UE Neighbor Cell Report Pruning for Reliable Low-Power Handover

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Solution Overview

Problem

Current wireless communication systems face inefficiencies due to unnecessary neighbor cell measurements and reporting, leading to wasted power and resources, particularly when serving cell signal quality temporarily drops and quickly recovers, triggering unnecessary handover procedures.

Innovation Solution

Implement enhanced triggering events that allow user equipment (UE) to refrain from performing or reporting neighbor cell measurements when serving cell signal quality recovers, thereby optimizing power usage and resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If neighbor cell measurement reporting is performed whenever serving cell signal quality drops below threshold, then handover reliability is improved, but unnecessary measurements and reporting increase power consumption

Engineering Contradiction:

Improvehandover reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary evaluation of serving cell signal quality trends before triggering neighbor cell measurement reporting. By assessing whether the signal quality deterioration is temporary or sustained, the system可以避免不必要的邻区测量和上报,从而降低功耗同时保持切换可靠性

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms to monitor serving cell signal quality continuously and adjust measurement reporting behavior dynamically. When signal quality recovers or stabilizes, the system stops unnecessary neighbor cell measurements, optimizing power consumption while maintaining reliable handover when needed

Inventive Principle:

Principle #23Feedback

2Speed

If neighbor cell measurements are triggered by serving cell signal quality drops, then handover responsiveness is improved, but unnecessary handover procedures increase processing overhead

Engineering Contradiction:

Improvehandover responsivenessVSAvoidprocessing overhead

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The system performs preliminary assessment of signal quality trends and duration before triggering neighbor cell measurements. By evaluating whether the signal drop is transient or sustained, the system avoids initiating unnecessary measurement and handover procedures, reducing processing overhead while maintaining rapid response to genuine handover needs

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts measurement triggering thresholds and parameters based on current serving cell signal quality trends. This dynamic adaptation allows the system to respond quickly to sustained signal degradation while filtering out temporary fluctuations, optimizing the balance between handover responsiveness and processing efficiency

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20260032483A1A method to prune cell measurement reports

Publication Date: 2026.01.29 QUALCOMM INC

AI summary

Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE), comprising receiving, while connected to a serving cell of a first radio access technology (RAT), a serving cell measurement configuration, transmitting a serving cell measurement report when a first condition involving a first measurement of the serving cell is met, receiving a neighbor cell measurement configuration, and deciding whether to transmit a neighbor cell measurement report, based on at least one second condition involving a second measurement of the serving cell.