CN114363882A - Data card switching method and device - Google Patents

Abstract

Embodiments of the present application provide a data card switching method and device, the method comprising: when a network device switches a data card from a first SIM card to a second SIM card, and the network type supported by the second SIM card is IPV6, Receive the first route advertisement message from the network device, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system, so that when the data card is switched from the first SIM card to the second SIM card, the terminal The device can quickly connect to network devices, restore Internet access, and improve user experience.

Description

Data card switching method and device

technical field

The present application relates to the field of communication technologies, and in particular, to a data card switching method and device.

Background technique

At present, a mobile wireless router (Mobile WIFI, MIFI) can support multiple SubscriberIdentity Modules (SIM). When the MIFI router switches from SIM card 1 to SIM card 2, SIM card 2 needs to connect to the public data network (Public Data Network). Network, PDN) activation, and restart the WIFI hotspot and Universal Serial Bus (Universal Serial Bus, USB) network sharing, so that the terminal device connected to the MIFI router reconnects the network device and obtains the correct IP address and DNS Server, but during the switching process , the terminal device connected to the MIFI router will not be able to access the Internet for a long time, affecting the user experience.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a data card switching method and device, which can reduce the time for a terminal device connected to the network device to resume Internet access when the network device performs a SIM card, thereby enhancing user experience.

In a first aspect, an embodiment of the present application provides a data card switching method, which is applied to a terminal device, and the method includes:

When the network device switches the data card from the first SIM card to the second SIM card, and the network type supported by the second SIM card is IPV6, a first route advertisement message from the network device is received, and the first route advertisement message is received. The route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system;

Data communication is performed to the public data network PDN based on the IPV6 prefix and the DNS proxy lease.

In a second aspect, an embodiment of the present application provides a data card switching method, which is applied to a network device, and the method includes:

When switching the data card from the first SIM card to the second SIM card, acquiring the network type supported by the second SIM card;

When the network type is IPV6, a first route advertisement message is sent to the terminal device, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system.

In a third aspect, an embodiment of the present application provides a data card switching apparatus, which is applied to a terminal device, and the apparatus includes:

A transceiver unit, configured to receive a first route advertisement message from the network device when the network device switches the data card from the first SIM card to the second SIM card, and the network type supported by the second SIM card is IPV6 , the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system;

The transceiver unit is further configured to perform data communication to the public data network PDN based on the IPV6 prefix and the DNS proxy lease.

In a fourth aspect, an embodiment of the present application provides a data card switching apparatus, which is applied to network equipment, and the apparatus includes:

a processing unit, configured to acquire the network type supported by the second SIM card when the data card is switched from the first SIM card to the second SIM card;

A transceiver unit, configured to send a first route advertisement message to the terminal device when the network type is IPV6, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system.

In a fifth aspect, an embodiment of the present application provides a chip, including a processor, a memory, and a computer program or instruction stored on the memory, where the processor executes the computer program or instruction to implement the first aspect or the first aspect. The data card switching method described in the second aspect.

In a sixth aspect, an embodiment of the present application provides a chip module, including a transceiver component and a chip, where the chip includes a processor, a memory, and a computer program or instruction stored on the memory, and the processor executes the computer A program or instruction is used to implement the data card switching method described in the first aspect or the second aspect.

In a seventh aspect, an embodiment of the present application provides a terminal device, the terminal device includes a processor, a memory, a communication interface, and one or more programs, the one or more programs are stored in the memory, and Configured to be executed by the processor, the program includes instructions for performing some or all of the steps described in the method of the first or second aspect above.

In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the first aspect or the second aspect above Some or all of the steps described in the method of the aspect.

In a ninth aspect, an embodiment of the present application provides a computer program product containing instructions, when the computer program product is run on an electronic device, the electronic device is made to execute the method described in the first aspect or the second aspect. .

In the technical solution provided by the present application, when the network device switches the data card from the first SIM card to the second SIM card, and the network type supported by the second SIM card is IPV6, the first route advertisement message from the network device is received, the The first routing advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system, so that when the data card is switched from the first SIM card to the second SIM card, the terminal device can quickly connect to the network device and restore the Internet access function, Improve user experience.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic flowchart of a data card switching method provided by an embodiment of the present application;

2 is a schematic flowchart of another data card switching method provided by an embodiment of the present application;

3 is a block diagram of functional units of a data card switching device provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

In order to better understand the solutions of the embodiments of the present application, related terms and concepts that may be involved in the embodiments of the present application are first introduced below.

