Path parameter extraction method for millimeter wave 3D MIMO channel

A technology of path parameters and extraction methods, which is applied in the directions of transmission monitoring, advanced technology, and energy consumption reduction, can solve problems such as not fully considering three-dimensional space angles, and achieve reduction of algorithm complexity, improvement of accuracy, and satisfaction of multipath parameters effect of demand

Active Publication Date: 2021-06-04
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Subsequently, Matthalou et al. added the frequency-domain SAGE algorithm to estimate the horizontal departure angle, but still did not fully consider the three-dimensional space angle

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  • Path parameter extraction method for millimeter wave 3D MIMO channel
  • Path parameter extraction method for millimeter wave 3D MIMO channel
  • Path parameter extraction method for millimeter wave 3D MIMO channel

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[0054] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0055] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...

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Abstract

The invention relates to a path parameter extraction method for a millimeter wave 3D MIMO channel, and belongs to the field of communication channel parameter extraction. The method comprises the following steps: S1, acquiring wireless channel measurement data, and integrating the wireless channel measurement data into a channel matrix; S2, adding a vertical dimension of a steering vector in the channel matrix in the step S1, and dividing to-be-estimated path parameters into three parameter subsets, namely propagation time delay, horizontal and vertical angles of a transmitting end and horizontal and vertical angles of a receiving end; S3, performing iterative operation on the channel parameters of each path by adopting a combined search strategy of time delay and three-dimensional space angles, and updating the channel parameters in the current to-be-estimated parameter subset; and S4, based on an extraction result in the step S3, performing multipath clustering characteristic analysis to obtain intra-cluster time delay extension and angle extension characteristics. The method is suitable for millimeter wave 3D MIMO wireless channel parameter extraction, and the accuracy and resolution of sparse multipath channel parameter extraction can be ensured.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a path parameter extraction method for millimeter wave 3D MIMO channels. Background technique [0002] With the rapid growth of wireless smart devices and the further increase of people's demand for high-speed and highly reliable data transmission, it is necessary to solve the shortage of spectrum resources, improve frequency efficiency, energy efficiency and other indicators, and further improve user experience. In terms of key technologies of 5G and B5G, the combination of millimeter wave and three-dimensional multiple-input multiple-output (3D MIMO, three dimensions-multiple-input-multiple-output) technology can greatly improve system transmission rate, spectrum utilization and energy efficiency. The use of millimeter wave and 3D MIMO key technologies brings new channel characteristics to wireless channels, including very high time and space resolution characteris...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/309H04B7/0413
CPCH04B17/309H04B7/0413Y02D30/70
Inventor 廖希黄晨曦王洋车延庭
Owner CHONGQING UNIV OF POSTS & TELECOMM
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