Dynamic Cell Measurement Triggering for Wireless UE Power Optimization

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently triggering cell measurements in User Equipment (UE) while minimizing power consumption and service interruptions, particularly for low-power devices like NB-IoT and eMTC.

Innovation Solution

The method involves dynamically triggering UE cell measurements based on predetermined values and triggering conditions received from a network element, allowing the UE to determine if the conditions are met and perform measurements accordingly. Additionally, the UE can send neighbor cell information, UE capability information, and cell measurement assisting information to the base station to optimize network performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If cell measurements are performed frequently to ensure cellular signal coverage requirements, then measurement accuracy and coverage reliability are improved, but UE power consumption increases and service interruptions occur

Engineering Contradiction:

Improvecellular signal coverage requirementVSAvoidUE power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic triggering conditions for cell measurements that adapt to current network conditions and UE state. Instead of fixed periodic measurements, the system dynamically determines when measurements should be triggered based on factors such as signal quality thresholds, mobility state, and network configuration, allowing the measurement frequency to vary dynamically rather than being static

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of measurement triggering from fixed periodic intervals to condition-based triggering with configurable thresholds and parameters. The network can configure different triggering conditions including signal quality thresholds, time thresholds, and event-based triggers, allowing flexible adjustment of measurement behavior to balance coverage reliability with power consumption

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If cell measurements are performed frequently to identify suitable cells, then cell selection accuracy is improved, but service interruption increases

Engineering Contradiction:

Improvecell identification accuracyVSAvoidservice interruption

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent employs feedback mechanisms where measurement results and triggering condition evaluations are fed back to the network and UE. The network receives measurement reports from the UE and can adjust triggering conditions based on observed patterns, while the UE uses feedback from network configurations and measurement outcomes to optimize when to perform measurements, creating a closed-loop system that reduces unnecessary measurements

Inventive Principle:

Principle #23Feedback

3Productivity

If the UE sends detailed cell measurement information to the base station, then network performance optimization is improved, but signaling overhead and processing complexity increase

Engineering Contradiction:

Improvenetwork performanceVSAvoidsignaling and processing complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent extracts and reports only the most relevant measurement information to the network based on triggering conditions and configuration. Instead of reporting all possible measurement data continuously, the system extracts and reports specific parameters such as measurement results, triggering condition outcomes, and candidate cell information only when measurement triggering conditions are met, reducing unnecessary signaling

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements a universal measurement reporting framework that can adapt to different network scenarios and requirements. The same measurement and reporting mechanism serves multiple functions including cell selection, handover preparation, network optimization, and coverage verification, allowing a single system to handle diverse network performance optimization needs without requiring separate specialized mechanisms

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12323866B2Method, device, and system for cell measurement and report in wireless networks

Publication Date: 2025.06.03 ZTE CORP

AI summary

This disclosure relates generally to dynamically configure cell measurement triggering condition for a UE in a wireless communication network. Performed by a UE in a network, the method including: receiving cell measurement triggering information from a first network element in the network, the cell measurement triggering information comprising a set of predetermined values for a UE parameter and a set of triggering conditions for cell measurements corresponding to the set of predetermined values; determining a current value of the UE parameter for the UE; identifying a cell measurement triggering condition among the set of triggering conditions based on the current value of the UE parameter for the UE and the cell measurement triggering information; determining if the cell measurement triggering condition is met by the UE; and in response to the cell measurement triggering condition being met, performing the cell measurement.