CN114567912B - Method, system, device and storage medium for switching operator network - Google Patents

Method, system, device and storage medium for switching operator network Download PDF

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Publication number
CN114567912B
CN114567912B CN202210122871.5A CN202210122871A CN114567912B CN 114567912 B CN114567912 B CN 114567912B CN 202210122871 A CN202210122871 A CN 202210122871A CN 114567912 B CN114567912 B CN 114567912B
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network
sim card
operator
target server
request
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CN114567912A (en
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陶震
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Alibaba Cloud Computing Ltd
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Alibaba Cloud Computing Ltd
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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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The embodiment of the application provides an operator network switching method, an operator network switching system, an operator network switching device and a storage medium. The method comprises the following steps: the operator network switching method is suitable for a Subscriber Identity Module (SIM) card communicated with the 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 device to send a 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 for 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, the hardware or software on the terminal equipment is not required to be modified, the development or upgrading difficulty of the terminal equipment side is reduced, and the scheme universality is improved.

Description

Method, system, device and storage medium for switching operator network
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 carrier network switching.
Background
With the continuous development of cellular network technology, more and more terminal devices, for example: the mobile phone, the intelligent home equipment, the intelligent wearable equipment and the intelligent automobile are connected with the cellular network through the user identification card (Subscriber Identity Module, SIM) so as to realize network communication.
Currently, there is a multi-network SIM card that has rights 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, a multi-network SIM card needs to detect connectivity of a network and control selection of an operator network through a software development kit (Software Development Kit, SDK) provided in a terminal device, that is, a developer of the terminal device is required to integrate an adapted SDK in the terminal device. This is more difficult for some industries, such as the smart home industry.
Disclosure of Invention
In view of the foregoing, the present application has been made to provide an operator network switching method, system, apparatus, and storage medium that solve or at least partially solve the foregoing problems.
Thus, in one embodiment of the present application, there is provided an operator network switching method adapted to a subscriber identity card, 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;
transmitting the network access command to the terminal device to transmit 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 for the network request.
In yet another embodiment of the present application, an operator network switching method is provided, which is applicable to a terminal device in communication with a Subscriber Identity Module (SIM) card; the method comprises the following steps:
Receiving a network access command aiming at a target server and sent by the SIM card; the network access command carries a network request aiming at the target server;
According to the network access command, sending the network request to the target server;
and after receiving response information returned by the target server for the network request, sending the response information to the SIM card so as to determine whether to switch the operator network by the SIM card.
In yet another embodiment of the present application, there is provided a communication system including: a Subscriber Identity Module (SIM) card and a terminal device which 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 used for: according to the network access command, sending the network request to the target server;
The SIM card is also used for: and determining whether to switch the operator network according to the response data of the target server for 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 is used for storing instructions;
The processor is coupled to the memory and configured to execute the instructions stored in the memory to implement the carrier network switching method of any one of the above.
In a further embodiment of the application, a readable storage medium is provided storing instructions that when executed by a processor enable the carrier network switching method of any one of the above.
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 the form of a command, and the terminal equipment sends the network request carried in the command to the target server after receiving the command; and the SIM card automatically determines whether to switch the operator network according to the response data of the target server for 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, the hardware or software on the terminal equipment is not required to be modified, the development or upgrading difficulty of the terminal equipment side is reduced, and the scheme universality can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application;
fig. 2 is a flow chart of an operator network switching method according to an embodiment of the present application;
fig. 3 is a flowchart of an operator network switching method according to an embodiment of the present application;
fig. 4 is a flowchart of an operator network switching method according to an embodiment of the present application;
Fig. 5 is a flowchart of an operator network switching 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
In general, the SIM card is disposed in the terminal device, and a cellular communication module in the terminal device communicates with the SIM card, so as to implement network communication of the terminal device. Currently, highly available multi-network smart SIM cards are required to be used with SDKs integrated within terminal devices, through which network connectivity is detected and operator network selection is controlled. The adaptive SDKs are designed for different terminal devices and integrated into the terminal devices. This is difficult for some industries, such as the smart home industry. In general, intelligent home appliance enterprises have no special maintenance manager to perform modification and upgrade of control functions related to network connectivity detection functions and operator network switching on specific devices.
