Sub-Edge Content Recovery for Reliable Satellite Delivery
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Solution Overview
Problem
Existing content delivery networks fail to provide reliable high-bandwidth access to a large portion of the population due to limited infrastructure at the last mile, leading to suboptimal network performance and inefficient utilization of network resources, particularly for users with low-bandwidth connections.
Innovation Solution
Implementing a context-aware sub-edge device with multiple network interfaces and local storage/computation capabilities to enhance network performance by preloading content and performing intelligent content recovery using satellite and non-satellite networks, optimizing delivery through a tiered architecture that includes a central cloud device and sub-edge hubs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional CDN and ISP services are used to deliver content, then infrastructure complexity is reduced, but network performance and reliability deteriorate for users with low-bandwidth connections
Solution Approach 1:
The patent introduces sub-edge devices as intermediary components between traditional CDN/ISP infrastructure and end-user devices. These sub-edge devices with local storage and computation capabilities act as mediators that cache content locally and manage content recovery, thereby improving delivery reliability for low-bandwidth users without requiring complete redesign of the core network infrastructure.
Solution Approach 2:
The network infrastructure is segmented into multiple tiers: central cloud devices, sub-edge devices with local storage, and end-user devices. This segmentation allows content to be cached and managed at the sub-edge level, reducing the burden on central infrastructure while improving local content delivery reliability without requiring full infrastructure complexity at every node.
2Productivity
If content is delivered directly from cloud to end-user devices, then infrastructure cost is reduced, but network resource utilization deteriorates due to repeated transmission of same content
Solution Approach 1:
The sub-edge devices perform preliminary content caching and storage before actual content delivery requests. By pre-positioning content at sub-edge locations with local storage capabilities, the system avoids repeated transmission of the same content data over the network, thereby improving network resource utilization and reducing overall data transmission volume.
Solution Approach 2:
Instead of transmitting original content data repeatedly from cloud to multiple end-users, the system creates and stores copies at sub-edge devices. These local copies are then served to multiple users in the vicinity, significantly reducing the quantity of data that needs to be transmitted over the network while maintaining high productivity and efficient resource utilization.
3Area of stationary object
If satellite network is used for content recovery, then coverage area is expanded to remote areas, but transmission speed deteriorates due to satellite latency
Solution Approach 1:
The patent implements local quality by equipping sub-edge devices with local storage and computation capabilities. This allows content recovery to be performed locally at the sub-edge level using cached copies, avoiding the need for slow satellite transmissions. Remote areas benefit from expanded coverage through sub-edge device deployment, while speed is maintained through local operations rather than satellite dependency.
Solution Approach 2:
Sub-edge devices act as intermediaries between satellite network and end-users. They receive and cache content from satellite transmissions, then serve local users from their stored copies. This intermediary approach expands coverage to remote satellite-covered areas while mitigating speed issues by eliminating repeated satellite round-trips for content recovery.
4Speed
If non-satellite network is used for content recovery, then transmission speed is improved, but coverage area deteriorates as it cannot reach remote areas
Solution Approach 1:
The patent merges satellite network and non-satellite network approaches by deploying sub-edge devices that can operate with both network types. In remote areas, sub-edge devices receive initial content via satellite and then serve users locally from cached copies, achieving both coverage expansion and speed improvement. In areas with better infrastructure, non-satellite networks provide fast recovery while sub-edge devices extend coverage to surrounding remote areas.
Data Source
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AI summary
Systems and methods for reliable content delivery from a satellite to sub-edge devices are described. Content is delivered to a plurality of edge devices. Missing portions of the content are identified. One or more of the missing portions are selected, and the selected portions are recovered via a satellite network or a non-satellite network. The recovery is coordinated by a central cloud device based on one or more recovery factors.