Network topology construction method and device based on digital twin technology

Abstract

The embodiment of the present application provides a network topology construction method and device based on digital twin technology, which relates to the field of network communication. The method includes: obtaining the business needs of the physical network; obtaining the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determining the topological characteristic attributes of each network element twin according to the topological logical relationship; constructing network topology rules according to the topological logical relationship and topological characteristic attributes; determining the topological strategy based on business needs and network topology rules; constructing a digital twin network according to the topological strategy; when the topology of the digital twin network is verified to be reasonable based on business needs, the topological strategy is executed in the physical network. The embodiment of the present application is used to solve the problem that the existing digital twin cannot accurately describe the state of the end-to-end business of the physical network, and realize that the digital twin network can accurately restore the real state of the physical network.

Description

Technical Field

[0001] The present application relates to the field of network communication technology. Specifically, the present application relates to a network topology construction method and device based on digital twin technology. Background Art

[0002] As 5G technology accelerates the pace of empowering vertical industries, the development of the industry has entered a new track. Communication networks based on digital twin technology can provide significant cost reduction and efficiency improvement and dynamic visualization and precise management capabilities throughout the network life cycle. The network truly enables end-to-end business services, which is the result of the joint collaboration of various network elements through reasonable topology.

[0003] At present, the construction of digital twins mainly focuses on the mapping of static attributes (such as static parameters, geometric models, etc.) and functional attributes of the entity itself, and is generally only applicable to the dynamic mapping of a single twin. In view of the unique topological characteristics of communication networks, the existing digital twin definition can only achieve dynamic visualization of a single entity. No definition of related twins has been seen yet, and the status of end-to-end network services cannot be accurately described. Summary of the invention

[0004] The embodiments of the present application provide a method and device for constructing a network topology based on digital twin technology, so as to solve the problem that the existing digital twin cannot accurately describe the status of the end-to-end services of the physical network, and realize that the digital twin network can accurately restore the real status of the physical network.

[0005] According to one aspect of an embodiment of the present application, a method for constructing a network topology based on digital twin technology is provided, the method comprising:

[0006] Obtain business requirements for the physical network;

[0007] Acquire the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determine the topological characteristic attributes of each of the network element twins according to the topological logical relationship between the network element twins;

[0008] Constructing network topology rules according to the topological logical relationship and topological characteristic attributes between the network element twins;

[0009] Determine a topology strategy based on the business requirements and the network topology rules;

[0010] According to the topology strategy, a digital twin network is constructed;

[0011] When the topology of the digital twin network is verified to be reasonable based on the business requirements, the topology strategy is executed in the physical network.

[0012] In a possible implementation, constructing a network topology rule according to the topological logical relationship and topological characteristic attributes between the network element twins includes:

[0013] Obtaining current operation data, historical operation data and topology influencing factors of the physical network;

[0014] Constructing network topology rules based on the current operation data, the historical operation data, the topology influencing factors, the topological logical relationship between the network element twins, and the topological characteristic attributes;

[0015] Among them, the topological logical relationship between the network element twins includes at least one of a many-to-many association relationship, a one-to-many association relationship and a one-to-one association relationship between the network element twins, and the topological characteristic attributes include the location information, network element identification and capability association information of the network element twins.

[0016] In a possible implementation, it also includes:

[0017] When at least one network reconstruction condition is triggered, the network reconstruction condition is analyzed to obtain the current business demand, so as to redefine the topology strategy based on the current business demand; wherein the network reconstruction condition includes the network element failure condition corresponding to the current physical network, the business demand change condition and the reconstruction condition of the physical network.

[0018] In a possible implementation, constructing a digital twin network according to the topology strategy includes:

[0019] When the digital twin network does not meet the business needs and it is verified that the topology of the digital twin network is unreasonable, the first network topology data that does not meet the business needs is extracted based on the digital twin network, and the topology strategy is adjusted according to the first network topology data, so that the digital twin network is reconstructed according to the adjusted topology strategy until the reconstructed digital twin network meets the business needs.

[0020] In a possible implementation, when the topology of the digital twin network is verified to be reasonable based on the business requirements, executing the topology strategy in the physical network includes:

[0021] When the digital twin network meets the business requirements, it is verified that the topology of the digital twin network is reasonable, and when the topology strategy meets the preset physical network execution conditions, the topology strategy is executed in the physical network.

[0022] In a possible implementation, when the topology of the digital twin network is verified to be reasonable based on the business requirements, executing the topology strategy in the physical network includes:

[0023] When the digital twin network meets the business requirements, but the topology strategy does not meet the physical network execution conditions, extracting second network topology data that does not meet the physical network execution conditions based on the digital twin network, and optimizing the topology strategy based on the second network topology data to generate a topology optimization strategy;

[0024] Reconstruct the corresponding digital twin network according to the topology optimization strategy until the reconstructed digital twin network meets the business requirements and the topology optimization strategy meets the physical network execution conditions, so as to execute the topology optimization strategy in the physical network.

[0025] According to another aspect of an embodiment of the present application, a network topology construction device based on digital twin technology is provided, the device comprising:

[0026] Business requirements acquisition module, used to obtain business requirements of the physical network;

[0027] A topology attribute definition module, used to obtain the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determine the topological characteristic attributes of each network element twin according to the topological logical relationship between the network element twins;

[0028] A network topology rule construction module, used to construct network topology rules according to the topological logical relationship and topological characteristic attributes between the network element twins;

[0029] A topology strategy determination module, used to determine a topology strategy based on the business requirements and the network topology rules;

[0030] A digital twin network construction module, used to construct a digital twin network according to the topology strategy;

[0031] The physical network operation module is used to execute the topology strategy in the physical network when the topology of the digital twin network is verified to be reasonable based on the business requirements.

