CN217824955U - Subscriber identity module switching circuit and electronic equipment - Google Patents
Subscriber identity module switching circuit and electronic equipment Download PDFInfo
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- CN217824955U CN217824955U CN202221839687.4U CN202221839687U CN217824955U CN 217824955 U CN217824955 U CN 217824955U CN 202221839687 U CN202221839687 U CN 202221839687U CN 217824955 U CN217824955 U CN 217824955U
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Abstract
The utility model relates to a subscriber identity module switching circuit and electronic equipment, the circuit includes: the SIM card comprises a processor, an eSIM card seat, at least one second SIM card seat and a switch component; the processor is provided with at least two SIM communication interfaces; each second SIM card is separately connected with one first SIM communication interface of the at least two SIM communication interfaces; the eSIM is connected with a first input interface of the switch component, the first SIM card seat is connected with a second input interface of the switch component, and an output interface of the switch component is connected with a second SIM communication interface of the at least two SIM communication interfaces; the controlled end of the switch assembly is connected with the control end of the processor and used for receiving a switch control signal sent by the control end; the switch component controls the connection of the eSIM and the SIM communication interface or controls the connection of the first SIM card holder and the SIM communication interface based on the switch control signal. The SIM access capability of terminals such as mobile phones and the like is improved, and the flexibility of selecting the SIM is improved.
Description
Technical Field
The utility model relates to an electronic equipment technical field especially relates to a Subscriber Identity Module (SIM) switching circuit and electronic equipment.
Background
SIMs (including USIMs) are subscriber identity cards used to uniquely identify mobile subscribers in a cellular mobile communication system. The cellular mobile communication system identifies the mobile subscriber by means of a SIM card. The mobile terminal can be identified by the network only by inserting the SIM, thereby completing network registration and realizing wireless communication. With the development of communication technology, a mobile terminal supports multiple SIMs from supporting one SIM, thereby implementing a multi-card multi-standby communication mode.
Disclosure of Invention
In view of this, the utility model provides a subscriber identity module switching circuit and electronic equipment.
According to the utility model discloses a first aspect provides a subscriber identity module SIM switching circuit, the circuit includes: a processor embedded with an embedded Subscriber Identity Module (eSIM), a first SIM card socket, at least one second SIM card socket, and a switch component; wherein the content of the first and second substances,
the processor is provided with at least two SIM communication interfaces;
each second SIM card is separately connected with one first SIM communication interface in the at least two SIM communication interfaces;
the eSIM is connected to a first input interface of the switch component, the first SIM card holder is connected to a second input interface of the switch component, and an output interface of the switch component is connected to a second SIM communication interface of the at least two SIM communication interfaces, where the first SIM communication interface is different from the second SIM communication interface;
the controlled end of the switch assembly is connected with the control end of the processor and used for receiving a switch control signal sent by the control end; the switch component controls the eSIM to be connected with the second SIM communication interface or controls the first SIM card holder to be connected with the second SIM communication interface based on the switch control signal.
In one embodiment, the first data bus interface of the eSIM and the first interrupt interface of the eSIM are connected with the first input interface of the switch component;
the second data bus interface of the first SIM card seat and the second interrupt interface of the first SIM card seat are connected with the first input interface of the switch component;
the output interface includes: a bus output interface and an interrupt output interface;
the second SIM communication interface includes an SIM bus communication interface and an SIM interrupt communication interface, wherein the bus output interface is connected to the SIM bus communication interface, and the interrupt output interface is connected to the SIM interrupt communication interface.
In one embodiment, the switch assembly comprises: a first sub-switch assembly and a second sub-switch assembly; the first sub-switch assembly and the second sub-switch assembly are respectively connected with the control end;
the first input interface, comprising:
the first bus input interface is positioned on the first sub-switch assembly and is used for connecting the first data bus interface;
the first interrupt input interface is positioned on the second sub-switch assembly and used for connecting the first interrupt interface;
the second input interface, comprising:
the second bus input interface is positioned on the first sub-switch assembly and is used for connecting the second data bus interface;
the second interrupt input interface is positioned on the second sub-switch assembly and is used for connecting the second interrupt interface;
the output interface includes:
the bus output interface is positioned on the first sub-switch assembly;
the interrupt output interface is located on the second sub-switch assembly.
