CN114567912A - Operator network switching method, system, device and storage medium - Google Patents

Operator network switching method, system, device and storage medium Download PDF

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Publication number
CN114567912A
CN114567912A CN202210122871.5A CN202210122871A CN114567912A CN 114567912 A CN114567912 A CN 114567912A CN 202210122871 A CN202210122871 A CN 202210122871A CN 114567912 A CN114567912 A CN 114567912A
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China
Prior art keywords
network
target server
sim card
request
operator
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CN202210122871.5A
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Chinese (zh)
Inventor
陶震
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Alibaba Cloud Computing Ltd
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Alibaba Cloud Computing Ltd
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Priority to CN202210122871.5A priority Critical patent/CN114567912A/en
Publication of CN114567912A publication Critical patent/CN114567912A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The embodiment of the application provides a method, a system, a device and a storage medium for switching operator networks. The method comprises the following steps: the operator network switching method is suitable for a Subscriber Identity Module (SIM) card communicated with terminal equipment; the method comprises the following steps: determining a network access command aiming at a target server, wherein the network access command carries a network request aiming at the target server; sending a network access command to the terminal equipment so as to send a network request to the target server by the terminal equipment; and determining whether to switch the operator network according to the response data of the target server to the network request. According to the technical scheme provided by the embodiment of the application, the SIM card can autonomously control the switching of the operator network, the terminal equipment only needs to forward the network request to the target server, hardware or software on the terminal equipment does not need to be modified, the development or upgrading difficulty of the terminal equipment side is reduced, and the universality of the scheme can be improved.

Description

Operator network switching method, system, device and storage medium
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, a system, an apparatus, and a storage medium for operator network handover.
Background
With the continuous development of cellular network technology, more and more terminal devices, such as: the mobile phone, the smart home device, the smart wearable device and the smart car are connected with the cellular network through a Subscriber Identity Module (SIM) card, so that network communication is realized.
Currently, there is a multi-network SIM card with the authority to use multiple operator networks, such as: a multi-network SIM card may use the networks of three operators china mobile, china telecom, china unicom. In the prior art, the multi-network SIM card needs to detect the connectivity of the network and control the selection of the operator network through a Software Development Kit (SDK) provided in the terminal device, that is, a developer of the terminal device is required to integrate an adapted SDK in the terminal device. This is difficult for certain industries, such as the smart appliance industry.
Disclosure of Invention
In view of the above, the present application is proposed to provide an operator network handover method, system, device and storage medium that solve the above problems, or at least partially solve the above problems.
Therefore, in an embodiment of the present application, an operator network switching method is provided, which is suitable for a subscriber identity module SIM card in communication with a terminal device; the method comprises the following steps:
Determining a network access command aiming at a target server, wherein the network access command carries a network request aiming at the target server;
sending the network access command to the terminal device to send the network request to the target server by the terminal device;
and determining whether to switch the operator network according to the response data of the target server to the network request.
In another embodiment of the present application, an operator network switching method is provided, which is applied to a terminal device in communication with a subscriber identity module SIM card; the method comprises the following steps:
receiving a network access command which is sent by the SIM card and aims at a target server; the network access command carries a network request aiming at the target server;
sending the network request to the target server according to the network access command;
and after response information returned by the target server aiming at the network request is received, sending the response information to the SIM card so that the SIM card determines whether to switch the operator network.
In another embodiment of the present application, there is provided a communication system, including: the SIM card and the terminal equipment are communicated with each other;
The SIM card is used for: determining a network access command aiming at a target server, wherein the network access command carries a network request aiming at the target server; sending the network access command to the terminal equipment;
the terminal device is configured to: sending the network request to the target server according to the network access command;
the SIM card is further configured to: and determining whether to switch the operator network according to the response data of the target server to the network request.
In yet another embodiment of the present application, a communication device is provided. The communication device includes: a memory and a processor, wherein,
the memory to store instructions;
the processor, coupled to the memory, is configured to execute the instructions stored in the memory to implement any of the above-mentioned operator network handover methods.
In yet another embodiment of the present application, a readable storage medium storing instructions is provided, wherein the instructions, when executed by a processor, can implement any of the above-mentioned operator network handover methods.
In the technical scheme provided by the embodiment of the application, the SIM card automatically generates a network request aiming at a target server and sends the network request to the terminal equipment in a command form, and after receiving the command, the terminal equipment only needs to send the network request carried in the command to the target server; and subsequently, the SIM card automatically determines whether to switch the operator network according to the response data of the target server to the network request. Therefore, in the technical scheme provided by the embodiment of the application, the SIM card can autonomously control the switching of the operator network, the terminal equipment only needs to forward the network request to the target server, and hardware or software on the terminal equipment does not need to be modified, so that the development or upgrading difficulty of the terminal equipment side is reduced, and the universality of the scheme can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following descriptions are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic flowchart of an operator network handover method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of an operator network handover method according to an embodiment of the present application;
fig. 4 is a flowchart illustrating an operator network handover method according to an embodiment of the present application;
fig. 5 is a flowchart illustrating an operator network handover method according to an embodiment of the present application;
fig. 6 is a block diagram of a communication device according to an embodiment of the present application.
