Satellite Content Pre-loading Reduces Latency
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Solution Overview
Problem
Low Earth Orbit (LEO) satellite systems face high latency and limited data rates, leading to bottlenecks in internet connectivity and a degraded user experience due to limited bandwidth, especially as more user terminals access various content over satellite constellations.
Innovation Solution
A method that intercepts content requests from terminal equipment, determines the context of content demand (time and geographical location), and downloads data during spare bandwidth periods for storage, reducing channel saturation and latency by anticipating content needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If satellite communication is used to provide global internet coverage, then universal connectivity is achieved, but latency increases and data rate decreases
Solution Approach 1:
The patent implements preliminary action by intercepting content requests and determining contextual patterns (time, location, user behavior) in advance. The system pre-loads content during off-peak hours when satellite bandwidth is available, storing it in local storage devices at ground stations or user premises. This allows content to be delivered immediately during peak demand without waiting for satellite transmission, thereby reducing latency while maintaining global coverage capability.
2Adaptability or versatility
If more user terminals connect to access content through satellite, then internet accessibility increases, but bandwidth saturation occurs and user experience degrades
Solution Approach 1:
The system performs preliminary analysis of request patterns to identify popular content and predictable access times. It proactively downloads and caches this content in advance during periods of lower demand, creating a local content repository that can serve multiple users simultaneously without requiring real-time satellite bandwidth for each request.
Solution Approach 2:
The patent creates copies of popular content and stores them in local storage devices at ground stations or user premises. Instead of transmitting the same content multiple times over the satellite link during peak demand, the system serves copies from local storage, dramatically reducing the data rate requirement on the satellite channel while maintaining high connectivity for numerous users.
3Loss of information
If content is delivered in real-time through satellite, then data freshness is maintained, but communication channel saturation occurs during peak demand
Solution Approach 1:
The system determines contextual patterns from intercepted requests to predict when and where content will be needed. It then pre-loads content into local storage during off-peak hours, ensuring the content is available immediately when needed without requiring real-time satellite transmission during peak demand periods.
Solution Approach 2:
The patent implements a dynamic content delivery system that adapts its operation mode based on demand conditions. During off-peak hours, it operates in pre-loading mode to fill local storage. During peak demand, it switches to local serving mode using cached content. The system dynamically adjusts between satellite transmission and local delivery based on real-time channel conditions and demand patterns.
Data Source
AI summary
A method is proposed for storing at least one piece of data representative of a content available at a content server connected to a constellation of communication satellites. Such method comprises:intercepting (S200) at least one request for the content transmitted by at least one terminal equipment connected to the constellation of communication satellites;determining (S210), based on the at least one request, a context wherein the content is required by the at least one terminal;downloading (S220) the at least one piece of data from the content server at time slots function of the context; andstoring (S230) in a data storage device the at downloaded least one piece of data for subsequent delivery to a given terminal.