Wireless Access Point Distress Message Reporting

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Solution Overview

Problem

Current systems lack an efficient method for detecting and diagnosing communication failures between a subscriber's gateway and the service provider, requiring subscriber intervention and leading to service disruptions.

Innovation Solution

Implementing a method where a gateway broadcasts probe request distress messages with a specific payload to neighboring access points, which can identify and forward failure reports to the service provider without subscriber intervention, using existing wireless communication protocols.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the service provider implements manual diagnostic tests through helpdesk intervention, then connection failure can be diagnosed, but subscriber burden and service disruption time increase

Engineering Contradiction:
Improveconnection failure detectionVSAvoidservice disruption time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The gateway performs self-diagnosis by automatically generating and transmitting distress messages when communication failures are detected. The system enables itself to report failures without external intervention, eliminating the need for helpdesk involvement in initial detection and diagnosis.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The gateway continuously monitors communication link status and provides feedback by sending distress messages when failures occur. This automatic feedback mechanism allows the service provider to receive real-time failure information without manual intervention, reducing both detection time and service disruption.

Inventive Principle:
Principle #23Feedback

2Loss of time

If the service provider implements automatic failure detection, then service disruption time is reduced, but system complexity increases

Engineering Contradiction:
Improveservice disruption timeVSAvoidfailure detection system
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The gateway uses its existing wireless communication capabilities to serve dual purposes: normal service communication and failure reporting. By leveraging the same wireless interface and protocol stack for both operational communication and distress message transmission, the system avoids adding dedicated hardware while achieving automatic failure detection.

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

Solution Approach 2:

The distress message acts as an intermediary carrier that conveys failure information from the gateway to the service provider. This standardized message format serves as a universal intermediary that can be transmitted through existing wireless infrastructure without requiring complex dedicated reporting channels or protocols.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If the gateway transmits distress messages using existing wireless protocols, then no hardware modifications are needed, but message identification and routing complexity increases

Engineering Contradiction:
Improvegateway deploymentVSAvoidmessage processing
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The distress message uses a distinctive payload format and identifier that acts as a 'color code' for message classification. Receivers can quickly identify distress messages through this unique signature in the payload, enabling simple filtering and routing decisions without complex analysis of the message content.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The wireless communication protocol stack is segmented into distinct functional layers: normal data communication handles service traffic while the distress message mechanism operates as a separate signaling layer. This segmentation allows distress messages to be processed independently through dedicated identification and routing logic, simplifying the overall processing complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3422638B1Method of communication failure reporting and corresponding apparatus
Publication Date: 2022.10.26 INTERDIGITAL CE PATENT HOLDINGS SAS
  • EP3422638B1 patent drawingFigure 1
  • EP3422638B1 patent drawingFigure 2
  • EP3422638B1 patent drawingFigure 3

AI summary

When a failure is detected of a communication link between a wireless access point and a service provider providing services to devices in proximity of said wireless access point, a probe request message is broadcasted on one or more wireless communication channels. The broadcasted probe request message includes a particular payload enabling the message to be identified as being a distress message reporting a failure of the communication link. Another wireless access point within wireless communication reach receiving a distress message may transfer a communication link failure report to the service provider in place of the wireless access point of which the communication link fails.