Service guarantee method and device, electronic equipment and storage medium

Abstract

The invention relates to a service guarantee method and device, electronic equipment and a storage medium, and the method comprises the steps that a cloud control platform obtains current network state data and a current connection mode of terminal equipment; wherein the vehicle to which the terminal equipment belongs is located in a switching area; the current connection mode comprises a current user plane function UPF network element and a current computing node; determining a switching strategy corresponding to the terminal equipment according to the current network state data and the current connection mode; wherein the switching strategy indicates that the terminal equipment is switched to the target UPF network element and / or the target computing node; sending the switching strategy to the terminal equipment; wherein the switching strategy is determined by combining the current network state data and the current connection mode of the terminal equipment, so that the determined switching strategy can be suitable for the current network environment of the terminal equipment, switching success is ensured, the switching efficiency is improved, and the service continuity of the terminal equipment is ensured.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of mobile communication, and particularly relates to a service guarantee method and device, electronic equipment and storage medium. BACKGROUND

[0002] At present, in a vehicle-road cloud system, a cloud control platform determines a vehicle position according to position area information reported by a terminal device on the vehicle, and then determines a switching strategy to perform connection switching processing of a user plane function (UPF) and a computing node.

[0003] In the above scheme, only the position of the vehicle is considered when determining the switching strategy, the dimension is single, and the mapping relationship between the vehicle position and the switching strategy is fixed, which leads to the switching strategy determined to be possibly not applicable to the current network environment of the terminal device, and easily causes switching failure, thereby reducing switching efficiency and making it difficult to guarantee service continuity of the terminal device. SUMMARY

[0004] The present disclosure provides a service guarantee method and device, electronic equipment and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a service guarantee method is provided, applied to a cloud control platform, and the method comprises: acquiring current network state data and a current connection mode of a terminal device; wherein a vehicle to which the terminal device belongs is in a switching area; the current connection mode comprises a current user plane function (UPF) network element and a current computing node; determining a switching strategy corresponding to the terminal device according to the current network state data and the current connection mode; wherein the switching strategy indicates that the terminal device switches to a target UPF network element and / or a target computing node; and sending the switching strategy to the terminal device.

[0006] In an embodiment of the present disclosure, the current network state data comprises at least one of the following parameters: reference signal received power (RSRP), signal-to-noise ratio, base station load rate, link delay, switching delay, rainfall, road curvature, and vehicle density.

[0007] In an embodiment of the present disclosure, the determining of the switching strategy corresponding to the terminal device according to the current network state data and the current connection mode comprises: determining a target connection mode of the terminal device according to the current network state data and a decision model; and determining the switching strategy corresponding to the terminal device according to the current connection mode and the target connection mode.

[0008] In an embodiment of the present disclosure, the determining the target connection mode of the terminal device according to the current network state data and the decision model comprises: determining input state space data of the decision model according to the current network state data; the input state space data comprises the current network state data and intermediate data determined based on the current network state data; inputting the input state space data into the decision model to obtain the target connection mode output by the decision model.

[0009] In an embodiment of the present disclosure, after the switching strategy is sent to the terminal device, the method further comprises: obtaining current driving data and current environment data of the terminal device; determining a switching time point according to the current driving data and the current environment data; instructing the terminal device to perform switching processing according to the switching strategy in a case where the switching time point is reached.

[0010] In an embodiment of the present disclosure, the determining the switching time point according to the current driving data and the current environment data of the terminal device comprises: determining a switching decision result according to the current driving data and the current environment data; the switching decision result indicates at least one of the following: immediate switching, delayed switching and maintaining connection; determining whether the current time point is the switching time point according to the switching decision result; in a case where the current time point is not the switching time point, predicting driving data and environment data at each future time point according to the current driving data and the current environment data to determine whether the each future time point is the switching time point until the switching time point is determined.

[0011] According to a second aspect of the embodiments of the present disclosure, a service guarantee method is also provided, applied to a terminal device, the method comprising: in a case where a vehicle to which the terminal device belongs is in a switching area, sending a tracking area code (TAC) to a current user plane function (UPF) network element to instruct the current UPF network element to collect current network state data of the terminal device and report the cloud control platform; sending a cell identifier to a current computing node to instruct the current computing node to collect the current network state data of the terminal device and report the cloud control platform; receiving a switching strategy issued by the cloud control platform; wherein the switching strategy is determined according to the current network state data and a current connection mode of the terminal device; the current connection mode comprises the current UPF network element and the current computing node; performing switching processing according to the switching strategy.

[0012] According to a third aspect of the embodiments of the present disclosure, a service guarantee apparatus is also provided, which is applied to a cloud control platform, and includes: an acquisition module, configured to acquire current network state data of a terminal device and a current connection mode; wherein a vehicle to which the terminal device belongs is in a switching area; the current connection mode includes a current user plane function (UPF) network element and a current computing node; a determination module, configured to determine a switching strategy corresponding to the terminal device according to the current network state data and the current connection mode; the switching strategy indicates that the terminal device switches to a target UPF network element and / or a target computing node; and a sending module, configured to send the switching strategy to the terminal device.

[0013] According to a fourth aspect of the embodiments of the present disclosure, a service guarantee apparatus is also provided, which is applied to a terminal device, and includes: a first sending module, configured to send a tracking area code (TAC) to a current user plane function (UPF) network element, to instruct the current UPF network element to collect current network state data of the terminal device and report the current network state data to a cloud control platform, in a case where a vehicle to which the terminal device belongs is in a switching area; a second sending module, configured to send a cell identity to a current computing node, to instruct the current computing node to collect current network state data of the terminal device and report the current network state data to the cloud control platform; a receiving module, configured to receive a switching strategy issued by the cloud control platform; wherein the switching strategy is determined according to the current network state data and a current connection mode of the terminal device; the current connection mode includes the current UPF network element and the current computing node; and a switching processing module, configured to perform switching processing according to the switching strategy.

[0014] According to a fifth aspect of the embodiments of the present disclosure, a vehicle-road cloud system is also provided, which includes: a cloud control platform and a terminal device; the cloud control platform is in communication connection with the terminal device; the cloud control platform is configured to perform the service guarantee method according to the first aspect; and the terminal device is configured to perform the service guarantee method according to the second aspect.

[0015] According to a sixth aspect of the embodiments of the present disclosure, an electronic device is also provided, which includes: a processor; and a memory for storing instructions executable by the processor; wherein the processor is configured to implement the steps of the service guarantee method.

