Telematics Controller SMS Error Reporting

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current SMS protocols lack a mechanism to indicate application layer errors or result codes, leading to unnecessary retries and battery drain in vehicles, especially in areas with poor coverage, as there is no specific method to report application layer processing errors without additional SMS or data calls.

Innovation Solution

Incorporating a new RP-ERROR cause code and manufacturer-specific TP User Data into SMS deliver reports to indicate application layer errors, allowing for detailed error reporting within the existing SMS protocol, thereby reducing unnecessary retries and battery drain.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If the vehicle sends additional SMS or data calls to report application layer errors, then error information can be transmitted, but battery life is drained and unnecessary retries occur

Engineering Contradiction:

Improveerror information reportingVSAvoidbattery life

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

The patent combines error information reporting with the existing SMS deliver report mechanism. Instead of sending separate messages to report application layer errors, the error information is merged into the delivery report that is already being sent to acknowledge SMS receipt, thereby eliminating additional communications and reducing battery consumption

Inventive Principle:

Principle #5Merging (Combining)

2Loss of information

If the vehicle sends additional SMS or data calls to report application layer errors, then error information can be transmitted, but unnecessary retries occur

Engineering Contradiction:

Improveerror information reportingVSAvoidretry operations

Core Design Contradiction:

Loss of informationVSLoss of time

Solution Approach 1:

The patent implements a feedback mechanism where the vehicle sends detailed application layer error information back to the network through the SMS deliver report. This feedback allows the network to understand the actual error state and avoid sending commands that would fail, thereby reducing unnecessary retry operations and associated time losses

Inventive Principle:

Principle #23Feedback

3Loss of information

If the SMS protocol includes detailed application layer error information, then error reporting is comprehensive, but message size increases

Engineering Contradiction:

Improveerror information completenessVSAvoidmessage size

Core Design Contradiction:

Loss of informationVSQuantity of substance

Solution Approach 1:

The patent segments the error information into structured fields within the SMS deliver report, including error type identification, detailed error description, and optional additional information. This segmentation allows comprehensive error reporting while maintaining organized, efficient message structures that minimize unnecessary data redundancy

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10397756B1SMS Indication application response reporting

Publication Date: 2019.08.27 FORD GLOBAL TECH LLC

AI summary

A telematics controller is programmed to successfully receive a short message service (SMS) message from a service data network via a modem, identify an application layer error condition or other application level result code at the vehicle, and responsive to receipt of the SMS message, include information indicative of the application layer error condition or other application level result code in an SMS deliver report to send to the service data network.