Method and system for automatically testing cross-network roaming capability of MIFI terminal

Abstract

The invention discloses a method and system for automatically testing the cross-network roaming capability of an MIFI terminal and a medium. A basic test network and at least one roaming place test network related to cross-network roaming places are deployed; collecting NV configuration information and updating an NV configuration information base; constructing an automatic test configuration table and correspondingly updating NV data in the test network to form a basic target network and a roaming destination target network; opening an account of a virtual SIM card used in the to-be-tested MIFI terminal device in the basic test network and the roaming place test network and completing configuration, so that the MIFI terminal device is successfully registered to a base station of the basic target network; and the signal strength of the base stations in the basic test network and the roaming place test network is adjusted, and if the MIFI terminal equipment can be successfully registered to the base station of the roaming place target network, the MIFI terminal equipment has the cross-network roaming capability of the roaming place test network. According to the invention, the problems of high test cost and long test period of the MIFI terminal equipment in the network roaming test before commercial use can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of communication testing, and particularly to a method, a system and a medium for automatically testing the cross-network roaming ability of a MIFI terminal. Background Art

[0002] A MIFI device is a portable broadband wireless device that integrates the functions of a modem, a router, and an access point, and is also a mobile WIFI device based on a virtual SIM card. The MIFI device can provide a low-cost network access solution and reduce international roaming charges. In the use of such a device, scenarios of cross-country and cross-region network roaming are often involved, and communication network configurations that meet specific requirements need to be carried out. The communication network configurations around the world are diverse and very complicated, and the NV configurations involved will significantly affect the network access of the virtual SIM card. Before the MIFI device is commercially available, it is necessary to conduct a comprehensive test on the network roaming problem of the SIM card. At present, the commonly used method in the industry is limited to on-site testing, sending people on business trips or recruiting local testers to use in the actual network to discover problems. This testing method will cause problems such as high testing costs and long cycles, and is also not conducive to early discovery of roaming problems.

[0003] How to reduce the testing cost and try to discover and solve the cross-network roaming problem of the MIFI device as early as possible before on-site commercial use is an urgent problem to be solved in the current industry. Based on the above problems, the applicant proposes the technical solution of this application. Summary of the Invention

[0004] The purpose of the embodiments of the present invention is to provide a method, a system and a medium for automatically testing the cross-network roaming ability of a MIFI terminal, which can solve the problems of high testing cost and long testing cycle in the network roaming test of the MIFI terminal device before commercial use.

[0005] To achieve the above purpose, the present invention discloses a method for automatically testing the cross-network roaming ability of a MIFI terminal, including the following steps:

[0006] Deploy a basic test network and at least one roaming test network related to cross-network roaming areas, where the basic test network and the roaming test network respectively include several key network elements compatible with 4G / 5G communication networks;

[0007] Collect NV configuration information based on the network information of the target roaming area, and update the NV configuration information library based on the NV configuration information, so that the NV configuration information library includes the NV configuration information of multiple target roaming areas;

[0008] Build an automatic test configuration platform. The automatic test configuration platform selects a set of NV configuration information corresponding to the cross-network roaming area from the NV configuration information library as target test parameters, and respectively updates the NV data in the basic test network and the roaming area test network according to the target test parameters to form a basic target network and a roaming area target network;

[0009] Open an account for the virtual SIM card used in the MIFI terminal device to be tested in the basic test network and configure the roaming protocol between the basic network and the roaming area test network, so that the MIFI terminal device successfully registers on the base station of the basic target network;

[0010] Use the automatic test configuration platform to adjust the signal strength of the base stations in the basic test network and the roaming area test network. If the MIFI terminal device can successfully register on the base station of the roaming area target network, the MIFI terminal device has the cross-network roaming ability of the roaming area test network. If the MIFI terminal device cannot successfully register on the base station of the roaming area target network, the MIFI terminal device does not have the cross-network roaming ability of the roaming area test network.

