CDN Node Allocation via Physical Scene Quality Scores
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Solution Overview
Problem
Existing CDN node selection methods based on load and cost do not ensure high-quality network services for users.
Innovation Solution
A CDN node allocation method that pre-establishes a node quality score table mapping physical scenes to CDN node quality scores, allowing for the selection of the highest-quality CDN node based on the target physical scene and network request.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CDN node selection is based on load and cost, then resource utilization is improved, but service quality cannot be ensured
Solution Approach 1:
The patent introduces a quality score parameter that dynamically changes based on physical scene characteristics (network type, terminal type, application type). By changing the selection parameter from static load/cost metrics to dynamic quality scores, the system simultaneously optimizes resource utilization and ensures service quality across different physical scenarios.
Solution Approach 2:
The patent makes the CDN node selection dynamic by introducing physical scene awareness. The quality score table is dynamically queried based on real-time physical scene parameters, allowing the system to adapt node selection to changing network conditions, terminal capabilities, and application requirements, thereby maintaining both efficiency and quality.
2Device complexity
If a single CDN node type is selected for all users, then system complexity is reduced, but service quality varies across different physical scenes
Solution Approach 1:
The patent applies local quality by creating different quality score tables for different physical scenes (e.g., mobile vs. fixed network, different terminal types, different application types). Each scene has its own optimized quality criteria, allowing the system to maintain low complexity while achieving high service quality consistency across diverse environments.
Solution Approach 2:
The patent segments the CDN node selection into multiple quality score tables based on physical scene characteristics. Instead of a single universal selection criterion, the system divides selection strategies into scene-specific segments, which simplifies the decision-making process for each scenario while ensuring appropriate service quality for each segment.
3Speed
If CDN node selection does not consider physical scene, then allocation speed is improved, but user experience with latency and lags deteriorates
Solution Approach 1:
The patent performs preliminary action by pre-building quality score tables for different physical scenes before actual node selection occurs. When a user request arrives, the system only needs to query the pre-computed quality score table based on physical scene parameters, which maintains fast allocation speed while incorporating comprehensive quality considerations that reduce latency and improve user experience.
Data Source
AI summary
The present application relates to a CDN node allocation method and apparatus, an electronic device, a medium and a program product, which are applied to the technical field of the Internet. The method includes: acquiring a target physical scene corresponding to a target network request; determining, according to the target physical scene and a pre-established node quality score table, target quality scores of a plurality of types of CDN nodes corresponding to the target physical scene; evaluating the quality of the plurality of types of CDN nodes according to the target quality scores of the plurality of types of CDN nodes to obtain a quality evaluation result; and selecting, according to the number of nodes corresponding to a plurality of types of candidate CDN nodes in a candidate CDN node set and the quality evaluation result, a CDN node of a target type from the candidate CDN node set.