Idle Mode Logged MDT Activation for User Equipment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, user equipment (UE) must frequently switch between connected and idle modes to receive instructions for activating logged minimization of drive tests (MDTs), leading to increased power consumption and wastage of network resources.
Innovation Solution
A method that allows user equipment to directly activate logged MDTs in idle mode upon receiving activation signals from the base station, eliminating the need for mode switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE switches to connected mode to receive activation signals for logged MDT, then the UE can receive network instructions, but power consumption increases and network resources are wasted
Solution Approach 1:
The UE is pre-configured with logged MDT measurement configurations (including measurement parameters, reporting formats, and storage requirements) while in connected mode. These configurations are stored in the UE's memory and remain ready for execution. When in idle mode, the UE can directly activate and execute these pre-configured logged MDT measurements upon receiving a simplified activation signal, without needing to switch back to connected mode for full configuration setup, thereby reducing power consumption and signaling overhead.
2Extent of automation
If UE switches to connected mode to receive activation signals for logged MDT, then the network can control MDT operations, but network resources are wasted
Solution Approach 1:
The MDT configuration process is segmented into two phases: (1) Configuration phase in connected mode where the network provides comprehensive MDT measurement parameters, reporting formats, and storage requirements; and (2) Execution phase in idle mode where the UE autonomously activates and performs measurements based on pre-configured parameters and receives only simple activation/collection signals. This segmentation allows network control to be maintained while minimizing the time and resources required for actual MDT operations.
3Adaptability or versatility
If UE frequently switches between connected and idle modes, then the UE can receive MDT instructions, but power consumption increases
Solution Approach 1:
The UE autonomously manages the execution of logged MDT measurements in idle mode using pre-configured parameters stored in its memory. The UE can self-activate measurements, perform measurements on configured parameters (such as reference signal received power, reference signal received quality, and other radio resource measurements), store results locally, and self-report when measurement conditions are met or when activation signals are received, without requiring frequent transitions to connected mode for network instructions.
Data Source
AI summary
A user equipment is configured to operate in an idle mode according to an MDT configuration. When receiving an activation signal from a base station, the user equipment is configured to execute one or multiple logged MDTs in the idle mode according to the activation signal and the MDT configuration.