CN117014315A - Network management method, device, system and storage medium - Google Patents
Network management method, device, system and storage medium Download PDFInfo
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Abstract
The application discloses a network management method, a network management device, a network management system and a storage medium. Acquiring a predicted capability information set according to network slicing requirement information, wherein the predicted capability information set comprises at least two pieces of predicted capability information corresponding to different network slicing subnet instances in N network slicing subnet instances respectively, and each piece of predicted capability information comprises static capability information and dynamic capability information of the corresponding network slicing subnet instance; generating target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set, wherein the target network slicing subnet requirement information is used for creating target network slicing subnet examples in N network slicing subnet examples; and instructing the network slicing subnet management device to create the target network slicing subnet instance based on the target network slicing subnet requirement information. The success rate of creating the network slicing subnet instance is improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a network management method, a device, a system, and a storage medium.
Background
The network slice requirement is a requirement of various network performance indexes of end-to-end (E2E) Network Slices (NS) of a user or an operator, and it may be decomposed into various network slice subnet management devices by the network slice management device so that the requirements are satisfied. However, when the network slice management device decomposes the network slice requirement to obtain the network slice subnet requirement corresponding to each network slice subnet instance, each network slice subnet instance is likely to not reach the corresponding network slice subnet requirement, which requires the network slice management device to decompose the network slice requirement multiple times. On the other hand, since each network slicing subnet management device is to create a network slicing subnet instance on a physical network according to the network slicing subnet requirement, if the reliability of the network slicing requirement decomposition scheme is low, each network slicing subnet management device can create or delete multiple network slicing subnet instances, which greatly increases the negative effects on other services running on the same physical network at the same time, and greatly increases the probability of network failure and the cost of network rollback.
Disclosure of Invention
The application provides a network management method, a device, a system and a storage medium, which are used for improving the success rate of creating a network slicing subnet instance.
In a first aspect, a network management method is provided, the method is used for managing a network slice instance, the network slice instance has N network slice subnet instances to be created, N is greater than or equal to 2, and the method includes: obtaining an estimated capability information set according to network slicing requirement information, wherein the estimated capability information set comprises at least two pieces of estimated capability information corresponding to different network slicing sub-network examples in the N network slicing sub-network examples respectively, each piece of estimated capability information comprises static capability information and dynamic capability information of the corresponding network slicing sub-network example, the static capability information indicates optimal values which can be respectively reached by one or more network performance indexes of the corresponding network slicing sub-network example, and the dynamic capability information indicates actual values which can be respectively reached by one or more network performance indexes of the corresponding network slicing sub-network example; generating target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set, wherein the target network slicing subnet requirement information is used for creating target network slicing subnet instances in the N network slicing subnet instances; and sending first indication information to a network slicing subnet management device, wherein the first indication information indicates the network slicing subnet management device to create the target network slicing subnet instance based on the target network slicing subnet requirement information.
In the aspect, the network slice management device generates the target network slice subnet requirement information based on the network slice requirement information and the estimated capability information set, instructs the network slice subnet management device to create the target network slice subnet instance based on the target network slice subnet requirement information, and improves the success rate of creating the network slice subnet instance.
In one possible implementation, the method is performed by a network slice management device, and the obtaining the estimated capability information set according to the network slice requirement information includes: and respectively acquiring estimated capability information of one network slicing subnet instance in the N network slicing subnet instances from at least two network slicing subnet management devices to obtain at least two pieces of estimated capability information.
In this implementation, the network slice management may collect the estimated capability information from at least two network slice subnet management devices, and the target network slice subnet requirement information generated based on the network slice requirement information and the estimated capability information set may improve a success rate of network slice subnet instance creation.
In another possible implementation, the method is performed by a network digital twin, and before the obtaining the estimated capability information set according to the network slice requirement information, the method further includes: receiving the network slice requirement information from a network slice management device; and obtaining the estimated capability information set according to the network slice demand information, including: according to the network slicing requirement information, estimated capability information of one network slicing subnet instance in the N network slicing subnet instances is respectively obtained from at least two network slicing subnet management mirror devices, and at least two pieces of estimated capability information are obtained; the first indication information comprises the target network slicing subnet requirement information.
In the implementation, the network slicing management device generates high-reliability target network slicing subnet requirement information by adopting the network digital twin body, so that the network slicing management device is helped to acquire more accurate target network slicing subnet requirement information, the trial-and-error times of the target network slicing subnet requirement information are further reduced, the system resource consumption of each network slicing subnet management device is saved, and the risk of network problems is reduced.
In another possible implementation, the obtaining, from at least two network slice subnet management devices, estimated capability information of one network slice subnet instance, to obtain the at least two pieces of estimated capability information includes: respectively sending capability inquiry requests to the at least two network slice subnet management devices; and receiving a capability query feedback from the at least two network slice subnet management devices, respectively, wherein the capability query feedback comprises estimated capability information of one network slice subnet instance.
In the implementation, the network slice management device can obtain the estimated capability information of each network slice subnet instance in a capability query mode.
In yet another possible implementation, the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the corresponding network slice subnet instance, and actual values respectively achievable by the plurality of network performance indexes are obtained based on the association relationship between the plurality of network performance indexes.
In this implementation, there is a correlation between multiple network performance indexes, and the correlation is determined by the actual situation of the network slicing subnet instance (for example, cell algorithm switch, number of base stations, location of user plane function network elements, number of core network functions, etc., which are configurable by the network manager), and is a quantitative description of the mutual influence between multiple network performance indexes. Thus, each network slice subnet management device also obtains one or more associations between the plurality of network performance indicators in the network slice subnet instance. Each association information is used to indicate an association between two or more network performance indicators in each network slice subnet instance. For example, the network performance index includes latency, reliability, throughput, then the plurality of associations includes an association between latency and reliability, an association between latency, reliability and throughput, and so on. Based on the one or more association relationships, actual values respectively achievable by the plurality of network performance indexes can be obtained.
In yet another possible implementation, the method further includes: analyzing service grade protocol and service characteristic information from the network slice demand information; the capability query request includes the service level agreement and the service characteristic information.
In the implementation, the network slice management device sends the service characteristic information to each network slice subnet management device, and the service characteristic information can help each network slice subnet management device to establish a service model, so that each network slice subnet management device considers the actual service condition when performing capability assessment, thereby improving the accuracy of capability assessment of each network slice subnet management device, further enhancing the feasibility of network slice subnet demand information generated by the network slice management device, further reducing the cycle times of verifying the network slice subnet demand information, further reducing the time required by generating target network slice subnet demand information, and reducing the consumption of system resources of each network slice subnet management device.
In yet another possible implementation, the capability query request includes network slice requirement information and second indication information, where the second indication information is used to indicate parsing of service level agreements and service feature information from the network slice requirement information.
In this implementation, the network slice management device may also instruct the network slice subnet management device to parse the service characteristic information from the network slice requirement information.
In yet another possible implementation, the generating the target network slice subnet requirement information based on the network slice requirement information and the set of pre-estimated capability information includes: and decomposing each network performance index of the one or more network performance indexes in the N network slicing sub-network instances according to one or more network performance indexes and the estimated capability information set included in the network slicing requirement information to obtain target network slicing sub-network requirement information, wherein the target network slicing sub-network requirement information comprises one or more network performance indexes which are required to be met by the target network slicing sub-network instance.
In the implementation, the network slicing management device obtains the optimal values which can be reached by one or more network performance indexes of each network slicing subnet instance respectively, and the association relation among a plurality of network performance indexes reported by each network slicing subnet management device, and based on the association information, the actual values which can be reached by one or more network performance indexes of the network slicing subnet instance respectively can be obtained, so that target network slicing subnet requirement information is generated according to the optimal values and the association relation, the target network slicing subnet requirement information is sent to the network slicing subnet management device, the network slicing subnet management device creates the network slicing subnet instance according to the target network slicing subnet requirement information, and the success rate of the network slicing subnet instance creation is improved.
In yet another possible implementation, the obtaining, from at least two network slice subnet management devices, the estimated capability information of one network slice subnet instance respectively includes: generating initial network slicing subnet requirement information of different network slicing subnet instances in the N network slicing subnet instances based on the network slicing requirement information and the static capacity information; respectively sending network slicing subnet instance verification requests to the at least two network slicing subnet management devices, wherein the network slicing subnet instance verification requests comprise initial network slicing subnet requirement information of corresponding network slicing subnet instances; and receiving network slicing subnet instance verification feedback from the at least two network slicing subnet management devices, respectively, the slicing subnet instance verification feedback including the dynamic capability information of the corresponding network slicing subnet instance, wherein the dynamic capability information indicates an achievement result of an initial network slicing subnet requirement of the corresponding network slicing subnet instance.
In the implementation, a link for verifying the network slicing subnet requirement information is added before the network slicing subnet management device instructs each network slicing subnet management device to create the network slicing subnet instance, so that the condition that each network slicing subnet management device directly applies the network slicing subnet requirement information to a physical network can be reduced, and time consumption, influence on other services on the network and network rollback cost are reduced.
In yet another possible implementation, the network slice subnet instance verification feedback further includes a difference between actual achievement of a plurality of network performance metrics for the respective network slice subnet instance and the initial network slice subnet requirement.
In the implementation, the verification feedback of the network slicing sub-network instance further comprises an index achievement situation, the network slicing management equipment combines the index achievement situation with the associated information to regenerate the target network slicing sub-network requirement information, so that the cycle times of verifying the network slicing sub-network requirement information can be further reduced, the time required for generating the target network slicing sub-network requirement information is further shortened, and the consumption of system resources of each network slicing sub-network instance is reduced.