A Subscriber Identity Module (SIM), also known as a SIM card, is used to implement a connection to a mobile network, such as to a Global System for Mobile Communications (GSM) network or to a Universal Mobile Communications System (Universal) Mobile Telecommunications System, UMTS) network access. The subscriber identity module used in the LTE 3GPP standard is also called a universal subscriber identity module (Universal Subscriber Identity Module, USIM), and the USIM is also a type of SIM. A SIM card is a Universal Integrated Circuit Card (UICC).

IP address refers to the Internet Protocol address and is translated into Internet Protocol Address (IP Address). IP address is a unified address format provided by the IP protocol. It is assigned to each network and each host on the Internet. A logical address to mask differences in physical addresses. On the Internet, each node distinguishes and communicates with each other by a unique IP address. There are two types of IP addresses: IPV4 and IPV6. IPV4 is a 32-bit binary number address, which consists of 4 8-bit fields, each of which is separated by a dot, which is used to identify the TCP/IP host. Every IP address consists of two parts: the network ID and the host ID. Compared with IPV4, IPV6 increases the address length from 32 bits to 128 bits, which can support more address requirements. The network ID identifies all hosts on the same physical network, and the host ID identifies each host on the physical network, so each computer on the entire Internet is identified by its own unique IP address.

Domain Name System (DNS) is a distributed database on the Internet that maps domain names and IP addresses to each other, which enables users to access the Internet more conveniently without having to remember IP strings that can be directly read by machines. The process of mapping a domain name to an IP address is called "domain name resolution". Domain name resolution needs to be completed by a dedicated domain name resolution server, and DNS is the server that performs domain name resolution. When a user enters a DNS name (domain name) in the application, the DNS server can resolve this name to its corresponding IP address. Therefore, the domain name entered by the user when surfing the Internet can be finally accessed through the IP address pointed to by the domain name.

A terminal device, also called user equipment (User Equipment, UE), is a device that provides voice and/or data connectivity to a user, such as a handheld device with a wireless connection function, a vehicle-mounted device, and the like. Common terminal devices include, for example, mobile phones, tablet computers, notebook computers, PDAs, Mobile Internet Devices (MIDs), wearable devices, smart bracelets, pedometers, and moving image experts. Experts Group Audio Layer III, MP3 players), Moving Picture Experts Group Audio Layer IV (MP4) players, Personal Digital Assistants (PDAs) and laptop computers, etc. .

A network device, also referred to as a routing device, is a device deployed in a wireless access network to provide wireless routing functions, such as any routing device or access device between a terminal device and a PDN, such as a MIFI router.

At present, MIFI can support multiple SIM cards. The terminal device can activate PDN through SIM card 1 as a data card, and connect to MIFI through WIFI hotspot or USB to access the Internet. However, when SIM card 1 cannot access the Internet due to some reasons (such as data When the data is used up, etc.), you need to switch the data card to SIM card 2, and then you need to do PDN activation on SIM card 2, restart the WIFI hotspot and USB network sharing. However, after the SIM card 2 is activated by PDN, the information of the external network card (such as IP address, DNS Server, etc.) will change, and the terminal device needs to reconnect to the MIFI and obtain the correct external network information. Therefore, in the process of switching the SIM card, the terminal device connected to the MIFI will not be able to access the Internet for a long time, which affects the user experience.

In order to solve the above problems, the present application proposes a data card switching method. When the terminal device switches from the first SIM card to the second SIM card, and the network type supported by the second SIM card is IPV6, it receives the data sent by the network device. The route advertisement message is used to obtain the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system, so that the terminal device can quickly connect to the network, restore the Internet access function, and improve the user experience.

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Please refer to FIG. 1 , which is a schematic flowchart of a data card switching method according to an embodiment of the present application. As shown in Figure 1, the method includes the following steps.

S110. When switching the data card from the first SIM card to the second SIM card, the network device acquires the network type supported by the second SIM card.

