WO2023124258A1

WO2023124258A1 - Method and apparatus for remotely accessing subscriber identity module (sim) card

Info

Publication number: WO2023124258A1
Application number: PCT/CN2022/119192
Authority: WO
Inventors: 徐自翔; 宋昊; 何彦召; 赵昕扬
Original assignee: 荣耀终端有限公司
Priority date: 2021-12-31
Filing date: 2022-09-16
Publication date: 2023-07-06
Also published as: CN116419202B; CN116419202A; WO2023124258A9

Abstract

Embodiments of the present application relate to the technical field of terminals, and provide a method and apparatus for remotely accessing a subscriber identity module (SIM) card. The method for remotely accessing a SIM card is applied to a system for remotely accessing the SIM card. The system for remotely accessing the SIM card comprises: a first device and a second device. The method comprises: the first device sends a remote SIM request to the second device, wherein the remote SIM request is used for instructing the first device to request to remotely access a SIM card of the second device; the second device sends, to the first device, response data corresponding to the remote SIM request, wherein the response data corresponding to the remote SIM request is used for instructing the second device to allow the first device to remotely access the SIM card of the second device; the first device accesses the SIM card of the second device. In this way, the first device and the second device can support the remote access appeal of a remote device to the SIM card by means of data interaction.

Description

Method and device for remote accessing subscriber identity module SIM card

This application claims the priority of the Chinese patent application with the application number 202111679793.0 and the application title "Method and device for remote accessing subscriber identity module SIM card" submitted to the State Intellectual Property Office of China on December 31, 2021, the entire content of which is passed References are incorporated in this application.

technical field

The present application relates to the field of terminal technology, and in particular to a method and device for remotely accessing a Subscriber Identity Module (SIM) card.

Background technique

A Subscriber Identity Module (SIM) can be understood as a module that provides subscriber information in a wireless cellular communication system, uses a mobile cellular network, and supports SIM-related functions. For example, an electronic device equipped with a SIM card slot and a card reading device can register with a mobile cellular network by inserting a SIM card, that is, the cellular communication system can identify specific user information through the SIM card.

Usually, for the same SIM card, when the user wants to switch the SIM card to other electronic devices for use, it is necessary to manually perform operations of pulling out and inserting the card so that other electronic devices can realize access to the SIM.

However, the above-mentioned method of switching the SIM card by plugging and unplugging the card cannot support the remote access request of the remote device to the SIM card.

Contents of the invention

Embodiments of the present application provide a method and device for remotely accessing a SIM card of a subscriber identification module, so that the first device and the second device can exchange data to support the remote device's remote access request for the SIM card, and then realize the communication between the multiple devices. Distributed SIM card access between devices, establishing a remote connection, so that the device can perform function switching between remote SIM and local SIM.

In the first aspect, the embodiment of the present application provides a method for remotely accessing a SIM card, which is applied to a system for remotely accessing a SIM card. The system for remotely accessing a SIM card includes: a first device and a second device, and the method includes: sending the first device to a second device. The second device sends a remote SIM request; wherein, the remote SIM request is used to indicate that the first device requests remote access to the SIM card of the second device; the second device sends response data corresponding to the remote SIM request to the first device; wherein, the remote SIM request The corresponding response data is used to instruct the second device to allow the first device to remotely access the SIM card of the second device; the first device accesses the SIM card of the second device. In this way, the first device and the second device can exchange data to support the remote access request of the remote device to the SIM card.

In a possible implementation, after the first device sends the remote SIM request to the second device, the method further includes: the second device switches the SIM card mode of the second device to the remote service mode according to the remote SIM request; the remote service mode It is used to realize that the second device shares the SIM card of the second device with the first device. In this way, the second device can provide switching of the remote service mode, allowing remote access of the first device.

In a possible implementation, after the second device sends the response data corresponding to the remote SIM request to the first device, the method further includes: the first device switches the SIM card mode of the first device to the remote client mode; the remote client mode Used to instruct the first device to use the SIM card of the second device. In this way, the first device can use the SIM card of the second device by switching the remote client mode.

In a possible implementation manner, the first device accessing the SIM card of the second device includes: the first device sends a reset response ATR request to the second device; the second device sends an ATR response to the first device according to the ATR request; The first device sends an APDU request to the second device; the second device sends an APDU result to the first device according to the APDU request; the first device accesses the SIM card of the second device according to the APDU result. In this way, the SIM card information of the second device can be accessed between the first device and the second device through an ATR request and an APDU request.

In a possible implementation manner, before the first device sends the remote SIM request to the second device, the method further includes: the first device sends a first request to the second device; the first request is used to indicate that the first device requests the same The two devices establish a connection; the second device sends response data corresponding to the first request to the first device according to the first request; the response data corresponding to the first request is used to instruct the second device to allow establishing a connection with the first device. In this way, the first device and the second device can support subsequent remote SIM access by establishing a connection.

In a possible implementation, the system for remotely accessing the SIM card further includes: a third device, where the first device sends a remote SIM request to the second device, including: the first device sends a remote SIM request to the second device through the third device ask.

In a possible implementation, the remote SIM request includes a temporary token message, and the system for remotely accessing the SIM card further includes: a fourth device, and the method further includes: the first device sends a second request to the fourth device; the second request contains a temporary token message; the second device sends a third request to the fourth device; the third request contains a temporary token message; the second device sends the response data corresponding to the remote SIM request to the first device, including: when the fourth device determines When the temporary token message in the second request is consistent with the temporary token message in the third request, the second device sends response data corresponding to the remote SIM request to the first device through the fourth device. In this way, the exchange center can authenticate the device pair through a temporary negotiated password, such as a temporary token message, which reduces the complexity of the system, reduces the risk of account and password leakage, and enhances the security of the system.

In a possible implementation manner, the system for remotely accessing the SIM card further includes: a fourth device, the fourth device is connected to the third device through an interface, and the method further includes: the first device sends a fourth request to the fourth device; The fourth request includes the first encrypted information for logging in to the preset account; the fourth device sends the fourth request to the third device; the second device sends the fifth request to the fourth device; the fifth request includes the information for logging in to the preset account; The second encrypted information of the account; the fourth device sends a fifth request to the third device; the second device sends the response data corresponding to the remote SIM request to the first device, including: when the fourth device determines that the first encrypted message is consistent with the second encrypted When the messages are consistent, the second device sends response data corresponding to the remote SIM request to the first device through the fourth device. In this way, both the first device and the second device can perform device-to-device authentication through the device cloud connected to the switching center, thereby enhancing the security of data transmission during remote SIM access.

In a possible implementation manner, before the first device sends the remote SIM request to the second device through the third device, the method further includes: the second device reports the SIM card information of the second device to the third device; The third device sends a sixth request; the sixth request is used to request to query available remote SIM cards; the third device sends the SIM card information of the second device to the first device according to the sixth request. In this way, the first device can access the SIM card information of the second device through the third device, increasing the security of data access.

In a possible implementation, before the first device sends the remote SIM request to the second device, the method further includes: the first device displays a SIM card management interface, and the SIM card management interface includes an option for setting the use of a remote SIM card ; When the first device receives a trigger for setting the option to use a remote SIM card, it displays the identification of one or more available devices, and the available device is a device that supports the remote SIM card access function; the first device sends a message to the second device Sending the remote SIM request includes: sending the remote SIM request to the second device when the first device receives a trigger on the identification of the second device among the available devices. In this way, the user can perform remote SIM access to the second device according to the trigger for the SIM card management interface, thereby improving user experience of using the remote SIM card function.

In a possible implementation manner, after the first device accesses the SIM card of the second device, the method further includes: the first device displays an identifier for identifying a connected SIM card. In this way, the user can determine whether the first device establishes a remote connection with the second device through the identification, thereby improving user experience of using the remote SIM card function.

In a possible implementation manner, after the first device displays the identifier for identifying the connected SIM card, the method further includes: when the first device receives the pull-down operation, displaying a pull-down interface; the pull-down interface includes: The first device is accessing information of the SIM card of the second device. In this way, the user can also determine the situation of the first device accessing the SIM card of the second device by pulling down the prompt information in the interface, thereby improving the user experience of using the remote SIM card function.

In a possible implementation manner, after the first device displays the identifier used to identify the connected SIM card, the method further includes: the first device displays a SIM card management interface; wherein, the SIM card management interface also includes the SIM card of the second device An identification of the card, and a control for deactivating the SIM card of the second device; the first device stops accessing the SIM card of the second device when receiving a trigger for the control for deactivating the SIM card of the second device. In this way, the user can close the remote SIM card access at any time according to his own needs, thereby improving the user experience of using the remote SIM card function.

In a possible implementation manner, the identifier used to identify the connected SIM card includes: a SIM card icon and a signal grid of a communication system.

In a possible implementation manner, after the first device accesses the SIM card of the second device, the method further includes: the second device displays prompt information; the prompt information is used to prompt that the SIM card to be remotely accessed is not inserted into the second device. In this way, the user can confirm in the second device that the SIM card is remotely accessed by the first device through the prompt information, thereby improving the user experience of using the remote SIM card function.

In the second aspect, the embodiment of the present application provides an apparatus for remotely accessing a SIM card, the communication unit of the first device is configured to send a remote SIM request to the second device; wherein the remote SIM request is used to instruct the first device to request remote access The SIM card of the second device; the communication unit of the second device, configured to send response data corresponding to the remote SIM request to the first device; wherein, the response data corresponding to the remote SIM request is used to indicate that the second device allows the first device to remotely access The SIM card of the second device; the processing unit of the first device for accessing the SIM card of the second device.

In a possible implementation, the processing unit of the second device is further configured to switch the SIM card mode of the second device to the remote service mode according to the remote SIM request; the remote service mode is used to enable the second device to The SIM card is shared to the first device.

In a possible implementation manner, the processing unit of the first device is further configured to switch the SIM card mode of the first device to the remote client mode; the remote client mode is used to instruct the first device to use the SIM card of the second device.

In a possible implementation manner, the communication unit of the first device is specifically configured to send a reset response ATR request to the second device; the communication unit of the second device is specifically configured to send an ATR response to the first device according to the ATR request The communication unit of the first device is specifically used to send an application protocol data unit APDU request to the second device; the communication unit of the second device is specifically used to send an APDU result to the first device according to the APDU request; the processing of the first device The unit is specifically used to access the SIM card of the second device according to the APDU result.

In a possible implementation manner, the communication unit of the first device is further configured to send a first request to the second device; the first request is used to indicate that the first device requests to establish a connection with the second device; the communication of the second device The unit is further configured to send response data corresponding to the first request to the first device according to the first request; the response data corresponding to the first request is used to instruct the second device to allow establishing a connection with the first device.

In a possible implementation manner, the system for remotely accessing the SIM card further includes: a third device, the communication unit of the first device, further configured to send a remote SIM request to the second device through the third device.

In a possible implementation, the remote SIM request includes a temporary token message, and the system for remotely accessing the SIM card further includes: a fourth device, a communication unit of the first device, further configured to send a second request to the fourth device; The second request contains a temporary token message; the communication unit of the second device is also used to send a third request to the fourth device; the third request contains a temporary token message; when the fourth device determines the temporary token message in the second request When consistent with the temporary token message in the third request, the communication unit of the second device is further configured to send response data corresponding to the remote SIM request to the first device through the fourth device.

In a possible implementation manner, the system for remotely accessing the SIM card further includes: a fourth device, the fourth device is connected to the third device through an interface, and the communication unit of the first device is also configured to send the fourth device to the fourth device. request; the fourth request includes the first encrypted information for logging into the preset account; the fourth device sends the fourth request to the third device; the communication unit of the second device is also used to send the fifth request to the fourth device; The fifth request includes the second encrypted information for logging into the preset account; the fourth device sends the fifth request to the third device; when the fourth device determines that the first encrypted message is consistent with the second encrypted message, the second device's The communication unit is further configured to send response data corresponding to the remote SIM request to the first device through the fourth device.

In a possible implementation manner, the communication unit of the second device is further configured to report the SIM card information of the second device to the third device; the communication unit of the first device is further configured to send the sixth request to the third device The sixth request is used to request to query available remote SIM cards; the communication unit of the third device is also used to send the SIM card information of the second device to the first device according to the sixth request.

In a possible implementation manner, the display unit of the first device is also used to display the SIM card management interface, and the SIM card management interface includes an option for setting the use of a remote SIM card; the display unit of the first device is also used to display the SIM card management interface. When receiving a trigger for setting the option for using a remote SIM card, display the identification of one or more available devices, the available device is a device that supports the remote SIM card access function; When the identification of the second device in the device is triggered, the communication unit of the first device is further configured to send a remote SIM request to the second device.

In a possible implementation manner, the display unit of the first device is further configured to display an identifier for identifying a connected SIM card.

In a possible implementation manner, when the processing unit of the first device receives the pull-down operation, the display unit of the first device is further configured to display a pull-down interface; Second, the SIM card information of the device.

In a possible implementation manner, the display unit of the first device is also used to display a SIM card management interface; wherein, the SIM card management interface further includes an identifier of the SIM card of the second device, and is used to deactivate the SIM card of the second device. the control of the SIM card; the processing unit of the first device is further configured to stop accessing the SIM card of the second device when receiving a trigger for deactivating the control of the SIM card of the second device.

In a possible implementation manner, the display unit of the second device is further configured to display prompt information; the prompt information is used to prompt that no SIM card to be remotely accessed is inserted into the second device.

In the third aspect, the embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores instructions, and when the instructions are executed, the computer executes the first aspect or any implementation manner of the first aspect. described method.

In a fourth aspect, a computer program product includes a computer program, and when the computer program is executed, the computer executes the method described in the first aspect or any implementation manner of the first aspect.