In order to solve or partially solve the above-mentioned problem, the embodiment of the present application proposes a new operator network switching scheme, in which the SIM card automatically generates a network request for a target server, and sends the network request to a terminal device in the form of a command, and after receiving the command, the terminal device sends the network request carried in the command to the target server; and the SIM card automatically determines whether to switch the operator network according to the response data of the target server for 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, the hardware or software on the terminal equipment is not required to be modified, the development or upgrading difficulty of the terminal equipment side is reduced, and the scheme universality can be improved.
In order to enable those skilled in the art to better understand the present application, the following description will clearly and completely describe the technical solution according to the embodiments of the present application according to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Furthermore, in some of the flows described in the specification, claims, and drawings above, a plurality of operations occurring in a particular order may be included, and the operations may be performed out of order or concurrently with respect to the order in which they occur. The sequence numbers of operations such as 101, 102, etc. are merely used to distinguish between the various operations, and the sequence numbers themselves do not represent any order of execution. In addition, 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" and "second" herein are used to distinguish different messages, devices, modules, etc., and do not represent a sequence, and are not limited to the "first" and the "second" being different types.
Before introducing the method for switching the operator network provided by the embodiment of the application, the system architecture related to the embodiment of the 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 card SIM card 1 and a terminal device 2 communicating with each other.
The SIM card is used for: determining a network access command aiming at a target server 3, wherein the network access command carries a network request aiming at the target server 3; transmitting the network access command to the terminal device 2;
the terminal device 2 is configured to: according to the network access command, sending the network request to the target server 3;
The SIM card 1 is also used for: and determining whether to switch the operator network according to the response data of the target server 3 for the network request.
The target server 3 and the terminal device 2 may be connected through an IP network, and communication protocols between the two may include, but are not limited to, TCP protocol, UDP protocol, and GPRS protocol. The user identification card SIM card 1 and the terminal equipment 2 are connected by a power supply and a data transmission, and the power supply and the data transmission can be communicated by a data transmission connection line; the terminal device 2 supplies power to the SIM card via a power connection line.
The SIM card 1 stores network access authentication information of a plurality of operator networks. The network entry authentication information may include, but is not limited to, code number data such as: international mobile subscriber identity (International Mobile Subscriber Identification Number, IMSI). The mobile device may communicate with the SIM card via its internal cellular communication module, and may communicate between the two using APDU (Application Protocol Data Unit ) protocols. The mobile device may be a mobile phone or an internet of things device capable of using a cellular network, and may support Windows, android, IOS, windowsphone operating systems, 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 (Bearer Independent Protocol, BIP) may also be established between the subscriber identity card SIM card 1 and the terminal device 2. The specific implementation will be described in detail in the following examples.
Fig. 2 is a flow chart illustrating a data processing method according to an embodiment of the application. The method is suitable for 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 entry authentication information may include, but is not limited to: international mobile subscriber identity (International Mobile Subscriber Identification Number, IMSI). The mobile device may communicate with the SIM card via its internal cellular communication module, and may communicate between the two using APDU (ApplicationProtocolDataUnit ) protocols. The mobile device may be a mobile phone or an internet of things device capable of using a cellular network, and may support Windows, android, IOS, windowsphone operating systems, 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 aiming at 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 for the network request.
Currently, the communication between the SIM card and the mobile device is mostly based on APDU protocol. The APDU protocol specifies that the device can only actively initiate a command to the SIM card, and the SIM card responds, that is, the SIM card cannot actively issue a command to the device. Thus, the SIM card side may use or multiplex the command sent by the mobile device to the SIM card to send the network access command to the terminal device by responding to the command.
In practical applications, the terminal device typically frequently sends commands to the SIM card, for example: the status acquisition command (F2 command) is sent periodically to the SIM card, and the Event Download command (Event Download command) is sent aperiodically to the SIM card. When the terminal equipment drops 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 dropped; when the terminal device is connected with a new base station, the terminal device sends an event downloading command to the SIM card so as to inform the SIM card that the terminal device is connected with the new base station.
In an example, after receiving the command sent by the terminal device, the SIM card may directly perform steps 101 and 102 described above.
In another example, after receiving the command sent by the terminal device, the SIM card determines whether a preset condition is currently satisfied, and if the preset condition is satisfied, steps 101 and 102 are executed; if the preset condition is not satisfied, the above steps 101 and 102 are not performed.
