A PS and PL data communication method, corresponding apparatus and equipment

By reusing the time-slot interrupt mechanism and unbuffered virtual device memory in the satellite communication terminal, combined with optimal burst length transmission, the problems of low data transmission efficiency and consistency between PS and PL are solved, improving data transmission efficiency and rate, and meeting the needs of broadband satellite communication systems.

CN122068958BActive Publication Date: 2026-07-17CHINA SATELLITE NETWORK EXPLORATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA SATELLITE NETWORK EXPLORATION CO LTD
Filing Date
2026-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing DMA transfer method between PS and PL has problems such as low data transfer efficiency, low CPU performance, low bus utilization and data consistency in satellite communication, especially affecting system efficiency when there are frequent interrupts and the CPU responds to interrupts frequently.

Method used

By reusing the time slot interrupt mechanism of the satellite communication terminal protocol, and combining the data transmission and reception process and interrupt triggering within each scheduling cycle, the interruption frequency is reduced. Furthermore, by using unbuffered virtual device memory and merging small packet data, the optimal burst length is selected for data transmission, thereby improving data transmission efficiency and speed.

Benefits of technology

It effectively reduces the interruption frequency, improves the real-time performance and reliability of data transmission, enhances the overall data transmission efficiency and rate, solves the frequent interruption and data consistency problems in DMA transmission mode, and meets the high-speed data transmission requirements of broadband satellite communication systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a data communication method and corresponding apparatus and device for PS and PL, relating to the field of communication, for realizing high-speed data transmission between PLs. In response to a scheduled time slot arriving at the satellite communication terminal, the PS and PL encapsulate the data to be transmitted and write the encapsulated data into a predetermined memory area, while the data receiver reads the encapsulated data from the memory area. This application reuses the inherent time slot interrupt mechanism of the satellite communication protocol, synchronizing the PS and PL based on the scheduled time slot, optimizing the interrupt frequency, reducing the impact on the operating efficiency of the upper-layer system, and improving the overall data transmission efficiency and reliability.
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