WLAN Channel Capacity Determination for Network-Wide RRM Optimization

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Solution Overview

Problem

Current radio resource management systems in wireless communication networks lack a network-wide view of performance, limiting optimization efforts as they rely on per-access-point metrics that fail to account for network-wide impacts of configuration changes.

Innovation Solution

A method and system that determine the channel capacity of access points in a wireless local area network (WLAN) by retrieving channel usage and data transmission measurements, allowing for the management of radio resources based on these determinations and network performance statistics, enabling comparison of RRM configuration impacts across the network.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If per-access-point metrics are used for network optimization, then individual access point performance can be monitored, but a network-wide view of performance is not available

Engineering Contradiction:
Improveaccess point performance monitoringVSAvoidnetwork-wide performance view
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent combines multiple per-access-point channel capacity measurements into a unified network-wide performance metric. The network controller aggregates channel capacity data from multiple access points to provide a comprehensive view of overall network performance, enabling operators to assess the impact of RRM configuration changes across the entire network rather than at individual access point levels.

Inventive Principle:
Principle #5Merging (Combining)

2Extent of automation

If centralized RRM network controllers are deployed for continuous network performance monitoring and optimization, then network level configuration parameters can be controlled, but the ability to ascertain network-wide performance effects of parameter modifications is limited

Engineering Contradiction:
Improvecontinuous network performance monitoringVSAvoidnetwork-wide performance assessment capability
Core Design Contradiction:
Extent of automationVSLoss of information

Solution Approach 1:

The patent implements a feedback mechanism where the network controller determines channel capacity metrics for multiple access points and uses these measurements to assess network-wide performance. This feedback loop enables the controller to evaluate the effects of RRM configuration parameter modifications across the entire network, allowing for data-driven optimization decisions based on actual network-wide performance impacts.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3796700B1Network performance framework for wireless local area networks
Publication Date: 2022.10.12 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • EP3796700B1 patent drawingFigure 1
  • EP3796700B1 patent drawingFigure 2
  • EP3796700B1 patent drawingFigure 3A

AI summary

Methods and systems are provided for the determination of the channel capacity of access points in a wireless communication network. Methods and systems are also provided for the management of radio resources in a wireless communication network based at least in part on the determined channel capacity of the access points and/or on at least one network performance statistic derived therefrom.