Mobile switching method and system for low-orbit communication satellite constellation

A communication satellite, satellite technology, applied in the field of satellite communication, can solve the problems of communication quality degradation, call blocking, waste of resources, etc., to achieve the effects of low energy consumption, reduced switching times, and improved success rate

Active Publication Date: 2021-04-13
中国星网网络应用有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because low-orbit satellites move very fast, usually higher than 7km/s, and low-orbit satellite constellations have a highly dynamic topology, the visibility time for ground terminals is usually only 10 minutes, requiring frequent switching, which is

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  • Mobile switching method and system for low-orbit communication satellite constellation
  • Mobile switching method and system for low-orbit communication satellite constellation
  • Mobile switching method and system for low-orbit communication satellite constellation

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Embodiment Construction

[0023]Embodiments of the present invention will be described in detail below, and examples of the embodiments are illustrated in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions. The following is exemplary, and is intended to be used herein, not to be construed as limiting the invention.

[0024]In the description of the invention, it is necessary to explain, unless otherwise specified and defined, the term "mount", "connected", "connection" should be used to understand, for example, can be mechanically connected or electrically connected, or two The communication inside the element may be directly connected, or by indirect connection through an intermediate medium, and for those skilled in the art, the specific meaning of the above terms can be understood according to the specific case.

[0025]Such asfigure 2 As shown, the present invention provides a mobile switching method of a low rai...

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Abstract

The invention provides a mobile switching method and system for a low-orbit communication satellite constellation, and the method specifically comprises the steps: firstly, entering a switching process when the quality of a currently connected satellite link is lower than a threshold value, and sequentially selecting the satellite links according to the quality of the satellite links; secondly, judging whether the on-board capacity load can meet user communication requirements or not; and finally, judging whether the remaining visible time of the satellite meets the threshold requirement or not, and avoiding the problem of frequent ping-pong switching. The method is flexible and reliable, engineering implementation is simple, the success rate of switching of the terminal between beams and satellites is effectively improved, the switching frequency is reduced, and the user communication quality and the service experience can be improved.

Description

Technical field[0001]The present invention relates to the field of satellite communications, and more particularly to a mobile switching method and system for low rail communication satellite constellation.Background technique[0002]Since the low-track satellite constellation has a wide range of coverage, delay, low power consumption, and high destruction, the satellite Internet system consisting of low rail communication satellite is an important part of the integrated mobile communication network in the future.[0003]Such asfigure 1 As shown, in order to ensure the quality of service, the low rail communication satellite constellation usually forms multiple coverage on the ground, so the ground terminal may enter multiple low-track satellite coverage. Since the low-track satellite movement is very fast, it is usually higher than 7km / s, and the low-track satellite constellation has a high dynamic topology. For the ground terminal, the visual time is usually only 10 minutes, and it ...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18519
Inventor 张翔雷继兆李梦男严叶舟杨洋赵航宋耀廷汤东兴孙应兵徐照博
Owner 中国星网网络应用有限公司
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