit satisfies the cell coverage. Examples include omnidirectional antenna units for omnidirectional cells and sector antenna units covering multi-sector systems. In the uplink, the antenna unit receives space electromagnetic signals, including the signals of all users in the cell (including data and training sequences), interference signals from other cells, and various noise signals in the space; in the downlink, the downlink signals of each user are tr...

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Abstract

This invention discloses an exciping method of down beam of wireless channel and the device. The method includes the following processes: estimate the channels of the antenna, estimate the user's space parameter according to the channel's estimation, estimate beam weight vector according to the space parameter's estimation, control the beam exciping according to the weight vector estimation. The device includes: several receiving and sending channel estimation devices to output the channel estimation; the relative devices to relate the several receiving and sending channel estimation; channel parameter estimation device to get the channel parameter estimation according to the relative results; the beam exciping device to excipe the beam according to the channel parameter estimation.

Description

technical field [0001] The present invention relates to mobile communication, in particular to a downlink beamforming method and device for wireless channels. Background technique [0002] In mobile communication systems, the research and application of smart antenna technology has been paid more and more attention. The smart antenna uses digital signal processing technology to generate spatially directional beams, so that the main beam of the antenna is aligned with the direction of arrival of user signals, and the side lobes or nulls are aligned with the direction of arrival of interference signals, so as to achieve the purpose of fully and efficiently utilizing mobile user signals and suppressing interference signals . The use of smart antennas can maximize the useful signal and minimize the interference signal, thus greatly improving the system capacity and expanding the coverage of the system. The application of smart antennas in cellular mobile communications mainly ...

Claims

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Application Information

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IPC IPC(8): H01Q3/26H04B7/005H04B7/26
Inventor 杨贵亮孙长果王映民
Owner DATANG MOBILE COMM EQUIP CO LTD
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