[0011] Preferably, the using the automatic test configuration platform to adjust the signal strength of the base stations in the basic test network and the roaming area test network includes:

[0012] Connect the base stations in the basic test network and the roaming area test network to the attenuator respectively, and connect the attenuator to the automatic test configuration platform and the MIFI terminal device to be tested;

[0013] Use the automatic test configuration platform to control the attenuator, so that the attenuator weakens the signal of the base station in the basic test network and at the same time strengthens the signal of the base station in the roaming area test network.

[0014] Preferably, the key network elements include HSS / UDM network elements, EPC / 5GC network elements, base stations and SMF network elements;

[0015] The HSS is the Home Subscriber Server, and the UDM is the Unified Data Management. The HSS / UDM network element is used to store the subscription information of users;

[0016] The EPC is the Evolved Packet Core Network, and the 5GC is the 5G Core Network. The EPC / 5GC network element is used to manage user sessions, route data traffic, and execute QoS policies;

[0017] The base station is used for wireless communication with the MIFI terminal device;

[0018] The SMF is the session management function, and the SMF network element is used to manage the PDU session of the user.

[0019] Preferably, the test communication network is deployed in a shielded room, and the MIFI terminal device is arranged in the shielded room to participate in the test. The shielded room is an enclosed environment shielded from other signals.

[0020] Preferably, the NV configuration information in the NV configuration information library at least includes SIM card-related parameters, network selection-related parameters, radio frequency antenna-related parameters, and voice data service-related parameters corresponding to the target roaming area; the NV configuration information is classified according to different network indexes in the NV configuration information library.

[0021] Preferably, updating the NV data in the test communication network according to the target test parameters is implemented through the SNMP network management interface.

[0022] The present invention also discloses a system for automatically testing the cross-network roaming ability of an MIFI terminal, including:

[0023] A test network module, configured to deploy a basic test network and at least one roaming area test network involved in cross-network roaming. The basic test network and the roaming area test network respectively include a number of key network elements compatible with 4G / 5G communication networks;

[0024] A configuration information module, configured to collect NV configuration information based on the network information of the target roaming area, update the NV configuration information library based on the NV configuration information, so that the NV configuration information library includes NV configuration information of multiple target roaming areas;

[0025] A network configuration module, configured to construct an automatic test configuration platform. The automatic test configuration platform selects a group of NV configuration information corresponding to the cross-network roaming area from the NV configuration information library as target test parameters, and respectively updates the NV data in the basic test network and the roaming area test network according to the target test parameters to form a basic target network and a roaming area target network;

[0026] A terminal test module, configured to open an account for the virtual SIM card used in the MIFI terminal device to be tested in the basic test network and configure the roaming protocol between the basic network and the roaming area test network, so that the MIFI terminal device is successfully registered on the base station of the basic target network;

[0027] The network configuration module is further configured to use the automatic test configuration platform to adjust the signal strength of the base stations in the basic test network and the roaming test network. If the MIFI terminal device can successfully register to the base station of the roaming target network, then the MIFI terminal device has the cross-network roaming ability of the roaming test network. If the MIFI terminal device cannot successfully register to the base station of the roaming target network, then the MIFI terminal device does not have the cross-network roaming ability of the roaming test network.

[0028] Preferably, the network configuration module is further configured to:

[0029] Connect the base stations in the basic test network and the roaming test network to an attenuator respectively, and connect the attenuator to the automatic test configuration platform and the MIFI terminal device to be tested;

[0030] Use the automatic test configuration platform to control the attenuator to weaken the signal of the base station in the basic test network and at the same time strengthen the signal of the base station in the roaming test network.

