WO2021218494A1 - Dual-card-based network type switching method and terminal device - Google Patents

Abstract

The present application relates to the technical field of mobile communications, and provides a dual-card-based network type switching method and a terminal device. The method is applied to the terminal device, and the terminal device comprises a master card slot and a slave card slot. The method comprises: obtaining a first network type camped in real time by a master subscriber identity card, and a highest supported second network type of the master card slot; if the version of the first network type is lower than that of the second network type, performing network searching using a network searching module corresponding to the slave card slot; and screening a type having the highest version from all types obtained by network searching, and switching the network type camped in real time by the master subscriber identity card to the type having the highest version. According to embodiments of the present application, a network type version of a master card can be rapidly upgraded, and the influence on a master card service is also reduced.

Description

Dual-card-based network standard switching method and terminal equipment

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on April 30, 2020, the application number is 202010364855.8, and the application name is "Dual card-based network system switching method and terminal equipment", the entire content of which is incorporated by reference Incorporated in this application.

Technical field

This application belongs to the field of mobile communication technology, and in particular relates to a dual-card-based network standard switching method and terminal equipment.

Background technique

The dual-card terminal device (hereinafter referred to as the terminal device) is provided with two card slots for placing two different subscriber identity module (SIM) cards. Among them, one of the two card slots is a main card slot, and the other is a secondary card slot. The SIM card inserted in the main card slot is the primary SIM card (hereinafter referred to as the main card), and the SIM card inserted in the secondary card slot is the secondary SIM card (hereinafter referred to as the secondary card). Generally, the main card provides call services and data services, while the secondary card is mainly used to provide call services.

In actual applications, the version of the network standard (hereinafter referred to as the standard) supported by the main card slot is often more comprehensive, for example, it may be able to support 2G, 3G, 4G and 5G at the same time. After the terminal device is turned on or turned off the flight mode, it will automatically search the network of the SIM card and register the main card to the available network. However, due to problems such as the network search strategy of the terminal device, it is often the case that the main card resident standard version is lower than its actual resident higher standard. For example, when the actual resident standards of the main card are 3G, 4G, and 5G, the actual resident standards may be 3G. At this time, the user can only use the lower standard version of the network for data services, which reduces the data service capability of the terminal device, thereby reducing the user experience.

In order to make the main card reside in a higher-standard network, the traditional method will automatically perform the main card network search and re-select the standard after the cell information of the main card changes. Because the network search process takes a long time, and the main card cannot use services during the network search process. Therefore, on the one hand, this will affect the normal use of the main card business, on the other hand, it still cannot guarantee that the main card can reside in the high-version standard network.

Summary of the invention

In view of this, the embodiments of the present application provide a dual-card-based network standard switching method and terminal equipment, which can solve the problem that it is difficult for the main card to reside on a high-version standard network in the prior art, resulting in low service processing capabilities of the terminal equipment .

The first aspect of the embodiments of the present application provides a dual-card-based network standard switching method, which is applied to a terminal device. The terminal device includes a primary card slot and a secondary card slot, and the method includes:

Acquiring the first network standard that the main user identification card resides in real time, and the second network standard that the main card slot supports;

If the version of the first network standard is lower than the version of the second network standard, use the network search module corresponding to the secondary card slot to perform network search;

The system with the highest version is selected from all the systems obtained from the network search, and the network system where the master user identification card resides in real time is switched to the system with the highest version.

In the embodiment of the present application, the network search is performed through the network search module corresponding to the secondary card slot, and the standard switching of the main card is performed according to the searched standard. For the main card, the network standard version can be upgraded by simply switching the standard according to the search results, without the need for complex network search operations. Therefore, the impact on the normal business use of the main card is minimal.

In the first possible implementation manner of the first aspect, the operations of network search and mode selection switching include:

Use the network search module corresponding to the secondary card slot to perform network search to obtain at least one first cell network and a third network standard supported by each of the first cell networks;

If there is a standard with a higher version than the first network standard in the third network standard, the target network standard with the highest version in the third network standard is screened out, and the target network standard to which the target network standard belongs is obtained. The first cell information of the first cell network;

Perform network registration on the primary user identification card based on the first cell information, so that the primary user identification card resides in the target network standard.

On the one hand, since the target network standard is the highest standard in the search results and is higher than the real-time resident standard of the main card, it is possible to improve the resident standard of the main card. And can make the actual resident standard version of the main card reach the highest version actually available as much as possible. So that the terminal equipment can have strong data service capabilities. On the other hand, because the embodiment of the present application uses the network search module corresponding to the secondary card slot to perform network search operations, and after determining a suitable cell network, the cell network information is shared with the main card. For the main card, only need to perform network registration according to the community network information, without the need for complex network search operations. Therefore, the impact on the normal business use of the main card is minimal.

In a second possible implementation manner of the first aspect, before the network search module corresponding to the secondary card slot is used for network search, the method further includes:

Acquiring the number of user identification cards in the terminal device;

Correspondingly, if the version of the first network standard is lower than the version of the second network standard, using the network search module corresponding to the secondary card slot to perform network search includes:

If the number is 1, and the version of the first network standard is lower than the version of the second network standard, the network search module corresponding to the secondary card slot is used for network search.

When there is only one SIM card, and the network standard version does not reach the highest version supported by the main card slot, it means that theoretically the terminal device main card can also reside in a higher version standard. At this time, the network search module corresponding to the secondary card slot is used for network search, which can prevent the influence on the normal business of the main card.

In a third possible implementation manner of the first aspect, before the network search is performed using the network search module corresponding to the secondary card slot, the method further includes:

Acquiring the number of user identification cards in the terminal device;

Correspondingly, if the version of the first network standard is lower than the version of the second network standard, using the network search module corresponding to the secondary card slot to perform network search includes:

If the number is 2, and the version of the first network standard is lower than the version of the second network standard, the fourth network standard in which the secondary user identification card resides in real time is acquired, and the primary user identification card belongs to The first operator of and the second operator to which the secondary user identification card belongs;

If the first operator and the second operator are the same, and the version of the fourth network standard is lower than the version of the second network standard, the network search module corresponding to the secondary card slot is used for network search.

When there are two SIM cards, and the main card network standard version has not reached the highest version supported by the main card slot, it means that theoretically the terminal device main card can also reside in a higher version standard. When the operator of the main card and the auxiliary card is the same, and the current standard version of the auxiliary card is lower than the highest version supported by the main card slot, regardless of whether the current standard version of the auxiliary card is higher than the current standard version of the main card, It is impossible to increase the standard version of the primary card to the highest level through the real-time access to the community network through the secondary card. Therefore, the embodiment of this application does not need to care about the level of the standard version currently resident on the secondary card and the standard version currently resident on the main card, but will use the network search module corresponding to the secondary card slot to perform a network search to check the resident standard of the main card. The version has been upgraded to the greatest extent.

On the basis of the third possibility, in the fourth possible implementation of the first aspect, it also includes:

If the first operator and the second operator are the same, and the fourth network standard is the same as the version of the second network standard, acquire the second cell network that the secondary user identification card has real-time access to ’S second cell information;

Perform network registration on the primary subscriber identity card based on the second cell information, so that the subscriber identity card resides in the fourth network standard.

When the operator of the main card and the auxiliary card is the same, and the current standard version of the auxiliary card is equal to the highest version supported by the main card, it means that the main card can only upgrade the standard version to the current standard version of the auxiliary card. Therefore, at this time, the embodiment of the present application will obtain the cell information of the cell network that the secondary card accesses in real time, and share the cell information with the primary card, so that the primary card can quickly register in the cell network. And then quickly raise the standard version to the highest.

On the basis of the third possibility, in the fifth possible implementation of the first aspect, it also includes:

If the first operator and the second operator are different, the network search module corresponding to the secondary card slot is used for network search.

When the operators of the primary card and the secondary card are different, it means that the primary card cannot register to access the community network that the secondary card accesses in real time. That is, regardless of the current standard version of the secondary card, it has lost its reference significance. Therefore, the embodiment of the present application will use the network search module corresponding to the secondary card slot to perform network search at this time, so as to maximize the resident standard version of the main card.

In the sixth possible implementation manner of the first aspect, before acquiring the first network standard that the main subscriber identification card resides in real time and the second network standard that the main card slot supports, the method further includes:

If the preset trigger condition is detected, the operation of acquiring the first network standard that the main user identification card resides in real time and the second network standard that the main card slot supports is performed.

Among them, the trigger conditions can be: the user activates the standard enhancement function, the main card cell information changes, the main card signal quality is lower than the preset threshold, the main card has a standard fall in the voice service process and the voice service ends, timing triggering and receiving Trigger any one or more of the instructions. For different actual scenarios, one or more different trigger conditions can be set to meet the requirements of the actual scenario. For example, when the system fallback recognition is included, when the system fallback occurs, the main card system can be quickly picked up. For another example, all the trigger conditions corresponding to the above 6 scenarios can be set as the trigger conditions of the embodiment of this application. At this time, the embodiments of the present application can at least cope with the actual requirements of the above 6 scenarios, thereby achieving rapid improvement of the main card standard version in different scenarios, achieving compatible processing of requirements of different scenarios, and having stronger compatibility.

In a seventh possible implementation manner of the first aspect, the terminal device is a dual-card dual-standby single-pass device, and the use of a network search module corresponding to the secondary card slot to perform network search includes:

The service status of the primary user identification card is acquired, and if the service status is idle, the network search module corresponding to the secondary card slot is used to perform network search.

The network search is performed when the main card is not in the state of data service or voice service. At this time, the user can use the main card service normally without perceiving the standard search for the main card in the embodiment of the present application.

In an eighth possible implementation manner of the first aspect, performing network registration on the primary subscriber identification card based on the first cell information includes:

Acquire the service status of the primary user identification card, and if the service status is an idle state, perform network registration on the primary user identification card based on the first cell information.

The cell handover and network registration are performed when the main card is not in the state of data service or voice service. At this time, the user can use the main card service normally without perceiving the standard switch of the main card in the embodiment of the present application.

The second aspect of the embodiments of the present application provides a dual-card-based network standard switching method, which is applied to a terminal device. The terminal device includes two card slots, and the method includes:

Detecting the user identification cards inserted in the two card slots;

If only one user identification card is inserted into the two card slots, the fifth network standard that the inserted user identification card resides in real time and the sixth highest supported sixth network standard of the inserted user identification card are obtained. Network standard;

If the version of the fifth network standard is lower than the version of the sixth network standard, use the network search module corresponding to the card slot where the user identification card is not inserted in the two card slots to perform network search;

The system with the highest version is selected from all the systems obtained from the network search, and the network system where the inserted user identification card resides in real time is switched to the system with the highest version.

In the embodiment of the present application, the network search is performed through the network search module corresponding to the card slot in which the user identification card is not inserted, and the standard switching of the main card is performed according to the searched standard. For the inserted user identification card, the network standard version can be upgraded only by switching the standard according to the search result, without the need for complicated network search operations. Therefore, the impact on the normal business use of the inserted subscriber identification card is minimal.

In the first possible implementation manner of the second aspect, the operation of network search and standard screening switching includes: using the network search module corresponding to the card slot in which the user identification card is not inserted in the two card slots to perform the network search, Obtain at least one third cell network and a seventh network standard supported by each third cell network;

If there is a system with a version higher than the version of the fifth network standard in the seventh network standard, the first target standard with the highest version in the seventh network standard is filtered out, and the third target standard to which the first target standard belongs is obtained. The third cell information of the cell network;

Perform network registration on the inserted user identification card based on the third cell information, so that the inserted user identification card resides in the first target standard.

On the one hand, since the first target standard is the highest standard in the search results and is higher than the real-time resident standard of the inserted user identification card, the resident standard of the inserted user identification card can be improved. And the actual resident standard version of the inserted user identification card can reach the highest version actually available as much as possible. So that the terminal equipment can have strong data service capabilities. On the other hand, because the embodiment of this application is not inserted into the network search module corresponding to the card slot of the user identification card to perform the network search operation, and after determining a suitable cell network, the cell network information will be shared with the inserted user Identification card. For the user identification card that has been inserted, it is only necessary to perform network registration according to the community network information, and there is no need to perform complex network search operations. Therefore, the impact on the normal business use of the inserted subscriber identification card is minimal.

