Remote AT Command Control via SMS Intermediary

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Solution Overview

Problem

Existing methods for controlling remote electronic devices are limited to wired environments and lack the capability for secure, wireless remote access using standardized AT commands.

Innovation Solution

A method and apparatus that utilize pre-defined 3GPP/3GPP2 standard AT commands to enable communication between remotely located electronic devices, allowing for secure access and control through SMS, with encryption and authentication mechanisms to prevent unauthorized access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If wired DCE-DTE communication using AT commands is used, then control capability of electronic device is achieved, but wireless remote access capability is lost

Engineering Contradiction:

Improvewireless remote access capabilityVSAvoidcommunication interface complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent makes the electronic device universal by enabling it to receive and process AT commands through multiple communication interfaces (wired serial interface and wireless SMS interface). The AT command module is designed to handle commands from either interface, allowing the device to function in both wired and wireless environments without requiring separate control systems.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces SMS as an intermediary communication channel between the remote controlling device and the controlled electronic device. The SMS message serves as a carrier that transports AT commands wirelessly from the controlling device through the network to the controlled device, enabling wireless remote access without direct wireless communication hardware between the two devices.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If remote control capability is added, then accessibility is improved, but security vulnerabilities increase

Engineering Contradiction:

Improveremote accessibilityVSAvoidsecurity against unauthorized access

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent implements preliminary authentication actions before executing AT commands. The controlling device and controlled device establish security credentials in advance, and the system performs authentication checks before processing remote control commands. This preliminary security measure ensures that only authorized users can access and control the electronic device remotely.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent incorporates feedback mechanisms where the controlled electronic device sends confirmation responses back to the controlling device regarding command execution status and authentication results. This feedback loop allows the system to verify successful authentication and command execution, providing security monitoring and control.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9119043B2Apparatus and method for providing remote communication of an electronic device in a communication network environment

Publication Date: 2015.08.25 SAMSUNG ELECTRONICS CO LTD

AI summary

A method and an apparatus conduct remote communication with an electronic device in a communication network environment, with the method including receiving a short message (SM) including an AT command from a controlling electronic device, analyzing and parsing the AT command for determining at least one task to be performed at the electronic device upon detecting that the SM is for a control operation, and performing the at least one task.