CN109756882B - Communication method, system, SMSR and computer readable storage medium - Google Patents
Communication method, system, SMSR and computer readable storage medium Download PDFInfo
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- CN109756882B CN109756882B CN201711066895.9A CN201711066895A CN109756882B CN 109756882 B CN109756882 B CN 109756882B CN 201711066895 A CN201711066895 A CN 201711066895A CN 109756882 B CN109756882 B CN 109756882B
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Abstract
The disclosure relates to a communication method, a communication system, an SMSR and a computer readable storage medium, and relates to the technical field of communication. The method of the present disclosure comprises: a SMSR (subscription management secure routing platform) of a first network receives a request sent by a user for downloading a second network configuration file on a user card, wherein the user card is currently configured to be connected with the first network; and the SMSR informs a subscription management data preparation platform SMDP of the first network to issue a second network configuration file to the user card, so that the SMDP issues the second network configuration file to the user card through the first network. The method and the device improve the signaling flow of downloading the configuration file based on the GSMA protocol, so that the terminal does not need to download the configuration file through second network roaming, the terminal is not influenced by the network roaming support capability any more, and the realization complexity is reduced.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a communication method, a communication system, an SMSR, and a computer-readable storage medium.
Background
A user Card, such as a SIM (Subscriber identity Module), a UICC (Universal Integrated Circuit Card), etc., is an encapsulated smart IC Card with a microprocessor, which is a carrier of user data in mobile communication and a certificate for network access authentication.
With the rapid development of the application of the internet of things, remote management based on a user card such as an eSIM or an eUICC and remote downloading and activation of a profile are widely applied. The terminal can realize over-the-air number writing by remotely downloading and activating the configuration files of different networks, and can switch the number without changing the card. The GSMA (global system for mobile communications association) has made Remote Provisioning (Remote Provisioning) international specifications based on eSIM and the like on the basis of various schemes. The method provides possibility for the code number switching of the terminal of the Internet of things across regions and operators. For example: a point of global sales of vehicles, smartwatches, etc. is made, requiring the terminal to switch networks of different countries, different operators during the life cycle.
In the existing standard and technical scheme, when the code number switching of the operator is realized, the network of the operator needs to support the roaming capability of the short message and the data, so that the terminal is used for communicating with the original network server in the target network to complete the downloading and activation of the configuration file of the target network.
Disclosure of Invention
The inventor finds that: because roaming agreements among operators do not cover global operators, a method for switching code numbers in a target network based on data roaming in the existing scheme may not be applicable in some regions. Further, relatively complicated implementation means are required between different types of mobile networks. And the adaptation of such roaming is a process that needs to be continuously updated as new network technologies are applied. This situation restricts the flexible deployment of services.
One technical problem to be solved by the present disclosure is: the code number switching of the user card among different networks is realized under the condition of not being influenced by the network roaming support capability.
According to some embodiments of the present disclosure, there is provided a communication method including: a SMSR (subscription management secure routing platform) of a first network receives a request sent by a user for downloading a second network configuration file on a user card, wherein the user card is currently configured to be connected with the first network; and the SMSR informs a subscription management data preparation platform SMDP of the first network to issue a second network configuration file to the user card, so that the SMDP issues the second network configuration file to the user card through the first network.
In some embodiments, the method further comprises: the SMSR receives a request for activating a second network configuration file at a user card, wherein the request is sent by a user; the SMSR informs the user card to activate the second network configuration file through the first network so that the user card can deactivate the first network configuration file and activate the second network configuration file, and the user card can access the second network according to the configuration file when entering the second network.
In some embodiments, the SMSR receives a request sent by the user to activate the second network profile at the same time as receiving a switch timer sent by the user; the SMSR sends the switching timer to the user card through a first network; and under the condition that the user card completes the access of the second network within the time of the switching timer, the SMSR receives a switching success message reported by the user card and changes the network state information of the user card.
