5g converged network synchronization timing service deployment method, system, device and medium

Abstract

This invention provides a method, system, device, and medium for deploying synchronization and timing services in a 5G converged network. The method includes: acquiring a time synchronization request sent by a target converged communication terminal, whereby the time synchronization request is generated when the target converged communication terminal receives a timing request sent by a target power device; generating a time synchronization task based on the time synchronization request, and determining a time synchronization path between the target converged communication terminal and a target 5G-MEC server node based on the time synchronization task; orchestrating the time synchronization virtual network function instances corresponding to the time synchronization task based on the time synchronization path, and determining a time synchronization service function chain; deploying timing services to multiple target nodes based on the time synchronization VNFs involved in the time synchronization service function chain, and determining the deployment result. This invention can significantly improve the flexibility and applicability of implementing timing services in the context of a wide-coverage power network.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method, system, device and medium for deploying 5G converged network synchronization timing service. Background Technology

[0002] Currently, communication in the energy internet is the foundation for building a new power system based on new energy sources. Furthermore, the low latency, high bandwidth, high reliability, and massive connectivity provided by 5G technology can sustainably drive improvements in power grid management efficiency and transformation. Therefore, given that the construction and application of 5G power networks have not yet been widely implemented, and that unified access between power terminal equipment and 5G communication infrastructure is not yet possible, how to achieve time synchronization services within the context of a wide-coverage power network of 5G communication infrastructure and power terminals has become a critical issue that urgently needs to be addressed.

[0003] In related technologies, to achieve the goal of wide-coverage power grid networking, a large number of routing infrastructures can be deployed for 5G base stations in 5G communication infrastructure. Alternatively, the goal of wide-coverage power grid networking between 5G communication infrastructure and power terminals can be achieved through private networks and dedicated lines. Then, time synchronization services can be implemented based on this wide-coverage power grid networking.

[0004] However, both 5G base station deployment and private network / dedicated line methods increase labor and economic costs, and the flexibility of power grid wide coverage networking is not high, resulting in low flexibility and applicability of time synchronization services in the context of power grid wide coverage networks. Summary of the Invention

[0005] This invention provides a method, system, device, and medium for deploying 5G converged network synchronization timing service, which addresses the shortcomings of existing technologies in implementing timing services in the context of wide-coverage power networks, resulting in low flexibility and applicability. This invention significantly improves the flexibility and applicability of implementing timing services in the context of wide-coverage power networks.

[0006] This invention provides a method for deploying a 5G converged network synchronization timing service, comprising:

[0007] Obtain a time synchronization request sent by the target converged communication terminal, wherein the time synchronization request is generated when the target converged communication terminal receives a time synchronization request sent by the target power equipment;

[0008] Based on the time synchronization request, a time synchronization task is generated, and based on the time synchronization task, a time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined.

[0009] Based on the time synchronization path, VNF orchestration is performed on the time synchronization virtual network function instance corresponding to the time synchronization task to determine the time synchronization service function chain.

[0010] Based on the time synchronization VNF involved in the time synchronization service function chain, time synchronization service is deployed to multiple target nodes, and the deployment result is determined; the deployment result is used to instruct the target 5G-MEC server node and the target power equipment to transmit time information.

[0011] The plurality of target nodes include 5G-MEC server nodes in the 5G-MEC network that are not the target 5G-MEC server nodes, converged communication terminals in the converged terminal Mesh subnet that are not the target converged communication terminals, and the target power equipment.

[0012] According to a 5G converged network synchronization time service deployment method provided by the present invention, the step of determining the time synchronization path between the target converged communication terminal and the target 5G-MEC server node based on the time synchronization task includes:

[0013] Based on the time synchronization task, the target 5G-MEC server node is determined from the 5G-MEC network, and a historical synchronization path query request is generated.

[0014] Based on the historical synchronization path query request, query the historical time synchronization path set that matches the time synchronization task;

[0015] Based on the query results, the time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined.

[0016] According to a method for deploying a 5G converged network synchronization time service provided by the present invention, the step of determining the time synchronization path between the target converged communication terminal and the target 5G-MEC server node based on the query results includes:

[0017] Based on the successful query result, the historical time synchronization path that exists in the historical time synchronization path set is determined as the time synchronization path between the target converged communication terminal and the target 5G-MEC server node.

[0018] Based on the query failure result, the network topology is obtained, and a target 5G-MEC server in the 5G-MEC network is allocated to the target converged communication terminal based on the network topology. The time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined.

[0019] The network topology consists of each 5G-MEC server node in the 5G-MEC network, each converged communication terminal in the converged terminal Mesh subnet, and the target power equipment.

[0020] According to a method for deploying 5G converged network synchronization timing service provided by the present invention, the method further includes:

[0021] If no historical time synchronization path matching the time synchronization task is found in the historical time synchronization path set, the historical time synchronization path set is updated based on the time synchronization path determined this time.

[0022] According to a method for deploying a 5G converged network synchronization time service provided by the present invention, the step of deploying the time service to multiple target nodes based on the time synchronization VNFs involved in the time synchronization service function chain and determining the deployment result includes:

[0023] Obtain multiple virtual network time synchronization functions to execute the time synchronization task;

[0024] Based on the time synchronization VNFs involved in the time synchronization service function chain, each virtual network time synchronization function is deployed to the multiple target nodes, and the shortest path set connecting the multiple target nodes is determined based on the KSP algorithm; wherein, the shortest path set is the set of multiple deployment paths;

[0025] The target shortest path is determined from the set of shortest paths, and time synchronization services are deployed for the multiple target nodes in the target shortest path to determine the deployment result; wherein the target shortest path is the optimal deployment path among the multiple deployment paths.

[0026] According to a method for deploying a 5G converged network synchronization timing service provided by the present invention, the step of determining the target shortest path from the shortest path set includes:

[0027] The resource utilization rate of each target node, the influence coefficient of each shortest path in the shortest path set on the multiple target nodes, the link status of the target converged communication terminal in the converged terminal Mesh subnet, and the total latency of the target converged communication terminal initiating the time synchronization request are obtained.