The third aspect of the embodiments of the present application provides a dual-card-based network standard switching method, which is applied to a terminal device, the terminal device includes two card slots, and the method includes:

Detecting the user identification cards inserted in the two card slots;

If user identification cards are inserted in both of the two card slots, and the network standard versions of the two user identification cards that reside in real time are both lower than the highest supported network standard version of the respective card slots, then obtain the two user identification cards Business status

If there are a first target card whose service state is in a connected state and a second target card whose service state is in an idle state among the two user identification cards, use the network search module corresponding to the card slot to which the second target card belongs to perform network search;

The system with the highest version is selected from all the systems obtained by the network search, and the network system where the first target card resides in real time is switched to the system with the highest version.

In the embodiment of the present application, when both cards need to be upgraded, the card slot in the idle state is used first to assist the card in the connected state to upgrade the system, so as to ensure the normal use of the terminal device as much as possible.

In the first possible implementation manner of the third aspect, the network standard supported by the card slot to which the first target card belongs is taken as the ninth network standard, and the network standard in which the second target card resides in real time is taken as the tenth network standard. Network standard;

Before the network search is performed by using the network search module corresponding to the card slot to which the second target card belongs, the method further includes:

A third operator of the first target card and a fourth operator of the second target card;

If the third operator and the fourth operator are the same, and the version of the tenth network standard is lower than the version of the ninth network standard, execute the use of the slot to which the second target card belongs The corresponding network search module performs network search operations; or

If the third operator and the fourth operator are different, perform the operation of using the network search module corresponding to the card slot to which the second target card belongs to perform network search.

When the two SIM cards have the same operator, and the current standard version of the idle SIM card is lower than the highest version supported by the connected SIM card, no matter whether the current standard version of the idle SIM card is higher than the connected SIM card The current resident standard version (that is, the eighth network standard) cannot increase the connected SIM card standard version to the highest level by real-time access to the cell network through the idle SIM card. When the operators of the two SIM cards are different, it means that the connected SIM card cannot register to access the cell network that the idle SIM card accesses in real time. That is, regardless of the current standard version of the SIM card in the idle state, it has lost its reference significance. Therefore, when the current standard version of the idle SIM card is lower than the highest version supported by the connected SIM card slot, and when the operators are different, the embodiment of the present application does not need to care about the current standard version of the idle SIM card. Instead, the network search module corresponding to the idle SIM card slot will be used to search the network for the current standard version of the connected SIM card, so as to maximize the resident standard version of the connected SIM card.

In the second possible implementation manner of the third aspect, if the third operator and the fourth operator are the same, and the tenth network standard is the same as the ninth network standard version, obtain all The fourth cell information of the fourth cell network accessed by the second target card in real time, and network registration is performed on the first target card based on the fourth cell information, so that the first target card resides in all In the tenth network standard.

When the two SIM cards have the same operator, and the current standard version of the idle SIM card is equal to the highest version supported by the connected SIM card, it means that the connected SIM card can only increase the standard version to the current idle SIM card. Resident standard version. Therefore, at this time, the embodiment of the present application will obtain the cell information of the cell network that the idle state SIM card accesses in real time, and share the cell information with the connected state SIM card, so that the connected state SIM card can quickly register in the cell network. And then quickly raise the standard version to the highest.

The fourth aspect of the embodiments of the present application provides a dual-card-based network standard switching method, which is applied to a terminal device. The terminal device includes two card slots, and the method includes:

Detecting the user identification cards inserted in the two card slots;

If user identification cards are inserted in both of the two card slots, and in the two user identification cards, the version of the eleventh network standard that resides in real time is lower than the version of the twelfth network standard supported by the card slot to which it belongs And the fourth target card that has the same thirteenth network standard and the fourteenth network standard version supported by its own card slot in real time, then compare the twelfth network standard with the fourth target card. Fourteen network standard version level;

If the version of the twelfth network standard is higher than the version of the fourteenth network standard, use the network search module corresponding to the card slot to which the fourth target card belongs to perform network search;

The system with the highest version is selected from all the systems obtained from the network search, and the network system where the third target card resides in real time is switched to the system with the highest version.

At this point, it is explained that by upgrading the standard version of the third target card, the service processing capability of the terminal device may be further improved. Therefore, the network search module corresponding to the card slot to which the fourth target card belongs is used for network search, and then the corresponding standard screening is performed and the third target card standard is switched. In order to improve the standard version of the third target card.

In the first possible implementation manner of the fourth aspect, if the versions of the twelfth network standard and the fourteenth network standard are the same, identify the operators to which the two user identification cards belong;

If the operators of the two subscriber identification cards are the same, use the sixth cell information of the sixth cell network that the fourth target card accesses in real time to perform network registration on the third target card, so that the third target The card resides in the fourteenth network standard.

At this time, it means that the third target card can only upgrade the standard version to the standard version currently resident on the fourth target card. Therefore, at this time, the embodiment of the present application will obtain the cell information of the cell network that the fourth target card accesses in real time, and share the cell information with the third target card, so that the third target card can quickly register in the cell network. And then quickly raise the standard version to the highest.

On the basis of the foregoing embodiments of the second, third, and fourth aspects, as an embodiment of the present application, before the detecting the user identification cards inserted in the two card slots, the method further includes:

If the preset trigger condition is detected, the operation of detecting the user identification cards inserted in the two card slots is performed.

Among them, the trigger conditions can be: the user activates the standard enhancement function, the main card cell information changes, the main card signal quality is lower than the preset threshold, the main card has a standard fall in the voice service process and the voice service ends, timing triggering and receiving Trigger any one or more of the instructions. For different actual scenarios, one or more different trigger conditions can be set to meet the requirements of the actual scenario. For example, when the system fallback recognition is included, when the system fallback occurs, the main card system can be quickly picked up. For another example, all the trigger conditions corresponding to the above 6 scenarios can be set as the trigger conditions of the embodiment of this application. At this time, the embodiments of the present application can at least cope with the actual requirements of the above 6 scenarios, thereby achieving rapid improvement of the main card standard version in different scenarios, achieving compatible processing of requirements of different scenarios, and having stronger compatibility.

A fifth aspect of the embodiments of the present application provides a terminal device. The terminal device includes a memory and a processor. The memory stores a computer program that can run on the processor. The processor executes the The computer program enables the terminal device to implement the steps of the dual-card-based network standard switching method as described in any one of the first, second, third, or fourth aspects.

A sixth aspect of the embodiments of the present application provides a computer-readable storage medium, including: a computer program is stored, and when the computer program is executed by a processor, the terminal device realizes the above-mentioned first aspect, second aspect, and first aspect. The steps of the dual-card-based network standard switching method according to any one of the third aspect or the fourth aspect.

The seventh aspect of the embodiments of the present application provides a computer program product. When the computer program product runs on a terminal device, the terminal device executes any one of the first aspect, the second aspect, the third aspect, or the fourth aspect. The method for switching network standards based on dual cards described in the item.

An eighth aspect of the embodiments of the present application provides a chip system, the chip system includes a memory and a processor, and the processor executes a computer program stored in the memory to implement the above-mentioned first aspect, second aspect, and The method for switching network standards based on dual cards according to any one of the third aspect or the fourth aspect.

It is understandable that the beneficial effects of the above fifth aspect to the eighth aspect can be referred to the related description in the above first aspect, which will not be repeated here.

Description of the drawings

FIG. 1A is a schematic structural diagram of a mobile phone provided by an embodiment of the present application;

FIG. 1B is a software structure block diagram of a terminal device provided by an embodiment of the present application;

2 is a schematic flowchart of a dual-card-based network standard switching method provided by an embodiment of the application;

3A is a schematic flowchart of a dual-card-based network standard switching method provided by an embodiment of this application;

3B is a schematic flowchart of a dual-card-based network standard switching method provided by an embodiment of the application;

3C is a schematic flowchart of a dual-card-based network standard switching method provided by an embodiment of the application;

Fig. 4 is a schematic structural diagram of a terminal device provided by an embodiment of the application.

Detailed ways

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, circuits, and methods are omitted to avoid unnecessary details from obstructing the description of this application.

First, some terms that may be involved in the embodiments of this application are explained as follows:

Cell: refers to the area covered by a base station or a part of a base station (sector antenna) in a cellular mobile communication system. In this area, mobile stations can reliably communicate with the base station through wireless channels. The specific rules for cell division and the size of the cell range are not limited here, and can be determined according to actual application scenarios. For example, a cell may be a public land mobile network (PLMN), a frequency point, and a physical cell identifier (physical cell identifier, PCI) unique minimum signal coverage.

Network standard version: In the embodiment of this application, it refers to the specific version algebra of the network standard. Since the network standard is named according to the order of appearance, such as 1G is the first-generation mobile communication system, 2G is the second-generation mobile communication system, 3G is the third-generation mobile communication system, and 4G is the fourth-generation mobile communication system. Technology, 5G is the fifth-generation mobile communication technology. Therefore, in the embodiment of the present application, the 1G standard version is the first generation version, the 2G standard version is the second generation version, and so on. Because the higher the version, the stronger the data transmission capability. Therefore, by resident the SIM card to a higher version standard, the data service and voice service capabilities of the terminal equipment can be improved.

SIM card: In this embodiment of the application, the actual type of the SIM card needs to be determined according to actual application scenarios. For example, the SIM card may be any one or more of a traditional SIM card, a universal subscriber identity module (USIM) card, an embedded subscriber identity module (eSIM) card, and a virtual subscriber identity card. On this basis, the determination of whether the SIM card is inserted in the embodiment of the present application is determined based on whether there is an available SIM card in the terminal device. If there is an available SIM card in the terminal device, it is already inserted. Among them, if the SIM card is an eSIM card or a virtual subscriber identification card, the enabled eSIM card or virtual subscriber identification card is regarded as an inserted card.

Card slot: For traditional physical cards such as SIM cards and USIM cards that need to be inserted, the card slot refers to the physical card slot used to place the SIM card. For non-physical cards such as eSIM cards and virtual subscriber identification cards, since they do not require a physical card slot, the card slot is also a virtual concept at this time. That is, the hardware used to place the SIM card, or the hardware integrated with the SIM card.

Network search module: It is the general name of the hardware required for network search corresponding to the card slot. Generally, it will include hardware such as baseband, radio frequency unit and memory, which can be determined according to the actual terminal equipment. Because common terminal equipment includes: dual card dual standby dual pass and dual card dual standby single pass. Among them, in the dual-card dual-standby dual-pass terminal device, each card slot has a set of independent hardware for network search and data services. For dual-card dual-standby single-pass terminal equipment, the two card slots share the baseband and radio frequency unit. Therefore, for the network search modules corresponding to the two card slots, there may be a situation where the hardware is shared. The details can be determined according to the actual terminal equipment.

In the prior art, due to the different search strategies of the terminal equipment network, even if there are some cell networks that support higher standards around the terminal equipment, there are often cases where the main card resident standard version is lower than its actual resident highest standard version. Condition. At this time, the user can only use the lower standard version of the network for data services, which reduces the data service capability of the terminal device, thereby reducing the user experience.

For example, suppose that in terminal device A, the main card slot supports 2G, 3G, 4G, and 5G. At the same time, it is assumed that the main card slot network search module can search for cell network a, cell network b, cell network c, and cell network d, and the four cell networks are all operator networks of the main card. Among them, the cell network a supports 3G, the cell network b supports 4G, and the cell network c is a non-standalone (NSA) architecture cell network that supports 4G and 5G, and the cell network d is a standalone network (stand alone, SA) structured cell network supports 5G. On this basis, when performing frequency selection and cell network registration based on historical frequency search strategies, signal energy sorting strategies, etc., it may cause the main card to reside on a lower version of the standard, making it impossible to use the 5G standard network for data business. For example, it may reside in 3G or 4G format.

In order to cope with this problem, the traditional method is to automatically search for the main card network and re-select the system after the cell network handover occurs on the main card. So as to realize the mobility to reside on the high-standard network. Because the network search process takes a long time, and the main card cannot use services during the network search process. Therefore, there will be at least the following problems:

1. The standard of the main card must be updated until the cell information switch of the main card occurs, which will make the main card stay in the low-standard network for a long time. 2. When re-searching the network, there are still problems with the original network search strategy, so that the re-resident system may still be low, that is, it is still impossible to ensure that the main card can reside in the high-version network. 3. Performing the main card network search will cause users to be unable to use the services of the main card, which will cause the user to have a greater impact on the normal use of the terminal equipment.

