Real-Time Data Packet Switching in Convergent Networks
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Solution Overview
Problem
Existing packet-oriented communication networks face challenges in seamlessly switching data packets between channels without disrupting real-time transmissions, especially when transmission quality drops, leading to increased power consumption and unnecessary signaling traffic due to frequent WLAN access point switching.
Innovation Solution
A method and system that continuously monitor data streams for errors using error detection devices and switching devices in terminals and network nodes, switching to a second channel only when the error rate exceeds predefined limits within a monitoring time window, ensuring a predetermined number of data packets are transmitted per unit time without disrupting the real-time data stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequent switching to WLAN access points is performed to maintain real-time transmission quality, then transmission reliability is improved, but power consumption increases and unnecessary signaling traffic occurs
Solution Approach 1:
The patent changes the parameter of error rate threshold to trigger channel switching. Instead of switching frequently based on minor quality fluctuations, the system monitors error rates and only switches channels when the error rate exceeds a predefined threshold within a monitoring time window, thereby reducing unnecessary switching, lowering power consumption, and maintaining transmission reliability.
2Reliability
If continuous monitoring and switching between channels is performed, then transmission quality is maintained, but device complexity increases
Solution Approach 1:
The patent segments the monitoring process into discrete time windows and defines specific error rate thresholds for triggering channel switching. This segmentation simplifies the complexity by breaking down continuous monitoring into manageable intervals with clear decision criteria, making the system easier to implement while maintaining transmission quality.
3Reliability
If channel switching is performed based on real-time error detection, then transmission quality is improved, but signaling traffic increases
Solution Approach 1:
The patent changes the parameter of error rate threshold to trigger channel switching. Instead of switching frequently based on minor quality fluctuations, the system monitors error rates and only switches channels when the error rate exceeds a predefined threshold within a monitoring time window, thereby reducing unnecessary switching, lowering power consumption, and maintaining transmission reliability.
4Speed
If monitoring time window is shortened to detect errors faster, then response speed is improved, but measurement precision decreases
Solution Approach 1:
The patent employs dynamic adjustment of the monitoring time window based on transmission conditions. The system can adaptively select between shorter time windows for rapid response when needed and longer time windows for more precise error rate measurement, allowing it to balance response speed and measurement precision according to actual transmission requirements.
Data Source
Figure 1
AI summary
The invention relates to a method and a system for transmitting data packets between a terminal (1) and a network node (2) of a convergent communication network via a first channel (3) for a user service, wherein a switch to a second channel (5, 6, 7) is made if the transmission quality of the transmission decreases. The transmission is carried out in a continuous data stream, wherein a predetermined number of data packets per time unit is always present. In order to evaluate the transmission quality, the transmitted data are analyzed by an error detection unit (8) for errors and a switching unit (9) in the terminal (1) and/or in the network node (2) checks whether the number of errors at least within a transmission time window exceeds at least one predefined limit value. While maintaining the transmission of the predetermined number of data packets per time unit, the switching unit(s) (9) switch(es) to the second channel (4, 5, 7) when the at least one limit value is exceeded.