Network Node Rate Variation Tracking for QoE
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Solution Overview
Problem
Measuring and addressing latency, jitter, and reliability in wireless networks is challenging, as existing methods fail to accurately capture these parameters, leading to suboptimal quality of experience (QoE) for sensitive applications.
Innovation Solution
Implementing rate variation measurement across different protocol layers (PDCP, IP, and application layers) to determine Quality of Service (QoS) flow and network slice performance, allowing network nodes to adjust data rates and improve QoE by scheduling based on threshold criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If rate variation measurement is implemented across multiple protocol layers (PDCP, IP, application layers), then measurement precision of QoE parameters is improved, but device complexity increases
Solution Approach 1:
The patent segments the measurement system into multiple independent protocol layers (PDCP layer, IP layer, application layer), where each layer performs specific measurement functions. This segmentation allows precise measurement of QoE parameters at different stages of data transmission without requiring a single complex measurement system, thus improving measurement precision while managing complexity through modular architecture.
Solution Approach 2:
The patent introduces measurement across multiple protocol layers as an additional dimension to traditional single-layer measurement approaches. By measuring rate variation at PDCP, IP, and application layers simultaneously, the system gains multi-dimensional insights into QoE parameters, enabling more accurate tracking and analysis of network performance characteristics.
2Reliability
If network nodes adjust data rates based on rate variation thresholds, then quality of experience is improved, but response time increases due to measurement and decision processing
Solution Approach 1:
The patent implements preliminary action by pre-configuring threshold values for rate variation at different protocol layers before actual network operation. These pre-set thresholds enable network nodes to make rapid scheduling decisions without performing complex real-time calculations, thus improving QoE reliability while minimizing response time delays.
Solution Approach 2:
The patent establishes a feedback mechanism where rate variation measurements from multiple protocol layers are continuously monitored and fed back to network nodes. This feedback loop enables dynamic adjustment of data rates based on actual network conditions, improving QoE while maintaining responsive timing through efficient feedback processing.
3Measurement precision
If rate variation is measured at multiple protocol layers, then accuracy of latency and jitter tracking is improved, but measurement and detection difficulty increases
Solution Approach 1:
The patent segments the measurement task across different protocol layers, with each layer responsible for specific measurement functions. The PDCP layer measures rate variation at the packet convergence level, the IP layer measures at the network layer, and the application layer measures at the end-user level. This segmentation simplifies the measurement implementation at each individual layer while achieving comprehensive accuracy through aggregation of results from all layers.
Data Source
AI summary
In some implementations, a distributed unit (DU) associated with a network node may determine a rate variation associated with one or more of a quality of service (QOS) flow or a network slice. The DU may perform a scheduling for a user equipment (UE) based on the rate variation, wherein the scheduling is associated with an adjusted data rate based on the rate variation.