[0028] Under the constraints of resource utilization, influence coefficients, link status, and total delay, the target shortest path is determined from the set of shortest paths.

[0029] According to a method for deploying 5G converged network synchronization timing service provided by the present invention, the method further includes:

[0030] Based on the deployment results, the target converged communication terminal is instructed to change its local time according to the time information provided by the target 5G-MEC server node.

[0031] The present invention also provides a 5G converged network synchronization timing service deployment system, comprising a 5G-MEC network, a converged terminal Mesh subnet, target power equipment, and a network function virtualization control and orchestration subsystem, wherein the 5G-MEC network, the converged terminal Mesh subnet, the target power equipment, and the network function virtualization control and orchestration subsystem are connected in communication.

[0032] The 5G-MEC network includes a target 5G-MEC server node capable of receiving precise GPS / BDS timing messages.

[0033] The target power equipment is used to send a time synchronization request to the converged terminal Mesh subnet;

[0034] The converged terminal Mesh subnet includes a target converged communication terminal that receives the time synchronization request. When the target converged communication terminal receives the time synchronization request, it generates a time synchronization request.

[0035] The network function virtualization control orchestration subsystem is used to execute any of the above-described 5G converged network synchronization time service deployment methods when the time synchronization request is received.

[0036] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the 5G converged network synchronization timing service deployment method described above.

[0037] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the 5G converged network synchronization timing service deployment method as described above.

[0038] The present invention provides a method, system, device, and medium for deploying 5G converged network synchronization timing services. The method first acquires a time synchronization request sent by a target converged communication terminal, generates a time synchronization task based on the time synchronization request, determines the time synchronization path between the target converged communication terminal and the target 5G-MEC server node, then further orchestrates the time synchronization virtual network function instance corresponding to the time synchronization task based on the time synchronization path, determines the time synchronization service function chain, and finally deploys timing services to multiple target nodes based on the time synchronization VNFs involved in the time synchronization service function chain, so as to instruct the target 5G-MEC server node and the target power equipment to transmit time information based on the deployment results. Since the time synchronization request is generated when the target converged communication terminal receives the time synchronization request sent by the target power equipment, the multiple target nodes include the 5G-MEC server nodes that are not the target 5G-MEC server nodes in the 5G-MEC network, the converged communication terminals that are not the target converged communication terminals in the converged terminal Mesh subnet, and the target power equipment. Therefore, not only can the network-side functions and application deployments be pushed down to the edge of the wireless access network of the end user equipment by forming a 5G-MEC network, which is composed of multiple 5G-MEC server nodes, making application deployment more flexible, network capabilities stronger, and service processing closer to the terminal, thus better meeting the application requirements of high bandwidth and low latency in the power system; but also, by forming a lower-layer network composed of multiple converged communication terminals and establishing a converged terminal Mesh network between the power equipment, the lower-layer self-organizing network can receive signals sent by various power wireless communication terminals such as 5G, WiFi, LoRa, and ZigBee, achieving the goal of wide coverage, convergence of multiple wireless communication systems, and flexible service deployment, thereby greatly improving the flexibility and applicability of time synchronization services in the context of a wide-coverage power network. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This is a flowchart illustrating the deployment method of 5G converged network synchronization timing service provided by the present invention;

[0041] Figure 2 This is a network architecture diagram of the 5G converged network synchronization timing service deployment system provided by the present invention;

[0042] Figure 3This is a comparative diagram showing the success rate of the time synchronization service provided by this invention;

[0043] Figure 4 This is a comparative diagram showing the number of times the time synchronization service received by the present invention.

[0044] Figure 5 This is a schematic diagram of the structure of the 5G converged network synchronization timing service deployment device provided by the present invention;

[0045] Figure 6 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0047] The following is combined with Figures 1-6 This invention describes a method, system, device, and medium for deploying 5G converged network synchronization timing services. The execution entity of the 5G converged network synchronization timing service deployment method is a Network Functions Virtualization (NFV) control and orchestration subsystem. This NFV control and orchestration subsystem includes at least network control functions, synchronization control functions, information query functions, information update functions, Virtualized Network Function (VNF) orchestration functions, and Service Function Chain (SFC) deployment functions. Furthermore, this NFV control and orchestration subsystem can be installed in other electronic devices such as personal computers (PCs), portable devices, laptops, smartphones, tablets, and portable wearable devices, or it can be installed in physical servers containing independent hosts, virtual servers hosted in host clusters, or cloud servers. No specific limitations are made here. The following method embodiments use the NFV control and orchestration subsystem as an example for illustration.

[0048] Reference Figure 1 This is a flowchart illustrating the deployment method for 5G converged network synchronization timing service provided by the present invention. Figure 1 As shown, the deployment method for the 5G converged network synchronization and timing service includes the following steps:

[0049] Step 110: Obtain the time synchronization request sent by the target converged communication terminal. The time synchronization request is generated when the target converged communication terminal receives the time synchronization request sent by the target power equipment.

[0050] The target converged terminal can be at least one converged communication terminal in a converged terminal wireless mesh network (Mesh) subnet. A converged terminal Mesh subnet can consist of multiple converged communication terminals. Furthermore, the number of converged terminal Mesh subnets can be one, two, or more. When two or more converged terminal Mesh subnets exist, at least two converged terminal Mesh subnets can form a converged terminal Mesh network. In addition, the time synchronization request carries relevant information, including the target converged communication terminal's identity document (ID) information, time accuracy requirements, supported communication methods, and connection information of the converged terminal Mesh subnet where the target converged communication terminal is located. Supported communication methods include 5G, WiFi, Long Range Radio (LoRa), and short-range, low-speed wireless communication technologies (ZigBee), etc. Further, the target power device can be at least one of multiple power devices.

[0051] Specifically, when the target converged communication terminal receives a time synchronization request from the target power equipment, it can automatically generate a time synchronization request and send this time synchronization request to the NFV control orchestration subsystem, thereby enabling the NFV control orchestration subsystem to obtain the time synchronization request sent by the target converged communication terminal.

[0052] Step 120: Based on the time synchronization request, generate a time synchronization task, and based on the time synchronization task, determine the time synchronization path between the target converged communication terminal and the target 5G-MEC server node.