Detailed Description
Generally, the SIM card is disposed in the terminal device, and a cellular communication module in the terminal device communicates with the SIM card to implement network communication of the terminal device. Currently, highly available multi-network smart SIM cards need to be used with SDKs integrated in the terminal device, to probe the connectivity of the network and to control the choice of operator network through the SDK. And designing the adaptive SDK aiming at different terminal equipment and integrating the SDK into the terminal equipment. This makes development difficult for some industries, such as the smart home appliance industry. Generally, no special maintenance manager is provided for the intelligent household appliance enterprise to perform modification and upgrade on the network connectivity detection function and the control function of operator network switching on a specific device.
In order to solve or partially solve the above problems, in the solution, an SIM card automatically generates a network request for a target server and sends the network request to a terminal device in a command form, and after receiving the command, the terminal device sends the network request carried in the command to the target server; and subsequently, the SIM card automatically determines whether to switch the operator network according to the response data of the target server to the network request. Therefore, in the technical scheme provided by the embodiment of the application, the SIM card can autonomously control the switching of the operator network, the terminal equipment only needs to forward the network request to the target server, and hardware or software on the terminal equipment does not need to be modified, so that the development or upgrading difficulty of the terminal equipment side is reduced, and the universality of the scheme can be improved.
In order to make the technical scheme of the present application better understood, the technical scheme of the embodiment of the present application will be clearly and completely described below according to the drawings in the embodiment of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Further, in some flows described in the specification, claims, and above-described figures of the present application, a number of operations are included that occur in a particular order, which operations may be performed out of order or in parallel as they occur herein. The sequence numbers of the operations, e.g., 101, 102, etc., are merely used to distinguish between the various operations, and the sequence numbers themselves do not represent any order of execution. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel. It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different.
Before introducing the operator network switching method provided by the embodiment of the present application, a system architecture related to the embodiment of the present application is introduced. Fig. 1 shows a block diagram of a communication system according to an embodiment of the present application. Wherein, the system includes: a subscriber identity module card SIM card 1 and a terminal device 2 communicating with each other.
The SIM card is used for: determining a network access command for a target server 3, wherein the network access command carries a network request for the target server 3; sending the network access command to the terminal device 2;
The terminal device 2 is configured to: sending the network request to the target server 3 according to the network access command;
the SIM card 1 is further configured to: and determining whether to switch the operator network according to the response data of the target server 3 to the network request.
The target server 3 and the terminal device 2 may be connected through an IP network, and the communication protocol between the two may include, but is not limited to, a TCP protocol, a UDP protocol, and a GPRS protocol. The SIM card 1 of the subscriber identity module card and the terminal equipment 2 are connected by power supply and data transmission, and can communicate with each other through a data transmission line; the terminal device 2 supplies power to the SIM card through a power connection line.
The SIM card 1 stores network access authentication information of a plurality of operator networks. The network access authentication information may include, but is not limited to, code number data, such as: international Mobile Subscriber identity Number (IMSI). The mobile device can communicate with the SIM card through its internal cellular communication module, and can communicate with the SIM card by using an APDU (Application Protocol Data Unit) Protocol. The mobile device may be a mobile phone or an internet of things device capable of using a cellular network, may support operating systems such as Windows, Android, IOS, Windows phone, and may generally communicate with other mobile phones or other internet of things devices in the internet of things, and a cloud server.
In order to enable the SIM card 1 to communicate with the target server 3, a data transmission channel based on a Bearer Independent Protocol (BIP) may also be established between the SIM card 1 and the terminal device 2. The specific implementation process will be described in detail in the following embodiments.
Fig. 2 shows a schematic flowchart of a data processing method according to an embodiment of the present application. The method is applicable to a Subscriber Identity Module (SIM) card which is communicated with the terminal equipment. The SIM card stores network access authentication information of a plurality of operator networks. The network access authentication information may include, but is not limited to: international Mobile Subscriber identity Number (IMSI). The mobile device may communicate with the SIM card through its internal cellular communication module, and may communicate with the SIM card by using an APDU (application protocol data unit) protocol. The mobile device may be a mobile phone or an internet of things device capable of using a cellular network, may support operating systems such as Windows, Android, IOS, Windows phone, and may generally communicate with other mobile phones or other internet of things devices in the internet of things, and a cloud server. As shown in fig. 2, the method includes:
101. A network access command for the target server is determined.
The network access command carries a network request for the target server.