In a second aspect, a network management method is provided, where the method is used to manage a target network slicing subnet instance, where the target network slicing subnet instance belongs to one of N network slicing subnet instances to be created in the network slicing instances, and N is greater than or equal to 2, and the method includes: obtaining estimated capability information of the target network slicing subnet instance, wherein the estimated capability information comprises static capability information and dynamic capability information of the target network slicing subnet instance, the static capability information indicates optimal values which can be respectively achieved by one or more network performance indexes of the target network slicing subnet instance, and the dynamic capability information indicates actual values which can be respectively achieved by one or more network performance indexes of the target network slicing subnet instance; the estimated capability information is sent to network slice management equipment and is used for generating target network slice subnet requirement information; receiving first indication information from the network slice management device, wherein the first indication information indicates that the target network slice subnet instance is created based on the target network slice subnet requirement information; and creating the target network slicing subnet instance according to the first indication information.
In the implementation, the network slicing subnet management device generates the target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set received from each network slicing subnet management device by sending the estimated capability information of the target network slicing subnet instance to the network slicing subnet management device, instructs the network slicing subnet management device to create the target network slicing subnet instance based on the target network slicing subnet requirement information, and improves the success rate of creating the network slicing subnet instance.
In one possible implementation, the obtaining the estimated capability information of the target network slicing subnet instance includes: receiving a capability query request from a network slice management device; obtaining estimated capability information of the target network slicing subnet instance; and said sending the estimated capability information to a network slice management device, comprising: and sending capability query feedback to the network slice management equipment, wherein the capability query feedback comprises estimated capability information of the target network slice subnet instance.
In another possible implementation, the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the target network slicing subnet instance, and actual values respectively achievable by the plurality of network performance indexes are obtained based on the association relationship between the plurality of network performance indexes.
In yet another possible implementation, the capability query request includes service level protocol and service feature information, and the obtaining the estimated capability information of the target network slicing subnet instance includes: and acquiring static capability information of the target network slicing subnet instance based on the service level protocol, and acquiring dynamic capability information of the target network slicing subnet instance based on the service level protocol and the service characteristic information.
In yet another possible implementation, the capability query request includes network slice requirement information and indication information, where the indication information is used to indicate parsing of service level agreements and service feature information from the network slice requirement information; the obtaining the estimated capability information of the target network slicing subnet example includes: analyzing the service level protocol and the service characteristic information from the network slice demand information according to the network slice demand information and the indication information; and acquiring static capability information of the target network chip subnet instance based on the service level protocol, and acquiring dynamic capability information of the target network chip subnet instance based on the service level protocol and the service characteristic information.
In yet another possible implementation, sending the estimated capability information to the network slice management device includes: receiving a network slicing subnet instance verification request from the network slicing management device, the network slicing subnet instance verification request including initial network slicing subnet requirement information of the target network slicing subnet instance; and sending a network slicing subnet instance verification feedback to the network slicing management device, the slicing subnet instance verification feedback including the dynamic capability information of the target network slicing subnet instance, wherein the dynamic capability information indicates an achievement result of an initial network slicing subnet requirement of the target network slicing subnet instance.
In a third aspect, a network management apparatus is provided. The network management apparatus may implement the method in the first aspect described above. The network management device may be a chip or a server, for example. The above method may be implemented by software, hardware, or by hardware executing corresponding software.
In one possible implementation, the network management device is configured to manage a network slice instance, where the network slice instance has N network slice subnet instances to be created, and N is greater than or equal to 2, and the network management device includes: the network slicing device comprises an acquisition unit, a prediction capability information set and a dynamic capability information acquisition unit, wherein the acquisition unit is used for acquiring a prediction capability information set according to network slicing requirement information, the prediction capability information set comprises at least two pieces of prediction capability information respectively corresponding to different network slicing sub-network instances in the N network slicing sub-network instances, each piece of prediction capability information comprises static capability information and dynamic capability information of the corresponding network slicing sub-network instance, the static capability information indicates optimal values which can be respectively reached by one or more network performance indexes of the corresponding network slicing sub-network instance, and the dynamic capability information indicates actual values which can be respectively reached by one or more network performance indexes of the corresponding network slicing sub-network instance; the first generation unit is used for generating target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set, and the target network slicing subnet requirement information is used for creating target network slicing subnet examples in the N network slicing subnet examples; and the first sending unit is used for sending first indication information to the network slicing subnet management device, wherein the first indication information indicates the network slicing subnet management device to create the target network slicing subnet instance based on the target network slicing subnet requirement information.
Optionally, the network management device is a network slice management device, and the obtaining unit is configured to obtain, from at least two network slice subnet management devices, estimated capability information of one network slice subnet instance in the N network slice subnet instances, respectively, to obtain the at least two pieces of estimated capability information.
Optionally, the network management device is a network digital twin; the network management apparatus further includes: a first receiving unit configured to receive the network slice requirement information from a network slice management apparatus; the obtaining unit is configured to obtain estimated capability information of one network slicing subnet instance of the N network slicing subnet instances from at least two network slicing subnet management mirroring devices according to the network slicing requirement information, so as to obtain the at least two pieces of estimated capability information; the first indication information comprises the target network slicing subnet requirement information.
Optionally, the acquiring unit includes: a second sending unit, configured to send capability query requests to the at least two network slice subnet management devices respectively; and the second receiving unit is used for respectively receiving a capability query feedback from the at least two network slicing subnet management devices, wherein the capability query feedback comprises estimated capability information of one network slicing subnet instance.
Optionally, the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the corresponding network slice subnet instance, and based on the association relationship between the plurality of network performance indexes, actual values respectively reachable by the plurality of network performance indexes are obtained.
Optionally, the network management device further includes: the analysis unit is used for analyzing service level protocols and service characteristic information from the network slice demand information; the capability query request includes the service level agreement and the service characteristic information.
Optionally, the capability query request includes network slice requirement information and second indication information, where the second indication information is used to indicate parsing of service level agreements and service feature information from the network slice requirement information.
Optionally, the first generating unit is configured to decompose each network performance index of the one or more network performance indexes in the N network slicing subnet instances according to one or more network performance indexes included in the network slicing requirement information and the estimated capability information set, to obtain the target network slicing subnet requirement information, where the target network slicing subnet requirement information includes one or more network performance indexes that the target network slicing subnet instance needs to meet.
Optionally, the acquiring unit includes: the second generating unit is used for generating initial network slicing subnet requirement information of different network slicing subnet instances in the N network slicing subnet instances based on the network slicing requirement information and the static capacity information; a third sending unit, configured to send network slicing subnet instance verification requests to the at least two network slicing subnet management devices, where the network slicing subnet instance verification requests include initial network slicing subnet requirement information of corresponding network slicing subnet instances; and a third receiving unit, configured to receive network slice subnet instance verification feedback from the at least two network slice subnet management devices, where the slice subnet instance verification feedback includes the dynamic capability information of the corresponding network slice subnet instance, and the dynamic capability information indicates an achievement result of an initial network slice subnet requirement of the corresponding network slice subnet instance.
Optionally, the network slice subnet instance verification feedback further includes a difference between actual achievement of a plurality of network performance metrics for the corresponding network slice subnet instance and the initial network slice subnet requirement.
In a fourth aspect, a network management apparatus is provided. The network management apparatus may implement the method in the second aspect described above. For example, the network management device may be a chip or a server. The above method may be implemented by software, hardware, or by hardware executing corresponding software.
In one possible implementation, the apparatus is configured to manage a target network slicing subnet instance, where the target network slicing subnet instance belongs to one of N network slicing subnet instances to be created in the network slicing instances, where N is greater than or equal to 2, and the network management apparatus includes: a first obtaining unit, configured to obtain estimated capability information of the target network slicing subnet instance, where the estimated capability information includes static capability information and dynamic capability information of the target network slicing subnet instance, the static capability information indicates optimal values that can be reached by one or more network performance indexes of the target network slicing subnet instance, and the dynamic capability information indicates actual values that can be reached by one or more network performance indexes of the target network slicing subnet instance; the first sending unit is used for sending the estimated capability information to the network slice management equipment, wherein the estimated capability information is used for generating target network slice subnet requirement information; a first receiving unit configured to receive first instruction information from the network slice management apparatus, the first instruction information instructing to create the target network slice subnet instance based on the target network slice subnet requirement information; and the creation unit is used for creating the target network slicing subnet instance according to the first indication information.
Optionally, the first acquisition unit includes: a second receiving unit for receiving a capability query request from the network slice management apparatus; the second acquisition unit is used for acquiring the estimated capability information of the target network slicing subnet instance; and the first sending unit is used for sending capability query feedback to the network slice management equipment, wherein the capability query feedback comprises estimated capability information of the target network slice subnet instance.
Optionally, the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the target network slicing subnet instance, and based on the association relationship between the plurality of network performance indexes, actual values respectively reachable by the plurality of network performance indexes are obtained.
Optionally, the capability query request includes a service level protocol and service feature information, and the first obtaining unit is configured to obtain static capability information of the target network slicing subnet instance based on the service level protocol, and obtain dynamic capability information of the target network slicing subnet instance based on the service level protocol and the service feature information.
