UE Quality Indication for Precise MDT Measurement Reporting
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Solution Overview
Problem
The existing minimization of drive test (MDT) framework lacks quality requirements, leading to issues such as unsuitable MDT results, overtime reports, and incorrect reporting, particularly in time-sensitive tasks, which affects the effectiveness of network optimization.
Innovation Solution
Configuring user equipment (UE) with quality indication for MDT by providing precision, reliability, and intention information, enabling the UE to perform MDT tasks accurately and efficiently, and report measurement results accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If MDT framework is implemented without quality requirements, then MDT tasks can be performed, but the measurement results lack precision and reliability
Solution Approach 1:
The patent introduces quality indication parameters (precision, reliability, timing) into the MDT configuration framework. By changing the configuration from binary/boolean parameters to quantitative parameter ranges, the system enables precise control of measurement quality while maintaining framework simplicity. The quality indication allows UEs to adjust measurement parameters according to defined thresholds without complicating the overall architecture.
2Reliability
If quality information is added to MDT configuration, then measurement reliability improves, but configuration complexity increases
Solution Approach 1:
The quality indication mechanism is designed to be universally applicable across different MDT task types and network conditions. A single quality indication parameter set can govern multiple measurement aspects (precision, reliability, timing) without requiring separate configuration mechanisms for each aspect. This multi-functional approach improves reliability while avoiding proportional increase in configuration complexity.
3Reliability
If manual driving test is used, then comprehensive network testing can be performed, but time consumption and cost increase
Solution Approach 1:
The patent replaces manual driving tests with automated UE-based MDT measurements. Instead of human operators physically conducting tests, the system uses UE devices to automatically perform measurements according to configured quality indications. This substitution maintains testing reliability through standardized measurement protocols while dramatically reducing time consumption and operational costs.
4Measurement precision
If MDT tasks are performed without quality parameters, then implementation is simple, but time-sensitive tasks cannot meet precision requirements
Solution Approach 1:
The quality parameters are configured in advance before MDT tasks execute. By pre-defining precision requirements, reliability thresholds, and timing constraints in the configuration phase, the system enables time-sensitive measurements to meet their precision requirements without adding complexity during execution. The preliminary configuration allows UEs to automatically adjust measurement parameters to satisfy predefined quality indications.
Data Source
AI summary
The present disclosure describes methods, system, and devices for configuring a user equipment (UE) with quality information for minimization of drive test (MDT). One method includes sending, by the RAN node, a configuration message to the UE, the configuration message comprising the quality information, so that the UE performs an MDT task and reports at least one MDT measurement result according to the quality information; and receiving, by the RAN node, the at least one MDT measurement result from the UE. Another method includes receiving, by the UE, a configuration message from a RAN node, the configuration message comprising the quality information; and performing, by the UE, an MDT task and reporting at least one MDT measurement result according to the quality information.