Wherein, the network device may be a MIFI router connected to the terminal device. When the MIFI router uses the first SIM card as the data card to communicate with the PDN, but the first SIM card can no longer be used as the data card to access the Internet due to some reasons (for example, when the data traffic is used up), the MIFI router will transfer the data card from the data card to the PDN. The first SIM card is switched to the second SIM card. During the switching process of the data card, it is necessary to activate the PDN on the second SIM card and then reconnect to the MIFI to obtain the correct IP address and DNS proxy service for Internet access, which takes a long time and makes the terminal device unable to access the Internet for a long time. . Therefore, in this embodiment of the present application, when the network device switches the data card from the first SIM card to the second SIM card, the MIFI can obtain the network type supported by the second SIM card, and then determine and obtain the network type supported by the second SIM card. The measures of the terminal device's Internet access parameters reduce the time for recovering the Internet access when the network device performs the SIM card, and improve the user experience.

Optionally, the method further includes: before acquiring the network type supported by the second SIM card, disconnecting the connection with the first SIM card and establishing a connection with the second SIM card.

Wherein, when the network device uses the first SIM card as a data card to perform data communication, the first SIM card needs to perform PDN activation, that is, establish a connection between the first SIM card and the PDN, and obtain the Internet access parameters corresponding to the first SIM card ( Such as subnet mask, IP address, DNS proxy lease, gateway, operator, etc.), so that the first SIM card uses its corresponding Internet access parameters to perform data communication with the PDN.

Specifically, when the MIFI router switches the data card from the first SIM card to the second SIM card, the external network gateway will change, and the Internet access parameters corresponding to the first SIM card may not be applicable to the second SIM card. Therefore, when switching the data card from the first SIM card to the second SIM card in the present application, the MIFI router can perform a de-PDN activation operation on the first SIM card to disconnect the connection with the first SIM card and cancel the terminal device storage The Internet access parameters corresponding to the first SIM card. At the same time, the MIFI router performs a PDN activation operation on the second SIM card to establish a connection with the second SIM card, thereby sending the Internet access parameters corresponding to the second SIN card to the terminal device for updating.

Further, the method further includes: updating NAT translation configuration parameters and routing parameters. Wherein, when the data card is switched from the first SIM card to the second SIM card, since the network card of the external network will change, the NAT conversion configuration parameters and routing parameters when the network device performs data communication will also change. Therefore, in the present application, when the data card is switched, the MIFI router can update the NAT translation configuration parameters and routing parameters used after the data card switch, so that the terminal device can resume the Internet access.

S120. When the network type is IPV6, the network device sends a first route advertisement message to the terminal device, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system.

Wherein, when the network type supported by the second SIM card is IPV6, since IPV6 uses the Global address, the network card in the external network changes, and the allocated address will also change. IPV6 needs to update the Global address and DNS service. Since the terminal device cannot know the process of switching the data card from the first SIM card to the second SIM card by the MIFI router, the MIFI router sends the first SIM card to the terminal device when it determines that the network type supported by the second SIM card is IPV6. A route advertisement (Router Advertisement, RA) message, the first route advertisement message can carry the IPV6 prefix and the proxy lease of the second SIM card corresponding to the external network card, and the lifetime is set to a valid value. Therefore, after receiving the first route advertisement message, the terminal device will update the IPV6 prefix of the second SIM card on the terminal device and the DNS proxy lease of the domain name system.

Optionally, before sending the first route advertisement message to the terminal device, the method further includes: sending a second route advertisement message to the terminal device, where the second route advertisement message is used to indicate the first route advertisement message. The IPV6 prefix and DNS proxy lease corresponding to the SIM card are invalid.

In the embodiment of the present application, after the MIFI router switches the data card from the first SIM card to the second SIM card, it can first send a second routing advertisement message to the terminal device, and the second routing advertisement message can carry the first SIM card IPV6 prefix and proxy lease of the corresponding external network card, and set its lifetime to 0.

Correspondingly, when the terminal device receives the second route advertisement message from the network device, since its lifetime is 0, the terminal device will cancel the IPV6 prefix and the IPV6 prefix carried in the second route advertisement message after receiving the second route advertisement message. Proxy lease, that is, cancel the IPV6 prefix and DNS proxy lease corresponding to the first SIM card.

S130. The terminal device receives the first route advertisement message from the network device, and performs data communication with the public data network PDN based on the IPV6 prefix and the DNS proxy lease.

