Network switching method and device, computer equipment and storage medium

Abstract

The invention relates to the technical field of wireless communication, in particular to a network switching method and device, computer equipment and a storage medium. The method comprises the following steps: receiving a network switching request; wherein the network switching request is used for indicating the core network to switch the target terminal from fifth generation mobile communication technology 5G cellular network communication to wireless network communication; and sending a network switching rejection response to the target terminal and switching the target terminal from 5G cellular network communication to 4G cellular network communication under the condition that it is detected that the currently accessed communication base station of the target terminal has triggered a fourth generation mobile communication technology 4G cellular network switching process for the target terminal. According to the method and the device, the two switching processes are prevented from being carried out at the same time, so that the situation that the call of the target terminal is dropped due to the fact that the two switching processes are carried out at the same time is avoided, and the call quality of the target terminal is not influenced by network switching.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a network switching method, device, computer equipment and storage medium. Background Art

[0002] As a supplement to cellular networks, Vowifi (Voice over WiFi) networks can provide users with a better calling experience in areas with weak cellular coverage or no cellular signals.

[0003] However, the switching between the cellular network and the VoWiFi network is determined by the terminal based on the switching threshold, while the switching between vonr (Voice over New Radio, NR carries voice) and volte (Voice over LTE, LTE carries voice) is determined by base station scheduling. When the two occur at the same time, a process conflict will occur, resulting in call drops at the target terminal. Summary of the invention

[0004] Based on this, it is necessary to provide a network switching method, device, computer equipment and storage medium that can prevent call drops of a target terminal in response to the above technical problems.

[0005] In a first aspect, the present application provides a network switching method, which is applied to a core network, and the method includes:

[0006] Receiving a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from the fifth generation mobile communication technology 5G cellular network communication to the wireless network communication;

[0007] When it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0008] In one embodiment, switching the target terminal from 5G cellular network communication to 4G cellular network communication includes:

[0009] Perform signal quality detection on 4G cellular network signal strength;

[0010] When the quality detection result shows that the signal strength is qualified, the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0011] In one embodiment, when the quality detection result shows that the signal strength is qualified, switching the target terminal from 5G cellular network communication to 4G cellular network communication includes:

[0012] When the quality detection result shows that the signal strength is qualified, determining a target base station that provides 4G cellular network support for the target terminal according to the network interface N2 side switching command sent by the communication base station;

[0013] Control the target terminal to access the target base station to enable the target terminal to switch from 5G cellular network communication to 4G cellular network communication.

[0014] In one embodiment, the detecting that the communication base station currently accessed by the target terminal has triggered a fourth generation mobile communication technology 4G cellular network switching process for the target terminal includes:

[0015] Sending a voice dedicated bearer establishment request to the communication base station; wherein the voice dedicated bearer establishment request is used to instruct the communication base station to feedback establishment success response information to the core network when the 5G cellular network signal strength is higher than the first signal strength threshold, or to feedback establishment failure response information to the core network when the 5G cellular network signal strength is lower than the first signal strength threshold;

[0016] If the establishment failure response information fed back by the communication base station is received, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0017] In one embodiment, if the establishment failure response information fed back by the communication base station is received, determining that the communication base station has triggered the 4G cellular network switching process for the target terminal includes:

[0018] If the establishment failure response information fed back by the communication base station is received, and label data representing that the communication base station has triggered the 4G cellular network switching process is extracted from the establishment failure response information, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0019] In one of the embodiments, the network switching request is a request sent by the target terminal when the 5G cellular network signal strength in the environment is less than a second signal strength threshold and the wireless network communication is greater than a third signal strength threshold.

[0020] In a second aspect, the present application further provides a network switching device, configured in a core network, the device comprising:

[0021] A receiving module, configured to receive a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from 5G cellular network communication to wireless network communication;

[0022] A sending module is used to send a network switching rejection response to the target terminal and switch the target terminal from 5G cellular network communication to 4G cellular network communication when it detects that the communication base station currently accessed by the target terminal has triggered a 4G cellular network switching process for the target terminal.