It should be understood that the third aspect to the fourth aspect of the present application correspond to the technical solution of the first aspect of the present application, and the advantageous effects obtained by each aspect and the corresponding feasible implementation manners are similar, so details are not repeated here.

Description of drawings

FIG. 1 is a schematic diagram of a scene provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a hardware structure of an electronic device provided in an embodiment of the present application;

FIG. 3 is a schematic diagram of a hardware structure of another electronic device provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a system architecture for remotely accessing a SIM card provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of an interface for enabling a remote SIM card function provided by an embodiment of the present application;

FIG. 6 is another schematic view of an interface for enabling a remote SIM card function provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of an interface of a first device displaying that a user successfully accesses a remote SIM provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of a SIM card management interface provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a second device displaying a successful SIM card sharing interface provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of a system architecture of another remote access SIM card provided by an embodiment of the present application;

FIG. 11 is a schematic flowchart of a method for remotely accessing a SIM card provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of a device cloud and a function introduction of a switching center provided by an embodiment of the present application;

FIG. 13 is a schematic flowchart of another method for remotely accessing a SIM card provided by an embodiment of the present application;

FIG. 14 is a schematic flowchart of a device pair authentication method proposed in an embodiment of the present application;

FIG. 15 is a schematic diagram of a functional architecture of a switching center provided in an embodiment of the present application;

FIG. 16 is a schematic flowchart of another method for remotely accessing a SIM card provided by an embodiment of the present application;

FIG. 17 is a schematic structural diagram of a device for remotely accessing a SIM card provided by an embodiment of the present application;

FIG. 18 is a schematic structural diagram of a chip provided by an embodiment of the present application.

Detailed ways

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. For example, the first value and the second value are only used to distinguish different values, and their sequence is not limited. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit the difference.

It should be noted that, in this application, words such as "exemplary" or "for example" are used as examples, illustrations or illustrations. Any embodiment or design described herein as "exemplary" or "for example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete manner.

In this application, "at least one" means one or more, and "multiple" means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b, or c can represent: a, b, c, a and b, a and c, b and c, or a, b and c, wherein a, b, c can be single or multiple.

The SIM card described in the embodiment of this application can be a physical card (or called a hard card), or a virtual SIM card (or called a soft card), such as a built-in chip-type subscriber identity card (Embedded-SIM, eSIM), etc. , the specific form of the SIM card is not limited in this embodiment of the application.

The modem processor (Modem) runs on the baseband chip and the coprocessor. The Modem is equipped with a SIM card module, and the SIM card module in the Modem can be used to provide functions related to SIM information such as network registration and authentication. . Exemplarily, when using an electronic device with a Modem, the user can trigger a local application to realize a series of SIM card functions; or, the user can also access the SIM card of other electronic devices through the remote SIM function to realize a series of SIM card functions .

In a possible implementation, when the user owns a mobile phone 1 without a SIM card and a mobile phone 2 with a SIM card, the user can use the mobile phone 1 to access the SIM card in the mobile phone 2 through short-distance communication. For example, mobile phone 2 can establish a communication connection with mobile phone 1 through short-distance communication, and mobile phone 2 accepts the proxy of mobile phone 1, then mobile phone 2 can turn off its own cellular mobile communication network function to save power consumption. Specifically, the mobile phone 1 can perform paging and network registration for the SIM card of the mobile phone 2, and when the mobile phone 2 is paged or receives communication information, the mobile phone 1 can receive the information of the mobile phone 2 as an agent. Alternatively, the mobile phone 1 may not save the communication information, and transmit the communication information to the mobile phone 2 through short-distance communication, then the mobile phone 2 can receive and send the communication information on the device, and the power of the mobile phone 2 can be saved at this time.

In a possible implementation, the user can also pull out the SIM card in the mobile phone 2 and insert it into the SIM card slot of the mobile phone 1, so that the mobile phone 1 can directly access the SIM card in the mobile phone 2.

To sum up, the mobile phone 1 can access the SIM card in the mobile phone 2 through short-distance communication with the mobile phone 2, or by inserting and removing the card. However, when the mobile phone 2 is not around the user, the mobile phone 1 cannot access the SIM card of the remote mobile phone 1 based on short-distance communication or card insertion. For example, when the user leaves the mobile phone 2 at home, it will be difficult for the user to utilize other devices with Modem at hand, such as mobile phone 1, etc. to access the SIM card of the mobile phone 2 at home.

In view of this, the embodiment of the present application provides a method for remotely accessing a SIM card. Through data interaction between devices, it supports the remote device’s request for remote access to the SIM card, and realizes the sharing and fast sharing of the same SIM card among multiple devices. Handover, and then realize the distributed SIM card access among the multiple devices, and establish a remote connection, so that the device can perform function switching between the remote SIM and the local SIM.

Wherein, the distribution can be understood as sharing the capability of one device with another device, or sharing the capability of one device with multiple devices, or accessing the capability of one device by multiple devices. In this embodiment of the present application, the distribution is understood as sharing the capabilities of the second device with the first device; distributed SIM card access can be understood as that the first device can access the SIM card of the second device through a distributed call .

In order to describe clearly the embodiment of the process of the remote access SIM card proposed by the application, at first provide a brief introduction of the technology related to the embodiment of the application:

The usage scenarios of the method for remotely accessing the SIM card provided by the embodiment of the present application are introduced below. Exemplarily, FIG. 1 is a schematic diagram of a scenario provided by the embodiment of the present application, and the method for remotely accessing a SIM card provided by the embodiment of the present application may be applicable to the scenario shown in FIG. 1 .

As shown in Figure 1, this scenario may include: a first device placed in the company (or called the client, or the user of the SIM card), and a second device (or called the user of the SIM card) placed at home with the SIM card inserted. server, or the provider of the SIM card).

The first device may be: a smart watch 102, a tablet 103, a mobile phone 104, and the like. It can be understood that the first device is not limited to the aforementioned smart watch 102, tablet 103, and mobile phone 104, etc., and the specific form of the first device is not limited in this embodiment of the application.

The second device may be: a mobile phone 101 and the like. It can be understood that the second device is not limited to the mobile phone 101, and the second device can also be a smart watch or other customer premise equipment (Customer Premise Equipment, CPE), etc., the form of the second device in the embodiment of the present application Not specifically limited.

Exemplarily, when the user finds that the mobile phone is left at home when he is in the company, he can use other devices with Modem capability at hand to access the SIM card of the mobile phone at home. As shown in FIG. 1 , the mobile phone 104 can directly access the SIM card of the mobile phone 101 at home through the method for remotely accessing the SIM card provided by the embodiment of the present application. For example, the mobile phone 104 can use the SIM card of the mobile phone 101 to implement SIM card-related functions such as cellular mobile network registration, calling, short message, and one-key login.

It should be recognized that the scenario shown in FIG. 1 is based on a first device placed in a company and a second device placed at home with a SIM card inserted, but the embodiment of the present application is not limited thereto. The application scenario of this embodiment of the present application may be a first device and a second device with a SIM card placed at different locations, or a first device and a second device with a SIM card placed at the same location.

In order to describe the content in the embodiment of the present application more clearly, the hardware structure of the first device and the hardware structure of the second device involved in the embodiment of the present application are introduced below.

Exemplarily, FIG. 2 is a schematic diagram of a hardware structure of an electronic device provided in an embodiment of the present application. Wherein, the electronic device as shown in FIG. 2 may be the first device or the second device in the embodiment of the present application, and the electronic device includes a Modem 210A and a SIM card interface 295, and a SIM card may be inserted in the SIM card interface.

In the embodiment of the present application, the electronic device may include a processor 210, an external memory interface 220, an internal memory 231, a Universal Serial Bus (Universal Serial Bus, USB) interface 230, an antenna 1, an antenna 2, a mobile communication module 250, a wireless Communication module 260, audio module 270, sensor module 280, camera 293, display screen 294, and SIM card interface 295, etc.

It should be understood that the structure shown in this embodiment does not constitute a specific limitation on the electronic device. In other embodiments, the electronic device may include more or fewer components than shown, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

Processor 210 can include one or more processing units, for example: processor 210 can include application processor (Application Processor, AP), Modem 210A, graphics processing unit (Graphics Processing Unit, GPU), image signal processor (Image Signal Processor) Processor, ISP), controller, video codec, digital signal processor (Digital Signal Processor, DSP), baseband processor, and/or neural network processor (Neural-network Processing Unit, NPU), etc. In the embodiment of the present application, the processor 210 may execute the method for remotely accessing the SIM card provided in the embodiment of the present application.

A memory may also be provided in the processor 210 for storing instructions and data.

In some embodiments, processor 210 may include one or more interfaces. The interface can include an integrated circuit (Inter-integrated Circuit, I2C) interface, an integrated circuit built-in audio (Inter-integrated Circuit Sound, I2S) interface, a pulse code modulation (Pulse Code Modulation, PCM) interface, a universal asynchronous transceiver (Universal Asynchronous Receiver/Transmitter, UART) interface, mobile industry processor interface (Mobile Industry Processor Interface, MIPI), general-purpose input and output (General-Purpose Input/Output, GPIO) interface, subscriber identity module (Subscriber Identity Module, SIM) interface, and /or USB interface, etc.

The I2C interface is a bidirectional synchronous serial bus, including a serial data line (SerialData Line, SDA) and a serial clock line. The I2S interface can be used for audio communication. The PCM interface can also be used for audio communication, sampling, quantizing and encoding the analog signal. The UART interface is a universal serial data bus used for asynchronous communication. The MIPI interface can be used to connect the processor 210 with the peripheral devices such as the display screen 294 and the camera 293 . The GPIO interface can be configured by software. The GPIO interface can be configured as a control signal or as a data signal.

The USB interface 230 is an interface conforming to the USB standard specification, specifically, it may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like.

It can be understood that the interface connection relationship among the modules shown in this embodiment is only a schematic illustration, and does not constitute a structural limitation of the electronic device. In other embodiments of the present application, the electronic device may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

The wireless communication function of the electronic device can be realized through the antenna 1, the antenna 2, the mobile communication module 250, the wireless communication module 260, the Modem 210A and the baseband processor.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals.

The mobile communication module 250 can provide wireless communication solutions including 2G/3G/4G/5G applied to electronic devices. The mobile communication module 250 may include at least one filter, switch, power amplifier, low noise amplifier (Low Noise Amplifier, LNA) and the like. In some embodiments, at least part of the functional modules of the mobile communication module 250 may be set in the processor 210 . In some embodiments, at least part of the functional modules of the mobile communication module 250 and at least part of the modules of the processor 210 may be set in the same device.

Modem 210A may include a modulator and a demodulator. Wherein, the modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator sends the demodulated low-frequency baseband signal to the baseband processor for processing. The low-frequency baseband signal is passed to the application processor after being processed by the baseband processor. The application processor outputs sound signals through audio equipment (not limited to speakers, receivers, etc.), or displays images or videos through the display screen 294 . In some embodiments, Modem 210A may be a stand-alone device. In some other embodiments, the Modem 210A can be independent of the processor 210, and be set in the same device as the mobile communication module 250 or other functional modules.

The wireless communication module 260 can provide wireless local area network (Wireless Local Area Networks, WLAN) (such as wireless fidelity (Wireless Fidelity, Wi-Fi) network), bluetooth (Bluetooth, BT), global navigation satellite system, etc. (Global Navigation Satellite System, GNSS), frequency modulation (Frequency Modulation, FM), near field communication technology (Near Field Communication, NFC), infrared technology (Infrared, IR) and other wireless communication solutions.

In some embodiments, the antenna 1 of the electronic device is coupled to the mobile communication module 250, and the antenna 2 is coupled to the wireless communication module 260, so that the electronic device can communicate with the network and other devices through wireless communication technology. Wireless communication technologies can include Global System For Mobile Communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), broadband code division Multiple Access (Wideband Code Division Multiple Access, WCDMA), Time-division Code Division Multiple Access (TD-SCDMA), Long Term Evolution (LTE), BT, GNSS, WLAN, NFC, FM , and/or IR technology, etc. GNSS can include Global Positioning System (Global Positioning System, GPS), Global Navigation Satellite System (Global Navigation Satellite System, GLONASS), Beidou Navigation Satellite System (Beidou Navigation Satellite System, BDS), Quasi-zenith Satellite System (Quasi-zenith) Satellite System, QZSS) and/or Satellite Based Augmentation Systems (Satellite Based Augmentation Systems, SBAS).

The display screen 294 is used to display images, videos and the like. Display 294 includes a display panel. A series of graphical user interfaces (Graphical User Interface, GUI) can be displayed on the display screen 294 of the electronic device, and these GUIs are the main screen of the electronic device. The electronic device can realize the shooting function through ISP, camera 293 , video codec, GPU, display screen 294 and application processor.

Camera 293 is used to capture still images or video. In some embodiments, the electronic device may include 1 or N cameras 293, where N is a positive integer greater than 1.

The external memory interface 220 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device.

The internal memory 231 may be used to store computer-executable program codes including instructions.

The electronic device may include an audio module 270, and the audio module 270 may include: a speaker, a receiver, a microphone, an earphone interface, and an application processor to implement audio functions. Such as music playback, recording, etc.

The electronic device may include a sensor module 280, and the sensor module 280 may include: a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, and an ambient light sensor , bone conduction sensors, etc. In the embodiment of the present application, the acceleration sensor and the gyroscope sensor can be used to detect the motion state of the electronic device; the touch sensor is used to receive the user's touch operation on the touch screen.