In one embodiment, the first interrupt interface includes a general purpose input output interface GPIO of the processor.
In one embodiment, the processor is configured to send an interrupt signal of the eSIM through the GPIO according to the received reception control instruction.
In one embodiment, the processor is configured to transmit the switch control signal that controls connection of the eSIM with the second SIM communication interface prior to transmitting an interrupt signal for the eSIM.
According to a second aspect of the embodiments of the present invention, there is provided an electronic device, wherein the electronic device includes the subscriber identity module SIM switching circuit of the first aspect.
The embodiment of the utility model provides a subscriber identity module switching circuit and electronic equipment. The circuit comprises: the system comprises a processor, an eSIM, a first SIM card holder, at least one second SIM card holder and a switch component; wherein the processor has at least two SIM communication interfaces; each second SIM card is separately connected with one first SIM communication interface in the at least two SIM communication interfaces; the eSIM is connected to a first input interface of the switch component, the first SIM card holder is connected to a second input interface of the switch component, and an output interface of the switch component is connected to a second SIM communication interface of the at least two SIM communication interfaces, where the first SIM communication interface is different from the second SIM communication interface; the controlled end of the switch assembly is connected with the control end of the processor and used for receiving a switch control signal sent by the control end; the switch component controls the eSIM to be connected with the second SIM communication interface or controls the first SIM card holder to be connected with the second SIM communication interface based on the switch control signal. Therefore, the first SIM card seat or the eSIM is selected to be connected with the second SIM communication interface through the switch component controlled by the processor, and when the number of the SIM communication interfaces of the processor is less than the total number of the SIM card seats and the eSIM, the SIM card seats and the eSIM are supported, the SIM access capability of terminals such as mobile phones is improved, and the flexibility of selecting the SIM is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of embodiments of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a diagram of a related art SIM connection;
FIG. 2 is a block diagram illustrating an exemplary structure of a SIM switching circuit component, according to an exemplary embodiment;
FIG. 3 is a schematic block diagram of a SIM switching circuit component shown in accordance with an exemplary embodiment;
FIG. 4 is a schematic block diagram of a SIM switching circuit component shown in accordance with an exemplary embodiment;
FIG. 5 is a block diagram illustrating an exemplary structure of a SIM switching circuit component, according to an exemplary embodiment;
FIG. 6 is a block diagram illustrating an exemplary structure of a SIM switching circuit component, according to an exemplary embodiment;
FIG. 7 is a block diagram illustrating an exemplary structure of a SIM switching circuit component, according to an exemplary embodiment;
FIG. 8 is a schematic block diagram of a SIM switching circuit component shown in accordance with an exemplary embodiment;
FIG. 9 is a block diagram illustrating an exemplary structure of a SIM switching circuit component, according to an exemplary embodiment;
fig. 10 is a schematic diagram illustrating an electronic device component structure according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
As shown in fig. 1, a processor of a terminal such as a mobile phone may have two SIM communication interfaces, which are respectively connected to an SIM card socket to implement dual-card dual-standby.
However, the two SIM communication interfaces cannot support the case of having two SIM sockets and one eSIM at the same time.
Therefore, how to support the SIM card socket and the eSIM when the number of SIM communication interfaces of the processor is less than the total number of the SIM card socket and the eSIM is a problem to be solved urgently.
Fig. 2 is a block diagram illustrating a SIM switching circuit 100 in accordance with an exemplary embodiment. Referring to fig. 2, the sim switching circuit 100 includes, but is not limited to:
a processor 110, an esim 120, a first SIM socket 130, at least one second SIM socket 140, and a switch component 150; wherein, the first and the second end of the pipe are connected with each other,
the processor 110 having at least two SIM communication interfaces;
each second SIM card is separately connected with one first SIM communication interface of the at least two SIM communication interfaces;
the eSIM 120 is connected to a first input interface of the switch component 150, the first SIM socket 130 is connected to a second input interface of the switch component 150, and an output interface of the switch component 150 is connected to a second SIM communication interface of the at least two SIM communication interfaces, wherein the first SIM communication interface is different from the second SIM communication interface;
the controlled end of the switch component 150 is connected to the control end of the processor 110, and is configured to receive a switch control signal sent by the control end; the switch component 150 controls the eSIM 120 to interface with the second SIM communication interface or controls the first SIM socket 130 to interface with the second SIM communication interface based on the switch control signal.