[0023] In a third aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0024] Receiving a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from the fifth generation mobile communication technology 5G cellular network communication to the wireless network communication;

[0025] When it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0026] In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0027] Receiving a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from the fifth generation mobile communication technology 5G cellular network communication to the wireless network communication;

[0028] When it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0029] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0030] Receiving a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from the fifth generation mobile communication technology 5G cellular network communication to the wireless network communication;

[0031] When it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0032] The above-mentioned network switching method, device, computer equipment and storage medium receive a network switching request, and then determine whether the communication base station currently accessed by the target terminal has triggered the 4G cellular network switching process for the target terminal. If it has been triggered, then send a rejection network switching response to the target terminal, and switch the target terminal from 5G cellular network communication to 4G cellular network communication. According to the above content, in the process of switching 5G cellular network communication and 4G cellular network communication for the target terminal, the present application does not allow the switching process between 5G cellular network communication and wireless network communication, and the switching process between 5G cellular network communication and 4G cellular network communication to be carried out at the same time, but when receiving the network switching request, it is learned that the target terminal expects to switch from the fifth generation mobile communication technology 5G cellular network communication to wireless network communication, and then verify whether the communication base station triggers the 4G cellular network switching process for the target terminal. If it has been triggered, reject the network switching response to the target terminal to prevent the two switching processes from being carried out at the same time, thereby avoiding the situation where the two switching processes are carried out at the same time and cause the target terminal to drop the call, and ensure that the call quality of the target terminal is not affected by the network switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is an application environment diagram of a network switching method provided in an embodiment of the present application;

[0034] FIG2 is a schematic diagram of a flow chart of a first network switching method provided in an embodiment of the present application;

[0035] FIG3 is a schematic diagram of a flow chart of a second network switching method provided in an embodiment of the present application;

[0036] FIG4 is a schematic diagram of a flow chart of a third network switching method provided in an embodiment of the present application;

[0037] FIG5 is a schematic diagram of a flow chart of a fourth network switching method provided in an embodiment of the present application;

[0038] FIG6 is a structural block diagram of a network switching device provided in an embodiment of the present application;

[0039] FIG. 7 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] The network switching method provided in the embodiment of the present application can be applied in the application environment shown in Figure 1. Among them, the terminal 102 communicates with the core network 104 through the network. The data storage system can store the data that the server 104 needs to process. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers. Receive a network switching request, and then determine whether the communication base station currently accessed by the target terminal has triggered the 4G cellular network switching process for the target terminal. If it has been triggered, send a rejection network switching response to the target terminal, and switch the target terminal from 5G cellular network communication to 4G cellular network communication. Among them, the terminal 102 can be, but is not limited to, various personal computers, laptops, smart phones, tablets, Internet of Things devices and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. The core network 104 can be implemented with an independent server or a server cluster consisting of multiple servers.

[0042] In one embodiment, as shown in FIG. 2 , a network switching method is provided, which is described by taking the method applied to the core network 104 in FIG. 1 as an example, including the following steps:

[0043] S201, receiving a network switching request.

[0044] Among them, the network switching request is used to instruct the core network to switch the target terminal from the fifth-generation mobile communication technology 5G cellular network communication to the wireless network communication; wireless network communication refers to the network communication based on WiFi technology interaction.

[0045] It should be noted that the terminal can verify whether the 5G cellular network signal strength meets the network switching conditions. Then, when the 5G cellular network signal strength meets the network switching conditions, the ePDG network element sends a network switching request to the core network.

[0046] Specifically, the network switching condition may include a second signal strength threshold for the 5G cellular network signal strength. Furthermore, when the 5G cellular network signal strength is less than the second signal strength threshold, it is determined that the 5G cellular network signal strength meets the network switching condition.