[0053] The target 5G-MEC server node is a 5G-MEC server node in a 5G-Multi-access Edge Computing (MEC) network that is capable of receiving precise timing messages from the Global Positioning System (GPS) / Beidou Navigation Satellite System (BDS). The 5G-MEC network is a network composed of multiple 5G-MEC server nodes.

[0054] Specifically, the NFV control orchestration subsystem can be composed of a network controller, a synchronization controller, and a network time synchronization database. When the synchronization request response module of the synchronization controller receives a time synchronization request, it can first extract relevant information and then generate a time synchronization task based on the relevant information. This time synchronization task is to establish time synchronization between the target 5G-MEC server node and the target converged communication terminal, so as to determine the time synchronization path between the target converged communication terminal and the target 5G-MEC server node based on this time synchronization task. This time synchronization path can represent that time synchronization has been established between the target converged communication terminal and the target 5G-MEC server node.

[0055] Step 130: Based on the time synchronization path, perform VNF orchestration on the time synchronization virtual network function instance corresponding to the time synchronization task to determine the time synchronization service function chain.

[0056] Among them, the time synchronization service function chain is a function chain of virtual time synchronization service, and the time synchronization service function chain contains a service function chain path, which involves multiple target nodes; the multiple target nodes include 5G-MEC server nodes that are not target 5G-MEC server nodes in the 5G-MEC network, converged communication terminals that are not target converged communication terminals in the converged terminal Mesh subnet, and target power equipment.

[0057] Specifically, when the NFV control orchestration subsystem consists of a network controller, a synchronization controller, and a network time synchronization database, and the synchronization controller determines the time synchronization path between the target converged communication terminal and the target 5G-MEC server node, the synchronization controller can continue to perform VNF orchestration on the time synchronization virtual network function instance corresponding to the time synchronization task based on this time synchronization path, thereby determining the time synchronization service function chain.

[0058] It should be noted that a time synchronization task includes multiple types of time synchronization virtual network function instances, and the time synchronization virtual network function instance corresponding to the time synchronization task can belong to a set of time synchronization virtual network function instances. Collection of Time Synchronization Virtual Network Functionality Examples It is a collection of time synchronization virtual network function instances of different types, including time synchronization path query VNFs and selection of the best target 5G-MEC server node; the collection of time synchronization virtual network function instances. The expression is:

[0059] = (1)

[0060] In equation (1), This represents a Type 1 time synchronization virtual network function instance. This represents a type 2 time synchronization virtual network function instance. Representation type Time synchronization virtual network function example, It is a positive integer.

[0061] Step 140: Based on the time synchronization VNF involved in the time synchronization service function chain, deploy time synchronization services to multiple target nodes and determine the deployment results; the deployment results are used to instruct the target 5G-MEC server node and the target power equipment to transmit time information.

[0062] Among them, multiple target nodes include 5G-MEC server nodes that are not target 5G-MEC server nodes in the 5G-MEC network, converged communication terminals that are not target converged communication terminals in the converged terminal Mesh subnet, and target power equipment.

[0063] Specifically, when the NFV control orchestration subsystem consists of a network controller, a synchronization controller, and a network time synchronization database, and the synchronization controller determines the time synchronization service function chain, the synchronization controller can continue to deploy time synchronization services to multiple target nodes based on the time synchronization VNFs involved in this time synchronization service function chain. This allows the target 5G-MEC server node and the target power equipment to perform time information transmission based on the deployment of the time synchronization VNFs involved in this time synchronization service function chain to multiple target nodes. This information transmission includes time synchronization data packet forwarding and synchronization path timestamp extraction, etc.

[0064] It should be noted that when there are multiple target converged terminals and each target converged communication terminal receives a time synchronization request sent by the corresponding target power equipment, steps 110 to 140 can be repeated until a time synchronization service function chain is determined for each time synchronization request sent by the target converged terminal, time synchronization service is deployed to multiple target nodes based on the time synchronization VNF involved in each time synchronization service function chain, and time information is transmitted between the corresponding target 5G-MEC server node and the corresponding target power equipment based on different deployment results.

[0065] The 5G converged network synchronization timing service deployment method provided by this invention first obtains the time synchronization request sent by the target converged communication terminal, and generates a time synchronization task based on the time synchronization request to determine the time synchronization path between the target converged communication terminal and the target 5G-MEC server node. Then, based on the time synchronization path, it performs VNF orchestration on the time synchronization virtual network function instance corresponding to the time synchronization task to determine the time synchronization service function chain. Finally, based on the time synchronization VNFs involved in the time synchronization service function chain, it deploys timing services to multiple target nodes so as to instruct the target 5G-MEC server node and the target power equipment to transmit time information based on the deployment results. Since the time synchronization request is generated when the target converged communication terminal receives the time synchronization request sent by the target power equipment, the multiple target nodes include the 5G-MEC server nodes that are not the target 5G-MEC server nodes in the 5G-MEC network, the converged communication terminals that are not the target converged communication terminals in the converged terminal Mesh subnet, and the target power equipment. Therefore, not only can the network-side functions and application deployments be pushed down to the edge of the wireless access network of the end user equipment by forming a 5G-MEC network, which is composed of multiple 5G-MEC server nodes, making application deployment more flexible, network capabilities stronger, and service processing closer to the terminal, thus better meeting the application requirements of high bandwidth and low latency in the power system; but also, by forming a lower-layer network composed of multiple converged communication terminals and establishing a converged terminal Mesh network between the power equipment, the lower-layer self-organizing network can receive signals sent by various power wireless communication terminals such as 5G, WiFi, LoRa, and ZigBee, achieving the goal of wide coverage, convergence of multiple wireless communication systems, and flexible service deployment, thereby greatly improving the flexibility and applicability of time synchronization services in the context of a wide-coverage power network.

[0066] It is understandable that step 120, based on the time synchronization task, determines the time synchronization path between the target converged communication terminal and the target 5G-MEC server node. The specific implementation process may include:

[0067] First, based on the time synchronization task, the target 5G-MEC server node is identified from the 5G-MEC network, and a historical synchronization path query request is generated. Then, based on the historical synchronization path query request, a historical time synchronization path matching the time synchronization task is queried from the historical time synchronization path set. Finally, based on the query results, the time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined.

