Communication device of subscriber identity module card, terminal equipment and method for controlling SIM (Subscriber Identity Module) card

Abstract

The invention provides a communication device of a user identification card, terminal equipment and a method for controlling the SIM card. The communication device of the subscriber identity module comprises a plurality of subscriber identity modules (SIMs) which at least comprise an embedded subscriber identity module (eSIM); the modem is provided with at least two SIM interfaces; the switch unit is respectively connected with the at least two SIM interfaces and the plurality of SIM cards, the switch unit has a plurality of working states, the plurality of working states and the plurality of groups of SIM card combinations have a mapping relationship, and the SIM card combinations are formed by SIM cards with any number of SIM interfaces in the plurality of SIM cards; and the control unit is connected with the switch unit and is used for adjusting the working state of the switch unit according to the control signaling, so that the SIM cards in the target SIM card combination are respectively connected with the at least two SIM interfaces. According to the embodiment of the invention, a user can use any SIM card with the same number as the SIM interfaces to access the modem at the same time, and the problem that simultaneous use of the eSIM and any physical SIM card is limited is solved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless communication technology, and more specifically, to a communication device of a user identification card, a terminal device, and a method for controlling a SIM card. Background Art

[0002] With the development of communication technology, mobile terminals usually have multiple subscriber identity (SIM) cards and support multi-card multi-standby communication mode. SIM cards can be divided into physical SIM cards and embedded subscriber identity (eSIM) cards. SIM cards access the communication network through the SIM interface of the modem, and the number of SIM interfaces of the modem is usually less than the number of SIM cards. At present, the eSIM card is fixed to share a SIM interface of the modem with a physical SIM card. There is a problem that the eSIM card and the physical SIM card that shares the SIM interface cannot be activated and used at the same time. Summary of the invention

[0003] The embodiments of the present application provide a communication device of a user identification card, a terminal device and a method for controlling a SIM card. The various aspects involved in the embodiments of the present application are introduced below.

[0004] In a first aspect, a communication device of a user identification card is provided, comprising: a plurality of user identification cards SIM, including at least one embedded user identification card eSIM; a modem having at least two SIM interfaces, and the number of the SIM interfaces is less than the number of the plurality of SIM cards; a switch unit, respectively connected to the at least two SIM interfaces and the plurality of SIM cards, the switch unit having a plurality of working states, the plurality of working states having a mapping relationship with a plurality of groups of SIM card combinations, the SIM card combination being composed of SIM cards of any number of SIM interfaces among the plurality of SIM cards; a control unit, connected to the switch unit, for adjusting the working state of the switch unit according to control signaling, so that the SIM cards in the target SIM card combination are respectively connected to the at least two SIM interfaces.

[0005] In a second aspect, a terminal device is provided, comprising the communication device of the user identification card as described in the first aspect.

[0006] In a third aspect, a method for controlling a SIM card is provided, which is applied to a communication device of a user identification card, wherein the communication device of the user identification card comprises: a plurality of user identification cards SIM, including at least one embedded user identification card eSIM; a modem having at least two SIM interfaces, and the number of the SIM interfaces is less than the number of the plurality of SIM cards; a switch unit, respectively connected to the at least two SIM interfaces and the plurality of SIM cards, the switch unit having a plurality of working states, the plurality of working states having a mapping relationship with a plurality of groups of SIM card combinations, the SIM card combination being composed of SIM cards of any number of SIM interfaces among the plurality of SIM cards; a control unit, connected to the switch unit; the method comprises: receiving a control signaling for indicating connection of a target SIM card combination; and adjusting the working state of the switch unit according to the control signaling, so that the SIM cards in the target SIM card combination are respectively connected to the at least two SIM interfaces.

[0007] According to a fourth aspect, a non-volatile computer-readable storage medium is provided, on which a computer program is stored, wherein the computer program is used to execute the method according to the third aspect.

