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Channel prediction method based on matrix pencil

A technology of channel prediction and matrix beam, which is applied in the field of channel prediction based on matrix beam, can solve problems such as difficult acquisition of CSI, achieve the effect of improving channel prediction accuracy and overcoming adverse effects

Active Publication Date: 2022-07-01
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004]Aiming at the above defects or improvement needs of the prior art, the present invention provides a channel prediction method based on matrix beams, which can effectively alleviate the problems in time domain and frequency domain The Doppler effect of the channel solves the problem that CSI is difficult to obtain in motion scenes, overcomes the adverse effects of CSI outdated, and realizes effective communication in wireless communication systems

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  • Channel prediction method based on matrix pencil
  • Channel prediction method based on matrix pencil
  • Channel prediction method based on matrix pencil

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Embodiment Construction

[0053] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] First, the channel response forms of the BS end and the UE end proposed by 3GPP are introduced.

[0055] The channel response form of BS and UE proposed by 3GPP is as follows:

[0056] At time t, when the frequency is f, the sth v row and s h The channel between the antenna of the column and the u-th antenna at the UE side is expressed as:

[0057]

[0058] where P and β p represent t...

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Abstract

The invention discloses a channel prediction method based on a matrix bundle, which considers the actual problem of multipath time delay change caused by user side movement, and obtains the rule of time delay change by constructing a three-dimensional matrix bundle and estimating time delays at different moments aiming at the time-varying characteristic of a channel, especially the influence of the time delay change on the channel. According to the method, a multi-path azimuth angle, a pitch angle, time-varying delay and Doppler parameters are respectively estimated based on a matrix pencil super-resolution method, and a channel is reconstructed based on the estimated channel parameters, so that the adverse effect of outdated channel state information (CSI) on communication can be effectively overcome, and accurate prediction of a future time-varying channel is realized.

Description

technical field [0001] The present invention belongs to the field of wireless communication, and more particularly, relates to a channel prediction method based on matrix beams. Background technique [0002] In recent years, mobile communication technology has developed rapidly. Compared with 4G, 5G mobile communication system has higher spectral efficiency and peak rate, can meet the data transmission needs of a large number of end users, and can achieve high-speed, high-reliability, and low-latency information transmission. One of the key technologies of 5G is massive multiple-input multiple-output (massive MIMO) technology. Compared with the traditional MIMO technology, massive MIMO is configured with more antenna panels and antenna arrays at the base station (BS), which can fully exploit the freedom of space and has significant advantages, such as: improving the capacity of wireless communication systems , data transfer rate, spectral efficiency and energy efficiency. ...

Claims

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Application Information

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IPC IPC(8): H04B17/373H04B17/364H04B7/0456H04B7/06
CPCH04B17/373H04B17/364H04B7/0456H04B7/0626
Inventor 尹海帆李伟东
Owner HUAZHONG UNIV OF SCI & TECH
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