Local Cache Device Data Request Method for Mobile Networks
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Solution Overview
Problem
Current Content Delivery Networks (CDNs) deployed in backbone networks face high overheads and transmission delays due to the need for costly infrastructure and complex deployment, leading to network congestion and poor user experience in mobile data traffic scenarios.
Innovation Solution
A cache data request method that utilizes local cache devices connected to base stations via local gateways, allowing user equipment to directly access cached data from nearby local cache devices, reducing the need for direct connections to the core network and minimizing transmission delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CDN is deployed in backbone network, then content delivery capability is improved, but transmission delay and overhead increase
Solution Approach 1:
The patent deploys cache servers at edge locations closer to user equipment rather than centralized backbone network, creating locally optimized cache nodes that reduce transmission distance and delay while maintaining content delivery capability
Solution Approach 2:
The patent introduces local cache servers as intermediary nodes between user equipment and the core CDN infrastructure, enabling faster local content delivery while the intermediary manages communication with the backbone network to reduce overall transmission delay
2Productivity
If CDN is deployed in backbone network, then content caching capability is improved, but deployment cost and complexity increase
Solution Approach 1:
The patent segments the centralized CDN deployment into distributed edge cache nodes, where each node independently provides caching services locally, reducing the complexity of centralized management while maintaining overall caching capability
Solution Approach 2:
The patent creates simplified copies of CDN functionality at edge locations, where local cache servers replicate essential caching and delivery capabilities without requiring full backbone network infrastructure at each deployment point, reducing overall system complexity
3Adaptability or versatility
If data is transmitted through core network, then network coverage is improved, but data transmission overhead increases
Solution Approach 1:
The patent performs preliminary caching of content at edge servers before user requests arrive, so that frequently accessed content is already positioned locally, reducing the need for long-distance transmissions through the core network and lowering transmission overhead
Solution Approach 2:
The patent optimizes data transmission by serving content from local edge caches whenever possible, reducing core network overhead, while maintaining broad network coverage through the distributed edge infrastructure that can fall back to core network when needed
Data Source
Figure 1a
Figure 1b~1c
Figure 2a-1
AI summary
Embodiments of the present invention provide a cache data obtaining method. After detecting a first request message specific to a target data server, a data request device determines, based on a pre-received local cache device list sent by a base station, a target local cache device used to cache service data of the target data server. Subsequently, the data request device establishes a network connection to the target local cache device, and sends a service data request specific to the target data server to the target local cache device by using the network connection. With data of the target data server cached to a local cache device on a base station side, the data request device can directly request the target service data from the target local cache device. This avoids a waste of transmission overheads and a relatively large transmission delay that are caused by requesting data from the target data server, and therefore, a response speed of the data request device after the data request is increased.