[0008] According to a fifth aspect, a computer program product is provided, comprising instructions for executing the method according to the third aspect.

[0009] The embodiment of the present application corresponds the SIM interface of the modem to multiple SIM card combinations respectively, so that the SIM cards in any SIM card combination can be connected to the SIM interface respectively and connected to the modem. The embodiment of the present application helps users connect any SIM cards with the same number of SIM interfaces to the modem, solving the problem of limited simultaneous use of eSIM and any physical SIM card. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The present invention is a schematic diagram of a communication circuit of a user identification card.

[0011] Figure 2 It is a schematic diagram of component units / partial component units of the communication device of the user identification card provided in an embodiment of the present application.

[0012] Figure 3 yes Figure 2 A schematic diagram of a possible implementation of a communication device.

[0013] Figure 4 It is a structural diagram of a terminal device provided in an embodiment of the present application.

[0014] Figure 5 yes Figure 4 A schematic diagram of a possible operation interface of a terminal device.

[0015] Figure 6 It is a flowchart of a method for controlling a SIM card provided in an embodiment of the present application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0017] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) system or new radio (NR), etc. The technical solutions provided in the present application can also be applied to future communication systems, such as the sixth generation mobile communication system, and satellite communication system, etc.

[0018] The terminal device in the embodiment of the present application may also be referred to as a terminal, user equipment (UE), user terminal, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote terminal, remote station, mobile device, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, and may be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using a sidelink signal. The cellular phone and the smart home device communicate with each other without relaying the communication signal through the base station.

[0019] The subscriber identification module (SIM) is a user identification card used to uniquely identify mobile users in cellular mobile communication systems. A SIM card, also known as a user identification card, may include a universal subscriber identity module (USIM), a universal integrated circuit card (UICC), a smart card, etc. The SIM card stores the user's data, authentication methods, and keys, which can be used by the communication network to identify the user's identity. At the same time, the user completes the connection with the communication system and the exchange of information through the SIM card. The mobile terminal must be inserted with a SIM to be recognized by the network, and then complete the network registration and realize wireless communication. With the development of communication technology, mobile terminals have evolved from supporting one SIM to supporting multiple SIMs, realizing a multi-card multi-standby communication mode.

[0020] According to the installation method, SIM cards can be divided into physical SIM cards and embedded SIM (eSIM) cards. Physical SIM cards, or physical SIM cards, are fixed in the card tray (or card slot) for easy insertion and removal in terminal devices.

[0021] eSIM is a virtual SIM card technology embedded in the device. Users can select operator networks and communication packages on terminal devices using eSIM cards by software registration or direct purchase, without the need for users to insert physical SIM cards. Compared with traditional physical SIM cards, eSIM cards do not require SIM card trays, which can save the printed circuit board (PCB) area of ​​electronic products, and can perform related services such as activation / deletion of SIM cards over the air. Currently, many overseas operators support eSIM functions. In order to be backward compatible, some terminal devices need to support two physical SIM cards while supporting eSIM cards. Taking a mobile phone as an example, there are 3 SIM cards (2 physical SIMs + 1 eSIM) in the mobile phone, and the modem of the mobile phone only has two SIM interfaces, which requires switching SIM cards through a switch.

[0022] Figure 1 FIG. 1 is a schematic diagram of a communication circuit of a user identification card provided by the related art. Figure 1 As shown, the communication circuit of the subscriber identity card may include: a modem 110 , a first physical SIM card 120 , a second physical SIM card 130 , an eSIM card 140 and a switch unit 150 .

[0023] The principle of SIM card hot swap is as follows: the mobile phone is usually equipped with a card tray detection circuit. When the card tray is inserted, the card tray detection circuit on the mobile phone PCB is in the on state; when the card tray is removed, the card tray detection circuit on the PCB is in the off state. The insertion and removal of the card tray can be sensed by this state change. When the mobile phone senses the insertion of the card tray through the detection circuit, the modem 110 will output a signal from the SIM card interface to detect the external SIM card.