102. And sending the network access command to the terminal equipment so as to send the network request to the target server by the terminal equipment.
103. And determining whether to switch the operator network according to the response data of the target server to the network request.
At present, the communication between the SIM card and the mobile device is mostly based on the APDU protocol. However, the APDU protocol specifies that the device can only actively initiate a command to the SIM card and then respond to the command by the SIM card, that is, the SIM card cannot actively issue a command to the device. Therefore, the side of the SIM card can utilize or multiplex the command sent by the mobile device to the SIM card, and send the network access command to the terminal device by responding to the command.
In practical applications, the terminal device will generally frequently send commands to the SIM card, such as: a state acquisition command (F2 command) is periodically sent to the SIM card, and an Event Download command (Event Download command) is non-periodically sent to the SIM card. When the terminal equipment is disconnected from a base station, the terminal equipment sends an event downloading command to the SIM card so as to inform the SIM card that the terminal equipment is disconnected; when the terminal equipment is connected with a new base station, the terminal equipment sends an event downloading command to the SIM card to inform the SIM card that the terminal equipment is connected with the new base station.
In one example, the SIM card can directly perform the above steps 101 and 102 after receiving the command sent by the terminal device.
In another example, after receiving a command sent by the terminal device, the SIM card determines whether a preset condition is currently satisfied, and if the preset condition is satisfied, executes the above steps 101 and 102; if the preset condition is not satisfied, the steps 101 and 102 are not executed.
In an implementation scheme, after receiving a command sent by a terminal device, an SIM card judges whether the command is a target command; if the command is a target command, judging that the preset condition is met currently; otherwise, judging that the preset condition is not met currently. In another implementation scheme, after receiving a command sent by a terminal device, an SIM card judges a time interval of last sending a network access command to the terminal device at the current distance; if the time interval is greater than or equal to a preset time length, judging that a preset condition is currently met; and if the time interval is less than the preset time length, judging that the preset condition is not met currently.
In the foregoing 101, the target server may be a third-party server or a preset test server. The network request may specifically include a network handover request for requesting to handover the operator network or a network probe request for probing the quality of the operator network.
When the network request includes a network switching request for requesting to switch an operator network, the network switching request may include identification information of the SIM card and operator network information currently used by the SIM card.
In the foregoing 102, the SIM card sends the network access command to the terminal device. And the terminal equipment sends the network request in the network access command to the target server according to the network access command.
In 103, the response data may include: the received response information returned by the target server for the network request or the non-received indication information used for indicating that the response information returned by the target server for the network request is not received after time out. In one example, the response data may further include a response delay. The response delay may specifically be a waiting time between the time when the SIM card issues the network access command and the time when the SIM card receives a response message returned by the target server for the network request, where the response message is forwarded by the terminal device.
Taking a network request as a network handover request for requesting to switch an operator network, the step 103 of "determining whether to switch an operator network according to response data of the target server to the network request" may be implemented by adopting the following steps:
1031a, when the response data includes response information returned by the target server for the network request, determining whether to switch the operator network according to the response information.
In one example, the reply information may include an indication of a network handover. If the indication information indicates that the network needs to be switched, determining to switch the operator network; and if the indication information indicates that the network does not need to be switched, determining not to switch the operator network.
The target server can determine a plurality of operator networks supported by the SIM card and tariff information and/or residual flow corresponding to each operator network according to the identification information of the SIM card in the network switching request, and can determine a target operator network from the plurality of operator networks according to the plurality of operator networks supported by the SIM card and the tariff information and/or residual flow corresponding to each operator network; if the target operator network is different from the operator network currently used by the SIM card, generating indication information for indicating that the network needs to be switched; and if the target operator network is determined to be the operator network currently used by the SIM card, generating indication information for indicating that the network does not need to be switched. The target server transmits the generated instruction information as response information to the terminal device.
Optionally, the step 103 of determining whether to switch the operator network according to the response data of the target server to the network request may further include the following steps:
1032a, when the response data includes the non-reception indication information, determining to switch the operator network.
In this embodiment, the target server determines whether a network switch is required. When the terminal equipment or the SIM card does not receive response information returned by the target server for the network switching request after overtime, the operator network can be determined to be abnormal, and therefore, the operator network is determined to need to be switched in order to ensure normal communication of the terminal equipment.
Taking a network request as a network probing request for probing the network quality of an operator as an example, in the foregoing 103, "determining whether to switch an operator network according to response data of the target server to the network request" may be implemented by adopting the following steps:
1031b, determining the network quality of the operator network currently used by the SIM card according to the response data of the target server to the network probing request.