The processor 110 may comprise a baseband processor of a terminal, such as a handset.
In one possible implementation, the eSIM 120 can be embedded in a chip with other functions, such as NFC, and soldered on a circuit board.
In one possible implementation, the first SIM card holder 130 and the second SIM card holder 140 may be of an integral design. I.e., first SIM card holder 130 and second SIM card holder 140 are in one physical card holder structure.
The first SIM card socket 130 and the second SIM card socket 140 may be the same socket or different sockets.
Here, the processor 110 may have a number of SIM communication interfaces that is less than the number of SIMs that need to be accessed. The SIM requiring access may include: a total number of first SIM card holder 130, second SIM card holder 140, and esims 120. The SIM communication interface of the processor 110 may include, but is not limited to, at least one of: SIM bus signal interface, SIM control signal interface, etc.
Therefore, the processor 110 cannot configure one SIM communication interface for each of the first SIM card socket 130, the second SIM card socket 140 and the eSIM 120.
Here, one second SIM communication interface of the processor 110 may be connected to the first SIM socket 130 and the eSIM 120 through the switch component 150.
In one possible implementation, the first SIM communication interface being different from the second SIM communication interface may include: the first SIM communication interface and the second SIM communication interface are located at different pin locations on the processor 110.
In one possible implementation, a first SIM communication interface and a second SIM communication interface of the at least two SIM communication interfaces may be interchanged. Which SIM communication interface of the at least two SIM communication interfaces is the first SIM communication interface, and which SIM communication interface is the second SIM communication interface is not limited herein. The switch component 150 may be a multi-channel switch, and the switch component 150 may selectively turn on the second SIM communication interface and the first SIM card socket 130 or turn on the second SIM communication interface and the eSIM 120 at the same time.
The switch component 150 may have a controlled terminal, and is connected to the control terminal of the processor 110, and the processor 110 controls the switch component 150 to selectively conduct the second SIM communication interface and the first SIM card holder 130, or conduct the second SIM communication interface and the eSIM 120.
Here, the eSIM 120 is connected to a first input interface of the switch component 150, the first SIM socket 130 is connected to a second input interface of the switch component 150, and an output interface of the switch component 150 is connected to a second SIM communication interface. The processor 110 can control the first input interface and the output interface to be conducted, so that the second SIM communication interface of the processor 110 is connected with the eSIM 120. Alternatively, the processor 110 may control the second input interface and the output interface to be conducted, so that the second SIM communication interface of the processor 110 is connected to the first SIM card socket 130.
In this way, the first SIM card socket 130 or the eSIM 120 is selected to be connected to the second SIM communication interface through the switch component 150 controlled by the processor, and when the number of SIM communication interfaces of the processor 110 is less than the total number of the SIM card sockets and the eSIM 120, the SIM card sockets and the eSIM 120 are supported, thereby improving the SIM access capability of terminals such as mobile phones and the like, and flexibility in selecting the SIM.
In one embodiment, as shown in fig. 3, the first data bus interface of the eSIM 120 and the first interrupt interface of the eSIM 120 are connected to the first input interface of the switch component 150;
the second data bus interface of the first SIM card socket 130 and the second interrupt interface of the first SIM card socket 130 are connected to the first input interface of the switch component 150;
the output interface includes: a bus output interface and an interrupt output interface;
the second SIM communication interface includes an SIM bus communication interface and an SIM interrupt communication interface, wherein the bus output interface is connected to the SIM bus communication interface, and the interrupt output interface is connected to the SIM interrupt communication interface.
