Shared Spectrum MDT Reporting for Network Optimization
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Solution Overview
Problem
Conventional MDT methods are inadequate for optimizing network devices that communicate using a shared spectrum, as they do not provide sufficient measurement reports to reflect the application status of shared spectrum conditions.
Innovation Solution
Perform MDT on a shared spectrum to obtain measurement reports that include RSSI, CO, LBT failure information, and signal quality, enabling better optimization of network devices using shared spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional MDT methods are used for licensed spectrum only, then the measurement process is simple and straightforward, but the measurement reports cannot reflect the application status of shared spectrum conditions
Solution Approach 1:
The patent segments the MDT measurement process into distinct components: licensed spectrum measurement, shared spectrum measurement, and hybrid measurement. By dividing the measurement process into separate measurable units, the system can accurately capture shared spectrum conditions without overwhelming complexity in the overall measurement framework
Solution Approach 2:
The patent introduces new measurement parameters specifically for shared spectrum (RSSI, CO, LBT failure information) while maintaining compatibility with existing licensed spectrum parameters. This parameter expansion allows accurate reflection of shared spectrum application status without completely redesigning the measurement system
2Loss of information
If MDT measurement parameters for shared spectrum are added, then the measurement reports provide detailed insights into shared spectrum conditions, but the complexity of the MDT configuration information increases
Solution Approach 1:
The patent designs the MDT configuration information structure to serve multiple functions: it can configure measurements for licensed spectrum only, shared spectrum only, or both simultaneously. This multi-functional configuration reduces information loss by providing comprehensive measurement capabilities while managing complexity through a unified configuration framework
Solution Approach 2:
The patent introduces an intermediary configuration layer that translates high-level measurement requirements into specific measurement parameters. This intermediary structure prevents information loss by ensuring all necessary shared spectrum conditions are captured while simplifying the complexity for both network devices and terminals
3Adaptability or versatility
If conventional MDT methods are used without shared spectrum measurements, then the network device optimization is based on limited information, but implementing comprehensive shared spectrum measurements increases the complexity of the measurement and reporting process
Solution Approach 1:
The patent implements dynamic measurement configuration where the terminal can adaptively adjust measurement parameters based on whether it is operating on licensed spectrum, shared spectrum, or both. This dynamic approach enhances network device optimization capability by providing relevant measurements while managing complexity through context-aware measurement selection
Data Source
AI summary
A minimization of drive tests (MDT) method and apparatus includes: a network device sends MDT configuration information to a terminal, where the MDT configuration information includes an MDT measurement parameter of a shared spectrum; and the terminal performs MDT on the shared spectrum based on the MDT configuration information to obtain a measurement report, and sends the measurement report to the network device. The MDT may be performed on a shared spectrum to obtain a measurement report. The measurement report may better reflect an application status of the shared spectrum, to help optimize a network device that performs communication by using the shared spectrum.