Satellite link dynamic regulation device and method

By using a satellite link dynamic control device, which utilizes the coordinated work of an upper-layer policy scheduler, a middle-layer predictor, and a lower-layer real-time controller, the transmission power and modulation and coding scheme are dynamically adjusted. This solves the problem of response lag in satellite communication link management, realizes predictive control of link status and real-time emergency handling, and improves the stability and efficiency of communication.

CN120281371BActive Publication Date: 2026-05-29SHANGHAI JINGJI COMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI JINGJI COMM TECH CO LTD
Filing Date
2025-04-30
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing satellite communication link management methods cannot make timely predictive adjustments based on link quality trends, leading to an increased risk of communication interruption, especially with delayed response under factors such as changes in satellite trajectory, changes in terminal location, and interference in the communication environment.

Method used

A satellite link dynamic control device is adopted, including an upper-layer policy scheduler, a middle-layer predictor, and a lower-layer real-time controller. The link status is predicted by a random forest model, and the transmit power and modulation and coding scheme are dynamically adjusted in combination with mission requirements and real-time link status to achieve dynamic prediction and hierarchical control of the link.

Benefits of technology

It effectively reduces link interruption rate, improves stable communication duration under different channel conditions, ensures communication continuity and service availability, reduces unnecessary adjustment actions, and avoids link resource waste and oscillation problems.

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Abstract

The application relates to a satellite link dynamic regulation device and method, which comprises an upper layer policy scheduler, a middle layer predictor and a lower layer real-time controller. The upper layer policy scheduler acquires a link state prediction result output by the middle layer predictor and a current link state reported by the lower layer real-time controller, selects an initial strategy, a dynamic regulation strategy or a recovery normal communication strategy according to a task demand, and issues a link parameter configuration instruction. The middle layer predictor uses a pre-trained random forest model to perform link state prediction based on an input feature set extracted in a historical sliding window. The lower layer real-time controller executes transmission power and modulation and coding scheme adjustment according to the instruction, performs emergency regulation when link margin abnormality occurs, and gradually adjusts to a normal communication mode after link recovery. Through the application, dynamic prediction and rapid self-adaptive regulation of a satellite link can be realized.
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