[0024] The modem 110 has a first SIM interface and a second SIM interface, the first SIM interface is connected to the first physical SIM card 120, and the second SIM2 interface is connected to the second physical SIM card 130 and the eSIM card 140 through the switch unit 150. The switch unit 150 can be, for example, a single-pole double-throw switch. Each SIM card interface usually includes 4 lines, namely: VCC: SIM card power line; DATA: SIM card data line; RST: SIM card reset signal line; CLK: SIM card clock signal line. The first physical SIM card 120 and the second physical SIM card 130 are usually located on the same card tray, and can be located in slot 1 and slot 2 of the card tray respectively.

[0025] It can be seen that the eSIM card is fixed and shares a SIM interface of the modem with a physical SIM card (such as the second physical SIM card 130). In other words, the eSIM card and the physical SIM card that shares the SIM interface cannot be activated and used at the same time, which limits some usage for users. Usually multiple physical SIM cards belong to different operators. For example, a user wants to use an eSIM card with traffic or call package advantages and a physical SIM card that shares the SIM interface with it at the same time. For another example, usually the two card slots in the card tray are of different sizes. If the physical SIM card is not loaded in slot 1 of the card tray and the physical SIM card is loaded in slot 2, the eSIM card and the physical SIM card in slot 2 cannot be activated and used at the same time.

[0026] Therefore, how to develop a communication technology solution that can use an eSIM card and any physical SIM card at the same time is a problem that needs to be solved.

[0027] It should be noted that the scenario mentioned above in which the eSIM and the second physical SIM card cannot be used at the same time is only an example. The embodiments of the present application can be applied to any type of scenario in which a combination of SIM cards with any number of SIM interfaces in multiple SIM cards cannot access the communication network at the same time.

[0028] Based on this, an embodiment of the present application proposes a communication device for a user identification card. Figure 2 This is a schematic diagram of the component units / partial component units of the communication device of the user identification card proposed in the application embodiment. Figure 2The communication device of the user identification card of the embodiment of the present application is described in detail. Figure 2 As shown, the communication device 200 of the subscriber identity card may include: a plurality of subscriber identity cards 210 , a modem 220 , a switch unit 230 and a control unit 240 .

[0029] The plurality of user identification cards 210 include at least one embedded user identification card (eSIM card). A user identification card is a user identification module card (SIM card), which may include a USIM card, a UICC card, and the like.

[0030] In some embodiments, the multiple subscriber identification cards 210 may be 2 physical SIM cards and 1 eSIM card. In other embodiments, the multiple subscriber identification cards 210 may be 3 physical SIM cards and 1 eSIM card. For another example, the multiple subscriber identification cards 210 may be multiple physical SIM cards and multiple eSIM cards.

[0031] The modem 220 has at least two SIM interfaces, and the number of the SIM interfaces is less than the number of the plurality of subscriber identification cards 210. For example, the number of the plurality of subscriber identification cards 210 is three, and the modem 220 has two SIM interfaces. For another example, the number of the plurality of subscriber identification cards 210 is four, and the modem 220 has two or three SIM interfaces.

[0032] A modem is a device that converts digital signals into analog signals by modulation at the transmitting end, and converts analog signals into digital signals by demodulation at the receiving end. The modem contains the protocol stack of various network formats for network interaction, and the protocol stack can contain protocol codes specified by communication standards such as LTE / WCDMA, GSM, and CDMA. The modem can interact with the operator network through the protocol, that is, it supports data traffic to surf the Internet, make calls, send text messages, etc.

