Network Node Data Packet Re-Transmission During Switching
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Solution Overview
Problem
Data packet losses occur during node switching operations in network systems due to weak connections and network congestion, leading to service disruptions and delays, especially in time-sensitive services like voice calls and video conferencing.
Innovation Solution
Implementing a system where network nodes automatically re-transmit data packets based on pre-configured parameters before a loss is notified, ensuring timely recovery and reducing packet loss rates by determining conditions such as timer values and counter values to manage re-transmissions effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data packets are transmitted during node switching operation, then network service continues, but data packet losses occur due to weak connections and network congestion
Solution Approach 1:
The patent applies preliminary action by pre-configuring parameters (timer values, counter values, and re-transmission flags) in the data packet before transmission during node switching. This allows the receiving node to automatically determine whether re-transmission is needed based on these pre-set parameters, enabling proactive preparation for potential packet loss without waiting for actual loss detection, thus improving reliability while preventing packet loss during switching operations
2Reliability
If data packets are re-transmitted after loss detection, then packet loss is recovered, but long turn-around time is required which is not suitable for time-sensitive services
Solution Approach 1:
The patent embeds pre-configured parameters including timer values and counter values in the original data packet before transmission. When the receiving node receives the packet, it can immediately evaluate these pre-set parameters to determine if re-transmission is needed, eliminating the need for lengthy detection and request cycles. This preliminary configuration enables rapid re-transmission decisions, recovering packet loss within time-sensitive service requirements
Solution Approach 2:
The patent implements feedback by using pre-configured parameters that provide immediate information about transmission conditions and re-transmission needs. The receiving node evaluates these parameters (timer values, counter values, re-transmission flags) to get real-time feedback on whether the transmission environment was suitable, enabling quick adaptive re-transmission decisions without lengthy turn-around times
3Productivity
If pre-configured parameters are used for automatic re-transmission determination, then timely packet recovery is achieved, but system complexity increases
Solution Approach 1:
The patent applies parameter changes by using pre-configured values for timers, counters, and re-transmission flags that are embedded in the data packet itself. These parameters are set before transmission based on expected network conditions, allowing automatic re-transmission determination without complex real-time analysis. The receiving node simply evaluates these pre-set parameters to make quick decisions, achieving fast packet recovery while keeping system complexity manageable through standardized parameter evaluation
Data Source
AI summary
Provided are system, method, and device for managing data packets between network nodes. The system includes: a first network node including: a memory storing instructions; and at least one processor configured to execute the instructions to: transmit one or more data packets stored in a buffer to a second network node; determine whether or not a re-transmission of the one or more data packets is required; re-transmit the one or more data packets to the second network node, based on determining that the re-transmission is required; and clear the one or more data packets from the buffer, based on determining that the re-transmission is not required.