[0047] In one embodiment of the present application, if the target terminal detects that the 5G cellular network signal strength is less than the second signal strength threshold, it initiates switching from the fifth-generation mobile communication technology 5G cellular network communication to the wireless network communication. Specifically, first find a valid ePDG through a DNS server or a locally configured ePDG address, complete the authentication and certification on the wireless network communication, and obtain the PGW information used by the target terminal when registering with the NR (during the switching process, the PGW is responsible for interacting with the MME (Mobility Management Entity) and the SGW (Serving Gateway), processing switching-related signaling, such as creating session requests, etc., to ensure the smooth progress of the switching). Then the ePDG sends a network switching request create session request message to the core network. The network switching request is used to request the establishment of a dedicated bearer for wireless network communications.

[0048] In one embodiment of the present application, the network switching request is a request sent by the target terminal when the 5G cellular network signal strength in the environment is less than the second signal strength threshold and the wireless network communication is greater than the third signal strength threshold.

[0049] S202, when it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0050] It should be noted that if it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, it means that the 4G cellular network switching process has been executed at this time. Therefore, in order to prevent the process of switching from 5G cellular network communication to wireless network communication from conflicting with the process of switching from 5G cellular network communication to 4G cellular network communication, a network switching rejection response is sent to the target terminal.

[0051] Among them, the rejection network switching response is used to instruct the target terminal to stop the process of switching from the fifth-generation mobile communication technology 5G cellular network communication to the wireless network communication.

[0052] Further explanation: the network switching rejection response sent to the target terminal carries a rejection reason value for the target terminal. The rejection reason value is used to inform the target terminal of the reason for rejecting the network switching, namely, the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0053] The above network switching method receives a network switching request, and then determines whether the communication base station currently accessed by the target terminal has triggered the 4G cellular network switching process for the target terminal. If it has been triggered, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication. According to the above content, in the process of switching 5G cellular network communication and 4G cellular network communication for the target terminal, the present application does not allow the switching process between 5G cellular network communication and wireless network communication, and the switching process between 5G cellular network communication and 4G cellular network communication to be carried out at the same time, but when receiving the network switching request, it is learned that the target terminal expects to switch from the fifth generation mobile communication technology 5G cellular network communication to wireless network communication, and then verifies whether the communication base station triggers the 4G cellular network switching process for the target terminal. If it has been triggered, the network switching response is rejected to the target terminal to prevent the two switching processes from being carried out at the same time, thereby avoiding the situation where the two switching processes are carried out at the same time and the call of the target terminal is dropped, and the call quality of the target terminal is ensured not to be affected by the network switching.

[0054] In one embodiment, as shown in FIG. 3 , when it is necessary to switch the target terminal from 5G cellular network communication to 4G cellular network communication, the following contents may be included:

[0055] S301, performing signal quality detection on 4G cellular network signal strength.

[0056] It should be noted that in order to ensure the network communication quality of the subsequent target terminal switching from 5G cellular network communication to 4G cellular network communication, it is necessary to perform signal quality detection on the 4G cellular network signal strength.

[0057] Specifically, when performing signal quality detection on the 4G cellular network signal strength, a signal strength threshold for the 4G cellular network signal strength can be set in advance, and then, when the 4G cellular network signal strength is greater than the signal strength threshold, the quality detection result is determined to be that the signal strength is qualified; when the 4G cellular network signal strength is less than the signal strength threshold, the quality detection result is determined to be that the signal strength is unqualified.

[0058] It is further explained that when performing signal quality detection on the 4G cellular network signal strength, a signal distortion test can also be performed on the 4G cellular network signal strength, wherein the signal distortion test is used to evaluate the degree of signal distortion occurring during transmission, including linear distortion and nonlinear distortion, etc. Then, the signal quality detection result of the 4G cellular network signal strength is characterized according to the signal distortion test result.

[0059] S302: When the quality detection result shows that the signal strength is qualified, the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0060] It should be noted that when it is necessary to switch the target terminal from 5G cellular network communication to 4G cellular network communication, the following contents may be included: when the quality detection result shows that the signal strength is qualified, determine the target base station that provides 4G cellular network support for the target terminal according to the network interface N2 side switching command sent by the communication base station; control the target terminal to access the target base station to realize the switching of the target terminal from 5G cellular network communication to 4G cellular network communication.