[0016] According to a seventh aspect of the embodiments of the present disclosure, a non-transitory computer readable storage medium is also provided, when instructions in the storage medium are executed by a processor, the processor can perform the service guarantee method.

[0017] The technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects: The cloud control platform obtains current network state data and a current connection mode of the terminal device, wherein the vehicle to which the terminal device belongs is in a switching area, and the current connection mode includes a current user plane function (UPF) network element and a current computing node. According to the current network state data and the current connection mode, a switching strategy corresponding to the terminal device is determined, wherein the switching strategy indicates that the terminal device switches to a target UPF network element and / or a target computing node. The switching strategy is sent to the terminal device. The switching strategy is determined in combination with the current network state data and the current connection mode of the terminal device, so that the determined switching strategy can be applied to the current network environment of the terminal device, ensuring successful switching, thereby improving switching efficiency and ensuring service continuity of the terminal device.

[0018] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings incorporated in the specification hereof and forming a part thereof illustrate embodiments consistent with the present disclosure and together with the description are used to explain the principles of the present disclosure, and are not intended to limit the present disclosure.

[0020] Figure 1 Flow chart of a service guarantee method according to an embodiment of the present disclosure; Figure 2 System schematic diagram of a vehicle-road-cloud system; Figure 3 Flow chart of a service guarantee method according to an embodiment of the present disclosure; Figure 4 Flow chart of a service guarantee method according to an embodiment of the present disclosure; Figure 5 Architecture schematic diagram of a vehicle-road-cloud system; Figure 6 Structure schematic diagram of a service guarantee device according to an embodiment of the present disclosure; Figure 7 Structure schematic diagram of a service guarantee device according to an embodiment of the present disclosure; Figure 8 Structure block diagram of an electronic device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0021] In order for those skilled in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the accompanying drawings.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein. The implementation described in the following exemplary embodiments does not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0023] Currently, in a vehicle-road-cloud system, a cloud control platform determines a vehicle position according to position area information reported by a terminal device on the vehicle, and then determines a switching strategy to perform connection switching processing of a user plane function (UPF) and a computing node.

[0024] In the above scheme, only the position of the vehicle is considered when determining the switching strategy, the dimension is single, and the mapping relationship between the vehicle position and the switching strategy is fixed, which leads to the switching strategy determined may not be suitable for the current network environment of the terminal device, which is easy to cause switching failure, thereby reducing the switching efficiency and making it difficult to guarantee the service continuity of the terminal device.

[0025] Figure 1 A flowchart of a service guarantee method of an embodiment of the present disclosure. It should be noted that the service guarantee method of the present embodiment can be applied to a service guarantee device, which can be configured in an electronic device to enable the electronic device to perform a service guarantee function.

[0026] The electronic device can be any device with computing capability, such as a terminal device, a server, a platform, etc. The platform can be, for example, a cloud control platform in a vehicle-road-cloud system, etc. The following embodiments are described with the cloud control platform as an example.

[0027] As shown in the method, the following steps are included: Figure 1 Step 101, obtaining current network state data of a terminal device and a current connection mode; wherein a vehicle to which the terminal device belongs is in a switching area; the current connection mode includes a current user plane function (UPF) network element and a current computing node.

[0028] In the embodiments of the present disclosure, the terminal device and the cloud control platform can be located in a vehicle-road-cloud system. The vehicle-road-cloud system can include a vehicle, a roadside sensing device, a base station, a UPF network element, a computing node, a cloud control platform, etc. The roadside sensing device can be, for example, a camera, a millimeter wave radar, a laser radar, a roadside communication device, etc. ​

[0029] The UPF network element is a core network element responsible for user plane data packet routing and forwarding in the core network, and is used to implement communication between the core network and the data network. The computing node can include an edge computing node and a regional computing node, and is used for data processing and decision processing. Data between the computing node and the terminal device needs to be transmitted through a channel between the UPF network element and the terminal device.

[0030] The system schematic diagram of the vehicle-road cloud system can be as shown in Figure 2 In Figure 2 , a networked vehicle (i.e., a vehicle provided with a terminal device), a perception device (i.e., a roadside perception device), a signal lamp device, a base station, a computing node, a UPF device (i.e., a UPF network element), and a cloud control platform device (i.e., a cloud control platform) are provided. In Figure 2 , the UPF device includes: UPF-A, UPF-B, and UPF-C. The computing node includes: edge computing node EC1, edge computing node EC2, and regional computing node RC. The UPF-C is directly connected to the RC; the UPF-A is directly connected to the EC1; and the UPF-B is directly connected to the EC2.

[0031] The coverage area of the UPF-A overlaps with the coverage area of the UPF-B; and the coverage area of the UPF-C includes the coverage area of the UPF-A and the coverage area of the UPF-B. The perception device and the signal lamp device are provided in the coverage area of the UPF-A. The overlapping area between the above-mentioned coverage areas can be a handover area of the terminal device.

[0032] In the embodiments of the present disclosure, the process of step 101 performed by the cloud control platform can be, for example, obtaining a current connection mode; receiving data reported by at least one data source; the data sources include: a terminal device, a base station to which the terminal device belongs, a third-party platform, and a roadside perception device around the terminal device; and determining current network state data of the terminal device according to the data reported by the at least one data source.

[0033] In the embodiments of the present disclosure, the current network state data can include at least one of the following parameters: reference signal received power (RSRP), signal-to-noise ratio, base station load rate, link delay, handover delay, rainfall, road curvature, and vehicle density.

[0034] The data reported by the terminal device includes, for example, a reference signal receiving power (RSRP) and a signal-to-noise ratio. The data reported by the base station to which the terminal device belongs includes, for example, a base station load rate, a link delay, and a handover delay. The data reported by the third-party platform includes, for example, rainfall. The data reported by the road-side sensing device includes, for example, a road curvature and a vehicle density.

