Wireless Network Path Selection Using Transmission Reliability Values

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Solution Overview

Problem

Existing methods for data transmission in wireless networks fail to accurately assess and improve the quality of communication links due to signal interference and fading, leading to unsatisfactory transmission quality, especially when direct links are unavailable or of poor quality.

Innovation Solution

Assigning characteristic values to individual communication links and paths that represent the probability of correct data transmission, allowing for the selection of the most reliable path based on these values, which can be decentralized or centralized, and using redundant paths to enhance reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single communication link between two subscribers is modeled in binary terms as existing or non-existing, then the network structure is simple to manage, but the quality of data transmission cannot be adequately assessed due to signal fading and interference

Engineering Contradiction:
Improvenetwork model simplicityVSAvoiddata transmission quality assessment
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent transforms the binary communication link model into a multi-parameter model by introducing characteristic values that represent transmission quality. Each communication link is assigned a characteristic value based on signal strength, interference levels, and other transmission parameters, enabling precise quality assessment while maintaining manageable network complexity through systematic evaluation

Inventive Principle:
Principle #35Parameter changes

2Productivity

If data is transmitted over a single communication path, then the transmission process is simple and fast, but the reliability is low due to potential interference and signal fading on that single path

Engineering Contradiction:
Improvetransmission speedVSAvoiddata transmission reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent performs preliminary evaluation of multiple communication paths by assigning characteristic values to each path based on link qualities before actual data transmission. This pre-assessment allows the system to identify and select the most reliable path in advance, ensuring both fast transmission and high reliability without requiring complex real-time adjustments during data transfer

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces characteristic values as intermediary parameters that mediate between the physical communication channels and the data transmission process. These characteristic values serve as quality indicators that enable intelligent path selection, allowing the system to navigate through interference and fading issues by routing data through optimal paths identified by these intermediary measurements

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If multiple communication paths are evaluated and selected based on characteristic values, then the data transmission quality is improved, but the computational complexity and time for path selection increases

Engineering Contradiction:
Improvedata transmission qualityVSAvoidpath selection time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent simplifies the path selection process by transforming complex multi-dimensional transmission quality assessments into single characteristic value parameters for each path. This parameter consolidation allows for rapid comparison and selection of optimal paths while maintaining comprehensive quality evaluation, significantly reducing computational complexity and path selection time

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12382362B2Method for data transmission and technical system
Publication Date: 2025.08.05 SEW EURODRIVE GMBH & CO KG
  • US12382362B2 patent drawing
  • US12382362B2 patent drawing
  • US12382362B2 patent drawing

AI summary

In a method for data transmission between first and second subscribers of a wireless network in a technical system, the network has a plurality of subscribers, and individual communication links between respectively two subscribers of the wireless network are each assigned a characteristic value which describes a probability of correct data transmission via the respective communication link. A plurality of communication paths between the first subscriber and the second subscriber, each including at least one communication link between respectively two subscribers, are each assigned a characteristic value which describes a probability of correct data transmission via the respective communication path. At least one communication path for data transmission is selected depending on the characteristic values assigned to the communication paths. Data is transmitted between the first and second subscribers subscriber via the selected communication path.