Partial Failure Messaging in Cellular Gateway Devices

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Solution Overview

Problem

Current cellular network systems fail to efficiently manage partial failures in gateway devices, leading to stale sessions being maintained for extended periods as the authentication device only receives failure information after all gateway device components fail, resulting in unnecessary clearance of all sessions.

Innovation Solution

Implementing a method where the gateway device transmits a partial failure message to the authentication device, including an identifier of the failed part, allowing the authentication device to specifically clear sessions associated with that part, rather than all sessions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the authentication device waits for all gateway device parts to fail before receiving failure information, then the system maintains simplicity in failure detection, but stale sessions are maintained for extended periods resulting in loss of time and reduced productivity

Engineering Contradiction:
Improvefailure detection mechanismVSAvoidsession maintenance duration
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The gateway device is segmented into multiple independent parts (cards), each capable of maintaining sessions. When a part fails, it sends individual failure messages with part identifiers, allowing the authentication device to clear only the affected sessions rather than waiting for complete system failure or clearing all sessions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gateway device implements continuous monitoring of its parts and provides immediate feedback to the authentication device when a part fails. This feedback mechanism includes transmitting failure messages with specific part identifiers, enabling real-time session management and preventing extended stale session maintenance.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the authentication device clears all sessions upon receiving any failure message, then session management is simplified, but unnecessary sessions are cleared resulting in loss of information and reduced productivity

Engineering Contradiction:
Improvesession clearance operationVSAvoidvalid session data
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

Sessions are segmented and associated with specific gateway device parts through part identifiers. When a failure message is received, the authentication device uses the part identifier to clear only the sessions corresponding to that specific part, preserving valid sessions associated with other healthy parts.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The failure message includes a part identifier that provides local information about which specific component failed. This allows the authentication device to apply the clearance operation locally to only the affected sessions rather than globally to all sessions, maintaining data integrity for unaffected sessions.

Inventive Principle:
Principle #3Local quality

3Measurement precision

If the gateway device transmits detailed partial failure messages with part identifiers, then session management precision is improved, but message complexity and information processing requirements increase

Engineering Contradiction:
Improvefailure identification precisionVSAvoidmessage structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The critical part identifier is extracted from the complex failure information and included in the failure message. This extraction approach provides the authentication device with the essential information needed for precise session management without requiring transmission or processing of the entire complex failure state.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP2472930B1Partial failure messaging
Publication Date: 2020.11.25 JUNIPER NETWORKS INC
  • EP2472930B1 patent drawingFigure 1
  • EP2472930B1 patent drawingFigure 2
  • EP2472930B1 patent drawingFigure 3

AI summary

A system is configured to: receive a message from a gateway device; identify one or more sessions corresponding to an identifier included in the message; and clear the one or more corresponding sessions. The identifier may correspond to a part of the gateway device where a session is stored or maintained for a mobile device to connect to a server device.