Here, the second SIM communication interface may include a SIM bus communication interface, which may be connected with the data bus interface of the eSIM 120 or the first SIM card holder 130, for transmitting a data signal, and a SIM interrupt communication interface. The SIM interrupt communication interface is configured to interface with an interrupt interface of the eSIM 120 or the first SIM socket 130, and receive an interrupt signal of the eSIM 120 or the first SIM socket 130.
The data bus interface of the eSIM 120 or the first SIM card holder 130 may have different signal lines for transmission that may include at least one of: a (clock) CLK signal, a (reset) RST signal, and an input/output (IO) signal.
The interrupt interface of the eSIM 120 or the first SIM card holder 130 is used to transmit an interrupt signal.
In one possible implementation, the interrupt signal is used to indicate to the processor 110 that the SIM requires the processor 110 to handle an interrupt event for the SIM. The interrupt events may include: SIM insertion, activating SIM, etc.
A first data bus interface of the eSIM 120, configured to carry a first data bus; a second data bus interface of the first SIM card socket 130, configured to carry a second data bus; the first data bus and the second data bus are selected by the switch component 150 to be used as the SIM bus to access the SIM bus communication interface. Enabling processor 110 selection of eSIM 120 and first SIM card socket 130 buses
A first interrupt interface of the eSIM 120, configured to carry a first interrupt; a second interrupt interface of the first SIM card holder 130, configured to carry a second interrupt; the first interrupt and the second terminal, through selection by the switch component 150, access the SIM bus communication interface as the SIM bus.
In one embodiment, as shown in fig. 4, the first interrupt interface includes a general purpose input/output interface GPIO of the processor 110.
Since the eSIM 120 is embedded in the terminal board by soldering or the like, a terminal cannot be generated when the SIM is inserted, as in the SIM card socket. Here, the GPIO of the processor 110 may be used as a first interrupt interface of the eSIM 120, and an interrupt signal of the eSIM 120 may be transmitted to a SIM interrupt communication interface of the processor 110.
In one embodiment, the processor 110 is configured to send an interrupt signal of the eSIM 120 through the GPIO according to the received reception control instruction.
The control instructions may be triggered by the processor 110 based on upper layer applications, etc.
Illustratively, the user may select to use the eSIM 120 or the first SIM socket 130 through the operation interface. When used to select the eSIM 120, the upper layer application may trigger the GPIO to transmit an interrupt signal of the eSIM 120 to the transmitting SIM interrupt communication interface, and the processor 110 may operate based on the interrupt signal of the eSIM 120.
Here, the SIM interrupt communication interface may also be a GPIO implementation with the processor 110. The SIM interrupt communication interface and the GPIO as the first interrupt interface may be different GPIOs.
In one embodiment, the processor 110 is configured to transmit the switch control signal that controls the eSIM 120 to be connected to the second SIM communication interface before transmitting the interrupt signal of the eSIM 120.
In order to ensure that the second SIM communication interface can receive the interrupt signal during the switching to the eSIM 120, the first interrupt interface (GPIO of the processor 110) and the second SIM communication interface (SIM interrupt communication interface) need to be turned on before the interrupt signal of the eSIM 120 is transmitted. Accordingly, the processor 110 needs to transmit a switch control signal to control the switch component 150 to connect the eSIM 120 with the second SIM communication interface before transmitting the interrupt signal of the eSIM 120.
A timing diagram during switching to eSIM 120 is shown in fig. 5. The switch control signal is first pulled high to connect the eSIM 120 with the second SIM communication interface, then the first interrupt interface sends out the first termination signal, and finally the data bus of the eSIM 120 starts to transmit data. Here, the high level or the low level at which the switch control signal switches the eSIM 120 or the first SIM socket 130 may be preset. In fig. 5, the switch control signal is pulled high to switch to the eSIM 120.
Similarly, in the process of switching from the eSIM 120 to the first SIM socket 130, the processor 110 needs to first transmit a switch control signal to control the switch component 150 to connect the first SIM socket 130 with the second SIM communication interface. A timing diagram during switching to the first SIM card holder 130 is shown in fig. 6. Here, the high level or the low level at which the switch control signal switches the eSIM 120 or the first SIM socket 130 may be preset. In fig. 6, the switching to the first SIM card holder 130 is performed by pulling the switch control signal high.
