Model Repository Deletion on User Consent Revocation

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Solution Overview

Problem

The challenge of ensuring data privacy security for a terminal device that has canceled data authorization, particularly in managing models stored in a model repository function network element, remains unresolved.

Innovation Solution

A method and apparatus that enable the data analytics function network element to send a model delete request to the model repository function network element based on user consent change information, facilitating the deletion of models corresponding to terminal devices that have canceled data authorization, thereby enhancing data privacy security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If models are stored in the model repository function network element for future use, then model utilization efficiency is improved, but data privacy security deteriorates when terminal devices cancel authorization

Engineering Contradiction:

Improvemodel utilization efficiencyVSAvoiddata privacy security

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system performs preliminary actions by storing models in the model repository function network element before authorization cancellation occurs. When authorization is canceled, the system proactively identifies and deletes the corresponding models, preventing privacy breaches before they can occur rather than reacting after a breach.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The data analytics function network element receives feedback about authorization status changes from the unified data management network element. This feedback mechanism enables the system to continuously monitor authorization states and automatically trigger model deletion when authorization is canceled, dynamically adjusting the system state to maintain privacy security.

Inventive Principle:

Principle #23Feedback

2Quantity of substance

If models are retained after authorization cancellation for potential future use, then resource utilization is improved, but harmful factors increase due to potential data privacy breaches

Engineering Contradiction:

Improvemodel retentionVSAvoiddata privacy breach risk

Core Design Contradiction:

Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The system extracts and removes the harmful element (models associated with canceled authorization) from the repository. By identifying models linked to terminal devices that have canceled authorization and deleting them, the system eliminates the source of potential privacy breaches while preserving models associated with active authorizations.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system discards models that are no longer authorized for use and recovers storage space for future authorized models. This principle allows the system to systematically remove unauthorized models while maintaining a repository of authorized models, optimizing both security and resource utilization.

Inventive Principle:

Principle #34Discarding and recovering

3Reliability

If the system automatically deletes models upon authorization cancellation, then data privacy security is improved, but device complexity increases due to additional management mechanisms

Engineering Contradiction:

Improvedata privacy securityVSAvoidmodel management complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The unified data management network element serves as an intermediary that centralizes authorization management. Instead of each network element independently tracking authorization states, the unified element manages all authorization information and notifies relevant elements of changes, simplifying the overall system architecture while ensuring security.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The model repository function network element is designed with multi-functionality, serving both as a storage repository for models and as an active participant in authorization compliance. It receives deletion requests, executes model removal, and maintains the correspondence between models and authorization states, reducing the need for separate dedicated deletion mechanisms.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260012400A1Information transmission method and apparatus

Publication Date: 2026.01.08 HUAWEI TECH CO LTD

AI summary

An information transmission method and an apparatus are provided. In the method, a data analytics function network element receives user consent change information from a unified data management network element, where the user consent change information is used to represent that a first terminal device no longer authorizes a core network element to collect and use data of the first terminal device, and the data analytics function network element and a model repository function network element are the core network element. The data analytics function network element sends a model delete request to the model repository function network element based on the user consent change information, where the model delete request is used to request the model repository function network element to delete a first model corresponding to the first terminal device.