Mobility Management via Network Perception

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Solution Overview

Problem

Current wireless communication systems face challenges in mobility management, particularly in dynamic environments where signal attenuation or blockage occurs, leading to inefficiencies in handover processes and measurement events.

Innovation Solution

The method involves obtaining and updating criteria for cell measurement and handover based on network environment perception information, allowing user equipment to autonomously adjust these criteria or suggest updates to the network entity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional handover criteria are used in dynamic environments, then handover decisions can be made, but the accuracy of handover decisions deteriorates due to signal attenuation and blockage

Engineering Contradiction:
Improvehandover decision accuracyVSAvoidhandover reliability in dynamic environments
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The system performs preliminary actions by predicting future signal conditions based on perceived environmental changes (such as upcoming blockages or attenuations) before they actually occur. This allows the network entity to proactively adjust handover criteria and prepare handover decisions in advance, improving both accuracy and reliability in dynamic environments.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the network entity continuously monitors environmental perception information and adjusts handover criteria based on this feedback. The criteria are dynamically updated according to perceived environmental changes, ensuring that handover decisions remain accurate and reliable even as conditions change.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If frequent cell measurements are performed to improve handover accuracy, then measurement precision improves, but network overhead and energy consumption increase

Engineering Contradiction:
Improvecell measurement accuracyVSAvoidenergy consumption for measurements
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The system applies dynamics by making cell measurement configuration adaptive rather than static. The network entity dynamically adjusts measurement configuration based on perceived environmental changes, increasing measurement frequency when environmental conditions indicate potential signal degradation and reducing it when conditions are stable, thereby optimizing the balance between measurement precision and energy consumption.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes parameters of cell measurement configuration (such as measurement frequency, threshold values, and measurement objects) based on environmental perception information. These parameter adjustments allow the system to maintain high measurement accuracy when needed while reducing measurement overhead and energy consumption during stable conditions.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If autonomous updating of handover criteria by user equipment is implemented, then adaptability improves, but device complexity increases

Engineering Contradiction:
Improveautonomous criteria adjustment capabilityVSAvoiduser equipment processing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system enables self-service by allowing user equipment to autonomously update its own handover criteria based on environmental perception information. The UE independently processes environmental data and adjusts its measurement and handover parameters without requiring constant network intervention, thereby improving adaptability while managing device complexity through efficient local processing.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250081048A1Perception enhanced mobility management
Publication Date: 2025.03.06 QUALCOMM INC
  • US20250081048A1 patent drawing
  • US20250081048A1 patent drawing
  • US20250081048A1 patent drawing

AI summary

Certain aspects of the present disclosure provide techniques for mobility management. A method of wireless communications by a user equipment includes obtaining one or more criteria associated with triggering at least one of cell measurement or handover. The one or more updated criteria are based at least in part on network environment perception information. The method includes obtaining one or more updated criteria associated with the triggering at least one of cell measurement or handover.