CN111556542A

CN111556542A - SIM card switching circuit, SIM card switching method and terminal equipment

Info

Publication number: CN111556542A
Application number: CN202010567821.9A
Authority: CN
Inventors: 吕贵珣; 陈义涛; 吕骏义; 顾方文; 邱汉安; 高翔
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-08-18
Anticipated expiration: 2040-06-19
Also published as: CN111556542B

Abstract

The embodiment of the application provides an SIM card switching circuit, an SIM card switching method and a terminal device, wherein the SIM card switching circuit comprises a baseband processor, a first SIM card seat, a second SIM card seat and a third SIM card seat, the baseband processor comprises a first control interface and a second control interface, wherein: the first SIM card socket, or the second SIM card socket, or the third SIM card socket is connected to the first control interface; the first SIM card socket, or the second SIM card socket, or the third SIM card socket is connected to the second control interface; the SIM card holder connected with the first control interface is different from the SIM card holder connected with the second control interface. According to the scheme provided by the embodiment of the application, the user does not need to open the rear cover of the mobile phone for replacement, and the operation is simple and convenient.

Description

SIM card switching circuit, SIM card switching method and terminal equipment

Technical Field

The embodiment of the application relates to the technical field of communication, and in particular relates to an SIM card switching circuit, an SIM card switching method and terminal equipment.

Background

The mobile phone is a commonly used communication tool for human, and after a Subscriber Identity Module (SIM) card is installed in the mobile phone, the mobile phone can enjoy services provided by an operator, including talking with others, surfing the internet using data traffic, and the like.

Currently, one or two SIM card holders are usually disposed inside a mobile phone, and the corresponding types of mobile phones respectively include a single-card single-standby mobile phone, a dual-card single-band mobile phone, and a dual-card dual-standby mobile phone. In the current mobile phone, only dual-card dual-standby can be realized, and if a user has 3 SIM cards, only two SIM cards can be installed in the mobile phone each time. If the SIM card needs to be switched, the back cover of the mobile phone needs to be opened to replace the SIM card, and the operation is troublesome.

Disclosure of Invention

The embodiment of the application provides an SIM card switching circuit, an SIM card switching method and terminal equipment, and aims to solve the problem that the current SIM card switching operation is relatively troublesome.

In a first aspect, an embodiment of the present application provides a subscriber identity module SIM card switching circuit, including a baseband processor, a first SIM card socket, a second SIM card socket, and a third SIM card socket, where the baseband processor includes a first control interface and a second control interface, where:

the first SIM card socket, or the second SIM card socket, or the third SIM card socket is connected to the first control interface;

the first SIM card socket, or the second SIM card socket, or the third SIM card socket is connected to the second control interface;

the SIM card holder connected with the first control interface is different from the SIM card holder connected with the second control interface.

In one possible implementation, the baseband processor is configured to:

controlling the first SIM card socket to be connected with the first control interface, or controlling the second SIM card socket to be connected with the first control interface, or controlling the third SIM card socket to be connected with the second control interface;

controlling the first SIM card seat to be connected with the second control interface, or controlling the second SIM card seat to be connected with the second control interface, or controlling the third SIM card seat to be connected with the second control interface.

In a possible implementation, the baseband processor is specifically configured to:

receiving a switching instruction;

and switching the SIM card seat connected with the first control interface and/or switching the SIM card seat connected with the second control interface according to the switching instruction.

receiving an SIM card seat identification;

according to the SIM card seat identification, connecting the SIM card seat corresponding to the SIM card seat identification with the first control interface, or connecting the SIM card seat corresponding to the SIM card seat identification with the second control interface.

In one possible implementation, the baseband processor further includes a third control interface and a fourth control interface, wherein:

the baseband processor controls the first SIM card holder to be connected with the first control interface through the third control interface, or controls the second SIM card holder to be connected with the first control interface, or controls the third SIM card holder to be connected with the first control interface;

the baseband processor controls the first SIM card holder to be connected with the second control interface through the fourth control interface, or controls the second SIM card holder to be connected with the second control interface, or controls the third SIM card holder to be connected with the second control interface.

In one possible embodiment, the SIM card switching circuit further comprises a first single pole, triple throw switch and a second single pole, triple throw switch, wherein;

one end of the first single-pole-three-throw switch is connected with the first control interface and the third control interface respectively, and the other end of the first single-pole-three-throw switch is connected with the first SIM card holder, the second SIM card holder or the third SIM card holder;

one end of the second single-pole-three-throw switch is connected with the second control interface and the fourth control interface respectively, and the other end of the second single-pole-three-throw switch is connected with the first SIM card holder, or the second SIM card holder, or the third SIM card holder.

In a possible implementation manner, before receiving the switching instruction, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; the switching instruction is used for indicating the SIM card seat connected with the first control interface to be switched; the baseband processor is specifically configured to:

receiving the switching instruction;

controlling the first control interface to be connected with the second SIM card seat according to the switching instruction; alternatively, the first and second electrodes may be,

and controlling the first control interface to be connected with the third SIM card seat according to the switching instruction.