In order to achieve the improvement of the main card resident standard version, while reducing the impact on the normal use of terminal equipment data services and call services. In the embodiment of the present application, firstly, it will be identified whether the system that the main card actually resides in is the highest supported system. If not, it means that the main card resident system has room for improvement. At this time, the embodiment of the present application will use the network search module corresponding to the secondary card slot to perform network search, so as to obtain some cell networks currently accessible by the terminal device and the standards supported by each cell network. When it is found that there is a higher standard than the real-time resident standard version of the main card in the search result, the embodiment of the present application will regard the standard with the highest version in the search result as the standard to be promoted, and will set the standard of the cell network to which the standard with the highest version belongs. The community network information is shared with the main card. Therefore, the main card can perform network registration according to the cell network information, access the corresponding cell network, and camp on the corresponding target network standard.

On the one hand, since the target network standard is the highest standard in the search results and is higher than the real-time resident standard of the main card, it is possible to improve the resident standard of the main card. And can make the actual resident standard version of the main card reach the highest version actually available as much as possible. So that the terminal equipment can have strong data service capabilities. On the other hand, because the embodiment of the present application uses the network search module corresponding to the secondary card slot to perform network search operations, and after determining a suitable cell network, the cell network information will be shared with the main card. For the main card, only need to perform network registration according to the community network information, without the need for complex network search operations. Therefore, the impact on the normal business use of the main card is minimal. In addition, because the embodiment of the present application can actively use the network search module corresponding to the secondary card slot to search the network, and upgrade the standard of the main card. Therefore, by setting an appropriate trigger timing, the main card can be proactively resided in the high-version standard in time, and the time in the low-version standard network can be shortened.

The dual-card-based network system switching method provided by the embodiment of the application can be applied to a terminal device that supports dual-card standby. In this case, the terminal device is the execution body of the dual-card-based network system switching method provided by this embodiment of the application. Among them, the specific device type of the terminal device is not limited here, and can be determined according to the actual situation, for example, it can be a mobile phone, a tablet computer, a wearable device, and other devices.

In the following, taking the terminal device as a mobile phone as an example, FIG. 1A shows a schematic structural diagram of the mobile phone 100.

The mobile phone 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, Mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone jack 170D, sensor module 180, buttons 190, motor 191, indicator 192, camera 193, display screen 194, and SIM Card interface 195 and so on. The sensor module 180 can include a gyroscope sensor 180A, an acceleration sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an ambient light sensor 180E, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, and a touch sensor 180K (of course, the mobile phone 100 also Other sensors may be included, such as temperature sensors, pressure sensors, distance sensors, air pressure sensors, bone conduction sensors, etc. (not shown in the figure).

It can be understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the mobile phone 100. In other embodiments of the present application, the mobile phone 100 may include more or fewer components than those shown in the figure, or combine certain components, or split certain components, or arrange different components. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units. For example, the processor 110 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), and an image signal processor. (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing Unit (NPU) Wait. Among them, the different processing units may be independent devices or integrated in one or more processors. The controller may be the nerve center and command center of the mobile phone 100. The controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching instructions and executing instructions.

A memory may also be provided in the processor 110 to store instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory can store instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to use the instruction or data again, it can be directly called from the memory. Repeated accesses are avoided, the waiting time of the processor 110 is reduced, and the efficiency of the system is improved.

The processor 110 may run the dual-card-based network standard switching method provided by the embodiment of the present application, so as to implement the switch version upgrade of the network standard. The processor 110 may include different devices, such as when a CPU and a GPU are integrated.

The display screen 194 is used to display images, videos, and the like. The display screen 194 includes a display panel. The display panel can use liquid crystal display (LCD), organic light-emitting diode (OLED), active matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode). AMOLED, flexible light-emitting diode (FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (QLED), etc. In some embodiments, the mobile phone 100 may include one or N display screens 194, and N is a positive integer greater than one. The display screen 194 may be used to display information input by the user or information provided to the user, as well as various graphical user interfaces (GUI). For example, the display 194 may display photos, videos, web pages, or files. As another example, the display 194 may display a graphical user interface. The graphical user interface includes a status bar, a hidden navigation bar, time and weather widgets, and application icons, such as browser icons. The status bar includes the name of the operator (for example, China Mobile), mobile network (for example, 4G), time, and remaining power. The navigation bar includes a back button icon, a home button icon, and a forward button icon. In addition, it can be understood that, in some embodiments, the status bar may also include a Bluetooth icon, a Wi-Fi icon, an external device icon, and the like. It can also be understood that, in other embodiments, the graphical user interface may also include a Dock bar, and the Dock bar may include commonly used application icons and the like. When the processor detects a touch event of the user's finger (or stylus, etc.) on an application icon, in response to the touch event, it opens the user interface of the application corresponding to the application icon, and displays the application icon on the display 194. The user interface of the application.

In the embodiment of the present application, the display screen 194 may be an integrated flexible display screen, or a spliced display screen composed of two rigid screens and a flexible screen located between the two rigid screens. After the processor 110 runs the dual-card-based network standard switching method provided by the embodiment of the present application, the processor 110 may control the external audio output device to switch the output audio signal.

The camera 193 (a front camera or a rear camera, or a camera can be used as a front camera or a rear camera) is used to capture still images or videos. Generally, the camera 193 may include photosensitive elements such as a lens group and an image sensor, where the lens group includes a plurality of lenses (convex lens or concave lens) for collecting light signals reflected by the object to be photographed and transmitting the collected light signals to the image sensor . The image sensor generates an original image of the object to be photographed based on the light signal.

The internal memory 121 may be used to store computer executable program code, where the executable program code includes instructions. The processor 110 executes various functional applications and data processing of the mobile phone 100 by running instructions stored in the internal memory 121. The internal memory 121 may include a storage program area and a storage data area. Among them, the storage program area can store operating system, application program (such as camera application, WeChat application, etc.) codes and so on. The data storage area can store data created during the use of the mobile phone 100 (for example, images and videos collected by a camera application) and the like.

The internal memory 121 may also store one or more computer programs 1210 corresponding to the dual-card-based network standard switching method provided in the embodiment of the present application. The one or more computer programs 1210 are stored in the aforementioned memory 121 and configured to be executed by the one or more processors 110, and the one or more computer programs 1210 include instructions, and the aforementioned instructions can be used for execution as shown in FIG. 2 To each step in the embodiment of FIG. 3C, the computer program 1210 may include an account verification module 1211, a priority comparison module 1212. Among them, the account verification module 1211 is used to authenticate the system authentication accounts of other terminal devices in the local area network; the priority comparison module 1212 can be used to compare the priority of the audio output request service with the priority of the current output service of the audio output device. The state synchronization module 1213 can be used to synchronize the device state of the audio output device currently connected by the terminal device to other terminal devices, or synchronize the device state of the audio output device currently connected by other devices to the local. When the code of the dual-card-based network system switching method stored in the internal memory 121 is executed by the processor 110, the processor 110 may control the terminal device to process the system version and cell information.

In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like.

Of course, the code of the dual-card-based network standard switching method provided in the embodiment of the present application can also be stored in an external memory. In this case, the processor 110 can run the dual-card-based network standard switching method code stored in the external memory through the external memory interface 120, and the processor 110 can control the terminal device to process standard version and cell information.

The function of the sensor module 180 is described below.

The gyroscope sensor 180A can be used to determine the movement posture of the mobile phone 100. In some embodiments, the angular velocity of the mobile phone 100 around three axes (ie, x, y, and z axes) can be determined by the gyroscope sensor 180A. That is, the gyro sensor 180A can be used to detect the current motion state of the mobile phone 100, such as shaking or static.

When the display screen in the embodiment of the present application is a foldable screen, the gyroscope sensor 180A can be used to detect folding or unfolding operations on the display screen 194. The gyroscope sensor 180A may report the detected folding operation or unfolding operation as an event to the processor 110 to determine the folding state or unfolding state of the display screen 194.

The acceleration sensor 180B can detect the magnitude of the acceleration of the mobile phone 100 in various directions (generally three axes). That is, the gyro sensor 180A can be used to detect the current motion state of the mobile phone 100, such as shaking or static. When the display screen in the embodiment of the present application is a foldable screen, the acceleration sensor 180B can be used to detect folding or unfolding operations on the display screen 194. The acceleration sensor 180B may report the detected folding operation or unfolding operation as an event to the processor 110 to determine the folding state or unfolding state of the display screen 194.

The proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector such as a photodiode. The light emitting diode may be an infrared light emitting diode. The mobile phone emits infrared light through light-emitting diodes. Mobile phones use photodiodes to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the phone. When insufficient reflected light is detected, the mobile phone can determine that there is no object near the mobile phone. When the display screen in the embodiment of the present application is a foldable screen, the proximity light sensor 180G can be arranged on the first screen of the foldable display screen 194, and the proximity light sensor 180G can detect the first screen according to the optical path difference of the infrared signal. The size of the folding or unfolding angle between the screen and the second screen.

The gyroscope sensor 180A (or the acceleration sensor 180B) may send the detected motion state information (such as angular velocity) to the processor 110. The processor 110 determines whether it is currently in the hand-held state or the tripod state based on the motion state information (for example, when the angular velocity is not 0, it means that the mobile phone 100 is in the hand-held state).

The fingerprint sensor 180H is used to collect fingerprints. The mobile phone 100 can use the collected fingerprint characteristics to implement fingerprint unlocking, access application locks, fingerprint photographs, fingerprint answering calls, and so on.

Touch sensor 180K, also called "touch panel". The touch sensor 180K may be disposed on the display screen 194, and the touch screen is composed of the touch sensor 180K and the display screen 194, which is also called a “touch screen”. The touch sensor 180K is used to detect touch operations acting on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. The visual output related to the touch operation can be provided through the display screen 194. In other embodiments, the touch sensor 180K may also be disposed on the surface of the mobile phone 100, which is different from the position of the display screen 194.

Exemplarily, the display screen 194 of the mobile phone 100 displays a main interface, and the main interface includes icons of multiple applications (such as a camera application, a WeChat application, etc.). The user clicks the icon of the camera application in the main interface through the touch sensor 180K, triggers the processor 110 to start the camera application, and turns on the camera 193. The display screen 194 displays an interface of the camera application, such as a viewfinder interface.

The wireless communication function of the mobile phone 100 can be realized by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modem processor, and the baseband processor.

The antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the mobile phone 100 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna can be used in combination with a tuning switch.

The mobile communication module 150 can provide a wireless communication solution including 2G/3G/4G/5G and the like applied on the mobile phone 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like. The mobile communication module 150 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic waves for radiation via the antenna 1. In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110. In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be provided in the same device. In the embodiment of the present application, the mobile communication module 150 may also be used to exchange information with other terminal devices.

The modem processor may include a modulator and a demodulator. Among them, the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays an image or video through the display screen 194. In some embodiments, the modem processor may be an independent device. In other embodiments, the modem processor may be independent of the processor 110 and be provided in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide applications on the mobile phone 100 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), and global navigation satellite systems. (global navigation satellite system, GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be sent from the processor 110, perform frequency modulation, amplify, and convert it into electromagnetic waves to radiate through the antenna 2. In the embodiment of the present application, the wireless communication module 160 may be used to access an access point device, and send and receive messages to other terminal devices.

In some embodiments, the antenna 1 of the mobile phone 100 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the mobile phone 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, 5G NR, and/or IR technology, etc. The GNSS may include the global positioning system (GPS), the global navigation satellite system (GLONSAS), the Beidou navigation satellite system (BDS), and the quasi-zenith satellite system (quasi). -zenith satellite system, QZSS) and/or satellite-based augmentation systems (SBAS).

In addition, the mobile phone 100 can implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. For example, music playback, recording, etc. The mobile phone 100 can receive the key 190 input, and generate key signal input related to the user settings and function control of the mobile phone 100. The mobile phone 100 can use the motor 191 to generate a vibration notification (for example, an incoming call vibration notification). The indicator 192 in the mobile phone 100 can be an indicator light, which can be used to indicate the charging status, power change, and can also be used to indicate messages, missed calls, notifications, and so on. The SIM card interface 195 in the mobile phone 100 is used to connect to the SIM card. The SIM card can be connected to and separated from the mobile phone 100 by inserting into the SIM card interface 195 or pulling out from the SIM card interface 195.