The SIM card interface 295 is used for connecting a SIM card. The SIM card can be inserted into the SIM card interface 295 or pulled out from the SIM card interface 295 to realize contact and separation with the electronic device. The electronic device can support 1 or N SIM card interfaces, where N is a positive integer greater than 1. SIM card interface 295 can support Nano SIM card, Micro SIM card, SIM card etc. Multiple cards can be inserted into the same SIM card interface 295 at the same time. The types of multiple cards may be the same or different. The SIM card interface 295 is also compatible with different types of SIM cards. The SIM card interface 295 is also compatible with external memory cards. The electronic device interacts with the network through the SIM card to realize functions such as calling and data communication. In some embodiments, the electronic device adopts an eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the electronic device and cannot be separated from the electronic device.

In addition, an operating system runs on top of the above components. Such as iOS operating system, Android operating system, or Windows operating system, etc. Applications can be installed and run on this operating system.

Exemplarily, FIG. 3 is a schematic diagram of a hardware structure of another electronic device provided in an embodiment of the present application. Wherein, the electronic device shown in FIG. 3 may be the first device or the second device in the embodiment of the present application, and the electronic device includes a Modem 309A. Wherein, the function of the Modem 309A can refer to the Modem 210A in FIG. 2 , which will not be repeated here.

In some embodiments, the structure of the electronic device may be as shown in FIG. 3 , and the electronic device may include: a processor 301A, a memory 302A, a Bluetooth communication module 303A, an antenna 304A, a power switch 305A, a USB communication processing module 306A, and an audio module 307A , the sensor module 308A, and the Modem 309A in the processor 301A.

Processor 301A may be used to read and execute computer readable instructions. In a specific implementation, the processor 301A may mainly include a controller, an arithmetic unit, and a register. Among them, the controller is mainly responsible for instruction decoding, and sends out control signals for the operations corresponding to the instructions. The arithmetic unit is mainly responsible for saving the register operands and intermediate operation results temporarily stored during the execution of the instruction.

The memory 302A is coupled with the processor 301A for storing various software programs and/or sets of instructions. In a specific implementation, the memory 302A may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices or other non-volatile solid-state storage devices.

The Bluetooth communication module 303A may include a classic Bluetooth module and a Bluetooth low energy module.

The wireless communication function of the electronic device can be realized through the antenna 304A, the Bluetooth communication module 303A, and the like. The antenna 304A can be used to transmit and receive electromagnetic wave signals. Each antenna in an electronic device can be used to cover a single or multiple communication frequency bands. In some embodiments, there may be one or more antennas of the Bluetooth communication module 303A.

The power switch 305A can be used to control the power supply from the power source to the electronic device.

The USB communication processing module 306A can be used to communicate with other devices through a USB interface (not shown).

The audio module 307A can be used to output audio signals through the audio output interface, so that the electronic device can support audio playback. The audio module can also be used to receive audio data through the audio input interface. The electronic device may be a media playback device such as a bluetooth earphone.

Sensor module 308A includes one or more sensors. For example, acceleration sensors and gyro sensors may be included. The acceleration sensor can detect the magnitude of the acceleration of the electronic device in various directions (generally three axes). When the electronic device is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of electronic devices, and can be used in applications such as horizontal and vertical screen switching, pedometers, etc. Gyroscopic sensors can be used to determine the motion posture of electronic devices. In some embodiments, the angular velocity of the electronic device about three axes (ie, x, y, and z axes) may be determined by a gyroscopic sensor. The gyro sensor can be used for image stabilization.

It can be understood that the structure shown in FIG. 3 does not constitute a specific limitation on the electronic device. In other embodiments of the present application, the electronic device may include more or fewer components than shown in the illustrations, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

It will be apparent to those skilled in the art that some of the specific details presented above with respect to electronic devices may not be required to practice a particular embodiment, or the equivalent thereof. Similarly, other electronic devices may include a greater number of subsystems, modules, components, etc. Some sub-modules may be implemented as software or hardware where appropriate. Therefore, it should be understood that the above description is not intended to be exhaustive or to limit the disclosure to the precise forms herein. On the contrary, it will be apparent to those of ordinary skill in the art that many modifications and variations are possible in light of the above teaching.

Exemplarily, FIG. 4 is a schematic diagram of a system architecture for remotely accessing a SIM card provided by an embodiment of the present application.

As shown in FIG. 4 , in some embodiments, the layered architecture of the first device divides the software into several layers, and each layer has a clear role and division of labor. Layers communicate through software interfaces. In some embodiments, the Android system is divided into four layers, which are respectively an application program layer, an application program framework layer, a radio interface layer (Radio Layer Interface, RIL), and a Modem layer from top to bottom.

For the first device in Figure 4, data interaction can be performed between the application program layer and the application program framework layer through a conventional interface; between the application program framework layer and RIL can be performed through a hardware abstraction layer interface definition language (Hardware Abstraction Layer Interface Definition Language, HIDL) interface 4003 or (Remote SIM, rSIM) HIDL interface 4011 for data interaction; RIL and Modem can perform data interaction through rSIM interface 4008 and conventional interfaces.

Wherein, the application program layer may include a series of application programs. As shown in FIG. 4 , the application program package may include: SIM card management application 4001 , navigation, bluetooth, short message and other application programs. In the embodiment of the present application, the SIM card management application 4001 is used to provide a remote SIM card management interface. The SIM card management application 4001 will be described in detail below with reference to FIGS. 5-8 .

The application framework layer provides an application programming interface (Application Programming Interface, API) and a programming framework for applications in the application layer. The application framework layer includes some predefined functions. As shown in FIG. 4, the application framework layer may include a telephony manager (Telephony) 4002, a distributed SIM service management module 4012, and the like.

The phone manager 4002 is used to provide the SIM card function of the first device. For example, the phone manager 4002 is used to provide management of call status (including connected, hung up, etc.).

The distributed SIM service management module 4012 is used to forward the rSIM command issued by the RIL to the distributed SIM service management module 4015 of the second device; or, the distributed SIM service management module 4012 is also used to transfer the distributed SIM The response data corresponding to the rSIM command sent by the service management module 4015 is forwarded to the RIL. In the embodiment of the present application, the distributed SIM service management module 4012 may have both client and server functions. For example, in the first device, the distributed SIM service management module 4012 may be used to provide client functions. For the rSIM instruction, refer to the introduction about the rSIM instruction in the step shown in S4101.

Specifically, the functions of the distributed SIM service management module 4012 of the first device in this embodiment of the application may refer to the following description of the distributed SIM service management module 4012 of the first device in the system for remotely accessing the SIM card.

In a possible implementation, the distributed SIM service management module 4012 may include: a remote SIM access interface adaptation module, a SIM connection management module, a SIM instruction codec module, and a RIL interface agent module.

Remote SIM access interface adaptation module: it can be used to adapt the remote SIM access and control interface of RIL modules of different chip manufacturers. It can be understood that different chip manufacturers have different definitions for the rSIM HIDL interface 4011, and the data structure carrying the message may also be different, so the remote SIM access interface adaptation module can realize the normal call of the rSIM command.

In a possible implementation, the remote SIM access interface adaptation module can also be set in the remote SIM RIL module 4010 in the RIL layer, and its function is similar to that described above, and will not be repeated here.

SIM connection management module: used to implement the device connection function between the first device and the second device based on rSIM related instructions.

SIM instruction encoding and decoding module: used to realize the encoding function of the rSIM-related instructions to be sent and the decoding function of the received rSIM-related instructions.

RIL interface proxy module: used to interface with rSIM HIDL interface 4011 to realize functions such as receiving or forwarding data plane messages and control plane messages.

The distributed bus 4013 is used to establish a connection channel between the distributed SIM service management module 4012 of the first device and the distributed SIM service management module 4015 of the second device, and connect the distributed SIM service management module 4012 of the first device and the distributed SIM service management module 4015 of the second device. The distributed SIM service management module 4015 of the second device. In some embodiments, the distributed bus 4013 may be responsible for device discovery, self-connection, authentication management, etc. under the same account in the short distance, local area network, or far field. The distributed bus 4013 can also be responsible for scheduling management of different channels, service quality experience evaluation, etc., and is transparent to the application layer. The distributed bus 4013 can also be responsible for maintaining channels, providing a low-power standby mechanism, and the like.

In a possible implementation, the application framework layer may also include: a window manager, a notification manager, a content manager, a view system, and a resource manager (not shown in FIG. 4 ). This is not limited.

A window manager is used to manage window programs. The window manager can obtain the size of the display screen, determine whether there is a status bar, lock the screen, touch the screen, drag the screen, capture the screen, etc. The notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages, and can automatically disappear after a short stay without user interaction. For example, the notification manager is used to notify the download completion, message reminder, etc. Content providers are used to store and retrieve data and make it accessible to applications. Data can include videos, images, audio, calls made and received, browsing history and bookmarks, phonebook, etc. The view system includes visual controls, such as controls for displaying text, controls for displaying pictures, and so on. The view system can be used to build applications. A display interface can consist of one or more views. For example, a display interface including a text message notification icon may include a view for displaying text and a view for displaying pictures. The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.

RIL is responsible for providing telephony services. It is the middle layer between the upper-layer application and the lower-layer Modem module, and is responsible for the reliable transmission of data. The RIL may include a radio interface layer daemon (Radio Interface Layer Daemon, rild), and the rild may include: a native ril service module (or a standard ril service module) 4004, and a remote SIM RIL module 4010.

Native ril service module 4004: for forwarding the rSIM command sent by the phone manager 4002 via the HIDL interface 4003 to the Modem module, and forwarding the response data corresponding to the rSIM command returned by the Modem module to the phone manager 4002. The communication interface between the native ril service module 4004 and the Modem module may be a conventional communication interface between the ril service module and the Modem module.

Remote SIM RIL module 4010: used to forward the rSIM command sent by the Modem module via the rSIM interface 4008 to the distributed SIM service management module 4012 through the rSIM HIDL interface 4011; and the distributed SIM service management module 4012 via the rSIM HIDL interface 4011 The response data corresponding to the sent rSIM command is forwarded to the Modem module through the rSIM interface 4008 .

The remote SIM RIL module 4010 may include: an rSIM instruction processing module 4009. The rSIM command processing module 4009 is used for message processing of the rSIM command. For example, the rSIM instruction processing module 4009 is used to analyze the rSIM instruction sent by the Modem module, and convert it into a message type that can be processed by the rSIM HIDL interface 4011; The response data corresponding to the transmitted rSIM command is parsed and converted into a message type that the Modem module can recognize.

The Modem module includes: a SIM card module 4005, a local SIM card module 4006, a remote SIM card module 4007, and a SIM card slot driver 4025, etc. Wherein, the SIM card slot driver 4025 can be connected with a SIM hard card 4026 .

SIM card module 4005: used to provide functions related to SIM information such as network registration and authentication. The SIM card module 4005 can support two calling modes of the SIM card, such as the local SIM card calling mode provided by the local SIM card module 4006 and the remote SIM card calling mode provided by the remote SIM card module 4007 .

Local SIM card module 4006: used to use the SIM card slot driver to access the information of the local SIM card.

Remote SIM card module 4007: used for invoking a remote SIM card, such as invoking a SIM card of a second device, to realize access to information of the remote SIM card.

In a possible implementation manner, the SIM card slot driver 4025 and the SIM hard card 4026 may be arranged in the Modem of the first device; or, the SIM card slot driver 4025 and the SIM hard card 4026 may not be set in the Modem of the first device. At this time, the first device can use a local eSIM or a remote SIM card. Wherein, the remote SIM card may be the hard SIM card 4022 of the second device.

In a possible implementation, when the SIM card management application 4001 receives the user's operation of using the remote SIM card, the SIM card management application 4001 can send the rSIM corresponding to the operation of using the remote SIM card to the phone manager 4002 through a conventional interface. command; the phone manager 4002 sends the rSIM command to the native ril service module 4004 through the HIDL interface 4003; the native ril service module 4004 sends the rSIM command to the Modem module through the conventional interface. Therefore, the Modem module can determine the current SIM card calling mode according to the rSIM instruction sent via the SIM card management application 4001 , the phone manager 4002 , and the native ril service module 4004 . Adaptable, when the Modem module determines that it is currently a remote SIM card calling mode, then the remote SIM card module 4007 can be called, and the rSIM instruction is sent to the remote SIM RIL module 4010 through the rSIM interface 4008; the remote SIM RIL module 4010 sends the rSIM instruction to Send it to the distributed SIM service management module 4012 through the rSIM HIDL interface 4011; and then the distributed SIM service management module 4012 can forward the rSIM command to the second device through the distributed bus 4013.

As shown in Figure 4, the layered architecture of the second device also divides the software into several layers, and each layer has a clear role and division of labor. Layers communicate through software interfaces. In some embodiments, the Android system is divided into four layers, which are application program layer, application program framework layer, RIL, and Modem layer, etc. from top to bottom. For the second device in Figure 4, data interaction can be performed between the application program layer and the application program framework layer through a conventional interface; data interaction between the application program framework layer and RIL can be performed through a HIDL interface and rSIM HIDL interface 4016; RIL Data interaction with the Modem can be performed through the rSIM interface 4019 and conventional interfaces.

Wherein, the application program layer may include a series of application programs. As shown in FIG. 4, the application programs may include: SIM card management application, navigation, bluetooth, short message and other application programs.

The application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer. The application framework layer includes some predefined functions. As shown in FIG. 4 , the application framework layer may include a phone manager and a distributed SIM service management module 4015 .

In some embodiments, the phone manager is operable to provide SIM card functionality for the second device. For example, the phone manager 4002 is used to provide management of call status (including connected, hung up, etc.).

The distributed SIM service management module 4015 is used to forward the rSIM command sent by the first device to the remote SIM RIL module 4017 through the rSIM HIDL interface 4016, and forward the response data corresponding to the rSIM command to the first device through the distributed bus 4014. In the embodiment of the present application, the distributed SIM service management module 4015 may have both client and server functions. For example, in the second device, the distributed SIM service management module 4015 may be used to provide server functions.