1032b, determining whether to switch the operator network according to the network quality.
In one example, network quality is determined based on response latency when response latency is included in the response data. The longer the response delay, the worse the network quality. The network quality meets the preset communication requirement, and the operator network is determined not to be switched; and determining to switch operator networks when the network quality does not meet the preset communication requirement. The preset communication requirement may be set according to actual needs, which is not specifically limited in the embodiment of the present application.
In another example, the network probe request is multiple. In actual application, a plurality of network detection requests are carried in the network access command; after receiving the network access command, the terminal device may sequentially send a plurality of network probe requests to the target server. Or, the network detection request carried in the network access command is one, the SIM card may sequentially send a plurality of network access commands to the terminal device, and the terminal device sends the network detection request carried in the network access command to the target server after receiving the network access command sent by the SIM card. Therefore, in 1031b, "determining the network quality of the operator network currently used by the SIM card according to the response data of the target server to the network probe request" may be implemented by adopting the following steps:
S11, determining response index information according to the response data of the target server to the network detection requests.
Wherein the response indicator information includes: response delay and/or packet loss rate.
S12, according to the response index information, determining the network quality of the operator network currently used by the SIM card.
In step S11, the plurality of network probe requests includes the first network probe request. The first network probe request refers to any one of a plurality of network probe requests. The response data includes response information returned by the target server for the first network detection request and response delay thereof or unreceived prompt information corresponding to the first network detection request. The non-reception prompt information corresponding to the first network probe request means that the SIM card does not receive response information returned by the target server for the first network probe request within a preset time period.
According to the response data of the target server aiming at the network detection requests, response index information such as response time delay and/or packet loss rate can be determined statistically.
In the above S12, in an example, the response index information includes a response delay. And determining the network quality according to the response time delay. The larger the response delay, the worse the network quality.
In another example, the response indicator information includes a packet loss rate. And determining the network quality according to the packet loss rate. The larger the packet loss rate, the worse the network quality.
In yet another example, the response indicator information includes a response delay and a packet loss rate. And determining the network quality according to the response time delay and the packet loss rate. The response delay and the packet loss rate can be input into a calculation formula, and the network quality is determined according to the output result of the calculation formula. The calculation formula may be designed according to actual needs, and this is not specifically limited in this embodiment of the present application.
In this embodiment, the SIM card detects the quality of the operator network, so as to decide whether to perform network handover.
In the technical scheme provided by the embodiment of the application, the SIM card automatically generates a network request aiming at a target server and sends the network request to the terminal equipment in a command form, and after receiving the command, the terminal equipment only needs to send the network request carried in the command to the target server; and subsequently, the SIM card automatically determines whether to switch the operator network according to the response data of the target server to the network request. Therefore, in the technical scheme provided by the embodiment of the application, the SIM card can autonomously control the switching of the operator network, the terminal equipment only needs to forward the network request to the target server, and hardware or software on the terminal equipment does not need to be modified, so that the development or upgrading difficulty of the terminal equipment side is reduced, and the universality of the scheme can be improved.
Optionally, the step 101 of determining the network access command for the target server may be implemented by:
1011. the network request is determined.
1012. And acquiring communication protocol parameters required by the communication between the terminal equipment configured in the SIM card and the target server.
1013. And determining a network access command aiming at the target server according to the communication protocol parameter and the network request.
The network access command carries the communication protocol parameter and the network request.
In the 1011, the network request may specifically include a network handover request for requesting to switch the operator network or a network probe request for probing the quality of the operator network.
The specific content or format of the network switching request or the network probing request may be set according to actual needs, which is not specifically limited in this embodiment of the application.
In 1012, a communication protocol parameter required for the terminal device to communicate with the target server may be stored in the SIM card in advance. The communication protocol parameters may include, but are not limited to, address information of the target server, port number, and network protocol type. Network protocol types may include, but are not limited to: a TCP (Transmission Control Protocol) type, and a UDP (User data Protocol) type.
In 1013, a command template may be obtained, and the communication protocol parameter and the network request are added to the command template, so as to obtain the network access command for the target server.
In this embodiment, after receiving the network access command, the terminal device only needs to encapsulate the network request carried in the network access command according to the communication protocol parameter carried in the network access command, and send the encapsulated network request to the target server. The specific packaging process can be referred to in the prior art, and is not described in detail here.
In practical applications, the communication between the SIM card and the target server may be implemented based on a Bearer Independent Protocol (Bearer Independent Protocol). The method further comprises the following steps:
104. and establishing a data communication channel between the SIM card and the terminal equipment based on a bearer independent protocol.
Accordingly, the "sending the network access command to the terminal device" in 102 includes:
1021. and sending the network access command to the terminal equipment through the data communication channel.
