An esim data read-write external device and technical scheme

Abstract

This invention relates to the fields of electronic circuits and communications, specifically to a lightweight and portable external device and complete hardware and software solution for quickly reading and writing eSIM card data via Bluetooth, realizing the data reading and writing function of eSIM plug-in cards. It includes a PCB motherboard, software program, casing, mobile APP, and server. The USB Type-C port provides power to the entire device, allowing direct insertion into mobile devices such as smartphones and tablets with USB Type-C ports or USB Type-C power supplies. The motherboard is responsible for connecting various components for data communication and protocols. The Bluetooth chip provides Bluetooth connectivity, conforming to low-power standards. The serial port supports smart card (ISO 7816) mode, enabling Bluetooth protocol transmission of eSIM configuration file data. The SIM card slot is used for data connection of the eSIM plug-in card. Pin interfaces are used for software program burning. The casing features a notch for the SIM card slot for easy insertion and removal of the SIM card. The APP provides complete operation and information display for communication between the device and the server. This device and complete technical solution are suitable for IoT and consumer-grade eSIM card data reading and writing, with simple operation steps applicable to various needs in different usage scenarios.

Description

Technical Field

[0001] This invention relates to the fields of electronic circuits and communications, specifically to a lightweight and portable external device and a complete hardware and software solution for quickly reading and writing eSIM card data via Bluetooth to realize the data reading and writing function of eSIM plug-in cards. Background Technology

[0002] With the continuous upgrading of electronic communication technology, eSIM (embedded SIM card), a digital SIM technology directly integrated on the device's motherboard, is rapidly becoming widespread. eSIM is a new technology that overcomes the limitation of traditional physical SIM cards, which can only support one operator's network service. eSIM supports multiple operator configuration files, allowing users to read and write to switch operator services according to different needs and scenarios.

[0003] In the relevant eSIM card read / write methods, firstly, the device itself needs to support eSIM read / write functionality. This limits many terminal devices that do not support eSIM data read / write (including non-eSIM phones, tablets, IoT devices, etc.) from using eSIM technology, making hardware upgrades or replacements very costly. Secondly, even if the device supports eSIM read / write functionality, it may cause conflicts with the terminal device's communication module during eSIM data read / write. Additionally, some devices without screens are inconvenient for direct eSIM data read / write. Summary of the Invention

[0004] The purpose of this invention application is to provide a lightweight and portable device compatible with multiple devices, suitable for the Internet of Things and consumer applications, that enables fast and stable reading and writing of eSIM card data via Bluetooth, in order to solve the above-mentioned technical and cost efficiency problems. The apparatus and technical solution provided in this invention application are as follows:

[0005] An eSIM data reading and writing external device includes a PCB motherboard, software program, casing, mobile APP, and server.

[0006] The USB Type-C port provides power to the entire device and can be directly plugged into mobile devices such as smartphones and tablets equipped with USB Type-C or a USB Type-C power supply.

[0007] The main circuit board is responsible for connecting the data communication and protocols of various components.

[0008] The Bluetooth chip provides Bluetooth connectivity, complies with low-power standards, and the serial port supports smart card (ISO 7816) mode. It also implements Bluetooth protocol transmission technology for eSIM profile data.

[0009] The SIM card slot is used for data connection when inserting or removing eSIM cards.

[0010] The pin interface is used for burning software programs.

[0011] The SIM card slot notch on the outer casing makes it easy to insert and remove the SIM card directly.

[0012] The APP is responsible for connecting the device and the server.

[0013] First, correctly insert the eSIM card into the eSIM reader / writer's slot. Connect the device to a USB Type-C port (such as a mobile phone or power source) to initiate a circuit data self-test. Then, connect to the eSIM reader / writer via Bluetooth through the app, establish a connection with the eSIM, and read the eSIM data, including the eID. Enter the carrier activation code or scan a QR code. The app connects to the DP+ server for verification. It first checks if the submitted information and link are compliant, then confirms the accuracy and usability of the profile configuration file. If so, it establishes an SGP.22 secure channel, downloads the profile configuration file, and writes it to the eSIM via Bluetooth. Then, it actively executes the activation command. After successful data read / write, disconnect the device from the mobile app via Bluetooth, disconnect the device's power, and remove the eSIM card. At this point, the eSIM has network access permissions and can be used normally in other devices.

[0014] As can be seen, this invention is a lightweight and portable eSIM card data reading and writing device and complete technical solution suitable for the Internet of Things and consumer applications. Its operation is simple and applicable to various needs in different usage scenarios. Therefore, this invention is of great significance and value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure and outer casing of the eSIM data external device of this application; the logical methods of the embodiments of this application are not limited to circuit form and external shape;

[0016] Figure 2 A schematic diagram illustrating the application environment for implementing eSIM configuration file download communication in the external eSIM reader / writer device of this application;

[0017] Figure 3 The operation steps are illustrated in this application example, showing the complete operation process of connecting an external eSIM reader / writer via Bluetooth to download the eSIM profile configuration file and join the network. Detailed Implementation

[0018] The external eSIM reader / writer device and its hardware and software solution of this application will be described in detail below with reference to the accompanying drawings and embodiments. The described embodiments are only some embodiments of the invention of this application, and not all embodiments. Based on the embodiments of the invention of this application, all other embodiments obtained by those skilled in the art without inventive effort should fall within the scope of protection of the invention of this application.

