Time slot management system for small and medium-sized satellites

Abstract

The invention discloses a time slot management system for small and medium-sized satellites. The time slot management system comprises satellites, wherein the satellites include time slot management;and the time slot management includes fixed time slot management, dynamic time slot management and frequency updating. The time slot management system is scientific and reasonable, and safe and convenient to use. Through the creation, allocation and maintenance of fixed time slots and dynamic time slots of the satellites by a ground numerical control center, the specific flow of communication slotallocation between an acquisition type terminal and an interaction type terminal is made clear. Interference between adjacent satellites is avoided through frequency updating of transit satellites. Slot allocation is the prerequisite for the system to provide various services, and slots are reserved for acquisition terminals or terminals with higher priorities during network access, so that services are readily available. For interactive terminals, dynamic slot allocation is implemented according to the mobility characteristics, thereby specifying the validity period of slot allocation, releasing after use or after timeout, and realizing the full reuse of resources.

Description

technical field [0001] The invention relates to the technical field of satellites, in particular to a time slot management system for medium and small satellites. Background technique [0002] Simply put, satellite communication is the communication between radio communication stations on the earth using satellites as relays. The satellite communication system consists of satellites and earth stations. The characteristics of satellite communication are: large communication range; as long as the radio waves emitted by satellites Within the covered range, communication can be carried out between any two points; it is not easily affected by land disasters; it can be opened as long as the earth station circuit is set; it can be received in multiple places at the same time, and can economically realize broadcast and multiple address communication; The circuit setting is very flexible, and the traffic that is too concentrated can be dispersed at any time; the same channel can be u...

AI Technical Summary

Problems solved by technology

[0002] Simply put, satellite communication is the communication between radio communication stations on the earth using satellites as relays. The satellite communication system consists of satellites and earth stations. The characteristics of satellite communication are: large communication range; as long as the radio waves emitted by satellites Within the covered range, communication can be carried out between any two points; it is not easily affected by land disasters; it can be opened as long as the earth station circuit is set; it can be received in multiple places at the same time, and can economically realize broadcast and multiple address communication; The circuit setting is very flexible, and the traffic that is too concentrated can be dispersed at any time; the same channel can be used in different directions or different intervals. At present, in terms of satellite time slot management, the creation, allocation and management of satellite fixed time slots and dynamic time slots are very important. There is no clear system algorithm for maintenance and frequency update of transiting satellites to avoid interference from adjacent satellites, so a time slot management system for small and medium satellites is urgently needed to solve the above problems

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