[0061] The N2 side switching command is N2 REL COMMAND.

[0062] In one embodiment of the present application, when the quality detection result shows that the signal strength is qualified, the 5G cellular network communication and the 4G cellular network communication perform switching negotiation, and the communication base station sends N2 REL COMMAND (redirection of 5G cellular network communication to 4G cellular network communication) to the core network. The core network receives the N2 REL COMMAND from the base station. This command instructs the core network to prepare for switching on the N2 side. The core network begins to prepare necessary resources such as confirming the information of the target base station, and sends a cellular network communication switching notification to the target base station, requesting the target base station to establish a voice dedicated bearer for the user. The target terminal receives the network switching command, and the switching network target is EUTRA. The terminal performs context modification to enable the target terminal to switch from 5G cellular network communication to 4G cellular network communication, and uses volte for voice communication to prevent dropped calls.

[0063] The above-mentioned network switching method performs a signal quality test on the 4G cellular network signal strength to verify whether the 4G cellular network signal strength meets the requirements for switching from 5G cellular network communication to 4G cellular network communication. Furthermore, when the quality test result shows that the signal strength is qualified, the target terminal is switched from 5G cellular network communication to 4G cellular network communication to prevent the two switching processes from being carried out at the same time, thereby avoiding the situation where the target terminal's call is dropped due to the two switching processes being carried out at the same time, and ensuring that the call quality of the target terminal is not affected by the network switching.

[0064] In one embodiment, as shown in FIG. 4 , when it is detected that the communication base station currently accessed by the target terminal has triggered a fourth generation mobile communication technology 4G cellular network switching process for the target terminal, the following contents may be included:

[0065] S401, sending a voice dedicated bearer establishment request to a communication base station.

[0066] Among them, the voice dedicated bearer establishment request is used to instruct the communication base station to feedback establishment success response information to the core network when the 5G cellular network signal strength is higher than the first signal strength threshold, or to feedback establishment failure response information to the core network when the 5G cellular network signal strength is lower than the first signal strength threshold.

[0067] The value range of the first signal strength threshold may be set or adjusted according to actual conditions and historical experience of network operation and maintenance personnel, and the value range of the first signal strength threshold is not limited herein.

[0068] S402: If establishment failure response information fed back by the communication base station is received, it is determined that the communication base station has triggered a 4G cellular network switching process for the target terminal.

[0069] It should be noted that the establishment failure response information can be the reason value 36 (ims_voice_eps_fallback_or_rat_fallback_triggered).

[0070] In one embodiment of the present application, if a setup failure response message is received from a communication base station, and tag data representing that the communication base station has triggered a 4G cellular network switching process is extracted from the setup failure response message, it is determined that the communication base station has triggered a 4G cellular network switching process for the target terminal.

[0071] Furthermore, the establishment failure response information also carries the reason for the establishment failure, which is that the 5G cellular network signal strength is lower than the first signal strength threshold.

[0072] The above-mentioned network switching method, by sending a voice dedicated bearer establishment request to the communication base station, can determine that the communication base station has triggered the 4G cellular network switching process for the target terminal when receiving the establishment failure response information fed back by the communication base station, thereby avoiding the situation where the target terminal's call is dropped due to the two switching processes being carried out at the same time, and ensuring that the call quality of the target terminal is not affected by the network switching.

[0073] In one embodiment, as shown in FIG. 5 , when it is necessary to switch the target terminal from 5G cellular network communication to 4G cellular network communication, the following contents may be included:

[0074] S501: Receive a network switching request.

[0075] S502, sending a voice dedicated bearer establishment request to a communication base station.

[0076] S503, if the establishment failure response information fed back by the communication base station is received, and the tag data representing that the communication base station has triggered the 4G cellular network switching process is extracted from the establishment failure response information, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0077] S504, sending a network switching rejection response to the target terminal, and performing a signal quality detection on the 4G cellular network signal strength.

