US 11,121,788 B1 · Channel prediction method and system for MIMO wireless communication system

Abstract

The disclosure discloses a channel prediction method and system for a MIMO wireless communication system. The method includes the following steps: obtaining frequency domain channel information of each antenna pair of the MIMO wireless communication system through channel estimation; processing, by inverse Fourier transform, frequency domain channel information of each antenna pair to obtain information of each effective delay path of the MIMO wireless communication system; training the width learning system; utilizing the trained width learning system to predict each effective delay path of each antenna pair, so as to obtain the information of the next moment of each effective delay path of each antenna pair; after summarizing the information of the next moment of each effective delay path of each antenna pair obtained through prediction, the Fourier transform is utilized to convert the information into predicted frequency domain channel information. The invention can provide satisfactory prediction performance.

Claims9

Dependent claims

A channel prediction method for multiple-input and multiple-output (MIMO) wireless communication system, wherein the method comprises the following steps:

obtaining frequency domain channel information of each of antenna pairs in the MIMO wireless communication system through channel estimation;
processing the frequency domain channel information of each of the antenna pairs by inverse Fourier transform to obtain information of each of effective delay paths of the MIMO wireless communication system;
utilizing a loss function of a width learning system and a coordinate descent method to solve an output weight of the width learning system to obtain the trained width learning system;
utilizing the trained width learning system to predict each of the effective delay paths of each of the antenna pairs, so as to obtain information of a next moment of each of the effective delay paths of each of the antenna pairs;
after summarizing the information of the next moment of each of the effective delay paths of each of the antenna pairs obtained through prediction, performing the Fourier transform to convert the above information into predicted frequency domain channel information.

2 more elements

A channel prediction system suitable for MIMO wireless communication system, wherein the system comprises:

a frequency domain channel estimation module, configured to obtain frequency domain channel information of each of antenna pairs of the MIMO wireless communication system through channel estimation;
an effective delay path information acquisition module, configured to process the frequency domain channel information of each of the antenna pairs through inverse Fourier transform to obtain information of each of effective delay paths of the MIMO wireless communication system;
an initialization width learning system module, configured to train a width learning system;
a loss function calculation module, configured to calculate loss function;
an effective delay path information prediction module, configured to predict each of the effective delay paths of each of the antenna pairs according to the trained width learning system, and obtain information of a next moment of each of the effective delay paths of each of the antenna pairs;
a frequency domain channel information processing module, configured for summarizing the information of the next moment of each of the effective delay paths of each of the antenna pairs obtained through prediction, and then convert the information into the predicted frequency domain channel information by using the Fourier transform.

3 more elements

Dependencies are inferred from the claim text.

Channel prediction method and system for MIMO wireless communication system

Life of this patent

Channel prediction method and system for MIMO wireless communication system

Life of this patent

Abstract

Claims9