A channel tracking method and device

A channel and channel matrix technology, applied in the field of channel tracking methods and devices, can solve the problems of channel tracking method errors and inaccuracy

Active Publication Date: 2020-09-11
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing channel tracking methods are generally aimed at mobile communication systems where the antenna array is a uniform linear array. array, so if the actual channel tracking method is applied to millimeter-wave massive MIMO technology, there will be large errors and it is not accurate enough

Method used

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  • A channel tracking method and device
  • A channel tracking method and device
  • A channel tracking method and device

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Embodiment Construction

[0083] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0084] It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used as examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exempla...

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Abstract

Embodiments of the invention provide a channel tracking method and device, and relates to the field of communication channel processing. The method and system can perform channel tracking on communication systems provided with uniform rectangular arrays. The method includes obtaining an initial emission horizontal angle, an initial emission pitch angle, an initial receiving horizontal angle, an initial receiving pitch angle and preset gain information; calculating the desired value of a channel matrix of a current time block on the basis of a preset channel matrix formula and channel time-varying formula according to the obtained information; calculating the estimated values of a horizontal and vertical array of the current time block according to the obtained information, a preset angle time-varying formula and the preset channel matrix formula; obtaining the optimal value of the horizontal and vertical array of the current time block on the basis of a matrix decomposition algorithm according to the estimated values of the horizontal and vertical array of the current time block and the desired value of the channel matrix of the current time block; and calculating the optimal valueof the channel matrix of the current time block according to the optimal value of the horizontal and vertical array of the current time block.

Description

Technical field [0001] The invention relates to the field of communication channel processing, in particular to a channel tracking method and device. Background technique [0002] With the vigorous development of global wireless communication technology and Internet technology, the number of mobile users has exploded, and various new mobile services continue to emerge. The future 5G mobile communication system not only needs to support voice functions, but also must support data transmission such as digital, image, multimedia, etc., in terms of transmission efficiency and coverage, it is one or more orders of magnitude higher than 4G to meet the 1000 times increase in mobile Internet traffic within 10 years Development needs. The millimeter wave frequency band (30-300GHz) has abundant spectrum resources. The combination of millimeter wave and large-scale multiple input multiple output (MIMO) can bring huge spatial gain, energy efficiency and spectral efficiency. Millimeter wave ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04L25/02
CPCH04B7/0413H04L25/0242
Inventor 韩潇延凯悦冯毅刘海艳张天魁
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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