In a possible implementation manner, if the switching instruction is used to instruct the first control interface to connect to the second SIM socket, the baseband processor is further configured to, before controlling the first control interface to connect to the second SIM socket according to the switching instruction:

and controlling the second control interface to be connected with the third SIM card seat.

In a possible implementation manner, before receiving the switching instruction, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; the switching instruction is used for indicating to switch the SIM card seat connected with the second control interface; the baseband processor is specifically configured to:

receiving the switching instruction;

controlling the second control interface to be connected with the first SIM card seat according to the switching instruction; alternatively, the first and second electrodes may be,

and controlling the second control interface to be connected with the third SIM card seat according to the switching instruction.

In a possible implementation manner, if the switching instruction is used to instruct the second control interface to connect to the first SIM socket, the baseband processor is further configured to, before controlling the second control interface to connect to the first SIM socket according to the switching instruction:

and controlling the first control interface to be connected with the third SIM card holder.

In one possible embodiment, the SIM card holder identifies a SIM card holder for indicating a first control interface connection; the baseband processor is specifically configured to:

receiving the SIM card seat identification;

when the SIM card seat identification indicates the first SIM card seat, controlling the first control interface to be connected with the first SIM card seat;

when the SIM card seat identification indicates the second SIM card seat, controlling the first control interface to be connected with the second SIM card seat;

and when the SIM card seat identification indicates the third SIM card seat, controlling the first control interface to be connected with the third SIM card seat.

In a possible implementation manner, before receiving the SIM card socket identifier, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; if the SIM card socket identifier indicates the second SIM card socket, the baseband processor is further configured to, before controlling the first control interface to connect to the second SIM card socket:

In a possible embodiment, the SIM card holder identifies a SIM card holder for indicating a second control interface connection; the baseband processor is specifically configured to:

receiving the SIM card seat identification;

when the SIM card seat identification indicates the first SIM card seat, controlling the second control interface to be connected with the first SIM card seat;

when the SIM card seat identification indicates the second SIM card seat, controlling the second control interface to be connected with the second SIM card seat;

and when the SIM card seat identification indicates the third SIM card seat, controlling the second control interface to be connected with the third SIM card seat.

In a possible implementation manner, before receiving the SIM card socket identifier, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; if the SIM card socket identifier indicates the first SIM card socket, the baseband processor is further configured to, before controlling the second control interface to connect to the first SIM card socket:

In one possible implementation, the baseband processor is a 4G chip.

In a second aspect, an embodiment of the present application provides an SIM card switching method, which is applied to a baseband processor in an SIM card switching circuit, where the SIM card switching circuit further includes a first SIM card socket, a second SIM card socket, and a third SIM card socket, and the baseband processor includes a first control interface and a second control interface, and the method includes:

controlling the first SIM card holder, or the second SIM card holder, or the third SIM card holder to be connected with the first control interface;

controlling the first SIM card holder, or the second SIM card holder, or the third SIM card holder to connect with the second control interface;

In one possible implementation, the baseband processor further comprises a third control interface and a fourth control interface; the controlling the first SIM card socket, or the second SIM card socket, or the third SIM card socket, connected to the first control interface includes:

controlling the first SIM card holder to be connected with the first control interface through the third control interface, or controlling the second SIM card holder to be connected with the first control interface, or controlling the third SIM card holder to be connected with the first control interface;

the controlling the first SIM card socket, or the second SIM card socket, or the third SIM card socket, connected to the second control interface includes:

and controlling the first SIM card seat to be connected with the second control interface through the fourth control interface, or controlling the second SIM card seat to be connected with the second control interface, or controlling the third SIM card seat to be connected with the second control interface.

In one possible embodiment, the method further comprises:

receiving a switching instruction;

In one possible embodiment, the method further comprises:

receiving an SIM card seat identification;

In a possible implementation manner, before receiving the switching instruction, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; the switching the SIM card socket connected to the first control interface and/or the switching the SIM card socket connected to the second control interface according to the switching instruction includes:

In a possible implementation manner, if the switching instruction is used to instruct the first control interface to connect to the second SIM card socket, before controlling the first control interface to connect to the second SIM card socket according to the switching instruction, the method further includes:

In a possible implementation manner, if the switching instruction is used to instruct the second control interface to connect to the first SIM socket, before controlling the second control interface to connect to the first SIM socket according to the switching instruction, the method further includes:

In one possible embodiment, the SIM card holder identifies a SIM card holder for indicating a first control interface connection; the connecting the SIM card socket corresponding to the SIM card socket identifier with the first control interface or connecting the SIM card socket corresponding to the SIM card socket identifier with the second control interface according to the SIM card socket identifier includes:

In a possible implementation manner, before receiving the SIM card socket identifier, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; if the SIM card socket identifier indicates the second SIM card socket, before controlling the first control interface to connect to the second SIM card socket, the method further includes:

In a possible embodiment, the SIM card holder identifies a SIM card holder for indicating a second control interface connection; the connecting the SIM card socket corresponding to the SIM card socket identifier with the first control interface or connecting the SIM card socket corresponding to the SIM card socket identifier with the second control interface according to the SIM card socket identifier includes:

In a possible implementation manner, before receiving the SIM card socket identifier, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; if the SIM card socket identifier indicates the first SIM card socket, before controlling the second control interface to connect to the first SIM card socket, the method further includes:

In one possible implementation, the baseband processor is a 4G chip.

