Neighbor Access Node Identification in Wireless Networks

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Solution Overview

Problem

Current approaches for identifying neighbor access nodes in wireless networks are limited by geographic distance alone, failing to consider transmission characteristics and RAT types, which can result in suboptimal quality of service during handovers.

Innovation Solution

The method involves determining three geographic regions around a source access node: a first region bounded by a maximum sector distance, a second region bounded by a maximum circumferential distance less than the sector distance, and a third region within the communication sector. Access nodes are identified as neighbors based on their location within these regions and the orientation of their communication sectors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If neighbor access nodes are identified based solely on geographic distance, then the identification process is simple, but the quality of service during handover deteriorates

Engineering Contradiction:

Improvesimplicity of identification processVSAvoidquality of service during handover

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The identification process is segmented into multiple evaluation dimensions: geographic distance, transmission characteristics, and RAT type compatibility. Each dimension is assessed separately and combined to determine neighbor access nodes, allowing comprehensive evaluation while maintaining systematic simplicity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent changes the parameters used for identification from单一的 geographic distance to multiple parameters including transmission characteristics and RAT type. This multi-parameter approach improves service quality while the parameters are systematically managed to prevent excessive complexity

Inventive Principle:

Principle #35Parameter changes

2Speed

If neighbor access nodes are identified considering only geographic proximity, then the selection process is fast, but the suitability for maintaining quality of service deteriorates

Engineering Contradiction:

Improvespeed of neighbor identificationVSAvoidsuitability for quality of service maintenance

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

Transmission characteristics and RAT type information are determined in advance and stored for quick reference during neighbor identification. This preliminary preparation allows fast identification while ensuring suitability for quality of service maintenance through pre-validated parameters

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The identification process dynamically adjusts the weight and importance of different parameters (geographic distance, transmission characteristics, RAT type) based on current network conditions and handover requirements, optimizing both speed and reliability adaptively

Inventive Principle:

Principle #15Dynamics

3Reliability

If the identification process considers multiple factors including transmission characteristics and RAT types, then the quality of service is maintained, but the complexity of the identification process increases

Engineering Contradiction:

Improvequality of service maintenanceVSAvoidcomplexity of identification process

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The complex identification process is segmented into distinct evaluation modules: geographic distance calculation, transmission characteristic assessment, and RAT type compatibility checking. Each module handles a specific aspect independently, making the overall complex process manageable and maintainable

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The identification system is designed with universal evaluation criteria that can handle multiple factors (geographic distance, transmission characteristics, RAT types) through a unified framework. This multi-functional approach maintains quality of service while avoiding the need for separate complex procedures for each factor

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250113266A1Identifying neighbor access nodes in a wireless network

Publication Date: 2025.04.03 T MOBILE INNOVATIONS LLC

AI summary

Identifying neighbor access nodes in a wireless network includes determining a first region around an antenna of a source access node, the first region bound by a maximum sector distance from the antenna of the source access node within a communication sector of the antenna of the source access node, the source access node being an access node selected from a set of access nodes in a geographic region, determining a second region around the source access node, the second region bound by a maximum circumferential distance from the source access node, the maximum circumferential distance being less than the maximum sector distance, determining a third region around the source access node, the third region bound by the maximum circumferential distance from the source node within the communication sector, and identifying an access node from the set of access nodes as a neighbor access node to the source access node.