Communication Apparatus Parameter Set Selection for Stable Connectivity

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Solution Overview

Problem

In wireless communication systems, automatically setting communication parameters can lead to issues where inappropriate or low-security parameter sets are used, causing connection failures and difficulties in determining whether the problem is due to incorrect parameters or base-station preparation, especially when base-station reconstruction is involved.

Innovation Solution

A communication apparatus that automatically selects and prioritizes communication parameter sets based on security levels and communication standards, switching between sets to ensure a stable and secure connection by initially attempting connection with the highest security level and then reverting to previously successful sets if necessary.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If multiple communication-parameter sets are transmitted to enable automatic setting, then ease of operation is improved, but reliability deteriorates because there is no assurance that appropriate parameter sets are used for connection

Engineering Contradiction:
Improveautomatic parameter settingVSAvoidconnection success rate
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The base station performs network reconstruction and preparation in advance before accepting connection requests. This preliminary action ensures that the network is ready to accept connections using the transmitted parameter sets, preventing connection failures due to premature connection attempts during network reconstruction.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where the base station transmits parameter sets and monitors connection outcomes. When connection failures occur, the system uses this feedback to determine whether to retry with the same parameter set or switch to alternative parameter sets, thereby improving connection reliability while maintaining automatic operation.

Inventive Principle:
Principle #23Feedback

2Productivity

If connection processing is repeatedly attempted with identical communication parameters, then productivity is improved by reducing setup time, but reliability deteriorates because inappropriate parameter sets cause persistent connection failures

Engineering Contradiction:
Improveconnection establishment speedVSAvoidconnection success rate
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system dynamically adjusts the connection establishment process by monitoring failure patterns and adapting its behavior. When connection failures are detected, the system transitions from repeated attempts with identical parameters to switching between multiple parameter sets, optimizing both connection speed and success rate based on real-time conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention utilizes multiple communication parameter sets with different configurations. When connection failures occur, the system changes parameters by switching to alternative parameter sets rather than persisting with identical parameters, thereby resolving connection issues while maintaining efficient establishment speed.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If base-station network reconstruction is performed after automatic setting, then reliability is improved by ensuring proper network configuration, but loss of time increases due to connection rejection during reconstruction

Engineering Contradiction:
Improvenetwork configuration accuracyVSAvoidconnection establishment delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The base station performs network reconstruction as a preliminary action before accepting connection requests. By completing network configuration in advance, the system ensures reliable network setup while minimizing connection delays, as subsequent connections can be established immediately without waiting for reconstruction.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements periodic network reconstruction at appropriate intervals rather than continuously. This periodic approach maintains network configuration accuracy while minimizing the time loss from connection rejections, as the network is reconstructed only when necessary rather than during every connection attempt.

Inventive Principle:
Principle #19Periodic action

4Adaptability or versatility

If different base-station apparatuses with different reconstruction times are used, then adaptability is improved to accommodate various network configurations, but difficulty of detecting and measuring increases because it is hard to determine connection failure causes

Engineering Contradiction:
Improvecompatibility with different base stationsVSAvoidconnection failure diagnosis
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The system implements comprehensive feedback mechanisms that monitor connection outcomes and provide diagnostic information. By tracking connection attempts, parameter set usage, and failure patterns across different base stations, the system reduces the difficulty of diagnosing connection failures while maintaining adaptability to various base station reconstruction times.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The base station transmits parameter sets and prepares the network in advance before connection attempts. This preliminary preparation reduces the diagnostic complexity by ensuring that connection failures are not caused by timing issues during reconstruction, making it easier to identify whether failures are due to parameter incompatibility rather than base station preparation status.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2706789B1Communication apparatus, method for controlling a communication apparatus, and program
Publication Date: 2019.04.10 CANON KK
  • EP2706789B1 patent drawingFigure 1A~1B
  • EP2706789B1 patent drawingFigure 2
  • EP2706789B1 patent drawingFigure 3

AI summary

After connection to another communication apparatus (102) using a communication-parameter set fails, and thereafter, if connection to the other communication apparatus using another communication-parameter set is successfully established, the connection to the other communication apparatus using the communication-parameter set is attempted again.