TC65 JAVA User's Guide

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8 Over The Air Provisioning (OTAP)

8.1Introduction to OTAP

OTA (Over The Air) Provisioning of Java Applications is a common practice in the Java world. OTAP describes mechanisms to install, update and delete Java applications over the air. The TC65 product implements the Over The Air Application Provisioning as specified in the IMP-NG standard (JSR228).

The OTAP mechanism described in this document does not require any physical user interaction with the device; it can be fully controlled over the air interface. Therefore it is suitable for Java devices that are designed not to require any manual interaction such as vending machines or electricity meters.

8.2OTAP Overview

To use OTAP, the developer needs, apart from the device fitted with the TC65 module, an http server, which is accessible over a TCP/IP connection either over GPRS or CSD, and an SMS sender, which can send Class1, PID $7d short messages. This is the PID reserved for a module’s data download.

Java Application Server

 

HTTP/TCP/IP

(HTTP Server)

 

.jar file

 

over GPRS/CSD

.jad file

 

 

 

 

 

OTAP Controller

(SMS Sender)

Figure 17: OTAP Overview

Device containing TC65

.jad file

.jar file

The Java Application Server (http Server) contains the .jar and the .jad file to be loaded on the device. Access to these files can be protected by http basic authentication.

The OTAP Controller (SMS Sender) controls the OTAP operations. It sends SMs, with or without additional parameters, to the devices that are to be operated. These devices then try to contact the http server and download new application data from it. The OTAP Controller will not get any response about the result of the operation. Optionally the server might get a result response over http.

There are two types of OTAP operations:

•Install/Update: A new JAR and JAD file are downloaded and installed.

•Delete: A complete application (.jar, .jad, all application data and its directory) is deleted.

TC65 JAVA User's Guide_V05

Page 39 of 90

26.09.2005

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Siemens TC65 manual Over The Air Provisioning Otap, Introduction to Otap, Otap Overview
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TC65 specifications

The Siemens TC65 is a compact and powerful GSM/GPRS module designed for a wide range of mobile communication applications. With its robust features, the TC65 perfectly meets the growing demands for connectivity in various industries, including automotive, telematics, and industrial automation.

A standout feature of the TC65 is its compact size, allowing it to be easily integrated into various devices without compromising on performance. The module supports GSM (Global System for Mobile Communications) and GPRS (General Packet Radio Service), providing reliable and efficient voice and data transmission.

One of the key technologies incorporated in the TC65 is its integrated TCP/IP stack, which allows for seamless internet connectivity and enables application developers to create IoT solutions with ease. This capability is essential for remote monitoring, data logging, and other applications that require continuous data exchange.

The TC65 also boasts extensive multimedia capabilities, including support for SMS, MMS, and voice calls. This makes it suitable for applications that require not only data transmission but also communication features. Additionally, it supports various codecs for voice compression, ensuring high-quality audio in voice applications.

Enhanced security features are another highlight of the TC65. It incorporates comprehensive security protocols to safeguard data transmission, making it suitable for sensitive applications in finance, healthcare, and other critical sectors. The module also includes an integrated SIM application toolbox that supports the development of secure and customizable applications.

For developers, the TC65 offers an easy-to-use software development kit (SDK), simplifying the process of application development. This means that businesses can quickly create and deploy solutions tailored to their specific needs.

The module operates across a wide voltage range and is designed to tolerate challenging environmental conditions, making it ideal for industrial use. It supports various interfaces, including UART, GPIO, and I2C, enabling it to connect with a variety of peripherals and sensors, thus expanding its usability.

In summary, the Siemens TC65 combines compact design, versatile communication capabilities, advanced security features, and developer-friendly resources, making it an excellent choice for anyone looking to implement reliable and sophisticated GSM/GPRS communication in their applications. The TC65 is a valuable asset in the evolving landscape of connected devices and IoT solutions.
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