Specifically, after receiving the first route advertisement message sent by the MIFI router, the terminal device can lease the IPV6 prefix and DNS proxy of the second SIM card carried by the terminal device as the IPV6 prefix and DNS proxy lease of the terminal device for accessing the Internet. When the terminal device needs to perform data communication with the PDN, the terminal device can use the updated IPV6 prefix and the DNS proxy lease to send data packets to the MIFI router. After the MIFI router receives the data packet, it normally processes NAT translation and routing forwarding to realize data communication with the PDN, so that the terminal device can quickly resume the Internet access.

It can be seen that the present application proposes a data card switching method. When the network device switches the data card from the first SIM card to the second SIM and the network type supported by the second SIM card is IPV6, the first SIM card is received from the network device. A route advertisement message, which carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system, so that the terminal device can quickly connect to the network device when the data card is switched from the first SIM card to the second SIM card , restore the Internet access function, improve the user experience.

Please refer to FIG. 2 , which is a schematic flowchart of another data card switching method provided by an embodiment of the present application. As shown in Figure 2, the method includes the following steps.

S210. When switching the data card from the first SIM card to the second SIM card, the network device acquires the network type supported by the second SIM card.

S220. When the network type is IPV6, the network device sends a first route advertisement message to the terminal device, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system.

S230. When the network type is IPV4, the terminal device receives the first route advertisement message from the network device, and performs data communication with the public data network PDN based on the IPV6 prefix and the DNS proxy lease.

The specific implementation manner of the foregoing S210-S230 may refer to the specific implementation manner described in the foregoing FIG. 1 , and details are not described herein again.

S240. When the network type is IPV4, the terminal device keeps the first information unchanged, and performs data communication with the PDN based on the first information, where the first information includes that the terminal device is connected to the network device at least one parameter required.

Wherein, since the IP address of the IPV4 is the IP address of the local area network, when the terminal device does not move or does not move outside the local area network, the IP address used by the terminal device to access the Internet remains unchanged. Therefore, in this embodiment of the present application, when the network type supported by the second SIM card is IPV4, the parameters for the terminal device to access the Internet remain unchanged. The terminal device can use the previous Internet access parameters to send data packets, and the MIFI router that receives the data packets normally processes NAT translation and routing forwarding by itself to realize data communication with the PDN, so that the terminal device can quickly resume the Internet access.

In the embodiment of the present application, when the network device switches the data card from the first SIM card to the second SIM card, if the network type supported by the second SIM card is IPV4, the parameters and PDN of the terminal device to surf the Internet directly are used. Carry out data communication to reduce the time for the terminal device to quickly restore the Internet; if the network type supported by the second SIM card is IPV6, then receive the first route advertisement message sent by the network device to obtain the updated IPV6 prefix and DNS proxy lease, so that the terminal device It can quickly connect network devices, restore Internet access, and improve user experience.

The foregoing mainly introduces the solutions of the embodiments of the present application from the perspective of the method-side execution process. It can be understood that, in order to implement the above functions, the network device includes corresponding hardware structures and/or software modules for performing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or in the form of a combination of hardware and computer software, in combination with the units and algorithm steps of each example described in the embodiments provided herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Please refer to FIG. 3 . FIG. 3 is a block diagram of functional units of a data card switching apparatus 300 according to an embodiment of the present application. The apparatus 300 can be applied to terminal equipment, and the apparatus can also be applied to network equipment. The apparatus 300 includes: a transceiver unit 310 and a processing unit 320 .

In a possible implementation manner, the apparatus 300 is configured to execute each process and step corresponding to the terminal device in the above-mentioned instruction method.

The transceiver unit 310 is configured to receive the first SIM card from the network device when the network device switches the data card from the first SIM card to the second SIM card, and the network type supported by the second SIM card is IPV6. a route advertisement message, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the Domain Name System;

The transceiver unit 310 is further configured to perform data communication to the public data network PDN based on the IPV6 prefix and the DNS proxy lease.

Optionally, the processing unit 320 is further configured to keep the first information unchanged when the network type is IPV4, where the first information includes at least one parameter required by the terminal device to connect to the network device ;

The transceiver unit 310 is further configured to perform data communication to the public data network PDN based on the first information.

