Dynamic DSCP and Payload Adjustment for Wireless Data Prioritization
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Solution Overview
Problem
In wireless local area networks (WLANs), especially in medical facilities, existing technologies like IEEE 802.11e struggle to dynamically prioritize and manage data transmission effectively, leading to delays and losses of critical patient data due to congestion and varying signal quality, which can impact patient safety.
Innovation Solution
A node with a controller that adjusts the differentiated services control parameter and payload based on priority levels and signal quality indicators, ensuring real-time transmission of critical data by dynamically prioritizing and managing data packets according to the specific needs of each device and network conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the 802.11e DSCP parameter is used for traffic prioritization, then higher priority traffic receives shorter wait times for transmission, but the DSCP parameter is static and does not adapt to changing network conditions or patient acuity levels
Solution Approach 1:
The patent implements dynamic adjustment of the DSCP parameter based on real-time network conditions and patient acuity levels. The system continuously monitors signal quality indicators and automatically modifies the DSCP value to optimize transmission priority, transforming the static 802.11e mechanism into an adaptive system that responds to changing clinical scenarios
Solution Approach 2:
The system incorporates feedback loops that monitor network signal quality and transmission performance, then use this information to adjust the DSCP parameter dynamically. This closed-loop control ensures that critical patient data maintains appropriate priority levels regardless of varying network conditions or patient acuity changes
2Quantity of substance
If multiple wireless clients access the WLAN simultaneously, then network coverage and device connectivity are improved, but network congestion increases causing delays and data loss
Solution Approach 1:
The patent applies differentiated services to individual data streams based on their specific requirements. Each patient monitoring device receives customized priority treatment through dynamic DSCP assignment, ensuring that critical data from high-acuity patients maintains high priority even as network load increases from multiple connected devices
Solution Approach 2:
The system changes the DSCP parameter dynamically based on network congestion levels and data criticality. When network conditions deteriorate due to multiple clients, the system adjusts priority parameters to ensure essential patient safety data maintains reliable transmission despite increased network load
3Productivity
If the data payload size is increased to improve transmission efficiency, then fewer packets are needed for the same data volume, but larger packets are more susceptible to loss under poor signal conditions
Solution Approach 1:
The patent dynamically adjusts payload size based on real-time signal quality indicators. When signal conditions are strong, larger packets are used to maximize transmission efficiency. When signal quality degrades, the system reduces payload size to minimize packet loss, creating an adaptive transmission strategy that optimizes the efficiency-reliability tradeoff
Solution Approach 2:
The system uses feedback from signal quality measurements to continuously optimize payload size. By monitoring transmission success rates and signal conditions, the system adjusts packet dimensions to maintain optimal efficiency while ensuring reliable delivery under varying wireless conditions
Data Source
AI summary
A node is configured for transmitting a data packet over a wireless network according to a differentiated services control parameter. The node includes a controller configured to provide individualized control of the differentiated services code parameter and also to provide individualized control over a payload in the data packet. The controller is also configured to receive data to be transmitted over the wireless network, assign a priority level to the data, and adjust the differentiated services control parameter setting for the node based on the priority level. The controller is also configured to determine a signal quality indicator for the wireless network, and to adjust the amount of the data included in the payload based on the signal quality indicator.