[0032] According to one aspect of an embodiment of the present application, an electronic device is provided, which includes: a memory, a processor, and a computer program stored in the memory, and the processor executes the computer program to implement the steps of the network topology construction method based on digital twin technology described in the above embodiment.

[0033] According to another aspect of an embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the network topology construction method based on digital twin technology described in the above embodiment are implemented.

[0034] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, which, when executed by a processor, implements the steps of the network topology construction method based on digital twin technology described in the above embodiments.

[0035] The beneficial effects of the technical solution provided by the embodiment of the present application are:

[0036] By obtaining the business needs of the physical network, the topological logical relationship between the network element twins corresponding to each network node in the physical network is obtained, and the topological characteristic attributes of each network element twin are determined according to the topological logical relationship between the network element twins. According to the topological logical relationship and topological characteristic attributes between the network element twins, network topology rules are constructed, and the topological strategy is determined based on the business needs and the network topology rules. According to the topological strategy, a digital twin network is constructed. When the topology of the digital twin network is verified to be reasonable based on the business needs, the topological strategy is executed in the physical network. In this way, the digital twin network is constructed according to the topological logical relationship and business needs of the network nodes in the physical network, and the analog signals between the network element twins are connected, so that the coordination of the network element twins is realized, and the data association between the digital twin network and the physical network is realized, and data sharing is realized, thereby solving the problem that the existing digital twins cannot accurately describe the status of the end-to-end business of the physical network, and the digital twin network can accurately restore the real state of the physical network, and can realize the real-time monitoring and dynamic tracking of the digital twin network to the physical network to execute business needs, thereby improving the stability of the physical network. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in describing the embodiments of the present application are briefly introduced below.

[0038] Figure 1 A schematic diagram of the mobile communication system architecture provided in an embodiment of the present application;

[0039] Figure 2 A flowchart of a network topology construction method based on digital twin technology provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of a many-to-many association relationship between network element twins provided for an exemplary embodiment of the present application;

[0041] Figure 4 A schematic diagram of a one-to-many association relationship between network element twins provided for an exemplary embodiment of the present application;

[0042] Figure 5 A schematic diagram of a one-to-one association relationship between network element twins provided for an exemplary embodiment of the present application;

[0043] Figure 6 A schematic diagram of a specific process of a network topology construction method based on digital twin technology provided in an embodiment of the present application;

[0044] Figure 7 A schematic diagram of a situation where there is incomplete signal coverage in a location tracking area provided by an exemplary embodiment of the present application;

[0045] Figure 8 A schematic diagram of a situation in which a location tracking area is completely covered with base stations and there is no overlapping coverage provided by an exemplary embodiment of the present application;

[0046] Fig. 9 A schematic diagram of a situation where base stations are basically covered and overlapped in a location tracking area provided by another exemplary embodiment of the present application;

[0047] Fig.10 A schematic diagram of the structure of a network topology construction device based on digital twin technology provided in an embodiment of the present application;

[0048] Fig.11 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] The embodiments of the present application are described below in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions for explaining the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions of the embodiments of the present application.

[0050] It will be understood by those skilled in the art that, unless specifically stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the terms "including" and "comprising" used in the embodiments of the present application refer to that the corresponding features can be implemented as the presented features, information, data, steps, operations, elements and / or components, but do not exclude the implementation as other features, information, data, steps, operations, elements, components and / or combinations thereof supported by the technical field. It should be understood that when we say that an element is "connected" or "coupled" to another element, the one element may be directly connected or coupled to the other element, or it may refer to that the one element and the other element establish a connection relationship through an intermediate element. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein indicates at least one of the items defined by the term, for example, "A and / or B" may be implemented as "A", or as "B", or as "A and B".

[0051] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0052] Figure 1 A schematic diagram of the mobile communication system architecture provided in an embodiment of the present application. The mobile communication system 1 includes a user terminal 101, a base station 102, a bearer network 103, a core network 104 and a control device 105, but is not limited thereto. Among them, the user terminal 101 is connected to the base station 102, and the base station 102 provides wireless coverage for the user terminal 101 to realize wireless signal transmission between the communication network and the user terminal 101. The core network 104 plays an operational support role and is responsible for processing the mobility management, session management and service management of the user terminal 101. It is connected between the base station 102 and the network. The bearer network 103 is used for data transmission. It is located between the base station 102 and the core network 104 and is a basic network that provides network connection for the base station 102 and the core network 104. The control device 105 is connected to the user terminal 101, the base station 102 and the core network 104 respectively. The connection relationship between the devices is not limited thereto, and the present application does not limit this. The control device 105 is used to receive data transmitted by the user terminal 101, the base station 102 and the core network 104, realize functions such as monitoring, processing and storage of the data, and can issue corresponding signal instructions to control related equipment, which effectively coordinates the network resources of the mobile communication system and improves network performance and flexibility.

[0053] The user terminal 101 may be a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart wearable device, etc., which is not limited in the present embodiment. Regarding the hardware structure, the user terminal includes a display screen, a memory, a processor and an input device, but is not limited thereto.

