UE Radio Measurement Reporting for Priority-Aware Handover
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Solution Overview
Problem
In cellular networks, UE measurements for multiple measurement objects are not always ordered according to their priorities, leading to suboptimal handover decisions and inefficient use of radio resources.
Innovation Solution
The UE reports the status of higher priority measurement objects alongside lower priority measurements, allowing the network node to make informed decisions on dual connectivity, thereby optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the UE measures and reports measurements in the order of measurement object availability, then the measurement process is simple and follows natural measurement flow, but the reporting order does not reflect priority requirements leading to suboptimal handover decisions
Solution Approach 1:
The measurement report is segmented into two distinct parts: measured measurements (for objects already measured) and measurement status information (for objects not yet measured but with higher priority). This segmentation allows the network to receive both completed measurements and prioritization information separately, enabling better decision-making without complicating the overall measurement process.
Solution Approach 2:
The UE performs preliminary assessment of measurement status for higher priority measurement objects before completing the measurement process. By reporting measurement status information in advance (indicating whether measurements have been initiated or completed), the network can make informed decisions about handover and dual connectivity setup before all measurements are finalized, improving decision quality without waiting for complete measurement cycles.
2Loss of information
If the network requests measurements for multiple measurement objects with different priorities, then comprehensive measurement data is obtained, but the UE cannot guarantee reporting in priority order due to unpredictable measurement object availability
Solution Approach 1:
The measurement status information serves as feedback to the network about the current state of higher priority measurement objects. This feedback mechanism allows the network to understand which measurements are more important and their current status, enabling priority-based decision-making without requiring the UE to reorganize the fundamental measurement collection process.
Solution Approach 2:
The measurement status information field serves multiple functions: it indicates whether measurements have been initiated, whether they are completed, and implicitly conveys priority information. This multi-functional approach allows the system to maintain measurement reporting efficiency while capturing priority information that would otherwise be lost.
3Reliability
If the UE prioritizes reporting higher priority measurements first, then handover decisions are improved, but the measurement process becomes more complex as the UE must track and manage measurement priorities
Solution Approach 1:
The priority management complexity is extracted from the UE's measurement execution process and placed in the network's measurement request and decision-making process. The UE simply reports measurement status for higher priority objects without needing to reorganize its internal measurement management, while the network uses this information to make priority-based decisions. This extraction reduces UE complexity while maintaining decision quality.
Data Source
AI summary
A method for measuring radio characteristics of measurement objects, the method being performed by a user equipment, UE. The method includes: receiving, from a network node, a request to measure and report radio measurements for at least a first measurement object and a second measurement object, wherein the request includes a priority for each measurement object; measuring radio characteristics of the first measurement object; and transmitting measurement status of the second measurement object for which radio characteristics have yet to be measured. The second measurement object has a higher priority than the first measurement object.