Optionally, before receiving the first route advertisement message from the network device, the transceiver unit 310 is further configured to: receive a second route advertisement message from the network device, where the second route advertisement message is used to indicate the The IPV6 prefix and DNS proxy lease corresponding to the first SIM card are invalid;

The processing unit 320 is further configured to: based on the second route advertisement message, cancel the IPV6 prefix and the DNS proxy lease corresponding to the first SIM card.

In another possible implementation manner, the apparatus 300 is configured to execute each process and step corresponding to the network device in the above-mentioned instruction method.

The processing unit 320 is configured to acquire the network type supported by the second SIM card when the data card is switched from the first SIM card to the second SIM card;

The transceiver unit 310 is configured to send a first routing advertisement message to the terminal device when the network type is IPV6, where the first routing advertisement message carries the IPV6 prefix of the second SIM card and the domain name system DNS Agency lease.

Optionally, before sending the first route advertisement message to the terminal device, the transceiver unit 310 is further configured to: send a second route advertisement message to the terminal device, where the second route advertisement message is used to indicate the The IPV6 prefix and DNS proxy lease corresponding to the first SIM card are invalid.

Optionally, the processing unit 320 is further configured to: disconnect the connection with the first SIM card and establish a connection with the second SIM card before acquiring the network type supported by the second SIM card.

It should be understood that the apparatus 300 here is embodied in the form of functional units. The term "unit" herein may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (eg, a shared processor, a proprietary processor, or a group of processors, etc.) and memory, merge logic, and/or other suitable components to support the described functions. In an optional example, those skilled in the art can understand that the apparatus 300 may be specifically the terminal device in the foregoing embodiment, and the apparatus 300 may be configured to execute each process and/or step corresponding to the terminal device in the foregoing method embodiment, To avoid repetition, details are not repeated here.

The apparatus 300 of each of the above solutions has the function of implementing the corresponding steps performed by the terminal device in the above method; the function may be implemented by hardware, or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit 310 may be replaced by a transmitter and a receiver, and the processing unit 320 may be replaced by a processor, which respectively perform the transceiver operations in each method embodiment. and related processing operations.

In this embodiment of the present application, the apparatus 300 may also be a chip or a chip system, such as a system on chip (system on chip, SoC). Correspondingly, the detection unit may be a detection circuit of the chip, which is not limited herein.

Please refer to FIG. 4. FIG. 4 is a schematic structural diagram of a terminal device provided by an embodiment of the present application. The terminal device includes: one or more processors, one or more memories, one or more communication interfaces, and one or more a plurality of programs; the one or more programs stored in the memory and configured to be executed by the one or more processors.

In a possible implementation manner, the electronic device is a terminal device, and the above program includes instructions for executing the following steps:

When the network device switches the data card from the first SIM card to the second SIM card, and the network type supported by the second SIM card is IPV6, a first route advertisement message from the network device is received, and the first route advertisement message is received. The route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system;

Data communication is performed to the public data network PDN based on the IPV6 prefix and the DNS proxy lease.

In another possible implementation manner, the electronic device is a network device, and the above program includes instructions for executing the following steps:

When switching the data card from the first SIM card to the second SIM card, acquiring the network type supported by the second SIM card;

When the network type is IPV6, a first route advertisement message is sent to the terminal device, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system.

Wherein, all the relevant contents of the scenarios involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here.

It should be understood that the memory described above may include read-only memory and random access memory and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.

In this embodiment of the present application, the processor of the above device may be a central processing unit (Central Processing Unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), Field Programmable Gate Arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should be understood that "at least one" referred to in the embodiments of the present application refers to one or more, and "a plurality" refers to two or more. "And/or", which describes the relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, it can indicate that A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .

And, unless stated to the contrary, the ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, sequence, priority or priority of multiple objects. Importance. For example, the first information and the second information are only for distinguishing different information, and do not indicate the difference in content, priority, transmission order, or importance of the two kinds of information.

In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The steps of the method disclosed in combination with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software units in the processor. The software unit may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor executes the instructions in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, detailed description is omitted here.

An embodiment of the present application further provides a chip, including a processor, a memory, and a computer program or instruction stored on the memory, where the processor executes the computer program or instruction to implement any one of the method embodiments described above The described data card switching method.

An embodiment of the present application further provides a chip module, including a transceiver component and a chip, the chip includes a processor, a memory, and a computer program or instruction stored on the memory, and the processor executes the computer program or instruction In order to realize the data card switching method described in any one of the above method embodiments.