[0054] The control device 105 can be an electronic device such as a wireless resource management server or a coordination controller. In the present application, the control device 105 performs the following steps based on the network topology construction method of the digital twin technology: obtaining the business needs of the physical network, obtaining the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determining the topological characteristic attributes of each network element twin according to the topological logical relationship between the network element twins, constructing network topology rules according to the topological logical relationship and topological characteristic attributes between the network element twins, determining the topological strategy based on the business needs and the network topology rules, and constructing a digital twin network according to the topological strategy. When the topology of the digital twin network is verified to be reasonable based on the business needs, the topological strategy is executed in the physical network, so that the digital twin network can accurately restore the real state of the mobile communication system, and can realize the real-time monitoring and dynamic tracking of the mobile communication system by the digital twin network.

[0055] See also Figure 2 A schematic diagram of a flow chart of a network topology construction method based on digital twin technology provided in an embodiment of the present application. Figure 1 Taking the control device 105 as an example, the method includes steps S201 to S206.

[0056] S201. Obtain business requirements of the physical network.

[0057] In this application, the business requirements of the physical network are decomposed and expressed in a network language that can be implemented by the network. The business requirements include parameter information such as network performance, capacity, coverage, signal strength, such as network energy saving requirements and network signal coverage requirements.

[0058] S202: Obtain a topological logical relationship between network element twins corresponding to each network node in the physical network, and determine a topological characteristic attribute of each network element twin according to the topological logical relationship between the network element twins.

[0059] This application obtains multiple network element entities in a mobile communication network, maps the static attributes (such as static parameters, geometric models, etc.) and kinetic attributes of all network element entities, and obtains multiple network element twins for displaying the dynamic mapping of network element entities, realizing the unified and standardized development of network element twin models and reducing development costs. In a complex mobile communication network, there are various types of topological logical relationships between network elements, such as physical relationships, transmission relationships, various business relationships, etc., thereby determining the topological logical relationships between network element twins.

[0060] In some embodiments, the obtaining of the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determining the topological characteristic attributes of each of the network element twins according to the topological logical relationship between the network element twins, includes:

[0061] Sort out the topological logical relationship between the network elements corresponding to each network node;

[0062] Analyzing the topological logical relationship between the network elements to determine the topological characteristic attributes of the network elements of the same type;

[0063] According to the topological logical relationship between the network elements and the topological characteristic attributes, the network element twins corresponding to the network elements are constructed, and the topological logical relationship between the network element twins and the topological characteristic attributes of the network element twins are obtained.

[0064] In this embodiment, the topological logical relationship between the network elements corresponding to each network node is sorted out, so that based on the topological logical relationship of the network element, the network elements of the same type are analyzed to determine the topological characteristic attributes of each type of network element, which are used as an indication of the topological characteristic attributes of the network element twins of the same type. Therefore, by determining the unified topological characteristic attributes of each type of network element, it is convenient to quickly construct the network element twins of the same type of network elements. Similarly, the topological logical relationship between network elements is used to indicate the construction of the topological logical relationship of the network element twins corresponding to each network element, and each network element twin is constructed accordingly.

[0065] S203: Construct network topology rules according to the topological logical relationship and topological characteristic attributes between the network element twins.

[0066] In some embodiments, constructing a network topology rule according to the topological logical relationship and topological characteristic attributes between the network element twins includes:

[0067] Obtaining current operation data, historical operation data and topology influencing factors of the physical network;

[0068] Constructing network topology rules based on the current operation data, the historical operation data, the topology influencing factors, the topological logical relationship between the network element twins, and the topological characteristic attributes;

[0069] Among them, the topological logical relationship between the network element twins includes at least one of a many-to-many association relationship, a one-to-many association relationship and a one-to-one association relationship between the network element twins, and the topological characteristic attributes include the location information, network element identification and capability association information of the network element twins.

[0070] It should be noted that, in an exemplary embodiment, see Figure 3A schematic diagram of a many-to-many association relationship between network element twins provided by an exemplary embodiment of the present application, Figure 3 The undirected many-to-many connection between network element twins is given in the text, specifically, the many-to-many undirected topological relationship between multiple core networks. For example, for data transmission at the core network level, when the core network receives signaling data fed back from the base station and determines that the complete signaling transmission requires the participation of other core networks and ultimately realizes end-to-end services through the base stations under its jurisdiction, it needs to find the data ownership and then establish a connection.

[0071] In an example embodiment, see Figure 4 A schematic diagram of a one-to-many association relationship between network element twins provided by an exemplary embodiment of the present application, Figure 4 A one-to-many relationship between network nodes is given in the text, specifically a one-to-many jurisdiction relationship between a core network and multiple base stations. For example, the information of a newly built base station will be entered into the core network before the service is connected. There is a definite one-to-many relationship between the core network and the base station. The core network will establish connections with multiple base stations as a communication hub to provide support for communication services between base stations. Furthermore, in the process of building a digital twin network, a graphic database is required to store the topological feature attributes related to the network element twin, such as the index of the base station, spatiotemporal geographic information, etc., and combine CIM (city information model), TA (location tracking area) and other related attributes to present the topology of the base stations under the jurisdiction of the core network in the digital domain.