Specifically, the functions of the distributed SIM service management module 4015 of the second device in this embodiment of the application may refer to the following description of the distributed SIM service management module 4015 of the second device in the system for remotely accessing the SIM card.

It can be understood that, for the modules included in the distributed SIM service management module 4015 and the functions of the modules, reference may be made to the relevant description in the distributed SIM service management module 4012 , which will not be repeated here.

The principle and execution process of the distributed bus 4014 of the second device are similar to those of the distributed bus 4013 of the first device, and will not be repeated here.

In a possible implementation, the application framework layer may also include: a window manager, a notification manager, a content manager, a view system, and a resource manager (not shown in FIG. 4 ). This is not limited. It can be understood that, for the functions of the above-mentioned manager, reference may be made to the introduction of relevant content in the first device, and details are not repeated here.

A native ril service module, and a remote SIM RIL module 4017 may be included in the RIL. Wherein, the remote SIM RIL module 4017 may include an rSIM instruction processing module 4018. It can be understood that, for other modules included in the RIL and functions of the modules, reference may be made to related descriptions in the RIL of the first device, and details are not repeated here.

The Modem module may include: a SIM card module 4024, a local SIM card module 4023, a remote SIM card module 4020, a SIM card slot driver 4021, and a SIM hard card 4022 connected to the SIM card slot driver 4021, etc. Wherein, the SIM hard card 4022 can be used to provide SIM card information for the first device. For other modules contained in the Modem module and the functions of the modules, please refer to the relevant description in the Modem module of the first device, and details will not be repeated here.

It should be noted that although the embodiment of the present application uses the Android system as an example for illustration, its basic principles are also applicable to electronic devices based on operating systems such as iOS or Windows.

As shown in FIG. 4 , based on the above-mentioned related technologies, an embodiment of the present application proposes a system for remotely accessing a SIM card. The system for remotely accessing a SIM card includes: a first device and a second device. A distributed SIM service management module 4012 is set in the application framework layer of the first device, and an rSIM HIDL interface 4011 is set between the application framework layer and the RIL of the first device. A distributed SIM service management module 4015 is set in the application framework layer of the second device, and an rSIM HIDL interface 4016 is set between the application framework layer and the RIL of the second device. Both the first device and the second device have Modem modules. The SIM card slot driver 4021 in the Modem module of the second device is connected to the SIM hard card 4022 . A connection is established between the distributed SIM service management module 4012 of the first device and the distributed SIM service management module 4015 of the second device through the distributed bus 4013 of the first device and the distributed bus 4014 of the second device.

In some embodiments, when the first device establishes a communication connection with the second device, the processing procedure of the remote access SIM card in the system of FIG. 4 may be:

S4101. When the SIM card management application 4001 in the first device receives an operation corresponding to the rSIM instruction triggered by the user, the SIM card management application 4001 sends the rSIM instruction to the phone manager 4002.

In the step shown in S4101, the rSIM instruction may be an instruction for the first device to request access to the SIM card of the second device. For example, when the SIM card management application 4001 of the first device receives that the user enables the remote SIM card function and selects the remote SIM card that needs to be accessed as the SIM card of the second device, the first device generates an rSIM command and sends the rSIM The instruction is sent to the telephony manager 4002.

Exemplarily, FIG. 5 is a schematic diagram of an interface for enabling a remote SIM card function provided by an embodiment of the present application.

When the first device receives the user's operation of sliding down along the upper edge of the display screen of the first device, the first device may display an interface as shown in Figure 5a, which may display: time information, used to indicate WLAN functions Controls for on or off, controls for Bluetooth on or off, controls for mobile data on or off, controls for ringer on or off, and auto-rotate on or closed control, and the control 501 for opening the setting function and so on.

In the interface shown in FIG. 5a, when the first device receives the user's operation on the control 501 for opening the setting function, the first device may display the interface shown in FIG. 5b. As shown in Figure 5b, the interface can display functional controls corresponding to the setting functions, for example: a text box for searching setting items, a control for logging in to an account, a control for setting WLAN, a control for setting Bluetooth, Controls 502 for setting up mobile networks, controls for setting up HyperTerminal, controls for setting up more connections, etc. Wherein, the login account may be 1234567XXXX.

In a possible implementation manner, the first device may also enter the control corresponding to the setting function as shown in FIG. 5 b based on the user triggering the control for opening the setting function in other interfaces. For example, the user may open the setting interface by triggering the control corresponding to the setting function in the desktop state of the first device, which is not limited in this embodiment of the present application.

In the interface shown in FIG. 5b, when the first device receives the user's operation on the control 502 for setting the mobile network, the first device may display the interface shown in FIG. 5c. As shown in Figure 5c, functional controls corresponding to the mobile network can be displayed in this interface, for example: a control for enabling flight mode, a control for setting mobile data, a control 503 for SIM card management, and a control 503 for setting personal Controls for hotspots, controls for traffic management, etc.

In the interface shown in FIG. 5c, when the first device receives the user's operation on the control 503 for SIM card management, the first device may display the interface shown in FIG. 5d. As shown in Figure 5d, the interface can display: card 1 in the state of inserting the card, and card 2 in the state of not inserting the card, the control for setting the default mobile data, the control for setting the default dialing card, and the control for setting the default dialing card. Controls for setting call transfer between dual SIM cards, and controls 504 for using remote SIM cards, etc. Wherein, the card 1 may correspond to a mobile phone number of 1234567XXXX, and the card 1 may provide the first device with a 5G/4G/3G/2G network under the XX mobile manufacturer; the default mobile data may correspond to card 1 or card 2.

In the interface shown in Figure 5d, when the first device receives the user's operation on the control 504 for using the remote SIM card, the first device can enter the setting interface of the remote SIM card function (as shown in Figure 6a interface), and the remote SIM card function can be enabled in the setting interface of the remote SIM card function.

It can be understood that the above-mentioned operation on the control may be a click operation, a touch operation, or a press operation on the control, which is not limited in this embodiment of the present application.

Further, FIG. 6 is a schematic diagram of a setting interface of the remote SIM card function provided by the embodiment of the present application.

As shown in Fig. 6a, the interface may include a control 601 for opening a remote SIM card, a control for editing a device name, a control for viewing a default card slot, and the like.

In the interface shown in Figure 6a, when the first device receives the user's operation to trigger the control 601 for opening the remote SIM card, the first device may display the interface as shown in Figure 6b after querying all available devices interface. The interface shown in Figure 6b can include the equipment (such as mobile phone 602 SIM1) in use, and the available equipment (such as mobile phone 603 SIM1, mobile phone 604 SIM1, mobile phone 604 SIM2, and tablet 605 SIM2, etc.) in use in this interface. equipment). Further, the user may select any of the above devices to access the SIM card of the selected device. This selected device can be seen as the second device described above. The first device generates an rSIM instruction in response to the user's selection, and sends the generated rSIM instruction to the phone manager 4002 . Wherein, other content displayed in the interface shown in FIG. 6b is similar to the interface shown in FIG. 6a, and will not be repeated here.

It can be understood that, in the interface shown in Figure 6b, when there are multiple SIM cards in the second device, the multiple SIM cards can be regarded as multiple devices, for example, with mobile phone device ID+SIM card slot displayed in the interface of the first device. For example, "mobile phone 604 SIM1" and "mobile phone 604 SIM2" in Figure 6b.

S4102. The phone manager 4002 sends the rSIM command to the native ril service module 4004.

Wherein, the phone manager 4002 can send the rSIM command to the native ril service module 4004 via the HIDL interface 4003 .

S4103. The native ril service module 4004 sends the rSIM instruction to the Modem module of the first device.

Wherein, the native ril service module 4004 may send the rSIM command to the Modem module of the first device via a conventional interface.

Adaptively, the SIM card module 4005 in the Modem module can determine based on the rSIM instruction that the remote SIM card can be invoked through the remote SIM card module 4007, so that the remote SIM card module 4007 executes the steps shown in S4104.

S4104. The remote SIM card module 4007 sends the rSIM instruction to the remote SIM RIL module 4010.

Wherein, the remote SIM card module 4007 can send the rSIM instruction to the remote SIM RIL module 4010 via the rSIM interface 4008.

S1405. The remote SIM RIL module 4010 sends the rSIM instruction to the distributed SIM service management module 4012.

Wherein, the remote SIM RIL module 4010 can send the rSIM instruction to the distributed SIM service management module 4012 via the rSIM HIDL interface 4011.

S4106. The distributed SIM service management module 4012 of the first device sends the rSIM instruction to the distributed SIM service management module 4015 of the second device.

Wherein, the distributed SIM service management module 4012 of the first device can send the rSIM instruction to the distributed SIM service management module 4015 of the second device through the distributed bus 4013 of the first device and the distributed bus 4014 of the second device.

It should be noted that there are many forms for establishing a communication connection between the distributed bus 4013 of the first device and the distributed bus 4014 of the second device. For example, the communication connection is established through Bluetooth, connecting to the same wireless Wi-Fi, or connecting to the same account, and the difference in the way of establishing the communication connection between the first device and the second device does not affect the implementation of the embodiments of the present application.

S4107. The distributed SIM service management module 4015 sends the rSIM instruction to the remote SIM RIL module 4017.

Wherein, the distributed SIM service management module 4015 can send the rSIM instruction to the remote SIM RIL module 4017 via the rSIM HIDL interface 4016.

S4108. The remote SIM RIL module 4017 sends the rSIM instruction to the remote SIM card module 4020 in the Modem module.

Wherein, the remote SIM RIL module 4017 can send the rSIM instruction to the remote SIM card module 4020 in the Modem module via the rSIM interface 4019.

Adaptively, the remote SIM card module 4020 can obtain the SIM information in the SIM hard card 4022 through the SIM card slot driver 4021, and generate response data corresponding to the rSIM command, so that the remote SIM card module 4020 can execute the steps shown in S4109.

Wherein, the response data corresponding to the rSIM command may be used to indicate that the SIM card of the second device supports remote access by the first device. Further, based on the steps shown in S4109-S4126, the second device may return the response data corresponding to the rSIM command to the application layer of the first device, so that the first device displays an interface that accesses the SIM card of the second device successfully.

In a possible implementation manner, the Modem module of the second device may switch the SIM card mode to the remote service mode.

In a possible implementation, when the second device contains multiple SIM cards, such as two SIM cards, one of the SIM cards can support the first device to call the remote SIM, and the other SIM can support the local SIM The calling of the card module 4023.

In a possible implementation, the Modem module of the second device may also return a message indicating that a certain SIM card of itself is remotely accessed through the native ril service module in the RIL layer and the phone manager in the application framework layer For the upper layer application, the second device can display a message on the interface indicating that a certain SIM card of itself is remotely accessed. In this case, the second device may also change the card state of the remotely accessed SIM card to a state of no card or a state of no card inserted.

S4109. The remote SIM card module 4020 sends the response data corresponding to the rSIM command to the remote SIM RIL module 4017.

Wherein, the remote SIM card module 4020 can send the response data corresponding to the rSIM command to the remote SIM RIL module 4017 via the rSIM interface 4019.

S4120. The remote SIM RIL module 4017 sends the response data corresponding to the rSIM command to the distributed SIM service management module 4015.

Wherein, the remote SIM RIL module 4017 can send the response data corresponding to the rSIM command to the distributed SIM service management module 4015 via the rSIM HIDL interface 4016.

S4121. The distributed SIM service management module 4015 of the second device sends response data corresponding to the rSIM command to the distributed SIM service management module 4012 of the first device.

Wherein, the distributed SIM service management module 4015 of the second device can send the response data corresponding to the rSIM command to the distributed SIM service of the first device through the distributed bus 4014 of the second device and the distributed bus 4013 of the first device. Management module 4012 .

S4122. The distributed SIM service management module 4012 sends the response data corresponding to the rSIM command to the remote SIM RIL module 4010.

Wherein, the distributed SIM service management module 4012 can send the response data corresponding to the rSIM command to the remote SIM RIL module 4010 via the rSIM HIDL interface 4011.

S4123. The remote SIM RIL module 4010 sends the response data corresponding to the rSIM command to the remote SIM card module 4007.

Wherein, the remote SIM RIL module 4010 can send the response data corresponding to the rSIM command to the remote SIM card module 4007 via the rSIM interface 4008. In a possible implementation, the remote SIM card module 4007 in the Modem module sends the response data corresponding to the rSIM command to the SIM card module 4005; so that the Modem module can send the response data corresponding to the received rSIM command based on the SIM card module 4005 sent to the RIL layer.

In a possible implementation manner, the Modem module can switch the SIM card mode to the remote client mode.

S4124. The Modem module sends the response data corresponding to the rSIM command to the native ril service module 4004.

The remote SIM card module 4005 in the Modem module can realize that the response data corresponding to the rSIM command is sent to the native ril service module 4004.

S4125. The native ril service module 4004 sends the response data corresponding to the rSIM command to the phone manager 4002.

Wherein, the native ril service module 4004 can send the response data corresponding to the rSIM command to the phone manager 4002 via the HIDL interface 4003 .

S4126. The phone manager 4002 sends the response data corresponding to the rSIM command to the SIM card management application 4001.

In the steps shown in S4101-S4126, the second device may allow other devices to access the SIM card of the second device by default. In a possible implementation manner, the SIM card management application of the second device may also be provided with a switch for allowing (or denying) other devices to access the SIM card of the second device. For example, the user can turn on the switch in the second device that allows other devices to access the SIM card of the second device, so that the first device can remotely access the SIM card of the second device when needed; or, the user can also turn off the second device The switch that allows other devices to access the SIM card of the second device, so that the first device cannot remotely access the SIM card of the second device.