[0033] The switch unit 230 is connected to the at least two SIM interfaces and the multiple SIM cards 210, respectively, and is used to connect the SIM cards to the modem 210 through the SIM interfaces. The switch unit 230 has multiple working states, and the multiple working states are respectively mapped to multiple groups of SIM card combinations. Each SIM card combination is composed of SIM cards of any number of SIM interfaces in the multiple SIM cards 210, that is, the number of SIM cards in each SIM card combination is the same as the number of SIM interfaces of the modem 210. The SIM cards in any SIM card combination are respectively connected to a SIM interface. The switch unit 230 can have multiple forms, or can be a combination of multiple switches, so as to connect the at least two SIM interfaces to the SIM cards in any SIM card combination.

[0034] The control unit 240 is connected to the switch unit 230 and is used to adjust the working state of the switch unit 230 according to the control signaling so that the SIM cards in the target SIM card combination are respectively connected to the at least two SIM interfaces. The target SIM card combination is a combination of SIM cards that are expected to be used simultaneously. For example, the target SIM card combination can be a combination of a physical SIM card and an eSIM card, or the target SIM card combination can also be a combination of two physical SIM cards.

[0035] In some implementations, the number of the multiple SIM cards 210 is 3, which may include a first physical SIM card, a second physical SIM card, and an eSIM card. The at least two SIM interfaces may include a first SIM interface and a second SIM interface. Then the mapping relationship between the multiple working states of the switch unit 230 and the multiple SIM card combinations may include: when the switch unit 230 is in the first working state, the first physical SIM card is connected to the first SIM interface, and the second physical SIM card is connected to the second SIM interface; when the switch unit 230 is in the second working state, the first physical SIM card is connected to the first SIM interface, and the eSIM card is connected to the second SIM interface; when the switch unit 230 is in the third working state, the second physical SIM card is connected to the first SIM interface, and the eSIM card is connected to the second SIM interface. In some embodiments, the first physical SIM card may be any physical SIM card among the multiple SIM cards 210, and the second physical SIM card may be any physical SIM card among the multiple SIM cards 210 that is different from the first physical SIM card.

[0036] In some implementations, the switch unit 230 includes a first single-pole double-throw switch and a second single-pole double-throw switch. The first single-pole double-throw switch is respectively connected to the first SIM interface, the first physical SIM card, and the second physical SIM card; the second single-pole double-throw switch is respectively connected to the second SIM interface, the second physical SIM card, and the eSIM card. For example, the fixed end of the first single-pole double-throw switch is connected to the first SIM interface, and the active end is respectively connected to the first physical SIM card and the second physical SIM card.

[0037] In some implementations, the communication device 200 of the user identification card may include a card tray and a detection unit. The card tray is used to fix a physical SIM card, for example, the card tray can fix a first physical SIM card and a second physical SIM card. The detection unit is connected to the card tray and is used to detect whether a physical SIM card is loaded in the card tray. The control unit 240 is also used to perform the following operations: when the detection unit detects that only one physical SIM card is loaded in the card tray and the eSIM card does not have a communication network turned on, a first message is sent, and the first message is used to prompt the user whether to turn on the eSIM card and connect the eSIM card to the communication network. For example, when the detection unit detects that only the second physical SIM card is loaded in the card tray and the first physical SIM card is not loaded, and the eSIM card does not have a communication network turned on, a first message is sent to prompt the user whether to turn on the eSIM card.

[0038] In some implementations, the control unit 240 may be an integrated circuit unit with general purpose input and output functions, such as a power management integrated circuit (PMIC) or the modem 220 .

[0039] The embodiment of the present application corresponds the SIM interface of the modem to multiple SIM card combinations respectively, so that the SIM cards in any SIM card combination can be connected to the SIM interface respectively to access the modem. The embodiment of the present application helps users to use any SIM cards with the same number of SIM interfaces to access the modem at the same time, solving the problem of limited usage scenarios, such as the problem that eSIM and any physical SIM card cannot be used at the same time.

[0040] The communication device of the user identification card of the embodiment of the application is further described below in conjunction with some possible implementation methods of the embodiment of the application.