[0072] In another exemplary embodiment, see Figure 5 A schematic diagram of a one-to-one association relationship between network element twins provided for an exemplary embodiment of the present application, Figure 5 A one-to-one affiliation between network element twins is given. As a node in a mobile communication network, a base station is composed of machine room equipment, baseband equipment, cells, antennas, and towers. The base station twin is actually composed of a machine room equipment twin, a baseband equipment twin, a cell twin, an antenna twin, and a tower twin. For a single base station twin, the network element twin corresponding to the base station ancillary equipment listed above has a unique affiliation with the base station twin. Since the inherent attributes of the relevant ancillary equipment have established a unique affiliation with the base station at the initial stage of base station construction, the internal association relationship existing in a certain node can be defined as an inherited affiliation, which is conducive to the rapid digital positioning when tracing the source of the fault.

[0073] In the present application, according to the topological logical relationship between network element twins, topological characteristic attributes are defined for the network element twins corresponding to each network node, so that the network topology can be quickly mapped and the association of each network node can be realized through the topological characteristic attributes defined by each network element twin in the network. Among them, taking the base station twin as an example, the location information, network element identification and capability association information of the network element twin are described, but not limited to this. In addition, a graphic database is used to store and manage the topological logical relationship between each network element twin and the topological characteristic attributes of each network element twin.

[0074] S204: Determine a topology strategy based on the service requirements and the network topology rules.

[0075] The business requirements are matched with the network topology rules to obtain a solution for the business requirements, and the corresponding topology strategy is obtained through calculation.

[0076] S204: Construct a digital twin network according to the topology strategy.

[0077] S205. When it is verified that the topology of the digital twin network is reasonable based on the business requirements, the topology strategy is executed in the physical network.

[0078] Specifically, this embodiment uses AI (Artificial Intelligence), big data and other technologies to analyze and calculate business needs, and combines the highly realistic network element twins corresponding to each network node, the current network operation data, historical operation data, expert experience and topology influencing factors (such as city information models) to construct network topology rules, and obtains the topology strategy through calculation. Among them, the topology strategy is used to indicate the network topology relationship, operation status and configuration data of each network node in the digital twin network. The network topology relationship includes the link relationship between each network node, which makes it possible to combine the topological logical relationship and topological characteristic attributes of each network element twin, and arrange the topology strategy in the digital domain to construct a digital twin network. Furthermore, when it is determined that the constructed digital twin network meets the business needs, the topology of the digital twin network is considered reasonable, and the topology strategy is executed in the physical network, so that the physical network corresponding to the digital twin network is obtained, and the analog signal between the network nodes of the digital twin network and the physical network is connected, and the real-time data sharing between the digital twin network and the physical network is realized, and the link relationship between each network node and the operating status of each network node can be visually and dynamically displayed, so as to realize the real-time monitoring and dynamic tracking of the business needs of the physical network through the digital twin network. More specifically, the logical association information, functional association information, performance association information and business association information between the network element twins are visualized, thereby realizing the coordination of each network element twin.

[0079] The embodiment of the present application provides a network topology construction method based on digital twin technology, which obtains the business needs of the physical network, obtains the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determines the topological characteristic attributes of each network element twin according to the topological logical relationship between the network element twins, constructs network topology rules according to the topological logical relationship and topological characteristic attributes between the network element twins, determines the topological strategy based on the business needs and the network topology rules, and constructs a digital twin network according to the topological strategy. When the topology of the digital twin network is verified to be reasonable based on the business needs, When the topology strategy is executed in the physical network, the digital twin network is constructed according to the topological logical relationship and business needs of the network nodes in the physical network, and the analog signals between the network element twins are connected, so as to realize the coordination of the network element twins, and realize the data association between the digital twin network and the physical network, and realize data sharing, thereby solving the problem that the existing digital twins cannot accurately describe the status of the end-to-end business of the physical network, and realizing that the digital twin network can accurately restore the real status of the physical network, and can realize the real-time monitoring and dynamic tracking of the digital twin network to the physical network to execute business needs, thereby improving the stability of the physical network.

[0080] In some embodiments, see Figure 6 A specific flow chart of a network topology construction method based on digital twin technology provided in an embodiment of the present application, wherein when the topology of the digital twin network is verified to be reasonable based on the business requirements, the topology strategy is executed in the physical network, including:

[0081] When the digital twin network meets the business requirements, it is verified that the topology of the digital twin network is reasonable, and when the topology strategy meets the preset physical network execution conditions, the topology strategy is executed in the physical network.

[0082] In this application, the topological rationality of the digital twin network is verified by judging whether the constructed digital twin network meets the business requirements. When the digital twin network meets the business requirements, it is verified that the topology of the digital twin network is reasonable, and further judges whether the corresponding topological strategy meets the preset physical network execution conditions, that is, whether the topological strategy is the best topological strategy to be executed in the physical network. It can also be understood as determining whether it is necessary to further refine the topological strategy to achieve executability in the physical network, or to improve the execution effect of the topological strategy.

[0083] In this embodiment, when it is determined that the topology strategy meets the execution conditions of the physical network, it is considered that the current topology strategy does not need further optimization, that is, the topology strategy is the optimal topology strategy to be executed in the physical network, so that the topology construction of the physical network is executed based on the topology strategy, and real-time monitoring and control of the physical network are realized through the digital twin network.

