Cross-Fabric ACL Control for Smart Terminal Configuration

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Solution Overview

Problem

In cross-Fabric scenarios, a configuration device in one Fabric cannot control administrator privileges shared with a configuration device in another Fabric, leading to arbitrary configuration modifications by the latter.

Innovation Solution

A wireless communication method that includes sending configuration information with a target access control list (ACL) to a smart terminal, allowing the smart terminal to determine and restrict the access privileges of a second configuration device based on the ACL.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a configuration device in Fabric A shares administrator privileges with a configuration device in Fabric B through out-of-band mechanism, then the second configuration device can establish connection and control smart terminal, but the first configuration device loses control over the administrator privileges shared

Engineering Contradiction:

Improveprivilege sharing capabilityVSAvoidprivilege control security

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments administrator privileges into specific configuration operations through Access Control Lists (ACLs). Instead of sharing complete administrator rights, the system divides privileges into discrete operational permissions that can be individually granted and controlled, allowing Fabric A to maintain oversight while enabling Fabric B's configuration device to perform specific tasks.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by assigning different access privilege levels to different configuration operations. The ACL mechanism allows specific operations to be permitted or restricted based on the source device, creating localized control policies that enable cross-Fabric configuration while maintaining security boundaries.

Inventive Principle:

Principle #3Local quality

2Ease of operation

If a configuration device in Fabric B obtains full administrator identity for smart terminal, then it can fully control and configure the smart terminal, but arbitrary configuration modifications cannot be prevented

Engineering Contradiction:

Improveconfiguration capabilityVSAvoidarbitrary configuration modification

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent implements preliminary anti-action by pre-configuring Access Control Lists that define which configuration operations are permitted. Before the second configuration device in Fabric B can modify smart terminal settings, the ACLs have already established restrictions on allowable operations, preventing arbitrary modifications while enabling necessary configuration tasks.

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

The patent changes the parameter of access privileges from a binary state (administrator/not administrator) to a multi-level permission system. By modifying how privileges are structured and granted, the system allows configuration capability while constraining it through operation-specific permissions defined in ACLs.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12532244B2Wireless communication method and configuration device

Publication Date: 2026.01.20 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

A wireless communication method and a configuration device are provided. The wireless communication method includes: a first configuration device sends configuration information to a smart terminal, wherein the configuration information includes at least a target ACL, and the target ACL is configured to indicate an access privilege that a second configuration device has for the smart terminal.