It should be understood that in practical applications, the mobile phone 100 may include more or less components than those shown in FIG. 1A, which is not limited in the embodiment of the present application. The illustrated mobile phone 100 is only an example, and the mobile phone 100 may have more or fewer parts than shown in the figure, may combine two or more parts, or may have a different part configuration. The various components shown in the figure may be implemented in hardware, software, or a combination of hardware and software including one or more signal processing and/or application specific integrated circuits.

The software system of the terminal device can adopt a layered architecture, event-driven architecture, micro-core architecture, micro-service architecture, or cloud architecture. The embodiment of the present invention takes an Android system with a layered architecture as an example to exemplarily illustrate the software structure of a terminal device. Fig. 1B is a software structure block diagram of a terminal device according to an embodiment of the present invention.

The layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Communication between layers through software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, the application layer, the application framework layer, the Android runtime and system library, and the kernel layer.

The application layer can include a series of application packages.

As shown in Figure 1B, the application package may include applications such as phone, camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, short message, etc.

The application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer. The application framework layer includes some predefined functions.

As shown in Figure 1B, the application framework layer may include a window manager, a content provider, a view system, a phone manager, a resource manager, a notification manager, and so on.

The window manager is used to manage window programs. The window manager can obtain the size of the display screen, determine whether there is a status bar, lock the screen, take a screenshot, etc.

The content provider is used to store and retrieve data and make these data accessible to applications. The data may include videos, images, audios, phone calls made and received, browsing history and bookmarks, phone book, etc.

The view system includes visual controls, such as controls that display text, controls that display pictures, and so on. The view system can be used to build applications. The display interface can be composed of one or more views. For example, a display interface that includes a short message notification icon may include a view that displays text and a view that displays pictures.

The telephone manager is used to provide the communication function of the terminal device. For example, the management of the call status (including connecting, hanging up, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.

The notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages, and it can automatically disappear after a short stay without user interaction. For example, the notification manager is used to notify download completion, message reminders, and so on. The notification manager can also be a notification that appears in the status bar at the top of the system in the form of a chart or a scroll bar text, such as a notification of an application running in the background, or a notification that appears on the screen in the form of a dialog window. For example, prompt text messages in the status bar, sound a prompt tone, terminal equipment vibration, flashing indicator lights, etc.

Android Runtime includes core libraries and virtual machines. Android runtime is responsible for the scheduling and management of the Android system.

The core library consists of two parts: one part is the function functions that the java language needs to call, and the other part is the core library of Android.

The application layer and application framework layer run in a virtual machine. The virtual machine executes the java files of the application layer and the application framework layer as binary files. The virtual machine is used to perform functions such as object life cycle management, stack management, thread management, security and exception management, and garbage collection.

The system library can include multiple functional modules. For example: surface manager (surface manager), media library (media libraries), 3D graphics processing library (for example: OpenGL ES), 2D graphics engine (for example: SGL), etc.

The surface manager is used to manage the display subsystem and provides a combination of 2D and 3D layers for multiple applications.

The media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files. The media library can support a variety of audio and video encoding formats, such as: MPEG4, H.164, MP3, AAC, AMR, JPG, PNG, etc.

The 3D graphics processing library is used to implement 3D graphics drawing, image rendering, synthesis, and layer processing.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is the layer between hardware and software. The kernel layer contains at least display driver, camera driver, audio driver, and sensor driver.

In the following, the working process of the software and hardware of the mobile phone 100 will be exemplified in conjunction with the scenario where the mobile phone 100 is switched based on the dual-card network system.

When the processor 110 detects that the user identification card format needs to be upgraded, the corresponding hardware interrupt is sent to the kernel layer. The kernel layer is processed into system switching events, and the system switching events are stored in the kernel layer. The kernel layer drives the mobile communication module to search the network according to the standard switching event, and realizes the screening and switching of the standard according to the search results.

In order to illustrate the technical solutions described in the present application, specific embodiments are used for description below.

FIG. 2 shows the implementation flowchart of the dual-card-based network standard switching method provided in Embodiment 1 of the present application, and the details are as follows:

In S200, if a preset trigger condition is detected, S201 is executed.

The embodiment of the application does not limit the trigger conditions for the promotion of the specific main card resident standard version too much, and can be set by the technicians according to actual needs. For example, it can be triggered periodically or manually by the user. At this time, the trigger condition is that the set time is reached or the user's trigger instruction is detected.

Considering that the actual application scenarios encountered by the terminal device in the actual situation may be diverse and complex. Among these different scenarios, there are some scenarios where the main card needs to be upgraded to a higher version standard in time. Therefore, by setting certain trigger conditions, it is possible to effectively identify and respond to these scenarios in a timely manner, so that the terminal device can effectively improve service processing capabilities in a timely manner. Several optional embodiments are provided below to deal with several possible scenarios and trigger conditions corresponding to the scenarios as examples:

1. For scenarios where users have active needs. In the embodiment of the present application, the corresponding system enhancement function may be set in the terminal device. At this time, the trigger condition is that the user initiates the system enhancement function. That is, when it is detected that the user has activated the system enhancement function, S201 in the embodiment of the present application will be activated.

Among them, the standard enhancement function may be a specific new function, or may include some original functions in the terminal device. For example, it is possible to set the functions that originally trigger the re-search of the network, such as the device restart function, the flight mode function, and the device power-on function, to the above-mentioned standard enhancement function. At this time, the corresponding trigger condition is that the device is turned on or the flight mode is turned off.

2. A scenario where the main card performs a cell network handover. For example, a large physical displacement of the terminal device causes the terminal device to leave the cell, and the main card needs to perform cell network handover, or other factors cause the main card cell network handover, which causes the corresponding cell information to change. At this time, a change in cell information can be used as a trigger condition.

3. For users moving to areas with weak signal strength (such as garages, underground shopping malls and indoors), or scenes where the signal becomes weak due to the influence of obstructions. At this time, the embodiment of the present application will detect the change of the signal quality of the main card of the terminal device, and use the signal quality lower than the preset threshold as the trigger condition. If it is detected that the signal quality is lower than the preset threshold, S201 in the embodiment of the present application will be activated. The method for evaluating signal quality is not limited here, and can be set by the technicians themselves. For example, reference signal receiving power (RSRP) can be used as a reference indicator of signal quality. At the same time, the specific size of the preset threshold can be set by a technician according to actual needs, and is not limited here. At this time, a rapid rise in the standard can be achieved.

4. For terminal equipment, there is a scenario where the standard has fallen. For example, when the terminal device does not support high-definition voice calls (voice over LTE, VoLTE), the standard of the terminal device will fall back to 2G or 3G every time a user makes a call. When the user finishes the call, the terminal device will search the main card again to return to the higher version standard. For another example, a user walks into an area with poor signal quality, which causes the terminal device to switch to a network with a lower version standard. In view of this situation, the embodiment of the present application detects whether the terminal device has a mode fall, and if it occurs, the condition of the mode rise is used as the trigger condition of the embodiment of the present application to start S201. For example, for the case where VoLTE is not supported, the trigger condition is set as: the system falls back due to the voice service, and the voice service ends. At this time, when the voice service is ended, S201 is started. At this time, in the case of a fall in the standard, a rapid rise in the standard can be achieved.

5. Taking into account the actual situation, even if the user does not have a large physical displacement, the network signal quality has not significantly decreased. It is also possible that the main card resident standard version is low, and the version needs to be upgraded. In order to cope with this situation, a timing trigger task will be set in the embodiment of the present application. That is, the timer will trigger the operation of S201 at a preset time interval or time point. At this time, the trigger condition is that the fixed time reaches the preset trigger time point, or the timer triggers the timing trigger task of the system upgrade.

6. For some scenarios with remote assistance requirements, for example, it is hoped to provide some remote system switching functions for technicians, so that the technicians can remotely assist users in upgrading the standard of terminal equipment. The trigger condition at this time is that the preset trigger instruction is received. The trigger instruction may be an instruction sent by other users or technicians through other devices to assist the user's terminal equipment in upgrading the standard.

It can be seen from the above description that for different actual scenarios, one or more different trigger conditions can be set to meet the requirements of the actual scenario. Therefore, the embodiment of the present application does not excessively limit the content of the specific trigger condition, and can be set by a technician according to actual needs. It can be a single trigger condition corresponding to the above 6 scenarios, or it can include multiple conditions at the same time, or it can include other conditions designed by technicians.

As an optional embodiment of the present application, all the trigger conditions corresponding to the above 6 scenarios can be set as the trigger conditions of the present embodiment. At this time, the embodiments of the present application can at least cope with the actual requirements of the above 6 scenarios, thereby achieving rapid improvement of the main card standard version in different scenarios, achieving compatible processing of requirements of different scenarios, and having stronger compatibility.

S201: Acquire the number of user identification cards in the terminal device, the first network standard that the main card resides in real time, and the second network standard that the main card slot supports.

Considering the actual situation, one SIM card or two SIM cards may actually be inserted in the terminal device. For the case where only one SIM card is inserted, the inserted SIM card will be processed as the main card at this time, and the main card can perform data services and call services. Since there is no secondary card at this time, it is also impossible to refer to the standard situation of the secondary card. Therefore, the number of SIM cards inserted in the terminal device will be recognized.

Among them, for the case where two SIM cards are inserted. Due to different terminal equipment conditions in practical applications, there may also be some differences in the method of distinguishing between the main card and the secondary card, which needs to be determined according to the actual situation. For example, some terminal devices distinguish between the main card slot and the secondary card slot when setting the physical card slot. At this time, the one inserted into the main card slot is the primary card, and the one inserted into the secondary card slot is the secondary card. There are also some terminal devices that do not distinguish between the primary and secondary card slots, but the user can manually select one of the two SIM cards as the primary card and the other as the secondary card. At this time, the card slot where the main card is located is the main card slot, and the card slot where the auxiliary card is located is the auxiliary card slot.

In addition, the embodiment of the present application will obtain the network standard (ie, the second network standard) actually supported by the main card slot, and determine the standard with the highest version among them. At the same time, the current resident system of the main card (that is, the first network system) is obtained, and the version is compared with the second network system to determine whether the system needs to be upgraded.

S202: If the number is 1, and the version of the first network standard is lower than the version of the second network standard, use the network search module corresponding to the secondary card slot to perform network search to obtain at least one first cell network and each first cell network Supported third network standard.

When there is only one SIM card, and the network standard version does not reach the highest version supported by the main card slot, it means that theoretically the terminal device main card can also reside in a higher version standard. Therefore, if the main card can be switched to a higher version standard at this time, the terminal device can obtain stronger data service capabilities.

In order to achieve the improvement of the main card resident standard version, this embodiment of the application will use the network search module corresponding to the secondary card slot to perform a network search to determine all the cell networks (ie, the first cell network) that the main card can access, and The standard supported by each cell network (that is, the third network standard). Among them, the embodiment of the present application does not excessively limit the specific network search operation, which can be determined by the technician according to the actual situation.

As an embodiment of the present application, considering that the secondary card slot may actually search for more cell networks, which may include multiple networks of different operators. In practical applications, the main card can generally only be registered in the network of the operator to which it belongs. For example, assuming that the primary card operator is operator A, the secondary card slot may actually search for the cell networks of operator A, operator B, and operator C at the same time. At this time, the main card can only be registered and used in the cell network of operator A. Therefore, the embodiment of the present application will match the actual operator of the cell network when performing cell network search and system determination. And only the cell network of the operator to which the main card belongs is treated as the first cell network in the embodiment of the present application.

As an optional embodiment of the present application, if the highest network standard supported by the main card in the terminal device is 5G, and it supports NSA and SA dual-mode. In order to find the 5G standard, when performing a network search, the new radio (NR) cell in the SA mode is preferentially searched. At the same time, when searching for the NSA traced cell, read the SIB2 system message in the cell information. If it is read that the SIB2 system message contains the ULI indication, it is determined that the cell supports NSA, that is, it is determined that the cell supports the 5G standard.

As an optional embodiment of the present application, in the network search process, the search for frequency points will be limited to search for the recorded historical frequency points, so as to improve the efficiency of the search.

