Routing table distribution method and device of low-orbit constellation system

A low-orbit constellation and routing technology, applied in transmission systems, digital transmission systems, radio transmission systems, etc., to achieve the effects of improving upload efficiency, link stability, and simple operation

Active Publication Date: 2020-05-15
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] From the above analysis, it can be seen that the existing research on routing focuses on how to calculate routing and generate routing tables, and the research on the above note focuses on on-satellite storage and interactive operations, but the distribution process of satellite routing tables has not yet been involved.

Method used

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  • Routing table distribution method and device of low-orbit constellation system
  • Routing table distribution method and device of low-orbit constellation system
  • Routing table distribution method and device of low-orbit constellation system

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Embodiment 1

[0091] refer to figure 1 , shows a flow chart of the steps of a routing table distribution method for a low-orbit constellation system provided by an embodiment of the present invention, as shown in figure 1 As shown, the routing table distribution method of the low-orbit constellation system may specifically include the following steps:

[0092] Step 101: When the ground control center needs to update the satellite routing table, obtain the routing tables of all satellites on the orbital plane where the passing satellite is located.

[0093] The routing table distribution method proposed by the present invention, such as figure 2 As shown, the update of the routing table can be focused on a single orbital plane, and the whole process can be decomposed into satellite-ground upload and distribution to adjacent satellites on the same orbit. The realization principle is simple, the amount of data distributed is moderate, the operability is strong, and the reliability is high. ...

Embodiment 2

[0160] refer to Image 6 , which shows a schematic structural diagram of a routing table distribution device for a low-orbit constellation system provided by an embodiment of the present invention, as shown in Image 6 As shown, the routing table distribution device of the low-orbit constellation system may specifically include the following modules:

[0161]The routing table acquisition module 610 is used to obtain the routing tables of all satellites on the orbital plane where the transiting satellite is located when the ground control center needs to update the satellite routing table;

[0162] The first routing table splitting module 620 is used to split the routing table into a plurality of first routing table data packets through the ground control center;

[0163] The first data packet sending module 630, configured to sequentially send a plurality of the first routing table data packets to the transit satellite;

[0164] The routing table integration module 640 is co...

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Abstract

The invention provides a routing table distribution method and device of a low-orbit constellation system. The method comprises the steps of when a ground management and control center needs to updatea satellite routing table, obtaining routing tables of all satellites on an orbital plane where a transit satellite is located; splitting the routing table into a plurality of first routing table data packets through the ground management and control center; sequentially sending the plurality of first routing table data packets to the transit satellite; after the transit satellite receives all the first routing table data packets, integrating all the first routing table data packets into a routing table; splitting the routing table into a plurality of second routing table data packets throughthe transit satellite; and respectively distributing other second routing table data packets, except the second routing table data packet of the transit satellite, in the plurality of second routingtable data packets to all satellites on the orbital plane where the transit satellite is located through the transit satellite. According to the invention, the routing table uploading efficiency can be improved, the routing table is distributed by fully utilizing the fixed same-orbit inter-satellite link, the link is stable, and the operation is simple.

Description

technical field [0001] The invention relates to the technical field of low-orbit constellation systems, in particular to a routing table distribution method and device for low-orbit constellation systems. Background technique [0002] (1) The routing distribution method of the Iridium system [0003] The Iridium system is the world's first low-orbit constellation system with on-board processing capabilities. The system uses ground stations deployed around the world to implement routing table injection. When the ground needs to add or update the routing table, the main ground station calculates the routing table and distributes it to sites around the world through the ground network. Each ground station is responsible for updating the routing table of several satellites it can see, and the update timeliness is high. [0004] Due to the limited global deployment capability of our country, it would take several days to use the method of sequentially placing notes on individua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/751H04B7/185H04L45/02
CPCH04L45/02H04B7/18521
Inventor 惠蕾放田洲何婧刘岩李园利邱翔
Owner XIAN INSTITUE OF SPACE RADIO TECH
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