In some embodiments, in the event that the subscriber card does not complete access to the second network within the switchover timer time, the subscriber card deactivates the second network profile and reactivates the first network profile.
In some embodiments, before the SMSR notifying the SMDP of the first network to issue the second network profile to the user card, further comprises: SMSR informs user card to open BIP channel; and the SMSR establishes a secure data channel between the user card and the SMDP under the condition of receiving a confirmation message of opening the BIP channel of the user card, so that the SMDP sends a second network configuration file to the user card through the secure data channel.
According to some embodiments of the present disclosure, a subscription management secure routing platform is provided, including: the download request receiving module is used for receiving a request sent by a user for downloading a second network configuration file on a user card, the user card is currently configured to be connected with a first network, and the signing management security routing platform belongs to the first network; and the download notification module is used for notifying the subscription management data preparation platform SMDP of the first network to issue the second network configuration file to the user card so that the SMDP issues the second network configuration file to the user card through the first network.
In some embodiments, the subscription management secure routing platform further comprises: the activation request receiving module is used for receiving a request sent by a user for activating a second network configuration file on a user card; and the activation notification module is used for notifying the user card to activate the second network configuration file through the first network so that the user card can deactivate the first network configuration file and activate the second network configuration file, and the user card can access the second network according to the configuration file when entering the second network.
In some embodiments, the activation request receiving module is further configured to receive a switching timer sent by the user while the user card is requesting to activate the second network profile; the activation notification module is also used for sending the switching timer to the user card through the first network; the signing management security routing platform further comprises: and the switching message receiving module is used for receiving a switching success message reported by the user card and changing the network state information of the user card under the condition that the user card completes the access of the second network within the time of the switching timer.
In some embodiments, the subscription management secure routing platform further comprises: and the secure channel establishing module is used for informing the user card to open the BIP channel of the bearer independent protocol, and establishing the secure data channel between the user card and the SMDP under the condition of receiving a confirmation message of the user card for opening the BIP channel so that the SMDP can send a second network configuration file to the user card through the secure data channel.
According to some embodiments of the present disclosure, there is provided a communication system including: the subscription management secure routing platform of any of the preceding embodiments; and the signing management data preparation platform SMDP is used for issuing a second network configuration file to the user card through the first network.
In some embodiments, the communication system further comprises: and the user card is used for receiving the notification of activating the second network configuration file and the switching timer which are sent by the SMSR, sending a switching success message to the SMSR under the condition that the access of the second network is completed within the switching timer time, deactivating the second network configuration file under the condition that the access of the second network is not completed within the switching timer time, and reactivating the first network configuration file.
According to some embodiments of the present disclosure, a subscription management secure routing platform is provided, including: a memory; and a processor coupled to the memory, the processor configured to perform the communication method of any of the preceding embodiments based on instructions stored in the memory device.
According to some embodiments of the present disclosure, there is provided a computer program stored thereon, wherein the program, when executed by a processor, implements the communication method of any of the preceding embodiments.
According to the method and the device, the user initiates a download request of the second network configuration file when in the first network, and the SMSR of the first network informs the SMDP to issue the second network configuration file to the user card, so that the user card can complete the download of the second network configuration file in the first network, and the network connection can be directly carried out by using the configuration file of the second network after entering the second network. The method and the device improve the signaling flow of downloading the configuration file based on the GSMA protocol, so that the terminal does not need to download the configuration file through second network roaming, the terminal is not influenced by the network roaming support capability any more, and the realization complexity is reduced.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 illustrates a flow diagram of a communication method of some embodiments of the present disclosure.
Fig. 2 shows a flow diagram of a communication method of further embodiments of the present disclosure.
Fig. 3 shows a flow diagram of a communication method of further embodiments of the present disclosure.
Fig. 4 illustrates an architectural diagram of a subscription management secure routing platform of some embodiments of the present disclosure.