In one embodiment, as shown in fig. 7, the switch assembly 150 includes: a first sub-switch assembly 150 and a second sub-switch assembly 150; wherein, the first sub-switch assembly 150 and the second sub-switch assembly 150 are respectively connected to the control terminal;
the first input interface, comprising:
a first bus input interface located at the first sub-switch assembly 151 for connecting to the first data bus interface;
a first interrupt input interface located on the second sub-switch assembly 150, for connecting the first interrupt interface;
the second input interface, comprising:
a second bus input interface located in the first sub-switch assembly 151, configured to connect to the second data bus interface;
a second interrupt input interface located in the second sub-switch assembly 150, configured to connect to the second interrupt interface;
the output interface includes:
the bus output interface located at the first sub-switch assembly 151;
the interrupt output interface at the second sub-switch assembly 152.
Here, the switching assembly 150 may include a first sub-switching assembly 151 and a second sub-switching assembly 152. A first sub-switch component 151, which can be used to switch the first data bus interface and the second data bus interface; a second sub-switch assembly 152 that may be used to switch the first interrupt interface and the second interrupt interface;
the first sub-switch assembly 151 and the second sub-switch assembly 152 may be two discrete electronic devices.
For example, the first sub-switch assembly 151 may be a multi-channel switch, which may be used for switching a plurality of signal lines in a data bus. The second sub-switch component 152 may be a one-way alternative switch, and may be used for switching of a single interrupt signal line.
In practical applications, when the switch control signal selects the first SIM card socket 130 to connect with the second SIM communication interface, the conducting lines are shown by black filled arrows in fig. 8. The processor 110 accesses a network using a SIM card in the first SIM card holder 130.
When the switch control signal selects the eSIM 120 to connect with the second SIM communication interface, the conductive lines are as indicated by the black filled arrows in fig. 9. The processor 110 accesses the network using a SIM card in the eSIM 120.
Fig. 10 is a block diagram illustrating an electronic device 10 according to an exemplary embodiment, wherein the electronic device 10 includes the SIM switching circuit 100 shown in fig. 2, and referring to fig. 2, the SIM switching circuit 100 includes, but is not limited to:
a processor 110, an esim 120, a first SIM socket 130, at least one second SIM socket 140, and a switch component 150; wherein, the first and the second end of the pipe are connected with each other,
the processor 110 having at least two SIM communication interfaces;
each second SIM card is separately connected with one first SIM communication interface of the at least two SIM communication interfaces;
the eSIM 120 is connected to a first input interface of the switch component 150, the first SIM socket 130 is connected to a second input interface of the switch component 150, and an output interface of the switch component 150 is connected to a second SIM communication interface of the at least two SIM communication interfaces, wherein the first SIM communication interface is different from the second SIM communication interface;
the controlled end of the switch component 150 is connected to the control end of the processor 110, and is configured to receive a switch control signal sent by the control end; the switch component 150 controls the eSIM 120 to interface with the second SIM communication interface or controls the first SIM socket 130 to interface with the second SIM communication interface based on the switch control signal.
The electronic device 100 includes, but is not limited to, a terminal such as a handset based on a SIM access network. Here, the SIM includes: esims, SIM cards, and the like.
The processor 110 may comprise a baseband processor of a terminal, such as a handset.
In one possible implementation, the eSIM 120 may be embedded in a chip with other functions, such as NFC, and soldered to a circuit board.
In one possible implementation, the first SIM card holder 130 and the second SIM card holder 140 may be of an integral design. I.e., first SIM card holder 130 and second SIM card holder 140 are in one physical card holder structure.
The first SIM card socket 130 and the second SIM card socket 140 may be the same socket or different sockets.
Here, the processor 110 may have a number of SIM communication interfaces that is less than the number of SIMs that need to be accessed. The SIM requiring access may include: a total number of first SIM card holder 130, second SIM card holder 140, and esims 120. The SIM communication interface of the processor 110 may include, but is not limited to, at least one of: SIM bus signal interface, SIM control signal interface, etc.