[0031] Preferably, the key network elements in the test network module include HSS / UDM network elements, EPC / 5GC network elements, base stations and SMF network elements;

[0032] The HSS is the Home Subscriber Server, and the UDM is the Unified Data Management. The HSS / UDM network element is used to store the subscription information of users;

[0033] The EPC is the Evolved Packet Core Network, and the 5GC is the 5G Core Network. The EPC / 5GC network element is used to manage user sessions, route data traffic, and execute QoS policies;

[0034] The base station is used for wireless communication with the MIFI terminal device;

[0035] The SMF is the Session Management Function, and the SMF network element is used to manage the PDU session of users.

[0036] The present invention also discloses a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, it is used to implement the above method for automatically testing the cross-network roaming ability of the MIFI terminal.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The method for automatically testing the cross-network roaming ability of a MIFI terminal provided by the embodiments of the present invention can build the network environment of the roaming location in the local environment, so that the test of the cross-network roaming function of the MIFI terminal does not require manual business trips to the roaming location, eliminating the limitation of the test area, reducing the labor and material costs during the test, saving the test cost, shortening the test time, and improving the test efficiency. In the deployed test environment, the automated test process is implemented through scripts without manual execution, further improving the test efficiency.

[0039] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the drawings to fully understand the purpose, features and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic flowchart of the method for automatically testing the cross-network roaming ability of a MIFI terminal in the present invention.

[0041] Figure 2 is another schematic flowchart of the method for automatically testing the cross-network roaming ability of a MIFI terminal in the present invention.

[0042] Figure 3 is a schematic structural diagram of the system for automatically testing the cross-network roaming ability of a MIFI terminal in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] In order to make the technical means, creative features, achieved purposes and effects of the invention easy to understand, the present invention will be further described below in conjunction with specific illustrations. However, the present invention is not limited to the following embodiments.

[0044] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention.

[0045] When testing the cross-network roaming ability of a MIFI terminal, it is necessary to arrange manual business trips to the roaming location for on-site network testing, which will bring relatively high labor costs to the enterprise. The present invention reduces the enterprise cost by deploying the network locally to maximize the simulation of the actual network situation.

[0046] The first embodiment of the present invention provides a method for automatically testing the cross-network roaming ability of a MIFI terminal, as Figure 1 shown. The method includes the following steps:

[0047] Step S1, deploy a basic test network and at least one roaming test network covering cross-network roaming areas. The basic test network and the roaming test network respectively include a number of key network elements compatible with 4G / 5G communication networks.

[0048] Specifically, taking the example of testing the roaming handover of a MIFI terminal from one test network to another, deploy a basic test network and a roaming test network in a local environment as two test communication networks. The roaming test network uses the same configuration as the market network in the international region where the roaming area is located, such as the configuration related to the terminal NV parameters, so as to make the test communication network as close as possible to the actual commercial network of the existing network and reduce the dependence on the existing network test.

[0049] It should be noted that multiple roaming test networks can be set up to test the cross-network roaming ability of the MIFI terminal multiple times. At this time, deploy one basic test network and multiple roaming test networks, and the network configurations of each test communication network are implemented independently.

[0050] NV is the abbreviation of "Non-Volatile", which means "non-volatile". In the fields of communication and computing, non-volatile memory refers to a storage medium that can still store data even after power-off. In contrast, volatile memory (such as RAM) loses all data after power-off. In mobile devices, NV parameters (Non-Volatile Parameters) refer to the non-volatile configuration data stored in the device modem. These parameters are used to control functions such as the behavior of the modem, network connection settings, and SIM card management. NV parameters are the configuration information loaded when the device starts up to ensure that the device can correctly access the network and provide the expected services.

[0051] NV parameters can be divided into multiple categories according to their functions and uses. The following are some common NV parameter classifications, such as SIM card-related parameters, network selection and connection parameters, radio frequency and antenna configurations, voice and data service parameters, debugging and diagnostic parameters, and other special parameters.

[0052] SIM card-related parameters include: IMSI (International Mobile Subscriber Identity), which is used to uniquely identify the user's SIM card. Ki (user key), which is the key used for encryption and authentication. OPc (operator-specific key), which is the operator key used to enhance security. PLMN list (Public Land Mobile Network list): lists the operator networks allowed to access. APN (Access Point Name), which is used to specify the way for the user to connect to the Internet or other services.