[0068] Specifically, when the synchronization request response module of the synchronization controller of the NFV control and orchestration subsystem generates a time synchronization task, the synchronization controller first determines the target 5G-MEC server node from the 5G-MEC network and generates a historical synchronization path query request. Then, it sends the historical synchronization path query request to the network time synchronization database of the NFV control and orchestration subsystem. The network time synchronization database queries the stored historical time synchronization path set for the historical time synchronization path that matches the time synchronization task and feeds back the query result to the synchronization controller. At this time, the synchronization controller can determine the time synchronization path between the target converged communication terminal and the target 5G-MEC server node based on the query result.

[0069] The 5G converged network synchronization time service deployment method provided by this invention improves the accuracy and reliability of establishing a time synchronization connection between the target converged communication terminal and the target 5G-MEC server node for event synchronization tasks by first determining the target 5G-MEC server node from the 5G-MEC network, then querying the historical time synchronization path that matches the time synchronization task from the historical time synchronization path set, and finally determining the time synchronization path between the target converged communication terminal and the target 5G-MEC server node based on the query results.

[0070] Understandably, based on the query results, determining the time synchronization path between the target converged communication terminal and the target 5G-MEC server node can be achieved through the following specific implementation process:

[0071] Based on successful query results, the historical time synchronization paths that match the time synchronization task and exist in the historical time synchronization path set are determined as the time synchronization path between the target converged communication terminal and the target 5G-MEC server node; or, based on failed query results, the network topology is obtained, a target 5G-MEC server in a 5G-MEC network is allocated to the target converged communication terminal based on the network topology, and the time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined.

[0072] The network topology consists of 5G-MEC server nodes in the 5G-MEC network, converged communication terminals in the converged terminal Mesh subnet, and target power equipment.

[0073] Specifically, the network time synchronization database of the NFV control orchestration subsystem queries the historical time synchronization path set for historical time synchronization paths that match the time synchronization task. If a matching historical time synchronization path is found, the query result is considered successful, and the found historical time synchronization path can be directly determined as the time synchronization path between the target converged communication terminal and the target 5G-MEC server node. Conversely, if no matching historical time synchronization path is found, the query result is considered unsuccessful. In this case, a target 5G-MEC server in the 5G-MEC network can be allocated to the target converged communication terminal based on the network topology, and the time synchronization path between the target converged communication terminal and the target 5G-MEC server node can be further determined.

[0074] The 5G converged network synchronization time service deployment method provided by this invention determines the time synchronization path between the target converged communication terminal and the target 5G-MEC server node by using historical time synchronization paths that match the time synchronization task and exist in the historical time synchronization path set together; or, by determining the time synchronization path between the target converged communication terminal and the target 5G-MEC server node by assigning a target 5G-MEC server to the target converged communication terminal based on the network topology. This improves the flexibility and reliability of establishing a time synchronization connection between the target converged communication terminal and the target 5G-MEC server node.

[0075] It is understandable that, after obtaining the network topology based on the query failure result, allocating a target 5G-MEC server in a 5G-MEC network to the target converged communication terminal based on the network topology, and determining the time synchronization path between the target converged communication terminal and the target 5G-MEC server node, the 5G converged network synchronization time service deployment method provided by the present invention may further include:

[0076] If no matching historical time synchronization path is found in the historical time synchronization path set, the historical time synchronization path set is updated based on the time synchronization path determined this time.

[0077] Specifically, if no historical time synchronization path matching the time synchronization task is found in the historical time synchronization path set, the historical time synchronization path set can be updated by adding the determined time synchronization path to the historical time synchronization path set in order to allocate a target 5G-MEC server in a 5G-MEC network based on the network topology for the target converged communication terminal and determine the time synchronization path between the target converged communication terminal and the target 5G-MEC server node.

[0078] The 5G converged network synchronization time service deployment method provided by this invention addresses the situation where there is no historical time synchronization path in the historical time synchronization path set that matches the time synchronization task. By updating the historical time synchronization path set based on the time synchronization path determined using the network topology in this instance, the richness and completeness of the historical time synchronization path set are improved, providing sufficient basis for quickly and accurately determining the current time synchronization path.

[0079] It is understandable that the specific implementation process of step 140 may include:

[0080] First, acquire multiple virtual network time synchronization functions to perform time synchronization tasks. Then, based on the time synchronization VNFs involved in the time synchronization service function chain, deploy each virtual network time synchronization function to multiple target nodes, and determine the shortest path set connecting the multiple target nodes based on the KSP algorithm; where the shortest path set is a collection of multiple deployment paths. Next, determine the target shortest path from the shortest path set, and deploy time synchronization services to multiple target nodes along the target shortest path, determining the deployment result; where the target shortest path is the optimal deployment path among the multiple deployment paths.

[0081] Specifically, the time synchronization task is denoted as... If so, then this time synchronization task is completed. Requires time synchronization virtual network function instance Multiple unordered time synchronization functions are then arranged in a preset order to form a time synchronization service function chain. Its expression is:

[0082] (2)

[0083] In equation (2), Example of a time synchronization virtual network function The Time synchronization function. A positive integer greater than 1; the preset order here refers to the order of instances of the time synchronization virtual network function. The order in which VNFs are formed during VNF orchestration. Furthermore, the time synchronization VNFs involved in the time synchronization service function chain can specifically be defined as follows: Example of time synchronization virtual network function It has multiple ordered time synchronization functions.

[0084] Based on this, when the time synchronization virtual network function instance It can be deployed on any 5G-MEC server node and any converged communication terminal. Based on the time synchronization VNF involved in the time synchronization service function chain, multiple virtual network time synchronization functions can be deployed to multiple target nodes respectively. In the process of deploying each time synchronization function to multiple target nodes, the target node with the highest priority is selected in sequence, and the KSP algorithm is used to determine the set of shortest paths connecting multiple target nodes with the highest priority. The set of shortest paths contains K shortest paths. Then, the optimal target shortest path is determined from the K shortest paths to facilitate the deployment of time synchronization services to multiple target nodes in the target shortest path.

