Wireless Access Point State-Space Model for Interference Mitigation

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Solution Overview

Problem

Current technologies lack effective solutions for managing interference between multiple wireless access points, leading to suboptimal performance in densely populated areas, with existing methods failing to account for interactions and provide joint control to improve overall performance.

Innovation Solution

Implementing a state-space model that establishes communications interfaces with access points, identifies interfering nodes, collects data, and models relationships to quantify performance changes, allowing for optimization of access point configurations to mitigate interference and improve performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple access points operate within a geographic area to provide coverage, then network coverage is improved, but interference between access points increases

Engineering Contradiction:
Improvenetwork coverage areaVSAvoidinterference between access points
Core Design Contradiction:
Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The patent merges the control of multiple access points into a unified system that models their interactions as a single optimization problem. By combining individual access point control into a joint optimization framework, the system can coordinate their operations to achieve overall performance improvement while managing interference between them.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system changes operational parameters of access points (such as transmit power, channel selection, and timing) based on a modeled state-space representation. By dynamically adjusting these parameters according to the modeled interactions and performance predictions, the system optimizes the balance between coverage and interference management.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If access points operate independently without joint control, then device complexity is reduced, but overall network performance is suboptimal

Engineering Contradiction:
Improveoverall network performanceVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the complex network optimization problem into manageable components by modeling the system as a state-space with discrete states and transitions. This segmentation allows the complex interactions between multiple access points to be represented and optimized through a structured framework that breaks down the overall optimization into smaller, more manageable sub-problems.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system introduces a centralized controller or coordinator that acts as an intermediary between access points. This intermediary manages the joint optimization by collecting information from individual access points, modeling their interactions, and coordinating their operations to achieve overall performance improvement without requiring each access point to independently manage complex interactions.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If operational characteristics of one access point are changed to improve its performance, then individual performance is improved, but performance of other access points may be negatively affected

Engineering Contradiction:
Improveindividual access point performanceVSAvoidperformance impact on other access points
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system implements feedback mechanisms where the performance changes of individual access points are monitored and fed back into the state-space model. This feedback allows the model to capture the actual impact of operational changes on the overall network, enabling subsequent optimization decisions to account for these effects and adjust parameters to balance individual and collective performance.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3001887B1Method and apparatus for implementing wireless system discovery and control using a state-space
Publication Date: 2023.03.08 DZS LLC
  • EP3001887B1 patent drawingFigure 1A
  • EP3001887B1 patent drawingFigure 1B
  • EP3001887B1 patent drawingFigure 1C

AI summary

In accordance with embodiments disclosed herein, there are provided apparatuses, systems and methods for implementing wireless system discovery and control using a state-space. For example, such means may include: establishing, a communications interface between an access point optimizer and a wireless access point; identifying one or more interfering wireless nodes exhibiting electromagnetic interference upon the wireless access point; collecting data from the wireless access point; determining a model of the wireless access point and the one or more interfering wireless nodes by: (i) modeling communicative relationships and properties among the wireless access points and the one or more interfering wireless nodes exhibiting electromagnetic interference upon the wireless access point based at least in part on the data collected, and (ii) modeling an active state of the wireless access points representing a current configuration of the wireless access points having therein one or more configurable parameters for the wireless access points based at least in part on the data collected; and quantifying a change in performance of the wireless access points or the one or more interfering wireless nodes based on a state change affecting the model. Other related embodiments are disclosed.