Through S4101-S4126, the first device may display an interface indicating that the connection is successful.

Exemplarily, FIG. 7 is a schematic diagram of an interface of a first device displaying that a user successfully accesses a remote SIM provided by an embodiment of the present application. After the SIM card management application of the first device receives the response data corresponding to the rSIM command returned by the second device, the first device may display the interface as shown in FIG. 7a. As shown in the interface of FIG. 7a, an identifier 701 for indicating that the first device is accessing a remote SIM card and a text identifier 702 for indicating to establish a connection with the mobile phone 603SIM1 may be displayed on the interface. Wherein, the logo 701 may be composed of a 5G signal grid and a shape corresponding to a SIM card, and the text logo 702 may be displayed as being connected.

It can be understood that other content displayed on the interface shown in FIG. 7a is similar to the interface shown in FIG. 6b , and will not be repeated here.

In a possible implementation, when the first device receives the user's operation of sliding down along the upper edge of the display screen of the first device, the first device may display a drop-down menu interface as shown in Figure 7b, and a prompt may be displayed in this interface Information 703 and a control 704 for switching off the remote SIM. Wherein, the prompt information 703 is used to indicate that the first device remotely accesses the SIM of the second device, for example, the prompt information 703 may be: the current SIM1 is accessing the mobile phone 603 SIM1.

It can be understood that other content displayed on the interface shown in FIG. 7b is similar to the interface shown in FIG. 5a , and will not be repeated here.

For the embodiment corresponding to FIG. 7 , the user can keep abreast of the use of the remote SIM by the first device based on the identifier 701, text identifier 702, and prompt information 703 provided by the first device to indicate that the first device is accessing the remote SIM card. state.

In a possible implementation, when the first device remotely accesses the SIM card of the second device, when the first device receives an interface for the user to open the SIM card management function, the first device may display the current usage of the SIM card. Exemplarily, FIG. 8 is a schematic diagram of a SIM card management interface provided by an embodiment of the present application.

When the user opens the SIM card management interface based on the interface diagrams shown in FIGS. Controls 802 for the SIM card. Wherein, the icon 801 is used to indicate that the SIM card 1 of the first device is a remote SIM card. Wherein, the SIM card icon 801 may be displayed as a combination of the shape of the SIM card and the shape of the mobile phone.

Exemplarily, as shown in FIG. 8 , the user may also disable the remote access of the first device to the SIM card of the second device through the control 802 for disabling or enabling the SIM card.

It can be understood that other content shown in FIG. 8 is similar to that shown in FIG. 5d , and will not be repeated here. Referring to FIG. 5d and FIG. 8 , when the first device remotely accesses the SIM card of the second device, an identifier 801 may be added to the interface shown in FIG. 8 .

With respect to the embodiment corresponding to FIG. 8 , the user may know the state of using the remote SIM of the first device based on the SIM card icon 801 in the SIM card management interface.

Through S4101-S4126, the second device may also display an interface of successful connection.

In a possible implementation manner, the Modem module of the second device may also send the response data corresponding to the rSIM command to the upper layer of the second device, and then the second device may display an interface of successful connection. It can be understood that, for the process of the Modem module of the second device sending a message to the upper layer of the second device, refer to the process of the Modem module of the first device sending a message to the upper layer of the first device, which will not be repeated here.

Exemplarily, FIG. 9 is a schematic diagram of an interface of a second device displaying successful SIM card sharing according to an embodiment of the present application.

When the second device receives an operation of sliding down by the user along the upper edge of the display screen of the second device, the second device may display a drop-down menu interface as shown in FIG. 9 . As shown in FIG. 9 , an identification 902 , prompt information 901 , and a control 903 for exiting SIM remote sharing can be displayed on the interface. Wherein, the prompt information 901 is used to indicate that the SIM1 in the second device is being remotely accessed by the first device, for example, the prompt information 901 may be: the current SIM1 is being used remotely by the first device. The identifier 902 is used to indicate the card-free state corresponding to SIM1 when remotely accessed by the first device, for example, the identifier 902 may be: no SIM card. Wherein, other content displayed in the interface shown in FIG. 9 may be similar to the interface shown in FIG. 5 a , which will not be repeated here.

It can be understood that since the SIM1 of the second device is being remotely accessed by the first device, the SIM1 in the second device may correspond to a no-card state. In a possible implementation, when the second device includes SIM1 and SIM2, and the SIM1 is remotely accessed by the first device, the SIM1 may correspond to the state of no card, the SIM2 may correspond to the state of the card, and the SIM2 A second device may be supported for local SIM access.

For the embodiment corresponding to FIG. 9 , the user can know the remote sharing status of the SIM card of the second device based on the prompt information 901 and the identification 902.

Based on this, the first device and the second device can implement remote SIM card access through the distributed SIM service management modules respectively set in the application framework layer.

In a possible implementation, in the above-mentioned embodiment corresponding to FIG. 4, the first device may also request to read the SIM card through a reset answer (ATR) request and an application protocol data unit (Application Protocol Data Unit, APDU) request, etc. information, and read the SIM card information based on the ATR response and the APDU result, etc. For details, refer to the corresponding embodiment in FIG. 11 , which will not be repeated here.

In a possible implementation manner, the transmission of the rSIM instruction involved in S4101 to S4108 may be transparent transmission or non-transparent transmission. Similarly, the transmission of the response data corresponding to the rSIM instruction involved in S4109 to S4126 may be transparent transmission or non-transparent transmission.

In a possible implementation manner, the first device may also invoke a local SIM card. As shown in FIG. 4, when the SIM card management application 4001 of the first device receives an operation corresponding to the use of the local SIM card by the user, the SIM card management application 4001 generates a SIM instruction corresponding to the use of the local SIM card, and passes the SIM instruction through The conventional interface is sent to the telephony manager 4002. The phone manager 4002 sends the SIM command to the native ril service module 4004 through the HIDL interface 4003 . The native ril service module 4004 sends the SIM command to the Modem. The SIM card module 4005 in the Modem can determine the current SIM card calling situation based on the SIM instruction. For example, when the SIM card module 4005 determines to use a local SIM card based on the SIM command, it can call the local SIM card module 4006 to obtain information about the SIM hard card 4026 connected to the SIM card slot driver 4025, and generate response data corresponding to the SIM command . Wherein, the response data corresponding to the SIM command may be used to indicate that the first device successfully uses the local SIM card.

Further, the SIM card module 4005 in the Modem module can send the response data corresponding to the SIM command to the native ril service module 4004. The native ril service module 4004 sends the response data corresponding to the SIM command to the phone manager 4002 through the HIDL interface 4003 . The phone manager 4002 sends the response data corresponding to the SIM command to the SIM card management application 4001 . Furthermore, the first device can implement access to the local SIM card.

In a possible implementation, as shown in FIG. 4, the distributed SIM service management module 4012 of the first device may also be set in the RIL; suitably, the distributed SIM service management module 4015 of the second device may be set in RIL.

Exemplarily, FIG. 10 is a schematic diagram of another system architecture for remotely accessing a SIM card provided by an embodiment of the present application. As shown in FIG. 10 , the distributed SIM service management module 1001 of the first device is set in the RIL, and the distributed SIM service management module 1002 of the second device is set in the RIL. Moreover, the distributed SIM service management module 1001 of the first device may establish a connection with the distributed SIM service management module 1002 of the second device.

In some embodiments, the distributed SIM service management module 1001 of the first device and the distributed SIM service of the second device may be established through the distributed bus 1003 in the first device and the distributed bus 1004 in the second device. Connections between management modules 1002 .

As shown in FIG. 10, since the distributed SIM service management module 1001 of the first device is set in the RIL of the first device, and the distributed SIM service management module 1002 of the second device is set in the RIL of the second device, the first The process for the device to send the rSIM command to the second device may be: the rSIM command of the first device is via the SIM card management application in the application layer of the first device, the phone manager in the application framework layer, and the native ril service in the RIL module, sent to the Modem module; the remote SIM card module in the Modem module can send the rSIM instruction to the distributed SIM service management module 1001 via the remote SIM RIL module in the RIL. Adaptively, the distributed SIM service management module 1001 may send the rSIM instruction to the distributed SIM service management module 1002 of the RIL of the second device via the distributed bus 1003 of the first device and the distributed bus 1004 of the second device, The distributed SIM service management module 1002 then sends the rSIM instruction to the remote SIM card module in the local Modem module via the remote SIM RIL module.

Further, the process in which the second device sends the response data corresponding to the rSIM instruction to the first device may be: the remote SIM card module in the Modem module sends the response data corresponding to the rSIM instruction to the distributed SIM service management module via the remote SIM RIL module 1002: The distributed SIM service management module 1002 sends the response data corresponding to the rSIM command to the distributed SIM service management module 1001 of the first device through the distributed bus 1004 of the second device and the distributed bus 1003 of the first device; The distributed SIM service management module 1001 of a device sends the response data corresponding to the rSIM command to the Modem module via the remote SIM RIL module; the Modem module sends the response data corresponding to the rSIM command via the original ril service module and the application framework layer sent to the SIM card management application in the application layer by the phone management module.

Based on this, the first device and the second device can implement remote SIM card access through the distributed SIM service management modules respectively set in the RIL.

Based on the system architecture shown in FIG. 4 , the process of remotely accessing the SIM card between the first device and the second device in the embodiment of the present application will be described in detail below with reference to FIG. 11 .

Exemplarily, FIG. 11 is a schematic flowchart of a method for remotely accessing a SIM card provided by an embodiment of the present application. In the embodiment corresponding to FIG. 11 , the first device and the second device are both mobile phones as an example for illustration, and this example does not constitute a limitation to the embodiment of the present application.

In a possible implementation, as shown in FIG. 4 , the first device is provided with a SIM card management application 4001 and a distributed SIM service management module 4012 , and the second device is provided with a distributed SIM service management module 4015 and a SIM hard card 4022 .

As shown in Figure 11, the method for remotely accessing the SIM card may include the following steps:

S1101. When the first device receives an operation of enabling a remote SIM card function by the user, the SIM card management application of the first device queries all available devices.

In the embodiment of the present application, the remote SIM card function can be understood as not using the local SIM card, but calling other remote devices, such as the SIM card of the second device, to implement the SIM card function.

In this embodiment of the present application, all available devices may be the second device that allows sharing its own SIM card. Exemplarily, the second device may be a device that allows other devices to share its own SIM card by default, or may also be a device that allows other devices to share its own SIM card based on a user's trigger operation. For example, it can be used to share the use of its own SIM card for the boot operation of the second device, or it can be used for the trigger operation of the function control on the interface of the second device to enable it to share the use of its own SIM card. This is not limited in the example.

Exemplarily, in the case where the second device shares its own SIM card, when the first device enables the remote SIM card function, the second device is in a state that can be discovered by other devices, and the identity of the second device is displayed on the first in the interface of the device. Among them, there are many ways for the second device to be in a state that can be discovered by the first device. For example, the second device can be discovered by the first device with the Bluetooth function turned on when the second device is turned on. Discovery, the second device accessing the near-field network (such as a wireless network) can be discovered by the first device in the near field, the second device can log in to the account, and can be discovered by the first device under the account, etc., in this embodiment of the application No limit.

In a possible implementation manner, the first device may not perform step S1101, for example, the first device enables the remote SIM card function by default, or automatically enables the remote SIM card function when a specific condition is detected. Wherein, the specific condition may be detecting that there is a device of the same brand nearby, or receiving a message from the server notifying that the remote SIM card function is enabled, and the like.

S1102. When the first device receives an operation that the user triggers any device to act as the second device among all available devices, the SIM card management application of the first device initiates a distributed SIM to the distributed SIM service management module of the first device Serve. Specifically, when the first device receives an operation that the user triggers any device to act as the second device among all available devices, the SIM card management application of the first device sends a request to the distributed SIM service management module of the first device, The request is used to instruct the first device to request the distributed SIM service. The request may be the rSIM instruction described above, or any other information that can instruct the first device to request the distributed SIM service.

Exemplarily, the first device will inquire about one or more devices that are allowed to share its own SIM card through S1101. The first device may select a device that wants to use its SIM card as the second device from all inquired devices that share the function of its own SIM card.

In an implementation, the second device may be automatically selected by the first device according to a preconfigured selection rule. The selection rule can be randomly selected, it can be to select the device with the closest distance first, or it can be to select the device with the strongest signal first.

In another implementation, the first device may select the second device from all inquired devices that share the function of its own SIM card in response to a user's selection operation. For example, in the interface shown in Figure 7b, the user has selected the mobile phone 603 SIM1 from the list of available devices as the second device. Then the first device responds to the user's selection operation, and executes step S1102 to initiate the distributed SIM service to the distributed SIM service management module of the first device. It can be understood that there are many ways for the first device to select the second device, which are not limited in this embodiment of the present application.

In a possible implementation, as shown in FIG. 4 , the SIM card management application 4001 of the first device may initiate a distributed SIM service to the distributed SIM service management module 4012 of the first device based on the steps shown in S4101-S4105. Wherein, the initiation of the distributed SIM service may be embodied in that the SIM card management application of the first device sends a request to the distributed SIM service management module of the first device.

S1103. The distributed SIM service management module of the first device sends a device connection request to the distributed SIM service management module of the second device.

Exemplarily, the distributed SIM service management module of the first device may establish a connection with the distributed SIM service management module of the second device through a distributed bus. After the distributed SIM service management module of the first device establishes a connection with the distributed SIM service management module of the first device through the distributed bus, the distributed communication bus can keep the connection channel unbroken. The distributed bus can also be in a low-power standby mechanism when the first device and the second device are in the connection state. It is only in the working state when the distributed bus is required for sending work, and it is in a low-power standby state at other times. .

