Multi-subflow Network Transmission with Dynamic Mode Switching
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Solution Overview
Problem
In network transmission scenarios with multiple subflows, existing technologies face challenges in maintaining transmission stability and efficiency due to varying subflow delays and unpredictable network latency, leading to out-of-order data packets and reduced reliability.
Innovation Solution
A method and apparatus that determine network status parameters of subflows to switch between aggregated transmission and redundant transmission based on preset conditions, ensuring stable and predictable latency for aggregated transmission and improving reliability by using redundant transmission in unstable states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If aggregated transmission is performed using multiple subflows with varying transmission delays, then bandwidth utilization and transmission efficiency are improved, but data packets arrive out of order and transmission stability deteriorates
Solution Approach 1:
The patent applies dynamics by making the transmission mode adjustable and adaptable based on network conditions. The system dynamically switches between aggregated transmission mode (when subflow delays are stable and predictable) and redundant transmission mode (when subflow delays are unstable or unpredictable). This dynamic adaptation resolves the contradiction by allowing the system to optimize for efficiency when possible while maintaining stability when necessary.
Solution Approach 2:
The patent changes the parameter of transmission mode (from fixed to variable) based on the stability and predictability of subflow transmission delays. By monitoring delay characteristics and adjusting the transmission mode accordingly, the system can achieve high efficiency when aggregated transmission is suitable while ensuring stability when redundant transmission is needed, thus resolving the contradiction between efficiency and stability.
2Reliability
If redundant transmission is performed separately using multiple subflows, then transmission reliability is improved, but transmission efficiency and bandwidth utilization are reduced
Solution Approach 1:
The system dynamically selects between redundant transmission mode (for reliability) and aggregated transmission mode (for efficiency) based on real-time assessment of subflow delay stability and predictability. This dynamic approach ensures that redundant transmission is used only when necessary for reliability, while aggregated transmission is utilized when it can maintain both reliability and efficiency.
Solution Approach 2:
The transmission mode parameter is changed based on network conditions. When subflow delays are unstable or unpredictable, the system switches to redundant transmission mode to prioritize reliability. When delays are stable and predictable, it switches to aggregated transmission mode to optimize efficiency, thus resolving the contradiction between reliability and efficiency.
3Speed
If aggregated transmission is performed without predicting network latency, then transmission speed is improved, but transmission stability deteriorates due to unpredictable delays
Solution Approach 1:
The patent applies preliminary action by assessing the stability and predictability of subflow transmission delays before performing aggregated transmission. The system evaluates delay characteristics in advance and only proceeds with aggregated transmission when the delays are determined to be stable and predictable. This preliminary assessment ensures that high-speed aggregated transmission is used only when it will maintain stability, resolving the contradiction between speed and stability.
Solution Approach 2:
The system uses feedback from delay measurements to determine whether aggregated transmission should be performed. By monitoring subflow transmission delays and assessing their stability and predictability, the system can make informed decisions about transmission mode selection. This feedback mechanism ensures that aggregated transmission is used only when it will maintain both speed and stability.
Data Source
AI summary
A network transmission method comprises determining at least one network status parameter of the subflows. When at least one network status parameter of at least two of the plurality of subflows satisfies a preset condition, the method further comprises performing aggregated transmission for the data using the at least two subflows, wherein the aggregated transmission means that one data packet is sent using only one of the at least two subflows, and data packets sent using all of the at least two subflows are different from each other.