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Method, model and system of large-scale mimo communication for sky wave

A communication method and technology of sky-wave communication base stations, applied in the field of sky-wave communication methods and systems, can solve problems such as improving the rate performance of few systems, achieve sufficient and accurate statistical channel information, improve spectrum and power efficiency, and improve system performance.

Active Publication Date: 2021-10-26
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

But most of them are point-to-point MIMO, and only a small improvement in system rate performance can be obtained

Method used

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  • Method, model and system of large-scale mimo communication for sky wave
  • Method, model and system of large-scale mimo communication for sky wave
  • Method, model and system of large-scale mimo communication for sky wave

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Embodiment Construction

[0054] The technical solutions provided by the present invention will be described in detail below in conjunction with specific examples. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. The method of the invention is mainly applicable to a sky-wave massive MIMO (Multiple Input Multiple Output) communication system in which a base station is equipped with a large-scale antenna array to simultaneously serve a large number of single-antenna user terminals. The specific implementation process of the sky-wave massive MIMO communication method and system of the present invention will be described in detail below in conjunction with specific communication system examples. It should be noted that the method of the present invention is not only applicable to the specific system models listed in the following examples, but also applicable to other Configured...

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Abstract

The invention discloses a sky wave massive MIMO communication method, model and system. A large-scale antenna array is used to build a sky-wave communication base station in the short-wave band, and perform sky-wave massive MIMO communication with user terminals in the coverage area through ionospheric reflection. The sky wave communication base station determines the antenna array spacing according to the highest operating frequency, uses TDD to communicate with user terminals, and uses OFDM or its power efficiency improved modulation method for signal transmission. According to the real-time ionospheric channel characteristics, the sky wave communication base station selects the carrier frequency within the short wave band range, and adaptively selects OFDM modulation parameters and signal frame structure. The Skywave communication base station uses the channel information of each user terminal to perform user scheduling to form a space division user group. Different user groups use different time-frequency resources, and the same user group uses the same time-frequency resource to communicate with the Skywave communication base station. The invention can greatly improve the frequency spectrum and power efficiency, transmission bandwidth and distance, as well as speed and terminal capacity of sky wave communication.

Description

technical field [0001] The invention belongs to the field of sky-wave communication, and in particular relates to a sky-wave communication method and system utilizing a large-scale MIMO (multiple-input multiple-output) antenna array in a short-wave band. Background technique [0002] In order to meet the application requirements of future wireless communication for global coverage, satellite communication is considered as an attractive candidate technology that can meet this requirement, and has become a research hotspot in both academia and industry. The use of sky-wave communication in the short-wave band can achieve thousands of kilometers of beyond-the-line-of-sight communication, thereby meeting the global coverage requirements of future wireless communication systems. The sky-wave communication system does not require expensive infrastructure, but it only occupies very limited spectrum resources, and its transmission relies on time-varying multipath ionospheric channel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04B7/0456H04B17/391H04L27/26H04W88/08
CPCH04B7/0413H04B7/0456H04B17/391H04L27/2601H04L27/2602H04W88/08Y02D30/70H04B7/22H04L27/2646H04L5/0023H04L5/0037H04L5/006H04B17/345H04B17/3912
Inventor 高西奇于祥龙卢安安
Owner SOUTHEAST UNIV
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