[0035] In the embodiments of the present disclosure, in the process in which the cloud control platform acquires the current network state data and the current connection mode, the interaction process between the devices and / or nodes in the vehicle-road cloud system can include the following steps. (1) When the vehicle to which the terminal device belongs is in a handover area, the terminal device sends a tracking area code (TAC) to the base station and sends a cell ID to the current computing node. (2) When the base station receives the TAC, the base station acquires the RSRP and the signal-to-noise ratio reported by the terminal device, and reports the above-mentioned data reported by the terminal device, the base station load rate, the link delay, and the handover delay to the current UPF. (3) The current UPF reports the received data to the cloud control platform. (4) When the current computing node receives the cell ID, the current computing node acquires the data of the road-side sensing device and the signal light device, and acquires the data reported by the third-party platform, and reports the above-mentioned data to the cloud control platform. (5) The cloud control platform interacts with the current UPF and the current computing node to acquire the current connection mode of the terminal device.

[0036] Step 102, according to the current network state data and the current connection mode, a handover strategy corresponding to the terminal device is determined; wherein the handover strategy indicates that the terminal device is switched to a target UPF network element and / or a target computing node.

[0037] In the embodiments of the present disclosure, in the process in which the cloud control platform acquires the current network state data and the current connection mode, the interaction process between the devices and / or nodes in the vehicle-road cloud system can include the following steps. (1) When the vehicle to which the terminal device belongs is in a handover area, the terminal device sends a tracking area code (TAC) to the base station and sends a cell ID to the current computing node. (2) When the base station receives the TAC, the base station acquires the RSRP and the signal-to-noise ratio reported by the terminal device, and reports the above-mentioned data reported by the terminal device, the base station load rate, the link delay, and the handover delay to the current UPF. (3) The current UPF reports the received data to the cloud control platform. (4) When the current computing node receives the cell ID, the current computing node acquires the data of the road-side sensing device and the signal light device, and acquires the data reported by the third-party platform, and reports the above-mentioned data to the cloud control platform. (5) The cloud control platform interacts with the current UPF and the current computing node to acquire the current connection mode of the terminal device. Figure 2 The current connection mode of the terminal device can include at least one combination of the following: UPF-B+EC2; UPF-A+EC1; UPF-C+RC. In the above-mentioned various current connection modes, the sensing device and / or the signal light device can be configured in the coverage area in the vehicle-road cloud system, or the sensing device and the signal light device can not be configured. Correspondingly, the current network state data can include at least one of the road curvature and the vehicle density, or the road curvature and the vehicle density can not be included.

[0038] In the first case, the vehicle to which the terminal device belongs can drive from the coverage area of the UPF-B to the coverage area of the UPF-A, and move from the coverage area of the EC2 to the coverage area of the EC1, and the overlapping area of the coverage area of the UPF-A and the coverage area of the UPF-B can be provided with a sensing device and a signal lamp device. In this case, the sensing device and the signal lamp device can report data to the EC2 or the EC1; the RC can determine that the target UPF is the UPF-A and the target computing node is the EC1; and then control the terminal device to switch from the UPF-B to the UPF-A and control the terminal device to switch from the EC2 to the EC1.

[0039] In the second case, the vehicle to which the terminal device belongs can drive in the coverage area of the UPF-B, and move from the coverage area of the EC2 to the coverage area of the EC1, and the sensing device and the signal lamp device can be provided in the coverage area of the UPF-B. In this case, the sensing device and the signal lamp device can report data to the EC2 or the EC1; the RC can determine that the target UPF is the UPF-B and the target computing node is the EC1; and then control the terminal device to keep connected with the UPF-B and control the terminal device to switch from the EC2 to the EC1.

[0040] In the third case, the vehicle to which the terminal device belongs can drive in the coverage area of the UPF-B and drive in the coverage area of the EC2, and the sensing device and the signal lamp device can be provided in the coverage area of the UPF-B. In this case, the sensing device and the signal lamp device can report data to the EC2; the RC can determine that the target UPF is the UPF-B and the target computing node is the EC2; and then control the terminal device to keep connected with the UPF-B and control the terminal device to keep connected with the EC2.

[0041] In the fourth case, the vehicle to which the terminal device belongs can drive from the coverage area of the UPF-B to the coverage area of the UPF-A, and drive in the coverage area of the EC2, and the sensing device and the signal lamp device can be provided in the coverage area of the UPF-B. In this case, the sensing device and the signal lamp device can report data to the EC2; the RC can determine that the target UPF is the UPF-A and the target computing node is the EC2; and then control the terminal device to switch from the UPF-B to the UPF-A and control the terminal device to keep connected with the EC2.

[0042] It should be noted that the four cases described above can be adjusted to configure the sensing device and the signal light device, and then four other cases are obtained. For example, the first case is adjusted to a case where no sensing device and signal light device are arranged in the overlapping area of the UPF-A coverage area and the UPF-B coverage area. For another example, the second case to the fourth case is adjusted to three cases where no sensing device and signal light device are arranged in the UPF-B coverage area. The other four cases are not described in detail here, and can be referred to the first case to the fourth case.

[0043] It should be further noted that the four cases described above can be replaced with UPF-A+EC1 in the current connection mode, and the target UPF involved therein is replaced with UPF-B, and the target computing node involved therein is replaced with EC2, to obtain four other cases.

[0044] For example, in the fifth case, the terminal device belongs to a vehicle that can drive from the UPF-A coverage area to the non-UPF-A coverage area and still in the UPF-C coverage area, and can move from the EC1 coverage area to the non-EC1 coverage area and still in the RC coverage area, and the RC coverage area can be provided with a sensing device and a signal light device. In this case, the sensing device and the signal light device can report data to EC1 or RC; RC can determine that the target UPF is UPF-C and the target computing node is RC; and then control the terminal device to switch from UPF-A to UPF-C and control the terminal device to switch from EC1 to RC.

[0045] For example, in the sixth case, the terminal device belongs to a vehicle that can drive from the UPF-A coverage area to the non-UPF-A coverage area and still in the UPF-C coverage area, and can drive in the EC1 coverage area, and the EC1 coverage area can be provided with a sensing device and a signal light device. In this case, the sensing device and the signal light device can report data to EC1; RC can determine that the target UPF is UPF-C and the target computing node is EC1; and then control the terminal device to switch from UPF-A to UPF-C and control the terminal device to keep connected with EC1.

[0046] In the seventh case, the terminal device belongs to a vehicle which can travel in the coverage area of the UPF-A, moves from the coverage area of the EC1 to the coverage area of the RC, and the coverage area of the RC can be provided with the sensing device and the signal lamp device. In this case, the sensing device and the signal lamp device can report data to the EC1 or the RC; the RC can determine that the target UPF is the UPF-A and the target computing node is the RC; and then control the terminal device to keep connected to the UPF-A and switch from the EC1 to the RC.