In a third aspect, an embodiment of the present application provides a terminal device, including the SIM card switching circuit according to any one of the first aspects.

The SIM card switching circuit, the SIM card switching method and the terminal device provided in the embodiment of the present application include a baseband processor, a first SIM card holder, a second SIM card holder and a third SIM card holder in the SIM card switching circuit, where the baseband processor includes a first control interface and a second control interface, and the first SIM card holder, or the second SIM card holder, or the third SIM card holder is connected to the first control interface, so that the SIM card holder connected to the first control interface can be switched among the first SIM card holder, the second SIM card holder and the third SIM card holder; the first SIM card seat, or the second SIM card seat, or the third SIM card seat is connected with the second control interface, so that the SIM card seat connected with the second control interface can be switched among the first SIM card seat, the second SIM card seat and the third SIM card seat; the SIM card seat connected with the first control interface is different from the SIM card seat connected with the second control interface. The scheme that this application embodiment provided can realize the switching of SIM card through switching the SIM cassette of first control interface connection or switching the SIM cassette of second control interface connection, when carrying out the switching of SIM card, the SIM card still is in original SIM cassette, need not that the user opens lid behind the cell-phone and changes, and is easy and simple to handle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a SIM card switching circuit according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a SIM card switching circuit according to another embodiment of the present application;

fig. 4 is a first SIM card switching interface diagram provided in the embodiment of the present application;

fig. 5 is a first schematic diagram illustrating SIM card switching according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating a variation of a SIM card switching circuit according to an embodiment of the present application;

fig. 7 is a second SIM card switching interface diagram provided in the embodiment of the present application;

fig. 8 is a second schematic diagram of SIM card switching provided in the embodiment of the present application;

fig. 9 is a schematic flowchart of a SIM card switching method according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application, as shown in fig. 1, including a mobile phone 10, where two SIM card sockets, namely a first SIM card socket 101 and a second SIM card socket 102, are arranged in the mobile phone 10. The user has 3 SIM cards, SIM card 1, SIM card 2 and SIM card 3.

At this time, in the mobile phone 10, the SIM card 1 is installed in the first SIM card socket 101, the SIM card 2 is installed in the second SIM card socket 102, and the mobile phone 10 realizes dual-card dual-standby.

If the user wants to install the SIM card 3 in the first SIM card socket 101 or the second SIM card socket 102, the back cover of the mobile phone 10 needs to be opened, and the SIM card 3 is installed in the first SIM card socket 101 after the SIM card 1 is removed, or the SIM card 3 is installed in the second SIM card socket 102 after the SIM card 2 is removed. In this operation mode, when the SIM card needs to be switched each time, the back cover of the mobile phone 10 needs to be opened, and the operation is very inconvenient because of frequent disassembly and assembly.

In order to solve the problem, the embodiment of the application provides a SIM card switching scheme, which can implement convenient switching of SIM cards without detaching a mobile phone. The scheme of the present application will be explained below with reference to the accompanying drawings.

Fig. 2 is a schematic structural diagram of a SIM card switching circuit provided in this embodiment, as shown in fig. 2, including a baseband processor 20, a first SIM card socket 21, a second SIM card socket 22, and a third SIM card socket 23, where the baseband processor 20 includes a first control interface 201 and a second control interface 202, where:

the first SIM card socket 21, the second SIM card socket 22, or the third SIM card socket 23 is connected to the first control interface 201;

the first SIM card socket 21, the second SIM card socket 22, or the third SIM card socket 23 is connected to the second control interface 202;

the SIM card socket connected to the first control interface 201 is different from the SIM card socket connected to the second control interface 202.

In the example of fig. 2, the baseband processor 20 includes a first control interface 201 and a second control interface 202 thereon, and the SIM card holder may be connected to the baseband processor 20 by connecting with the first control interface 201 or the second control interface 202.

In the SIM card switching circuit, the SIM card socket connected to the first control interface 201 may be the first SIM card socket 21, the second SIM card socket 22, or the third SIM card socket 23, that is, the first control interface 201 may be switched among the first SIM card socket 21, the second SIM card socket 22, and the third SIM card socket 23. When the first control interface 201 is connected to the first SIM card holder 21, the SIM card installed in the first SIM card holder 21 is in a standby state, when the first control interface 201 is connected to the second SIM card holder 22, the SIM card installed in the second SIM card holder 22 is in a standby state, when the first control interface 201 is connected to the third SIM card holder 23, the SIM card installed in the second SIM card holder 23 is in a standby state, and the SIM card in the standby state can be used for operations such as making a call, accessing a mobile data network, and the like.