[0019] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0020] like Figure 1 As shown, an eSIM data read / write device includes a PCB circuit board and a housing. The PCB circuit board is the main component for implementing the eSIM read / write configuration function of this application, including 1. the circuit board, 2. a Bluetooth chip, 3. a SIM card slot, 4. pin interfaces (VDD, GND, IO, CLK), and 5. a USB Type-C interface. The main parts of the housing are: 6. the motherboard housing and 8. the housing cap.

[0021] The device is powered by five USB Type-C ports, allowing direct connection to mobile devices such as smartphones and tablets with USB Type-C ports, or to a USB Type-C power source. The main circuit board handles data communication and protocols between the various components. A Bluetooth chip provides Bluetooth connectivity, conforms to low-power standards, and supports smart card (ISO 7816) mode via its serial port. A SIM card slot is used for eSIM data connection. A pin interface is used for software programming. The casing features a SIM card slot notch for easy SIM card insertion and removal.

[0022] Figure 2 This diagram illustrates the connection relationship between the eSIM data read / write external device provided in this application and the eSIM profile download method application during operation. The mobile app and eSIM device communicate via Bluetooth, and the mobile app includes, but is not limited to, computers and mobile phones. The SM-DP+ server acts as the management server for the operator's eSIM profile, and communicates with the mobile app using the SGP.22 protocol.

[0023] Figure 3This paper details the overall workflow of the eSIM reader / writer device proposed in this application, illustrating the communication process between the eSIM reader / writer device, the mobile app, and the server. First, the eSIM card is correctly inserted into the eSIM reader / writer device's slot. The device is then connected to a mobile phone or other device with a USB Type-C interface, or to a power source, triggering a circuit data self-test. Next, the app connects to the eSIM reader / writer device via Bluetooth, establishing a connection and reading eSIM data such as the eSIM's eID. An activation code from the carrier is entered or a QR code is scanned. The app connects to the DP+ server for verification, first checking the compliance of the submitted information and link, then confirming the accuracy and usability of the profile configuration file. If both are correct, an SGP.22 secure channel is established, the profile configuration file is downloaded, and written to the eSIM via Bluetooth. The activation command is then actively executed. After successful data read / write, the Bluetooth connection between the device and the mobile app is disconnected, the device is powered off, and the eSIM card is removed. At this point, the eSIM has network access permissions and can be used normally in other devices.

[0024] Compared with existing technologies, the present invention provides a lightweight and portable eSIM data reading and writing external device with a SIM card reader, an independent USB Type-C power port, Bluetooth data transmission, and a mobile app that connects to the server to read and write data with the eSIM. The operation process is visualized, making it suitable for IoT and consumer-grade eSIM card data reading and writing. Its simple operation makes it suitable for various needs in different usage scenarios. The design concept of this invention is not limited to this; any non-substantial modifications made to the invention using this concept shall be considered an infringement of the scope of protection of this invention.

Claims

1. A lightweight and portable external device and complete hardware and software solution for quickly reading and writing eSIM card data via Bluetooth to realize the data reading and writing function of eSIM cards. Its features include software programs, a mobile APP and server, a PCB circuit board, and a casing. The PCB board is the main component for implementing the eSIM read / write configuration function of this application, including the circuit board, Bluetooth chip, SIM card slot, pin interfaces (VDD, GND, IO, CLK), and USB Type-C interface. The casing mainly consists of: the motherboard casing and the casing cap.

2. The eSIM data read / write external device according to claim 1, characterized in that: The USB Type-C port provides a power interface for the entire device and can be directly plugged into mobile devices such as smartphones and tablets equipped with USB Type-C or a USB Type-C power supply.

3. The eSIM data read / write external device according to claim 1, characterized in that: The circuit board is responsible for connecting the various components for data communication and protocols.

4. The eSIM data read / write external device according to claim 1, characterized in that: The Bluetooth chip provides Bluetooth connectivity, complies with low power standards, and the serial port supports smart card (ISO7816) mode, enabling Bluetooth protocol transmission of eSIM profile data.

5. The eSIM data read / write external device according to claim 1, characterized in that: The SIM card slot is used for data connection of the eSIM card, and the pin interface is used for burning software programs.

6. The eSIM data read / write external device according to claim 1, characterized in that: The SIM card slot notch design on the casing makes it easy to insert and remove the SIM card directly.

7. The eSIM data read / write external device according to claim 1, characterized in that: The app provides complete operation and information display for communication between the connected device and the server.

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