User-Plane RAN Reconfiguration for Variable Channel Conditions
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Solution Overview
Problem
Existing 3GPP frameworks fail to dynamically adapt Radio Access Network (RAN) configurations to meet the stringent requirements of future wireless communication applications, such as high throughput and low latency, due to static and inflexible processing procedures that do not account for varying channel conditions or application-specific needs.
Innovation Solution
A method and device for dynamically modifying RAN configurations at the user plane by monitoring data packet loss ratios and adjusting RAN settings based on heuristic-based threshold comparisons, allowing for dynamic changes in segmentation, concatenation, and header processing to optimize performance under reliable channel conditions without involving the control plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static RAN configuration is used to ensure system stability, then reliability is improved, but adaptability to varying channel conditions and application requirements deteriorates
Solution Approach 1:
The patent implements dynamic RAN configuration modification at the user plane by introducing a dynamic configuration manager that monitors channel conditions (packet loss ratios) and automatically adjusts RAN parameters such as segmentation thresholds, concatenation settings, and header processing modes. This allows the system to transition from static to dynamic operation, adapting to varying channel conditions while maintaining stability through controlled modification based on monitored metrics.
2Reliability
If comprehensive RAN processing procedures are implemented to handle all channel conditions, then reliability is improved, but processing complexity increases
Solution Approach 1:
The patent segments the RAN processing by separating control plane functions from user plane functions. The dynamic configuration manager in the user plane handles specific adaptation tasks (monitoring packet loss, adjusting segmentation/concatenation parameters) independently, while the control plane maintains overall system control. This segmentation reduces the processing burden on any single component and simplifies the overall system architecture.
Solution Approach 2:
The patent extracts the dynamic configuration management functionality from the control plane and places it in the user plane. This extraction allows the system to handle dynamic adaptations locally at the user plane without involving the control plane for every configuration change, thereby reducing control plane complexity and enabling faster local responses to channel condition changes.
3Adaptability or versatility
If dynamic RAN modification is implemented to improve adaptability, then adaptability is improved, but processing overhead increases
Solution Approach 1:
The patent implements self-service by enabling the user plane to autonomously monitor channel conditions through packet loss ratio measurements and automatically adjust RAN configurations without requiring control plane intervention for each modification. The dynamic configuration manager autonomously decides when to modify segmentation thresholds, concatenation settings, or header processing modes based on monitored metrics, eliminating the need for complex control plane signaling for every configuration change.
Solution Approach 2:
The patent introduces feedback mechanisms where the dynamic configuration manager continuously monitors packet loss ratios and other channel quality metrics, then uses this feedback to automatically adjust RAN parameters. This closed-loop feedback system enables adaptability while keeping processing overhead manageable by only modifying configurations when actual channel conditions warrant changes, rather than continuously adjusting parameters.
4Reliability
If redundant processing steps are maintained to ensure reliability, then reliability is improved, but latency increases
Solution Approach 1:
The patent applies partial action by selectively enabling or disabling certain processing steps based on channel conditions. When channel conditions are good (low packet loss), the system can reduce processing by skipping certain redundancy checks or simplifying header processing. When conditions deteriorate, the system restores full processing reliability. This partial application of processing steps maintains reliability when needed while reducing latency when conditions permit.
Data Source
AI summary
Disclosed is a method and device for dynamically modifying radio access network (RAN) configuration at a user plane during a RAN layer processing. The method comprises determining a data packet loss ratio during a transmission of a plurality of data packets via a transmission channel. The method further comprises comparing the determined data packet loss ratio with a first threshold value to determine good channel conditions. Based on a result of comparison, the method comprises determining whether a current condition of the transmission channel is reliable or unreliable. Further, the method comprises incrementing a timestamp corresponding to a time at which the current condition of the transmission channel is determined as reliable. Subsequently, the method comprises dynamically modifying the RAN configuration at the user plane upon a determination that the incremented timestamp value is greater than the second threshold value.