Similarly, the SIM card socket connected to the second control interface 202 may be the first SIM card socket 21, or the second SIM card socket 22, or the third SIM card socket 23, i.e. the second control interface 202 may be switched among the first SIM card socket 21, the second SIM card socket 22, and the third SIM card socket 23. When the second control interface 202 is connected to the first SIM card holder 21, the SIM card installed in the first SIM card holder 21 is in a standby state, when the second control interface 202 is connected to the second SIM card holder 22, the SIM card installed in the second SIM card holder 22 is in a standby state, when the second control interface 202 is connected to the third SIM card holder 23, the SIM card installed in the third SIM card holder 23 is in a standby state, and the SIM card in the standby state can be used for operations such as making a call, accessing a mobile data network, and the like.

It should be noted that the first control interface 201 and the second control interface 202 cannot be connected to the same SIM card socket. In the SIM card switching circuit, both the first control interface 201 and the second control interface 202 may be connected to the first SIM card socket 21, or the second SIM card socket 22, or the third SIM card socket 23. However, when the first control interface 201 is connected to a certain SIM card socket, the second control interface 22 can not be connected to the same SIM card socket, and similarly, when the second control interface 202 is connected to a certain SIM card socket, the first control interface 21 can not be connected to the same SIM card socket.

The SIM card switching circuit provided in the embodiment of the present application includes a baseband processor, a first SIM card holder, a second SIM card holder, and a third SIM card holder, where the baseband processor includes a first control interface and a second control interface, and the first SIM card holder, or the second SIM card holder, or the third SIM card holder, is connected to the first control interface, so that the SIM card holder connected to the first control interface can be switched among the first SIM card holder, the second SIM card holder, and the third SIM card holder; the first SIM card seat, or the second SIM card seat, or the third SIM card seat is connected with the second control interface, so that the SIM card seat connected with the second control interface can be switched among the first SIM card seat, the second SIM card seat and the third SIM card seat; the SIM card seat connected with the first control interface is different from the SIM card seat connected with the second control interface. The scheme that this application embodiment provided can realize the switching of SIM card through switching the SIM cassette of first control interface connection or switching the SIM cassette of second control interface connection, when carrying out the switching of SIM card, the SIM card still is in original SIM cassette, need not that the user opens lid behind the cell-phone and changes, and is easy and simple to handle.

The embodiments of the present application will be described in detail with reference to specific examples.

Fig. 3 is a schematic structural diagram of a SIM card switching circuit according to another embodiment of the present application, as shown in fig. 3, including a baseband processor 20, a first SIM card socket 21, a second SIM card socket 22, and a third SIM card socket 23, where the baseband processor 20 includes a first control interface 201 and a second control interface 202.

The baseband processor 20 controls the first SIM card holder 21 to be connected to the first control interface 201, or controls the second SIM card holder 22 to be connected to the first control interface 201, or controls the third SIM card holder 23 to be connected to the first control interface 201;

the baseband processor 20 connects the first SIM socket 21 with the second control interface 202, or controls the second SIM socket 22 to connect with the second control interface 202, or controls the third SIM socket 23 to connect with the second control interface 202.

As shown in fig. 3, the baseband processor 20 further includes a third control interface 203 and a fourth control interface 204, wherein:

the baseband processor 20 controls the first SIM card holder 21 to be connected to the first control interface 201 through the third control interface 203, or controls the second SIM card holder 22 to be connected to the first control interface 201, or controls the third SIM card holder 23 to be connected to the first control interface 201;

the baseband processor 20 further controls the first SIM socket 21 to connect with the second control interface 202 through the fourth control interface 204, or controls the second SIM socket 22 to connect with the second control interface 202, or controls the third SIM socket 23 to connect with the second control interface 202.

Specifically, the SIM card switching circuit further includes a first single-pole-three-throw switch 211 and a second single-pole-three-throw switch 212, wherein;

one end of the first single-pole-three-throw switch 211 is connected to the first control interface 201 and the third control interface 203, respectively, and the other end of the first single-pole-three-throw switch 211 is connected to the first SIM card holder 21, or the second SIM card holder 22, or the third SIM card holder 23;

one end of the second single-pole-three-throw switch 212 is connected to the second control interface 202 and the fourth control interface 204, respectively, and the other end of the second single-pole-three-throw switch 212 is connected to the first SIM card holder 21, or the second SIM card holder 22, or the third SIM card holder 23.

In fig. 3, when the baseband processor 20 controls the third control interface 203 such that the third control interface 203 controls the other end of the first single pole, three throw switch 211 to be connected to the first SIM card socket 21, the first SIM card socket 21 is connected to the first control interface 201. If the baseband processor 20 needs to switch the SIM card socket connected to the first control interface 201 to the second SIM card socket 22, the baseband processor 20 may control the third control interface 203 to connect the other end of the first single-pole-three-throw switch 211 to the second SIM card socket 22, and at this time, the first control interface 201 is connected to the second SIM card socket 22, so as to implement switching of the SIM card socket connected to the first control interface 201.