In a possible implementation, as shown in FIG. 4 , the distributed SIM service management module 4012 of the first device may send a device connection request to the distributed SIM service management module 4015 of the second device through the distributed bus 4013 and the distributed bus 4014 .

It can be understood that the data interaction between the distributed SIM service management module of the first device and the distributed SIM service management module of the second device in the embodiment of the present application can be transmitted based on the above-mentioned distributed bus, which will be described later No longer.

It can be understood that, in the embodiment corresponding to FIG. 4 , the distributed SIM service management module of the first device may establish a connection with the distributed SIM service management module of the second device by default. In a possible implementation, when no connection is established between the distributed SIM service management module of the first device and the distributed SIM service management module of the second device, the distributed SIM service management module of the first device and the distributed SIM service management module of the second device The distributed SIM service management module can establish a connection based on the steps shown in S1103-S1104.

S1104. The distributed SIM service management module of the second device sends a device connection success response to the distributed SIM service management module of the first device, and establishes a connection with the first device.

The second device returns a device connection success response to the first device, and after establishing a connection with the first device, device communication can be realized between the first device and the second device.

It can be understood that S1103 and S1104 may be the process of establishing a connection between the distributed SIM service management module of the first device and the distributed SIM service management module of the second device. It can also be established by means of wireless network connection or other network connection protocols, that is, there are many ways to establish a connection between the distributed SIM service management module of the first device and the distributed SIM service management module of the second device. This is not limited in the embodiments of the present application.

S1105. The distributed SIM service management module of the first device sends a remote SIM request to the distributed SIM service management module of the second device. The remote SIM request is used to instruct the first device to request remote access to the SIM card of the second device. For example, the remote SIM request may be the rSIM command described in connection with FIG. 4 .

In the embodiment of the present application, the remote SIM request is used to request the second device to share the function of its own SIM card, and may also be understood as a request for the first device to use the SIM card of the second device. In a possible implementation, the remote SIM request may carry the unique identifier of the first device (such as the address and port number of the first device) and the unique identifier of the second device (such as the address and port number of the second device).

Exemplarily, after the first device establishes a connection with the second device, the distributed SIM service management module of the first device may automatically trigger sending a remote SIM request to the distributed SIM service management module of the second device. Specifically, if the distributed SIM service management module of the first device and the distributed SIM service management module of the second device establish a connection through the distributed bus in step S1104, the distributed SIM service management module of the first device and the second device The distributed SIM service management module can establish a connection through a distributed bus 4013 and a distributed bus 4014 as shown in FIG. 4 . In some embodiments, the distributed bus can encrypt and encapsulate the sent data (for example, remote SIM request) to ensure data security during the sending process.

S1106. The distributed SIM service management module of the second device switches the SIM card mode to a remote service (remote server) mode.

In the embodiment of the present application, the remote service mode is used to instruct the SIM card slot driver of the second device to read the SIM card information not through the local SIM processing module, but through the remote SIM service module to pass the SIM card information through the second device. The distributed SIM service management module of the device forwards the information to the distributed SIM service management module of the first device.

In a possible implementation, as shown in FIG. 4, when the distributed SIM service management module 4015 of the second device receives the remote SIM request sent by the first device based on the steps shown in S1105, the remote SIM request may be sent via The remote SIM RIL module 4017 in the RIL is sent to the Modem module, and the Modem module can realize switching the SIM card mode to the remote service mode.

In a possible implementation, when there is only one SIM card in the second device, and the second device shares the SIM card with the first device, the second device may present to the upper layer of the device the no-card corresponding to the remotely shared SIM card. state. Or, when two SIM cards are included in the second device, the second device may present the card-free state of the SIM card corresponding to the remote shared SIM card function to the upper layer of the device, and another SIM card in the second device may be The second device provides local SIM card functionality.

S1107. The distributed SIM service management module of the second device sends a remote SIM response to the distributed SIM service management module of the first device.

In this embodiment of the present application, the remote SIM response may be response data corresponding to the rSIM command described in the embodiment corresponding to FIG. 4 . The remote SIM response is used to indicate that the second device has accepted the remote SIM request sent by the first device in step S1106, and allows sharing its own SIM function with the first device.

S1108. The distributed SIM service management module of the first device switches the SIM card mode to a remote client (remote client) mode.

In the embodiment of the present application, the remote client mode is used to instruct the first device not to read the SIM card information through the local SIM card slot driver, but to read the remote SIM card information of the second device through the rSIM interface or the like.

In a possible implementation, as shown in FIG. 4, when the distributed SIM service management module 4012 of the first device receives the remote SIM response sent by the second device based on the step shown in S1107, the distributed SIM of the first device The service management module 4012 can send the remote SIM response to the Modem module via the remote SIM RIL module 4010 in the RIL, and the Modem module can switch the SIM card mode to the remote client mode.

S1109. The distributed SIM service management module of the first device sends an ATR request to the distributed SIM service management module of the second device.

In a possible implementation, as shown in FIG. 4, the ATR request may be initiated by the Modem of the first device, and sent to the distributed SIM service management module 4015 of the second device along the steps shown in S4104-S4106. Further, the distributed SIM service management module 4015 of the second device may send the ATR request to the Modem module along the steps shown in S4107-S4108.

Adaptively, the Modem module of the second device may generate an ATR response according to the ATR request, and send it to the distributed SIM service management module 4015 of the second device along the steps shown in S4109-S4120, so that the distributed SIM service management module 4015 of the second device Module 4015 may execute the steps shown in S1110.

S1110. The distributed SIM service management module of the second device sends an ATR response to the distributed SIM service management module of the first device.

In a possible implementation manner, the distributed SIM service management module 4015 of the second device may return the ATR response to the SIM service management module 4012 of the first device based on the steps shown in S4121. Further, the SIM service management module 4012 of the first device may return the ATR response to the Modem module of the first device along the steps shown in S4122-S4123.

S1111. The distributed SIM service management module of the first device sends an APDU request to the distributed SIM service management module of the second device.

S1112. The distributed SIM service management module of the second device sends the APDU result to the distributed SIM service management module of the first device.

For the transmission process of the APDU request between the first device and the second device, please refer to the ATR request in the steps shown in S1109-S1110; for the transmission process of the APDU result between the first device and the second device, please refer to The ATR response in the steps shown in S1109-S1110 will not be repeated here.

It can be understood that, the ATR request, ATR response, APDU request, and APDU result can all be commonly used request or response methods in the SIM card communication protocol, which will not be repeated here. Wherein, both the ATR request and the APDU request can be used to obtain the SIM card information of the second device.

The multiple executions of APDU requests and APDU results can be understood as that the first device cannot read SIM card information of all second devices based on one APDU request due to the limited bandwidth of one instruction. For example, when the SIM card of the second device contains 200 pieces of contact information, the first device can use one APDU to request to read the contact information once, until the 200 pieces of contact information in the SIM card of the second device are read. Reading is complete.

In a possible implementation manner, the steps shown in S1111-S1112 may be executed multiple times between the distributed SIM service management module of the first device and the distributed SIM service management module of the second device.

Through S1101-S1112, the first device has completed the configuration work of using the SIM card function of the second device, and the second device has completed the configuration work of providing the SIM card function of the second device for the first device, that is, completed through S1101-S1112 The preparation work of the first device before using the SIM card function of the second device.

It can be understood that, S1101-S1112 is only an implementation manner of realizing the preparatory work of the first device before using the SIM card function of the second device. The preparatory work before using the SIM card function of the second device is not limited in this embodiment of the present application.

S1113. The distributed SIM service management module of the first device updates the status of the SIM card.

In this embodiment of the present application, updating the status of the SIM card is used to instruct the first device to use the remote SIM card.

S1114. The distributed SIM service management module of the first device sends a message for indicating the completion of the distributed SIM service to the SIM card management application of the first device.

It can be understood that the message for indicating the completion of the distributed SIM service may be the response data corresponding to the rSIM command in the embodiment corresponding to FIG. 4 .

In a possible implementation, as shown in FIG. 4, the distributed SIM service management module of the first device may send a message indicating that the distributed SIM service is completed to the SIM card management application of the first device through the steps shown in S4122-S4126. information.

S1115. The SIM card management application of the first device displays an interface where the user accesses the remote SIM successfully.

In this embodiment of the present application, the interface where the user successfully accesses the remote SIM is used to instruct the first device to remotely access the SIM card of the second device. For example, the first device may display an interface as shown in Fig. 7a or Fig. 7b.

Based on this, through the above S1101-S1115, the distributed SIM service management module of the first device can remotely use the SIM card function of the second device through data interaction with the distributed SIM service management module of the second device.

In a possible implementation, on the basis of the embodiment corresponding to FIG. 11 , functions such as device discovery, device authentication, and device access can be implemented between the first device and the second device through the device cloud, and through the service switching center (or (referred to as switching center) to realize signaling exchange.

Exemplarily, FIG. 12 is a schematic diagram of a function introduction of a device cloud and a switching center provided in an embodiment of the present application. As shown in FIG. 12 , the system for remotely accessing a SIM card provided by the embodiment of the present application may include: a first device, a second device, a device cloud, and a switching center.

It can be understood that the two independent parts on the cloud side, such as the device cloud and the switching center, do not need to connect to the cloud/cloud interface. It can be understood that the device cloud and the switching center can be independent of each other, and the two can adopt different device authentication systems, and the different device authentication systems enable the first device and the second device to access the above-mentioned Two devices perform device authentication and obtain corresponding resources after device authentication.

The device cloud can be directly adapted or modified on the existing cloud service of the terminal manufacturer, and the account authentication system can be reused; the newly built switching center can be used to support SIM signaling (such as APDU, ATR, SIM card insertion and removal) after the service starts. events, etc.) exchange. Wherein, the multiplexed account authentication system can be understood as: the device cloud can use the applicable account authentication system in the existing cloud service of the terminal manufacturer to perform device authentication.

For the device cloud, as shown in Figure 12, for example, the device cloud can provide: device authentication function, SIM card capability reporting function, SIM card capability query function, and low-speed security terminal interaction channel and other functions. Wherein, the low-speed secure terminal interaction may be triggered by a service and used to realize the transfer of the temporary password.

Device authentication function: used to ensure the security of device pairs for remote SIM access. For example, before the SIM sharing service is triggered, the cloud device may authenticate the first device to ensure the credibility of the first device. Alternatively, it can also be understood that the second device needs to confirm that the first device that is about to remotely use its own SIM card is an authenticated and trustworthy device.

SIM card capability reporting function: it can be understood that the second device can report the shared SIM card to the device cloud for query by the first device.

SIM card capability query function: it can be understood that the first device can query the available SIM card of the second device based on the SIM card capability of the second device stored in the device cloud.

Low-speed secure terminal interaction channel: it can be understood as a secure channel for transferring messages between the first device and the second device.

As for the switching center, as shown in FIG. 12 , for example, the switching center can provide: a security access function and an application layer routing function.

Security access function: it can be understood that the switching center can perform security authentication for the access device pair, such as the authentication of the device pair (or device group).

Application layer routing function: It can be understood that the switching center can allocate temporary switching resources for devices to support the application layer data exchange in this service.

It can be understood that, usually, the device cloud can support narrowband transmission and a small amount of configuration information and control signal interaction. However, for the remote access SIM card service in the embodiment of the present application, especially in the stage of staying on the network, there will be frequent and a large amount of data interaction between devices, which will increase the load of the device cloud. It is necessary to seek other strategies to reduce the load on the device cloud. However, the traditional point-to-point (Point To Point, P2P) method has poor adaptability to Internet Service Provider (Internet Service Provider, ISP) compatibility, network deployment, and terminal complexity. Therefore, in the embodiment of the present application, an additional cloud service switching center can be built to realize direct data interaction between far-field devices through application layer routing. In a possible implementation manner, the embodiment of the present application may not need to build an additional cloud service switching center, for example, an existing switching center may also be used to realize data interaction between far-field devices.

In a possible implementation, on the basis of the embodiments corresponding to Fig. 11 and Fig. 12, the method for remotely accessing the SIM card provided by the embodiment of the present application may involve: the first device, the second device, the device cloud, and the exchange center data exchange.

Exemplarily, FIG. 13 is a schematic flowchart of another method for remotely accessing a SIM card provided by an embodiment of the present application.

Specifically, the method for remotely accessing the SIM card may include the following steps:

S1301. The first device sends a login message to the device cloud.

In this embodiment of the present application, the login message may include: device information of the first device, account information of the first device, password information of the first device, and the like.

Adaptively, the device cloud may receive the login message of the first device, and perform device authentication on the first device based on the account information and password information when the first device logs in, and execute the steps shown in S1302 after the authentication is passed.

S1302. The device cloud sends response data corresponding to the login message to the first device.

Wherein, the response data corresponding to the login message is used to indicate that the device cloud has received the login message.

S1303. The second device sends a login message to the device cloud.

In this embodiment of the present application, the login message may include: device information of the second device, account information of the second device, password information of the second device, and the like.

Adaptively, the device cloud may receive the login message of the second device, and perform device authentication on the second device based on the account information and password information when the second device logs in, and execute the steps shown in S1304 after the authentication is passed.

S1304. The device cloud sends response data corresponding to the login message to the second device.

S1305. The second device reports the local SIM capability to the device cloud.

In this embodiment of the present application, the native SIM capability is used to indicate the usage status of the SIM card of the second device. For example, the native SIM capability may include: the card slot information of the second device, and the information used to indicate the SIM in the card slot. Whether the card supports remote access information, etc. In a possible implementation manner, when the second device does not include a SIM hard card but only includes an eSIM card, the local SIM capability may include: eSIM card information of the second device, and the like.

