Information Processing with External Cellular Authentication

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Solution Overview

Problem

Existing vehicles face challenges in maintaining communication connectivity due to generational changes in cellular network standards, necessitating costly replacements of built-in communication modules.

Innovation Solution

An information processing apparatus that utilizes an externally-connected communication apparatus, such as a SIM card, to access a cellular network and receive authentication from a communication system, allowing for seamless transition through stored authentication data without requiring a built-in cellular module.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a built-in cellular communication module is used to maintain communication connectivity, then communication reliability is improved, but device complexity and cost increase due to requiring hardware replacements with network standard changes

Engineering Contradiction:
Improvecommunication connectivityVSAvoidhardware replacement requirement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent separates the authentication function from the communication module by storing authentication data in general storage (e.g., file system or database) rather than embedding it in the cellular module itself. This segmentation allows the authentication credentials to be independently managed and updated without replacing the entire communication hardware, thus maintaining reliability while reducing device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent makes the authentication data storage universal by using a standard storage interface that can accommodate different types of authentication credentials for various network standards (4G, 5G, etc.). This multi-functionality allows the same hardware configuration to support multiple communication standards without requiring specialized storage for each standard, thereby reducing the need for hardware replacements.

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

2Reliability

If authentication data is stored in the communication module itself, then authentication reliability is improved, but adaptability deteriorates when network standards change

Engineering Contradiction:
Improveauthentication reliabilityVSAvoidnetwork standard compatibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent extracts the authentication data from the communication module and stores it in a separate, accessible storage location within the host system. This extraction allows the authentication credentials to be independently updated to match changing network standards without affecting the communication module hardware, thereby maintaining authentication reliability while improving adaptability to new standards.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements dynamic authentication data management by allowing the authentication credentials to be updated in the storage system according to network standard changes. This dynamic approach enables the system to adapt to evolving communication standards (from 4G to 5G and beyond) while maintaining reliable authentication through properly managed credential updates.

Inventive Principle:
Principle #15Dynamics

3Reliability

If a dedicated communication module with embedded authentication is used, then communication security is improved, but ease of repair and maintenance deteriorates

Engineering Contradiction:
Improvecommunication securityVSAvoidauthentication data maintenance
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent enables self-service maintenance of authentication data by implementing automated detection and update mechanisms. The system can automatically detect when authentication credentials need updating (e.g., when network standards change) and retrieve new credentials from remote servers, eliminating the need for manual intervention or specialized repair services while maintaining security through proper credential management.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4633089A1Information processing apparatus, communication method, and storage medium
Publication Date: 2025.10.15 TOYOTA JIDOSHA KK
  • EP4633089A1 patent drawingFigure 1
  • EP4633089A1 patent drawingFigure 2
  • EP4633089A1 patent drawingFigure 3

AI summary

An information processing apparatus (10) comprises a storage configured to store first authentication data for receiving authentication from a first communication system (2); a communication interface (105) capable of accessing a predetermined cellular network, the communication interface being for connecting to a communication apparatus (11) holding second authentication data; and a controller (101) configured to access the first communication system (2) via the communication apparatus (11) and the cellular network in a case where the communication apparatus (11) connects to the cellular network by using the second authentication data, and to receive authentication from the first communication system (2) by using the first authentication data.