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Low-orbit satellite constellation inter-satellite load routing balancing method and system

A low-orbit satellite and equalization method technology, applied in the field of satellite communication, can solve the problem that the routing algorithm cannot meet the space segment load balance of the satellite-ground transmission requirements at the same time

Pending Publication Date: 2020-05-12
INNOVATION ACAD FOR MICROSATELLITES OF CAS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a low-orbit satellite constellation inter-satellite load routing method and system to solve the problem that the existing routing algorithm cannot simultaneously meet the satellite-ground transmission requirements and realize space segment load balancing

Method used

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  • Low-orbit satellite constellation inter-satellite load routing balancing method and system
  • Low-orbit satellite constellation inter-satellite load routing balancing method and system
  • Low-orbit satellite constellation inter-satellite load routing balancing method and system

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Embodiment 1

[0122]This embodiment provides a load balancing method for low-orbit satellite constellation inter-satellite load routing. The low-orbit satellite constellation inter-satellite load routing method includes: dividing the earth's surface into multiple coverage areas according to the constellation configuration of low-orbit satellites; The constellation configuration establishes a traffic model; according to the traffic model, a plurality of potential congestion values ​​of the coverage areas are obtained, and the inter-satellite load routing is divided according to the potential congestion values ​​of the coverage areas, including: network-wide information collection The module collects the whole network state information and establishes the whole network information base; the link cost calculation module calculates the inter-satellite load according to the destination node distance of the inter-satellite load route and the end-to-end link state of the inter-satellite load route ...

Embodiment 2

[0178] This embodiment provides a low-orbit satellite constellation inter-satellite load routing and balancing system. The low-orbit satellite constellation inter-satellite load routing and balancing system includes a network-wide information collection module, a link cost calculation module, a multipath calculation module and multipath forwarding. module, wherein: the Earth’s surface is divided into multiple coverage areas according to the constellation configuration of low-orbit satellites; a traffic model is established according to the constellation configuration; a plurality of potential congestion values ​​of the coverage areas are obtained according to the traffic model, and according to The potential congestion value of the coverage area performs regional distribution on the inter-satellite load routing, including: the entire network information collection module collects the entire network status information and establishes the entire network information base; the link ...

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Abstract

The invention provides a low-orbit satellite constellation inter-satellite load routing balancing method and system, and the method comprises the steps: dividing the surface of the earth into a plurality of coverage regions according to constellation configuration of a low-orbit satellite, and building a flow model; obtaining potential congestion values of a plurality of coverage areas according to the flow model, carrying out area distribution on an inter-satellite load route according to the potential congestion values of the coverage areas, and collecting, by a whole network information collection module, whole network state information to establish a whole network information base; calculating, by a link cost calculation module, the node transition probability of the inter-satellite load route according to the destination node distance of the inter-satellite load route and the end-to-end link state of the inter-satellite load route; carrying out, by a multi-path calculation module,multi-path search of the inter-satellite load route by taking the path delay of the inter-satellite load route as a constraint to obtain an optimal path of the inter-satellite load route and alternative paths of the inter-satellite load route; and selecting, by a multipath forwarding module, the next hop of the inter-satellite load by using a traffic light strategy according to the current network state in the forwarding process of the inter-satellite load.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a method and system for balancing inter-satellite load routing of low-orbit satellite constellations. Background technique [0002] With the rapid growth of global communication services, satellite communication systems are more and more widely used in military, commercial and civilian communications. In addition, the low-orbit satellite network, as a supplement to the ground network in the global communication system, has gradually become an indispensable part of people's daily life. Among them, the low-earth orbit satellite communication system has the advantages of wide coverage, small propagation delay and low transmission power of terminal equipment, which makes the data transmission by means of low earth orbit (Low Earth Orbit, LEO) satellites widely concerned at home and abroad. While the use of inter-satellite links meets special application requirements ...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W28/02H04W84/06H04B7/185
CPCH04W28/08H04W28/0289H04W84/06H04B7/18521Y02D30/70
Inventor 周雅谢卓辰刘会杰
Owner INNOVATION ACAD FOR MICROSATELLITES OF CAS
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