[0041] An example is given in which the multiple subscriber identification cards include two physical SIM cards and one eSIM card, and the modem has two SIM interfaces. Figure 3 yes Figure 2 A schematic diagram of a possible implementation of a communication device. Figure 3 The embodiment of the present invention provides a hardware circuit and switching logic for a shared modem SIM card interface, so that the user can freely choose any two physical SIM cards and eSIM cards to use simultaneously. Figure 3 As shown, the communication device 300 of the subscriber identity card may include: a plurality of subscriber identity cards, a modem 320 , a switch unit 330 and a control unit 340 .

[0042] The multiple subscriber identification cards may include a first physical SIM card 311, a second physical SIM card 312, and an embedded subscriber identification card 313. The subscriber identification card may be a USIM card, a UICC card, etc. The first physical SIM card 311 and the second physical SIM card 312 may be placed on the same card tray (or card slot), and may be located at slot 1 and slot 2 of the card tray, respectively.

[0043] The modem 320 has two SIM interfaces. The SIM interfaces may be 7816 interfaces, and the two SIM interfaces may be respectively shown as 7816-1 interface and 7816-2 interface. The 7816 interface is an interface that complies with the ISO7816 protocol, and the ISO7816 protocol is a standardized contact smart card communication protocol.

[0044] like Figure 3 As shown, the switch unit 330 has two ports on the left side, which are respectively connected to the 7816-1 interface and the 7816-2 interface of the modem 320. The switch unit 330 has four ports on the right side, where port 1 is connected to the first physical SIM card 311, ports 2 and 3 are simultaneously connected to the second physical SIM card 312, and port 4 is connected to the eSIM card 313.

[0045] The switch unit 330 may include a first single-pole double-throw switch S1 and a second single-pole double-throw switch S2. S1 controls the 7816-1 interface to connect to the first physical SIM card 311 or the second physical SIM card 312, and S2 controls the 7816-2 interface to connect to the second physical SIM card 312 or the eSIM card 313. For example, the fixed end of the first single-pole double-throw switch S1 is connected to the 7816-1 interface, and the active end is connected to the first physical SIM card 311 and the second physical SIM card 312, respectively.

[0046] The control unit 340 may be an application processor, for example, a power management integrated circuit (PMIC) or a modem 320. The control unit 340 is connected to the switch unit 330, and is used to adjust the working state of the switch unit 330 according to the control signaling, so that any combination of two SIM cards is connected to the two SIM interfaces respectively. Table 1 is a truth table of the first single-pole double-throw switch S1 and the second single-pole double-throw switch S2.

[0047] Table 1 Truth table of switches S1 and S2

[0048] Switch S1 Switch S2 7816-1 Interface 7816-2 Interface 0 0 First physical SIM card Second physical SIM card 0 1 First physical SIM card eSIM 1 0 N / A N / A 1 1 Second physical SIM card eSIM

[0049] As shown in the truth table of Table 1, it should be understood that when S1=1, S2 cannot be 0, otherwise, SIM2 will be connected to the 7816-1 interface and the 7816-2 interface at the same time. Therefore, the control unit 340 is required to prevent this situation from occurring. The software restriction logic can be implemented in the following code:

[0050] #define S1 int;

[0051] #define S2 int;

[0052] if S1=1then

[0053] S2=1;

[0054] else();

[0055] The above SIM card interface usually includes 4 wires. The 4 wires are: VCC: SIM card power line; DATA: SIM card data line; RST: SIM card reset signal line; CLK: SIM card clock signal line. When the switch is switched, the above 4 wires are generally switched.

[0056] In some embodiments, if the SIM card includes a single wire protocol (SWP) signal line, when the switch is switched, the SWP signal line needs to be switched together. SWP refers to full-duplex communication based on voltage and load modulation principles on a signal line.