[0085] It should be noted that, for selecting the target node with the highest priority, we can first preset the physical node priority function and initialize it. Then, we can update the physical node priority function by adding K shortest paths as a new dimension. Finally, when deploying each time synchronization function to multiple target nodes, we can use the updated physical node priority function to select the target node with the highest priority in turn.

[0086] The 5G converged network synchronization time service deployment method provided by this invention improves the time synchronization accuracy of Mesh networking and packet forwarding networks in the context of wide coverage multi-wireless converged networking by deploying the time synchronization functions of multiple virtual networks that perform time synchronization tasks to multiple target nodes, determining the shortest path set connecting multiple target nodes, and deploying time synchronization services to multiple target nodes in the shortest path.

[0087] It is understandable that determining the target shortest path from the set of shortest paths can involve the following specific implementation process:

[0088] First, obtain the resource utilization rate of each target node, the impact coefficient of each shortest path in the shortest path set on multiple target nodes, the link status of the target converged communication terminal in the converged terminal Mesh subnet, and the total latency of the target converged communication terminal initiating a time synchronization request; then, under the constraints of each resource utilization rate, each impact coefficient, link status, and total latency, determine the target shortest path from the shortest path set.

[0089] Specifically, considering the deployment costs of 5G-MEC server nodes and converged communication terminals, the deployment cost of converged communication terminals is lower, thus giving them a higher deployment priority. To reduce the deployment cost of virtual resources, the converged terminal Mesh subnet performs the time synchronization task in the [missing information - likely a specific step or step]. v The virtual network time synchronization function is for VNF In the case of the first v Virtual Network Time Synchronization Function (VNF) Priority should be given to deploying on target nodes that already have the same type of VNF; therefore, to meet as many time synchronization needs as possible, the following definition is provided. Measure the first f The number of terminals connected to the target node during the specified time period is determined, and the number of terminals connected to the target node during the specified time period is determined. f The target node is deployed with the first v Virtual Network Time Synchronization Function (VNF) Resource deployment margin The resource utilization rate for each target node is calculated using the following formula:

[0090] (3)

[0091] In equation (3), Represents the first among multiple target nodes f Available resources for each target node Indicates the deployment of the first v Virtual Network Time Synchronization Function (VNF) Required resources.

[0092] Furthermore, when determining VNF deployment, the impact of the deployment path on link bandwidth in the converged terminal mesh subnet environment should be considered. Also, target nodes with fewer hops in the converged terminal mesh subnet are closer to the converged terminal mesh subnet layer. This means that target nodes closer to the converged terminal mesh subnet will bear more network traffic and experience greater bandwidth pressure. Therefore, a lower VNF deployment priority can be assigned to target nodes closer to the converged terminal mesh subnet to prevent network congestion at these target nodes from affecting the delivery of time synchronization messages. Based on this, the shortest path set can be determined. p The shortest path for the th f The influence coefficient of each target node The calculation formula is as follows:

[0093] (4)

[0094] In equation (4), This indicates the hop count of the target converged communication terminal within the converged terminal's Mesh subnet. Indicates the measurement of the first f The number of terminals connected to each target node in time A priority coefficient representing the number of terminals used. 1.

[0095] In addition, define separately This represents the maximum tolerable latency for a time synchronization request initiated by the target converged communication terminal, provided that the normal operation of the power service is not affected; (Definition) This indicates the virtual network function instance assigned to the time synchronization function. Computational resources; definition This indicates the virtual network function instance assigned to the time synchronization function. Storage resources.

[0096] definition Example of a time synchronization virtual network function Whether it was deployed in f On the target nodes, and satisfying:

[0097] (5)

[0098] In equation (5), f ∈ , Represents the set of physical nodes. This represents the set of physical nodes consisting of 5G-MEC server nodes located in the 5G-MEC network. This represents the set of physical nodes consisting of converged communication terminals located in the converged terminal Mesh subnet.

[0099] definition Whether the virtual link between the target virtual converged communication terminal c and the target 5G-MEC server node is mapped to the physical link, and whether the following relationship is satisfied:

[0100] (6)

[0101] In equation (6), the target virtual converged communication terminal c is the virtual converged communication terminal corresponding to the target converged communication terminal. , This represents a set of virtual nodes. Furthermore, the set of virtual nodes... Multiple virtual nodes in the network include virtual 5G-MEC server nodes corresponding to 5G-MEC server nodes in the 5G-MEC network, and virtual converged communication terminals corresponding to converged communication terminals in the converged terminal Mesh subnet; physical links represent the set of physical nodes. A link between two physical nodes is a virtual link, which is a set of virtual nodes. Links between two virtual nodes; multiple virtual nodes can be deployed on the same physical node, as long as resource constraints are met.

[0102] definition Example of a time synchronization virtual network function Whether it has been run and assigned to the target virtual converged communication terminal c, and whether it satisfies the following relationship:

[0103] (7)

[0104] Based on this, the total latency of the target converged communication terminal initiating a time synchronization request can be determined, including the end-to-end latency of the service function chain path in the time synchronization service function chain. Deployment latency of virtual time synchronization task :

[0105] (8)

[0106] (9)

[0107] In equations (8) and (9), Represents a set of virtual links. Represents a set of physical links. Represents the set of physical nodes The physical link between physical nodes m and n in the middle Represents a set of virtual nodes virtual nodes and Virtual links between them This represents the latency of the link connecting physical nodes m and n. Indicates connection to virtual nodes and The latency of the link between them Example of a time synchronization virtual network function This is a collection of time-synchronized virtual network function instances. ; .

[0108] It should be noted that since the 5G converged network synchronization time VNF deployment algorithm aims to maximize time synchronization service for users, the following constraints can be set:

[0109] (10)

[0110] (11)

[0111] (12)

[0112] In equations (10) to (12), equation (10) indicates that the target converged communication terminal initiates only one time synchronization service request each time; equation (11) indicates that the first... f Each target node can support the deployment of a time synchronization request VNF; Equation (12) shows that each time synchronization virtual network function instance can only be deployed on one target node; Indicates the first f The computing resources of each target node Indicates the first fStorage resources for each target node.

