Cache Control Device for Content Delivery Optimization
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Solution Overview
Problem
The increasing demand for content access through user equipment (UE) has led to communication resource bottlenecks, data loss, and transmission delays due to limited web servers, necessitating improved content delivery methods.
Innovation Solution
A cache control device and cache device system that differentiate content delivery services based on service types, allowing the cache device to handle content transmission independently of the content server for certain services, reducing server load and network traffic by using transmission control indicators with label information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a CDN with cache devices is introduced to improve content access speed, then content delivery efficiency is improved, but device complexity and network control difficulty increase
Solution Approach 1:
A cache control device is introduced as an intermediary component between content servers and cache devices. This mediator manages the complexity by centralizing control logic, including service type identification, cache validity determination, and transmission control. The cache control device receives content from content servers, determines appropriate cache invalidation policies based on service types, and coordinates with cache devices to ensure consistent content delivery without requiring complex peer-to-peer coordination.
2Reliability
If differentiated content delivery services are implemented based on service types, then quality of service is improved, but control mechanism complexity increases
Solution Approach 1:
The system differentiates content delivery services by changing control parameters based on service types. The cache control device identifies service types (e.g., video streaming, software distribution, file transfer) and applies different cache invalidation policies accordingly. For example, video content may use time-based invalidation while software updates use version-based invalidation. This parameter-driven differentiation achieves quality of service improvement without requiring complex custom control logic for each service type.
Solution Approach 2:
The control mechanism is segmented into modular components: service type identification module, cache validity determination module, and transmission control module. Each module handles specific aspects of content delivery control independently, making the overall system more manageable. The segmentation allows each component to be optimized for its specific function while working together to provide differentiated services.
3Productivity
If cache devices store content in advance to reduce server load, then content delivery efficiency is improved, but storage resource consumption increases
Solution Approach 1:
The system performs preliminary actions by pre-determining cache invalidation policies based on service types before content delivery begins. The cache control device analyzes service characteristics in advance and establishes appropriate caching strategies, such as pre-loading frequently accessed content or setting specific validity periods. This preliminary planning enables efficient content distribution without requiring excessive storage capacity, as the system optimizes what is cached based on predicted access patterns and service requirements.
Data Source
AI summary
A cache control device for content delivery, includes: an interface module to communicate with a cache device and a content server; a storage module to store a service list in which service types of respective content servers are recorded; and a control module to identify the content server from at least one of (i) a content request message received from the interface module and requesting content and (ii) a content response message received from the interface module and delivering the content, determine a service type of the content server with reference to the service list stored in the storage module, and perform control so that an indicator indicating the determined service type is transmitted to the cache device through the interface module.