UE Measurement Reporting in Idle Mode for Power-Efficient MDT

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Solution Overview

Problem

Existing wireless communication systems face inefficiencies in receiving periodic measurements from user equipment (UE) in idle or inactive states, leading to power consumption and resource utilization challenges.

Innovation Solution

Implementing a method where user equipment (UE) receives configuration information for specific measurement types and transmits periodic measurements while in idle or inactive mode, and base stations receive these measurements efficiently, optimizing power consumption and resource use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If UE transmits periodic measurements while in connected mode, then measurement reporting reliability is improved, but power consumption increases

Engineering Contradiction:

Improvemeasurement reporting reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic state transitions for measurement reporting. The UE can operate in connected mode for reliable reporting or transition to idle/inactive modes for power saving, with the network configuring appropriate reporting modes based on current needs. This dynamic adaptation resolves the contradiction by allowing the system to switch between reliability and power efficiency based on operational context.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of the UE by introducing new measurement reporting mechanisms specifically designed for idle and inactive states. By defining new reporting configurations that work within the constraints of these low-power states, the system enables measurement reporting without requiring continuous connected mode operation, thus reducing power consumption while maintaining necessary reliability.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If UE remains in connected mode for measurement reporting, then reporting frequency is improved, but resource utilization efficiency deteriorates

Engineering Contradiction:

Improvereporting frequencyVSAvoidresource utilization efficiency

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The patent implements periodic measurement reporting mechanisms that are specifically adapted for idle and inactive states. Instead of requiring continuous connected mode for frequent reporting, the system uses configured periodic reporting intervals that allow the UE to remain in low-power states while still providing measurements at appropriate frequencies. This resolves the contradiction by achieving adequate reporting frequency without the continuous resource allocation of connected mode.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent segments the measurement reporting function from the connected mode requirement. By creating independent reporting mechanisms that can operate in idle/inactive states, the system separates the measurement functionality from the power-intensive connected state, allowing frequent reporting when needed while maintaining resource efficiency during normal operation.

Inventive Principle:

Principle #1Segmentation

3Use of energy by moving object

If UE transitions to idle mode for power saving, then power consumption is reduced, but measurement reporting capability deteriorates

Engineering Contradiction:

Improvepower consumptionVSAvoidmeasurement reporting capability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The patent enables UEs in idle and inactive states to perform measurement reporting autonomously without requiring network activation or transition to connected mode. The UE self-manages the measurement and reporting processes using configured parameters, ensuring that power-saving states do not compromise reporting capability. This self-service approach resolves the contradiction by maintaining reporting functionality independently of connection state.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent applies preliminary action by configuring measurement reporting parameters in advance while the UE is in connected mode. These pre-configured instructions enable the UE to autonomously perform measurements and reports during idle/inactive states without needing real-time network coordination, thus preserving reporting capability while maintaining power-saving benefits.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12556953B2Periodic streaming of reports from user equipments

Publication Date: 2026.02.17 QUALCOMM INC

AI summary

A user equipment (UE) may receive, from a base station, configuration information that indicates one or more first measurement types. Accordingly, the UE may transmit, to the base station, periodically and while the UE is in an idle mode or an inactive state, first measurements based at least in part on the one or more first measurement types indicated in the configuration information. The UE may further transmit, to the base station, second measurements based at least in part on a second measurement type. The first measurement type(s) may be associated with a minimization of drive test (MDT). Similarly, the second measurement type may be associated with an MDT.