In one possible scheme, after receiving a command sent by a terminal device, a 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 the SIM card receives a command sent by the terminal equipment, judging the time interval of last sending of a network access command to the terminal equipment from the current distance; if the time interval is greater than or equal to the preset time length, judging that the preset condition is met currently; if the time interval is smaller than the preset time length, judging that the preset condition is not met currently.
In 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 handover of 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 the operator network, the network switching request may include identification information of the SIM card and information of the operator network currently used by the SIM card.
In 102, the SIM card sends a 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 the above 103, the response data may include: the received response information returned by the target server for the network request or the unreceived indication information for indicating that the response information returned by the target server for the network request is not received after timeout. In an example, the response data may further include a response delay. The response time delay can be specifically a waiting time period from the time when the SIM card sends the network access command to the time when the SIM card receives response information returned by the target server for the network request, wherein the response information is forwarded by the terminal equipment.
Taking the network request as an example of the network switching request for requesting to switch the operator network, 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 be implemented by:
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 message may include indication information regarding a network switch. If the indication information indicates that the network needs to be switched, determining to switch the network of the operator; and if the indication information indicates that the network does not need to be switched, determining that the network of the operator is not switched.
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 the 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 determined to be different from the operator network currently used by the SIM card, generating indication information for indicating that the network needs to be switched; if the target operator network is determined to be the operator network currently used by the SIM card, indicating information for indicating that the network does not need to be switched is generated. The target server transmits the generated indication information as response information to the terminal device.
Optionally, in the step 103, 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, determining to switch operator networks when the response data includes no indication information received.
In this embodiment, the target server determines whether or not network switching is required. When the terminal equipment or the SIM card does not receive the response information returned by the target server for the network switching request after timeout, the operator network can be determined to be abnormal, so that the operator network is determined to be required to be switched in order to ensure the normal communication of the terminal equipment.
Taking the network request as an example of the network probe request for probing the network quality of the operator, 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 be implemented by:
1031b, determining the network quality of the operator network currently used by the SIM card according to the response data of the target server for the network probe request.
1032B, determining whether to switch the operator network according to the network quality.
In one example, when the response time delay is included in the response data, the network quality is determined based on the response time delay. The longer the response delay, the poorer the network quality. The network quality meets the preset communication requirement, and the operator network is determined not to be switched; and determining that the network quality does not meet the preset communication requirement and switching the network of the operator. The preset communication requirements may be set according to actual needs, which is not particularly limited in the embodiment of the present application.
In another example, the network probe request is a plurality of. In practical application, the number of network detection requests carried in the network access command is multiple; 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 can sequentially send a plurality of network access commands to the terminal equipment, and the terminal equipment 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 the following steps:
s11, determining response index information according to response data of the target server for a plurality of network detection requests.
Wherein the response index information includes: response time delay and/or packet loss rate.
And S12, determining the network quality of the operator network currently used by the SIM card according to the response index information.
In S11, the plurality of network probe requests include a first network probe request. The first network probe request refers to any one of a plurality of network probe requests. The response data comprises response information returned by the target server aiming at the first network detection request and response time delay thereof or unreceived prompt information corresponding to the first network detection request. The fact that the prompt information is not received corresponding to the first network detection request means that the SIM card does not receive response information returned by the target server for the first network detection request within a preset time period.
According to the response data of the target server for a plurality of network detection requests, response index information such as response time delay and/or packet loss rate can be statistically determined.
In 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 poorer 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 poorer 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 time 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 can be designed according to actual needs, and the embodiment of the application is not limited in particular.
In this embodiment, the SIM card detects the network quality of the operator 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 the target server and sends the network request to the terminal equipment in the form of a command, and the terminal equipment sends the network request carried in the command to the target server after receiving the command; and the SIM card automatically determines whether to switch the operator network according to the response data of the target server for 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, the hardware or software on the terminal equipment is not required to be modified, the development or upgrading difficulty of the terminal equipment side is reduced, and the scheme universality can be improved.
Optionally, the "determining the network access command for the target server" in 101 may be implemented by the following steps:
1011. The network request is determined.
1012. And acquiring communication protocol parameters required by the terminal equipment configured in the SIM card to communicate with the target server.
1013. And 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.
In the above 1011, the above network request may specifically include a network handover request for requesting handover of an operator network or a network probe request for probing the quality of an operator network.
The specific content or format of the network handover request or the network probe request may be set according to actual needs, which is not specifically limited in the embodiment of the present application.