[0084] On the basis of the above embodiments, in some embodiments, when the topology of the digital twin network is verified to be reasonable based on the business requirements, the topology strategy is executed in the physical network, including:

[0085] When the digital twin network meets the business requirements, but the topology strategy does not meet the physical network execution conditions, extracting second network topology data that does not meet the physical network execution conditions based on the digital twin network, and optimizing the topology strategy based on the second network topology data to generate a topology optimization strategy;

[0086] Reconstruct the corresponding digital twin network according to the topology optimization strategy until the reconstructed digital twin network meets the business requirements and the topology optimization strategy meets the physical network execution conditions, so as to execute the topology optimization strategy in the physical network.

[0087] In this embodiment, when it is determined that the topology strategy does not meet the execution conditions of the physical network, it is considered that the current topology strategy needs to be further optimized and adjusted to make it executable in the physical network. For example, in the actual network construction process, there are often some factors that cannot be expressed in network language or on-site mutation factors, such as high-voltage wires or optical cables above or underground where the base station is placed. These factors will force the need to further optimize and adjust the network topology relationship and / or configuration information of the relevant network nodes in the current digital twin network, so as to form the best topology strategy (i.e., topology optimization strategy) that meets business needs and is executable in the physical domain. Among them, the topology strategy is optimized and adjusted based on the network topology data in the digital twin network that does not meet the execution conditions of the physical network, and the placement of base stations in the digital twin network is adjusted. At the same time, during the fine-tuning of the base station position, the digital twin network can present the changes in network topology relationships, operation data, etc. in real time until a topology optimization strategy that meets business needs and can be executed in the physical domain is formed. Then, based on the topology optimization strategy, the digital twin network is re-arranged to execute the topology construction of the physical network based on the topology optimization strategy, and to realize real-time monitoring and control of the physical network through the reconstructed digital twin network.

[0088] Therefore, the embodiment of the present application verifies the topological rationality of the digital twin network and determines whether it is necessary to further optimize and adjust the topological strategy and the digital twin network to form a topological strategy that meets business needs and can be executed in the physical domain, thereby achieving the executability of the topological strategy in the physical network, improving the execution effect of the topological strategy, and improving the accuracy of the mapping of the digital twin network to the physical network, thereby facilitating comprehensive monitoring and operation and maintenance of the physical network.

[0089] In some embodiments, Figure 6 As shown, the digital twin network is constructed according to the topology strategy, including:

[0090] When the digital twin network does not meet the business needs and it is verified that the topology of the digital twin network is unreasonable, the first network topology data that does not meet the business needs is extracted based on the digital twin network, and the topology strategy is adjusted according to the first network topology data, so that the digital twin network is reconstructed according to the adjusted topology strategy until the reconstructed digital twin network meets the business needs.

[0091] In this embodiment, when the digital twin network does not meet the business requirements, it is verified that the topology of the digital twin network is unreasonable, and the network topology data that does not meet the business requirements is extracted, that is, the substandard network topology data in the digital twin network is fed back, and the network topology data is re-analyzed and calculated to obtain the topology adjustment strategy to adjust the previous topology strategy. The corresponding digital twin network is constructed based on the topology adjustment strategy, and it is re-judged whether the currently constructed digital twin network meets the business requirements until the business requirements are met. Further, the corresponding operation steps when the digital twin network meets the business requirements are executed, so as to form the best topology strategy that meets the business requirements and can be executed in the physical domain. Therefore, this embodiment makes the topology of the reconstructed digital twin network reasonable by adjusting the strategy of the current digital twin network, thereby improving the applicability of the digital twin network. Moreover, a topology strategy that can be executed in the physical network is further formed, which improves the accuracy of the mapping of the digital twin network to the physical network, and accurately constructs the physical network corresponding to the digital twin network, so as to realize the comprehensive monitoring and operation and maintenance of the physical network through the digital twin network, thereby improving the stability of the mobile communication network.

[0092] Exemplarily, taking the business requirement of complete coverage in the location tracking area and no specific requirements for network capacity as an example, the above business requirements are analyzed and converted into a language that can be implemented by the network, such as using GIS data to express the coverage range, clarifying specific minimum capacity requirements, signal strength limits, etc. Determine the topological logical relationship between each network element twin, and define topological characteristic attributes for each network element twin based on the topological logical relationship, and store the topological characteristic attributes and topological logical relationship in a graphic database. Further, use AI technology, big data technology, etc., combine business needs, current operating data, historical operating data, CIM information in the location tracking area, and highly realistic network element twin capabilities to deeply analyze and calculate the topological strategy. Furthermore, based on the calculated topological strategy, the topological logical relationship and topological characteristic attributes of each network element twin are combined to construct a digital twin network. The relationship between the core network, base station and location tracking area is used to verify the topological rationality of the digital twin network in combination with business needs. When it is determined that the digital twin network meets the above-mentioned topological rationality, the topological strategy is executed in the physical network to realize the connection of analog signals between the digital twin network and the physical network, and to monitor and control the physical network through the digital twin network.

[0093] In one embodiment, see Figure 7 A schematic diagram of a situation where there is incomplete signal coverage in the location tracking area provided for an exemplary embodiment of the present application. Since there is incomplete signal coverage in the location tracking area and the above-mentioned business requirements are not met, the topology of the digital twin network is unreasonable. Therefore, it is necessary to adjust the topological layout of the base stations in the digital twin network, re-analyze and output whether it is necessary to add base stations or adjust the configuration parameters to achieve complete coverage (i.e., topology adjustment strategy), and re-verify the signal coverage of the reconstructed digital twin network until the above-mentioned business requirements are met, and then optimize and adjust the topology adjustment strategy.

