Orbit and domain partition type double-layer satellite network system and management method

Abstract

The invention provides an orbit and domain partition type double-layer satellite network management system. The orbit and domain partition type double-layer satellite network management system comprises cluster heads and management satellites; when every time slice is started, the link state information is collected by a low-layer satellite and sent to the cluster head corresponding to the time slice; the link state information is gathered through the cluster heads and sent to the management satellites, a routing table is calculated through the management satellites according to the integral network of link state information, and the routing table is issued. The invention also provides an orbit and domain partition type double-layer satellite network management method. According to the orbit and domain partition type double-layer satellite network management method, the orbit partition management is performed on the low-layer satellite through the cluster heads, a domain formed by one or more than one orbit is managed through the management satellites, and accordingly the number of the required management satellites is greatly reduced, the interaction between the management satellites is reduced, and the management efficiency is improved; the management satellites are arranged in the same orbit and accordingly the design complexity of the management on a layer constellation is reduced; the interlayer communication only needs to be performed through cluster heads and the management satellites and accordingly the integral management overhead of the system is reduced.

Description

Technical field [0001] The present invention relates to the technical field of space satellite communication, in particular to a dual-layer satellite network system and management method with sub-orbit and sub-domain. Background technique [0002] With the development of science and technology, people have higher and higher requirements for bandwidth and communication quality, and a single optical fiber network on the ground can no longer meet human needs. Both the government and the individual have a growing desire to establish a reliable and fast satellite network. [0003] The construction of satellite networks has roughly gone through these periods. Single-layer GEO (Geostationary Earth Orbit) satellite networking, single-layer LEO (Low Earth Orbit) satellites or single-layer MEO (Medium Earth Orbit) Earth orbit) satellite networking and multi-layer satellite networking. The single-layer GEO networking technology is simple, but the requirements for terrestrial communication t...

AI Technical Summary

Problems solved by technology

But this management method brings high design requirements to the complexity and cost of high-level satellite constellations

[0007] In order to achieve complete coverage of lower-level satellites, there must be a sufficient number of high-level satellites, which increases the design cost of the entire satellite network, and also makes the management satellite constellation very complex

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