[0057] The first physical SIM card 311 and the second physical SIM card 312 can be placed on the same card tray. The communication device 300 of the user identification card may include a detection unit. When the SIM card is inserted or removed, when the detection unit detects that there is only one physical SIM card in the card tray (card slot) and the eSIM card has not turned on the communication network, a prompt message may pop up to prompt the user whether to turn on the eSIM card and connect the eSIM card to the communication network. For example, when the detection unit detects that only the second physical SIM card 312 is loaded in the card tray and the eSIM card 313 has not turned on the communication network, a first message is sent to prompt the user whether to turn on the eSIM card 313.

[0058] In the embodiment of the present application, when two physical SIM cards and an eSIM card coexist, a switch unit can be used to allow a user to use any two of the SIM cards without being restricted to choosing between an eSIM and a physical SIM card.

[0059] Figure 4 Schematic diagram of the structure of a terminal device provided in an embodiment of the present application. Figure 4 As shown, the terminal device 400 includes a communication device 410 of a user identification card as described in any of the above.

[0060] Figure 5 yes Figure 4 A schematic diagram of a possible operation interface of a terminal device. Figure 5As shown, in a dual physical SIM card and eSIM card system, a user can use any two SIM cards to access the communication network at the same time.

[0061] Combination of the above Figures 1 to 5 The device embodiment of the present application is described in detail. Figure 6 The method embodiment of the present application is described in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous device embodiment.

[0062] Figure 6 It is a flowchart of a method for controlling a SIM card provided in an embodiment of the present application. Figure 6 The method is applied to a communication device of a user identification card, and the communication device of the user identification card includes: multiple user identification cards SIM, including at least one embedded user identification card eSIM; a modem having at least 2 SIM interfaces, and the number of SIM interfaces is less than the number of multiple SIM cards; a switch unit, respectively connected to the at least 2 SIM interfaces and multiple SIM cards, the switch unit has multiple working states, and the multiple working states have a mapping relationship with multiple groups of SIM card combinations, and the SIM card combination is composed of SIM cards with any number of SIM interfaces in the multiple SIM cards; a control unit, connected to the switch unit. Figure 6 As shown, the method for controlling the SIM card may mainly include steps S610 to S620, which are described in detail below.

[0063] It should be pointed out that the size of the serial numbers of the steps in the embodiments of the present application does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0064] In step S610, a control signaling for instructing to connect to a target SIM card combination is received.

[0065] The target SIM card combination is a combination of SIM cards that are expected to be used simultaneously. For example, the target SIM card combination may be a combination of a physical SIM card and an eSIM card, or the target SIM card combination may be a combination of two physical SIM cards.

[0066] In step S620, the working state of the switch unit is adjusted according to the control signaling, so that the SIM cards in the target SIM card combination are respectively connected to the at least two SIM interfaces.

[0067] Optionally, the multiple SIM cards include a first physical SIM card and a second physical SIM card, the at least two SIM interfaces include a first SIM interface and a second SIM interface, and the mapping relationship between the multiple working states of the switch unit and the multiple groups of SIM card combinations may include: when the switch unit is in the first working state, the first physical SIM card and the first SIM interface are connected, and the second physical SIM card and the second SIM interface are connected; when the switch unit is in the second working state, the first physical SIM card and the first SIM interface are connected, and the eSIM card and the second SIM interface are connected; when the switch unit is in the third working state, the second physical SIM card and the first SIM interface are connected, and the eSIM card and the second SIM interface are connected.

[0068] Optionally, the switch unit includes: a first single-pole double-throw switch connected to the first SIM interface, the first physical SIM card and the second physical SIM card; a second single-pole double-throw switch connected to the second SIM interface, the second physical SIM card and the eSIM card.

[0069] Optionally, when the detection unit detects that the card tray is loaded with only one physical SIM card and the eSIM card has not enabled the communication network, a first message is sent, where the first message is used to prompt the user whether to enable the eSIM card.

[0070] Optionally, the control unit is a circuit with general input and output functions.

[0071] Optionally, the control unit may be a power management integrated circuit or a modem.

[0072] An embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored, and the computer program is used to execute any of the methods described above.