[0053] Network selection and connection parameters include: PLMN selection mode, which selects the operator network automatically or manually. Preferred network type, which specifies the network type that the device prefers to connect to (such as LTE, WCDMA, GSM, etc.). Roaming settings, which control how the device selects a network in the roaming state. EPS (Evolved Packet System) configuration, which are configuration parameters for 4G networks, such as EPS bearer policy, QoS (Quality of Service) settings, etc.

[0054] Radio frequency and antenna configuration include: Band support, which specifies the bands supported by the device (such as B1, B3, B7, etc.). Power level, which controls the power level of the signal transmitted by the device. Antenna configuration, which specifies the number and type of antennas used by the device (such as single antenna, MIMO, etc.). Neighbor cell configuration, which defines the handover strategy between different cells of the device.

[0055] Voice and data service parameters include: VoLTE (Voice over LTE) configuration, which enables or disables VoLTE service and configures related parameters. EPS Fallback, which is the configuration for the device to fallback to 4G network when the 5G network does not support voice calls. Data transfer rate, which controls the maximum uplink and downlink data transfer rates of the device.

[0056] Debugging and diagnostic parameters include: Log level, which controls the detail level of the logs generated by the device for easy debugging and problem troubleshooting. Error code, which records the error information encountered by the device during operation to help technicians analyze problems.

[0057] Other special parameters include: eSIM configuration, which are configuration parameters for embedded SIM cards. Dual SIM Dual Standby (DSDS) / Dual SIM Dual Active (DSDA) configuration, which controls the working mode of dual SIM devices. OTA update, which is used to update the device firmware or configuration files via over-the-air download.

[0058] The test communication network includes the key network elements of the core of 4G / 5G. The network is deployed in a closed environment shielded from other signals. In this embodiment, the test communication network is deployed in a shielded room. Similarly, the MIFI terminal device is also set in the shielded room to participate in the test, or only the MIFI terminal device can be set in the shielded room alone. An association is established between the key network elements and the terminal NV parameters to ensure the connection between the device and the test communication network.

[0059] The key network elements in the test communication network include the HSS / UDM network element, the EPC / 5GC network element, the base station, and the SMF network element. The HSS (Home Subscriber Server) is the home subscriber server, and the UDM (Unified Data Management) is the unified data management. The HSS / UDM network element is used to store the subscription information of users. When a MIFI terminal device attempts to access the network, the HSS / UDM will authenticate with the device's SIM card to ensure that the device is legal. The EPC (Evolved Packet Core) is the evolved packet core network, and the 5GC (5G Core) is the 5G core network. The EPC / 5GC network element is used to manage user sessions, route data traffic, execute QoS policies, etc. When a terminal device accesses the network, the EPC / 5GC will allocate an IP address for it, establish a data channel, and apply the corresponding quality of service (QoS) settings according to the device's NV parameters (such as APN, EPS bearer policy, etc.). The base station is used for wireless communication with the MIFI terminal device. The base station will adjust its transmit power, frequency configuration, etc. according to the device's NV parameters (such as frequency band support, power level, etc.) to ensure the best communication quality. The SMF (Session Management Function) is the session management function, and the SMF network element is used to manage user PDU sessions, such as Internet connection, voice call, etc. The SMF will provide appropriate services for users according to the device's NV parameters (such as APN, QoS settings, etc.) and ensure the stability and security of data transmission.

[0060] After setting up the test communication network, connect the test communication network to the automatic test configuration platform. The automatic test configuration platform integrates automatic test cases and scripts. Through script editing, parameters corresponding to the target market network can be configured on the automatic test configuration platform, and an account can be opened in the HSS / UDM of the test communication network to create corresponding SIM card data. The MIFI device under test uses the corresponding SIM card data and accesses the base station corresponding to the test communication network in the shielded room, and then the network roaming test can be carried out.