In 1012 above, the communication protocol parameters 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, network protocol type. Network protocol types may include, but are not limited to: TCP (Transmission Control Protocol ) type, UDP (User Datagram Protocol, user packet protocol) type.
In 1013, a command template may be obtained, and the communication protocol parameter and the network request may be added to the command template, thereby obtaining a 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 sends the encapsulated network request to the target server. The specific packaging process is referred to in the prior art and will not be described in detail herein.
In practice, 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 steps of:
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 above 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 a terminal device, the SIM card sends an opening command related to a data communication channel based on a bearer independent protocol to the terminal device; 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 so as to inform the SIM card channel to be established.
Optionally, the method may further include:
105. when the network of the operator is determined to be switched, the target network access authentication information is determined 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 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 the 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 the other operator networks stored in the SIM card is a plurality of, the target network access authentication information can be determined from the network access authentication information of the plurality of other operator networks. The specific determination manner may be set according to actual needs, and the embodiment of the present application is not limited thereto. 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 network access authentication information of the plurality of other operator networks according to priorities of the plurality of other operator networks, for example: and taking the network access authentication information of the 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, where the priorities may be configurable by the user.
In 106, after determining the target network access authentication information, the SIM card sends the target network access authentication information to the terminal device, so that the terminal device accesses the operator network corresponding to the target network access authentication information according to the target network access authentication information.
The process of the terminal equipment accessing the operator network corresponding to the target access authentication information according to the target access authentication information specifically comprises the following stages: cell search, system information transfer, random access, etc. The specific implementation of each stage is referred to in the prior art and will not be described in detail here.
The following describes in detail the technical scheme provided by the embodiment of the present application 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. After receiving the information acquisition command, the SIM card selects network access authentication information of a first operator network from the stored network access authentication information of a plurality of operator networks, and sends the network access authentication information to the terminal equipment so that the terminal equipment accesses the first operator network.
203. And the terminal equipment sends an F2 command or an Event downlink command to the SIM card.
204. 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. After receiving the first response information, the terminal equipment sends a first fetch command to the SIM card according to first indication information in the first response information.
206. 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 a bearing independent protocol.
207. After receiving the second response information, the terminal equipment opens the data communication channel based on the bearing independent protocol according to the command which is carried in the second response information and is used for opening the data communication channel based on the bearing independent protocol; and sends confirmation information to the SIM card.
The terminal device sends confirmation information to the SIM card, which indicates that the data communication channel based on the bearer independent protocol is established.
208. And after the SIM card receives the confirmation information, a network access command aiming at the target server is sent to the terminal equipment through the data communication channel.
209. After receiving the network access command, the terminal equipment encapsulates the network request carried in the network access command according to the communication protocol parameter 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 the SIM card receives the message with the ready downlink data, acquiring response information from the terminal equipment through the data communication channel.
213. And the SIM card determines whether to switch the operator network according to the response information.
In practical applications, the steps 203 to 213 are repeated.
The following describes in detail the technical scheme provided by the embodiment of the present application 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. After receiving the information acquisition command, the SIM card selects network access authentication information of a first operator network from the stored network access authentication information of a plurality of operator networks, and sends the network access authentication information to the terminal equipment so that the terminal equipment accesses the first operator network. .
303. And the terminal equipment sends an F2 command or an Event downlink command to the SIM card.
304. 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. After receiving the first response information, the terminal equipment sends a first fetch command to the SIM card according to first indication information in the first response information.
306. 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 a bearing independent protocol.
307. After receiving the second response information, the terminal equipment opens the data communication channel based on the bearing independent protocol according to the command which is carried in the second response information and is used for opening the data communication channel based on the bearing independent protocol; and sends confirmation information to the SIM card.
The terminal device sends confirmation information to the SIM card, which indicates that the data communication channel based on the bearer independent protocol is established.
308. And after the SIM card receives the confirmation information, a network access command aiming at the target server is sent to the terminal equipment through the data communication channel.
309. After receiving the network access command, the terminal equipment encapsulates the network request carried in the network access command according to the communication protocol parameter carried in the network access command, and sends the encapsulated network request to the target server.
310. If the SIM card is overtime and does not receive the message that the downlink data sent by the terminal equipment is ready, 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 flow chart of an operator network switching method according to an embodiment of the present application. The method is suitable for the terminal equipment which communicates with the SIM card of the subscriber identity module card. Wherein the method comprises the following steps:
401. And receiving a network access command which is sent by the SIM card and aims at the target server.
The network access command carries a network request aiming at the target server.