[0094] In one embodiment, see Figure 8 A schematic diagram of a situation where the location tracking area is fully covered by base stations and there is no overlapping coverage provided for an exemplary embodiment of the present application. The location tracking area is fully covered by signals, and there is no overlap in the base station coverage area. Based on the above business requirements (complete coverage in the location tracking area, no specific location in the area has capacity requirements), it is judged that the current digital twin network topology is reasonable, and it is determined whether the current topology strategy needs to be further refined to achieve executability in the physical network.

[0095] In another embodiment, see Fig. 9A schematic diagram of a situation where the location tracking area is basically covered by base stations and there is overlapping coverage provided for another exemplary embodiment of the present application. The location tracking area is basically fully covered, but there is an overlap in the base station coverage in some areas, while some areas are just covered normally (no overlap). The business needs are further specified. For example, due to the high density of people in the overlapping areas, there are certain requirements for capacity, such as stadiums or large entertainment venues, while in the non-overlapping areas, the main focus is on complete signal coverage, and there are no specific requirements for capacity. Therefore, the current digital twin network meets the above business needs, judges that the current digital twin network topology is reasonable, and determines whether it is necessary to further refine the current topology strategy to achieve executability in the physical network.

[0096] In some embodiments, Figure 6 As shown, the method also includes:

[0097] When at least one network reconstruction condition is triggered, the network reconstruction condition is analyzed to obtain the current business demand, so as to redefine the topology strategy based on the current business demand; wherein the network reconstruction condition includes the network element failure condition corresponding to the current physical network, the business demand change condition and the reconstruction condition of the physical network.

[0098] In this embodiment, when a network node fails (corresponding to a network element failure condition), a business demand changes (corresponding to a business demand change condition), a network reconstruction condition (such as a physical network reconstruction condition), and the current digital twin network discovers a better topology solution through self-optimization capabilities during the actual data collection process, at least one of the following situations occurs, then at least one network reconstruction condition is considered to be triggered, the business demand of the current physical network is obtained in real time, and the topology strategy is recalculated based on the current business demand, that is, the topology change strategy is output. The corresponding digital twin network is constructed based on the topology change strategy, and the topological rationality of the current digital twin network is verified based on the current business demand, so as to form an optimal topology strategy that meets the business demand and can be executed in the physical domain, so that the topology construction of the physical network is executed based on the optimal topology strategy. Therefore, this embodiment improves the flexibility and operability of the topology strategy in the application process by timely changing the topology strategy.

[0099] Exemplarily, taking the change in business demand as an example, when the business demand change condition is triggered, new business demand is determined, such as new network energy saving demand and network signal coverage demand. The topological logical relationship between each network element twin is determined, and based on the topological logical relationship, the topological characteristic attributes are defined for each network element twin, and the topological characteristic attributes and topological logical relationship are stored in a graphic database. Furthermore, using AI technology, big data technology, etc., combined with the current operation data, historical operation data, CIM information in the location tracking area and the high-fidelity network element twin capabilities, the network topology rules are calculated through in-depth analysis, and based on the above business needs (network energy saving requirements, network signal coverage requirements) and the network topology rules, the topology change strategy is determined. Furthermore, based on the above topology change strategy, the digital twin network is reconstructed. Furthermore, the rationality of the topology of the reconstructed digital twin network is verified in combination with the above business needs, such as shutting down the base station, removing the base station coverage capability of the node, and adjusting the configuration parameters of other base stations to achieve signal coverage in the area where the base station is shut down. At the same time, the effects before and after energy saving are compared to verify that the business needs are met, and then the topology change strategy is further refined and verified to determine the best execution plan. According to the best execution plan, the physical network topology relationship is adjusted, and the operating status of each network node (such as the equipment operating load) is monitored in real time. Based on the network business operation status, the operating status of each network node is dynamically controlled to ensure the smooth operation of the network under this topology relationship. At the same time, based on system self-learning and real-time network operation data, a more reasonable topology change plan can be found, and the above steps can be repeated to achieve closed-loop lifecycle management of network topology changes.

[0100] See also Fig.10 , is a schematic diagram of the structure of a network topology construction device based on digital twin technology provided in an embodiment of the present application. The network topology construction device 300 based on digital twin technology includes:

[0101] A service requirement acquisition module 301 is used to acquire service requirements of a physical network;

[0102] A topology attribute definition module 302 is used to obtain the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determine the topological characteristic attributes of each network element twin according to the topological logical relationship between the network element twins;

[0103] A network topology rule construction module 303 is used to construct a network topology rule according to the topological logical relationship and topological characteristic attributes between the network element twins;

[0104] A topology strategy determination module 304, configured to determine a topology strategy based on the service requirements and the network topology rules;

[0105] A digital twin network construction module 305 is used to construct a digital twin network according to the topology strategy;

[0106] The physical network operation module 306 is used to execute the topology strategy in the physical network when the topology of the digital twin network is verified to be reasonable based on the business requirements.

[0107] In some embodiments, the network topology rule construction module 303 includes:

[0108] A network data acquisition unit, used to acquire current operation data, historical operation data and topology influencing factors of the physical network;

[0109] A network topology rule creation unit, configured to construct a network topology rule based on the current operation data, the historical operation data, the topology influencing factors, the topological logical relationship between the network element twins, and the topological characteristic attributes;

[0110] Among them, the topological logical relationship between the network element twins includes at least one of a many-to-many association relationship, a one-to-many association relationship and a one-to-one association relationship between the network element twins, and the topological characteristic attributes include the location information, network element identification and capability association information of the network element twins.