Therefore, the processor 110 cannot configure one SIM communication interface for each of the first SIM socket 130, the second SIM socket 140 and the eSIM 120.
Here, one second SIM communication interface of the processor 110 may be connected to the first SIM socket 130 and the eSIM 120 through the switch component 150.
In one possible implementation, the first SIM communication interface being different from the second SIM communication interface may include: the first SIM communication interface and the second SIM communication interface are located at different pin locations on the processor 110.
In one possible implementation, a first SIM communication interface and a second SIM communication interface of the at least two SIM communication interfaces may be interchanged. Which SIM communication interface of the at least two SIM communication interfaces is the first SIM communication interface, and which SIM communication interface is the second SIM communication interface is not limited herein. The switch component 150 may be a multi-channel switch, and the switch component 150 may selectively turn on the second SIM communication interface and the first SIM card socket 130, or turn on the second SIM communication interface and the eSIM 120 at the same time.
The switch component 150 may have a controlled terminal, and is connected to the control terminal of the processor 110, and the processor 110 controls the switch component 150 to selectively conduct the second SIM communication interface and the first SIM card holder 130, or conduct the second SIM communication interface and the eSIM 120.
Here, the eSIM 120 is connected to a first input interface of the switch component 150, the first SIM socket 130 is connected to a second input interface of the switch component 150, and an output interface of the switch component 150 is connected to a second SIM communication interface. The processor 110 can control the first input interface and the output interface to be conductive, so that the second SIM communication interface of the processor 110 is connected with the eSIM 120. Alternatively, the processor 110 may control the second input interface and the output interface to be conducted, so that the second SIM communication interface of the processor 110 is connected to the first SIM card socket 130.
In this way, the processor-controlled switch component 150 selects the first SIM card socket 130 or the eSIM 120 to connect with the second SIM communication interface, and when the number of SIM communication interfaces of the processor 110 is less than the total number of SIM card sockets and esims 120, the SIM card sockets and esims 120 are supported, so that the SIM access capability of the terminal, such as a mobile phone, is improved, and the flexibility of SIM selection is improved.
In one embodiment, as shown in fig. 3, the first data bus interface of the eSIM 120 and the first interrupt interface of the eSIM 120 are connected to the first input interface of the switch component 150;
the second data bus interface of the first SIM card socket 130 and the second interrupt interface of the first SIM card socket 130 are connected to the first input interface of the switch component 150;
the output interface includes: a bus output interface and an interrupt output interface;
the second SIM communication interface includes an SIM bus communication interface and an SIM interrupt communication interface, wherein the bus output interface is connected to the SIM bus communication interface, and the interrupt output interface is connected to the SIM interrupt communication interface.
Here, the second SIM communication interface may include a SIM bus communication interface, which may be connected with a data bus interface of the eSIM 120 or the first SIM socket 130, for transmitting data signals, and a SIM interrupt communication interface. The SIM interrupt communication interface is configured to interface with an interrupt interface of the eSIM 120 or the first SIM socket 130, and receive an interrupt signal of the eSIM 120 or the first SIM socket 130.
The data bus interface of the eSIM 120 or the first SIM card holder 130 may have different signal lines for transmission that may include at least one of: a (clock) CLK signal, a (reset) RST signal, and an input/output (IO) signal.
The interrupt interface of the eSIM 120 or the first SIM card holder 130 is used to transmit an interrupt signal.
In one possible implementation, the interrupt signal is used to indicate to the processor 110 that the SIM requires the processor 110 to handle an interrupt event for the SIM. The interrupt events may include: SIM insertion, activating SIM, etc.
A first data bus interface of the eSIM 120, configured to carry a first data bus; a second data bus interface of the first SIM card holder 130, configured to carry a second data bus; the first data bus and the second data bus are selected by the switch component 150 to be used as the SIM bus to access the SIM bus communication interface. Enabling processor 110 selection of eSIM 120 and first SIM card socket 130 buses
A first interrupt interface of the eSIM 120, configured to carry a first interrupt; a second interrupt interface of the first SIM card holder 130, configured to carry a second interrupt; the first interrupt and the second terminal, through selection by the switch component 150, access the SIM bus communication interface as the SIM bus.