In the foregoing 104, the SIM card may establish a data communication channel based on a bearer independent protocol between the SIM card and the terminal device when receiving a target command sent by the terminal device. The target command may be an F2 command or an Event Download command.
Specifically, when receiving a target command sent by the terminal equipment, the SIM card sends an open command related to a data communication channel based on a bearer independent protocol to the terminal equipment; and after receiving the opening command, the terminal equipment opens a data communication channel based on the bearer independent protocol and sends determination information to the terminal equipment to inform that the SIM card channel is established.
Optionally, the method may further include:
105. and when the operator network is determined to be switched, determining target network access authentication information from the network access authentication information of other operator networks stored in the SIM card.
Wherein the other operator network is different from the operator network currently used by the SIM card.
106. And sending the target network access authentication information to the terminal equipment, so that the terminal equipment accesses an operator network corresponding to the target network access authentication information according to the target network access authentication information.
In the above 105, the SIM card may store network access authentication information of two or more operator networks in advance.
When the network access authentication information of other operator networks stored in the SIM card is one, the network access authentication information of the other operator networks can be directly used as target network access authentication information.
When the network access authentication information of other operator networks stored in the SIM card is multiple, the target network access authentication information can be determined from the network access authentication information of the other operator networks. The specific determination manner may be set according to actual needs, which is not specifically limited in this embodiment of the present application. In one example, one of the network access authentication information of the plurality of other operator networks may be randomly determined as the target network access authentication information. In another example, the target network access authentication information may be determined from the network access authentication information of the multiple other operator networks according to priorities of the multiple other operator networks, for example: and taking the network access authentication information of other operator networks with the highest priority as target network access authentication information. In this embodiment, the priorities of two or more operator networks may be stored in the SIM card in advance, wherein the priorities may be configured by the user.
In the above 106, after the SIM card determines the target access authentication information, the SIM card sends the target access authentication information to the terminal device, so that the terminal device accesses the operator network corresponding to the target access authentication information according to the target access authentication information.
The process that the terminal equipment accesses the operator network corresponding to the target network access authentication information according to the target network access authentication information specifically comprises the following stages: cell search, system information transfer, random access and the like. The specific implementation process of each stage can be referred to in the prior art, and is not detailed here.
The technical solution provided by the embodiment of the present application will be described in detail below with reference to fig. 3:
as shown in fig. 3:
201. and after the terminal equipment is started, sending an information acquisition command to the SIM card.
202. And after receiving the information acquisition command, the SIM card selects the network access authentication information of the first operator network from the stored network access authentication information of the plurality of operator networks, and sends the network access authentication information of the first operator network to the terminal equipment so that the terminal equipment can access the first operator network.
203. The terminal device sends an F2 command or an Event Download command to the SIM card.
204. And after receiving the F2 command or the Event Download command, the SIM card returns first response information to the terminal equipment, wherein the first response information carries first indication information.
The first indication information is used for indicating that the SIM card has a command which needs to be sent to the terminal equipment.
205. And after receiving the first response message, the terminal device sends a first fetch command to the SIM card according to the first indication message in the first response message.
206. And after receiving the first fetch command, the SIM card returns second response information to the terminal equipment, wherein the second response information carries a command for opening a data communication channel based on the bearer independent protocol.
207. After receiving the second response message, the terminal device opens the data communication channel based on the bearer independent protocol according to a command for opening the data communication channel based on the bearer independent protocol carried in the second response message; and sends a confirmation message to the SIM card.
And the terminal equipment sends confirmation information to the SIM card, which indicates that a data communication channel based on the bearer independent protocol is established.
208. And after receiving the confirmation information, the SIM card sends a network access command aiming at the target server to the terminal equipment through the data communication channel.
209. And after receiving the network access command, the terminal equipment encapsulates the network request carried in the network access command according to the communication protocol parameters carried in the network access command and sends the encapsulated network request to the target server.
210. And after receiving the network request, the target server returns response information aiming at the network request to the terminal equipment.
211. And after receiving the response information, the terminal equipment sends a message that the downlink data is ready to the SIM card through the data communication channel.
212. And after receiving the message that the downlink data is prepared, the SIM card acquires response information from the terminal equipment through the data communication channel.
213. And the SIM card determines whether to switch the operator network or not according to the response information.
In practical applications, the steps 203 to 213 are repeated.
The technical solution provided by the embodiment of the present application will be described in detail below with reference to fig. 4:
as shown in fig. 4:
301. and after the terminal equipment is started, sending an information acquisition command to the SIM card.