[0061] Step S2, collect the NV configuration information based on the network information of the target roaming area, and update the NV configuration information library based on the NV configuration information, so that the NV configuration information library includes the NV configuration information of multiple target roaming areas.

[0062] Specifically, the NV configuration information library collects NV-related parameters such as SIM cards, network selection, wireless parameters, voice and data services corresponding to multiple target markets, and classifies the data according to different network indexes (different PLMNs).

[0063] The NV configuration information in the NV configuration information library needs to be accurate and support real-time updates. If it is necessary to test the cross-network roaming function in a certain roaming area, it is necessary to first collect the accurate NV configuration information of that area.

[0064] The NV configuration information in the NV configuration information library at least includes the SIM card-related parameters, network selection-related parameters, radio frequency antenna-related parameters, and voice and data service-related parameters corresponding to the target roaming area; the NV configuration information is classified according to different network indexes in the NV configuration information library.

[0065] Step S3, construct an automatic test configuration platform. The automatic test configuration platform selects a set of NV configuration information corresponding to the cross-network roaming area from the NV configuration information library as the target test parameters, and respectively updates the NV data in the basic test network and the roaming area test network according to the target test parameters to form a basic target network and a roaming area target network.

[0066] Specifically, the automatic test configuration platform obtains a set of NV configuration information corresponding to the cross-network roaming area from the NV configuration information library through a script, and issues the configuration to the basic test network and the roaming area test network through the SNMP network management interface. After the network configuration takes effect, a basic test network and a roaming area test network will be formed, thus completing the construction of the network environment of the cross-network roaming area and providing a network environment consistent with the roaming area network for the cross-network roaming ability test of the MIFI terminal.

[0067] Specifically, to test the cross-network roaming function of the MIFI terminal device from the United States to Canada, it is necessary to obtain the NV configuration information of the US network and the NV configuration information of the Canadian network from the NV configuration information library. For example, the comparison of the NV configuration information of the US and Canadian networks is as follows in each table:

[0068] Table 1: Differences in main NV parameters between the United States and Canada

[0069]

[0070] Table 2: plmn configuration of major operators in the United States

[0071] US carriers MCC MNC Verizon Wireless 311 480 / 481 AT&T Mobility 310 410 / 150 T-Mobile US 310 260 / 026

[0072] Table 3: plmn configuration of major operators in Canada

[0073] Canadian carriers MCC MNC Rogers Wireless 302 720 / 370 Bell Mobility 302 610 / 651 Telus 302 220 / 221

[0074] Afterwards, the automatic test configuration console configures the basic test network (US network) and the visited test network (Canadian network) respectively by calling the SNMP network management interface. After the configuration is completed, both the US network and the Canadian network can support normal communication connections.

[0075] Step S4: Open an account for the virtual SIM card used in the MIFI terminal device to be tested in the basic test network and configure the roaming protocol between the basic network and the visited test network, so that the MIFI terminal device successfully registers on the base station of the basic target network.

[0076] Specifically, the virtual SIM card is used for network communication in the MIFI terminal device to be tested. This virtual SIM card needs to be pre-opened an account in the basic test network and the protocol configured, for example, configure the roaming protocol between the basic network and the visited test network, so that the virtual SIM card can communicate normally in both networks.

[0077] Since it is to test the cross-network roaming of the MIFI terminal device from the basic target network to the visited target network, it is necessary to first control the MIFI terminal device to successfully register on the base station of the basic target network.

[0078] Step S5: Use the automatic test configuration console to adjust the signal strength of the base stations in the basic test network and the visited test network. If the MIFI terminal device can successfully register on the base station of the visited target network, then the MIFI terminal device has the cross-network roaming ability for the visited test network. If the MIFI terminal device cannot successfully register on the base station of the visited target network, then the MIFI terminal device does not have the cross-network roaming ability for the visited test network.