[0078] S505, when the quality detection result shows that the signal strength is qualified, according to the network interface N2 side switching command sent by the communication base station, determine the target base station that provides 4G cellular network support for the target terminal.

[0079] S506, controlling the target terminal to access the target base station to enable the target terminal to switch from 5G cellular network communication to 4G cellular network communication.

[0080] The above network switching method receives a network switching request, and then determines whether the communication base station currently accessed by the target terminal has triggered the 4G cellular network switching process for the target terminal. If it has been triggered, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication. According to the above content, in the process of switching 5G cellular network communication and 4G cellular network communication for the target terminal, the present application does not allow the switching process between 5G cellular network communication and wireless network communication, and the switching process between 5G cellular network communication and 4G cellular network communication to be carried out at the same time, but when receiving the network switching request, it is learned that the target terminal expects to switch from the fifth generation mobile communication technology 5G cellular network communication to wireless network communication, and then verifies whether the communication base station triggers the 4G cellular network switching process for the target terminal. If it has been triggered, the network switching response is rejected to the target terminal to prevent the two switching processes from being carried out at the same time, thereby avoiding the situation where the two switching processes are carried out at the same time and the call of the target terminal is dropped, and the call quality of the target terminal is ensured not to be affected by the network switching.

[0081] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0082] Based on the same inventive concept, the embodiment of the present application also provides a network switching device for implementing the network switching method involved above. The implementation solution provided by the device to solve the problem is similar to the implementation solution recorded in the above method, so the specific limitations in one or more network switching device embodiments provided below can refer to the limitations on the network switching method above, and will not be repeated here.

[0083] In one embodiment, as shown in FIG6 , a network switching device is provided, including: a receiving module 10 and a sending module 20, wherein:

[0084] The receiving module 10 is used to receive a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from 5G cellular network communication to wireless network communication.

[0085] The sending module 20 is used to send a network switching rejection response to the target terminal and switch the target terminal from 5G cellular network communication to 4G cellular network communication when it detects that the communication base station currently accessed by the target terminal has triggered the 4G cellular network switching process for the target terminal.

[0086] In one embodiment, a signal quality detection is performed on a 4G cellular network signal strength;

[0087] When the quality detection result shows that the signal strength is qualified, the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0088] In one embodiment, when the quality detection result shows that the signal strength is qualified, a target base station providing 4G cellular network support for the target terminal is determined according to a network interface N2 side switching command sent by the communication base station;

[0089] Control the target terminal to access the target base station to enable the target terminal to switch from 5G cellular network communication to 4G cellular network communication.

[0090] In one embodiment, a voice dedicated bearer establishment request is sent to a communication base station; wherein the voice dedicated bearer establishment request is used to instruct the communication base station to feed back establishment success response information to the core network when the 5G cellular network signal strength is higher than the first signal strength threshold, or to feed back establishment failure response information to the core network when the 5G cellular network signal strength is lower than the first signal strength threshold;

[0091] If establishment failure response information fed back by the communication base station is received, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0092] In one embodiment, if a setup failure response message is received from a communication base station, and tag data indicating that the communication base station has triggered a 4G cellular network switching process is extracted from the setup failure response message, it is determined that the communication base station has triggered a 4G cellular network switching process for the target terminal.

[0093] In one embodiment, the network switching request is a request sent by the target terminal when the 5G cellular network signal strength in the environment is less than the second signal strength threshold and the wireless network communication is greater than the third signal strength threshold.