302. And after receiving the information acquisition command, the SIM card selects the network access authentication information of the first operator network from the stored network access authentication information of the plurality of operator networks, and sends the network access authentication information of the first operator network to the terminal equipment so that the terminal equipment can access the first operator network. .
303. The terminal device sends an F2 command or an Event Download command to the SIM card.
304. And after receiving the F2 command or the Event Download command, the SIM card returns first response information to the terminal equipment, wherein the first response information carries first indication information.
The first indication information is used for indicating that the SIM card has a command which needs to be sent to the terminal equipment.
305. And after receiving the first response message, the terminal device sends a first fetch command to the SIM card according to the first indication message in the first response message.
306. And after receiving the first fetch command, the SIM card returns second response information to the terminal equipment, wherein the second response information carries a command for opening a data communication channel based on the bearer independent protocol.
307. After receiving the second response message, the terminal device opens the data communication channel based on the bearer independent protocol according to a command for opening the data communication channel based on the bearer independent protocol carried in the second response message; and sends an acknowledgement to the SIM card.
And the terminal equipment sends confirmation information to the SIM card, which indicates that a data communication channel based on the bearer independent protocol is established.
308. And after receiving the confirmation information, the SIM card sends a network access command aiming at the target server to the terminal equipment through the data communication channel.
309. And after receiving the network access command, the terminal equipment encapsulates the network request carried in the network access command according to the communication protocol parameters carried in the network access command and sends the encapsulated network request to the target server.
310. And if the SIM card does not receive the message that the downlink data sent by the terminal equipment is prepared after overtime, the SIM card determines the target network access authentication information from the network access authentication information of other operator networks stored in the SIM card.
In practical applications, the steps 303 to 310 are repeated.
Fig. 5 shows a flowchart of an operator network handover method provided in an embodiment of the present application. The method is suitable for the terminal equipment which is communicated with the SIM card of the subscriber identity module card. The method comprises the following steps:
401. and receiving a network access command which is sent by the SIM card and aims at a target server.
The network access command carries a network request for the target server.
402. And sending the network request to the target server according to the network access command.
403. And after response information returned by the target server aiming at the network request is received, sending the response information to the SIM card so that the SIM card determines whether to switch the operator network.
At present, the communication between the SIM card and the mobile device is mostly based on the APDU protocol. However, the APDU protocol specifies that the device can only actively initiate a command to the SIM card and then respond to the command by the SIM card, that is, the SIM card cannot actively issue a command to the device. Therefore, the side of the SIM card can utilize or multiplex the command sent by the mobile device to the SIM card, and send the network access command to the terminal device by responding to the command.
In practical applications, the terminal device will generally frequently send commands to the SIM card, such as: a status acquisition command (F2 command) is periodically sent to the SIM card, and an Event Download command (Event Download command) is non-periodically sent to the SIM card. When the terminal equipment is disconnected from a base station, the terminal equipment sends an event downloading command to the SIM card so as to inform the SIM card that the terminal equipment is disconnected; when the terminal equipment is connected with a new base station, the terminal equipment sends an event downloading command to the SIM card to inform the SIM card that the terminal equipment is connected with the new base station.
In the above 401, the target server may be a third party server or a preset test server. The network request may specifically include a network handover request for requesting to handover the operator network or a network probe request for probing the quality of the operator network.
When the network request includes a network switching request for requesting to switch an operator network, the network switching request may include identification information of the SIM card and operator network information currently used by the SIM card.
The specific implementation process of the steps 401, 402, and 403 may refer to the corresponding content in the foregoing embodiments.
In the technical scheme provided by the embodiment of the application, the SIM card automatically generates a network request aiming at the target server and sends the network request to the terminal equipment in a command form, and the terminal equipment receives the command and then sends the network request carried in the command to the target server; and subsequently, the SIM card automatically determines whether to switch the operator network according to the response data of the target server to the network request. Therefore, in the technical scheme provided by the embodiment of the application, the SIM card can autonomously control the switching of the operator network, the terminal equipment only needs to forward the network request to the target server, and hardware or software on the terminal equipment does not need to be modified, so that the development or upgrade difficulty of the terminal equipment side is reduced, and the universality of the scheme can be improved.
In an example, the network access command further carries a communication protocol parameter required for the terminal device to communicate with the target server. The sending the network request to the target server according to the network access command in 402 may include:
4021. and encapsulating the network request according to the communication protocol parameters to obtain the encapsulated network request.
4022. And sending the encapsulated network request to the target server.
The communication protocol parameters may include: address information (e.g., IP address), port number, and communication protocol type of the destination server.
Here, it should be noted that: the contents of each step in the method provided in the embodiment of the present application, which are not described in detail in the foregoing embodiment, may refer to the corresponding contents in the foregoing embodiment, and are not described in detail here. In addition, the method provided in the embodiment of the present application may include, in addition to the above steps, other parts or all of the steps in the above embodiments, and reference may be made to corresponding contents in the above embodiments specifically, which is not described herein again.