S1306. The first device sends a message for querying available remote SIM cards to the device cloud.

Wherein, the message for querying available remote SIM cards may be embodied as a request. For example, the first device sends a request for querying available remote SIM cards to the device cloud.

S1307. The device cloud sends a message for indicating an available remote SIM card to the first device.

In this embodiment of the present application, the message for indicating the available remote SIM card may include the SIM card capability reported by the second device in the step shown in S1305.

It can be understood that, S1306-S1307 may correspond to S1101 in the embodiment corresponding to FIG. 11 .

S1308. The first device receives an operation of triggering the distributed service by the user.

The operation of the distributed service can be the corresponding operation when starting the remote SIM card function in the steps shown in S4101 in the embodiment corresponding to Figure 4; the operation of the distributed service can also be the operation of S1102 in the embodiment corresponding to Figure 11 The first device receives an operation that the user triggers any device among all available devices to act as the second device.

It can be understood that the remote SIM card access process can only be performed after the first device and the second device perform device-to-device authentication based on the steps shown in S1309-S1314 below.

S1309. The first device sends a temporary token message to the device cloud.

Wherein, the temporary token message is used for performing device pair authentication on the first device and the second device, for example, the temporary token message may be a random password.

S1310. The device cloud sends a temporary token message to the second device.

It can be understood that, after S1301-S1310, the first device and the second device may enable distributed services.

S1311. The first device sends a connection request to the switching center.

Wherein, the connection request is used to access the switching center, for example, the connection request may include a temporary token message corresponding to the first device.

S1312. The second device sends a connection request to the switching center.

Wherein, the connection request may include a temporary token message corresponding to the second device.

It can be understood that after the first device and the second device respectively report their SIM card capabilities to the switching center, the first device and the second device can establish a device connection through the switching center.

S1313. The switching center performs device pair authentication.

In the embodiment of the present application, since the cloud/cloud interface between the switching center and the device cloud service is not set, the switching center can perform security authentication by means of device-to-device authentication. Exemplarily, after the switching center waits for the connection requests of the first device and the second device to arrive within the time window, based on the temporary token message of the first device and the temporary token message of the second device, the first device and the second device Perform device authentication, and further, when the device pair is authenticated successfully, temporary exchange resources can be allocated for both devices, and the temporary exchange resources are used to support the application layer data exchange in this service.

In a possible implementation, a cloud/cloud interface can also be added between the switching center and the device cloud, so that the switching center can directly use the existing account authentication system in the device cloud for security authentication. For details, refer to the corresponding embodiment in Figure 16 . It can be understood that the switching center can save system cost and simplify the complexity of system management by reusing the original account authentication system of the device cloud.

It can be understood that the switching center may also perform device security authentication based on other methods, which is not specifically limited in this embodiment of the present application.

S1314. The switching center simultaneously sends a message indicating successful authentication to the first device and the second device.

S1315. The first device sends the message to the switching center.

Wherein, the message may be an ATR request in the step shown in S1111 in the embodiment corresponding to FIG. 11 , or an APDU request in the step shown in S1113 .

Exemplarily, the first device may communicate based on the temporary switching resource allocated by the switching center in the step shown in S1313.

S1316. The switching center performs application layer data exchange.

S1317. The switching center sends the message to the second device.

It can be understood that, in the embodiment corresponding to FIG. 11 , the ATR request or the APDU request may be sent by the first device to the second device via the switching center, and the switching center is not shown in FIG. 11 .

Based on this, both the first device and the second device can perform device-to-device authentication by connecting with the device cloud and the switching center, thereby enhancing the security of data transmission during remote SIM access.

In a possible implementation manner, since an interface between the switching center and the device cloud service is not set, the switching center cannot directly use the existing account system for security authentication. On the basis of the embodiment corresponding to FIG. 13 , this embodiment of the present application proposes a device pair mutual authentication method based on a temporary negotiated password. Wherein, the temporary negotiated password may be a temporary token message.

Exemplarily, FIG. 14 is a schematic flow chart of a device pair authentication method proposed in the embodiment of the present application. In the embodiment corresponding to FIG. 14, the temporary token message may be a conventional mechanism for identity authentication. Usually, the resources in the network are limited, so it is necessary to authenticate the identity of the resource requester to determine whether to allocate the requested resource to the requester.

For example, the process of device-to-device authentication using the switching center may be as follows: initially, the first device may adopt a certain policy to generate a temporary token message, and send the temporary token message to the second device. Further, both the first device and the second device can use an encryption algorithm to encrypt the temporary token message, and send the encrypted temporary token message to the switching center respectively, so that the switching center can encrypt the first device and the second device based on the secret key. The encrypted temporary token messages respectively sent by the second device are verified to implement device-to-device authentication, and corresponding resources are allocated after the device is authenticated.

As shown in Figure 14, the specific process of the device for the authentication method may include the following steps:

S1401. The first device receives an operation of a user triggering a distributed service.

For the operation of the distributed service, reference may be made to the distributed service operation in step S1308, which will not be repeated here.

S1402. The first device generates a temporary token message.

Wherein, the temporary token message may refer to the temporary token message in the step shown in S1309.

S1403. The first device sends a temporary token message to the device cloud.

S1404. The device cloud sends the temporary token message to the second device.

It can be understood that, after S1401-S1404, the first device and the second device may start distributed services.

S1405. The first device encrypts the temporary token message and sets a time stamp.

Wherein, the timestamp may be the valid time of the temporary token message. For example, when the temporary token message has exceeded its valid time, the temporary token message expires, and the first device may renew the temporary token or generate a new temporary token, which is not limited in this embodiment of the application.

S1406. The second device encrypts the temporary token message and sets a time stamp.

It can be understood that, in the steps shown in S1405-S1406, both the first device and the second device may use methods such as asymmetric encryption to encrypt the temporary token message through the held public key.

S1407. The first device sends the encrypted token message to the switching center.

S1408. The second device sends the encrypted token message to the switching center.

S1409. The switching center verifies the tokens of both parties.

Exemplarily, the switching center receives the encrypted token message sent by the first device and the encrypted token message sent by the second device within the preset time window, and decrypts the encrypted tokens of both parties through the held private key. and compare the decrypted token messages of the two parties. When the comparison is successful, the switching center can perform the steps shown in S1410.

S1410. The switching center allocates switching resources.

S1411. The switching center simultaneously sends a message indicating successful authentication to the first device and the second device.

Based on this, the exchange center can authenticate the device pair through a temporary negotiated password, such as a temporary token message, which reduces the complexity of the system, reduces the risk of account and password leakage, and enhances system security.

In a possible implementation, based on the embodiments corresponding to FIG. 13 and FIG. 14 , the switching center can provide multiple functions for the system for remotely accessing the SIM card provided in the embodiment of the present application. Exemplarily, FIG. 15 is a schematic diagram of a functional architecture of a switching center provided in an embodiment of the present application.

As shown in Fig. 15, the switching center can provide: switching resource management service, status inspection service, and interface authentication service.

For switching resource management service: it can allocate resources for the equipment pairs accessing the switching center. For example, the exchange resource management service may also support services such as topic management, queue parameter management, and cluster management.

Exemplarily, the exchange center can build one or more clusters according to factors such as the ISP network and geographical location, so that the cluster scale can be flexibly scaled according to the actual situation. For example, when the data connected to the exchange center is large, the nodes can be stretched, Improve service performance; when there is less access data, nodes can be deactivated to save resources.

Exemplarily, the exchange center can also provide a high-performance message queue service, such as using a message queue (Rabbit Message Queue, RabbitMQ) and Kafka developed by Rabbit Company. The message queuing service uses an advanced message queuing protocol (Advanced Message Queuing Protocol, AMQP) with a secure socket (Secure Sockets Layer, SSL) to connect and interact with the device (such as the first device and/or the second device); Routing rules can be set for queues, so that devices can communicate with each other through application layer exchange.

For status monitoring service: corresponding resources can be provided according to the status of the device. For example, the status monitoring service may also support services such as resource monitoring, terminal heartbeat monitoring, and terminal status management.

Exemplarily, resources can be allocated to a device when it is connected to the switching center, and resources can be released when the device is in an idle state, and the switching center can allocate the released resources to other devices to achieve efficient management of resources.

For interfaces and authentication services: For example, the interface and authentication services can also support services such as request interfaces, authentication algorithms, secret key management, and authentication cache management.

Exemplarily, for the request interface, the switching center may open the interface, so that the device can be accessed at any time.

For authentication cache management, when there are many devices connected to the switching center, the switching center can cache information such as access device status, device authentication status, and exchanged data, and release links that have timed out and have no messages.

For the authentication algorithm, the switching center can perform device authentication based on the authentication method for the device pair described in the above-mentioned embodiments (such as the embodiment corresponding to FIG. 13 and FIG. 14 ), for example, by temporarily negotiating a password.

For secret key management, the switching center can decrypt the encrypted messages carried by the device pairs based on the held private key, such as the encrypted token message described in the above embodiments.

Based on this, the switching center can implement application-layer routing through switching resource management services, status inspection services, and interface authentication services.

It can be understood that, the above-mentioned Figures 13-15 may not set a cloud/cloud interface between the switching center and the device cloud service, so that the switching center can perform security authentication by means of device-to-device authentication. Exemplarily, FIG. 16 is a schematic flowchart of another method for remotely accessing a SIM card provided by an embodiment of the present application.

It can be understood that, compared with the embodiment corresponding to FIG. 13, a cloud/cloud interface is added between the switching center and the device cloud in FIG. 16, so that the switching center can directly use the existing account authentication system in the device cloud for security authentication. Therefore, there is no need to transmit token messages between the first device and the second device.

As shown in Figure 16, the method for remotely accessing the SIM card may include the following steps:

S1601. The first device sends a login message to the device cloud.

S1602. The device cloud sends response data corresponding to the login message to the first device.

S1603. The second device sends a login message to the device cloud.

S1604. The device cloud sends response data corresponding to the login message to the second device.

S1605. The second device reports the local SIM capability to the device cloud.

S1606. The first device sends a message for querying available remote SIM cards to the device cloud.

S1607. The device cloud sends a message indicating an available remote SIM card to the first device.

S1608. The first device receives an operation of triggering the distributed service by the user.

Wherein, for the above steps shown in S1601-S1608, reference may be made to the steps shown in S1301-S1308, which will not be repeated here.

It can be understood that the remote SIM card access process can only be performed after the first device and the second device perform device-to-device authentication based on the steps shown in S1609-S1615 below.

S1609. The first device sends a connection request to the switching center.

Wherein, the connection request may carry device information of the first device, account information of the first device, password information of the first device, and the like. It can be understood that the information carried in the connection request may be used to perform device authentication on the first device.

S1610. The switching center sends a request for device authentication to the device cloud.

It can be understood that since the cloud/cloud interface is established between the switching center and the device cloud, the switching center can perform device authentication on the access device based on the authentication method used in the device cloud, so the switching center can initiate a device authentication to the device cloud. Authentication request.

S1611. The second device sends a connection request to the switching center.

Wherein, the connection request may carry device information of the second device, account information of the second device, password information of the second device, and the like. It can be understood that the information carried in the connection request can be used to perform device authentication on the second device.

S1612. The switching center sends a request for device authentication to the device cloud.

It can be understood that S1609-S1610 and S1611-S1612 may be performed synchronously or asynchronously, which is not specifically limited in this embodiment of the present application.

S1613. The device cloud performs device pair authentication.

It can be understood that the device cloud can directly use the existing account authentication system to perform device pair authentication, so that both the first device and the second device connected to the switching center are trusted devices.

S1614. The device cloud sends a message to the switching center indicating that the authentication of the device pair is successful.

S1615. The switching center simultaneously sends a message indicating successful authentication to the first device and the second device.

S1616. The first device sends the message to the switching center.

S1617. The switching center performs application layer data exchange.

S1618. The switching center sends the message to the second device.

It can be understood that the steps shown in S1615-S1618 are similar to the steps shown in S1313-S1317, and will not be repeated here.

Based on this, both the first device and the second device can perform device-to-device authentication through the device cloud connected to the switching center, thereby enhancing the security of data transmission during remote SIM access.

It can be understood that the interface provided in the foregoing embodiment is only used as an example, and does not constitute a limitation to the embodiment of the present application.

The method provided by the embodiment of the present application is described above with reference to FIGS. 11-16 , and the device for performing the above method provided by the embodiment of the present application is described below. As shown in Figure 17, Figure 17 is a schematic structural diagram of a device for remotely accessing a SIM card provided by an embodiment of the present application. The device for remotely accessing a SIM card may be the electronic device in the embodiment of the present application, or it may be an electronic device chip or system-on-a-chip.

It can be understood that, as shown in FIG. 17 , the device 170 for remotely accessing the SIM card described in the embodiment of the present application may be the device corresponding to the method executed in the first device, or the device corresponding to the method executed in the second device. device.

The device for remotely accessing a SIM card includes: a display unit 1701 , a processing unit 1702 , and a communication unit 1703 . Among them, the display unit 1701 is used to support the steps of displaying performed by the device 170 for remote access to the SIM card; the processing unit 1702 is used for the steps of information processing performed by the device 170 for supporting the remote access to the SIM card; the communication unit is used to support the remote access to the SIM card The means 170 perform the steps of sending data and receiving data. Wherein, the communication unit 1703 may be an input or output interface, a pin or a circuit, and the like.