Fig. 5 illustrates a structural schematic diagram of a communication system of some embodiments of the present disclosure.
Fig. 6 illustrates a schematic structural diagram of a subscription management secure routing platform according to further embodiments of the present disclosure.
Fig. 7 illustrates a schematic structural diagram of a subscription management secure routing platform according to further embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The invention discloses a signaling flow for improving a terminal to switch code numbers based on a GSMA protocol, and provides a scheme for realizing code number switching of a user card among different networks under the condition of not being influenced by network roaming support capacity.
The present disclosure proposes a communication method, which is described below in conjunction with fig. 1.
Fig. 1 is a flow chart of some embodiments of the disclosed communication method. As shown in fig. 1, the method of this embodiment includes: steps S102 to S106.
Step S102, the user sends a request for downloading the second network configuration file on the user card to the SMSR of the first network, and correspondingly, the SMSR of the first network receives the request for downloading the second network configuration file on the user card sent by the user.
The user card is currently configured to connect to a first network. The User card may be a SIM, UICC, UIM (User identity Module), eSIM, eUICC, or the like. The first network and the second network belong to different operator networks. The user can be a producer or a user of the terminal, a user card is arranged in the terminal, and when the terminal needs to enter a second network from a first network and realize code number switching, the user can initiate a request for downloading a second network configuration file on the user card. The second network configuration file comprises authentication information and the like required by the user card to access the second network.
For example, a vehicle manufacturer wants to sell a car from china to the united states, after the car is produced, the car manufacturer first uses the china carrier network to perform communication, and before the car is transported, the vehicle manufacturer sends a request to the china carrier SMSR to download a configuration file of the united states carrier network in a user card of the car. For another example, a user wearing a smart watch staying with japan in china, wishing for the smart watch to be able to communicate in japan using the network of the japanese carrier without international roaming, may initiate a request to the china carrier SMSR to download the configuration file of the japanese carrier network in the user card before going to japan.
The SMSR (Subscription Manager Secure Routing) platform is mainly responsible for managing user card information, establishing a Secure channel between the SMDP (Subscription Manager Data provisioning) platform and the user card, and the like. The SMSR may provide an interface to the user, for example, the user may log in to the SMSR management terminal and user card through a browser, application, or the like.
When determining the second network entered by the terminal, the user may pre-specify the corresponding relationship between the second network and the user card at SMSR or SMDP, so that the second network identifier may be defaulted when sending a request for downloading the second network profile at the user card. The identifier of the second network may also be carried in the request for downloading the second network profile by the user card.
Step S104, the SMSR informs the SMDP of the first network to send a second network configuration file to the user card.
The SMDP is mainly used to store service data of the user, such as IMSI, authentication related information, etc., and the user card may download the second network profile from the SMDP.
And step S106, the SMDP transmits a second network configuration file to the user card through the first network.
In the method of the above embodiment, the user initiates a download request of the second network configuration file in the first network, and the SMSR of the first network notifies the SMDP to issue the second network configuration file to the user card, so that the user card completes download of the second network configuration file in the first network, and network connection can be performed directly using the configuration file of the second network after entering the second network. The method of the embodiment improves the configuration file downloading signaling flow based on the GSMA protocol, so that the terminal does not need to download the configuration file through second network roaming, the terminal is not influenced by the network roaming support capability any more, and the realization complexity is reduced.
The user card may be automatically activated after completing the download of the second network profile or the activation of the second network profile may be controlled by the user. Further, it is necessary to monitor whether the terminal is successfully connected to the second network. Further embodiments of the communication method of the present disclosure are described below in conjunction with fig. 2.
Fig. 2 is a flow chart of further embodiments of the communication method of the present disclosure. As shown in fig. 2, after step S106, the method may further include: steps S108 to S116.
Step S108, the user sends a request for activating the second network configuration file on the user card to the SMSR, and correspondingly, the SMSR receives the request for activating the second network configuration file on the user card sent by the user.