[0079] Specifically, the base stations in the basic test network and the visited test network are respectively connected to the attenuator, and the attenuator is also connected to the automatic test configuration console and the MIFI terminal device to be tested. The automatic test configuration console can control the attenuator through a script, and the attenuator can control the signal strength of each base station. After the MIFI terminal device successfully registers on the base station of the basic target network, the automatic test configuration console controls the attenuator to weaken the signal of the base station in the basic test network, and at the same time makes the attenuator enhance the signal of the base station in the visited test network, so that the MIFI terminal device automatically switches to connect to the base station in the visited test network, thus completing the cross-network roaming ability test. If the MIFI terminal device cannot automatically switch to connect to the base station in the visited test network, it means that the MIFI terminal device does not have the cross-network roaming ability in the visited test network and needs to repair the terminal device subsequently.

[0080] In one example, such asFigure 2 For the automated test process shown, first, a 4G / 5G core network is set up as the basic test network and the visited network test network. Then, the NV configuration information is obtained and an NV information library is established. The NV data corresponding to the test network is updated according to the obtained NV information to establish the visited network environment. Then, according to the test script logic, the attenuator connected to the device under test is controlled to make the device under test automatically switch or roam into the test network. In the network roaming test, to enable the device to easily register to different base stations corresponding to different networks, the automatic test script can be used to control the attenuator to change the base station signal, allowing the device under test to register to the specified network base station to achieve automation. For example, the logic of the automatic test script is specifically as follows:

[0081] In the first step, it is confirmed through AT commands that the MIFI device is connected to the basic test network, the connection is normal, and data transmission is normal.

[0082] In the second step, if the result of the first step is normal, the roaming process is started. If the result of the first step is abnormal, an exception log is automatically output and the test ends.

[0083] The steps to start the roaming process are as follows:

[0084] First, control the attenuator to turn off the base station signal corresponding to the basic test network, and at the same time set the base station signal strength corresponding to the roaming test network to -40 dbm.

[0085] Then, check whether the MIFI device is connected to the roaming test network. If the connection is normal and data transmission is normal, record the log and end this round of testing, and enter the judgment on whether to conduct the next round of testing. If it is not normal, end the test and record the exception log.

[0086] The judgment condition for whether to conduct the next round of testing is: whether there is an unfinished test network combination. If there is, re-enter the test steps. If not, end the test.

[0087] It should be noted that the automatic test configuration platform writes a script program related to the test process through the script, enabling this test process to achieve automated testing. When other MIFI terminal devices need to be tested, only the other MIFI devices need to be initially configured and included in the shielding room for testing, and no manual intervention is required again during the test process. Similarly, when testing the cross-network roaming ability of MIFI terminal devices in other regions, only a set of NV configuration information needs to be re-selected from the NV configuration information library as the target test parameter, and each different test network is configured. After the configuration takes effect, the automated test process is executed. Through the editing of the test script, it is also possible to automatically enter the test process of the next batch of NV parameters after the configuration test of a batch of NV parameters is completed.

[0088] The second embodiment of the present invention provides a system for automatically testing the cross-network roaming ability of a MIFI terminal, as Figure 3 shown, which includes a test network module, a configuration information module, a network configuration module, and a terminal test module. An NV configuration information library is set in the configuration information module, and an automatic test configuration platform is set in the network configuration module. The test network module is connected to the automatic test configuration platform, the automatic test configuration platform is connected to the NV configuration information library, and the automatic test configuration platform is also connected to the MIFI terminal device to be tested.

[0089] The test network module is used to deploy a basic test network and at least one roaming test network involved in cross-network roaming. The basic test network and the roaming test network respectively include several key network elements compatible with 4G / 5G communication networks.

[0090] The configuration information module is used to collect NV configuration information based on the network information of the target roaming area, and update the NV configuration information library based on the NV configuration information, so that the NV configuration information library includes the NV configuration information of multiple target roaming areas.