[0094] The above-mentioned network switching device receives a network switching request, and then determines whether the communication base station currently accessed by the target terminal has triggered the 4G cellular network switching process for the target terminal. If it has been triggered, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication. According to the above content, in the process of switching 5G cellular network communication and 4G cellular network communication for the target terminal, the present application does not allow the switching process between 5G cellular network communication and wireless network communication, and the switching process between 5G cellular network communication and 4G cellular network communication to be carried out at the same time, but when receiving the network switching request, it is learned that the target terminal expects to switch from the fifth generation mobile communication technology 5G cellular network communication to wireless network communication, and then verifies whether the communication base station triggers the 4G cellular network switching process for the target terminal. If it has been triggered, the network switching response is rejected to the target terminal to prevent the two switching processes from being carried out at the same time, thereby avoiding the situation where the two switching processes are carried out at the same time and the call of the target terminal is dropped, and the call quality of the target terminal is ensured not to be affected by the network switching.

[0095] Each module in the above network switching device can be implemented in whole or in part by software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0096] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be shown in FIG7. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. The processor, the memory, and the input / output interface are connected via a system bus, and the communication interface, the display unit, and the input device are connected to the system bus via the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner may be implemented through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a network switching method is implemented. The display unit of the computer device is used to form a visually visible picture, which may be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0097] Those skilled in the art will understand that the structure shown in FIG. 7 is merely a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0098] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0099] Receiving a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from the fifth generation mobile communication technology 5G cellular network communication to the wireless network communication;

[0100] When it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0101] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0102] Perform signal quality detection on 4G cellular network signal strength;

[0103] When the quality detection result shows that the signal strength is qualified, the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0104] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0105] When the quality detection result shows that the signal strength is qualified, the target base station providing 4G cellular network support for the target terminal is determined according to the network interface N2 side switching command sent by the communication base station;

[0106] Control the target terminal to access the target base station to enable the target terminal to switch from 5G cellular network communication to 4G cellular network communication.

[0107] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0108] Send a voice dedicated bearer establishment request to the communication base station; wherein the voice dedicated bearer establishment request is used to instruct the communication base station to feedback establishment success response information to the core network when the 5G cellular network signal strength is higher than the first signal strength threshold, or to feedback establishment failure response information to the core network when the 5G cellular network signal strength is lower than the first signal strength threshold;

[0109] If establishment failure response information fed back by the communication base station is received, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0110] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0111] If establishment failure response information is received from the communication base station, and tag data indicating that the communication base station has triggered the 4G cellular network switching process is extracted from the establishment failure response information, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0112] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0113] The network switching request is a request sent by the target terminal when the 5G cellular network signal strength in the environment is less than the second signal strength threshold and the wireless network communication is greater than the third signal strength threshold.

[0114] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0115] Receiving a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from the fifth generation mobile communication technology 5G cellular network communication to the wireless network communication;

[0116] When it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0117] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0118] Perform signal quality detection on 4G cellular network signal strength;

[0119] When the quality detection result shows that the signal strength is qualified, the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0120] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0121] When the quality detection result shows that the signal strength is qualified, the target base station providing 4G cellular network support for the target terminal is determined according to the network interface N2 side switching command sent by the communication base station;

[0122] Control the target terminal to access the target base station to enable the target terminal to switch from 5G cellular network communication to 4G cellular network communication.

[0123] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0124] Send a voice dedicated bearer establishment request to the communication base station; wherein the voice dedicated bearer establishment request is used to instruct the communication base station to feedback establishment success response information to the core network when the 5G cellular network signal strength is higher than the first signal strength threshold, or to feedback establishment failure response information to the core network when the 5G cellular network signal strength is lower than the first signal strength threshold;

[0125] If establishment failure response information fed back by the communication base station is received, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0126] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0127] If establishment failure response information is received from the communication base station, and tag data indicating that the communication base station has triggered the 4G cellular network switching process is extracted from the establishment failure response information, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0128] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0129] The network switching request is a request sent by the target terminal when the 5G cellular network signal strength in the environment is less than the second signal strength threshold and the wireless network communication is greater than the third signal strength threshold.