S203: If there is a network standard with a higher version than the first network standard in the third network standard, the target network standard with the highest version is selected from the third network standard, and the first cell network of the first cell network to which the target network standard belongs is obtained. A cell information, network registration of the main card based on the first cell information, so that the main card resides in the target network standard.

If there is a higher standard than the current resident standard version of the main card in the searched standard, it means that theoretically the terminal device main card can also be resident in a higher version standard. Therefore, the embodiment of the present application will further filter out the system with the highest version among the searched systems as the target network system. For example, suppose that the searched standards include 2G, 3G, 4G, and 5G, and the current resident standard of the main card is 3G. Since the 4G and 5G versions are both higher than 3G, at this time, the 5G standard with the highest version will be selected from 2G, 3G, 4G and 5G in this embodiment of the application, and 5G will be used as the target network standard in this application embodiment.

After the target network standard is determined, the embodiment of the present application also determines the cell network to which the target network standard belongs, so as to determine the network to which the master card needs to register and access. For example, assume that cell network a, cell network b, and cell network c, and the three cell networks are all operator networks of the main card. Among them, the cell network a supports 3G, the cell network b supports 4G, and the cell network c supports 5G. At this time, the cell network c corresponding to 5G is the network that the master card needs to register and access. At the same time, in order to enable the main card to quickly access the cell network, in this embodiment of the application, the cell information of the cell network to which the target network standard belongs is shared with the main card. At this time, the main card can quickly register to the cell network according to the cell information. Realize network access and standard switching. In the embodiment of the present application, the specific information content of the cell information is not too limited here, and can be selected and set by a technician according to actual cell network registration requirements. For example, in some embodiments, the cell information may include the frequency point and physical cell identity of the cell.

The target network standard version is higher than the standard that the main card currently resides in, so switching to the target network standard can improve the main card standard, thereby enhancing the data service capabilities of the terminal equipment. Since the network search module corresponding to the secondary card slot is performing network search, the network search process will not interfere with the normal business of the main card. At the same time, the cell information of the selected cell network is shared with the main card, so that the main card can quickly register and access the network. Therefore, the impact of the entire network search and network access process on the main card business is minimized, and the normal use of the terminal equipment by the user is guaranteed. Finally, since one or more trigger mechanisms can be set according to actual needs, the embodiment of the present application can actively reside the main card in the high version standard in time, which can shorten the time in the low version standard network.

S204: If the number is 2 and the version of the first network standard is lower than the version of the second network standard, acquire the fourth network standard that the secondary card resides in real time, and the first operator of the primary card and the second network standard of the secondary card. Operator.

When there are two SIM cards, and the main card network standard version has not reached the highest version supported by the main card slot, it means that theoretically the terminal device main card can also reside in a higher version standard. Therefore, if the main card can be switched to a higher version standard at this time, the terminal device can obtain stronger data service capabilities.

In order to improve the resident standard version of the main card, the embodiment of the present application will use the secondary card or the network search module corresponding to the secondary card slot to realize the determination of the high-version standard. Specifically, when the operator of the secondary card and the primary card are the same, it indicates the cell network where the secondary card is registered, and the primary card can also be registered to the network theoretically. Therefore, if the standard version of the secondary card resides (that is, the fourth network standard) is higher than the primary card resides standard at this time, the cell information registered by the secondary card can be used to assist the primary card to quickly register, so as to realize the standard version of the primary card. promote. At this time, network search may not be performed, thereby avoiding as much as possible the impact on the normal use of the terminal device by the user, and at the same time increasing the speed of the system upgrade. Based on this principle, in the embodiment of the present application, in S204, the current mode of the secondary card and the operators of the primary card and the secondary card will be further obtained.

S205: If the first operator and the second operator are the same, and the fourth network standard is the same as the second network standard version, acquire the second cell information of the second cell network that the secondary card accesses in real time, and based on the second cell The information performs network registration on the main card so that the main card resides in the fourth network standard.

When the operator of the main card and the auxiliary card is the same, and the current standard version of the auxiliary card is equal to the highest version supported by the main card, it means that the main card can only upgrade the standard version to the current standard version of the auxiliary card. Therefore, at this time, the embodiment of the application will obtain the cell information of the cell network that the secondary card accesses in real time (that is, the second cell information of the second cell network), and share the cell information with the primary card, so that the primary card can be in the cell network Sign up quickly. And then quickly raise the standard version to the highest.

S206: If the first operator and the second operator are the same, and the version of the fourth network standard is lower than the version of the second network standard, use the network search module corresponding to the secondary card slot to perform network search to obtain at least one first cell The third network standard supported by the network and each first cell network. And execute S203.

When the operator of the main card and the auxiliary card is the same, and the current standard version of the auxiliary card is lower than the highest version supported by the main card slot, regardless of whether the current standard version of the auxiliary card is higher than the current standard version of the main card, It is impossible to increase the standard version of the primary card to the highest level through the real-time access to the community network through the secondary card. For example, suppose that the current standard version of the main card is 3G, the highest supported standard version is 5G, and the current standard version of the secondary card is 4G. At this time, even if the real-time access to the cell information of the secondary card is used to help the primary card register and access the network, the primary card standard version can only be upgraded to 4G. However, in actual situations, there may also be a 5G network supported by the main card in the cell network around the terminal device. Therefore, at this time, it is impossible to achieve the goal of improving the main card standard version as much as possible.

Therefore, when the current standard version of the secondary card is lower than the highest version supported by the main card slot, the embodiment of the application does not need to care about the level of the current standard version of the secondary card and the current standard version of the main card, but will Use the network search module corresponding to the secondary card slot to perform network search to maximize the resident standard version of the main card. For specific network search operations and network registration operations, please refer to the relevant descriptions of S202 and S203, which will not be repeated here.

S207: If the first operator and the second operator are not the same, use the network search module corresponding to the secondary card slot to perform network search to obtain at least one first cell network and a third network standard supported by each first cell network. And execute S203.

When the operators of the primary card and the secondary card are different, it means that the primary card cannot register to access the community network that the secondary card accesses in real time. That is, regardless of the current standard version of the secondary card, it has lost its reference significance, and it is similar to the situation where only one SIM card is inserted. Therefore, the embodiment of the present application will use the network search module corresponding to the secondary card slot to perform network search at this time, so as to maximize the resident standard version of the main card. For specific network search operations and network registration operations, please refer to the relevant descriptions of S202 and S203, which will not be repeated here.

As an optional embodiment of the present application, it is considered that the terminal device may be a dual-card dual-standby single-pass device in an actual situation. At this time, the main card slot and the secondary card slot share the baseband and radio frequency unit when performing business processing, so the network search module of the secondary card slot may have a certain impact on the normal business of the primary card when it performs network search. Therefore, in order to reduce this impact as much as possible and ensure the normal operation of the main card business, in this embodiment of the application, the network search module corresponding to the secondary card slot performs network search operations and performs network registration operations on the main card based on cell information. Both will be performed when the main card is in the idle state. That is, the main card does not perform network search and registration when the data service or voice service is not performed. At this time, the user can use the main card service normally without perceiving the system switching process of the main card in the embodiment of the present application.

As an optional embodiment of the present application, when the terminal device searches on the network, the search efficiency and effect can be improved according to the recorded historical frequency points. Therefore, in order to further improve the search capability of the network search for the high version standard, in the embodiment of this application, each time the master card successfully registers the high version standard cell network, the frequency point information and the physical cell identifier of the high version standard will be Recorded to historical frequency points. After that, the terminal device can quickly search for the recorded high-version format based on the historical frequency. For example, suppose that the 5G frequency point information and the physical cell identifier are recorded in the historical frequency points. Afterwards, when performing network searches, the network search can be performed based on the historical frequency points first, thereby improving the search capability for 5G frequency points.

Specifically, when the required recording standard is the 5G standard, the recording of historical frequency points includes:

Under the NSA network, read the SIB2 information of the main card registered cell, and record the long term evolution (LTE) frequency points that support NSA and the physical cell identifier of the main card registered cell to the historical frequency point of the main card middle.

Under SA networking, read the NR system message of the registered cell of the main card, and add the NR frequency point information to the historical frequency point.

As an optional embodiment of the present application, in the case where frequency point data of multiple standards are recorded in the historical frequency points, the frequency point data may be prioritized according to the level of the standard version. Among them, the higher the version, the higher the priority, that is, the frequency point of the system with the higher version is set as the high-level priority. In this way, in the process of network search, it is possible to perform network search on higher version standards first according to the priority level, thereby improving the search capability and efficiency.

As an optional embodiment of the present application, after the main card completes the registration and resides in the higher version standard, the network search module of the secondary card slot will stop the network search. Thereby, the voice service capability of the secondary card is restored.

In the embodiment of the present application, one or more trigger conditions are firstly set to implement effective responses to various actual scenarios, which in turn can shorten the time in a low-version standard network. When the trigger condition is detected, the number of SIM cards inserted into the terminal device, the resident mode of the main card, and the highest mode supported in the terminal device will be turned on. Then determine the specific network search strategy according to the number of SIMs and the main card system. If there are two SIM cards with the same operator, and the standard version of the secondary card resides in the highest standard version supported by the primary card, the cell information of the secondary card is shared with the primary card so that the primary card can quickly perform high-standard Network registration. In other cases, the network search module of the secondary card slot performs network search. Then the system is screened according to the network search situation, and the community information corresponding to the highest version standard available is shared to the main card, so that the main card can quickly register for the high-standard network. For the main card, the entire system switching process only needs to perform network registration based on the community network information, without the need for complex network search operations, and it can be upgraded to the highest version standard currently available. Therefore, the impact on the normal business use of the main card is minimal. In addition, because the embodiment of the present application can actively use the network search module corresponding to the secondary card slot to search the network, and upgrade the standard of the main card.

When applied in combination with 5G, due to the network selection strategy and network search time limitations in the prior art, the main card may not be able to select the highest standard cell, the anchor cell cannot be selected under the NSA network, and the anchor cell cannot be selected under the SA network. To the NR cell. By combining the embodiments of the present application, when the secondary card slot can search for a cell network supporting the 5G standard, the primary card can be quickly registered to access the 5G cell network. This in turn enables users to stay in the 5G cell network for a longer period of time, to achieve the improvement of data service capabilities, and to improve the user's experience of 5G services.

Taking into account the actual application, the terminal device may not distinguish between the main card slot and the auxiliary card slot, nor does it distinguish between the main card and the auxiliary card, that is, both card slots have data service and voice service capabilities. At this time, the card slots can be named the first card slot and the second card slot, and the SIM card inserted in the first card slot is called the first SIM card, and the SIM card inserted in the second card slot is called the second SIM. Card. In theory, as long as there is a SIM that can be used normally, the normal use of the terminal equipment by the user can be guaranteed. Therefore, when the SIM card resident standard version is low, a corresponding standard upgrade strategy is also needed to improve the SIM card resident standard version to improve the data service capability of the terminal device.

3A, 3B, and 3C show the implementation flowchart of the dual-card-based network standard switching method provided in the second embodiment of the present application, and the details are as follows:

In S300, if a preset trigger condition is detected, S301 is executed.

S300 is basically the same as S200, so for the principle, operation and effect description of the trigger condition, please refer to the description of S200. Among them, the difference from S200 is that there is no distinction between primary and secondary cards in the embodiment of this application. Therefore, in the description of S200, the primary card can be replaced with any SIM card.

S301: Detect a user identification card contained in the terminal device.

Considering the actual situation, one SIM card or two SIM cards may actually be inserted in the terminal device. For the case where only one SIM card is inserted, the inserted SIM card will be processed as a business use card at this time, and the SIM card can perform data services and call services. Since there is no other SIM card at this time, it is also impossible to refer to the standard situation of another SIM card. Therefore, the actual situation of the SIM card inserted in the terminal device will be recognized.

S302: If only one user identification card is included, acquire the fifth network standard that the user identification card resides in real time, and the sixth network standard that the slot to which the user identification card belongs to supports the highest.

When there is only one SIM card in the terminal device, the embodiment of the application will obtain the network standard (that is, the fifth network standard) that the SIM card resides in real time, and the highest network standard supported by the card slot to which the SIM card belongs (that is, the sixth network Standard). For example, assuming that the SIM card is the first SIM card, the network standard that the first SIM card resides in real time and the network standard supported by the first card slot will be acquired at this time.

