Proactive Caching for Cellular Network Traffic Reduction
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Solution Overview
Problem
Existing caching solutions in cellular communication networks fail to significantly reduce network traffic for popular content that may be consumed only a few times, such as viral videos or breaking news, as they rely on user requests to initiate content delivery.
Innovation Solution
A proactive caching system where a network node identifies and preloads popular content into client device caches using point-to-multipoint connections, making it available locally before user requests, thereby reducing network traffic and infrastructure demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional caching solutions are used where content is cached only after user requests, then network infrastructure complexity is reduced, but network traffic cannot be significantly reduced for popular content that may be consumed only a few times
Solution Approach 1:
The patent applies preliminary action by proactively caching content in the network before user requests occur. The network node identifies popular content and caches it in advance in content caches within the network infrastructure, so that when users request the content, it can be served from the cache rather than being delivered over the network. This resolves the contradiction by reducing network traffic for popular content while the complexity is managed through automated identification and caching mechanisms.
2Loss of energy
If proactive caching is implemented to reduce network traffic, then network traffic is reduced, but the device complexity of the network node increases
Solution Approach 1:
The patent applies self-service by enabling the network node to automatically identify popular content and make caching decisions without external intervention. The network node monitors content popularity, determines which content to cache, and manages the caching process autonomously. This reduces network traffic through proactive caching while minimizing the increase in complexity by making the system self-managing rather than requiring complex external control mechanisms.
Solution Approach 2:
The patent applies feedback by using content popularity information to guide caching decisions. The network node monitors how popular different pieces of content are and uses this feedback to determine what to cache proactively. This feedback mechanism allows the system to reduce network traffic effectively while keeping the complexity manageable through data-driven, adaptive decision-making rather than static complex configurations.
3Loss of energy
If content is cached proactively before user demand peaks, then network traffic is reduced during high demand periods, but infrastructure strain increases during the caching process
Solution Approach 1:
The patent applies partial action by caching only the most popular content rather than all content. The network node identifies and caches a selective subset of content that is determined to be popular based on monitoring data. This approach reduces network traffic during high demand periods for the cached content while limiting infrastructure strain to only the necessary portion of content that will actually benefit from caching, rather than straining infrastructure to cache everything.
Data Source
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Figure 3
Figure 4A~4B
AI summary
It is presented a method for obtaining caching content. The method is performed in a client device and comprises the steps of: receiving caching content from a network node, the transmission of caching content being initiated by the network node; storing the caching content in a client device cache; determining a need to obtain requested content; checking whether the client device cache comprises caching content corresponding to the requested content; and obtaining the requested content from the client device cache when the client device cache comprises caching content corresponding to the requested content.A corresponding client device, network node, computer programs, computer program products and a vehicle are also presented.