Telemetry Application on SIM Card for GSM Control Channel
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Solution Overview
Problem
Existing telemetry systems require costly and time-consuming customization of firmware in mobile equipment by manufacturers, leading to inconsistencies across different devices, as they are typically programmed independently for each type of equipment.
Innovation Solution
Implementing telemetry applications on a Subscriber Identity Module (SIM) card using the SIM Application Toolkit (SAT) and GSM standard functions, allowing encoding and transmission of telemetry data within supplementary services messages over a control channel, enabling machine-to-machine communication without human intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If telemetry applications are programmed into firmware of mobile equipment, then the application can be implemented in the mobile device, but it requires costly and time-consuming customization for each manufacturer leading to inconsistencies
Solution Approach 1:
The patent introduces a SIM card as an intermediary carrier for the telemetry application. Instead of programming firmware directly into each mobile equipment manufacturer's device, the application is stored on a standardized SIM card that can be inserted into any compatible device. This mediator approach eliminates the need for manufacturer-specific customization while ensuring consistent application behavior across different devices.
Solution Approach 2:
The SIM card serves multiple functions: it stores subscriber identity information, security credentials, and now telemetry applications. By making the SIM card a universal platform that can host applications independently of the mobile equipment manufacturer, the system achieves multi-functionality and eliminates the need for separate firmware customization for each device type.
2Reliability
If telemetry applications are customized for each mobile equipment manufacturer, then the application can be implemented in the device, but it is time-consuming and costly
Solution Approach 1:
The SIM card acts as a pre-configured intermediary that already contains the telemetry application. Rather than spending time customizing firmware for each manufacturer, the application is deployed once to the SIM card during manufacturing, and then the SIM card can be rapidly deployed to any mobile device without additional customization time.
Solution Approach 2:
The telemetry application is prepared and loaded onto the SIM card in advance during SIM card manufacturing. This preliminary action eliminates the need for time-consuming firmware customization at the mobile equipment manufacturer stage, as the application is already ready to execute when the SIM card is inserted into the device.
3Extent of automation
If telemetry data is transmitted over control channel using supplementary services message, then machine-to-machine communication is enabled, but standard GSM channels are used requiring adaptation
Solution Approach 1:
The SIM card application leverages existing universal GSM supplementary services messages and control channels for data transmission. By using these standardized, multi-functional GSM mechanisms, the system enables machine-to-machine communication without requiring device-specific adaptations, as these channels and message types are universally supported across all GSM devices.
Data Source
AI summary
Embodiments of the invention provide methods and apparatuses for implementing telemetry applications with the SIM card of a mobile equipment. For one embodiment of the invention the telemetry application allows the encoding of TAD within a supplementary services message and transmission of the TAD over a control channel of a GMS telecommunications system. For one embodiment of the invention the telemetry application allows the decoding of caller identification message received from a CMS to obtain the TAD.