Optionally, the capability query request includes network slice requirement information and indication information, where the indication information is used to indicate that service level protocol and service feature information are resolved from the network slice requirement information; the first acquisition unit includes: the analyzing unit is used for analyzing the service grade protocol and the service characteristic information from the network slice demand information according to the network slice demand information and the indication information; and a third obtaining unit, configured to obtain static capability information of the target network chip subnet instance based on the service level protocol, and obtain dynamic capability information of the target network chip subnet instance based on the service level protocol and the service characteristic information.
Optionally, the first transmitting unit includes: a third receiving unit, configured to receive a network slicing subnet instance verification request from the network slicing management device, where the network slicing subnet instance verification request includes initial network slicing subnet requirement information of the target network slicing subnet instance; and a second sending unit, configured to send a network slicing subnet instance verification feedback to the network slicing management device, where the slicing subnet instance verification feedback includes the dynamic capability information of the target network slicing subnet instance, and the dynamic capability information indicates an achievement result of an initial network slicing subnet requirement of the target network slicing subnet instance.
In a further possible implementation manner, the network management apparatus in the third aspect or the fourth aspect includes a processor coupled to the memory; the processor is configured to support the apparatus to perform the corresponding functions in the network management method described above. The memory is used to couple with the processor, which holds the computer program (or computer-executable instructions) and/or data necessary for the device. Optionally, the network management device may further comprise a communication interface for supporting communication between the device and other network elements, such as transmission or reception of data and/or signals. By way of example, the communication interface may be a transceiver, circuit, bus, module, or other type of communication interface. Alternatively, the memory may be located within the network management device and integrated with the processor; or may be located external to the network management device.
In a further possible implementation manner, the network management apparatus in the third aspect or the fourth aspect includes a processor and a transceiver apparatus, where the processor is coupled to the transceiver apparatus, and the processor is configured to execute a computer program or instructions to control the transceiver apparatus to receive and send information; the processor is also adapted to implement the above-described methods by logic circuits or executing code instructions when the processor executes the computer program or instructions. The transceiver device may be a transceiver, a transceiver circuit, or an input/output interface, and is configured to receive signals from other network management devices other than the network management device and transmit the signals to the processor or send the signals from the processor to the other network management devices other than the network management device. When the network management device is a chip, the transceiver is a transceiver circuit or an input/output interface.
When the network management apparatus in the above third or fourth aspect is a chip, the transmission unit may be an output unit such as an output circuit or a communication interface; the receiving unit may be an input unit such as an input circuit or a communication interface. When the network management device is a terminal, the transmitting unit may be a transmitter or a transmitter; the receiving unit may be a receiver or a receiver.
In a fifth aspect, there is provided a network management system comprising the network management apparatus according to the third aspect and comprising the network management apparatus according to the fourth aspect.
In a sixth aspect, there is provided a computer readable storage medium having stored thereon a computer program or instructions which, when executed by a processor, perform a method as described in any one of the first or second aspects or any implementation thereof.
A seventh aspect provides a computer program product which, when executed on a computing device, causes the method as described in any one of the first or second aspects to be performed.
In an eighth aspect, there is provided a circuit coupled to a memory, the circuit being adapted to perform the method of the first aspect, the second aspect or any one of its possible embodiments. The circuitry may include chip circuitry.
Drawings
Fig. 1a is a schematic diagram of a network management system according to an embodiment of the present application;
fig. 1b is a schematic diagram of another architecture of a network management system according to an embodiment of the present application;
fig. 1c is a schematic architecture diagram of another network management system according to an embodiment of the present application;
Fig. 2 is a schematic diagram of creating a network slice subnet example according to an embodiment of the present application;
fig. 3 is a flow chart of a network management method according to an embodiment of the present application;
fig. 4 is a flowchart of another network management method according to an embodiment of the present application;
fig. 5 is a flowchart of another network management method according to an embodiment of the present application;
fig. 6 is a flowchart of another network management method according to an embodiment of the present application;
fig. 7 is a flowchart of another network management method according to an embodiment of the present application;
fig. 8 is a flowchart of another network management method according to an embodiment of the present application;
fig. 9 is a flowchart of another network management method according to an embodiment of the present application;
fig. 10 is a flowchart of another network management method according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a network management device according to an embodiment of the present application;
fig. 12 is a schematic structural diagram of another network management device according to an embodiment of the present application;
fig. 13 is a schematic structural diagram of another network management device according to an embodiment of the present application.
Detailed Description
Embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
The embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) communication system, fifth generation (5) th generation, 5G) communication system and future sixth generation (6 th generation, 6G) communication systems, and the like.
The communication system includes a radio access network (radio access network, RAN), a transport network (transport network, TN), and a Core Network (CN). The RAN is used for controlling User Equipment (UE) to access to the mobile communication network through wireless; TN is a network between the RAN and the CN for transmitting various voice and data services, and usually uses optical fibers as transmission media; the CN mainly provides UE connectivity, management of the UE, and bearer completion for the service.
A network management system may be created on the communication system. Fig. 1a is a schematic diagram of a network management system according to an embodiment of the present application. The network management system includes a network slice management system 11 and a network slice subnet management system 12. Illustratively, the network slice management system 11 may be referred to as a cross-domain management system (cross-domain management system), and the network slice subnet management system 12 may be referred to as a domain management system (domain management system). Wherein the network slice management system comprises a network slice management device 111. Illustratively, the network slice management device 111 may also be referred to as a cross-domain manager. The network slice management device 111 is responsible for managing end-to-end network slice instances through each network slice subnet management device, and functions include capability summarization of each network slice subnet instance, generation of target network slice subnet requirement information, management of the network slice subnet instance, and the like. The module implementing this function may be, for example, a network slice management function (network slice management function, NSMF) network element. Wherein RAN, TN, CN each corresponds to a domain and is managed by a network slice subnet management device. One network slice subnet instance is created for each domain. The network slice subnet management system 12 includes: network slice subnet management device-RAN 121, network slice subnet management device-TN 122, and network slice subnet management device-CN 123. Wherein, the network slice subnet management device-RAN 121 manages the RAN domain; the network slice subnet management device-TN 122 manages a TN domain; the network slice subnet management device-CN 123 manages the CN domain. Each network slicing subnet management device is responsible for capability assessment of respective domains, creation of network slicing subnet instances, verification of target network slicing subnet requirements and the like. The network slice subnet management device may also be referred to as a single domain manager. The module implementing this function may be, for example, a network slice subnet management function (network slice subnet management function, NSSMF) network element.
Fig. 1b is a schematic diagram of another network management system according to an embodiment of the present application. Unlike the network management system shown in fig. 1a, the network slice management system 21 further includes a network Digital Twin (DT) 212. The network digital twin 212 is an end-to-end network digital twin that is a mirror image or map of the physical network in the digital world and ensures that it remains highly consistent with the physical network state and behavior rules through real-time data interactions with the physical network. The network digital twin 212 is connected to the network slice management device 211, and acquires real-time data of the physical network of each domain from each network slice subnet management device through the network slice management device 211.
Fig. 1c is a schematic diagram of a network management system according to another embodiment of the present application. Unlike the network management system shown in fig. 1b, in this network management system, the network digital twin 33 is independent from the network slice management system 31. The network digital twin 33 is connected to each network slice subnet management device in addition to the network slice management device 311. The network digital twin 33 may acquire real-time data of the physical network of each domain from each network slice subnet management device.
The following are definitions of several concepts to which embodiments of the application may relate:
network slices are networks created on physical or virtual infrastructure to support logical separation of specific network capabilities from network characteristics, complete end-to-end whole networks, which may include RAN, TN, CN and application servers, partial network functions may also be shared among multiple network slices, are networks that satisfy the third generation partnership project (3 rd generation partnership project,3 GPP) proposed a key technology for the 5G mobile communication technology with respect to network differentiation requirements. In general, the network characteristics of different network slices are not the same, and the network slices are required to be isolated from each other and not to influence each other. Network slice requirements such as augmented reality (augmented reality, AR) or Virtual Reality (VR) servicesLarge bandwidth, low latency; network slicing of internet of things (internet of things, ioT) traffic requires support for massive terminal access, but has small bandwidth and low latency requirements. The network slice may also be any combination of user equipment, access network, transport network, core network and application server.
The network slice example is a logic network which runs truly and can meet certain network characteristics or service requirements. The network slicing example enables an operator to construct multiple private, virtual, isolated, on-demand customized logical networks on top of one physical network, meeting different requirements (e.g., latency, bandwidth, number of connections, etc.) of different industry customers for network capabilities. One network slice instance may provide one or more network services. The network slice instance may be created by a network slice management system, which may create multiple network slice instances and manage them at the same time. Illustratively, each network slice instance may include at least one of the following network slice subnet instances: a core network chip subnet instance, a transport network chip subnet instance, and a radio access network chip subnet instance. The network slice instance may be created based on a network slice template (network slice template, NST).
A complete network slice instance is capable of providing complete end-to-end network services, and may constitute network slice subnet instances and/or network functions. A network slice subnet instance refers to a set of network functions and associated resources (e.g., computing, storage, and network resources) that support the network slice instance in the network slice subnet instance. Network slice subnet instances can be created based on network slice subnet templates (network slice subnet template, NSST).
The network slice requirement information includes service level agreements (service level agreement, SLAs). An SLA is a contract (or a portion of a contract) between a service provider and a customer intended to establish a common understanding of services, priorities, responsibilities, etc. The 5G mobile communication technology is a new round of communication technology as a transition between generations, and more focuses on enabling the vertical industry. According to vertical industry requirements, the network performance indicators of the communication network include one or more of the following: user rate, end-to-end latency, packet reliability (reliability), throughput (throughput), coverage (coverage), energy (energy), positioning accuracy, clock synchronization. The 5G cuts out a plurality of 'slices' from a physical network through a network slicing technology, and takes network slicing requirement information of a service as a center to provide customized, differentiated and deterministic network service capability for toB (to Business) service.