The application further provides an operator network switching device, which is arranged in the SIM card. The device includes:
the system comprises a first determining module, a second determining module and a third determining module, wherein the first determining module is used for determining a network access command aiming at a target server, and the network access command carries a network request aiming at the target server;
a sending module, configured to send the network access command to the terminal device, so that the terminal device sends the network request to the target server;
and the second determining module is used for determining whether to switch the operator network according to the response data of the target server to the network request.
Optionally, the first determining module is specifically configured to:
determining the network request;
acquiring communication protocol parameters required by the communication between the terminal equipment configured in the SIM card and the target server;
determining a network access command for the target server according to the communication protocol parameters and the network request;
wherein, the network access command carries the communication protocol parameter and the network request.
Optionally, the apparatus further includes:
the establishing module is used for establishing a data communication channel based on a bearer independent protocol between the SIM card and the terminal equipment;
a sending module, specifically configured to:
and sending the network access command to the terminal equipment through the data communication channel.
Optionally, the establishing module is configured to:
and when a target command sent by the terminal equipment is received, establishing a data communication channel based on a bearer independent protocol between the SIM card and the terminal equipment.
Optionally, the network request includes: a network handover request for requesting handover of an operator network;
optionally, the second determining module is specifically configured to:
When the response data comprises response information returned by the target server aiming at the network switching request, determining whether to switch the operator network according to the response information;
and after receiving the response information returned by the target server, the terminal equipment sends the response information to the SIM card.
Optionally, the second determining module is specifically configured to:
determining to switch operator networks when the response data includes no received prompt information;
the unreceived prompt message is used for indicating that the SIM card does not receive response information returned by the target server within a preset time period.
Optionally, the network request includes: a network probe request for probing operator network quality.
Optionally, the second determining module is specifically configured to:
determining the network quality of an operator network currently used by the SIM card according to the response data of the target server to the network detection request;
and determining whether to switch the operator network according to the network quality.
Optionally, the number of the network probing requests is multiple;
the second determining module is specifically configured to:
Determining response index information according to response data of the target server for a plurality of network probe requests, wherein the response index information comprises: response delay and/or packet loss rate;
and determining the network quality of the operator network currently used by the SIM card according to the response index information.
Optionally, the apparatus further comprises:
a third determining module, configured to determine, when an operator network is determined to be switched, target network access authentication information from network access authentication information of other operator networks stored in the SIM card; the other operator network is different from the operator network currently used by the SIM card;
the sending module is further configured to send the target network access authentication information to the terminal device, so that the terminal device accesses an operator network corresponding to the target network access authentication information according to the target network access authentication information.
Here, it should be noted that: the network switching device provided in the above embodiments may implement the technical solutions described in the above method embodiments, and the specific implementation principle of each module may refer to the corresponding content in the above method embodiments, which is not described herein again.
Another embodiment of the present application provides an operator network switching apparatus, where the apparatus is disposed in a terminal device. The device includes:
The first receiving module is used for receiving a network access command which is sent by the SIM card and aims at a target server; the network access command carries a network request aiming at the target server;
a sending module, configured to send the network request to the target server according to the network access command;
and the second receiving module is used for sending the response information to the SIM card after receiving the response information returned by the target server aiming at the network request so as to determine whether to switch the operator network by the SIM card.
Optionally, the network access command further carries a communication protocol parameter required for the terminal device to communicate with the target server;
optionally, the sending module is specifically configured to:
packaging the network request according to the communication protocol parameters to obtain the packaged network request;
and sending the encapsulated network request to the target server.
Here, it should be noted that: the network switching device provided in the above embodiments may implement the technical solutions described in the above method embodiments, and the specific implementation principle of each module may refer to the corresponding content in the above method embodiments, which is not described herein again.
Fig. 6 shows a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 6, the terminal device includes a memory 1101 and a processor 1102. The memory 1101 may be configured to store other various data to support operations on the terminal device. Examples of such data include instructions for any application or method operating on the terminal device. The memory 1101 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The memory 1101 is used for storing instructions;
the processor 1102 is coupled to the memory 1101, and configured to execute the instructions stored in the memory 1101, so as to implement the operator network handover method provided by the foregoing method embodiments.
The communication device may be a SIM card or a terminal device. Further, as shown in fig. 6, the communication apparatus further includes: a communication component 1103. When the communication device is a terminal equipment, the communication device may also include other components such as a display 1104, a power component 1105, an audio component 1106, and the like. Only some of the components are schematically shown in fig. 6, and the terminal device is not meant to include only the components shown in fig. 6.