In one embodiment, as shown in fig. 4, the first interrupt interface includes a general purpose input/output interface GPIO of the processor 110.
Since the eSIM 120 is embedded in the terminal board by soldering or the like, a terminal cannot be generated when the SIM is inserted, as in the SIM card socket. Here, a GPIO of the processor 110 may be used as a first interrupt interface of the eSIM 120, and an interrupt signal of the eSIM 120 may be transmitted to a SIM interrupt communication interface of the processor 110.
In one embodiment, the processor 110 is configured to send an interrupt signal of the eSIM 120 through the GPIO according to the received reception control instruction.
The control instructions may be triggered by the processor 110 based on upper layer applications, etc.
Illustratively, the user may select to use the eSIM 120 or the first SIM socket 130 through the operation interface. When used to select the eSIM 120, the upper layer application may trigger the GPIO to transmit an interrupt signal of the eSIM 120 to the transmitting SIM interrupt communication interface, and the processor 110 may operate based on the interrupt signal of the eSIM 120.
Here, the SIM interrupt communication interface may also be a GPIO implementation with the processor 110. The SIM interrupt communication interface and the GPIO as the first interrupt interface may be different GPIOs.
In one embodiment, the processor 110 is configured to transmit the switch control signal that controls the eSIM 120 to be connected to the second SIM communication interface before transmitting the interrupt signal of the eSIM 120.
In order to ensure that the second SIM communication interface can receive the interrupt signal during the switching to the eSIM 120, the first interrupt interface (GPIO of the processor 110) and the second SIM communication interface (SIM interrupt communication interface) need to be turned on before the interrupt signal of the eSIM 120 is transmitted. Therefore, the processor 110 needs to transmit a switch control signal to control the switch component 150 to connect the eSIM 120 with the second SIM communication interface before transmitting the interrupt signal of the eSIM 120.
A timing diagram during switching to eSIM 120 is shown in fig. 5. The switch control signal is first pulled high to connect the eSIM 120 with the second SIM communication interface, then the first interrupt interface sends out the first termination signal, and finally the data bus of the eSIM 120 starts to transmit data. Here, the high level or the low level at which the switch control signal switches the eSIM 120 or the first SIM socket 130 may be preset. In fig. 5, the switch control signal is pulled high to switch to the eSIM 120.
Similarly, in the process of switching from the eSIM 120 to the first SIM card holder 130, the processor 110 needs to first send a switch control signal to control the switch component 150 to connect the first SIM card holder 130 with the second SIM communication interface. A timing diagram during switching to the first SIM card holder 130 is shown in fig. 6. Here, the high level or the low level at which the switch control signal switches the eSIM 120 or the first SIM socket 130 may be preset. In fig. 6, the switching to the first SIM card holder 130 is performed by pulling the switch control signal high.
In one embodiment, as shown in fig. 7, the switch assembly 150 includes: a first sub-switch assembly 150 and a second sub-switch assembly 150; wherein, the first sub-switch assembly 150 and the second sub-switch assembly 150 are respectively connected to the control terminal;
the first input interface, comprising:
a first bus input interface located at the first sub-switch assembly 151, for connecting to the first data bus interface;
a first interrupt input interface located on the second sub-switch assembly 150, for connecting the first interrupt interface;
the second input interface, comprising:
a second bus input interface located in the first sub-switch assembly 151, configured to connect to the second data bus interface;
a second interrupt input interface located in the second sub-switch assembly 150, configured to connect to the second interrupt interface;
the output interface includes:
the bus output interface at the first sub-switch assembly 151;
the interrupt output interface at the second sub-switch assembly 152.
Here, the switching assembly 150 may include a first sub-switching assembly 151 and a second sub-switching assembly 152. A first sub-switch component 151, which can be used to switch the first data bus interface and the second data bus interface; a second sub-switch assembly 152 that may be used to switch the first interrupt interface and the second interrupt interface;
the first sub-switch assembly 151 and the second sub-switch assembly 152 may be two discrete electronic devices.
