UE Measurement Relaxation Reporting for RLF and Handover Feedback

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Solution Overview

Problem

Existing technologies lack an effective mechanism for the network to be aware of whether a Radio Link Failure (RLF) or successful handover occurs in conjunction with UE measurement relaxation, impacting system performance and delaying detection of failures.

Innovation Solution

The UE generates and transmits a report including information about measurement relaxation to the network, associated with RLF or successful handover reports, allowing the network to adjust measurement relaxation configurations based on this information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If measurement relaxation is applied to save UE power, then UE power consumption is reduced, but the network cannot detect failures timely

Engineering Contradiction:

ImproveUE power consumptionVSAvoidfailure detection timeliness

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the UE reports measurement relaxation information to the network. The report includes indicators such as whether measurement relaxation was applied, RLF occurrence, and handover success/failure. This feedback enables the network to detect failures timely while the UE maintains power-saving measurement relaxation, resolving the contradiction between power consumption and failure detection reliability.

Inventive Principle:

Principle #23Feedback

2Use of energy by moving object

If measurement relaxation configuration is applied, then UE power saving is optimized, but system performance is compromised

Engineering Contradiction:

ImproveUE power savingVSAvoidsystem performance

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The network uses the measurement relaxation reports from the UE to adjust future measurement relaxation configurations. By analyzing report data such as RLF occurrence and handover success rates, the network can optimize the measurement relaxation configuration to balance power saving with system performance, preventing performance degradation while maintaining power efficiency.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If detailed measurement relaxation information is reported, then network can adjust configuration accurately, but report overhead increases

Engineering Contradiction:

Improveconfiguration adjustment accuracyVSAvoidreport overhead

Core Design Contradiction:

Measurement precisionVSLoss of information

Solution Approach 1:

The patent extracts only the essential measurement relaxation information needed for network configuration adjustment. The report includes key indicators such as whether measurement relaxation was applied, RLF occurrence, and handover outcomes, rather than reporting all possible measurement details. This selective extraction provides sufficient accuracy for configuration adjustment while minimizing report overhead.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS12549993B2Enhanced User Equipment report

Publication Date: 2026.02.10 NOKIA TECHNOLOGIES OY

AI summary

Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of the enhancement on the UE report. The method comprises generating, a report including information related to a measurement relaxation performed by the first device based on a measurement relaxation configuration, the report being associated with at least one of a RLF report or a successful handover report; and transmitting the report to the second device. In this way, the network can be aware about whether a failure was experienced in conjunction with the measurements relaxation. With the enhanced report, the network may determine the future configuration of the measurement relaxation.