402. And sending the network request to the target server according to the network access command.
403. And after receiving response information returned by the target server for the network request, sending the response information to the SIM card so as to determine whether to switch the operator network by the SIM card.
Currently, the communication between the SIM card and the mobile device is mostly based on APDU protocol. The APDU protocol specifies that the device can only actively initiate a command to the SIM card, and the SIM card responds, that is, the SIM card cannot actively issue a command to the device. Thus, the SIM card side may use or multiplex the command sent by the mobile device to the SIM card to send the network access command to the terminal device by responding to the command.
In practical applications, the terminal device typically frequently sends commands to the SIM card, for example: the status acquisition command (F2 command) is sent periodically to the SIM card, and the Event Download command (Event Download command) is sent aperiodically to the SIM card. When the terminal equipment drops 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 dropped; when the terminal device is connected with a new base station, the terminal device sends an event downloading command to the SIM card so as to inform the SIM card that the terminal device is connected with the new base station.
In 401 above, 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 handover of 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 the operator network, the network switching request may include identification information of the SIM card and information of the operator network currently used by the SIM card.
The specific implementation of the steps 401, 402 and 403 may be referred to the corresponding content in the 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 the form of a command, and the terminal equipment sends the network request carried in the command to the target server after receiving the command; and the SIM card automatically determines whether to switch the operator network according to the response data of the target server for 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, the hardware or software on the terminal equipment is not required to be modified, the development or upgrading difficulty of the terminal equipment side is reduced, and the scheme universality can be improved.
In an example, the network access command further carries communication protocol parameters required by 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 packaged network request to the target server.
Wherein the communication protocol parameters may include: address information (e.g., IP address), port number, and communication protocol type of the target server.
What needs to be explained here is: details of each step in the method provided in the embodiment of the present application may be referred to corresponding details in the above embodiment, which are not described herein. In addition, the method provided in the embodiment of the present application may further include other part or all of the steps in the above embodiments, and specific reference may be made to the corresponding content of the above embodiments, which is not repeated herein.
Yet another embodiment of the present application provides an operator network switching apparatus, which is provided in a SIM card. The device comprises:
The first determining module 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;
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 for 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 device further includes:
the establishing module is used for establishing a data communication channel between the SIM card and the terminal equipment based on a bearer independent protocol;
The sending module is 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 receiving a target command sent by the terminal equipment, establishing a data communication channel between the SIM card and the terminal equipment based on a bearer independent protocol.
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 for the network switching request, determining whether to switch an operator network according to the response information;
And the terminal equipment sends the response information to the SIM card after receiving the response information returned by the target server.
Optionally, the second determining module is specifically configured to:
When the response data comprises the prompt information which is not received, determining to switch the operator network;
The non-received 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: network probe requests for probing the quality of an operator network.
Optionally, the second determining module is specifically configured to:
According to the response data of the target server for the network detection request, determining the network quality of the operator network currently used by the SIM card;
and determining whether to switch the operator network according to the network quality.
Optionally, the network probe request 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 detection requests, wherein the response index information comprises: response time 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 includes:
The third determining module is used for determining target network access authentication information from network access authentication information of other operator networks stored in the SIM card when the operator networks are determined to be switched; the other operator networks are 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.
What needs to be explained here is: the network switching device provided in the foregoing embodiments may implement the technical solutions described in the foregoing method embodiments, and the specific implementation principles of the foregoing modules may refer to corresponding contents in the foregoing method embodiments, which are not described herein again.
Still another embodiment of the present application provides an operator network switching apparatus, which is provided in a terminal device. The device comprises:
the first receiving module is used for receiving a network access command which is sent by the SIM card and aims at the target server; the network access command carries a network request aiming at the target server;
The sending module is used for sending 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 communication protocol parameters required by the terminal device to communicate with the target server;
optionally, the sending module is specifically configured to:
encapsulating the network request according to the communication protocol parameters to obtain the encapsulated network request;
And sending the packaged network request to the target server.
What needs to be explained here is: the network switching device provided in the foregoing embodiments may implement the technical solutions described in the foregoing method embodiments, and the specific implementation principles of the foregoing modules may refer to corresponding contents in the foregoing method embodiments, which are not described herein again.