For example, the first sub-switch assembly 151 may be a multi-channel switch, which may be used for switching a plurality of signal lines in a data bus. The second sub-switch component 152 may be a one-way alternative switch, and may be used for switching of a single interrupt signal line.
In practical applications, when the switch control signal selects the first SIM card socket 130 to connect with the SIM communication interface, the conducting lines are as shown by the black filled arrows in fig. 8. The processor 110 accesses a network using a SIM card in the first SIM card holder 130.
When the switch control signal selects the eSIM 120 to connect with the second SIM communication interface, the conductive lines are as indicated by the black filled arrows in fig. 9. The processor 110 accesses the network using a SIM card in the eSIM 120.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. Subscriber identity module, SIM, switching circuitry, the circuitry comprising: the SIM card comprises a processor, a first SIM card seat, at least one second SIM card seat and a switch component, wherein the processor is embedded in an eSIM; wherein, the first and the second end of the pipe are connected with each other,
the processor is provided with at least two SIM communication interfaces;
each second SIM card is separately connected with one first SIM communication interface of the at least two SIM communication interfaces;
the eSIM is connected to a first input interface of the switch component, the first SIM card holder is connected to a second input interface of the switch component, and an output interface of the switch component is connected to a second SIM communication interface of the at least two SIM communication interfaces, where the first SIM communication interface is different from the second SIM communication interface;
the controlled end of the switch component is connected with the control end of the processor and is used for receiving a switch control signal sent by the control end; the switch component controls the eSIM to be connected with the second SIM communication interface or controls the first SIM card holder to be connected with the second SIM communication interface based on the switch control signal.
2. The circuit of claim 1,
a first data bus interface of the eSIM and a first interrupt interface of the eSIM connected to a first input interface of the switch component;
the second data bus interface of the first SIM card seat and the second interrupt interface of the first SIM card seat are connected with the first input interface of the switch component;
the output interface includes: a bus output interface and an interrupt output interface;
the second SIM communication interface includes an SIM bus communication interface and an SIM interrupt communication interface, wherein the bus output interface is connected to the SIM bus communication interface, and the interrupt output interface is connected to the SIM interrupt communication interface.
3. The circuit of claim 2, wherein the switching assembly comprises: a first sub-switch assembly and a second sub-switch assembly; the first sub-switch assembly and the second sub-switch assembly are respectively connected with the control end;
the first input interface, comprising:
the first bus input interface is positioned on the first sub-switch assembly and is used for connecting the first data bus interface;
the first interrupt input interface is positioned on the second sub-switch assembly and used for connecting the first interrupt interface;
the second input interface, comprising:
the second bus input interface is positioned on the first sub-switch assembly and is used for connecting the second data bus interface;
the second interrupt input interface is positioned on the second sub-switch assembly and is used for connecting the second interrupt interface;
the output interface includes:
the bus output interface is positioned on the first sub-switch assembly;
the interrupt output interface is located on the second sub-switch assembly.
4. A circuit according to claim 2 or 3, characterized in that the first interrupt interface comprises a general purpose input output interface GPIO of the processor.
5. The circuit of claim 4, wherein,
and the processor is used for sending an interrupt signal of the eSIM through the GPIO according to the received receiving control instruction.
6. The circuit of claim 5,
the processor is configured to send the switch control signal that controls connection of the eSIM with the second SIM communication interface before sending an interrupt signal of the eSIM.
7. An electronic device, characterized in that the electronic device comprises: subscriber identity module, SIM, switching circuitry as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221839687.4U CN217824955U (en) | 2022-07-15 | 2022-07-15 | Subscriber identity module switching circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221839687.4U CN217824955U (en) | 2022-07-15 | 2022-07-15 | Subscriber identity module switching circuit and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN217824955U true CN217824955U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221839687.4U Active CN217824955U (en) | 2022-07-15 | 2022-07-15 | Subscriber identity module switching circuit and electronic equipment |
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| Country | Link |
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| CN (1) | CN217824955U (en) |
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