Similarly, when the baseband processor 20 controls the fourth control interface 204 such that the fourth control interface 204 controls the other end of the second single-pole-three-throw switch 212 to connect to the second SIM socket 22, the second SIM socket 22 is connected to the second control interface 202. If the baseband processor 20 needs to switch the SIM card socket connected to the second control interface 202 to the third SIM card socket 23, the baseband processor 20 may control the fourth control interface 204 to enable the other end of the second single-pole-three-throw switch 212 to be connected to the third SIM card socket 23, and at this time, the second control interface 202 is connected to the third SIM card socket 23, so as to implement switching of the SIM card socket connected to the second control interface 202.

Optionally, the baseband processor in this embodiment of the application is a 4G chip, for example, the baseband processor is a Global System for Mobile Communications (GSM) chip supporting a 4G network (LTE network).

In the current terminal device, when the terminal device has a multi-card multi-standby function, if one of the SIM cards makes a call, the network of the other SIM card is switched to a 2G network or a 3G network. In this embodiment of the application, the function of the baseband processor is implemented by using a 4G chip, the first SIM card socket, the second SIM card socket, or the third SIM card socket is connected to the baseband processor through the first control interface, and one of the other two SIM card sockets except the one connected to the first control interface is connected to the baseband processor through the second control interface. Therefore, the SIM card switching circuit in the application can realize the three-card dual-standby function after being installed on the terminal equipment, and the two SIM cards in standby can be in a 4G network state, so that the SIM card switching circuit has better communication quality. Even if one SIM card is in a communication state, the SIM card in the other standby state is not affected, and the 4G communication service can still be enjoyed.

The SIM card switching of the scheme of the present application is described below with reference to the accompanying drawings.

Fig. 4 is a first SIM card switching interface diagram provided in this embodiment of the present application, as shown in fig. 4, a user may input a switching instruction by operating a mobile phone 40, and a baseband processor in the mobile phone 40 receives the switching instruction, and switches a SIM card socket connected to a first control interface and/or a SIM card socket connected to a second control interface according to the switching instruction.

Taking the SIM card socket connected to the first control interface as the main card socket and the SIM card socket connected to the second control interface as the sub card socket as an example, in fig. 4, the user inputs a switching instruction by clicking the mobile phone screen, and the baseband processor switches the SIM card socket connected to the first control interface and/or switches the SIM card socket connected to the second control interface according to the switching instruction.

Specifically, when the switching instruction is used to instruct to switch the SIM card socket connected to the first control interface, after receiving the switching instruction, the baseband processor controls the first control interface to connect to the second SIM card socket when the SIM card socket connected to the first control interface is the first SIM card socket, or controls the first control interface to connect to the third SIM card socket. When the SIM card socket connected to the first control interface is the second SIM card socket or the third SIM card socket, the operation steps are similar, and are not described herein again.

When the switching instruction is used for instructing to switch the SIM card socket connected with the second control interface, after receiving the switching instruction, the baseband processor controls the second control interface to be connected with the first SIM card socket or controls the second control interface to be connected with the third SIM card socket when the SIM card socket connected with the second control interface is the second SIM card socket. When the SIM card socket connected to the first control interface is the first SIM card socket or the third SIM card socket, the operation steps are similar, and are not described herein again.

For example, in the mobile phone illustrated in fig. 4, the primary card is an SIM card 1, the secondary card is an SIM card 2, which indicates that the SIM card socket connected to the first control interface is the first SIM card socket, and the SIM card socket connected to the second control interface is the second SIM card socket. The user clicks the mobile phone screen at this time to switch the main card, and then the baseband processor controls the SIM card holder connected with the first control interface to switch from the first SIM card holder to the third SIM card holder at this time, so that the SIM card 3 becomes the main card. If the user clicks the mobile phone screen at the moment to switch the secondary card, the baseband processor controls the SIM card seat connected with the second control interface to switch from the second SIM card seat to the first SIM card seat at the moment, and the SIM card 1 becomes the secondary card.

In the SIM card switching circuit, both the first control interface and the second control interface may be connected to the first SIM card socket, or the second SIM card socket, or the third SIM card socket, but the first control interface and the second control interface cannot be connected to the same SIM card socket at the same time. Therefore, when one of the control interfaces is connected to the first SIM card socket, if the baseband processor needs to control the other control interface to switch the SIM card socket to the first SIM card socket at this time, the control interface connected to the first SIM card socket needs to be switched to the other SIM card socket first, and the other SIM card sockets are the same. This process will be described below with reference to fig. 5.

Fig. 5 is a first schematic diagram of SIM card switching provided in the embodiment of the present application, and as shown in fig. 5, before a user performs switching, an SIM card socket connected to a first control interface is a first SIM card socket, and an SIM card socket connected to a second control interface is a second SIM card socket.

Because the SIM card seats connected with the first control interface and the second control interface can not be the same SIM card seat, if the user wants to switch the SIM card seat connected with the first control interface to the second SIM card seat at this time, the SIM card seat connected with the second control interface is firstly switched to the third SIM card seat.

In fig. 5, when the user clicks the mobile phone screen to initiate a switching command, an interface appears on the mobile phone screen, which shows "do you agree to switch the secondary card from SIM card 2 to SIM 3? ". If the user clicks and agrees, the baseband processor controls the first control interface to be connected with the second SIM card holder after the second control interface is connected with the third SIM card holder.