[0113] Based on this, the target shortest path is determined from the shortest path set by combining the resource utilization rate of each target node, the influence coefficient of each shortest path in the shortest path set on multiple target nodes, the link status of the target fusion communication terminal in the fusion terminal Mesh subnet, the total delay of the target fusion communication terminal initiating the time synchronization request, and the constraints of equations (10) to (12). The target shortest path here can not only maximize the time synchronization service users, but also achieve the purpose of reasonable resource allocation.

[0114] The 5G converged network synchronization time service deployment method provided by this invention determines the target shortest path from the shortest path set under the constraints of resource utilization of each target node, the influence coefficient of each shortest path in the shortest path set on multiple target nodes, the link status of the target converged communication terminal in the converged terminal Mesh subnet, and the total latency of the target converged communication terminal initiating a time synchronization request. This achieves the purpose of reasonable resource allocation and provides a reliable guarantee for the optimal deployment of the time synchronization VNF in the future.

[0115] It is understood that, after step 140, the 5G converged network synchronization timing service deployment method provided by the present invention may further include:

[0116] Based on the deployment results, the target converged communication terminal is instructed to change its local time according to the time information provided by the target 5G-MEC server node.

[0117] Specifically, when deploying time synchronization services to multiple target nodes based on the time synchronization VNF involved in the time synchronization service function chain, the target fusion terminal can transmit time information with the target 5G-MEC server node and change its local time according to the time information provided by the target 5G-MEC server node.

[0118] The 5G converged network synchronization time service deployment method provided by the present invention improves the time accuracy of the target converged communication terminal by instructing the target converged communication terminal to change its local time according to the time information provided by the target 5G-MEC server node based on the deployment result.

[0119] Reference Figure 2 The above is a network architecture diagram of the 5G converged network synchronization timing service deployment system provided by the present invention, as shown in the figure. Figure 2 As shown, this 5G converged network synchronization timing service deployment system includes a 5G-MEC network, a converged terminal Mesh subnet, target power equipment and a network function virtualization control and orchestration subsystem, and communication connections between the 5G-MEC network, the converged terminal Mesh subnet, the target power equipment and the network function virtualization control and orchestration subsystem;

[0120] The 5G-MEC network includes target 5G-MEC server nodes capable of receiving precise GPS / BDS timing messages;

[0121] The target power equipment is used to send timing requests to the converged terminal Mesh subnet;

[0122] The converged terminal Mesh subnet includes target converged communication terminals that receive time synchronization requests. When a target converged communication terminal receives a time synchronization request, it generates a time synchronization request.

[0123] The network function virtualization control orchestration subsystem is used to execute the 5G converged network synchronization time service deployment method described in the foregoing embodiments when a time synchronization request is received.

[0124] Specifically, when the number of converged terminal mesh subnets is two or more, it can form Figure 2 The converged terminal mesh network described above, and the 5G-MEC network can be composed of multiple 5G-MEC server nodes, and the number of target power devices can also be multiple. Based on this, when the network function virtualization control orchestration subsystem receives a time synchronization request sent by the target converged communication terminal, it can execute the 5G converged network synchronization time service deployment method described in the foregoing embodiments. Further details are omitted here.

[0125] The 5G converged network synchronization time service deployment system provided by this invention not only constructs the transmission of time synchronization messages as a time synchronization network function through network function virtualization, and realizes the orchestration of time synchronization virtual functions in the 5G-MEC network and converged terminal Mesh network scenario through network controller and synchronization controller, so as to achieve flexible response to the time synchronization requirements of power services; but also prioritizes the deployment nodes of time synchronization VNF, and comprehensively considers the impact of factors such as node resource utilization, Mesh network topology, server deployment cost, and the number of time-connecting devices of converged communication terminals on VNF deployment, so as to achieve the purpose of reasonable allocation of server resources and maximization of time synchronization service users, and also achieve the purpose of flexible response to power service time synchronization requests.

[0126] The effectiveness of this invention is further illustrated below with simulation examples:

[0127] against Figure 2In the network scenario shown, the GPS / BDS precise time source is deployed in the 5G-MEC network, and the time synchronization users (i.e., converged communication terminals) are distributed in the converged terminal Mesh network. Both the 5G-MEC network and the converged terminal Mesh network have computing and storage resources to support VNF ​​deployment. Following the recommendations in the Precision Time Protocol (PTP), the time synchronization period is set to 1 / 128 to 16 seconds; and a maximum of 300 time synchronization requests from users are accepted. For example, Figure 2 The converged terminal mesh network consists of two converged terminal mesh subnets, each of which is composed of four converged communication terminals.

[0128] Based on this, the method of the present invention can yield the following results: Figure 3 and Figure 4 The comparison diagram shown. Figure 3 and Figure 4 The comparisons of the success rate and the number of time synchronization services received between the method of this invention, the end-to-end latency-optimal deployment algorithm, and the cost-optimal deployment algorithm are presented respectively.

[0129] Through analysis Figure 3 and Figure 4 It can be concluded that the cost-optimal deployment algorithm prioritizes deploying VNFs in the converged terminal mesh network. However, this method does not consider the impact of the hop count of converged communication terminals in the converged terminal mesh network on deployment latency, resulting in a significant decrease in deployment success rate as the time synchronization period decreases. When the number of time synchronization requests increases to more than 150, the bandwidth resources of converged communication terminals with fewer hop counts in the converged terminal mesh network are insufficient, resulting in the inability to meet the latency constraints of some time synchronization requests. The method of this invention improves the VNF deployment strategy in the converged terminal mesh network by defining node priorities, and can still maintain the effective deployment of VNFs even when the time synchronization service requests increase.

[0130] The following describes the 5G converged network synchronous timing service deployment device provided by the present invention. The 5G converged network synchronous timing service deployment device described below and the 5G converged network synchronous timing service deployment method described above can be referred to in correspondence with each other.