The network slice requirement is a requirement of an end-to-end network slice instance, which needs to be decomposed by the network slice management device and submitted to each network slice subnet management device for satisfaction. Wherein decomposing the network slice requirements refers to generating a plurality of target network slice subnet requirements based on the network slice requirements. Taking the end-to-end delay as an example, the end-to-end delay is the sum of the delays of all network slicing sub-network instances, and the network slicing management device obtains the delay requirement of the network slicing instance to be 100ms according to the network slicing requirement, so that the network slicing management device may generate the delay to the delay requirement of all the network slicing sub-network instances according to the capabilities of all the domains (including a core network, a radio access network and a transmission network): 70ms, 15ms and 15ms, and respectively sent to each network slice subnet management device.
When an existing network slice instance fails to meet the network slice requirements of a service, a new network slice instance needs to be created to carry the service. The primary task of creating the network slice instance is to refine the network slice requirement information and further generate the target network slice subnet requirement information. As shown in fig. 2, a schematic diagram is created for a network slice example provided in an embodiment of the present application. In fig. 2, network slice instance clients (e.g., factories, guests (very important person, VIP) users) sort traffic scenario requirements according to a generic slice template (generic slice template, GST) set by the global system for mobile communications (GSMA) society (global system for mobile communications association). The operator then translates it into network slice requirement information (ServiceProfile) for the 3GPP defined network slice instance and sends it to the network slice management device (e.g. NSMF network element). After obtaining the end-to-end network slicing requirement information, the network slicing management device generates target network slicing subnet requirement information (SliceProfile) according to the capability of each network slicing subnet instance (including a core network, a wireless access network and a transmission network) according to the network slicing requirement information, and transmits the target network slicing subnet requirement information (SliceProfile) to the network slicing subnet management device (NSSMF network element). And after each network slicing subnet management device obtains the target network slicing subnet requirement information sent by the network slicing management device, executing a network slicing subnet instance creation flow according to the target network slicing subnet requirement information.
The ServiceProfile comprises SLA, service characteristic information, some public attributes and the like.
The target network slicing subnet requirement information comprises network performance indexes of network slicing subnet examples, service characteristic information corresponding to the network slicing subnet examples, some public attributes and the like.
Fig. 3 is a schematic flow chart of a network management method according to an embodiment of the present application. Illustratively, the method may include the steps of:
s301, the network slice management device sends capability query requests to each network slice subnet management device (2 network slice subnet management devices are illustrated in the figure: the network slice subnet management device 1 and the network slice subnet management device 2).
Illustratively, the format of the capability query request may be: index list < index name >. Wherein the index list includes index names of one or more network performance indexes. Wherein, the index name can be replaced by the index mark. Illustratively, the index list includes: 'delay', 'resolution', 'throughput', 'coverage', 'energy', and the like.
S302, after the network slicing subnet management device 1 and the network slicing subnet management device 2 receive the capability query request, static capability information of corresponding network slicing subnet instances is respectively obtained.
The network slice subnet management device 1, the network slice subnet management device 2, respectively, illustratively evaluate the respective achievable optimum values of the respective network performance indicators. I.e. the static capability information indicates the optimal value that can be reached by one or more network performance indicators of the corresponding network slice subnet instance, respectively. For example, the delay of the network slicing subnet example can reach 50ms at the minimum, the reliability can reach 99.999% at the maximum, and the throughput rate can reach 100Mbps at the maximum.
S303, the network slice subnet management device 1 and the network slice subnet management device 2 respectively send capability query feedback to the network slice management device.
Illustratively, the format of the capability feedback may be: capability information list < index name, capability value >. Wherein, the index name is consistent with the index name in the capability query request in step S301; the capability value indicates static capability information of the corresponding network slice subnet instance, e.g., the capability value indicates an optimal value that the corresponding network slice subnet instance can reach on each index, respectively.
For example, the capability information list fed back by a certain network slice subnet management device may include [ < 'delay',50ms >, < 'reliability',99.999% >, < 'throughput',100Mbps > ], which indicates that the delay of the corresponding network slice subnet instance is as low as 50ms, the reliability is as high as 99.999%, and the throughput is as high as 100Mbps.
S304, the network slice management equipment generates target network slice subnet requirement information according to the network slice requirement information and the static capacity information.
Illustratively, the target network slice subnet requirement information is generated from one or more network performance metrics in the network slice requirement information, a relationship between each network performance metric in each network slice subnet instance, and static capability information.
Wherein, the relation between each network performance index in each network slicing subnet example comprises: the delay of the network slice instance is equal to the sum of the delays of the network slice subnet instances, the reliability of the network slice instance is equal to the product of the reliability of the network slice subnet instances, the throughput rate of the network slice instance is equal to the minimum of the throughput rate of the network slice subnet instances, and so on.
The process of generating the target network slicing subnet requirement information mainly depends on multiple trial and error. Taking the time delay and reliability index as an example, if the time delay index of a certain network slicing subnet example is not achieved, the time delay threshold is increased when the target network slicing subnet requirement information is generated next time, and meanwhile, the reliability threshold can be increased.
S305, the network slice management device sends a network slice subnet instance creation request to the network slice subnet management device 1 and the network slice subnet management device 2 respectively.
Wherein the network slicing subnet instance creation request sent to the network slicing subnet management device 1 includes first target network slicing subnet requirement information for creating the network slicing subnet instance 1. The second target network slice subnet requirement information transmitted to the network slice subnet management device 2 is used to create the network slice subnet instance 2. The target network slice subnet requirement information may be the above-mentioned slicerp profile.
S306, the network slicing subnet management device 1 and the network slicing subnet management device 2 execute a network slicing subnet instance creation flow according to the network slicing subnet instance creation request respectively.
S307, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance creation feedback to the network slicing subnet management device.
Wherein the network slice subnet instance creation feedback includes indication information. The indication information may be an identification (flag) cell. Wherein the flag cell indicates whether the network slice subnet instance was created successfully, and takes a value of "success" or "failure".
In this embodiment, the network slice subnet management device carries in the capability query feedback the optimal values that each network performance index specified by the network slice management device can reach, respectively. But these static capability information can only account for the optimal values of the network slice subnet instances on the various metrics. And there is a correlation between these indexes (for example, the increase of the delay affects the reliability and throughput rate), where the correlation is determined by the actual situation of the network slicing subnet example, and the optimal value on each index cannot represent the actual value of the entire network slicing subnet example (for example, the reliability can only reach 99.9% while the delay reaches 50 ms). If the network slice management device generates the target network slice subnet requirement information according to the static capability information and the network slice requirement information reported by the network slice subnet management devices, the static capability information cannot reflect the value of each network slice subnet instance on all network performance indexes (for example, the requirement of throughput rate index is lowered to realize low time delay), so that each network slice subnet instance is likely to not reach the respective target network slice subnet requirement, and the network slice management device is required to execute the process of generating the target network slice subnet requirement information for a plurality of times. On the other hand, after the network slicing sub-network requirement information is generated by the network slicing management device, the target network slicing sub-network requirement information is sent to the corresponding network slicing sub-network management device, each network slicing sub-network management device directly creates a network slicing sub-network instance on a physical network, and because the reliability of the generated target network slicing sub-network requirement information is low, each network slicing sub-network instance can perform multiple network slicing sub-network instance creation, and therefore the influence on other services running on the same physical network at the same time and the probability of network problems and the cost of network rollback are greatly increased.
In view of this, the embodiment of the present application further provides a network management scheme, which generates the target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set, and instructs the network slicing subnet management device to create the target network slicing subnet instance based on the target network slicing subnet requirement information, thereby improving the success rate of creating the network slicing subnet instance.
Fig. 4 is a schematic flow chart of another network management method according to an embodiment of the present application. The method is used for managing the network slice instance by the network slice management equipment, wherein the network slice instance has N network slice subnet instances to be created, and N is more than or equal to 2. In this embodiment, n=2. Illustratively, the method may include the steps of:
s401, the network slice management equipment acquires the estimated capability information set according to the network slice demand information. As shown in fig. 2, the network slice management device receives translated network slice requirement information (e.g., serviceProfile as described above) from the operator. The network slice requirement information refers to requirements of end-to-end network slice examples, including one or more network performance indicators such as user rate, end-to-end delay, packet reliability, throughput, coverage, energy, positioning accuracy, clock synchronization, and the like.
After the network slice management device parses out the network slice requirement information, the network slice requirement needs to be resolved. In order to improve the success rate of the decomposition, the network slice management device acquires the estimated capability information set according to the network slice requirement information before decomposing the network slice requirement.
The estimated capability information set comprises at least two pieces of estimated capability information corresponding to different network slicing subnet instances in the N network slicing subnet instances respectively. Illustratively, a network slice subnet instance to be created may correspond to a piece of estimated capability information.
The network slice management device may obtain estimated capability information of one network slice subnet instance of the N network slice subnet instances from at least two network slice subnet management devices, respectively, to obtain at least two pieces of estimated capability information. As shown in fig. 4, assuming that n=2, the network slice management apparatus may acquire the estimated capability information of one network slice subnet instance from the network slice subnet management apparatus 1, and may acquire the estimated capability information of another network slice subnet instance from the network slice subnet management apparatus 2. N=2 is merely an example, and the present application does not limit the number of network slice subnet instances.