Specifically, the embodiment of the present application provides an apparatus 170 for remotely accessing a SIM card, and the communication unit 1703 of the first device is configured to send a remote SIM request to the second device; wherein the remote SIM request is used to instruct the first device to request a remote SIM card. Access the SIM card of the second device; the communication unit 1703 of the second device is configured to send response data corresponding to the remote SIM request to the first device; wherein, the response data corresponding to the remote SIM request is used to instruct the second device to allow the first device to Remotely access the SIM card of the second device; the processing unit 1702 of the first device is used to access the SIM card of the second device.

In a possible implementation, the processing unit 1702 of the second device is further configured to switch the SIM card mode of the second device to the remote service mode according to the remote SIM request; The SIM card of the device is shared with the first device.

In a possible implementation, the processing unit 1702 of the first device is further configured to switch the SIM card mode of the first device to the remote client mode; the remote client mode is used to instruct the first device to use the SIM card of the second device .

In a possible implementation manner, the communication unit 1703 of the first device is specifically configured to send a reset response ATR request to the second device; the communication unit 1703 of the second device is specifically configured to send an ATR request to the first device according to the ATR request. ATR response; the communication unit 1703 of the first device is specifically used to send an application protocol data unit APDU request to the second device; the communication unit 1703 of the second device is specifically used to send an APDU result to the first device according to the APDU request; The processing unit 1702 of a device is specifically configured to access the SIM card of the second device according to the APDU result.

In a possible implementation manner, the communication unit 1703 of the first device is further configured to send a first request to the second device; the first request is used to indicate that the first device requests to establish a connection with the second device; The communication unit 1703 is further configured to send response data corresponding to the first request to the first device according to the first request; the response data corresponding to the first request is used to instruct the second device to allow establishing a connection with the first device.

In a possible implementation manner, the system for remotely accessing the SIM card further includes: a third device, the communication unit 1703 of the first device, further configured to send a remote SIM request to the second device through the third device.

In a possible implementation manner, the remote SIM request includes a temporary token message, and the system for remotely accessing the SIM card further includes: a fourth device, and the communication unit 1703 of the first device is further configured to send the second request to the fourth device ; The second request contains a temporary token message; the communication unit 1703 of the second device is also used to send a third request to the fourth device; the third request contains a temporary token message; when the fourth device determines the temporary token in the second request When the token message is consistent with the temporary token message in the third request, the communication unit 1703 of the second device is further configured to send response data corresponding to the remote SIM request to the first device through the fourth device.

In a possible implementation manner, the system for remotely accessing the SIM card further includes: a fourth device, the fourth device is connected to the third device through an interface, and the communication unit 1703 of the first device is also configured to send the fourth device to the fourth device. Four requests; the fourth request includes the first encrypted information for logging into the preset account; the fourth device sends the fourth request to the third device; the communication unit 1703 of the second device is also used to send the fifth request to the fourth device request; the fifth request includes the second encrypted information for logging into the preset account; the fourth device sends the fifth request to the third device; when the fourth device determines that the first encrypted message is consistent with the second encrypted message, the second The communication unit 1703 of the device is further configured to send response data corresponding to the remote SIM request to the first device through the fourth device.

In a possible implementation manner, the communication unit 1703 of the second device is further configured to report the SIM card information of the second device to the third device; the communication unit 1703 of the first device is further configured to send the second Sixth request; the sixth request is used to request to query available remote SIM cards; the communication unit 1703 of the third device is further configured to send the SIM card information of the second device to the first device according to the sixth request.

In a possible implementation manner, the display unit 1701 of the first device is also used to display a SIM card management interface, and the SIM card management interface includes an option for setting the use of a remote SIM card; the display unit 1701 of the first device, It is also used to display the identification of one or more available devices when receiving a trigger for setting the option for using a remote SIM card, and the available device is a device that supports the remote SIM card access function; the processing unit 1702 of the first device receives When the identification of the second device among the available devices is triggered, the communication unit 1703 of the first device is further configured to send a remote SIM request to the second device.

In a possible implementation manner, the display unit 1701 of the first device is further configured to display an identifier for identifying a connected SIM card.

In a possible implementation manner, when the processing unit 1702 of the first device receives the pull-down operation, the display unit 1701 of the first device is also used to display the pull-down interface; the pull-down interface includes: prompting that the first device is Access the information of the SIM card of the second device.

In a possible implementation manner, the display unit 1701 of the first device is also used to display the SIM card management interface; wherein, the SIM card management interface further includes the ID of the SIM card of the second device, and is used to disable the second The control of the SIM card of the device; the processing unit 1702 of the first device is further configured to stop accessing the SIM card of the second device when a trigger for deactivating the control of the SIM card of the second device is received.

In a possible implementation manner, the display unit 1701 of the second device is further configured to display prompt information; the prompt information is used to prompt that no SIM card to be remotely accessed is inserted into the second device.

In a possible implementation manner, the apparatus for remotely accessing the SIM card may further include: a storage unit 1704 . The processing unit 1702 and the storage unit 1704 are connected by wires. The storage unit 1704 may include one or more memories, and the memories may be devices used to store programs or data in one or more devices and circuits. The storage unit 1704 may exist independently, and is connected to the processing unit 1702 of the device for remotely accessing the SIM card through a communication line. The storage unit 1704 can also be integrated with the processing unit 1702 .

The storage unit 1704 may store computer execution instructions of the methods in the electronic device, so as to enable the processing unit 1702 to execute the methods in the foregoing embodiments. The storage unit 1704 may be a register, a cache, or a RAM, etc., and the storage unit 1704 may be integrated with the processing unit 1702 . The storage unit 1704 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, and the storage unit 1704 may be independent from the processing unit 1702.

Exemplarily, FIG. 18 is a schematic structural diagram of a chip provided by an embodiment of the present application. The chip 180 includes one or more than two (including two) processors 1820 and a communication interface 1830 . Wherein, the chip may be a chip in the first device, or a chip in the second device.

In some implementations, the memory 1840 stores the following elements: executable modules or data structures, or subsets thereof, or extensions thereof.

In this embodiment of the present application, the memory 1840 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1820 . A part of the memory 1840 may also include a non-volatile random access memory (non-volatile random access memory, NVRAM).

In the embodiment of the present application, the memory 1840 , the communication interface 1830 and the memory 1840 are coupled together through the bus system 1810 . Wherein, the bus system 1810 may include not only a data bus, but also a power bus, a control bus, and a status signal bus. For ease of description, the various buses are labeled bus system 1810 in FIG. 18 .

The methods described in the foregoing embodiments of the present application may be applied to the processor 1820 or implemented by the processor 1820 . The processor 1820 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method may be implemented by an integrated logic circuit of hardware in the processor 1820 or instructions in the form of software. The above-mentioned processor 1820 may be a general-purpose processor (for example, a microprocessor or a conventional processor), a digital signal processor (digital signal processing, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate Array (field-programmable gate array, FPGA) or other programmable logic devices, discrete gates, transistor logic devices or discrete hardware components, the processor 1820 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present invention .

The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. Wherein, the software module may be located in a mature storage medium in the field such as random access memory, read-only memory, programmable read-only memory, or electrically erasable programmable read only memory (EEPROM). The storage medium is located in the memory 1840, and the processor 1820 reads the information in the memory 1840, and completes the steps of the above method in combination with its hardware.

In the above embodiments, the instructions stored in the memory for execution by the processor may be implemented in the form of computer program products. Wherein, the computer program product may be written in the memory in advance, or may be downloaded and installed in the memory in the form of software.

A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, special purpose computer, computer network, or other programmable apparatus. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g. Coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL) or wireless (such as infrared, wireless, microwave, etc.) transmission to another website site, computer, server or data center. Computer readable storage medium can be Any available media capable of being stored by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. For example, available media may include magnetic media (e.g., floppy disks, hard disks, or tapes), optical media (e.g., A digital versatile disc (digital versatile disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)), etc.

The embodiment of the present application also provides a computer-readable storage medium. The methods described in the foregoing embodiments may be fully or partially implemented by software, hardware, firmware or any combination thereof. Computer-readable media may include computer storage media and communication media, and may include any medium that can transfer a computer program from one place to another. A storage media may be any target media that can be accessed by a computer.

As a possible design, the computer-readable medium may include compact disc read-only memory (compact disc read-only memory, CD-ROM), RAM, ROM, EEPROM or other optical disc storage; the computer-readable medium may include a magnetic disk memory or other disk storage devices. Also, any connected cord is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of medium. Disk and disc, as used herein, includes compact disc (CD), laser disc, compact disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Reproduce data.

Combinations of the above should also be included within the scope of computer-readable media. The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present invention, and should cover all Within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

A method for remotely accessing a SIM card, characterized in that it is applied to a system for remotely accessing a SIM card, and the system for remotely accessing a SIM card includes: a first device and a second device, and the method includes:

The first device sends a remote SIM request to the second device; wherein the remote SIM request is used to instruct the first device to request remote access to the SIM card of the second device;

The second device sends response data corresponding to the remote SIM request to the first device; where the response data corresponding to the remote SIM request is used to instruct the second device to allow the first device to remotely access the second device. The SIM card of the second device;

The first device accesses the SIM card of the second device.
The method according to claim 1, wherein after the first device sends the remote SIM request to the second device, the method further comprises:

The second device switches the SIM card mode of the second device to a remote service mode according to the remote SIM request; the remote service mode is used to enable the second device to share the SIM card of the second device to the first device.
The method according to claim 1 or 2, wherein after the second device sends the response data corresponding to the remote SIM request to the first device, the method further comprises:

The first device switches the SIM card mode of the first device to a remote client mode; the remote client mode is used to instruct the first device to use the SIM card of the second device.
The method according to any one of claims 1-3, wherein the first device accessing the SIM card of the second device comprises:

The first device sends a reset response ATR request to the second device;

The second device sends an ATR response to the first device according to the ATR request;

The first device sends an application protocol data unit APDU request to the second device;

The second device sends an APDU result to the first device according to the APDU request;

The first device accesses the SIM card of the second device according to the APDU result.
The method according to any one of claims 1-4, characterized in that the system for remotely accessing the SIM card further comprises: a third device and a fourth device, the fourth device and the third device through an interface connected, the method further comprising:

The first device sends a fourth request to the fourth device; the fourth request includes first encrypted information for logging into a preset account;

the fourth device sends the fourth request to the third device;

The second device sends a fifth request to the fourth device; the fifth request includes second encrypted information for logging into the preset account;

the fourth device sends the fifth request to the third device;

The second device sends response data corresponding to the remote SIM request to the first device, including: when the fourth device determines that the first encrypted message is consistent with the second encrypted message, the second device Send the response data corresponding to the remote SIM request to the first device through the fourth device.
The method according to claim 5, wherein before the first device sends a remote SIM request to the second device, the method further comprises:

The second device reports the SIM card information of the second device to the third device;

The first device sends a sixth request to the third device; the sixth request is used to request to query available remote SIM cards;

The third device sends the SIM card information of the second device to the first device according to the sixth request.
The method according to any one of claims 1-6, wherein before the first device sends a remote SIM request to the second device, the method further comprises:

The first device displays a SIM card management interface, which includes an option for setting the use of a remote SIM card;

When the first device receives the trigger for setting the option for using the remote SIM card, it displays the identification of one or more available devices, and the available device is a device that supports the remote SIM card access function;

The sending of the remote SIM request to the second device by the first device includes: when the first device receives a trigger for the identification of the second device in the available devices, sending the remote SIM request to the second device. Remote SIM request.
The method according to claim 7, wherein after the first device accesses the SIM card of the second device, the method further comprises:

The first device displays an identifier for identifying a connected SIM card.
A method for remotely accessing a Subscriber Identity Module SIM card, characterized in that it is applied to a first device, and the method includes:

The first device sends a remote SIM request to the second device; wherein the remote SIM request is used to instruct the first device to request remote access to the SIM card of the second device;

The first device receives response data corresponding to the remote SIM request sent by the second device; wherein, the response data corresponding to the remote SIM request is used to indicate that the second device allows the first device to remotely access the SIM card of the second device;

The first device accesses the SIM card of the second device.
The method according to claim 9, wherein after the first device receives the response data corresponding to the remote SIM request sent by the second device, the method further comprises:

The first device switches the SIM card mode of the first device to a remote client mode; the remote client mode is used to instruct the first device to use the SIM card of the second device.
The method according to claim 9 or 10, wherein the first device accessing the SIM card of the second device comprises:

The first device sends a reset response ATR request to the second device;

The first device receives the ATR response sent by the second device;

The first device sends an application protocol data unit APDU request to the second device;

The first device receives the APDU result sent by the second device;

The first device accesses the SIM card of the second device according to the APDU result.
The method according to any one of claims 9-11, wherein before the first device sends a remote SIM request to the second device, the method further comprises:

The first device displays a SIM card management interface, which includes an option for setting the use of a remote SIM card;

When the first device receives the trigger for setting the option for using a remote SIM card, it displays the identification of one or more available devices, and the available device is a device that supports the remote SIM card access function;

The sending of the remote SIM request to the second device by the first device includes: when the first device receives a trigger for the identification of the second device in the available devices, sending the remote SIM request to the second device. Remote SIM request.
The method according to claim 12, wherein after the first device accesses the SIM card of the second device, the method further comprises:

The first device displays an identifier for identifying a connected SIM card.
A device for remotely accessing a Subscriber Identity Module SIM card, characterized in that it includes: a processor, a memory and a communication interface, the processor is coupled to the memory, the communication interface is used to perform data sending and receiving, the The memory is used to store a computer program, and when the processor invokes the computer program, the device executes the method according to any one of claims 9-13.
A computer-readable storage medium, the computer-readable storage medium stores a computer program, wherein, when the computer program is executed by a processor, the computer executes the method according to any one of claims 9 to 13 .
A computer program product, characterized in that it includes a computer program, and when the computer program is run, causes the computer to execute the method according to any one of claims 9 to 13.