S303: If the version of the fifth network standard is lower than the version of the sixth network standard, use the network search module corresponding to the card slot not inserted into the user identification card to perform network search to obtain at least one third cell network and each third cell network The seventh network standard supported.

If the current network standard version of the inserted SIM card does not reach the highest version supported by the card slot to which it belongs, it means that in theory the SIM card can also reside in a higher version standard. Therefore, if the SIM card can be switched to a higher version standard at this time, the terminal device can obtain stronger data service capabilities.

S304: If there is a network standard with a higher version than the fifth network standard in the seventh network standard, the first target standard with the highest version is selected from the seventh network standard, and the third cell network to which the first target standard belongs is obtained Based on the third cell information of the third cell, network registration is performed on the included user identification card, so that the user identification card resides in the first target standard.

The principles, operation details, and effects of S303 and S304 are basically the same as those of S202 and S203. Therefore, reference may be made to the relevant description of S202 and S203, which will not be repeated here. The difference from S202 and S203 is that the embodiment of this application does not have a main card, so the concept of the main card in S202 and S203 needs to be replaced with the SIM card actually inserted in the embodiment of this application. The inserted SIM card may be either the first SIM card or the second SIM card, depending on the actual situation.

S305: If two user identification cards are included, obtain the network standard that each user identification card resides in real time, and the highest network standard supported by the card slot to which each user identification card belongs.

Corresponding to S302, two SIM cards may also be inserted in the terminal device at the same time. At this time, it is necessary to identify whether each SIM card needs to be upgraded. Therefore, the embodiment of the present application will obtain the current standard of each SIM card and the highest supported standard of the card slot to which each SIM card belongs. At the same time, according to the version relationship between the current residence and the highest supported standard, it can be divided into the following situations:

1. The current resident standard of the two SIM cards is equal to the highest supported standard corresponding to its own card slot. For example, suppose that the highest supported standard of the first card slot is 5G, and the highest supported standard of the second card slot is 4G. At the same time, the current resident mode of the first SIM card is 5G, and the current resident mode of the second SIM card is 4G. This is case 1.

In case 1, since the two SIM cards can no longer upgrade the standard version, there is no need to switch the standard at this time.

2. The current resident standards of the two SIM cards are lower than the highest supported standards corresponding to their own card slots. For example, suppose that the highest supported standard of the first card slot is 5G, and the highest supported standard of the second card slot is 4G. At the same time, the current resident mode of the first SIM card is 4G, and the current resident mode of the second SIM card is 3G. This is case 2.

For case 2, it means that both SIM cards can further improve the standard version. In actual situations, it can be handed over to the network search module of the card slot to which each SIM card belongs to realize the respective network search and standard upgrade. However, in actual applications, users are most likely to use one or two SIM cards for data services or voice services. Therefore, this will cause the user to be unable to use the terminal device normally. In order to solve this problem, the embodiment of the application will distinguish between the SIM cards according to the actual service status of the two SIM cards, and use the network search module of the slot of the SIM card in the idle state to perform network search, and assist the connected state SIM card standard upgrade. For details, please refer to S306 and related steps.

3. Among the two SIM cards, the current resident standard of one SIM card is lower than the highest supported standard corresponding to its own card slot, and the current resident standard of the other SIM card is the same as the highest supported standard corresponding to its own card slot. For example, suppose that the highest supported standard of the first card slot is 5G, and the highest supported standard of the second card slot is 4G. At the same time, the current resident mode of the first SIM card is 4G, and the current resident mode of the second SIM card is 4G. This is case 3.

For case 3, the embodiment of this application refers to the SIM card whose real-time resident network standard version is lower than the highest supported network standard version of its own card slot as the third target card, and the real-time resident network standard and its own card The SIM card with the same network standard version supported by the slot is called the fourth target card. At this point, it shows that the third target card can further improve the standard version. In actual situations, it can be handed over to the network search module of the card slot to which the third target card belongs to realize the network search and standard upgrade of the third target card. However, in practical applications, this will cause the third target card to fail to process services normally. When the third target card is used for data service or voice service processing, this will cause the user to be unable to use the terminal device normally. In order to solve this problem, this embodiment of the application will determine whether the third target card needs to be upgraded based on the current resident standards of the two SIM cards, the highest supported standards of the two card slots, and the operators of the two SIM cards. And the specific ways to improve. For details, please refer to S312 and related steps.

The description of case 2 is as follows:

S306: If the real-time resident network standard versions of the two user identification cards are lower than the highest supported network standard version of the respective card slots, the service status of the two user identification cards is acquired.

In the embodiment of the present application, the service state of the SIM card is divided into two types: an idle state and a connected state. Among them, the idle state means that the SIM card is not currently performing data services or voice services. The connected state refers to one or more of the data services and voice services currently being performed by the SIM card. Since the two SIM cards in the embodiment of this application can perform data services at the same time, the service status of the two SIM cards includes the following possibilities:

a. Both SIM cards are in idle state.

b. Both SIM cards are in a connected state.

c. Among the two SIM cards, one SIM card is in the connected state and the other is in the idle state.

In case a, since the two SIM cards are in an idle state, in theory, even if the network search model corresponding to the card slot of the card slot is used for network search and standard switching, it will not affect the normal use of the user. On this basis, as an optional embodiment of the present application, it can be handed over to the network search module of the card slot to which each SIM card belongs to realize the respective network search and standard improvement. As another optional embodiment of the present application, in order to prevent the two SIM cards from being upgraded at the same time, the terminal device cannot be used for a period of time. In the embodiment of the present application, the timing of the system upgrade of the two SIM cards can be staggered, that is, the system upgrade of one of the SIM cards is performed first, and the system upgrade operation of the other SIM card is performed after the system upgrade is completed. At this time, no matter what time period, the terminal device has at least one SIM card that can be used, that is, the terminal device can be used normally.

For case b, all being in the connected state means that the user needs to use two SIM card services at the same time. Therefore, as an embodiment of the present application, in case b, it is possible to wait for the service status of the two SIM cards to change. When both SIM cards become idle, it can be processed according to the situation a. When only one SIM card becomes idle, it can be processed according to case c.

For case c, in order to minimize the impact on the user's normal use of the terminal device. The embodiment of the present application will use the network search module of the idle SIM card slot to assist the connected SIM card to upgrade the standard, so as to improve the service processing capability of the terminal device. This allows users to use higher-standard networks for business processing. For details, please refer to S307 and related steps.

S307: If one of the two user identification cards has a user identification card in a connected state and the other user identification card has a service state in an idle state, the user identification card in the connected state is used as the first target card, and it will be idle The user identification card in the state is used as the second target card, the network standard in which the first target card resides in real time is regarded as the eighth network standard, the network standard supported by the card slot to which the first target card belongs is the ninth network standard, and the second target card The real-time resident network standard is used as the tenth network standard, and the third operator of the first target card and the fourth operator of the second target card are acquired.

Specifically, when the operators of the two SIM cards are the same, it means that the cell network where the idle SIM card is registered, and the connected SIM card can theoretically also be registered to the network. Therefore, if the standard version (that is, the tenth network standard) of the idle SIM card staying is higher than the connected SIM card staying standard at this time, the cell information registered by the idle SIM card can be used to assist the fast registration of the connected SIM card. In this way, the standard version of the connected SIM card is improved. At this time, network search may not be performed, thereby avoiding as much as possible the impact on the normal use of the terminal device by the user, and at the same time increasing the speed of the system upgrade. Based on this principle, in the embodiment of the present application, in S307, the current mode of the SIM card in the idle state and the information of the operators of the two SIM cards will be further obtained.

S308: If the third operator and the fourth operator are the same, and the tenth network standard is the same as the ninth network standard version, obtain the fourth cell information of the fourth cell network that the second target card accesses in real time, and based on the first The four-cell information performs network registration on the first target card, so that the first target card resides in the tenth network standard.

When two SIM cards have the same operator, and the current standard version of the idle SIM card is equal to the highest version supported by the connected SIM card (ie the ninth network standard), it means that the connected SIM card can only change the standard version Upgrade to the standard version where the SIM card currently resides in the idle state. Therefore, at this time, the embodiment of the application will obtain the cell information of the cell network that the idle SIM card accesses in real time (that is, the fourth cell information of the fourth cell network), and share the cell information with the connected SIM card, so that the connected SIM card The card can be quickly registered in the cell network. And then quickly raise the standard version to the highest.

S309: If the third operator and the fourth operator are the same, and the version of the tenth network standard is lower than the version of the ninth network standard, use the network search module corresponding to the card slot to which the second target card belongs to perform network search, and obtain at least A fifth cell network and the eleventh network standard supported by each fifth cell network.

S310: If there is a network standard with a version higher than the eighth network standard in the eleventh network standard, filter out the second target network standard with the highest version from the eleventh network standard, and obtain the second target network standard to which the second target network standard belongs The fifth cell information of the fifth cell network performs network registration on the first target card based on the fifth cell information, so that the first target card resides in the second target network standard.

When the two SIM cards have the same operator, and the current standard version of the idle SIM card is lower than the highest version supported by the connected SIM card, no matter whether the current standard version of the idle SIM card is higher than the connected SIM card The current resident standard version (that is, the eighth network standard) cannot increase the connected SIM card standard version to the highest level by real-time access to the cell network through the idle SIM card. Therefore, when the current standard version of the idle SIM card is lower than the highest version supported by the connected SIM card slot, this embodiment of the application does not need to care about the current standard version of the idle SIM card and the connected SIM card. Instead, the network search module corresponding to the idle SIM card slot will be used to search the network to maximize the resident standard version of the connected SIM card. For specific network search operations and network registration operations, please refer to the relevant descriptions of S202 and S203, which will not be repeated here.

S311: If the third operator and the fourth operator are not the same, use the network search module corresponding to the card slot to which the second target card belongs to perform a network search to obtain at least one fifth cell network and the tenth supported by each fifth cell network. A network standard. And step S310 is executed.

When the operators of the two SIM cards are different, it means that the connected SIM card cannot register to access the cell network that the idle SIM card accesses in real time. That is, regardless of the current standard version of the SIM card in the idle state, it has lost its reference meaning, and it is similar to the situation where only one SIM card is inserted. Therefore, the embodiment of the present application will use the network search module corresponding to the idle SIM card slot to perform network search at this time, so as to maximize the resident standard version of the connected SIM card. For specific network search operations and network registration operations, please refer to the relevant descriptions of S202 and S203, which will not be repeated here.

In the embodiment of this application, for the case that the network standard versions of the two SIM cards that reside in real time are both lower than the highest supported network standard version of the respective card slots, the appropriate standard switching strategy is selected according to the actual service status of the SIM cards . For the connected SIM card, priority is given to ensuring its actual business processing, and the network search module of the idle SIM card slot performs network search and assists the connected SIM card to upgrade the standard version. In the case where both are in the idle state, you can choose to stagger the timing of the standard version upgrade, so that the normal business of the terminal device will not be greatly affected. Therefore, the embodiments of the present application can ensure the normal use of terminal equipment services by users to the greatest extent and reduce the impact on the normal service use of terminal equipment, and realize timely and effective upgrades to the standard version of the SIM card.

The description of case 3 is as follows:

S312, if there are two user identification cards, there is a third target card whose real-time resident eleventh network standard version is lower than the twelfth network standard version supported by the card slot to which it belongs, and the tenth real-time resident card For the fourth target card with the same fourteenth network standard version as the fourteenth network standard supported by its own card slot, compare the versions of the twelfth network standard and the fourteenth network standard.

For the third target card, theoretically, the standard version can be upgraded, so that the terminal device can obtain stronger service processing capabilities. In theory, there are two ways to improve the standard version at this time: the network search module corresponding to the card slot of the third target card performs network search, and then the corresponding standard screening and switching operation is performed. At this time, the normal business use of the third target card may be affected. Or the network search module corresponding to the card slot to which the fourth target card belongs performs network search, and then performs the corresponding standard screening and switching operation. At this time, the normal business use of the fourth target card will be affected. Both approaches have their own advantages and disadvantages. In order to determine a suitable way to improve the service processing capability of the terminal device as much as possible, the embodiment of the present application further subdivides case 3 into:

3.1. The version of the current standard (that is, the thirteenth network standard) of the fourth target card is higher than the highest standard supported by the slot of the third target card (that is, the twelfth network standard). For example, suppose that the current resident standard of the fourth target card is 5G, the highest supported standard of the card slot to which the third target card belongs is 4G, and the current resident standard of the third target card is 3G.