The pre-estimated capability information refers to a pre-evaluation of the capabilities of network slice subnet instances that have not yet been created.
Wherein each piece of estimated capability information comprises static capability information and dynamic capability information of a corresponding network slice subnet instance.
The static capability information indicates an optimal value that can be reached by one or more network performance indicators of the corresponding network slice subnet instance, respectively. For example, the delay of a certain network slicing subnet example can reach 50ms at the minimum, the reliability can reach 99.999% at the maximum, and the throughput rate can reach 100Mbps at the maximum.
The dynamic capability information indicates actual values respectively achievable by one or more network performance indicators of the corresponding network slice subnet instance. There is a correlation between the network performance indexes (for example, the reliability and throughput rate are affected by the increase of time delay), and the correlation is determined by the actual situation of the network slicing subnet instance; and whether the network slicing subnet instance can meet the network slicing subnet requirement is determined by the actual situation of the network slicing subnet instance. The dynamic capability information may indicate actual values that may be reached by one or more network performance indicators of the corresponding network slice subnet instance, respectively.
S402, the network slice management equipment generates target network slice subnet requirement information based on the network slice requirement information and the estimated capability information set.
After the network slice management equipment acquires the estimated capability information set, the network slice requirement needs to be decomposed, and target network slice subnet requirement information is generated. Specifically, the network slice management device generates target network slice subnet requirement information according to one or more network performance indexes included in the network slice requirement information, a relationship among each network performance index in each network slice subnet instance, and estimated capability information sent by each network slice subnet management device. The target network slice subnet requirement information may be the above-mentioned slicep profile. The target network slicing subnet requirement information is used for creating target network slicing subnet instances in the N network slicing subnet instances. The target network chippings subnet requirement information includes one or more network performance metrics that require that the target network chippings subnet instance should reach.
In this embodiment, when the network slice management device generates the target network slice subnet requirement information, not only the network slice requirement information and the static capability information but also the dynamic capability information are considered, that is, the optimal value and the actual value which can be reached by one or more network performance indexes of the corresponding network slice subnet instance are considered, so that the generated target network slice subnet requirement information is more reliable.
S403, the network slice management device sends first indication information to the network slice subnet management device, wherein the first indication information indicates the network slice subnet management device to create a target network slice subnet instance based on target network slice subnet requirement information.
After the network slice management device generates the target network slice subnet requirement information, the network slice subnet management device is instructed to create a target network slice subnet instance based on the target network slice subnet requirement information.
For example, in fig. 4, the network slice management apparatus instructs the network slice subnet management apparatus 1 to create a first target network slice subnet instance based on the first target network slice subnet requirement information, and the network slice management apparatus instructs the network slice subnet management apparatus 2 to create a second target network slice subnet instance based on the second target network slice subnet requirement information. Accordingly, the network slice subnet management device 1 and the network slice subnet management device 2 respectively receive the instruction.
The network slicing subnet management device 1 creates a first network slicing subnet instance on the physical network based on the above-described first target network slicing subnet requirement information, and the network slicing subnet management device 2 creates a second network slicing subnet instance on the physical network based on the above-described second target network slicing subnet requirement information.
According to the network management method provided by the embodiment of the application, the network slicing management equipment generates the target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set, and instructs the network slicing subnet management equipment to create the target network slicing subnet instance based on the target network slicing subnet requirement information, so that the success rate of creating the network slicing subnet instance is improved.
Fig. 5 is a schematic flow chart of another network management method according to an embodiment of the present application. The method is used for managing the network slice instance by the network slice management equipment, wherein the network slice instance has N network slice subnet instances to be created, and N is more than or equal to 2. In this embodiment, n=2. Illustratively, the method may include the steps of:
s501. the network slice management apparatus transmits capability query requests to the respective network slice subnet management apparatuses (2 network slice subnet management apparatuses are illustrated in the figure: network slice subnet management apparatus 1 and network slice subnet management apparatus 2), respectively.
Accordingly, the network slice subnet management device 1 and the network slice subnet management device 2 respectively receive the capability query request.
Illustratively, the capability query request includes: index list < index name >. Wherein the index list includes index names of one or more network performance indexes. The index names may be 'delay', 'resolution', 'throughput', 'coverage', 'energy', etc.
Unlike step S301, in this embodiment, the capability query request further includes an associated information reporting instruction.
In one implementation, the association information reporting indication is used to indicate whether each network slice subnet management device carries one or more association information in the capability query feedback. Wherein each association information is used to indicate an association relationship between two or more network performance indicators of each network slice subnet instance. For example, the association information reporting instruction may be 1 bit, and when the value of the association information reporting instruction is "1", the association information reporting instruction indicates "true" (carrying association information); when the value is "0", it indicates "no" (no associated information is carried). Or, when the value is "0", it indicates "yes" (carrying associated information); when the value is "1", it indicates "no" (no associated information is carried).
In another implementation, the association information reporting instruction is used for indicating whether each network slice subnet management device carries one or more association information and reporting modes in the capability query feedback. The reporting mode may include reporting in a form mode, reporting in a formula mode, reporting in a piecewise function mode, and the like. Assuming that the reporting modes include the three modes, the reporting instruction of the associated information can be 2 bits, and when the value of the reporting instruction is '00', the reporting instruction indicates that 'no (false)' does not carry associated information; when the value is "01", the table is indicated (the associated information is reported in a table mode); when the value is 10, the formula is expressed (the associated information is reported in a formula manner); when the value is "11", it indicates "segmental function" (the associated information is reported in a piecewise function manner). The foregoing values and their corresponding meanings are merely examples, and the present application is not limited thereto.
S502, after receiving the capability query request, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively evaluate the respective optimal values which can be achieved by the corresponding network slicing subnet instances on the indexes, and acquire one or more association relations among the network performance indexes in the network slicing subnet instances.
In this embodiment, the estimated capability information includes static capability information and dynamic capability information of the corresponding network slice subnet instance. Wherein the static capability information indicates an optimal value that can be reached by one or more network performance indicators of the target network slice subnet instance, respectively. The dynamic capability information indicates the association relation among a plurality of network performance indexes of the corresponding network slicing subnet instance, and based on the association relation among the plurality of network performance indexes, the actual values which can be respectively reached by the plurality of network performance indexes can be obtained.
After each network slicing subnet management device receives the capability query request, the network slicing subnet management device evaluates the optimal values which can be respectively reached by each corresponding network slicing subnet instance on each index. For example, in the network slicing subnet example corresponding to the network slicing subnet management device 1, the time delay can reach 50ms at the minimum; the highest reliability can reach 99.999%; throughput can reach up to 100Mbps. The above-mentioned optimum values do not take into account the interaction between the indices.
There is a correlation between multiple network performance indexes, and the correlation is determined by the actual situation of the network slicing subnet instance (for example, cell algorithm switch, number of base stations, base station position, user plane function (user plane function, UPF) network element position, number of core network functions, etc., which are configurable by the network manager), and is a quantitative description of the interaction between multiple network performance indexes. Thus, each network slice subnet management device also obtains one or more associations between the plurality of network performance indicators in the network slice subnet instance. Each association information is used to indicate an association between two or more network performance indicators in each network slice subnet instance. For example, the network performance index includes latency, reliability, throughput, then the plurality of associations includes an association between latency and reliability, an association between latency, reliability and throughput, and so on. Based on the one or more association relationships, actual values respectively achievable by the plurality of network performance indexes can be obtained.
S503, the network slice subnet management device 1 and the network slice subnet management device 2 respectively send capability query feedback to the network slice management device.
The capability query feedback includes estimated capability information for the target network chip subnet instance. Illustratively, the capability query feedback includes: capability information list < index name, capability value >, one or more associations. The estimated capability information sent by the network slice subnet management device 1 and the network slice subnet management device 2 respectively form an estimated capability information set.
Wherein, the index name is consistent with the index name in the capability query request of step S501; the capability value indicates an optimal value that the network slice subnet instance can reach on each index separately.
For example, the capability information list may be [ < 'delay',50ms >, < 'reliability',99.999% >, and < 'throughput',100Mbps > ], which indicates that the delay is as low as 50ms, the reliability is as high as 99.999%, and the throughput is as high as 100Mbps in the configuration of each optimal network chip subnet instance.
Unlike step S303, the capability query feedback further includes one or more of the above-mentioned associations. The reporting mode of the association relationship is the reporting mode indicated in the association information reporting instruction in step S501.
In one implementation, the reporting mode is a tabular reporting mode. Assume that the network slice requirement information includes the following 3 network performance indicators: the association between the 3 network performance indicators is shown in table 1 below:
TABLE 1
| Time delay (Unit: ms) | Reliability (unit:%) | Throughput (Unit: mbps) |
| 200 | 99.9999 | 100 |
| 100 | 99.999 | 80 |
| 50 | 99.9 | 50 |
Table 1 records the actual values of 3 network performance indicators for each network slice subnet instance in actual case.
As can be seen from table 1, the reliability was 99.9999% and the throughput was 100Mbps at a time delay of 200 ms; the reliability is 99.999% and the throughput is 80Mbps when the time delay is 100 ms; the reliability is 99.9% with a 50ms delay and the throughput is 50Mbps. It can be seen that the latency, reliability, throughput are interrelated.
In another implementation, the reporting mode is formula reporting. The formula is to fit the actual values of 2 network performance indexes under the actual condition of each network slicing subnet example, and express the association relation between the 2 network performance indexes by using a mathematical formula. For example, the network slice requirement information includes the following 2 network performance indicators: the association relation of time delay and reliability is as follows: redundancy=99.9+ (delay-50) ×10 (-3) ×1-10 (- (delay-50)/10))).
