UE-Triggered MDT Configuration for Wireless Network Resource Conservation
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Solution Overview
Problem
Current methods for minimizing drive tests (MDT) in wireless communication systems often waste wireless network resources and UE battery life, as they require the network to assign MDT measurements without specific UE involvement, and fail to detect issues outside designated regions within a PLMN.
Innovation Solution
A method where a mobile device determines predefined events, such as poor voice or data throughput, and sends a message to the network to configure MDT measurements, allowing the UE to actively trigger the procedure, thereby conserving resources and enabling detection of issues outside specific regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the network assigns MDT measurements without specific UE involvement, then the network can collect coverage information, but wireless network resources and UE battery life are wasted
Solution Approach 1:
The UE autonomously determines whether to trigger MDT measurement based on predefined events (voice quality, data throughput) without network assignment. The UE self-activates the measurement function only when needed, avoiding continuous monitoring and saving battery life while still collecting coverage information when issues occur.
2Loss of information
If the network assigns MDT measurements without specific UE involvement, then the network can collect coverage information, but wireless network resources are wasted
Solution Approach 1:
The UE independently triggers MDT measurements based on local event detection rather than waiting for network assignment. This eliminates unnecessary network signaling and resource allocation for MDT configuration, reducing wireless network resource consumption while maintaining coverage information collection capability.
3Area of stationary object
If the network assigns a region within a PLMN for MDT measurement, then the measurement scope is defined, but the network cannot detect issues outside the specific region
Solution Approach 1:
Instead of the network defining the measurement region and waiting for UEs to report, the UE autonomously triggers measurements when events occur anywhere in the PLMN. This inverts the traditional approach, allowing detection of issues outside pre-assigned regions since UEs can trigger MDT from any location based on local performance conditions.
4Loss of time
If the network continuously monitors for MDT triggering events, then issues can be detected timely, but network resources are consumed
Solution Approach 1:
The UE performs local monitoring of voice quality and data throughput events and autonomously triggers MDT measurements when thresholds are met. This eliminates the need for continuous network-side monitoring, reducing network resource consumption while maintaining timely issue detection capability through UE-initiated measurements.
Data Source
AI summary
A method of MDT measurement configuration triggering for a mobile device in a wireless communication system is disclosed. The method comprises determining whether an event predefined in the mobile device occurs, and transmitting a message for indicating a network of the wireless communication system to configure a MDT measurement to the mobile device, to the network when the event occurs.