[0111] In some embodiments, the apparatus 300 further includes:

[0112] A policy change module is used to parse the network reconstruction condition when at least one network reconstruction condition is triggered to obtain the current business demand, so as to redefine the topology strategy based on the current business demand; wherein the network reconstruction condition includes the network element failure condition corresponding to the current physical network, the business demand change condition and the reconstruction condition of the physical network.

[0113] In some embodiments, the digital twin network construction module 305 includes:

[0114] A policy adjustment unit is used to verify that the topology of the digital twin network is unreasonable when the digital twin network does not meet the business needs, extract the first network topology data that does not meet the business needs based on the digital twin network, and adjust the topology policy according to the first network topology data, so that the digital twin network is reconstructed according to the adjusted topology policy until the reconstructed digital twin network meets the business needs.

[0115] In some embodiments, the physical network operation module 306 includes:

[0116] The physical network topology construction unit is used to verify that the topology of the digital twin network is reasonable when the digital twin network meets the business requirements, and to execute the topology strategy in the physical network when the topology strategy meets the preset physical network execution conditions.

[0117] In some embodiments, the physical network operation module 306 includes:

[0118] A strategy optimization unit, configured to extract, based on the digital twin network, second network topology data that does not meet the physical network execution condition, and optimize the topology strategy based on the second network topology data to generate a topology optimization strategy when the digital twin network meets the business requirements but the topology strategy does not meet the physical network execution condition;

[0119] A topology optimization strategy execution unit is used to reconstruct the corresponding digital twin network according to the topology optimization strategy until the reconstructed digital twin network meets the business requirements and the topology optimization strategy meets the physical network execution conditions, so as to execute the topology optimization strategy in the physical network.

[0120] The device of the embodiments of the present application can execute the method provided by the embodiments of the present application, and the implementation principles are similar. The actions performed by each module in the device of each embodiment of the present application correspond to the steps in the method of each embodiment of the present application. For the detailed functional description of each module of the device, please refer to the description in the corresponding method shown in the previous text, which will not be repeated here.

[0121] An electronic device is provided in an embodiment of the present application, including a memory, a processor and a computer program stored in the memory. The processor executes the above-mentioned computer program to implement the steps of a network topology construction method based on digital twin technology. Compared with the related technology, it can achieve: building a digital twin network according to the topological logical relationship and business needs of network nodes in the physical network, realizing the connection of analog signals between each network element twin, so as to realize the coordination of network element twins, and realize data association between the digital twin network and the physical network, and realize data sharing, thereby solving the problem that the existing digital twin cannot accurately describe the status of the end-to-end business of the physical network, and realizing that the digital twin network can accurately restore the real state of the physical network, and can realize real-time monitoring and dynamic tracking of the physical network by the digital twin network, thereby improving the stability of the physical network.

[0122] In an alternative embodiment, an electronic device is provided, such as Fig.11 As shown, Fig.11The electronic device 4000 shown includes: a processor 4001 and a memory 4003. The processor 4001 and the memory 4003 are connected, such as through a bus 4002. Optionally, the electronic device 4000 may also include a transceiver 4004, which may be used for data interaction between the electronic device and other electronic devices, such as data transmission and / or data reception. It should be noted that in actual applications, the transceiver 4004 is not limited to one, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of the present application.

[0123] Processor 4001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. Processor 4001 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0124] The bus 4002 may include a path to transmit information between the above components. The bus 4002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The bus 4002 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.11 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0125] The memory 4003 may be a ROM (Read Only Memory) or other types of static storage devices that can store static information and instructions, a RAM (Random Access Memory) or other types of dynamic storage devices that can store information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical disk storage, optical disk storage (including compressed optical disk, laser disk, optical disk, digital versatile disk, Blu-ray disk, etc.), magnetic disk storage media, other magnetic storage devices, or any other medium that can be used to carry or store computer programs and can be read by a computer, without limitation herein.

[0126] The memory 4003 is used to store the computer program for executing the embodiment of the present application, and the execution is controlled by the processor 4001. The processor 4001 is used to execute the computer program stored in the memory 4003 to implement the steps shown in the above method embodiment.

[0127] An embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps and corresponding contents of the aforementioned method embodiment can be implemented.

[0128] The embodiment of the present application also provides a computer program product, including a computer program, which can implement the steps and corresponding contents of the aforementioned method embodiment when executed by a processor.

[0129] The terms "first", "second", "third", "fourth", "1", "2", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that shown or described in the drawings.

[0130] It should be understood that, although each operation step is indicated by arrows in the flowchart of the embodiment of the present application, the implementation order of these steps is not limited to the order indicated by the arrows. Unless clearly stated herein, in some implementation scenarios of the embodiment of the present application, the implementation steps in each flowchart can be performed in other orders according to demand. In addition, some or all of the steps in each flowchart may include multiple sub-steps or multiple stages based on actual implementation scenarios. Some or all of these sub-steps or stages may be executed at the same time, and each sub-step or stage in these sub-steps or stages may also be executed at different times respectively. In different scenarios of execution time, the execution order of these sub-steps or stages may be flexibly configured according to demand, and the embodiment of the present application does not limit this.