In yet another implementation, the reporting mode is piecewise function reporting. For example, the network slice requirement information includes the following 2 network performance indicators: the association relation of time delay and reliability is as follows: through=100, delay > =200; through=100- (200-delay) ×0.2, 100< =delay <200.
S504, the network slice management equipment generates target network slice subnet requirement information based on the network slice requirement information, the optimal values which can be respectively reached by the corresponding network slice subnet examples on each index and the association relation.
Specifically, the network slicing management device decomposes the network slicing requirement according to the network slicing requirement information, the relation among each network performance index in each network slicing subnet instance, the optimal value which can be respectively achieved by each network slicing subnet instance on each index and one or more associated information, and obtains target network slicing subnet requirement information.
The network slice management device decomposes the network slice requirement according to the network slice requirement information, the relationship between each network performance index in each network slice subnet instance, and the optimal values that each network slice subnet instance can reach on each index, which can be described in the above steps S304 and S402. The embodiment further decomposes the network slicing requirements according to one or more associated information reported by each network slicing subnet management device to generate target network slicing subnet requirement information.
Generating target network slicing subnet requirement information according to the association information, wherein the target network slicing subnet requirement information comprises the following two implementation modes:
1) Target network slicing subnet requirement information pre-verification. For example, the network slice subnet management device 1 reports the mathematical expression of the association information among the delay, the reliability and the throughput, and the network slice management device allocates the delay of 50ms, the reliability of 99.999% and the throughput of 80Mbps to the network slice subnet instance 1. And then the mathematical expression reported by the network slicing subnet management device 2 is used for checking the rationality of the configuration, and the reliability of the network slicing subnet example 1 can only reach 99.9 percent and the throughput rate can only reach 50Mbps when the time delay reaches 50 ms. The network slice management device modifies the network slice subnet requirement information of the network slice subnet instance 1, for example, to appropriately increase the delay index of the network slice subnet instance 1 and decrease the delay index of other network slice subnet instances.
2) And optimizing the target network slicing subnet requirement information. For example, the network slice management device synthesizes mathematical expressions of the association information among the time delay, the reliability and the throughput reported by each network slice subnet management device, and directly obtains the target network slice subnet requirement information by utilizing a tool for solving the optimization problem.
The generation process of the target network slicing subnet requirement information only needs a small amount of trial and error. Taking the time delay and reliability index as an example, if the time delay index of a certain network slicing subnet example is not achieved, the time delay threshold value is increased in the next process of generating the target network slicing subnet requirement information, and meanwhile, the reliability threshold value can be increased according to the associated information of the time delay and the reliability, so that the probability that the generated target network slicing subnet requirement information is accepted by the network slicing subnet example is higher.
And adding an associated information reporting instruction in the capability query, adding one or more associated information in the capability query feedback, and combining the target network slicing subnet requirement information generated by the one or more associated information by the network slicing management equipment, so that the feasibility is higher. The time required for generating the target network slicing subnet requirement information can be reduced, and the consumption of system resources of each network slicing subnet management device can be reduced.
S505, the network slice management device sends a network slice subnet instance creation request to the network slice subnet management device 1 and the network slice subnet management device 2 respectively.
Wherein the network slice subnet instance creation request is used for instructing the network slice subnet management device 1, the network slice subnet management device 2 to create the target network slice subnet instance based on the respective target network slice subnet requirement information. The network slice subnet instance creation request includes target network slice subnet requirement information.
S506, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively create respective network slicing subnet instances based on the target network slicing subnet requirement information.
The network slicing subnet management device 1 and the network slicing subnet management device 2 execute a network slicing subnet instance creation flow according to the network slicing subnet instance creation request, respectively. Illustratively, the network slicing subnet management device 1 creates a first network slicing subnet instance based on the first target network slicing subnet requirement information; the network slice subnet management device 2 creates a second network slice subnet instance based on the second target network slice subnet requirement information.
S507, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance creation feedback to the network slicing subnet management device.
Wherein the network slice subnet instance creation feedback can include an identification. Wherein the identification may be 1 bit. When the 1 bit value is 1, the method is used for indicating that the network slicing subnet instance is successfully created; and when the 1 bit value is 0, the method is used for indicating that the creation of the network slice subnet instance fails. Or when the 1 bit value is 0, the method is used for indicating that the network slicing subnet instance is successfully created; and when the 1 bit value is 1, the method is used for indicating that the creation of the network slice subnet instance fails.
According to the network management method provided by the embodiment of the application, the network slicing management equipment acquires the optimal values which can be respectively reached by one or more network performance indexes of each network slicing subnet instance and the association relation among a plurality of network performance indexes reported by each network slicing subnet management equipment, and the actual values which can be respectively reached by one or more network performance indexes of the network slicing subnet instance can be obtained based on the association information, so that the target network slicing subnet requirement information is generated according to the optimal values and the association relation, the target network slicing subnet requirement information is sent to the network slicing subnet management equipment, the network slicing subnet instance is created by the network slicing subnet management equipment according to the target network slicing subnet requirement information, and the success rate of creating the network slicing subnet instance is improved.
Fig. 6 is a schematic flow chart of another network management method according to an embodiment of the present application. The method is used for managing the network slice instance by the network slice management equipment, wherein the network slice instance has N network slice subnet instances to be created, and N is more than or equal to 2. In this embodiment, n=2. Illustratively, the method may include the steps of:
s601. the network slice management apparatus transmits capability query requests to respective network slice subnet management apparatuses (2 network slice subnet management apparatuses are illustrated in the figure: network slice subnet management apparatus 1 and network slice subnet management apparatus 2), respectively.
The specific implementation of this step may refer to step S301 described above, and will not be described herein.
S602, after the network slicing subnet management device 1 and the network slicing subnet management device 2 receive the capability query request, static capability information of corresponding network slicing subnet instances is respectively obtained.
Illustratively, the static capability information indicates an optimal value that can be reached by one or more network performance indicators of the corresponding network slice subnet instance, respectively. The network slice subnet management device 1 and the network slice subnet management device 2 respectively evaluate the optimal values respectively achievable by the respective corresponding network slice subnet instances on the respective indexes.
The specific implementation of this step may refer to step S302 described above, and will not be described herein.
S603, the network slice subnet management device 1 and the network slice subnet management device 2 respectively send capability query feedback to the network slice management device.
The specific implementation of this step may refer to step S303, which is not described herein.
S604, the network slice management equipment generates initial network slice subnet requirement information according to the network slice requirement information and the static capacity information.
Specific implementation of this step may refer to step S304 described above. Since the network slice management apparatus is initial network slice subnet requirement information generated from the network slice requirement information and the static capability information, the feasibility of the initial network slice subnet requirement information is not high.
Alternatively, the network slice management device generates initial network slice subnet requirement information according to the network slice requirement information, the static capability information and the dynamic capability information.
If the network slicing subnet instance is created based on the initial network slicing subnet requirement information, the creation may be successful or may fail.
S605, the network slice management device respectively sends a network slice subnet instance verification request to the network slice subnet management device 1 and the network slice subnet management device 2.
After the network slicing subnet management device generates the target network slicing subnet requirement information, the network slicing subnet instance is created, and each network slicing subnet management device directly creates the network slicing subnet instance on the physical network after receiving the target network slicing subnet requirement information. If the reliability of the target network slicing subnet needs is low, some network slicing subnet instances cannot meet the network slicing subnet needs, and network rollback is performed. In this embodiment, before the network slice management device actually creates a network slice subnet instance, verification of network slice subnet requirement information is performed. Based on the received network slicing subnet requirement information, verifying whether each network slicing subnet instance can meet the respective network slicing subnet requirement.
In a specific implementation, the network slice management device sends a network slice subnet instance verification request to the network slice subnet management device 1 and the network slice subnet management device 2 respectively. Wherein the network slice subnet instance authentication request comprises: an initial network slice subnet requirement information field and an execution (action) field. The initial network slice subnet requirement information field is used to indicate the initial network slice subnet requirement information, which may be the SliceProfile described above. The action field is used to indicate the operations that the network slice management device needs to perform by each network slice subnet management device. The action field may be 1 bit, where the 1 bit is used to indicate "verify" when the value of the 1 bit is "1", that is, indicate that each network slice subnet management device verifies, according to the initial network slice subnet requirement information, whether each network slice subnet instance can achieve the initial network slice subnet requirement; when the 1-bit value is "0", the method is used for indicating "creation (depth)", that is, indicating that each network slice subnet management device creates a network slice subnet instance according to the target network slice subnet requirement information. Or, when the 1-bit value is "0", it is used to indicate "verification"; when the 1-bit value is "1", it is used to indicate "create".
In this validation procedure, the action field is used to indicate "validation".
S606, the network slicing subnet management device 1 and the network slicing subnet management device 2 verify whether the corresponding network slicing subnet instance can meet the respective initial network slicing subnet requirements according to the network slicing subnet instance verification request.
And after the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively receive the network slicing subnet instance verification requests, acquiring initial network slicing subnet requirement information and an action field sent to the network slicing subnet management device and the network slicing subnet management device. And parse out the action field indicates "verify".
The network slice subnet management device 1, the network slice subnet management device 2 can verify whether the respective network slice subnet instance can fulfill the corresponding initial network slice subnet requirement through simulation or mathematical calculation.
S607, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send the verification feedback of the network slicing subnet instance to the network slicing management device.