[0047] In the eighth case, the terminal device belongs to a vehicle which can travel in the coverage area of the UPF-A and the coverage area of the EC1, and the coverage area of the EC1 can be provided with the sensing device and the signal lamp device. In this case, the sensing device and the signal lamp device can report data to the EC1; the RC can determine that the target UPF is the UPF-A and the target computing node is the EC1; and then control the terminal device to keep connected to the UPF-A and keep connected to the EC1.

[0048] It should be noted that, for the above four cases, the sensing device and the signal lamp device can be adjusted to obtain another four cases. For example, the fifth case and the seventh case are adjusted to obtain two cases in which the sensing device and the signal lamp device are not provided in the overlapping area of the coverage area of the RC. For another example, the sixth case and the eighth case are adjusted to obtain two cases in which the sensing device and the signal lamp device are not provided in the coverage area of the EC1.

[0049] It should be further noted that, for the above four cases, the current connection mode can be replaced by the UPF-B+EC2 to obtain another four cases.

[0050] In step 103, the switching strategy is sent to the terminal device.

[0051] In the embodiments of the present disclosure, the process of step 103 performed by the cloud control platform can be, for example, that the current UPF network element sends the network element information of the target UPF network element to the terminal device, and instructs the terminal device to switch from the current UPF network element to the target UPF network element; and / or the current computing node sends the node information of the target computing node to the terminal device, and instructs the terminal device to switch from the current computing node to the target computing node.

[0052] The terminal device can establish a connection with the target UPF network element after receiving the network element information of the target UPF network element, and then can interrupt the connection with the current UPF network element. The terminal device can establish a connection with the target computing node after receiving the node information of the target computing node, and then can interrupt the connection with the current computing node.

[0053] In the process of UPF switching, the current UPF network element and the target UPF network element can interact with each other. The data exchanged may, for example, be session context on the current UPF and user plane data flow. In the process of computing node switching, the current computing node and the target computing node can exchange data. The data exchanged may, for example, be an unfinished computing task in the current computing node and related data thereof.

[0054] In the service guarantee method of the embodiments of the present disclosure, the cloud control platform obtains current network state data and a current connection mode of a terminal device, wherein a vehicle to which the terminal device belongs is in a switching area, and the current connection mode includes a current user plane function (UPF) network element and a current computing node. According to the current network state data and the current connection mode, a switching strategy corresponding to the terminal device is determined, wherein the switching strategy indicates that the terminal device switches to a target UPF network element and / or a target computing node. The switching strategy is sent to the terminal device. The switching strategy is determined in combination with the current network state data and the current connection mode of the terminal device, so that the determined switching strategy can be applied to the current network environment of the terminal device, ensuring successful switching, thereby improving switching efficiency and guaranteeing service continuity of the terminal device.

[0055] Figure 3 A flowchart of the service guarantee method of an embodiment of the present disclosure is shown. It should be noted that the service guarantee method of the present embodiment can be applied to a service guarantee device, which can be configured in an electronic device to enable the electronic device to perform a service guarantee function.

[0056] The electronic device can be any device with computing capability, such as a terminal device, a server, a platform, etc. The platform may, for example, be a cloud control platform in a vehicle-road cloud system. The following embodiments take the cloud control platform as an example for illustration.

[0057] As shown in FIG. 1, the method includes the following steps: Figure 3 Step 301: Obtain current network state data and a current connection mode of a terminal device, wherein a vehicle to which the terminal device belongs is in a switching area, and the current connection mode includes a current user plane function (UPF) network element and a current computing node.

[0058] ​At step 302, a target connection mode of the terminal device is determined according to current network state data and a decision model.

[0059] In the embodiments of the present disclosure, the process performed by the cloud control platform at step 302 may, for example, include determining input state space data of the decision model according to the current network state data, wherein the input state space data includes the current network state data and intermediate data determined based on the current network state data; and inputting the input state space data into the decision model to obtain the target connection mode output by the decision model.

[0060] The current network state data may, for example, include reference signal received power (RSRP), signal-to-noise ratio (SNR), base station load rate, link delay, handover delay, rainfall, road curvature, and vehicle density. In the case where the current network state data includes the above parameters, the input state space data may, for example, further include at least one of the following parameters: relative speed of the preceding vehicle, relative acceleration, distance change rate, historical connection mode, current connection mode, real-time network state vector, and adaptive forgetting factor.

[0061] The relative speed of the preceding vehicle, the relative acceleration, and the distance change rate may, for example, be determined by combining driving data of the vehicle and driving data of the preceding vehicle. The real-time network state vector may, for example, be obtained by weighted fusion of the parameters in the current network state data. The adaptive forgetting factor may, for example, be determined by combining the vehicle density.

[0062] The calculation formula of the real-time network state vector may, for example, be as shown in the following formula (1).

[0063] (1) wherein, represents the value of the i th parameter at the t th time point; represents the weight of the i th parameter; represents the network state vector at the t th time point.

[0064] The calculation formula of the adaptive forgetting factor may, for example, be as shown in the following formula (2).

[0065] (2) wherein, k represents an adjustment factor; represents the vehicle density at the t th time point; represents a density threshold value; represents the adaptive forgetting factor at the t th time point. The value of k may, for example, be 2, and the density threshold value may, for example, be 0.6.

[0066] It should be noted that the input state space data can further include normalized historical values of each parameter in the current network state data in a historical time period. The calculation formula of the normalized historical values can be as shown in the following formula (3).

[0067] (3) wherein, denotes the historical value of the i-th parameter; denotes the mean value of the historical value of the i-th parameter; denotes the standard deviation of the historical value of the i-th parameter; denotes the normalized historical value of the i-th parameter.

[0068] In the embodiments of the present disclosure, the decision model can include a decision selection network in a double Q network; the double Q network further includes a decision evaluation network; the decision evaluation network and the decision selection network are trained in combination with sample state space data and a loss function. The calculation formula of the double Q network can be as shown in the following formula (4), for example.

[0069] (4) wherein, denotes a reward function; denotes a reward obtained by the agent after performing an action a in a state s; denotes a discount factor, used to balance the importance of current reward and future reward; denotes a current state; denotes a next state, i.e., a state transferred to after performing the action a; denotes an action selected by the decision selection network in the next state with the maximum Q value ; denotes a Q value of the action evaluated by the decision evaluation network.

