Application-Triggered MDT Reporting for Network Slice QoE Measurement
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently collecting and reporting minimization of drive test (MDT) measurements and quality of experience (QoE) data to improve network quality and user experience.
Innovation Solution
Implementing a system where user equipment (UE) and serving base stations collect immediate MDT and QoE measurements based on triggering events, such as the start of an application or service, and adjust reporting intervals and amounts based on network slicing, area configuration, and time of day, with the UE transmitting reports to a trace collection entity (TCE) for network optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous MDT measurements and reporting are performed, then network quality verification is improved, but device complexity and operational costs increase
Solution Approach 1:
The patent implements periodic MDT measurements triggered by specific events (application start, service activation, network slice changes) rather than continuous monitoring. The measurement configuration includes triggering conditions that activate measurement collections at defined intervals or events, reducing device complexity while maintaining network quality verification through strategically timed measurements.
Solution Approach 2:
The patent applies different measurement configurations to different network slices, applications, and services based on their specific QoS requirements. Each network slice receives tailored measurement parameters, reporting intervals, and thresholds, allowing optimized verification for critical services while reducing overhead for less demanding applications, thereby balancing reliability and device complexity.
2Measurement precision
If detailed MDT and QoE reports are collected frequently, then measurement precision is improved, but loss of time and processing overhead increase
Solution Approach 1:
The patent configures measurement parameters, thresholds, and reporting rules in advance through OAM interfaces before actual measurements begin. The network pre-defines triggering conditions, measurement types, and reporting formats, allowing the UE to execute pre-planned measurement sequences that achieve precise measurements without real-time configuration delays, thus improving measurement precision while minimizing time loss.
Solution Approach 2:
The patent implements dynamic adjustment of reporting intervals and measurement frequencies based on network conditions, application requirements, and slice priorities. The system adapts measurement granularity and reporting timing in response to changing conditions, maintaining high measurement precision when needed while reducing reporting overhead during stable periods, effectively balancing precision and time efficiency.
3Adaptability or versatility
If application and service specific measurements are implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal measurement framework where a single MDT measurement configuration structure serves multiple applications, services, and network slices. The measurement configuration includes parameters that can be dynamically assigned to different services and slices, allowing the same measurement infrastructure to adapt to diverse requirements without requiring separate complex configurations for each application, thus improving adaptability while controlling device complexity.
Data Source
AI summary
In some wireless communications systems, devices may support minimization of drive test (MDT) reporting, quality of service (QoS) reporting, and quality of experience (QoE) measurements. A user equipment (UE) and the serving base station may obtain measurements in accordance with a measurement configuration that indicates various triggering events or reporting adjustment factors associated with the measurements. The measurement configuration may indicate a triggering event such as the start of an application or service at the UE, and the UE may obtain MDT or QoE measurements based on identifying the application or service. Additionally, the serving base station may obtain MDT and QoE measurements based on identifying the application and service or a notification from the UE. The UE and the serving base station may identify reporting adjustment factors based on network slicing, area configurations and times of the day affecting the reporting interval and reporting amount for the measurement report.