Accordingly, the network slice management device receives the network slice subnet instance verification feedback sent by the network slice subnet management device 1 and the network slice subnet management device 2 respectively. The network chip subnet instance verification feedback includes a network chip subnet instance verification result.
The network slicing subnet instance verification result is used for indicating whether the network slicing subnet instance of each network slicing subnet management device can meet the initial network slicing subnet requirement corresponding to the network slicing subnet instance in verification methods such as simulation or mathematical calculation and the like. Illustratively, the network slice subnet instance verification result may be a first identification. The first identification may be 1 bit. When the 1 bit value is 1, the method is used for indicating that the network slicing subnet example can reach the corresponding initial network slicing subnet requirement; when the 1-bit value is "0", the method is used for indicating that the network slicing subnet instance cannot achieve the corresponding initial network slicing subnet requirement. Or when the 1-bit value is 0, the method is used for indicating that the network slicing subnet example can reach the corresponding initial network slicing subnet requirement; when the 1-bit value is "1", the method is used for indicating that the network slicing subnet instance cannot achieve the corresponding initial network slicing subnet requirement.
When the verification result of the network slicing subnet instance sent by each network slicing subnet management device indicates that all the verification result indications can reach the initial network slicing subnet requirements corresponding to the network slicing subnet instance, the following step S608 is executed; when the network slicing subnet instance verification result sent by any network slicing subnet management device is used for indicating that the initial network slicing subnet requirement corresponding to the network slicing subnet instance cannot be reached, steps S604 to S607 are continuously executed, and the network slicing subnet management device regenerates the network slicing subnet requirement information according to the network slicing subnet instance verification results sent by the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively, and the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send the regenerated network slicing subnet requirement information. And repeating the process until the network slicing subnet instance verification result sent by each network slicing subnet management device indicates that the regenerated network slicing subnet requirements corresponding to the network slicing subnet instance can be met.
Since the information reported in the capability query feedback of each network slicing subnet management device (the optimal values respectively reached by the corresponding network slicing subnet instances on each index) in the embodiment shown in fig. 3 is insufficient to support the network slicing management device to obtain the target network slicing subnet requirement information acceptable by each target network slicing subnet instance through a small number of attempts. In the embodiment shown in fig. 3, the network slice management device directly sends the generated target network slice subnet requirement information to each network slice subnet management device, and the network slice subnet management device creates a network slice subnet instance on the physical network, which is time-consuming and has a great risk. In this embodiment, the step of verifying the network slicing requirement information helps the network slicing management device to filter out a part of network slicing subnet requirements which may not be achieved by one or more network slicing subnet instances, and each network slicing subnet management device only needs to verify the passing target network slicing subnet requirement information according to the network slicing requirement information, and creates the network slicing subnet instance on the physical network, thereby reducing time consumption, influence on other services on the network and cost of network rollback.
S608, the network slice management device respectively sends a network slice subnet instance creation request to the network slice subnet management device 1 and the network slice subnet management device 2.
And the network slice management equipment acquires the final network slice subnet requirement information as target network slice subnet requirement information through one round or Toront verification.
The network slice management apparatus transmits a network slice subnet instance creation request to the network slice subnet management apparatus 1 and the network slice subnet management apparatus 2, respectively. The network slice subnet instance creation request includes the target network slice subnet requirement information and the action field. The target network slice subnet requirement information indicates a creation requirement of each network slice subnet instance, which may be the above-mentioned SliceProfile. Wherein the value of the action field is used to indicate "create".
S609, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively create respective network slicing subnet instances based on respective target network slicing subnet requirement information.
The network slicing subnet management device 1 and the network slicing subnet management device 2 execute a network slicing subnet instance creation flow according to the network slicing subnet instance creation request, respectively.
The specific implementation of this step may refer to the above step S306 or S506, and will not be described herein. The method is characterized in that the success rate of creating the network slicing subnet instance is improved through the verification process of the network slicing subnet requirement information.
And S610, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance creation feedback to the network slicing subnet management device.
Wherein the network slice subnet instance creation feedback includes a second identification. Wherein the second identification may be 1 bit. When the 1 bit value is 1, the method is used for indicating that the network slicing subnet instance is successfully created; and when the 1 bit value is 0, the method is used for indicating that the creation of the network slice subnet instance fails. Or when the 1 bit value is 0, the method is used for indicating that the network slicing subnet instance is successfully created; and when the 1 bit value is 1, the method is used for indicating that the creation of the network slice subnet instance fails.
According to the network management method provided by the embodiment of the application, the link for verifying the network slicing subnet requirement information is added before the network slicing subnet management equipment instructs each network slicing subnet management equipment to create the network slicing subnet instance, so that the condition that each network slicing subnet management equipment directly applies the network slicing subnet requirement information to a physical network can be reduced, and the time consumption, the influence on other services on the network and the cost of network rollback are reduced.
Fig. 7 is a schematic flow chart of another network management method according to an embodiment of the present application. The method is used for managing the network slice instance by the network slice management equipment, wherein the network slice instance has N network slice subnet instances to be created, and N is more than or equal to 2. In this embodiment, n=2. Illustratively, the method may include the steps of:
s701. the network slice management apparatus transmits capability query requests to respective network slice subnet management apparatuses (2 network slice subnet management apparatuses are illustrated in the figure: network slice subnet management apparatus 1 and network slice subnet management apparatus 2).
Wherein the capability query request includes: index list < index name >, associated information reporting indication.
The specific implementation of this step may refer to step S501, which is not described herein.
S702, after receiving the capability query request, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively evaluate the respective optimal values which can be achieved by the corresponding network slicing subnet instances on the respective indexes, and acquire one or more association relations among the multiple network performance indexes in the network slicing subnet instances.
The specific implementation of this step may refer to step S502, which is not described herein.
S703, the network slice subnet management device 1 and the network slice subnet management device 2 respectively send capability query feedback to the network slice management device.
The capability query feedback includes: capability information list < index name, capability value >, one or more associations.
The specific implementation of this step may refer to step S503, which is not described herein.
Unlike the embodiment shown in fig. 5, this embodiment also includes the following verification links: steps S704 to S707:
s704, the network slice management equipment generates initial network slice requirement information according to the network slice requirement information and the static capacity information.
S705. the network slice management device sends the network slice subnet instance verification request to the network slice subnet management device 1 and the network slice subnet management device 2 respectively.
S706, the network slicing subnet management device 1 and the network slicing subnet management device 2 verify whether the corresponding network slicing subnet instance can meet the initial network slicing subnet requirement according to the network slicing subnet instance verification request respectively.
S707, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance verification feedback to the network slicing subnet management device.
Accordingly, the network slice management device receives the network slice subnet instance verification feedback sent by the network slice subnet management device 1 and the network slice subnet management device 2 respectively. The network slice subnet instance verification includes a network slice subnet instance verification result.
Specific implementations of S704 to S707 refer to steps S604 to S607. In addition, in step S703, since the network slice subnet management device reports one or more association information, the network slice subnet management device generates network slice subnet requirement information according to the network slice requirement information, the relationship between each network performance index in each network slice subnet instance, the optimal value that each network slice subnet instance can reach on each index, and one or more association information, thereby improving the feasibility of the target network slice subnet requirement information and reducing the number of verification cycles.
In addition, unlike step S607, in step S707, the network slicing subnet instance verification result includes, in addition to the first identifier, a difference between an actual achievement of the plurality of network performance metrics for the corresponding network slicing subnet instance and an initial network slicing subnet requirement for the network slicing subnet instance.
For example, the format of the index achievement status list < index name, difference > may be used to represent the difference between the actual achievement status of the plurality of network performance indices for the corresponding network sliced subnet instance and the initial network sliced subnet requirement for that network sliced subnet instance.
If the first identifier is used to indicate an initial network-slice subnet requirement that can be achieved by the network-slice subnet instance, the phase difference value indicates that the index value in the verification environment is better than the initial network-slice subnet requirement (expressed in positive numbers). If the first indicator indicates that the network-sliced subnet instance cannot meet the initial network-sliced subnet requirement, the phase difference value refers to the amount (expressed in negative numbers) by which the index value is worse than the initial network-sliced subnet requirement under the verification environment.
When the network slicing subnet instance verification result indicates that the initial network slicing subnet requirement of the network slicing subnet instance can be met, the following step S708 is executed; when the network slicing subnet instance verification result is used for indicating that the initial network slicing subnet requirement of the network slicing subnet instance cannot be reached, steps S704-S707 are continuously executed, and the network slicing management device regenerates the network slicing subnet requirement information according to the network slicing subnet instance verification results respectively sent by the network slicing subnet management device 1 and the network slicing subnet management device 2 until the network slicing subnet instance verification result indicates that the regenerated network slicing subnet requirement of the network slicing subnet instance can be reached.
The difference between the actual achievement of the multiple network performance indexes of the corresponding network slicing subnet instance and the initial network slicing subnet requirement of the network slicing subnet instance may further instruct the operation of step S704. For example, the feedback of the network slice requirement information reported by the network slice subnet management device 1 is (0, < delay, -5ms, reliability,0.001%, throughput,5Mbps >), where the value of the first flag is "0" to indicate that the network slice subnet management device 1 does not achieve the initial network slice subnet requirement allocated by the network slice management device, specifically, the actual time delay is 5ms greater than the initial network slice subnet requirement, the reliability is 0.001% greater than the initial network slice subnet requirement, and the throughput is 5Mbps greater than the initial network slice subnet requirement. After obtaining the information, the network slice management device can up-regulate the time delay index of the network slice subnet management device 1 for 5ms in the next allocation scheme.