[0131] Reference Figure 5 This is a schematic diagram of the structure of the 5G converged network synchronization timing service deployment device provided by the present invention, as shown below. Figure 5 As shown, the 5G converged network synchronization timing service deployment device 500 includes:

[0132] The request acquisition module 510 is used to acquire the time synchronization request sent by the target converged communication terminal. The time synchronization request is generated when the target converged communication terminal receives the time synchronization request sent by the target power equipment.

[0133] The path determination module 520 is used to generate a time synchronization task based on a time synchronization request, and determine the time synchronization path between the target converged communication terminal and the target 5G-MEC server node based on the time synchronization task.

[0134] Service determination module 530 is used to perform VNF orchestration on the time synchronization virtual network function instance corresponding to the time synchronization task based on the time synchronization path, and determine the time synchronization service function chain.

[0135] The service deployment module 540 is used to deploy time synchronization services to multiple target nodes based on the time synchronization VNF involved in the time synchronization service function chain and determine the deployment result; the deployment result is used to instruct the target 5G-MEC server node and the target power equipment to transmit time information.

[0136] Among them, multiple target nodes include 5G-MEC server nodes that are not target 5G-MEC server nodes in the 5G-MEC network, converged communication terminals that are not target converged communication terminals in the converged terminal Mesh subnet, and target power equipment.

[0137] Understandably, the path determination module 520 can be used to determine the target 5G-MEC server node from the 5G-MEC network based on the time synchronization task, and generate a historical synchronization path query request; based on the historical synchronization path query request, query the historical time synchronization path that matches the time synchronization task from the historical time synchronization path set; and based on the query results, determine the time synchronization path between the target converged communication terminal and the target 5G-MEC server node.

[0138] Understandably, the path determination module 520 can also be used to determine the historical time synchronization paths that exist in the historical time synchronization path set, based on the successful query results, as the time synchronization path between the target converged communication terminal and the target 5G-MEC server node; or, based on the failed query results, to obtain the network topology, allocate a target 5G-MEC server in the 5G-MEC network to the target converged communication terminal based on the network topology, and determine the time synchronization path between the target converged communication terminal and the target 5G-MEC server node.

[0139] The network topology consists of 5G-MEC server nodes in the 5G-MEC network, converged communication terminals in the converged terminal Mesh subnet, and target power equipment.

[0140] It is understandable that the path determination module 520 can also be used to update the historical time synchronization path set based on the time synchronization path determined this time when no historical time synchronization path matching the time synchronization task is found in the historical time synchronization path set.

[0141] Understandably, the service deployment module 540 can be used to acquire multiple virtual network time synchronization functions for executing time synchronization tasks; based on the time synchronization VNFs involved in the time synchronization service function chain, it deploys each virtual network time synchronization function to multiple target nodes, and determines the shortest path set connecting multiple target nodes based on the KSP algorithm; where the shortest path set is a set of multiple deployment paths; it determines the target shortest path from the shortest path set, and deploys time synchronization services to multiple target nodes in the target shortest path, determining the deployment result; where the target shortest path is the optimal deployment path among multiple deployment paths.

[0142] Understandably, the service deployment module 540 can also be used to obtain the resource utilization rate of each target node, the impact coefficient of each shortest path in the shortest path set on multiple target nodes, the connection status of the target converged communication terminal in the converged terminal Mesh subnet, and the total latency of the target converged communication terminal initiating a time synchronization request; under the constraints of each resource utilization rate, each impact coefficient, connection status, and total latency, the target shortest path is determined from the shortest path set.

[0143] It is understood that the 5G converged network synchronization time service deployment device provided by the present invention may also include a time change module, which is used to instruct the target converged communication terminal to change its local time according to the time information provided by the target 5G-MEC server node based on the deployment result.

[0144] Figure 6 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 6 As shown, the electronic device 600 may include: a processor 610, a communications interface 620, a memory 630, and a communication bus 640, wherein the processor 610, the communications interface 620, and the memory 630 communicate with each other through the communication bus 640. The processor 610 can call logical instructions in the memory 630 to execute a 5G converged network synchronization timing service deployment method, which includes:

[0145] Obtain the time synchronization request sent by the target converged communication terminal. The time synchronization request is generated when the target converged communication terminal receives the time synchronization request sent by the target power equipment.

[0146] Based on the time synchronization request, a time synchronization task is generated, and based on the time synchronization task, the time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined.

[0147] Based on the time synchronization path, VNF orchestration is performed on the time synchronization virtual network function instance corresponding to the time synchronization task to determine the time synchronization service function chain.

[0148] Based on the time synchronization VNF involved in the time synchronization service function chain, time synchronization service is deployed to multiple target nodes, and the deployment result is determined. The deployment result is used to instruct the target 5G-MEC server node and the target power equipment to transmit time information.

[0149] Among them, multiple target nodes include 5G-MEC server nodes that are not target 5G-MEC server nodes in the 5G-MEC network, converged communication terminals that are not target converged communication terminals in the converged terminal Mesh subnet, and target power equipment.

[0150] Furthermore, the logical instructions in the aforementioned memory 630 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0151] On the other hand, the present invention also provides a computer program product, the computer program product comprising a computer program that can be stored on a non-transitory computer-readable storage medium, wherein when the computer program is executed by a processor, the computer is able to execute the 5G converged network synchronization timing service deployment method provided by the above methods, the method comprising:

[0152] Obtain the time synchronization request sent by the target converged communication terminal. The time synchronization request is generated when the target converged communication terminal receives the time synchronization request sent by the target power equipment.

[0153] Based on the time synchronization request, a time synchronization task is generated, and based on the time synchronization task, the time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined.

[0154] Based on the time synchronization path, VNF orchestration is performed on the time synchronization virtual network function instance corresponding to the time synchronization task to determine the time synchronization service function chain.

[0155] Based on the time synchronization VNF involved in the time synchronization service function chain, time synchronization service is deployed to multiple target nodes, and the deployment result is determined. The deployment result is used to instruct the target 5G-MEC server node and the target power equipment to transmit time information.

[0156] Among them, multiple target nodes include 5G-MEC server nodes that are not target 5G-MEC server nodes in the 5G-MEC network, converged communication terminals that are not target converged communication terminals in the converged terminal Mesh subnet, and target power equipment.