[0131] The above is only an optional implementation method for some implementation scenarios of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the solution of the present application, other similar implementation methods based on the technical ideas of the present application are also within the protection scope of the embodiments of the present application.

Claims

1. A network topology construction method based on digital twin technology, characterized in that: include: Obtain business requirements for the physical network; Acquire the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determine the topological characteristic attributes of each of the network element twins according to the topological logical relationship between the network element twins; Constructing network topology rules according to the topological logical relationship and topological characteristic attributes between the network element twins; Determine a topology strategy based on the business requirements and the network topology rules; According to the topology strategy, a digital twin network is constructed; When the topology of the digital twin network is verified to be reasonable based on the business requirements, the topology strategy is executed in the physical network to obtain a physical network corresponding to the digital twin network; The obtaining of the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determining the topological characteristic attributes of each of the network element twins according to the topological logical relationship between the network element twins, includes: Sort out the topological logical relationship between the network elements corresponding to each network node; Analyzing the topological logical relationship between the network elements to determine the topological characteristic attributes of the network elements of the same type; According to the topological logical relationship between the network elements and the topological characteristic attributes of each type of network elements, network element twins corresponding to each type of network elements are constructed, and the topological logical relationship between the network element twins and the topological characteristic attributes of the network element twins are obtained.

2. The network topology construction method based on digital twin technology according to claim 1 is characterized in that: The constructing of network topology rules according to the topological logical relationship and topological characteristic attributes between the network element twins includes: Obtaining current operation data, historical operation data and topology influencing factors of the physical network; Constructing network topology rules based on the current operation data, the historical operation data, the topology influencing factors, the topological logical relationship between the network element twins, and the topological characteristic attributes; Among them, the topological logical relationship between the network element twins includes at least one of a many-to-many association relationship, a one-to-many association relationship and a one-to-one association relationship between the network element twins, and the topological characteristic attributes include the location information, network element identification and capability association information of the network element twins.

3. The network topology construction method based on digital twin technology according to claim 1 is characterized in that: Also includes: When at least one network reconstruction condition is triggered, the network reconstruction condition is analyzed to obtain the current business demand, so as to redefine the topology strategy based on the current business demand; wherein the network reconstruction condition includes the network element failure condition corresponding to the current physical network, the business demand change condition and the reconstruction condition of the physical network.

4. The network topology construction method based on digital twin technology according to claim 1 is characterized in that: The digital twin network is constructed according to the topology strategy, including: When the digital twin network does not meet the business needs and it is verified that the topology of the digital twin network is unreasonable, the first network topology data that does not meet the business needs is extracted based on the digital twin network, and the topology strategy is adjusted according to the first network topology data, so that the digital twin network is reconstructed according to the adjusted topology strategy until the reconstructed digital twin network meets the business needs.

5. The network topology construction method based on digital twin technology according to claim 3 or 4 is characterized in that: When it is verified based on the business requirements that the topology of the digital twin network is reasonable, executing the topology strategy in the physical network includes: When the digital twin network meets the business requirements, it is verified that the topology of the digital twin network is reasonable, and when the topology strategy meets the preset physical network execution conditions, the topology strategy is executed in the physical network.

6. The network topology construction method based on digital twin technology according to claim 5 is characterized in that: When it is verified based on the business requirements that the topology of the digital twin network is reasonable, executing the topology strategy in the physical network includes: When the digital twin network meets the business requirements, but the topology strategy does not meet the physical network execution conditions, extracting second network topology data that does not meet the physical network execution conditions based on the digital twin network, and optimizing the topology strategy based on the second network topology data to generate a topology optimization strategy; Reconstruct the corresponding digital twin network according to the topology optimization strategy until the reconstructed digital twin network meets the business requirements and the topology optimization strategy meets the physical network execution conditions, so as to execute the topology optimization strategy in the physical network.

7. A network topology construction device based on digital twin technology, characterized in that: include: Business requirements acquisition module, used to obtain business requirements of the physical network; A topology attribute definition module, used to obtain the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determine the topological characteristic attributes of each network element twin according to the topological logical relationship between the network element twins; A network topology rule construction module, used to construct network topology rules according to the topological logical relationship and topological characteristic attributes between the network element twins; A topology strategy determination module, used to determine a topology strategy based on the business requirements and the network topology rules; A digital twin network construction module, used to construct a digital twin network according to the topology strategy; A physical network operation module, configured to execute the topology strategy in the physical network to obtain a physical network corresponding to the digital twin network when the topology of the digital twin network is verified to be reasonable based on the business requirements; The topology attribute definition module is used to obtain the topological logical relationship between the network element twins corresponding to each network node in the physical network, and determine the topological characteristic attributes of each network element twin according to the topological logical relationship between the network element twins, specifically for: Sort out the topological logical relationship between the network elements corresponding to each network node; Analyzing the topological logical relationship between the network elements to determine the topological characteristic attributes of the network elements of the same type; According to the topological logical relationship between the network elements and the topological characteristic attributes of each type of network elements, network element twins corresponding to each type of network elements are constructed, and the topological logical relationship between the network element twins and the topological characteristic attributes of the network element twins are obtained.

8. An electronic device comprising a memory, a processor and a computer program stored in the memory, characterized in that: The processor executes the computer program to implement the steps of the network topology construction method based on digital twin technology as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the network topology construction method based on digital twin technology described in any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the network topology construction method based on digital twin technology described in any one of claims 1 to 6 are implemented.

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