[0073] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present disclosure is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a machine-readable storage medium, or transmitted from one machine-readable storage medium to another machine-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The machine-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0074] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments of the present disclosure can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0075] In the several embodiments provided in the present disclosure, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0076] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0077] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0078] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A communication device for a user identification card, characterized in that: include: A plurality of subscriber identity cards SIM, including at least one embedded subscriber identity card eSIM; A modem having at least two SIM interfaces, wherein the number of the SIM interfaces is less than the number of the plurality of SIM cards; a switch unit, connected to the at least two SIM interfaces and the multiple SIM cards respectively, the switch unit having multiple working states, the multiple working states having a mapping relationship with multiple groups of SIM card combinations, the SIM card combination consisting of SIM cards of any number of SIM interfaces among the multiple SIM cards; The control unit is connected to the switch unit and is used to adjust the working state of the switch unit according to the control signaling so that the SIM cards in the target SIM card combination are respectively connected to the at least two SIM interfaces.

2. The communication device according to claim 1, characterized in that The multiple SIM cards include a first physical SIM card and a second physical SIM card, the at least two SIM interfaces include a first SIM interface and a second SIM interface, and the multiple working states have a mapping relationship with multiple groups of SIM combinations, including: When the switch unit is in the first working state, the first physical SIM card is connected to the first SIM interface, and the second physical SIM card is connected to the second SIM interface; When the switch unit is in the second working state, the first physical SIM card is connected to the first SIM interface, and the eSIM card is connected to the second SIM interface; When the switch unit is in the third working state, the second physical SIM card is connected to the first SIM interface, and the eSIM card is connected to the second SIM interface.

3. The communication device according to claim 2, characterized in that: The switch unit comprises: A first single-pole double-throw switch, connected to the first SIM interface, the first physical SIM card and the second physical SIM card; A second single-pole double-throw switch is connected to the second SIM interface, the second physical SIM card and the eSIM card.

4. The communication device according to claim 2, characterized in that: include: Card tray, used to hold the physical SIM card; a detection unit, connected to the card tray, and used to detect whether the physical SIM card is loaded in the card tray; The control unit is also used to perform the following operations: In response to the detection unit detecting that the card tray is loaded with only one physical SIM card and the eSIM card has not enabled the communication network, a first message is sent, where the first message is used to prompt the user whether to enable the eSIM card.

5. The communication device according to any one of claims 1 to 4, characterized in that: The control unit is a circuit with general input and output functions.

6. The communication device according to claim 5, characterized in that: The control unit is a power management integrated circuit or a modem.

7. A terminal device, characterized in that: A communication device comprising a user identification card as claimed in any one of claims 1 to 6.

8. A method for controlling a user identification card, characterized in that: A communication device applied to a user identification card, the communication device of the user identification card comprising: A plurality of subscriber identity cards SIM, including at least one embedded subscriber identity card eSIM; A modem having at least two SIM interfaces, wherein the number of the SIM interfaces is less than the number of the plurality of SIM cards; a switch unit, connected to the at least two SIM interfaces and the multiple SIM cards respectively, the switch unit having multiple working states, the multiple working states having a mapping relationship with multiple groups of SIM card combinations, the SIM card combination consisting of SIM cards of any number of SIM interfaces among the multiple SIM cards; A control unit connected to the switch unit; The method comprises: Receiving a control signaling for instructing to connect to a target SIM card combination; According to the control signaling, the working state of the switch unit is adjusted so that the SIM cards in the target SIM card combination are respectively connected to the at least two SIM interfaces.

9. The method according to claim 8, characterized in that Also includes: In response to detecting that the card tray of the communication device is loaded with only one physical SIM card and the eSIM card has not enabled the communication network, a first message is sent, wherein the first message is used to prompt the user whether to enable the eSIM card.

10. A non-volatile computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed, the computer program is used to implement the method according to any one of claims 8 to 9.

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