Fig. 6 is a schematic diagram illustrating a change of a SIM card switching circuit provided in an embodiment of the present application, as shown in fig. 6, the upper side is the SIM card switching circuit before a user performs switching, before the switching, the other end of the first single-pole-three-throw switch is connected to the first SIM card socket, and the other end of the second single-pole-three-throw switch is connected to the second SIM card socket. At this time, the primary card is SIM card 1, and the secondary card is SIM card 2.

After switching, the other end of the first single-pole three-throw switch is connected with the second SIM card holder, and the other end of the second single-pole three-throw switch is connected with the third SIM card holder. At this time, the primary card is SIM card 2, and the secondary card is SIM card 3.

Similarly, when the first control interface is connected to the first SIM card socket and the second control interface is connected to the third SIM card socket, if the switching instruction is used to switch the SIM card socket connected to the second control interface to the first SIM card socket, the baseband processor needs to control the first control interface to connect to the second SIM card socket before controlling the second control interface to connect to the first SIM card socket. That is, after the SIM card socket connected to the first control interface is switched to the second SIM card socket, the SIM card socket connected to the second control interface is switched to the first SIM card socket, so as to avoid that the SIM card sockets connected to the first control interface and the second control interface are the same SIM card socket. The specific implementation manner is similar to that illustrated in fig. 5 and 6, and is not described herein again.

Fig. 4-6 illustrate the switching of the SIM card by the user inputting a switching command, and another scheme is described below with reference to fig. 7 and 8.

Fig. 7 is a second drawing of an interface for switching an SIM card provided in this embodiment of the present application, as shown in fig. 7, a user may input an identifier of an SIM card socket by operating a mobile phone 70, and a baseband processor in the mobile phone 70 receives the identifier of the SIM card socket and connects the SIM card socket corresponding to the identifier of the SIM card socket with a first control interface, or connects the SIM card socket corresponding to the identifier of the SIM card socket with a second control interface.

Taking the SIM card socket connected to the first control interface as the main card socket and the SIM card socket connected to the second control interface as the sub card socket as an example, in fig. 7, the user inputs an identifier of the SIM card socket by clicking a mobile phone screen, and the baseband processor determines the SIM card socket connected to the first control interface and/or determines the SIM card socket connected to the second control interface according to the identifier of the SIM card socket.

Specifically, when the SIM card holder identifier is used to indicate the SIM card holder to which the first control interface is connected, after receiving the SIM card holder identifier, the baseband processor controls the first control interface to connect to the first SIM card holder when the SIM card holder identifier indicates the first SIM card holder; and when the SIM card seat identification indicates a second SIM card seat, controlling the first control interface to be connected with the second SIM card seat.

When the SIM card seat identification is used for indicating the SIM card seat connected with the second control interface, the baseband processor controls the second control interface to be connected with the second SIM card seat when the SIM card seat identification indicates the second SIM card seat after receiving the SIM card seat identification; and when the SIM card seat identification indicates a third SIM card seat, controlling the second control interface to be connected with the third SIM card seat.

For example, in the mobile phone illustrated in fig. 7, the primary card is an SIM card 1, the secondary card is an SIM card 3, which indicates that the SIM card socket connected to the first control interface is a first SIM card socket, and the SIM card socket connected to the second control interface is a third SIM card socket. The user clicks the mobile phone screen at this time to input the SIM card seat identification of the main card, and if the input SIM card seat identification is the first SIM card seat, the first control interface is connected with the first SIM card seat at this time, so that no operation can be performed. If the input SIM card holder identification is the second SIM card holder, the baseband processor controls the SIM card holder connected with the first control interface to switch from the first SIM card holder to the second SIM card holder at this time, and the SIM card 2 becomes the master card.

When the user clicks the mobile phone screen to input the SIM card socket identifier of the secondary card, if the input SIM card socket identifier is the third SIM card socket, the second control interface is connected to the third SIM card socket, so that no operation is performed. If the input SIM card holder identification is the second SIM card holder, the baseband processor controls the SIM card holder connected with the second control interface to switch from the third SIM card holder to the second SIM card holder at this time, and the SIM card 2 becomes the secondary card.

In the SIM card switching circuit, both the first control interface and the second control interface may be connected to the first SIM card socket, or the second SIM card socket, or the third SIM card socket, but the first control interface and the second control interface cannot be connected to the same SIM card socket at the same time. Therefore, when one of the control interfaces is connected to the first SIM card socket, if the baseband processor needs to control the other control interface to switch the SIM card socket to the first SIM card socket at this time, the control interface connected to the first SIM card socket needs to be switched to the other SIM card socket first, and the other SIM card sockets are the same. This process will be described below with reference to fig. 8.

Fig. 8 is a schematic diagram of a second SIM card switching provided in the embodiment of the present application, and as shown in fig. 8, before a user inputs an identifier of a SIM card holder, a SIM card holder connected to a first control interface is a first SIM card holder, and a SIM card holder connected to a second control interface is a second SIM card holder.

