MDT Configuration Management in Wireless Networks

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Solution Overview

Problem

Existing wireless communication technologies face challenges in efficiently configuring and managing minimization of drive tests (MDT) measurements, particularly in ensuring accurate configuration and avoiding conflicts between different MDT types and durations.

Innovation Solution

A method and device for configuring MDT measurements, where a second node receives MDT status information from a first node, and decides whether to configure a management-based logged MDT measurement for a UE, continue calculating the remaining duration, or transmit the information to a third node, thereby optimizing MDT configuration and management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If MDT status information is transmitted between nodes without verification, then configuration efficiency is improved, but configuration accuracy deteriorates due to potential overwriting of valid configuration information

Engineering Contradiction:
Improveconfiguration efficiencyVSAvoidconfiguration accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent applies preliminary action by checking the remaining duration of MDT configuration before transmitting new configuration information. The second node verifies whether the first MDT configuration has expired by comparing the current time with the remaining duration, and only proceeds with configuration transmission if the first configuration has expired. This preliminary verification prevents erroneous overwriting while maintaining efficient configuration updates.

Inventive Principle:
Principle #10Preliminary action

2Device complexity

If MDT configuration is managed without tracking remaining duration, then device complexity is reduced, but measurement precision deteriorates due to inability to track configuration validity

Engineering Contradiction:
Improvemanagement complexityVSAvoidconfiguration validity tracking
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent segments the MDT configuration management into distinct components: the first node transmits MDT status information including remaining duration, the second node receives and verifies this information by comparing current time with remaining duration, and only configures new MDT parameters if verification succeeds. This segmentation allows precise tracking of configuration validity while maintaining relatively simple device structures through modular verification logic.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If MDT configuration is updated without verification of existing configuration status, then adaptability is improved, but reliability deteriorates due to potential conflicts between different MDT types and durations

Engineering Contradiction:
Improveconfiguration flexibilityVSAvoidconfiguration consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements feedback by having the second node verify the current time against the remaining duration of the first MDT configuration before applying new configuration. This feedback mechanism ensures that new MDT configurations are only applied when previous configurations have expired, preventing conflicts between different MDT types and durations while maintaining flexible configuration updates.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12342206B2Method and device for configuration of minimization of drive tests
Publication Date: 2025.06.24 SAMSUNG ELECTRONICS CO LTD
  • US12342206B2 patent drawing
  • US12342206B2 patent drawing
  • US12342206B2 patent drawing

AI summary

The present disclosure provides a method and device for configuration of minimization of drive tests, in which a first node sends MDT status information to a second node; and the second node decides whether it is possible to configure a management-based logged MDT measurement for a UE. It is avoided that the MDT configuration information that is currently still valid is erroneously overwritten when the network reconfigures the MDT for the UE.