[0157] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the 5G converged network synchronization timing service deployment method provided by the methods described above, the method comprising:

[0158] Obtain the time synchronization request sent by the target converged communication terminal. The time synchronization request is generated when the target converged communication terminal receives the time synchronization request sent by the target power equipment.

[0159] Based on the time synchronization request, a time synchronization task is generated, and based on the time synchronization task, the time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined.

[0160] Based on the time synchronization path, VNF orchestration is performed on the time synchronization virtual network function instance corresponding to the time synchronization task to determine the time synchronization service function chain.

[0161] Based on the time synchronization VNF involved in the time synchronization service function chain, time synchronization service is deployed to multiple target nodes, and the deployment result is determined. The deployment result is used to instruct the target 5G-MEC server node and the target power equipment to transmit time information.

[0162] Among them, multiple target nodes include 5G-MEC server nodes that are not target 5G-MEC server nodes in the 5G-MEC network, converged communication terminals that are not target converged communication terminals in the converged terminal Mesh subnet, and target power equipment.

[0163] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0164] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0165] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for deploying synchronization and timing services in a 5G converged network, characterized in that, The method, applied to a network function virtualization control orchestration subsystem, includes: Obtain a time synchronization request sent by the target converged communication terminal, wherein the time synchronization request is generated when the target converged communication terminal receives a time synchronization request sent by the target power equipment; Based on the time synchronization request, a time synchronization task is generated, and based on the time synchronization task, a time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined, including: based on the time synchronization task, determining the target 5G-MEC server node from the 5G-MEC network and generating a historical synchronization path query request; based on the historical synchronization path query request, querying historical time synchronization paths matching the time synchronization task from the historical time synchronization path set; and based on the query results, determining the time synchronization path between the target converged communication terminal and the target 5G-MEC server node; wherein, the time synchronization request carries relevant information, and the time synchronization task is generated based on the relevant information carried by the time synchronization request, the relevant information including the identity code information of the target converged communication terminal, time accuracy requirement information, supported communication methods, and connection information of the converged terminal Mesh subnet where the target converged communication terminal is located; Based on the time synchronization path, VNF orchestration is performed on the time synchronization virtual network function instance corresponding to the time synchronization task to determine the time synchronization service function chain. Based on the time synchronization VNF involved in the time synchronization service function chain, time synchronization service is deployed to multiple target nodes, and the deployment result is determined; the deployment result is used to instruct the target 5G-MEC server node and the target power equipment to transmit time information. The plurality of target nodes include 5G-MEC server nodes in the 5G-MEC network that are not the target 5G-MEC server nodes, converged communication terminals in the converged terminal Mesh subnet that are not the target converged communication terminals, and the target power equipment.

2. The 5G converged network synchronization timing service deployment method according to claim 1, characterized in that, The step of determining the time synchronization path between the target converged communication terminal and the target 5G-MEC server node based on the query results includes: Based on the successful query result, the historical time synchronization path that exists in the historical time synchronization path set is determined as the time synchronization path between the target converged communication terminal and the target 5G-MEC server node. Based on the query failure result, the network topology is obtained, and a target 5G-MEC server in the 5G-MEC network is allocated to the target converged communication terminal based on the network topology. The time synchronization path between the target converged communication terminal and the target 5G-MEC server node is determined. The network topology consists of each 5G-MEC server node in the 5G-MEC network, each converged communication terminal in the converged terminal Mesh subnet, and the target power equipment.

3. The 5G converged network synchronization timing service deployment method according to claim 2, characterized in that, The method further includes: If no historical time synchronization path matching the time synchronization task is found in the historical time synchronization path set, the historical time synchronization path set is updated based on the time synchronization path determined this time.

4. The method for deploying 5G converged network synchronization timing service according to any one of claims 1 to 3, characterized in that, The deployment of time synchronization services to multiple target nodes based on the time synchronization service function chain, and the determination of the deployment results, include: Obtain multiple virtual network time synchronization functions to execute the time synchronization task; Based on the time synchronization VNFs involved in the time synchronization service function chain, each virtual network time synchronization function is deployed to the multiple target nodes, and the shortest path set connecting the multiple target nodes is determined based on the KSP algorithm; wherein, the shortest path set is a set of multiple deployment paths; The target shortest path is determined from the set of shortest paths, and time synchronization services are deployed for the multiple target nodes in the target shortest path to determine the deployment result; wherein the target shortest path is the optimal deployment path among the multiple deployment paths.

5. The 5G converged network synchronization timing service deployment method according to claim 4, characterized in that, Determining the target shortest path from the set of shortest paths includes: The resource utilization rate of each target node, the influence coefficient of each shortest path in the shortest path set on the multiple target nodes, the link status of the target converged communication terminal in the converged terminal Mesh subnet, and the total latency of the target converged communication terminal initiating the time synchronization request are obtained. Under the constraints of resource utilization, influence coefficients, link status, and total delay, the target shortest path is determined from the set of shortest paths.

6. The method for deploying 5G converged network synchronization timing service according to any one of claims 1 to 3, characterized in that, The method further includes: Based on the deployment results, the target converged communication terminal is instructed to change its local time according to the time information provided by the target 5G-MEC server node.

7. A 5G converged network synchronization timing service deployment system, characterized in that, It includes a 5G-MEC network, a converged terminal Mesh subnet, target power equipment, and a network function virtualization control and orchestration subsystem, with communication connections between the 5G-MEC network, the converged terminal Mesh subnet, the target power equipment, and the network function virtualization control and orchestration subsystem; The 5G-MEC network includes a target 5G-MEC server node capable of receiving precise GPS / BDS timing messages. The target power equipment is used to send a time synchronization request to the converged terminal Mesh subnet; The converged terminal Mesh subnet includes a target converged communication terminal that receives the time synchronization request. When the target converged communication terminal receives the time synchronization request, it generates a time synchronization request. The network function virtualization control orchestration subsystem is used to execute the 5G converged network synchronization time service deployment method according to any one of claims 1 to 6 when the time synchronization request is received.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the 5G converged network synchronization timing service deployment method as described in any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the 5G converged network synchronization timing service deployment method as described in any one of claims 1 to 6.

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