The user can select the time for activating the second network configuration file according to actual requirements, and initiate a request for activating the second network configuration file on the user card.
In step S110, the SMSR notifies the user card to activate the second network profile through the first network.
The SMSR may send a notification to the user card through a short message activating the second network profile.
In step S112, the user card deactivates the first network profile and activates the second network profile.
Further, in order to determine whether the user card can be successfully accessed to the second network and ensure that the user card can still be used when the user card cannot be accessed to the second network, step S109 may be performed while step S108 is performed.
Step S109, the user sends a switching timer to the SMSR, and accordingly, the SMSR receives the switching timer sent by the user.
The user can set the time of the switching timer according to the actual service. When the time for the terminal to enter the second network from the first network is longer, the timer is set for a longer time. Otherwise, a shorter time is set. For example, when a car is transported from china to the united states, a week is probably needed, the car production can set the timer to be about ten days, and the switching can be completed within ten days of the terminal.
Step S111 may also be performed while step S110 is performed.
Step S111, the SMSR sends a switch timer to the user card through the first network.
Step S114 may also be included after step S112.
Step S114, the user card reports the switching success information to the SMSR under the condition that the user card completes the access of the second network in the switching timer, and the SMSR changes the network state information of the user card after receiving the switching success information.
And the user card starts the switching timer after receiving the switching timer. After the terminal reaches the second network, the terminal can perform a registration process to the second network according to the second network configuration file when the terminal is started or restarted, the successful switching is indicated under the condition that the registration is successful within the time of the switching timer, and a switching success message is reported to the SMSR.
Step S116, when the user card does not complete the access of the second network in the switching timer, the user card deactivates the second network configuration file and reactivates the first network configuration file.
And if the access of the second network is not completed within the time of the switching timer, the user card automatically rolls back to reactivate the first network configuration file. The terminal is prevented from losing connection with the network and being unable to find.
The method of the embodiment sets the switch timer in the user card so as to know whether the user card can access the second network, and the user card automatically re-accesses the first network when the user card cannot access the second network, thereby avoiding the terminal losing connection with the network.
Further embodiments of the communication method of the present disclosure are described below in conjunction with fig. 3.
Fig. 3 is a flow chart of further embodiments of the communication method of the present disclosure. As shown in fig. 3, the method of this embodiment includes: steps S302 to S332.
In step S302, the user sends a request to the SMSR of the first network to download the second network profile on the user card.
Step S304, the SMSR sends a short message to the user card through the first network to request to open a BIP (Bear Independent Protocol) channel.
The reason why SMSR requires the user card to open the BIP may be identified as downloading a new second network profile. The BIP channel is a channel through which the user card communicates with an external network. The SMSR sends a short message which requires to open a BIP channel to the terminal, and the short message is sent to the user card by the terminal.
Step S306, the user card opens the BIP channel and sends confirmation information for opening the BIP channel to the SMSR.
Step S308, the SMSR establishes a secure data channel between the user card and the SMDP and informs the SMDP to send a second network configuration file to the user card.
Step S310, the SMDP sends a second network configuration file to the user card through the secure data channel.
In step S312, the user card sends a message that the downloading of the second network configuration file is successful to the user through the SMSR.
Step S314, the user sends a request for activating the second network configuration file on the user card to the SMSR, and carries a switch timer.
Step S316, the SMSR sends a short message to inform the user card to activate the second network configuration file through the first network, and sends a switching timer to the user card.
In step S318, the user card activates the second network profile and starts the switch timer.
In step S320, the user card attempts to access the second network using the second network profile within the time of the handover timer. If the access is successful, step S322 is performed, and if the access is failed, step S332 is performed.
Step S322, the user card reports the switching success to the SMSR.
In step S324, the SMSR changes the network status information of the user card.
In step S326, the SMSR replies a handover success confirmation message to the user card.
