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Communication method and system based on high and low orbit satellites

A technology of high-orbit satellites and low-orbit satellites, which is applied in the field of communication, can solve the problems of low utilization of spacecraft resources, large transmission data and command delays, etc., to achieve collaborative storage and distributed offloading, reduce computing delays, The effect of improving dispatching efficiency and utilization rate

Active Publication Date: 2018-07-27
CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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Problems solved by technology

[0003] The present invention provides a method and system based on high and low orbit satellite communication, which is used to solve the problems of large time delay in transmitting data and instructions between satellite network nodes and low resource utilization on spacecraft in the prior art

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  • Communication method and system based on high and low orbit satellites

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Embodiment Construction

[0035] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] It should be noted, figure 1 In , ellipses represent areas covered by low-orbit satellites, and hexagons and pentagons represent areas not covered by any low-orbit satellite.

[0037] In the first embodiment of the present invention, the method based on high and low orbit satellite communication provided includes:

[0038] N low-orbit satellites 2 collect and receive event information within their respective coverage areas,...

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Abstract

The invention discloses a communication method and system based on high and low orbit satellites. High orbit satellites and N low orbit satellites are included; the N low orbit satellites are used foracquiring and receiving event information in respective coverage areas, and reporting the service information of the event information to the high orbit satellites; and the high orbit satellites areused for distributing and matching the service information to the low orbit satellites in the management domain of the high orbit satellites or the high orbit satellites outside the management domainof the high orbit satellites. According to the communication method and system based on the high and low orbit satellites disclosed by the invention, due to an inter-satellite communication resource collaborative management mode, the acquisition and distribution collaborative operation of wide-area information is realized among the high and low orbit satellites; the storage and unlocking mode of inter-satellite resources is provided; collaborative storage and distributed unloading of communication resources among the high and low orbit satellites can be realized; the inter-satellite resource scheduling efficiency and the utilization rate are increased; and the calculation delay of inter-satellite resources is reduced.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and system based on high and low orbit satellite communication. Background technique [0002] With the development of technologies such as aerospace communication and cloud computing, the communication space has been extended to a higher space. However, in the prior art, the limitations of spacecraft technology and application environment make various resources (energy resources, computing resources, communication resources) on the spacecraft very limited, and the utilization rate is low. The high dynamics of inter-satellite links and satellite nodes make the network topology change periodically. In terms of the composition of its system equipment, the functions are different. It can be a simple sensor system or an on-board computer system that can complete calculations and processing. In addition, different satellite systems also have great differences in storag...

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Application Information

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IPC IPC(8): H04W36/22H04W36/30H04W84/06H04B7/185
CPCH04B7/18584H04W36/22H04W36/30H04W84/06
Inventor 张纬栋李文屏张兴张佳鑫王文博周彬陆洲李斌崔司千刘凯康海龙
Owner CHINA ACADEMY OF ELECTRONICS & INFORMATION TECH OF CETC
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