[0070] In order to accelerate the training speed of the double Q network, the reward function of the double Q network can include at least one of the following: a time delay reward, a load reward, a safety reward, a resource consumption penalty, and a historical correction term. The calculation formula of the time delay reward can be as shown in the following formula (5); the calculation formula of the load reward can be as shown in the following formula (6); the calculation formula of the safety reward can be as shown in the following formula (7); the calculation formula of the resource consumption penalty can be as shown in the following formula (8); and the calculation formula of the historical correction term can be as shown in the following formula (9).

[0071] (5) (6) (7) (8) (9) wherein, denotes a delay reward at the t th time point; denotes a link delay at the t th time point; denotes a maximum value of the link delay; denotes a load reward at the t th time point; denotes a base station load rate at the t th time point; denotes a maximum value of the base station load rate; denotes a safety reward; denotes a safety distance at the t th time point; denotes a safety distance threshold; denotes a resource consumption penalty value; denotes a connection number of the i th network service at the t th time point; denotes a historical correction term.

[0072] wherein, in order to further accelerate the training speed of the double Q network, the importance of each sample in the training data can be determined, and the samples are extracted from the training data with replacement combined with the importance, for training processing of the double Q network. The calculation formula of the importance of the sample may, for example, be as shown in the following formula (10).

[0073] (10) wherein, denotes the importance of the i th sample; denotes a small positive number selected in advance; denotes a reward function value determined after the i th sample is input into the double Q network. In the embodiments of the present disclosure, after the input state space data is input into the decision model, the decision model can output one action in the action space for each candidate UPF or candidate computing node; and then, the target connection mode is determined in combination with the action corresponding to each candidate UPF and the action corresponding to the candidate computing node. The action space may, for example, be as shown in the following formula (11).

[0074] (11) Step 303, determining a switching strategy corresponding to the terminal device according to the current connection mode and the target connection mode.

[0075] Step 304, sending the switching strategy to the terminal device.

[0076] In this embodiment of the disclosure, after step 304, the cloud control platform may further perform the following process: obtain the current driving data and current environmental data of the terminal device; determine the switching time point based on the current driving data and current environmental data; and, if the switching time point is reached, instruct the terminal device to perform switching processing according to the switching strategy.

[0077] The current driving data of the terminal device may include: current position, current speed, and current acceleration. The calculation formulas for current position, current speed, and current acceleration are shown in formulas (12) to (14) below.

[0078] (12) (13) (14) in, This represents the position at time t+1, i.e., the current position; This represents the velocity at time point t+1, i.e., the current velocity; This represents the acceleration at time point t+1, i.e., the current acceleration; Indicates the change over time; k represents the coefficient; This represents the average historical acceleration.

[0079] The cloud control platform can determine the environmental compensation index based on current environmental data. Current environmental data includes, for example, rain and fog conditions, road slope, and nighttime lighting conditions. The formula for calculating the environmental compensation index is shown in formula (15).

[0080] (15) in, Indicates the environmental compensation index; Indicates the basic environmental index; This represents the compensation factor for the i-th environmental parameter; This represents the compensation weight for the i-th environmental parameter. In this embodiment of the disclosure, the process by which the cloud control platform determines the switching time point based on the current driving data and the current environmental data can be as follows: determining a switching determination result based on the current driving data and the current environmental data; the switching determination result indicates at least one of the following: immediate switching, delayed switching, and maintaining connection; determining whether the current time point is a switching time point based on the switching determination result; if the current time point is not a switching time point, predicting the driving data and environmental data at each future time point based on the current driving data and the current environmental data to determine whether each future time point is a switching time point, until the switching time point is determined.

[0081] The cloud control platform can obtain a matched switching decision result according to the current driving data, the environment compensation index determined based on the current environment data, and the vehicle density query rule library. Alternatively, the cloud control platform can input the current driving data, the environment compensation index, and the vehicle density into a decision model to obtain a switching decision result output by the decision model.

[0082] It should be noted that the details of steps 301 and 304 can refer to steps 101 and 103 in the embodiment shown in Figure 1 The details of steps 101 and 103 in the embodiment shown in

[0083] In the service guarantee method of the embodiments of the present disclosure, the cloud control platform obtains current network state data and a current connection mode of a terminal device, wherein the vehicle to which the terminal device belongs is in a switching area, and the current connection mode includes a current user plane function UPF network element and a current computing node. The cloud control platform determines a target connection mode of the terminal device according to the current network state data and a decision model, determines a switching strategy corresponding to the terminal device according to the current connection mode and the target connection mode, and sends the switching strategy to the terminal device. According to the current network state data and the decision model to determine the target connection mode and further determine the switching strategy, the accuracy of the determined switching strategy can be improved in combination with the accuracy of the decision model, so as to further ensure the switching success, thereby further improving the switching efficiency and guaranteeing the service continuity of the terminal device.

[0084] Figure 4 The flowchart of the service guarantee method of one embodiment of the present disclosure is shown. It should be noted that the service guarantee method of the present embodiment can be applied to a service guarantee device, which can be configured in an electronic device to enable the electronic device to perform a service guarantee function.

[0085] The electronic device can be any device with computing capability, such as a terminal device, a server, a platform, etc. The terminal device can be, for example, a vehicle-mounted terminal in a vehicle in a vehicle-infrastructure-cloud system. The following embodiments are described by taking the terminal device as an example.

[0086] As shown in Figure 4 The method includes the following steps: Step 401: In a case where a vehicle to which a terminal device belongs is in a switching area, a tracking area code TAC is sent to a current user plane function UPF network element to instruct the current UPF network element to collect current network state data of the terminal device and report the cloud control platform.

[0087] In the embodiments of the present disclosure, the process of step 401 performed by the terminal device may, for example, be that, in a case where the vehicle to which the terminal device belongs is in a handover area, a tracking area code (TAC) is sent to the base station to which the terminal device belongs, to instruct the base station to acquire the RSRP and signal-to-noise ratio reported by the terminal device; the above-mentioned data reported by the terminal device, the base station load rate, the link delay and the handover delay are reported to the current UPF; and the current UPF further reports the above-mentioned data to the cloud control platform.

[0088] Step 402: sending a cell identity to the current computing node, to instruct the current computing node to collect the current network state data of the terminal device and report the cloud control platform.

