METHOD FOR DOWNLOADING FILES FROM AN OTA PLATFORM OVER-THE-AIR TO SECURE ELEMENTS AND CORRESPONDING OTA PLATFORM

摘要

The application relation to the download of files from an OTA platform over-the-air to secure elements, such as SIM cards, UICCs, or embedded UICCs. Such a download is typically realized by OTA over SMS systems or OTA over HTTP. However, these solutions have some drawbacks, such as download of all files of a roaming campaign even though not every file needs to be updated. This problem is solved in that the OTA platform keeps track for every file which version is installed in the UICC and sends only those files for which a newer version has been released. Therefore, the application proposes a method for downloading files from an OTA platform over-the-air to secure elements cooperating with terminals, these files comprising roaming information allowing the secure elements to connect to networks different from their Home Public Land Mobile Networks, the method consisting in, for each secure element: Polling the OTA platform by the secure element (3); Checking if a new release of at least one file for which the owner of the secure element has contracted a subscription is available (4); - If this check is positive, sending only the new release to the secure element and storing this new release in the secure element (5).