Fig. 6 is 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 various other 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 of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The memory 1101 is configured to store instructions;
The processor 1102 is coupled to the memory 1101, and is configured to execute the instructions stored in the memory 1101, so as to implement the operator network switching method provided in the above 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 device, the communication device may also include a display 1104, a power component 1105, an audio component 1106, and other components. Only part of the components are schematically shown in fig. 6, which does not mean that the terminal device only comprises the components shown in fig. 6.
Correspondingly, the embodiment of the application also provides a readable storage medium storing instructions, and the instructions can realize the steps or functions of the operator network switching method provided by the above method embodiments when being executed by a processor.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (13)

1. An operator network switching method is suitable for a Subscriber Identity Module (SIM) card communicated with terminal equipment; the SIM card stores network access authentication information of more than two operator networks; 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;
transmitting the network access command to the terminal device to transmit the network request to the target server by the terminal device;
Determining whether to switch an operator network according to response data of the target server for the network request;
When determining to switch the operator network, determining target network access authentication information from network access authentication information of other operator networks stored in the SIM card; the other operator networks are 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.
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 between the SIM card and the terminal equipment based on a bearer independent protocol;
the sending the network access command to the terminal equipment comprises the following steps:
and sending the network access command to the terminal equipment through the data communication channel.
4. A method according to claim 3, wherein establishing a bearer independent protocol based data communication channel between the SIM card and the terminal device comprises:
and when receiving a target command sent by the terminal equipment, establishing a data communication channel between the SIM card and the terminal equipment based on a bearer independent protocol.
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 the operator network according to the response data of the target server for the network request, including:
when the response data comprises response information returned by the target server for the network switching request, determining whether to switch an operator network according to the response information;
And the terminal equipment sends the response information to the SIM card after receiving the response information returned by the target server.
6. The method of claim 5, wherein determining whether to handover an operator network based on response data of the target server to the network request, further comprises:
When the response data comprises the prompt information which is not received, determining to switch the operator network;
The non-received 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.
7. The method of any of claims 1-4, wherein the network request comprises: a network probe request for probing the quality of the operator network;
Determining whether to switch the operator network according to the response data of the target server for the network request, including:
According to the response data of the target server for the network detection request, determining the network quality of the operator network currently used by the SIM card;
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 a plurality of;
according to the response data of the target server for the network probe request, determining the network quality of the operator network currently used by the SIM card, including:
Determining response index information according to response data of the target server for a plurality of network detection requests, wherein the response index information comprises: response time 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. An operator network switching method is suitable for terminal equipment communicating with a Subscriber Identity Module (SIM) card; the SIM card stores network access authentication information of more than two operator networks; the method comprises the following steps:
Receiving a network access command aiming at a target server and sent by the SIM card; the network access command carries a network request aiming at the target server;
According to the network access command, sending the network request to the target server;
after receiving response information returned by the target server for the network request, sending the response information to the SIM card so as to determine whether to switch an operator network by the SIM card;
when determining to switch the operator network, the SIM card determines target network access authentication information from network access authentication information of other operator networks stored in the SIM card, and sends the target network access authentication information to the terminal equipment so that the terminal equipment accesses the operator network corresponding to the target network access authentication information according to the target network access authentication information; the other operator network is different from the operator network currently used by the SIM card.
10. The method of claim 9, wherein the network access command further carries communication protocol parameters required by the terminal device to communicate with the target server;
according to the network access command, sending the network request to the target server, including:
encapsulating the network request according to the communication protocol parameters to obtain the encapsulated network request;
And sending the packaged network request to the target server.
11. A communication system, comprising: a Subscriber Identity Module (SIM) card and a terminal device which are communicated with each other; the SIM card stores network access authentication information of more than two operator networks;
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 used for: according to the network access command, sending the network request to the target server;
The SIM card is also used for: determining whether to switch an operator network according to response data of the target server for the network request; when determining to switch the operator network, determining target network access authentication information from network access authentication information of other operator networks stored in the SIM card; the other operator networks are 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.
12. A communication apparatus, comprising: a memory and a processor, wherein,
The memory is used for storing instructions;
the processor, coupled to the memory, for executing the instructions stored in the memory to implement the carrier network switching method of any one of claims 1 to 10.
13. A readable storage medium storing instructions which, when executed by a processor, enable the operator network handover method of any one of claims 1 to 10.
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