Method for quickly downloading eSIM card

A fast and transaction processing technology, applied in electrical components, wireless communication, network data management, etc., can solve the problem of slow download performance of eSIM card, achieve the effect of reducing transaction submission times, increasing remote download speed, and improving download performance

Pending Publication Date: 2021-01-05
BEIJING CEC HUADA ELECTRONIC DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the current problem of slow eSIM card download performance, the present invention provides a high-performance eSIM card download method, which can significantly reduce the number of transaction submissions during the Profile download process and improve the remote download speed of eSIM card products

Method used

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  • Method for quickly downloading eSIM card
  • Method for quickly downloading eSIM card
  • Method for quickly downloading eSIM card

Examples

Experimental program
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Embodiment Construction

[0022] Java Card platform general transaction process, see figure 1 .

[0023] In the present invention, eSIM downloads cross-APDU transaction processing flow, see figure 2 .

[0024] A method for quickly downloading an eSIM card provided by the present invention will be further described below in conjunction with the accompanying drawings and examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] 1. The eSIM fast download flow chart of the embodiment, as attached image 3 shown. Consider that the eSIM card is a multi-application card that supports multiple logical channels. When a profile is downloaded on a certain channel (eSIM card does not support simultaneous download of multiple profiles), other channels may have applications that need to use the transaction mechanism provided by the Java platf...

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Abstract

The invention discloses a method for quickly downloading an eSIM card, which is used for carrying out atomicity protection on key data writing through a cross-APDU transaction mechanism, so that the problem of NVM data instability caused by power failure in a downloading process is solved, and the problem of slow downloading performance is also solved. The method provided by the invention comprises the following steps: when an eSIM card starts to download a profile, starting transaction processing; when profile downloading is finished after processing of the APDUs, submitting transaction processing; and in a plurality of APDU processing processes, only starting transaction processing once.

Description

technical field [0001] The invention relates to the technical field of smart cards, in particular to the field of smart cards required to support the eSIM function. Background technique [0002] The eSIM card supports remote customization services and remote download of multiple telecom profiles. During the downloading of the telecom profile, a large number of telecom files, MNOSD and SSD will be created, the package will be downloaded, and the applet will be installed. All these operations involve space allocation in the NVM area. The allocation of space in the NVM area and the writing of NVM addresses in system entries (including object management tables and file management tables, etc.) need to ensure atomicity to avoid power-off instability and space leaks (the space cannot be recovered after allocation). [0003] Currently, eSIM cards are implemented based on the Java Card platform. On the Java platform, the transaction mechanism is used to ensure the atomicity of mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W8/20H04W8/24H04W8/18
CPCH04W8/205H04W8/245H04W8/183
Inventor 闫建丽袁巧
Owner BEIJING CEC HUADA ELECTRONIC DESIGN CO LTD
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