In step S328, the SMSR sends a handover success message to the user.
In step S330, the user card cancels the switch timer.
In step S332, the user card reactivates the first network profile.
The present disclosure also provides a subscription management secure routing platform, which is described below with reference to fig. 4.
Fig. 4 is a block diagram of some embodiments of a subscription management secure routing platform of the present disclosure. As shown in fig. 4, the SMSR40 of this embodiment includes: a download request receiving module 402 and a download notification module 404.
A download request receiving module 402, configured to receive a request sent by a user to download a second network configuration file on a user card, where the user card is currently configured to connect to a first network, and the subscription management security routing platform belongs to the first network.
And a download notification module 404, configured to notify the subscription management data preparation platform SMDP of the first network to issue the second network configuration file to the user card, so that the SMDP issues the second network configuration file to the user card through the first network.
In some embodiments, the SMSR40 may also include: an activation request receiving module 406, an activation notification module 408, and a handover message receiving module 410.
An activation request receiving module 406, configured to receive a request sent by a user to activate the second network profile on the user card.
Optionally, the activation request receiving module 406 is further configured to receive a switching timer sent by the user while receiving the request sent by the user card to activate the second network profile.
The activation notification module 408 is configured to notify the user card of activating the second network profile through the first network, so that the user card deactivates the first network profile and activates the second network profile, and accesses the second network according to the second network profile when entering the second network.
Optionally, the activation notification module 408 is further configured to send the switch timer to the user card through the first network.
Optionally, the SMSR40 may further include: a switching message receiving module 410, configured to receive a switching success message reported by the user card and change the network state information of the user card when the user card completes the access of the second network within the time of the switching timer.
In some embodiments, the SMSR40 may also include: the secure tunnel establishing module 412 is configured to notify the user card to open a bearer independent protocol BIP tunnel, and establish a secure tunnel between the user card and the SMDP when receiving a confirmation message of the user card to open the BIP tunnel, so that the SMDP issues the second network configuration file to the user card through the secure tunnel.
The present disclosure also provides a communication system, described below in conjunction with fig. 5.
Fig. 5 is a block diagram of some embodiments of the communication system of the present disclosure. As shown in fig. 5, the communication system 5 of the embodiment includes: SMSR40 in any of the preceding embodiments, and SMDP 51.
And the SMDP51 is used for issuing a second network configuration file to the user card through the first network.
In some embodiments, the communication system 5 may further include: and the user card 52 is used for receiving the notification of activating the second network configuration file and the switching timer which are sent by the SMSR40, sending a switching success message to the SMSR40 when the access of the second network is completed within the switching timer time, deactivating the second network configuration file and reactivating the first network configuration file when the access of the second network is not completed within the switching timer time.
The subscription management secure routing platform in embodiments of the present disclosure may each be implemented by a variety of computing devices or computer systems, as described below in conjunction with fig. 6 and 7.
Fig. 6 is a block diagram of some embodiments of a subscription management secure routing platform apparatus of the present disclosure. As shown in fig. 6, the apparatus 60 of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610, the processor 620 configured to perform a communication method in any of the embodiments of the present disclosure based on instructions stored in the memory 610.
Fig. 7 is a block diagram of further embodiments of a subscription management secure routing platform according to the present disclosure. As shown in fig. 7, the apparatus 70 of this embodiment includes: memory 710 and processor 720 are similar to memory 610 and processor 620, respectively. An input output interface 730, a network interface 740, a storage interface 750, and the like may also be included. These interfaces 730, 740, 750, as well as the memory 710 and the processor 720, may be connected, for example, by a bus 760. The input/output interface 730 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 740 provides a connection interface for various networking devices, such as a database server or a cloud storage server. The storage interface 750 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also provides a computer-readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the steps of the communication method of any of the preceding embodiments.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (12)
1. A method of communication, comprising:
a SMSR (subscription management secure routing platform) of a first network receives a request sent by a user for downloading a second network configuration file on a user card, wherein the user card is currently configured to be connected with the first network;
the SMSR informs a signing management data preparation platform (SMDP) of a first network to issue a second network configuration file to the user card so that the SMDP issues the second network configuration file to the user card through the first network;
the SMSR receives a request sent by a user for activating a second network configuration file by a user card and also receives a switching timer sent by the user, wherein the time of the switching timer is set by the user according to actual services;
and the SMSR sends the switching timer to the user card through the first network, so that the user card deactivates the second network configuration file and reactivates the first network configuration file under the condition that the user card does not finish the access of the second network within the time of the switching timer.