[0089] In the embodiments of the present disclosure, in a case where the current computing node receives the cell identity sent by the terminal device, the data of the roadside perception device and the signal lamp device are acquired, and the data reported by the third-party platform is acquired; and the above-mentioned data is reported to the cloud control platform.

[0090] Step 403: receiving a handover strategy issued by the cloud control platform; wherein the handover strategy is determined according to the current network state data and the current connection mode of the terminal device; and the current connection mode includes the current UPF network element and the current computing node.

[0091] In the embodiments of the present disclosure, after acquiring the current network state data of the terminal device, the cloud control platform may acquire the current connection mode of the terminal device; determine the handover strategy corresponding to the terminal device according to the current network state data and the current connection mode; the handover strategy instructs the terminal device to switch to a target UPF network element and / or a target computing node; and then the handover strategy is issued to the terminal device.

[0092] In the embodiments of the present disclosure, the current network state data acquired by the cloud control platform may include at least one of the following parameters: reference signal received power (RSRP), signal-to-noise ratio, base station load rate, link delay, handover delay, rainfall, road curvature, and vehicle density.

[0093] Step 404: performing handover processing according to the handover strategy.

[0094] In the embodiments of the present disclosure, in one example, the handover strategy instructs the terminal device to switch to a target UPF network element. In another example, the handover strategy instructs the terminal device to switch to a target computing node. In another example, the handover strategy instructs the terminal device to switch to a target UPF network element and a target computing node.

[0095] Specifically, when the handover strategy instructs the terminal device to switch to the target UPF network element and the target computing node, the terminal device can establish a connection with the target UPF network element and then terminate the connection with the current UPF network element; at the same time, the terminal device can establish a connection with the target computing node and then terminate the connection with the current computing node.

[0096] During UPF handover, the current UPF network element and the target UPF network element can exchange data. The data handed over includes, for example, the session context and user plane data stream on the current UPF. Similarly, during compute node handover, the current compute node and the target compute node can exchange data. This data handover includes, for example, unfinished compute tasks and related data in the current compute node.

[0097] In the service assurance method of this embodiment, the terminal device, when the vehicle to which the terminal device belongs is in a handover area, sends a Tracking Area Code (TAC) to the current User Plane Function (UPF) network element to instruct the current UPF network element to collect the current network status data of the terminal device and report it to the cloud control platform; sends a cell identifier to the current computing node to instruct the current computing node to collect the current network status data of the terminal device and report it to the cloud control platform; receives a handover strategy issued by the cloud control platform; the handover strategy is determined based on the current network status data and the current connection mode of the terminal device; the current connection mode includes the current UPF network element and the current computing node; and performs handover processing according to the handover strategy; wherein, the handover strategy is determined by combining the current network status data and the current connection mode of the terminal device, so that the determined handover strategy can be applied to the current network environment of the terminal device, ensuring a successful handover, thereby improving handover efficiency and ensuring the service continuity of the terminal device.

[0098] The following example illustrates this. For example... Figure 5 The diagram shown is a schematic representation of the vehicle-road-cloud system architecture. Figure 5 The system comprises a four-tiered collaborative architecture: the perception layer, the transmission layer, the decision-making layer, and the execution layer.

[0099] The perception layer includes roadside sensing devices and 5G base stations. Roadside sensing devices include, for example, millimeter-wave radar, cameras, lidar, and roadside units (RSUs). The millimeter-wave radar, cameras, and lidar are used to identify and collect information about the surrounding environment, traffic signs, vehicles, pedestrians, and surrounding objects. The roadside units (RSUs) interact with the V2X communication module in the terminal device via a PC5 link connection. The 5G base stations interact with the V2X communication module in the terminal device via a Uu link connection.

[0100] The SDN (Software Defined Network) and the NFV (Network Function Virtualization) are arranged in the transmission layer, so as to realize the scheduling of network traffic.

[0101] The EC (Edge Computing Node), the RC (Regional Computing Node) and the AI DE (AI Decision Engine) are arranged in the decision layer. The AI decision engine is used for decision processing of the switching strategy.

[0102] The UPF (User Plane Function), the cloud control platform and the V2X communication module are arranged in the execution layer. The UPF is used for data forwarding and routing in the whole process. The cloud control platform is used for centralized control and management of the vehicle-road cloud and related systems. The V2X communication module has two communication connection modes, which are used to ensure the communication between the vehicle and the outside world.

[0103] Figure 6 A structural schematic diagram of a service guarantee device of an embodiment of the present disclosure.

[0104] As shown in Figure 6 The service guarantee device is applied to the cloud control platform and can include an acquisition module 601, a determination module 602 and a sending module 603.

[0105] The acquisition module 601 is used for acquiring current network state data and a current connection mode of a terminal device. The vehicle to which the terminal device belongs is in a switching area. The current connection mode includes a current UPF (User Plane Function) network element and a current computing node. The determination module 602 is used for determining a switching strategy corresponding to the terminal device according to the current network state data and the current connection mode. The switching strategy indicates that the terminal device is switched to a target UPF network element and / or a target computing node. The sending module 603 is used for sending the switching strategy to the terminal device.

[0106] In an embodiment of the present disclosure, the current network state data includes at least one of the following parameters: RSRP (Reference Signal Received Power), signal-to-noise ratio, base station load rate, link delay, switching delay, rainfall, road curvature and vehicle density.

[0107] In an embodiment of the present disclosure, the determination module 602 includes a first determination unit and a second determination unit. The first determination unit is used for determining a target connection mode of the terminal device according to the current network state data and a decision model. The second determination unit is used for determining the switching strategy corresponding to the terminal device according to the current connection mode and the target connection mode.

[0108] In an embodiment of the present disclosure, the first determining unit is specifically configured to determine input state space data of the decision model according to the current network state data; the input state space data includes the current network state data and intermediate data determined based on the current network state data; and input the input state space data into the decision model to obtain the target connection mode output by the decision model.

[0109] In an embodiment of the present disclosure, the apparatus further includes an indicating module; the obtaining module 601 is further configured to obtain current driving data and current environment data of the terminal device; the determining module 602 is further configured to determine a switching time point according to the current driving data and the current environment data; and the indicating module is configured to instruct the terminal device to perform switching processing according to the switching strategy in a case where the switching time point is reached.

[0110] In an embodiment of the present disclosure, the determining module is specifically further configured to determine a switching decision result according to the current driving data and the current environment data; the switching decision result indicates at least one of the following: immediate switching, delayed switching, and maintaining connection; determine whether the current time point is a switching time point according to the switching decision result; in a case where the current time point is not a switching time point, predict driving data and environment data at each future time point according to the current driving data and the current environment data to determine whether the each future time point is a switching time point, until the switching time point is determined.