Because the SIM card seats connected with the first control interface and the second control interface can not be the same SIM card seat, if the user inputs the SIM card seat identification of the main card at this time and the SIM card seat identification indicates the second SIM card seat, the SIM card seat connected with the first control interface is switched to the second SIM card seat, therefore, if the switching is to be completed, the SIM card seat connected with the second control interface is firstly switched to the third SIM card seat.

In fig. 8, when the user clicks the screen of the mobile phone to input the SIM card socket id of the main card, an interface appears on the screen of the mobile phone, and the interface displays "need to switch the secondary card from SIM card 2 to SIM3, whether or not to agree? ". If the user clicks and agrees, the baseband processor controls the first control interface to be connected with the second SIM card holder after the second control interface is connected with the third SIM card holder.

The change of the SIM card switching circuit before and after switching is the same as that in fig. 6, before switching, the other end of the first single-pole triple-throw switch is connected to the first SIM card holder, and the other end of the second single-pole triple-throw switch is connected to the second SIM card holder. At this time, the primary card is SIM card 1, and the secondary card is SIM card 2.

Similarly, when the first control interface is connected to the second SIM card socket and the second control interface is connected to the third SIM card socket, the user inputs the SIM card socket identifier of the secondary card, and the SIM card socket identifier indicates the second SIM card socket, so that the baseband processor needs to control the first control interface to connect to the first SIM card socket before controlling the second control interface to connect to the second SIM card socket. That is, after the SIM card socket connected to the first control interface is switched to the first SIM card socket, the SIM card socket connected to the second control interface is switched to the second SIM card socket, so as to avoid that the SIM card sockets connected to the first control interface and the second control interface are the same SIM card socket.

The SIM card switching circuit provided in the embodiment of the present application includes a baseband processor, a first SIM card socket, a second SIM card socket, and a third SIM card socket in the SIM card switching circuit, where the baseband processor includes a first control interface and a second control interface, and the first SIM card socket, or the second SIM card socket, or the third SIM card socket, is connected to the first control interface through a first single-pole three-throw switch, so that the SIM card socket connected to the first control interface can be switched between the first SIM card socket and the second SIM card socket; the first SIM card seat, or the second SIM card seat, or the third SIM card seat is connected with the second control interface through the second single-pole three-throw switch, so that the SIM card seat connected with the second control interface can be switched between the second SIM card seat and the third SIM card seat; the SIM card seat connected with the first control interface is different from the SIM card seat connected with the second control interface. The scheme that this application embodiment provided can realize the switching of SIM card through switching the SIM cassette of first control interface connection or switching the SIM cassette of second control interface connection, when carrying out the switching of SIM card, the SIM card still is in original SIM cassette, need not that the user opens lid behind the cell-phone and changes, and is easy and simple to handle.

Fig. 9 is a schematic flowchart of a method for switching an SIM card according to an embodiment of the present application, where the method is applied to a baseband processor in a SIM card switching circuit, where the SIM card switching circuit further includes a first SIM card socket, a second SIM card socket, and a third SIM card socket, and the baseband processor includes a first control interface and a second control interface, and as shown in fig. 9, the method may include:

s91, controlling the first SIM card socket, or the second SIM card socket, or the third SIM card socket to connect with the first control interface;

s92, controlling the first SIM card socket, or the second SIM card socket, or the third SIM card socket to connect with the second control interface;

In one possible embodiment, the method further comprises:

receiving a switching instruction;

In one possible embodiment, the method further comprises:

receiving an SIM card seat identification;

The method provided in the embodiment of the present application is used to implement the processing scheme of the baseband processor in the SIM card switching circuit, and specific implementation manners are detailed in the above embodiment and will not be described herein again.

The embodiment of the present application further provides a terminal device, where the terminal device includes the SIM card switching circuit described in any one of the above embodiments.

The present application further provides a computer-readable storage medium, in which computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the SIM card switching method as described above is implemented.

The computer-readable storage medium may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.

The division of the units is only a logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The utility model provides a subscriber identity discernment SIM card switching circuit, its characterized in that includes baseband processor, first SIM cassette, second SIM cassette and third SIM cassette, baseband processor includes first control interface and second control interface, wherein:

2. The circuit of claim 1, wherein the baseband processor is configured to:

3. The circuit of claim 2, wherein the baseband processor is specifically configured to:

receiving a switching instruction;

4. The circuit of claim 2, wherein the baseband processor is specifically configured to:

receiving an SIM card seat identification;

5. The circuit of claim 2, wherein the baseband processor further comprises a third control interface and a fourth control interface, wherein:

6. The circuit of claim 5, wherein the SIM card switching circuit further comprises a first single-pole-three-throw switch and a second single-pole-three-throw switch, wherein;

7. The circuit of claim 3, wherein before receiving the switching instruction, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; the switching instruction is used for indicating the SIM card seat connected with the first control interface to be switched; the baseband processor is specifically configured to:

receiving the switching instruction;