Accordingly, the present application further provides a readable storage medium storing instructions, which when executed by a processor, can implement the steps or functions of the operator network handover method provided in the foregoing method embodiments.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (14)

1. A operator network switching method is suitable for a Subscriber Identity Module (SIM) card communicated with terminal equipment; the method comprises the following steps:
determining a network access command aiming at a target server, wherein the network access command carries a network request aiming at the target server;
sending the network access command to the terminal device to send the network request to the target server by the terminal device;
and determining whether to switch the operator network according to the response data of the target server to the network request.
2. The method of claim 1, wherein determining a network access command for a target server comprises:
Determining the network request;
acquiring communication protocol parameters required by the communication between the terminal equipment configured in the SIM card and the target server;
determining a network access command for the target server according to the communication protocol parameters and the network request;
wherein, the network access command carries the communication protocol parameter and the network request.
3. The method of claim 1, further comprising:
establishing a data communication channel based on a bearer independent protocol between the SIM card and the terminal equipment;
the sending the network access command to the terminal device includes:
and sending the network access command to the terminal equipment through the data communication channel.
4. The method of claim 3, wherein establishing a bearer independent protocol based data communication channel between the SIM card and the terminal device comprises:
and when a target command sent by the terminal equipment is received, establishing a data communication channel based on a bearer independent protocol between the SIM card and the terminal equipment.
5. The method of any of claims 1-4, wherein the network request comprises: a network handover request for requesting handover of an operator network;
Determining whether to switch an operator network according to response data of the target server to the network request, including:
when the response data comprises response information returned by the target server aiming at the network switching request, determining whether to switch the operator network according to the response information;
and after receiving the response information returned by the target server, the terminal equipment sends the response information to the SIM card.
6. The method of claim 5, wherein determining whether to switch operator networks based on response data of the target server to the network request further comprises:
when the response data comprises the unreceived prompt message, determining to switch the operator network;
the unreceived prompt message is used for indicating that the SIM card does not receive response information returned by the target server in a preset time period.
7. The method of any of claims 1-4, wherein the network request comprises: a network probe request for probing operator network quality;
determining whether to switch an operator network according to response data of the target server to the network request, comprising:
Determining the network quality of an operator network currently used by the SIM card according to the response data of the target server to the network detection request;
and determining whether to switch the operator network according to the network quality.
8. The method of claim 7, wherein the network probe request is plural;
determining the network quality of the operator network currently used by the SIM card according to the response data of the target server to the network detection request, wherein the determining comprises the following steps:
determining response index information according to response data of the target server for a plurality of network probe requests, wherein the response index information comprises: response delay and/or packet loss rate;
and determining the network quality of the operator network currently used by the SIM card according to the response index information.
9. The method of any of claims 1 to 4, further comprising:
when the operator network is determined to be switched, determining target network access authentication information from the network access authentication information of other operator networks stored in the SIM card; the other operator network is different from the operator network currently used by the SIM card;
and sending the target network access authentication information to the terminal equipment, so that the terminal equipment accesses an operator network corresponding to the target network access authentication information according to the target network access authentication information.
10. A operator network switching method is applicable to terminal equipment which is communicated with a Subscriber Identity Module (SIM) card; the method comprises the following steps:
receiving a network access command which is sent by the SIM card and aims at a target server; the network access command carries a network request aiming at the target server;
sending the network request to the target server according to the network access command;
and after response information returned by the target server aiming at the network request is received, sending the response information to the SIM card so that the SIM card determines whether to switch an operator network.
11. The method according to claim 10, wherein the network access command further carries communication protocol parameters required for the terminal device to communicate with the target server;
sending the network request to the target server according to the network access command, wherein the network request comprises:
packaging the network request according to the communication protocol parameters to obtain the packaged network request;
and sending the encapsulated network request to the target server.
12. A communication system, comprising: the SIM card and the terminal equipment are communicated with each other;
The SIM card is used for: determining a network access command aiming at a target server, wherein the network access command carries a network request aiming at the target server; sending the network access command to the terminal equipment;
the terminal device is configured to: sending the network request to the target server according to the network access command;
the SIM card is further configured to: and determining whether to switch the operator network according to the response data of the target server to the network request.
13. A communication apparatus, comprising: a memory and a processor, wherein,
the memory to store instructions;
the processor, coupled with the memory, configured to execute the instructions stored in the memory to implement the operator network handover method of any of claims 1 to 11.
14. A readable storage medium having instructions stored thereon, wherein the instructions, when executed by a processor, are capable of implementing the operator network handover method of any of claims 1 to 11.
CN202210122871.5A 2022-02-09 2022-02-09 Operator network switching method, system, device and storage medium Pending CN114567912A (en)

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