2. The communication method of claim 1, further comprising:
and the SMSR informs the user card of activating a second network configuration file through the first network so that the user card can deactivate the first network configuration file and activate the second network configuration file, and the user card can access the second network according to the configuration file when entering the second network.
3. The communication method according to claim 1 or 2, wherein, in case that the subscriber card completes the access of the second network within the handover timer time, the SMSR receives the handover success message reported by the subscriber card and changes the subscriber card network state information.
4. The communication method according to any one of claims 1 or 2,
before the SMSR notifies the SMDP of the first network to issue a second network profile to the user card, the method further includes:
the SMSR informs the user card to open a Bearer Independent Protocol (BIP) channel;
and the SMSR establishes a secure data channel between the user card and the SMDP under the condition of receiving a confirmation message of opening a BIP channel of the user card, so that the SMDP transmits the second network configuration file to the user card through the secure data channel.
5. A subscription management secure routing platform, comprising:
a download request receiving module, configured to receive a request sent by a user to download a second network configuration file on a user card, where the user card is currently configured to connect to a first network, and the subscription management security routing platform belongs to the first network;
a download notification module, configured to notify a subscription management data preparation platform SMDP of a first network to issue a second network configuration file to the user card, so that the SMDP issues the second network configuration file to the user card through the first network;
an activation request receiving module, configured to receive a request sent by a user to activate a second network configuration file by a user card, and also receive a switching timer sent by the user, where time of the switching timer is set by the user according to an actual service;
and the activation notification module is used for sending the switching timer to the user card through the first network, so that the user card deactivates the second network configuration file and reactivates the first network configuration file under the condition that the user card does not finish the access of the second network within the time of the switching timer.
6. The subscription management secure routing platform of claim 5, further comprising:
and the activation notification module is used for notifying the user card to activate the second network configuration file through the first network so that the user card can deactivate the first network configuration file and activate the second network configuration file, and the user card can access the second network according to the configuration file when entering the second network.
7. A subscription management secure routing platform as claimed in claim 5 or 6, further comprising:
and the switching message receiving module is used for receiving the switching success message reported by the user card and changing the network state information of the user card under the condition that the user card completes the access of a second network within the time of a switching timer.
8. A subscription management secure routing platform as claimed in claim 5 or 6, further comprising:
and the secure channel establishing module is used for informing the user card of opening a Bearer Independent Protocol (BIP) channel, and establishing the secure data channel between the user card and the SMDP under the condition of receiving a confirmation message of opening the BIP channel of the user card so that the SMDP can issue the second network configuration file to the user card through the secure data channel.
9. A communication system, comprising:
a subscription management secure routing platform, SMSR, as claimed in any of claims 5-8; and
and the signing management data preparation platform SMDP is used for issuing a second network configuration file to the user card through a first network.
10. The communication system of claim 9, further comprising:
and the user card is used for receiving the notification of activating the second network configuration file and the switching timer which are sent by the SMSR, sending a switching success message to the SMSR under the condition that the access of the second network is completed within the switching timer time, and deactivating the second network configuration file and reactivating the first network configuration file under the condition that the access of the second network is not completed within the switching timer time.
11. A subscription management secure routing platform, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the communication method of any of claims 1-4 based on instructions stored in the memory device.
12. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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