8. The circuit of claim 7, wherein if the switching instruction is used to instruct the first control interface to connect to the second SIM socket, the baseband processor is further configured to, before controlling the first control interface to connect to the second SIM socket according to the switching instruction:

9. The circuit of claim 3, wherein before receiving the switching instruction, the SIM card socket connected with the first SIM card controller is a first SIM card socket, and the SIM card socket connected with the second SIM card controller is a second SIM card socket; the switching instruction is used for indicating to switch the SIM card seat connected with the second control interface; the baseband processor is specifically configured to:

receiving the switching instruction;

10. The circuit of claim 9, wherein if the switching instruction is used to instruct the second control interface to connect to the first SIM card holder, the baseband processor is further configured to, before controlling the second control interface to connect to the first SIM card holder according to the switching instruction:

11. The circuit of claim 4, wherein the SIM socket identifies a SIM socket used to indicate a first control interface connection; the baseband processor is specifically configured to:

receiving the SIM card seat identification;

12. The circuit of claim 11, wherein before receiving the SIM card socket identification, the SIM card socket connected to the first SIM card controller is a first SIM card socket, and the SIM card socket connected to the second SIM card controller is a second SIM card socket; if the SIM card socket identifier indicates the second SIM card socket, the baseband processor is further configured to, before controlling the first control interface to connect to the second SIM card socket:

13. The circuit of claim 4, wherein the SIM socket identifies a SIM socket for indicating a second control interface connection; the baseband processor is specifically configured to:

receiving the SIM card seat identification;

14. The circuit of claim 13, wherein prior to receiving the SIM card socket identification, the SIM card socket connected to the first SIM card controller is a first SIM card socket, and the SIM card socket connected to the second SIM card controller is a second SIM card socket; if the SIM card socket identifier indicates the first SIM card socket, the baseband processor is further configured to, before controlling the second control interface to connect to the first SIM card socket:

15. The circuit of any of claims 1-14, wherein the baseband processor is a 4G chip.

16. A method for switching SIM cards is applied to a baseband processor in a SIM card switching circuit, the SIM card switching circuit further comprises a first SIM card holder, a second SIM card holder and a third SIM card holder, the baseband processor comprises a first control interface and a second control interface, and the method comprises the following steps:

17. The method of claim 16, wherein the baseband processor further comprises a third control interface and a fourth control interface; the controlling the first SIM card socket, or the second SIM card socket, or the third SIM card socket, connected to the first control interface includes:

18. The method of claim 16, further comprising:

receiving a switching instruction;

19. The method of claim 16, further comprising:

receiving an SIM card seat identification;

20. The method of claim 18, wherein before receiving the switching command, the SIM card socket connected to the first SIM card controller is a first SIM card socket, and the SIM card socket connected to the second SIM card controller is a second SIM card socket; the switching the SIM card socket connected to the first control interface and/or the switching the SIM card socket connected to the second control interface according to the switching instruction includes:

21. The method of claim 20, wherein if the switching instruction is used to instruct the first control interface to connect to the second SIM socket, before controlling the first control interface to connect to the second SIM socket according to the switching instruction, the method further comprises:

22. The method of claim 18, wherein before receiving the switching command, the SIM card socket connected to the first SIM card controller is a first SIM card socket, and the SIM card socket connected to the second SIM card controller is a second SIM card socket; the switching the SIM card socket connected to the first control interface and/or the switching the SIM card socket connected to the second control interface according to the switching instruction includes:

23. The method of claim 22, wherein if the switching instruction is used to instruct the second control interface to connect to the first SIM socket, before controlling the second control interface to connect to the first SIM socket according to the switching instruction, the method further comprises:

24. The method of claim 19, wherein the SIM card holder identifies a SIM card holder for indicating a first control interface connection; the connecting the SIM card socket corresponding to the SIM card socket identifier with the first control interface or connecting the SIM card socket corresponding to the SIM card socket identifier with the second control interface according to the SIM card socket identifier includes:

25. The method of claim 24, wherein before receiving the SIM card holder identification, the SIM card holder connected to the first SIM card controller is a first SIM card holder, and the SIM card holder connected to the second SIM card controller is a second SIM card holder; if the SIM card socket identifier indicates the second SIM card socket, before controlling the first control interface to connect to the second SIM card socket, the method further includes:

26. The method of claim 19, wherein the SIM card holder identifies a SIM card holder for indicating a second control interface connection; the connecting the SIM card socket corresponding to the SIM card socket identifier with the first control interface or connecting the SIM card socket corresponding to the SIM card socket identifier with the second control interface according to the SIM card socket identifier includes:

27. The method of claim 26, wherein before receiving the SIM card holder identification, the SIM card holder connected to the first SIM card controller is a first SIM card holder, and the SIM card holder connected to the second SIM card controller is a second SIM card holder; if the SIM card socket identifier indicates the first SIM card socket, before controlling the second control interface to connect to the first SIM card socket, the method further includes:

28. The circuit of any of claims 16-27, wherein the baseband processor is a 4G chip.

29. A terminal device, characterized in that it comprises a SIM card switching circuit according to any one of claims 1 to 15.