Logged MDT Configuration for Non-Public Network Measurements
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Solution Overview
Problem
The current communication protocols do not support logged Minimization of Drive-Tests (MDT) in Non-Public Networks (NPN) scenarios, limiting the application of MDT to Public Land Mobile Network (PLMN)-related information only.
Innovation Solution
An MDT method and device that enable the configuration and execution of logged MDT using NPN-related information, allowing MDT operations in NPN environments by receiving and utilizing NPN-specific parameters such as MDT NPN lists, logging areas, and logging durations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the current protocol only supports PLMN-related information for logged MDT, then the system maintains simplicity and stability, but the adaptability to NPN scenarios is insufficient
Solution Approach 1:
The patent extends the existing logged MDT mechanism to support both PLMN and NPN scenarios by introducing a new information element (IE) structure that can carry either PLMN-IdentityList or NPN-IdentityList. This allows the same MDT framework to serve multiple network types without creating separate protocols, achieving multi-functionality while maintaining protocol unity.
Solution Approach 2:
The patent modifies the configuration parameters by adding optional fields (plmn-IdentityList and npn-IdentityList) to the LoggedMeasurementConfiguration IE. These parameter extensions allow the system to adapt to different network scenarios (PLMN or NPN) by simply changing which identity list is present and how the terminal processes it, without fundamentally altering the MDT operation mechanism.
2Adaptability or versatility
If logged MDT is extended to support NPN scenarios with additional configuration parameters, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The patent segments the identity list configuration into separate optional IEs (plmn-IdentityList and npn-IdentityList) within the LoggedMeasurementConfiguration. This segmentation allows the terminal to process only the relevant portion based on the network type, reducing the effective complexity for each specific scenario while maintaining comprehensive support for both PLMN and NPN in the overall protocol structure.
Data Source
AI summary
A minimization of drive-tests (MDT) method is performed by a terminal. The MDT method comprises: receiving non-public network (NPN)-related information sent by a network side device, wherein the NPN-related information is used for configuring logged MDT; and executing logged MDT on the basis of the NPN-related information.