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Beamforming method and device

A beamforming and directional beam technology, applied in diversity/multi-antenna systems, space transmit diversity, electrical components, etc., can solve the problem of small antenna gain at the transmitting end

Active Publication Date: 2019-06-28
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the problem of small antenna gain at the transmitting end, the present invention provides a beamforming method and device

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  • Beamforming method and device

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Embodiment Construction

[0086] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0087] It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: Wideband Code Division Multiple Access (English: Wideband Code Division Multiple Access, referred to as: WCDMA) system, Code Division Multiple Access (English: Code Division Multiple Access) Access 2000; abbreviation: CDMA2000) system, time division synchronous code division multiple access (En...

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Abstract

Disclosed are a beamforming method and device, which fall within the field of wireless communications. The method comprises: determining a channel matrix of first reference signals; adopting a product of a pre-set directional beam weight vector matrix and a directional beam weighting coefficient matrix as a model matrix of beamforming weights; adopting a product of the model matrix of the beamforming weights and a sounding reference signal coefficient matrix HSRS as a channel matrix of data signals; according to the channel matrix of the first reference signals, the channel matrix of the data signals and a pre-set constraint relation between the channel matrix of the first reference signals and the channel matrix of the data signals, determining the model matrix of the beamforming weights meeting the constraint relation as a beamforming weight matrix; and performing beamforming processing on the data signals according to the beamforming weight matrix. The present invention solves the problem that the antenna gain of a transmitting end is smaller, and achieves the effect of obtaining a narrower beam and more concentrated energy and increasing the antenna gain of the transmitting end. The present invention is applied to MIMO systems.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a beam forming method and device. Background technique [0002] Multiple-Input Multiple-Output (English: Multiple-Input Multiple-Output; abbreviation: MIMO) technology uses multiple transmitting antennas and receiving antennas at the transmitting end and receiving end respectively, so that signals are transmitted and received through multiple antennas at the transmitting end and receiving end. , thus improving the communication quality. figure 1 Shows a schematic structural diagram of a MIMO system of 2*2 (that is, 2 inputs and 2 outputs), wherein P0 and P1 are transmitting ports, Trx0 and Trx1 are receiving ports, and the matrix It is the channel matrix of the reference signal (also called the channel transmission matrix), and the channel matrix of the reference signal is used to describe the properties of the channel. The data signal at the transmitting end is m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04W16/28H04B7/04
CPCH04B7/04
Inventor 张鹏程
Owner HUAWEI TECH CO LTD