Active Network Caching Policy Control for Content Delivery
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Solution Overview
Problem
Current caching technologies in wireless communications networks are limited by passive caching methods, which lack dynamic and expandable performance, and cannot actively cache content, leading to congestion and delayed content delivery, especially with high-demand services like video streaming.
Innovation Solution
A caching system comprising a caching policy control device and main cache devices that actively cache external content based on requests from external packet data networks, allowing for dynamic control and allocation of storage space, and enabling content to be cached proactively, reducing the burden on source content sites.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If passive caching method is used in wireless communications network, then cache function can be provided, but caching flexibility and controllability are insufficient
Solution Approach 1:
The cache system is segmented into multiple functional modules: cache function module for content storage, cache policy control module for dynamic policy management, and interaction interfaces for coordination. This segmentation enables independent optimization of each module, improving caching flexibility without proportionally increasing overall system complexity.
Solution Approach 2:
The patent implements dynamic cache policies that can be adjusted in real-time based on network conditions, user behavior, and content characteristics. The cache policy control module dynamically modifies caching parameters such as cache duration, priority, and capacity allocation, transforming the static passive caching into an adaptive system that responds to changing conditions.
2Productivity
If passive caching is used, then content can be cached, but active caching of high-demand content cannot be performed
Solution Approach 1:
The system incorporates feedback mechanisms that monitor user access patterns, content popularity, and network conditions. The cache policy control module receives this feedback and automatically adjusts caching strategies, enabling the system to proactively cache high-demand content before user requests occur, thus improving content delivery speed through automated decision-making.
Solution Approach 2:
The patent enables preliminary caching of content based on predicted demand patterns, user preferences, and trending information. By performing caching actions before actual user requests, the system prepares content in advance, reducing latency and improving delivery speed for anticipated high-demand content.
3Quantity of substance
If more cache devices are deployed, then caching capacity increases, but network congestion and transmission pressure are not effectively reduced
Solution Approach 1:
The patent implements differentiated cache policies that allocate cache resources based on local network conditions, user location, and content characteristics. Different regions and user groups receive customized caching strategies, optimizing cache utilization and reducing unnecessary transmissions, thereby effectively lowering network congestion while maintaining adequate caching capacity.
Solution Approach 2:
The system dynamically changes caching parameters such as cache hit thresholds, replacement policies, and priority levels based on real-time network conditions. When network congestion is detected, the system adjusts parameters to prioritize essential content and reduce redundant transmissions, effectively mitigating congestion without requiring additional cache capacity.
4Adaptability or versatility
If conventional Internet caching technology is applied to wireless communications network, then caching function can be provided, but features such as UE mobility and specific network structure cannot be considered
Solution Approach 1:
The patent designs a universal cache policy control module that handles multiple wireless network scenarios, user mobility states, and content types through a unified framework. This multi-functional approach enables the system to adapt to various wireless communication conditions without requiring separate specialized systems, maintaining network adaptability while simplifying implementation.
Data Source
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AI summary
Embodiments of the present invention disclose a caching system, apparatus, and method applied to a network. The system includes a caching policy control device and at least one main cache device, where the caching policy control device is configured to receive a content caching request sent by an external packet data network PDN, and control, according to the content caching request, the at least one main cache device to cache external content, where the external content is content sent by the external PDN; and the at least one main cache device is connected to the caching policy control device, located on a data channel between an anchor gateway of the network and the external PDN, and configured to cache the external content according to the control of the caching policy control device. By adopting the present invention, external content can be cached in a main cache device according to a request of an external PDN, thereby implementing active caching.