For case 3.1, the current resident standard of the fourth target card at this time is the highest version standard available for the terminal device. At this time, if the fourth target card network is affected, the service processing capability of the terminal device will decrease. Therefore, as an optional embodiment of this application, priority will be given to ensuring the normal use of the fourth target card service. That is, to upgrade the version of the third target card resident standard, the network search module corresponding to the card slot to which the third target card belongs can be searched for the network, and then the corresponding standard screening and switching operation can be performed. Or, the system may not be upgraded, that is, the third target card may not be processed.

3.2. The current standard version of the fourth target card is lower than the highest standard supported by the card slot to which the third target card belongs. For example, suppose that the current resident standard of the fourth target card is 4G, the highest supported standard of the card slot to which the third target card belongs is 5G, and the current resident standard of the third target card is 4G.

At this point, it is explained that by upgrading the standard version of the third target card, the service processing capability of the terminal device may be further improved. Therefore, in the embodiment of the present application, the network search module corresponding to the card slot to which the fourth target card belongs will perform a network search, and then perform corresponding standard screening and switch the third target card standard. In order to improve the standard version of the third target card.

3.3. The current resident standard of the fourth target card is the same as the highest standard version supported by the card slot to which the third target card belongs. For example, suppose that the current resident standard of the fourth target card is 5G, the highest supported standard of the card slot to which the third target card belongs is also 5G, and the current resident standard of the third target card is 4G.

For case 3.1, the current resident standard of the fourth target card at this time is the highest version standard available for the terminal device. At this time, if the fourth target card network is affected, the service processing capability of the terminal device will decrease. Therefore, as an optional embodiment of this application, priority will be given to ensuring the normal use of the fourth target card service. For the third target card, the system switching process may not be performed. Alternatively, the network search module corresponding to the card slot to which the third target card belongs can be used to perform a network search, and then perform a corresponding standard screening and switching operation. At the same time, if the two SIM card operators are the same, the cell information of the fourth target card's real-time access to the cell network can also be shared with the third target card, so that the third target card can quickly register to access the network.

As an optional embodiment of this application, after S312, it further includes:

S313: If the version of the twelfth network standard is higher than the version of the fourteenth network standard, use the network search module corresponding to the card slot to which the fourth target card belongs to perform network search to obtain at least one seventh cell network and each seventh cell The fifteenth network standard supported by the network.

For example, suppose that the current resident standard of the fourth target card is 4G, the highest supported standard of the card slot to which the third target card belongs is 5G, and the current resident standard of the third target card is 4G. At this point, it is explained that by upgrading the standard version of the third target card, the service processing capability of the terminal device may be further improved.

S314: If there is a network standard with a version higher than that of the eleventh network standard in the fifteenth network standard, the third target standard with the highest version is selected from the fifteenth network standard, and the third target standard to which the third target standard belongs is obtained. For the seventh cell information of the seven-cell network, network registration is performed on the third target card based on the seventh cell information, so that the third target card resides in the third target standard.

S313 and S314 correspond to situation 3.2, and the network search module corresponding to the card slot to which the fourth target card belongs performs network search, then performs corresponding standard screening and switches the third target card standard. In order to improve the standard version of the third target card. For specific network search operations and network registration operations, please refer to the relevant descriptions of S202 and S203, which will not be repeated here.

Corresponding to situation 3.1, if the version of the twelfth network standard is lower than the version of the fourteenth network standard. For example, suppose that the current resident standard of the fourth target card is 5G, the highest supported standard of the card slot to which the third target card belongs is also 5G, and the current resident standard of the third target card is 4G.

At this time, the current resident standard of the fourth target card is the highest version standard available for the terminal device. If the fourth target card network is affected, the service processing capability of the terminal device will decrease. Therefore, as an optional embodiment of this application, priority will be given to ensuring the normal use of the fourth target card service. To upgrade the version of the third target card resident standard, the network search module corresponding to the card slot to which the third target card belongs can be searched for the network, and then the corresponding standard screening and switching operation can be performed. Or, the system may not be upgraded, that is, the third target card may not be processed.

S315: If the versions of the twelfth network standard and the fourteenth network standard are the same, obtain the operator of the two user identification cards.

S316: If the operators of the two user identification cards are the same, use the sixth cell information of the sixth cell network that the fourth target card accesses in real time to perform network registration on the third target card, so that the third target card resides in Fourteen network standards.

If the operators of the two user identification cards are different, and the versions of the twelfth network standard and the fourteenth network standard are the same. Then the system of the third target card is not switched, or the network search module corresponding to the card slot to which the third target card belongs is searched for the network, and then the corresponding system screening and switching operation is performed.

This corresponds to case 3.3. When the two SIM card operators are the same, and the current standard version of the fourth target card (that is, the fourteenth network standard) is equal to the highest version supported by the third target card (that is, the twelfth network Standard), it means that the third target card can only upgrade the standard version to the current standard version of the fourth target card. Therefore, at this time, the embodiment of the application will obtain the cell information of the cell network that the fourth target card accesses in real time (that is, the sixth cell information of the sixth cell network), and share the cell information with the third target card, so that the third target card The card can be quickly registered in the cell network. And then quickly raise the standard version to the highest.

At this time, corresponding to case 3.3, when the two SIM card operators are different, and the current standard version of the fourth target card is equal to the highest version supported by the third target card, it means that the third target card can increase the standard version at most To the current standard version of the fourth target card. However, due to different operators, rapid network registration of the third target card cannot be achieved by sharing cell information. Therefore, in the embodiment of the present application, the standard of the third target card may not be switched, or the network search module corresponding to the card slot to which the third target card belongs may perform network search, and then perform the corresponding standard screening and switching operation.

At the same time, some optional embodiments related to the embodiment shown in FIG. 2 can also be combined with the embodiments of the present application for application without exceeding the protection scope of the present application. For content descriptions of specific embodiments, reference may be made to related descriptions of the embodiment shown in FIG.

As an optional embodiment of the present application, it is considered that the terminal device may be a dual-card dual-standby single-pass device in an actual situation. At this time, the two card slots share the baseband and radio frequency unit when performing service processing. Therefore, the network search module of a single card slot may have a certain impact on the normal service of the SIM card in the other card slot when it performs network search. Therefore, in order to reduce this impact as much as possible, to ensure the normal operation of terminal equipment services. In the embodiment of the present application, the network search operation performed by the network search module corresponding to the card slot and the network registration operation of the SIM card based on the cell information will both be performed when the SIM card in the card slot is in an idle state. That is, when the SIM card in the card slot does not perform data services or voice services, the card slot performs network search and registration. At this time, the user can use the SIM card service normally without perceiving the process of switching the SIM card system in the embodiment of the present application.

As an optional embodiment of the present application, when the terminal device searches on the network, the search efficiency and effect can be improved according to the recorded historical frequency points. Therefore, in order to further improve the search capability of the network search for the high version standard, in the embodiment of this application, each time the SIM card successfully registers the high version standard cell network, the frequency point information and the physical cell identifier of the high version standard will be Recorded to historical frequency points. After that, the terminal device can quickly search for the recorded high-version format based on the historical frequency. For example, suppose that the 5G frequency point information and the physical cell identifier are recorded in the historical frequency points. Afterwards, when performing network searches, the network search can be performed based on the historical frequency points first, thereby improving the search capability for 5G frequency points.

Specifically, when the required recording standard is the 5G standard, the recording of historical frequency points includes:

Under the NSA network, read the SIB2 information of the main card registered cell, and record the long term evolution (LTE) frequency points that support NSA and the physical cell identifier of the main card registered cell to the historical frequency point of the main card middle.

Under SA networking, read the NR system message of the registered cell of the main card, and add the NR frequency point information to the historical frequency point.

As an optional embodiment of the present application, in the case where frequency point data of multiple standards are recorded in the historical frequency points, the frequency point data may be prioritized according to the level of the standard version. Among them, the higher the version, the higher the priority, that is, the frequency point of the system with the higher version is set as the high-level priority. In this way, the network search process can be based on the priority level, and the network search for the higher version standard is firstly performed, and the search ability and efficiency are improved.

As an optional embodiment of the present application, after a certain SIM card has completed registration and resides in the higher version of the standard, the network search module of the card slot to which another SIM card belongs will stop network search, thereby restoring the data of the other SIM card Business and voice service capabilities.

In the embodiment of this application, the current resident mode of one SIM card in the two SIM cards is lower than the highest supported mode corresponding to its own card slot, and the current resident mode of the other SIM card corresponds to the highest supported mode of its own card slot. When the support system is the same. By comparing the level of the highest supported standard version of the card slots of the two SIM cards, the reasonable way to improve the standard of the SIM card can be judged. Use the card slot with the lower highest support standard capability to assist the card slot with the higher highest support standard version to upgrade the SIM card standard version in the card slot. As a result, the normal use of terminal equipment by users can be guaranteed during the entire system upgrade process. At the same time, for the card slot that actively performs network search, the network search can also be performed only when the SIM card in the card slot is in an idle state, so as to avoid the influence of network search on the terminal device business as much as possible.

Some descriptions of the embodiment shown in FIG. 2 and the embodiment shown in FIG. 3A, FIG. 3B, and FIG. 3C:

During the operation of upgrading the standard version of the above embodiment, the following situations may exist in the terminal device. By detecting whether these situations occur, it can assist in determining the embodiment shown in FIG. 2 and FIG. 3A, FIG. 3B, and FIG. Whether the operation of upgrading the standard version of the embodiment shown in 3C occurs:

1. Since the baseband chip and radio frequency unit are needed for network search, the overall power consumption of the terminal equipment will increase at this time. For example, it can be expressed that the standby current will increase relative to the standby current when the above-mentioned standard version boost operation is not performed.

Specifically, the degree of standby current increase needs to be determined according to the actual terminal device network search related software and hardware conditions. For example, in some tests, the normal standby current of the tested terminal equipment was about 8 mA. During the operation of upgrading the standard version using the above-mentioned embodiment, the standby current increased by about 1 mA. At this time, the degree of improvement is about 10%.

2. When using a certain card slot for network search, it will read the system information of the cell in the current environment, such as MIB messages and SIB messages. When the card slot network search result is used to assist the SIM card in another card slot to reside in a high-version standard cell, the cell information will be recorded in messages such as MIB messages and SIB messages. Therefore, it can be seen that the last cell where the SIM card with the upgraded standard version resides is one of the cells searched by the card slot for network search.

It should be understood that the size of the sequence number of each step in the foregoing embodiment does not mean the order of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

It should be understood that when used in the specification and appended claims of this application, the term "comprising" indicates the existence of the described features, wholes, steps, operations, elements and/or components, but does not exclude one or more other The existence or addition of features, wholes, steps, operations, elements, components, and/or collections thereof.

It should also be understood that the term "and/or" used in the specification and appended claims of this application refers to any combination of one or more of the items listed in the associated and all possible combinations, and includes these combinations.

As used in the description of this application and the appended claims, the term "if" can be construed as "when" or "once" or "in response to determination" or "in response to detecting ". Similarly, the phrase "if determined" or "if detected [described condition or event]" can be interpreted as meaning "once determined" or "in response to determination" or "once detected [described condition or event]" depending on the context ]" or "in response to detection of [condition or event described]".

In addition, in the description of the specification of this application and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. It should also be understood that although the terms “first”, “second”, etc. are used in the text in some embodiments of the present application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first network standard can be named the second network standard, and similarly, the second network standard can be named the first network standard without departing from the scope of the various described embodiments. The first network standard and the second network standard are both network standards, but they do not refer to the same network standard.

The reference to "one embodiment" or "some embodiments" described in the specification of this application means that one or more embodiments of this application include a specific feature, structure, or characteristic described in combination with the embodiment. Therefore, the sentences "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments" unless it is specifically emphasized otherwise. The terms "including", "including", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

The dual-card-based network system switching method provided by the embodiments of the present application can be applied to mobile phones, tablets, wearable devices, vehicle-mounted devices, augmented reality (AR)/virtual reality (VR) devices, and notebook computers For terminal devices such as ultra-mobile personal computers (UMPC), netbooks, and personal digital assistants (PDAs), the embodiments of this application do not impose any restrictions on the specific types of terminal devices.