[0111] In the service guarantee apparatus of the embodiments of the present disclosure, the cloud control platform obtains current network state data and a current connection mode of a terminal device; the vehicle to which the terminal device belongs is in a switching area; the current connection mode includes a current user plane function (UPF) network element and a current computing node; determines a switching strategy corresponding to the terminal device according to the current network state data and the current connection mode; the switching strategy indicates that the terminal device switches to a target UPF network element and / or a target computing node; sends the switching strategy to the terminal device; the switching strategy is determined in combination with the current network state data and the current connection mode of the terminal device, so that the determined switching strategy can be applied to the current network environment of the terminal device, ensuring successful switching, thereby improving switching efficiency and guaranteeing service continuity of the terminal device.

[0112] Figure 7 FIG. 1 is a structural schematic diagram of the service guarantee apparatus of an embodiment of the present disclosure.

[0113] As shown in FIG. 1, the service guarantee apparatus of the embodiment of the present disclosure includes a cloud control platform and a terminal device. Figure 7As shown, the service support device, applied to a terminal device, may include: a first transmitting module 701, a second transmitting module 702, a receiving module 703, and a switching processing module 704.

[0114] The system comprises the following components: a first sending module 701, configured to send a Tracking Area Code (TAC) to the current User Plane Function (UPF) network element when the vehicle to which the terminal device belongs is in a handover area, instructing the current UPF network element to collect the current network status data of the terminal device and report it to the cloud control platform; a second sending module 702, configured to send a cell identifier to the current computing node, instructing the current computing node to collect the current network status data of the terminal device and report it to the cloud control platform; a receiving module 703, configured to receive a handover strategy issued by the cloud control platform, wherein the handover strategy is determined based on the current network status data and the current connection mode of the terminal device, the current connection mode including the current UPF network element and the current computing node; and a handover processing module 704, configured to perform handover processing according to the handover strategy.

[0115] In the service assurance device of this embodiment, the terminal device, when the vehicle to which the terminal device belongs is in the handover area, sends a Tracking Area Code (TAC) to the current User Plane Function (UPF) network element to instruct the current UPF network element to collect the current network status data of the terminal device and report it to the cloud control platform; sends a cell identifier to the current computing node to instruct the current computing node to collect the current network status data of the terminal device and report it to the cloud control platform; and receives a handover strategy issued by the cloud control platform. The handover strategy is determined based on the current network status data and the current connection mode of the terminal device. The current connection mode includes the current UPF network element and the current computing node. Handover processing is performed according to the handover strategy. The handover strategy is determined by combining the current network status data and the current connection mode of the terminal device, ensuring that the determined handover strategy is applicable to the current network environment of the terminal device, guaranteeing a successful handover, thereby improving handover efficiency and ensuring the service continuity of the terminal device.

[0116] According to a fifth aspect of the present disclosure, a vehicle-road-cloud system is also provided, the system comprising: a cloud control platform and terminal devices; the cloud control platform and the terminal devices being communicatively connected; the cloud control platform being configured to perform actions such as... Figure 1 or Figure 3 The service assurance method described in the embodiment; the terminal device is used to perform, as in... Figure 4 The business assurance method described in the embodiments.

[0117] According to a sixth aspect of the embodiments of the present disclosure, an electronic device is provided, including: a processor; a memory for storing processor-executable instructions, wherein the processor is configured to implement the service assurance method as described above.

[0118] To implement the above-mentioned embodiments, the present disclosure further provides a storage medium.

[0119] When the instructions in the storage medium are executed by the processor, the processor can execute the service assurance method as described above.

[0120] To implement the above-mentioned embodiments, the present disclosure further provides a computer program product.

[0121] When the computer program product is executed by the processor of the electronic device, the electronic device can execute the method as described above.

[0122] Figure 8 A structural block diagram of an electronic device according to an exemplary embodiment is shown. Figure 8 The electronic device shown is merely an example, and should not bring any limitation to the functions and use range of the embodiments of the present disclosure.

[0123] As shown in Figure 8 The electronic device 1000 includes a processor 111, which can perform various appropriate actions and processes according to programs stored in a read only memory (ROM) 112 or loaded from a memory 116 into a random access memory (RAM) 113. Various programs and data required for the operation of the electronic device 1000 are also stored in the RAM 113. The processor 111, the ROM 112, and the RAM 113 are connected to each other through a bus 114. An input / output (I / O) interface 115 is also connected to the bus 114.

[0124] The following components are connected to the I / O interface 115: the memory 116, including a hard disk or the like; and a communication section 117, including a network interface card such as a local area network (LAN) card, a modem, or the like, which performs communication processing via a network such as the Internet; and a drive 118, which is connected to the I / O interface 115 as necessary.

[0125] In particular, according to embodiments of the present disclosure, the processes described above with reference to the flowcharts can be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program carried on a computer-readable medium, the computer program containing program code for executing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network by the communication section 117. When the computer program is executed by the processor 111, the above-described functions defined in the methods of the present disclosure are executed.

[0126] In an exemplary embodiment, a storage medium including instructions, such as a memory including instructions, is also provided, which can be executed by the processor 111 of the electronic device 1000 to complete the above-described methods. Optionally, the storage medium can be a non-transitory computer-readable storage medium, for example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0127] In the present disclosure, the computer readable storage medium can be any tangible medium that contains or stores a program used by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, the computer readable signal medium can include a data signal propagated in baseband or propagated as a carrier wave in a propagated data signal, in which the computer readable program code is embodied. Such propagated data signal can take a variety of forms, including but not limited to electro-magnetic, optical, or any suitable combination thereof. The computer readable medium can also be any computer readable medium other than the computer readable storage medium that can be used to carry or store program codes used by or in connection with an instruction execution system, apparatus, or device, and can transmit, propagate or transport program codes for use by or in connection with an instruction execution system, apparatus, or device. Program codes embodied on the computer readable medium can be transmitted using any suitable medium, including but not limited to wireless, wire, optical cable, RF, etc., or any suitable combination thereof.