Embodiments of the present application further provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program causes the computer to execute part or all of the steps of any method described in the above method embodiments .

Embodiments of the present application further provide a computer program product including instructions, which, when the computer program product runs on an electronic device, enables the electronic device to execute some or all of the steps of any method described in the above method embodiments.

It should be noted that, for the sake of simple description, the foregoing method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the described action sequence. Because in accordance with the present application, certain steps may be performed in other orders or concurrently. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

In the above-mentioned embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the above units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.

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

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

The above-mentioned integrated units, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art, or all or part of the technical solution, and the computer software product is stored in a memory, Several instructions are included to cause a computer device (which may be a personal computer, a server, or a TRP, etc.) to execute all or part of the steps of the methods of various embodiments of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash disk , ROM, RAM, disk or CD, etc.

The embodiments of the present application have been introduced in detail above, and the principles and implementations of the present application are described in this paper by using specific examples. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present application; at the same time, for Persons of ordinary skill in the art, based on the idea of the present application, will have changes in the specific implementation manner and application scope. In summary, the contents of this specification should not be construed as limitations on the present application.

Claims (12)

1. A data card switching method, characterized in that, applied to a terminal device, the method comprising: When the network device switches the data card from the first SIM card to the second SIM card, and the network type supported by the second SIM card is IPV6, a first route advertisement message from the network device is received, and the first route advertisement message is received. The route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system; Data communication is performed to the public data network PDN based on the IPV6 prefix and the DNS proxy lease. 2. The method according to claim 1, wherein the method further comprises: When the network type is IPV4, keep the first information unchanged, where the first information includes at least one parameter required by the terminal device to connect to the network device; Data communication is performed to the PDN based on the first information. 3. The method according to claim 1 or 2, wherein before receiving the first route advertisement message from the network device, the method further comprises: receiving a second route advertisement message from the network device, where the second route advertisement message is used to indicate that the IPV6 prefix and DNS proxy lease corresponding to the first SIM card are invalid; Based on the second route advertisement message, cancel the IPV6 prefix and DNS proxy lease corresponding to the first SIM card. 4. A data card switching device, characterized in that, when applied to network equipment, the method comprises: When switching the data card from the first SIM card to the second SIM card, acquiring the network type supported by the second SIM card; When the network type is IPV6, a first route advertisement message is sent to the terminal device, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system. 5. The method according to claim 4, wherein before sending the first route advertisement message to the terminal device, the method further comprises: Send a second route advertisement message to the terminal device, where the second route advertisement message is used to indicate that the IPV6 prefix and DNS proxy lease corresponding to the first SIM card are invalid. 6. The method according to claim 4 or 5, wherein the method further comprises: Before acquiring the network type supported by the second SIM card, the connection with the first SIM card is disconnected, and the connection with the second SIM card is established. 7. A data card switching device, characterized in that, applied to terminal equipment, the device comprising: A transceiver unit, configured to receive a first route advertisement message from the network device when the network device switches the data card from the first SIM card to the second SIM card, and the network type supported by the second SIM card is IPV6 , the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system; The transceiver unit is further configured to perform data communication to the public data network PDN based on the IPV6 prefix and the DNS proxy lease. 8. A data card switching device, characterized in that, applied to network equipment, the device comprising: a processing unit, configured to acquire the network type supported by the second SIM card when the data card is switched from the first SIM card to the second SIM card; A transceiver unit, configured to send a first route advertisement message to the terminal device when the network type is IPV6, where the first route advertisement message carries the IPV6 prefix of the second SIM card and the DNS proxy lease of the domain name system. 9. A chip, characterized by comprising a processor, a memory, and a computer program or instruction stored on the memory, the processor executing the computer program or instruction to implement claims 1-3 or as claimed in claims The data card switching method described in any one of 4-6. 10. A chip module, characterized by comprising a transceiver component and a chip, the chip comprising a processor, a memory, and a computer program or instruction stored on the memory, the processor executing the computer program or instruction In order to realize the data card switching method according to any one of claims 1-3 or claims 4-6. 11. An electronic device comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured by The processor executes the program comprising instructions for performing the steps in the method of any of claims 1-3 or any of claims 4-6. 12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform as claimed in claims 1-3 or as claimed in claims The steps of any one of 4-6.

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