For example, the terminal device may be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, or a wireless local loop (WLL) station , Personal digital assistant (PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, car networking terminals, computers, laptop computers, handheld communications Devices, handheld computing devices, satellite wireless devices, wireless modem cards, TV set top boxes (STB), customer premise equipment (CPE), and/or other devices used to communicate on wireless systems, and Next-generation communication systems, for example, terminal equipment in a 5G network or terminal equipment in a public land mobile network (PLMN) network that will evolve in the future.

As an example and not a limitation, when the terminal device is a wearable device, the wearable device can also be a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, Watches, clothing and shoes, etc. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be implemented without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to be used in conjunction with other devices such as smart phones. , Such as all kinds of smart bracelets and smart jewelry for physical sign monitoring.

Fig. 4 is a schematic structural diagram of a terminal device provided by an embodiment of the present application. As shown in FIG. 4, the terminal device 4 of this embodiment includes: at least one processor 40 (only one is shown in FIG. 4), a memory 41, and a memory 41 that can run on the processor 40 is stored in the memory 41. Computer program 42. When the processor 40 executes the computer program 42, the steps in the above-mentioned embodiments of the dual-card-based network system switching method are implemented, such as steps 200 to 204 shown in FIG. 2, or shown in FIG. 3A, FIG. 3B, and FIG. 3C. The steps 300 to 315 shown in the embodiment are shown.

The terminal device 4 may be a computing device such as a desktop computer, a notebook, a palmtop computer, and a cloud server. The terminal device may include, but is not limited to, a processor 40 and a memory 41. Those skilled in the art can understand that FIG. 4 is only an example of the terminal device 4, and does not constitute a limitation on the terminal device 4. It may include more or less components than shown in the figure, or a combination of certain components, or different components. For example, the terminal device may also include an input sending device, a network access device, a bus, and the like.

The so-called processor 40 may be a central processing unit (CPU), other general-purpose processors, digital signal processors (digital signal processors, DSP), application specific integrated circuits (ASICs), Ready-made field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

The memory 41 may be an internal storage unit of the terminal device 4 in some embodiments, such as a hard disk or memory of the terminal device 4. The memory 41 may also be an external storage device of the terminal device 4, such as a plug-in hard disk equipped on the terminal device 4, a smart media card (SMC), or a secure digital (SD) Card, flash card, etc. Further, the memory 41 may also include both an internal storage unit of the terminal device 4 and an external storage device. The memory 41 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program. The memory 41 can also be used to temporarily store data that has been sent or will be sent.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

The embodiments of the present application also provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in each of the foregoing method embodiments can be realized.

The embodiments of the present application provide a computer program product. When the computer program product runs on a terminal device, the terminal device can realize the steps in the foregoing method embodiments when the terminal device is executed.

If the integrated module/unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiments and methods, and can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the program is executed by the processor, it can implement the steps of the foregoing method embodiments. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate forms. The computer readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (read-only memory, ROM) ), random access memory (RAM), electrical carrier signal, telecommunications signal, and software distribution media.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail or recorded in an embodiment, reference may be made to related descriptions of other embodiments.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that it can still implement the foregoing The technical solutions recorded in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in Within the scope of protection of this application.

Finally, it should be noted that the above are only specific implementations of this application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application shall be covered by this application. Within the scope of protection applied for. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (18)

1. A method for switching network standards based on dual cards is characterized in that it is applied to a terminal device. The terminal device includes a primary card slot and a secondary card slot, and the method includes:

   Acquiring the first network standard that the main user identification card resides in real time, and the second network standard that the main card slot supports;

   If the version of the first network standard is lower than the version of the second network standard, use the network search module corresponding to the secondary card slot to perform network search;

   The system with the highest version is selected from all the systems obtained from the network search, and the network system where the master user identification card resides in real time is switched to the system with the highest version.
2. The method for switching network standards based on dual cards according to claim 1, wherein the network search module corresponding to the secondary card slot is used for network search; the version is filtered out from all standards obtained from the network search The highest standard, and switch the network standard that the master user identification card resides in real time to the highest version standard, including:

   Use the network search module corresponding to the secondary card slot to perform network search to obtain at least one first cell network and a third network standard supported by each of the first cell networks;

   If there is a standard with a higher version than the first network standard in the third network standard, the target network standard with the highest version in the third network standard is screened out, and the target network standard to which the target network standard belongs is obtained. The first cell information of the first cell network;

   Perform network registration on the primary user identification card based on the first cell information, so that the primary user identification card resides in the target network standard.
3. The method for switching network standards based on dual cards according to claim 1 or 2, characterized in that, before the network search is performed using the network search module corresponding to the secondary card slot, the method further comprises:

   Acquiring the number of user identification cards in the terminal device;

   Correspondingly, if the version of the first network standard is lower than the version of the second network standard, using the network search module corresponding to the secondary card slot to perform network search includes:

   If the number is 1, and the version of the first network standard is lower than the version of the second network standard, the network search module corresponding to the secondary card slot is used for network search.
4. The method for switching network standards based on dual cards according to claim 1 or 2, characterized in that, before the network search is performed using the network search module corresponding to the secondary card slot, the method further comprises:

   Acquiring the number of user identification cards in the terminal device;

   Correspondingly, if the version of the first network standard is lower than the version of the second network standard, using the network search module corresponding to the secondary card slot to perform network search includes:

   If the number is 2, and the version of the first network standard is lower than the version of the second network standard, the fourth network standard in which the secondary user identification card resides in real time is acquired, and the primary user identification card belongs to The first operator of and the second operator to which the secondary user identification card belongs;

   If the first operator and the second operator are the same, and the version of the fourth network standard is lower than the version of the second network standard, the network search module corresponding to the secondary card slot is used for network search.
5. The method for switching network standards based on dual cards according to claim 4, further comprising:

   If the first operator and the second operator are the same, and the fourth network standard is the same as the version of the second network standard, acquire the second cell network that the secondary user identification card has real-time access to ’S second cell information;

   Perform network registration on the primary subscriber identity card based on the second cell information, so that the subscriber identity card resides in the fourth network standard.
6. The method for switching network standards based on dual cards according to claim 4, wherein if the first operator and the second operator are different, the network search module corresponding to the secondary card slot is used to perform the network search.
7. The method for switching network standards based on dual cards according to any one of claims 1 to 6, characterized in that the first network standard in which the master user identification card resides in real time is acquired, and the main card slot supports up to Before the second network standard, it also includes:

   If it is detected that the main user identification card has a standard fall during the voice service process, when the voice service ends, the first network standard for acquiring the real-time residency of the main user identification card and the main card slot are executed. The operation of the highest supported second network standard.
8. The dual-card-based network system switching method according to any one of claims 1 to 7, wherein the terminal device is a dual-card dual-standby single-pass device, and the search device corresponding to the secondary card slot is used. The network module performs network search, including:

   The service status of the primary user identification card is acquired, and if the service status is idle, the network search module corresponding to the secondary card slot is used to perform network search.
9. A method for switching network standards based on dual cards is characterized in that it is applied to a terminal device, the terminal device contains two card slots, and the method includes:

   Detecting the user identification cards inserted in the two card slots;

   If only one user identification card is inserted into the two card slots, the fifth network standard that the inserted user identification card resides in real time and the sixth highest supported sixth network standard of the inserted user identification card are obtained. Network standard;

   If the version of the fifth network standard is lower than the version of the sixth network standard, use the network search module corresponding to the card slot where the user identification card is not inserted in the two card slots to perform network search;

   The system with the highest version is selected from all the systems obtained from the network search, and the network system in which the inserted user identification card resides in real time is switched to the system with the highest version.
10. The method for switching network standards based on dual cards according to claim 9, wherein the network search module corresponding to the card slot in which the user identification card is not inserted in the two card slots is used for network search; From all the systems obtained from the network search, the system with the highest version is selected, and the network system where the inserted user identification card resides in real time is switched to the system with the highest version, including:

    Use the network search module corresponding to the card slot in which the user identification card is not inserted in the two card slots to perform a network search to obtain at least one third cell network and a seventh network standard supported by each third cell network;

    If there is a system with a version higher than the version of the fifth network standard in the seventh network standard, the first target standard with the highest version in the seventh network standard is filtered out, and the third target standard to which the first target standard belongs is obtained. The third cell information of the cell network;

    Perform network registration on the inserted user identification card based on the third cell information, so that the inserted user identification card resides in the first target standard.
11. A method for switching network standards based on dual cards is characterized in that it is applied to a terminal device, the terminal device contains two card slots, and the method includes:

    Detecting the user identification cards inserted in the two card slots;

    If both user identification cards are inserted in the two card slots, and the network standard versions of the two user identification cards that reside in real time are both lower than the highest supported network standard version of the respective card slots, then two user identification cards are obtained Business status;

    If there are a first target card whose service state is in a connected state and a second target card whose service state is in an idle state among the two user identification cards, use the network search module corresponding to the card slot to which the second target card belongs to perform network search;

    The system with the highest version is selected from all the systems obtained from the network search, and the network system where the first target card resides in real time is switched to the system with the highest version.
12. The method for switching network standards based on dual cards according to claim 11, wherein the highest network standard supported by the card slot to which the first target card belongs is taken as the ninth network standard, and the second target card resides in real time. As the tenth network standard;

    Before the network search is performed by using the network search module corresponding to the card slot to which the second target card belongs, the method further includes:

    A third operator of the first target card and a fourth operator of the second target card;

    If the third operator and the fourth operator are the same, and the version of the tenth network standard is lower than the version of the ninth network standard, execute the use of the slot to which the second target card belongs The corresponding network search module performs network search operations; or

    If the third operator and the fourth operator are different, perform the operation of using the network search module corresponding to the card slot to which the second target card belongs to perform network search.
13. The method for switching network standards based on dual cards according to claim 12, wherein the method further comprises:

    If the third operator and the fourth operator are the same, and the tenth network standard is the same as the ninth network standard version, obtain the real-time access to the fourth cell network of the second target card Fourth cell information, and network registration is performed on the first target card based on the fourth cell information, so that the first target card resides in the tenth network standard.
14. A method for switching network standards based on dual cards is characterized in that it is applied to a terminal device, the terminal device contains two card slots, and the method includes:

    Detecting the user identification cards inserted in the two card slots;

    If user identification cards are inserted in both of the two card slots, and in the two user identification cards, the version of the eleventh network standard that resides in real time is lower than the version of the twelfth network standard supported by the card slot to which it belongs And the fourth target card that has the same thirteenth network standard and the fourteenth network standard version supported by its own card slot in real time, then compare the twelfth network standard with the fourth target card. Fourteen network standard version level;

    If the version of the twelfth network standard is higher than the version of the fourteenth network standard, use the network search module corresponding to the card slot to which the fourth target card belongs to perform network search;

    The system with the highest version is selected from all the systems obtained from the network search, and the network system where the third target card resides in real time is switched to the system with the highest version.
15. The method for switching network standards based on dual cards according to claim 14, further comprising:

    If the versions of the twelfth network standard and the fourteenth network standard are the same, identify the operators to which the two user identification cards belong;

    If the operators of the two subscriber identification cards are the same, use the sixth cell information of the sixth cell network that the fourth target card accesses in real time to perform network registration on the third target card, so that the third target The card resides in the fourteenth network standard.
16. The method for switching network standards based on dual cards according to any one of claim 9, claim 11, and claim 14, characterized in that, before said detecting the user identification cards inserted in the two card slots, Also includes:

    If it is detected that a user identification card has a standard fall during the voice service process, the operation of detecting the user identification cards inserted in the two card slots is performed when the voice service ends.
17. A terminal device, characterized in that the terminal device includes a memory and a processor, and a computer program that can run on the processor is stored in the memory. When the processor executes the computer program, the The steps of the method according to any one of claims 1 to 8, or the steps of the method according to any one of claims 9 to 10, or the steps of the method according to any one of claims 11 to 13, or any of claims 14 to 15. One of the steps of the described method.
18. A chip system, wherein the chip system includes a memory and a processor, and the processor executes a computer program stored in the memory to implement the steps of the method according to any one of claims 1 to 8, Or the steps of the method according to any one of claims 9 to 10, or the steps of the method according to any one of claims 11 to 13, or the steps of the method according to any one of claims 14 to 15.

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