[0128] Furthermore, the word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word exemplary is intended to present concepts in a concrete manner. As used in this application, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise, or clear from context, "X employs A or B" is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then "X employs A or B" is satisfied under any of the foregoing instances. In addition, the articles "a" and "an" as used in this application and the appended claims should generally be construed to mean "one or more" unless specified otherwise or clear from context to be directed to a singular form. Thus, use of the articles in this application and the following claims is not limiting.

[0129] Also, although the disclosure has been described with respect to one or more implementations, those skilled in the art will readily appreciate that other alternatives can be used. It is contemplated that the disclosure can be carried out in alternate embodiments and implementations not specifically described herein. The disclosure is not to be limited in scope by the brief description or drawings given herein. The various embodiments and implementations of the disclosure can be used alone or in combination with one another. Those skilled in the art will readily recognize numerous adaptations and modifications which can be made within the scope of the present disclosure. For example, although the disclosure has been described with respect to one or more implementations, in which only certain features can be present, some features can be used, while others can not be used in a given implementation, as can be desirable for any given or particular application. Still other features can not be used for a given implementation. Therefore, the disclosure is not to be limited in scope by the brief description or drawings given herein. It is not intended to be exhaustive or to show every possible implementation. Certain additional aspects, features, and details regarding the disclosure are also discussed in the following written description and attached claims. The disclosure is not limited to the implementation described and / or shown herein, but can be used in any number of applications including, for example, those described in the following written description and attached claims.

[0130] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features of the disclosure disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

[0131] It is to be understood that the disclosure is not limited to the precise construction described and shown herein and that changes can be made in various embodiments without departing from the scope of the disclosure. The scope of the disclosure is limited only by the claims appended hereto.

Claims

1. A business assurance method, characterized in that, Applied to a cloud control platform, the method includes: Obtain the current network status data and current connection mode of the terminal device; wherein, the vehicle to which the terminal device belongs is in a handover zone; the current connection mode includes the current User Plane Function (UPF) network element and the current computing node; Based on the current network status data and the current connection mode, a handover strategy corresponding to the terminal device is determined; wherein, the handover strategy instructs the terminal device to switch to the target UPF network element and / or the target computing node; The handover strategy is sent to the terminal device.

2. The method according to claim 1, characterized in that, The current network status data includes at least one of the following parameters: Reference Signal Received Power (RSRP), Signal-to-Noise Ratio (SNR), Base Station Load Rate, Link Delay, Handover Delay, Rainfall, Road Curvature, and Vehicle Density.

3. The method according to claim 1 or 2, characterized in that, The step of determining the handover strategy corresponding to the terminal device based on the current network status data and the current connection mode includes: Based on the current network status data and the decision model, the target connection mode of the terminal device is determined; Based on the current connection mode and the target connection mode, determine the switching strategy corresponding to the terminal device.

4. The method according to claim 3, characterized in that, Determining the target connection mode of the terminal device based on the current network status data and the decision model includes: Based on the current network state data, the input state space data of the decision model is determined; the input state space data includes the current network state data and intermediate data determined based on the current network state data. The input state space data is input into the decision model to obtain the target connection pattern output by the decision model.

5. The method according to claim 1, characterized in that, After sending the handover policy to the terminal device, the method further includes: Obtain the current driving data and current environmental data of the terminal device; The switching time point is determined based on the current driving data and the current environment data; When the switching time point is reached, the terminal device is instructed to perform a switching process according to the switching strategy.

6. The method according to claim 5, characterized in that, Determining the switching time point based on the current driving data and current environmental data of the terminal device includes: Based on the current driving data and the current environment data, a handover determination result is determined; the handover determination result indicates at least one of the following: immediate handover, delayed handover, and maintaining connection; Determine whether the current time point is a switching time point based on the switching determination result; If the current time point is not a switching time point, based on the current driving data and the current environment data, predict the driving data and environment data at each future time point to determine whether each future time point is a switching time point, until the switching time point is determined.

7. A business assurance method, characterized in that, Applied to a terminal device, the method includes: When the vehicle to which the terminal device belongs is in a switching zone, a Tracking Area Code (TAC) is sent to the current User Plane Function (UPF) network element to instruct the current UPF network element to collect the current network status data of the terminal device and report it to the cloud control platform. Send a cell identifier to the current computing node to instruct the current computing node to collect the current network status data of the terminal device and report it to the cloud control platform; The system receives a switching strategy issued by the cloud control platform; wherein the switching strategy is determined based on the current network status data and the current connection mode of the terminal device; the current connection mode includes the current UPF network element and the current computing node. The switching process is performed according to the switching strategy described above.

8. A business support device, characterized in that, The device, applied to a cloud control platform, includes: The acquisition module is used to acquire the current network status data and current connection mode of the terminal device in the vehicle-road-cloud system; wherein, the vehicle to which the terminal device belongs is in a switching area; the current connection mode includes the current User Plane Function (UPF) network element and the current computing node; The determining module is configured to determine the handover strategy corresponding to the terminal device based on the current network status data and the current connection mode; wherein the handover strategy instructs the terminal device to switch to the target UPF network element and / or the target computing node; The sending module is used to send the handover strategy to the terminal device.

9. A business support device, characterized in that, Applied to a terminal device, the device includes: The first sending module is used to send a Tracking Area Code (TAC) to the current User Plane Function (UPF) network element when the vehicle to which the terminal device belongs is in a switching area, so as to instruct the current UPF network element to collect the current network status data of the terminal device and report it to the cloud control platform. The second sending module is used to send a cell identifier to the current computing node to instruct the current computing node to collect the current network status data of the terminal device and report it to the cloud control platform; A receiving module is used to receive a switching strategy issued by the cloud control platform; wherein the switching strategy is determined based on the current network status data and the current connection mode of the terminal device; the current connection mode includes the current UPF network element and the current computing node; The switching processing module is used to perform switching processing according to the switching strategy.

10. A vehicle-road-cloud system, characterized in that, include: A cloud control platform and terminal devices; the cloud control platform and the terminal devices are communicatively connected. The cloud control platform is used to execute the business assurance method as described in any one of claims 1 to 6; The terminal device is used to execute the service assurance method as described in claim 7.

11. An electronic device, characterized in that, include: processor; Memory used to store the processor's executable instructions; The processor is configured as follows: The steps of implementing the business assurance method as described in any one of claims 1 to 7.

12. A non-transitory computer-readable storage medium, wherein when instructions in the storage medium are executed by a processor, the processor is able to perform the service assurance method as described in any one of claims 1 to 7.

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