[0091] The network configuration module is used to construct an automatic test configuration platform. The automatic test configuration platform selects a set of NV configuration information corresponding to the cross-network roaming area from the NV configuration information library as the target test parameters, and respectively updates the NV data in the basic test network and the roaming test network according to the target test parameters to form a basic target network and a roaming target network.

[0092] The terminal test module is used to open an account for the virtual SIM card used in the MIFI terminal device to be tested in the basic test network and configure the roaming protocol between the basic network and the roaming test network, so that the MIFI terminal device is successfully registered on the base station of the basic target network.

[0093] The network configuration module is also used to adjust the signal strength of the base stations in the basic test network and the roaming test network by using the automatic test configuration platform. If the MIFI terminal device can be successfully registered on the base station of the roaming target network, the MIFI terminal device has the cross-network roaming ability of the roaming test network. If the MIFI terminal device cannot be successfully registered on the base station of the roaming target network, the MIFI terminal device does not have the cross-network roaming ability of the roaming test network.

[0094] The network configuration module is further configured to connect the base stations in the basic test network and the visited test network to the attenuator respectively, and connect the attenuator to the automatic test configuration platform and the MIFI terminal device to be tested; control the attenuator by using the automatic test configuration platform, so that the attenuator weakens the base station signal of the basic test network, and at the same time the attenuator strengthens the base station signal in the visited test network.

[0095] Since the first embodiment corresponds to this embodiment, this embodiment can be implemented in cooperation with the first embodiment. The relevant technical details mentioned in the first embodiment are still valid in this embodiment, and the technical effects achievable in the first embodiment can also be achieved in this embodiment. To avoid repetition, they will not be elaborated here. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the first embodiment.

[0096] The third embodiment of the present invention provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, it is used to implement the method for automatically testing the cross-network roaming ability of the MIFI terminal as described in the first embodiment.

[0097] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A method for automatically testing the cross-network roaming capability of a MIFI terminal, characterized in that: The following steps are involved: Deployment involves a basic test network across network roaming locations and at least one roaming location test network, wherein the basic test network and the roaming location test network respectively include several key network elements compatible with 4G / 5G communication networks; Collecting NV configuration information based on network information of a target roaming area, and updating an NV configuration information library based on the NV configuration information, so that the NV configuration information library includes NV configuration information of multiple target roaming areas; Constructing an automatic test configuration platform, wherein the automatic test configuration platform selects a set of NV configuration information corresponding to the cross-network roaming location from the NV configuration information library as target test parameters, and updates the NV data in the basic test network and the roaming location test network respectively according to the target test parameters to form a basic target network and a roaming location target network; Open an account with the virtual SIM card used in the MIFI terminal device to be tested in the basic test network and configure a roaming agreement between the basic network and the roaming test network, so that the MIFI terminal device is successfully registered with the base station of the basic target network; The automatic test configuration station is used to adjust the signal strength of the base stations in the basic test network and the roaming test network. If the MIFI terminal device can successfully register with the base station of the roaming target network, the MIFI terminal device has the cross-network roaming capability of the roaming test network. If the MIFI terminal device cannot successfully register with the base station of the roaming target network, the MIFI terminal device does not have the cross-network roaming capability of the roaming test network.

2. The method for automatically testing the inter-network roaming capability of a MIFI terminal according to claim 1, characterized in that: The step of using the automatic test configuration station to adjust the signal strength of base stations in the basic test network and the roaming test network includes: The base stations in the basic test network and the roaming test network are respectively connected to attenuators, and the attenuators are also connected to an automatic test configuration station and a MIFI terminal device to be tested; The attenuator is controlled by an automatic test configuration station so that the attenuator weakens the base station signal of the basic test network and simultaneously strengthens the base station signal in the roaming test network.

