Content Delivery Network Latency and Cost Optimization
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Solution Overview
Problem
Content delivery networks (CDNs) face challenges in efficiently managing client computing device content requests, particularly with large-scale implementations and high-resolution content, which strain computing resources and incur higher costs due to considerations of latency and delivery quality.
Innovation Solution
The solution involves selecting computing devices for content delivery based on logic that minimizes latency for a first subset of content and cost for a second subset, using Point of Presence locations, and prioritizing the transmission of content subparts such as frames to optimize delivery efficiency and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a CDN service provider uses multiple computing devices to deliver content, then delivery quality and latency are improved, but cost increases
Solution Approach 1:
The patent segments content into encoded subparts (frames) and distributes them across multiple computing devices at different POP locations. This allows the system to deliver content from multiple sources simultaneously, improving reliability and reducing latency while managing costs by selectively using multiple devices only when necessary.
Solution Approach 2:
The system dynamically selects which computing devices to use for content delivery based on real-time conditions such as latency requirements, cost considerations, and content characteristics. This dynamic allocation allows the CDN to optimize the balance between delivery quality and cost for each content request.
2Reliability
If high-resolution content is transmitted to meet quality requirements, then delivery quality is improved, but transmission cost and computing resource strain increase
Solution Approach 1:
The patent changes the parameter of content representation by encoding content into compressed subparts (frames) that can be selectively transmitted. This encoding allows the system to maintain high delivery quality by transmitting only necessary content portions at appropriate resolution levels, thereby reducing transmission costs and computing resource requirements.
Solution Approach 2:
By segmenting high-resolution content into smaller encoded frames, the system can transmit content more efficiently. The segmentation allows for selective transmission of only the necessary frames to achieve the required quality level, reducing overall transmission cost and resource strain compared to transmitting complete high-resolution content.
3Loss of energy
If content is delivered from a single computing device, then cost is reduced, but latency increases
Solution Approach 1:
The patent introduces encoded content subparts as intermediaries that can be pre-positioned at multiple POP locations. This allows the system to reduce latency by delivering content from the nearest available POP while managing costs by using multiple intermediaries only when the latency benefit justifies the additional expense.
Data Source
AI summary
A system and method for the management of client computing device content requests by service providers are provided. The requested content corresponds to content organized as a series of ordered frames, which include a number of reference frames. The management of the content requests can include the selection of computing devices corresponding to various Point of Presence locations for providing requested content. The selection of the computing devices can incorporate logic related to the delivery of a first subset of the content from a Point of Presence based on minimizing delivery latencies. The selection of the computing devices can incorporate logic related to the delivery of a second subset of the content from a second Point of Presence based on minimizing costs associated with delivery of the second subset.