Service region scheduling method and system of low-orbit constellation satellite communication system

Abstract

The invention provides a service region scheduling method and system of a low-orbit constellation satellite communication system, and aims to overcome challenges brought to resource allocation and service region scheduling by high dynamics and uneven service distribution of low-orbit satellites. Various influence factors needing to be considered in service region scheduling and principles needingto be followed are analyzed, the thought of quantifying user services and performing service region scheduling by using a position region is provided, and a scheme for scheduling a service region by using satellite coverage, high-orbit avoidance, satellite resources, visual time and satellite-ground distance as references is designed. A scheduling algorithm based on multi-objective optimization isprovided, so that real-time, efficient and reliable service region scheduling of the low-orbit constellation satellite communication system is realized.

Description

technical field [0001] The invention relates to a service area scheduling method and system of a low-orbit constellation satellite communication system, and relates to the field of wireless communication networks. Background technique [0002] The low-orbit constellation satellite communication system consists of tens to tens of thousands of low-orbit satellites at an altitude of 200-2000km. These satellites form a satellite constellation to provide high-speed communication and Internet for various users of ground-based, sea-based, space-based, and space-based Access and other services. In recent years, the low-orbit constellation satellite communication system has gradually attracted the attention of all countries in the world due to its short transmission distance, wide coverage, low cost, and ability to provide high-speed and low-latency communication and Internet access, and is regarded as a ground mobile communication system. An important supplement to the system, it h...

AI Technical Summary

Problems solved by technology

[0005] Insufficiency of the fixed division mechanism of GEO satellite communication system service area: the service area cannot be quickly adjusted with changes in business, satellite capabilities and resources, the configuration is inflexible, user satisfaction and resource utilization are not high; the system has poor scalability and is not Conducive to subsequent expansion and transformation

In the service area scheduling of the low-orbit constellation satellite communication system, although the Iridium satellite communication system uses the concept of location area to quantify the traffic volume, the users of the Iridium satellite system are relatively fixed, and the service distribution is relatively stable. And scheduling is relatively simple, there is no mature mechanism to deal with highly dynamic users and business volume changes

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