3. The method for automatically testing the inter-network roaming capability of a MIFI terminal according to claim 1, characterized in that: The key network elements include HSS / UDM network elements, EPC / 5GC network elements, base stations and SMF network elements; The HSS is a home subscriber server, the UDM is a unified data management, and the HSS / UDM network element is used to store the user's subscription information; The EPC is an evolved packet core network, the 5GC is a 5G core network, and the EPC / 5GC network element is used to manage user sessions, route data traffic, and execute QoS policies; The base station is used to perform wireless communication with the MIFI terminal device; The SMF is a session management function, and the SMF network element is used to manage the user's PDU session.

4. The method for automatically testing the inter-network roaming capability of a MIFI terminal according to claim 1, characterized in that: The MIFI terminal device is arranged in the shielding room to participate in the test, and the shielding room is a closed environment shielded from other signals.

5. The method for automatically testing the inter-network roaming capability of a MIFI terminal according to claim 1, characterized in that: The NV configuration information in the NV configuration information library includes at least corresponding SIM card related parameters, network selection related parameters, RF antenna related parameters, and voice data service related parameters in the target roaming area; the NV configuration information is classified according to different network indexes in the NV configuration information library.

6. The method for automatically testing the inter-network roaming capability of a MIFI terminal according to claim 1, characterized in that: The updating of the NV data in the basic test network and the roaming test network respectively according to the target test parameters is implemented through the SNMP network management interface.

7. A system for automatically testing the cross-network roaming capability of a MIFI terminal, characterized in that: include: A test network module, used to deploy a basic test network involving cross-network roaming and at least one roaming test network, wherein the basic test network and the roaming test network respectively include several key network elements compatible with 4G / 5G communication networks; A configuration information module, configured to collect NV configuration information based on network information of a target roaming area, and update an NV configuration information library based on the NV configuration information, so that the NV configuration information library includes NV configuration information of multiple target roaming areas; A network configuration module, used to construct an automatic test configuration platform, wherein the automatic test configuration platform selects a set of NV configuration information corresponding to the cross-network roaming location from the NV configuration information library as a target test parameter, and updates the NV data in the basic test network and the roaming location test network respectively according to the target test parameters to form a basic target network and a roaming location target network; The terminal test module is used to open an account for the virtual SIM card used in the MIFI terminal device to be tested in the basic test network and configure the roaming agreement between the basic network and the roaming test network, so that the MIFI terminal device is successfully registered with the base station of the basic target network; The network configuration module is also used to use the automatic test configuration station to adjust the signal strength of the base stations in the basic test network and the roaming test network. If the MIFI terminal device can successfully register with the base station of the roaming target network, the MIFI terminal device has the cross-network roaming capability of the roaming test network. If the MIFI terminal device cannot successfully register with the base station of the roaming target network, the MIFI terminal device does not have the cross-network roaming capability of the roaming test network.

8. The system for automatically testing the inter-network roaming capability of a MIFI terminal according to claim 7, characterized in that: The network configuration module is also used for: The base stations in the basic test network and the roaming test network are respectively connected to attenuators, and the attenuators are also connected to an automatic test configuration station and a MIFI terminal device to be tested; The attenuator is controlled by an automatic test configuration station so that the attenuator weakens the base station signal of the basic test network and simultaneously strengthens the base station signal in the roaming test network.

9. The system for automatically testing the inter-network roaming capability of a MIFI terminal according to claim 7, characterized in that: The key network elements in the test network module include HSS / UDM network elements, EPC / 5GC network elements, base stations and SMF network elements; The HSS is a home subscriber server, the UDM is a unified data management, and the HSS / UDM network element is used to store the user's subscription information; The EPC is an evolved packet core network, the 5GC is a 5G core network, and the EPC / 5GC network element is used to manage user sessions, route data traffic, and execute QoS policies; The base station is used to perform wireless communication with the MIFI terminal device; The SMF is a session management function, and the SMF network element is used to manage the user's PDU session.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, is used to implement the method for automatically testing the cross-network roaming capability of a MIFI terminal according to any one of claims 1 to 6.

Images