[0130] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0131] Receiving a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from the fifth generation mobile communication technology 5G cellular network communication to the wireless network communication;

[0132] When it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0133] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0134] Perform signal quality detection on 4G cellular network signal strength;

[0135] When the quality detection result shows that the signal strength is qualified, the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

[0136] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0137] When the quality detection result shows that the signal strength is qualified, the target base station providing 4G cellular network support for the target terminal is determined according to the network interface N2 side switching command sent by the communication base station;

[0138] Control the target terminal to access the target base station to enable the target terminal to switch from 5G cellular network communication to 4G cellular network communication.

[0139] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0140] Send a voice dedicated bearer establishment request to the communication base station; wherein the voice dedicated bearer establishment request is used to instruct the communication base station to feedback establishment success response information to the core network when the 5G cellular network signal strength is higher than the first signal strength threshold, or to feedback establishment failure response information to the core network when the 5G cellular network signal strength is lower than the first signal strength threshold;

[0141] If establishment failure response information fed back by the communication base station is received, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0142] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0143] If establishment failure response information is received from the communication base station, and tag data indicating that the communication base station has triggered the 4G cellular network switching process is extracted from the establishment failure response information, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

[0144] In one embodiment, when the computer program is executed by a processor, the following steps are also implemented:

[0145] The network switching request is a request sent by the target terminal when the 5G cellular network signal strength in the environment is less than the second signal strength threshold and the wireless network communication is greater than the third signal strength threshold.

[0146] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

[0147] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0148] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A network switching method, characterized in that: Applied to a core network, the method comprises: Receiving a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from the fifth generation mobile communication technology 5G cellular network communication to the wireless network communication; When it is detected that the communication base station currently accessed by the target terminal has triggered the fourth generation mobile communication technology 4G cellular network switching process for the target terminal, a network switching rejection response is sent to the target terminal, and the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

2. The method according to claim 1, characterized in that: The switching of the target terminal from 5G cellular network communication to 4G cellular network communication includes: Perform signal quality detection on 4G cellular network signal strength; When the quality detection result shows that the signal strength is qualified, the target terminal is switched from 5G cellular network communication to 4G cellular network communication.

3. The method according to claim 2, characterized in that When the quality detection result shows that the signal strength is qualified, switching the target terminal from 5G cellular network communication to 4G cellular network communication includes: When the quality detection result shows that the signal strength is qualified, determining a target base station that provides 4G cellular network support for the target terminal according to the network interface N2 side switching command sent by the communication base station; Control the target terminal to access the target base station to enable the target terminal to switch from 5G cellular network communication to 4G cellular network communication.

4. The method according to claim 1, characterized in that The detecting that the communication base station currently accessed by the target terminal has triggered a fourth generation mobile communication technology 4G cellular network switching process for the target terminal includes: Sending a voice dedicated bearer establishment request to the communication base station; wherein the voice dedicated bearer establishment request is used to instruct the communication base station to feedback establishment success response information to the core network when the 5G cellular network signal strength is higher than the first signal strength threshold, or to feedback establishment failure response information to the core network when the 5G cellular network signal strength is lower than the first signal strength threshold; If the establishment failure response information fed back by the communication base station is received, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

5. The method according to claim 4, characterized in that If the establishment failure response information fed back by the communication base station is received, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal, including: If the establishment failure response information fed back by the communication base station is received, and label data representing that the communication base station has triggered the 4G cellular network switching process is extracted from the establishment failure response information, it is determined that the communication base station has triggered the 4G cellular network switching process for the target terminal.

6. The method according to claim 1, characterized in that The network switching request is a request sent by the target terminal when the 5G cellular network signal strength in the environment is less than the second signal strength threshold and the wireless network communication is greater than the third signal strength threshold.

7. A network switching device, characterized in that: Configured in a core network, the device includes: A receiving module, configured to receive a network switching request; wherein the network switching request is used to instruct the core network to switch the target terminal from 5G cellular network communication to wireless network communication; A sending module is used to send a network switching rejection response to the target terminal and switch the target terminal from 5G cellular network communication to 4G cellular network communication when it detects that the communication base station currently accessed by the target terminal has triggered a 4G cellular network switching process for the target terminal.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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