Femto Node Mobility Parameter Configuration via Neighbor Detection

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Solution Overview

Problem

Femto nodes in wireless communication systems lack the ability to dynamically adjust mobility and paging parameters based on the capabilities of neighboring access points, leading to suboptimal network performance and user experience.

Innovation Solution

A method and apparatus for configuring mobility and paging parameters of a femto node by determining the capabilities of neighboring access points and comparing them to the femto node's capabilities, allowing for adjustments to mobility and paging parameters to optimize handover and service area management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If femto nodes deploy without considering current network environment, then deployment simplicity is improved, but network performance deteriorates

Engineering Contradiction:
Improvedeployment simplicityVSAvoidnetwork performance
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The system performs preliminary detection of neighboring access points and their capabilities before the femto node begins normal operation. The femto node proactively gathers environment information and pre-calculates optimal mobility parameters based on detected capabilities, ensuring network performance is optimized from the start without requiring complex manual configuration during deployment.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The femto node automatically detects neighboring access points, determines their capabilities, and self-configures its mobility parameters without requiring manual intervention. The system performs self-optimization by comparing detected capabilities with its own capabilities and autonomously adjusting parameters to ensure optimal network performance while maintaining deployment simplicity.

Inventive Principle:
Principle #25Self-service

2Device complexity

If femto nodes use fixed mobility parameters, then configuration complexity is reduced, but handover performance deteriorates

Engineering Contradiction:
Improveconfiguration complexityVSAvoidhandover performance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The femto node dynamically adjusts mobility parameters based on real-time detection of neighboring access point capabilities. The system transitions from static fixed parameters to dynamic adaptive parameters that automatically optimize handover performance. The femto node continuously monitors the network environment and adjusts parameters such as handover thresholds and timing based on detected capabilities, improving handover performance without significantly increasing configuration complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes mobility parameters based on detected capabilities of neighboring access points. The femto node adjusts specific parameters including handover thresholds, timing advance values, and power compensation factors according to the capabilities detected in the environment. This parameter adaptation enables optimized handover performance while maintaining relatively simple configuration procedures.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If femto nodes detect and compare capabilities of neighboring access points, then network performance is improved, but processing complexity increases

Engineering Contradiction:
Improvenetwork performanceVSAvoidprocessing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system extracts only the essential capability parameters from neighboring access points that are most relevant for mobility decision-making. Instead of processing all possible parameters, the femto node focuses on key capabilities such as transmission power, supported features, and load conditions. This selective extraction reduces processing complexity while maintaining improved network performance through capability-based optimization.

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of operation

If femto nodes optimize mobility parameters based on neighboring capabilities, then user experience is improved, but measurement and detection difficulty increases

Engineering Contradiction:
Improveuser experienceVSAvoidcapability detection difficulty
Core Design Contradiction:
Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The system uses universal measurement procedures that serve multiple purposes: the same detection mechanism gathers information for both basic network operation and optimized mobility parameter configuration. The femto node uses standard wireless signaling and measurement techniques that are already part of normal network operation, eliminating the need for specialized complex detection procedures while still enabling capability-based optimization for improved user experience.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP2820880B1Method and apparatus for determining mobility parameters based on neighboring access points
Publication Date: 2019.11.27 QUALCOMM INC
  • EP2820880B1 patent drawingFigure 1
  • EP2820880B1 patent drawingFigure 2
  • EP2820880B1 patent drawingFigure 3

AI summary

Methods and apparatus are provided for configuring mobility or paging parameters of a femto node. A method includes determining capabilities of one or more neighboring access points based in part on signals received from the one or more neighboring access points. The method includes comparing the capabilities to one or more capabilities of the femto node to determine a mobility or paging parameter adjustment. The method includes adjusting one or more mobility or paging parameters based on the mobility or paging parameter adjustment.