S708, the network slice management device sends a network slice subnet instance creation request to the network slice subnet management device 1 and the network slice subnet management device 2 respectively.
Specific implementation of this step may refer to step S505 or S608, which will not be described herein.
S709, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively create respective network slicing subnet instances based on respective target network slicing subnet requirement information.
The network slicing subnet management device 1 and the network slicing subnet management device 2 execute a network slicing subnet instance creation flow according to the network slicing subnet instance creation request, respectively.
Specific implementation of this step may refer to step S506 or S609, which will not be described herein.
S710, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance creation feedback to the network slicing subnet management device.
Specific implementation of this step may refer to step S507 or S610, and will not be described herein.
According to the network management method provided by the embodiment of the application, the network slicing management equipment acquires the optimal values which can be respectively reached by one or more network performance indexes of each network slicing subnet instance and the association relation among a plurality of network performance indexes reported by each network slicing subnet management equipment, and the actual values which can be respectively reached by one or more network performance indexes of the network slicing subnet instance can be obtained based on the association information, so that the target network slicing subnet requirement information is generated according to the optimal values and the association relation, the target network slicing subnet requirement information is sent to the network slicing subnet management equipment, the network slicing subnet instance is created by the network slicing subnet management equipment according to the target network slicing subnet requirement information, and the success rate of creating the network slicing subnet instance is improved;
The link for verifying the network slicing subnet requirement information is added before the network slicing subnet management equipment instructs each network slicing subnet management equipment to create the network slicing subnet instance, so that the condition that each network slicing subnet management equipment directly uses the network slicing subnet requirement information for a physical network can be reduced, and the time consumption, the influence on other services on the network and the cost of network rollback are reduced;
and the verification feedback of the network slicing sub-network instance also comprises an index achievement situation, the network slicing management equipment combines the index achievement situation with the associated information to regenerate the target network slicing sub-network requirement information, so that the cycle times of verifying the network slicing sub-network requirement information can be further reduced, the time required for generating the target network slicing sub-network requirement information is further reduced, and the consumption of system resources of each network slicing sub-network instance is reduced.
Fig. 8 is a schematic flow chart of another network management method according to an embodiment of the present application. The method is used for managing the network slice instance by the network slice management equipment, wherein the network slice instance has N network slice subnet instances to be created, and N is more than or equal to 2. In this embodiment, n=2. Illustratively, the method may include the steps of:
S801, network slice management equipment acquires network slice demand information.
The network slice requirement information may be ServiceProfile.
S802, the network slice management equipment analyzes SLA and service characteristic information from the network slice demand information.
The network slice management equipment analyzes SLA and service characteristic information from the network slice demand information. The traffic characteristic information may affect various network performance metrics of the network slice subnet instance. Illustratively, the traffic characteristic information includes packet size, packet interval, user location, etc. The service characteristic information can influence the capability of the network slicing subnet example, for example, the size of a data packet can influence the packet loss rate of the network slicing subnet example; the packet interval affects the scheduling period of the network slice subnet instance. The packet size and packet interval ultimately are reflected in the latency and packet reliability of the network slice subnet instance. If the user positions are different, the coverage intensity is different, and the throughput rate of the network slicing subnet example is affected.
S803. the network slice management apparatus transmits the capability query request to each network slice subnet management apparatus (2 network slice subnet management apparatuses are illustrated in the figure: network slice subnet management apparatus 1 and network slice subnet management apparatus 2), respectively.
Specific implementation of this step may refer to steps S501, S601 or S701 described above. The capability query request may include, instead, the SLA and business feature information described above.
S804, after receiving the capability query request, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively evaluate the respective optimal values which can be achieved by the corresponding network slicing subnet instances on the respective indexes, and acquire one or more association relations among the multiple network performance indexes in the network slicing subnet instances.
Specific implementation of this step may refer to steps S502, S602 or S702 described above. In other words, after each network slice subnet management device receives the capability query request, a service model can be built according to the service feature information. The business model may be used as an input to the capability assessment such that the results of the capability assessment more closely match the actual performance. And the capability evaluation outputs the optimal values which can be respectively achieved by the network slicing subnet examples on each index, and acquires one or more association relations among a plurality of network performance indexes in the network slicing subnet examples. The embodiment can use the service model consistent with the actual service, and can improve the accuracy of capability assessment.
S805. the network slice subnet management device 1 and the network slice subnet management device 2 respectively send capability query feedback to the network slice management device.
Specific implementation of this step may refer to the above steps S503, S603 or S703, and will not be described herein.
S806, the network slice management equipment generates initial network slice requirement information according to the network slice requirement information and the static capacity information.
Specific implementation of this step may refer to step S604 or S704 described above, and will not be described herein.
S807, the network slice management device sends a network slice subnet instance verification request to the network slice subnet management device 1 and the network slice subnet management device 2 respectively.
Specific implementation of this step may refer to step S605 or S705 described above, and will not be described here again.
S808, the network slicing subnet management device 1 and the network slicing subnet management device 2 verify whether the corresponding network slicing subnet instance can meet the respective initial network slicing subnet requirements according to the network slicing subnet instance verification request.
Specific implementation of this step may refer to step S606 or S706, which are not described herein.
S809, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance verification feedback to the network slicing subnet management device. The network chip subnet instance verification feedback includes a network chip subnet instance verification result.
Accordingly, the network slice management device receives the network slice subnet instance verification results sent by the network slice subnet management device 1 and the network slice subnet management device 2 respectively.
Specific implementation of this step may refer to step S607 or S707 described above, and will not be described herein.
When the network slicing subnet instance verification result indicates that the initial network slicing subnet requirement of the network slicing subnet instance can be met, the following step S809 is executed; when the network slicing subnet instance verification result is used for indicating that the initial network slicing subnet requirement of the network slicing subnet instance cannot be reached, the steps S805 to S808 are continuously executed, and the network slicing management device regenerates the network slicing subnet requirement information according to the network slicing subnet instance verification results respectively sent by the network slicing subnet management device 1 and the network slicing subnet management device 2 until the network slicing subnet instance verification result indicates that the regenerated network slicing subnet requirement of the network slicing subnet instance can be reached.
S810, the network slice management device respectively sends a network slice subnet instance creation request to the network slice subnet management device 1 and the network slice subnet management device 2.
Specific implementation of this step may refer to the above steps S505, S608 or S708, and will not be described herein.
S811, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively create respective network slicing subnet instances based on respective target network slicing subnet requirement information.
Specific implementation of this step may refer to the above steps S506, S609 or S709, which are not described herein.
And S812, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance creation feedback to the network slicing subnet management device.
Specific implementation of this step may refer to the above steps S507, S610 or S710, and will not be described herein.
According to the network management method provided by the embodiment of the application, before the capacity of each network slicing subnet management device is evaluated, the network slicing subnet management device sends the service characteristic information to each network slicing subnet management device, and the service characteristic information can help each network slicing subnet management device to establish a service model, so that each network slicing subnet management device considers the actual service condition when performing the capacity evaluation, the accuracy of the capacity evaluation of each network slicing subnet management device is improved, the feasibility of the network slicing subnet demand information generated by the network slicing management device is further improved, the cycle times of verifying the network slicing subnet demand information is further reduced, the time required for generating the target network slicing subnet demand information is further reduced, and the consumption of system resources of each network slicing subnet management device is reduced.
Fig. 9 is a schematic flow chart of another network management method according to an embodiment of the present application. Illustratively, the method may include the steps of:
s901. the network slice management device sends capability query requests to the respective network slice subnet management devices (2 network slice subnet management devices are illustrated in the figure: network slice subnet management device 1 and network slice subnet management device 2), respectively.
Specific implementation of this step may refer to steps S501, S601 or S701 described above. The capability query request, differently, includes indication information and network slice requirement information. The indication information is used for indicating whether each network slice subnet management device needs to analyze the service characteristic information required by service modeling from the network slice requirement information. The indication may be 1 bit. When the 1 bit value is 1, the 1 bit value is used for indicating each network slicing subnet management device to analyze service characteristic information required by service modeling from the network slicing requirement information; when the 1 bit value is "0", the method is used for indicating that each network slice subnet management device does not need to analyze the service characteristic information required by service modeling from the network slice requirement information. Or when the 1 bit value is 0, the 1 bit value is used for indicating each network slice subnet management device to analyze the service characteristic information required by service modeling from the network slice requirement information; when the 1 bit is 1, the method is used for indicating that each network slice subnet management device does not need to analyze the service characteristic information required by service modeling from the network slice requirement information. The network slice requirement information may be ServiceProfile.
S902, analyzing SLA and service characteristic information from the network slicing requirement information according to the indication information by the network slicing subnet management device 1 and the network slicing subnet management device 2.
When the indication information is used for indicating each network slice subnet management device to analyze the service characteristic information required by service modeling from the network slice requirement information, the network slice subnet management device 1 and the network slice subnet management device 2 analyze the service characteristic information from the network slice requirement information according to the indication information respectively.
The traffic characteristic information may affect various network performance metrics of the network slice subnet instance. Illustratively, the traffic characteristic information includes packet size, packet interval, user location, etc. The service characteristic information can influence the capability of the network slicing subnet example, for example, the size of a data packet can influence the packet loss rate of the network slicing subnet example; the packet interval affects the scheduling period of the network slice subnet instance. The packet size and packet interval ultimately are reflected in the latency and packet reliability of the network slice subnet instance. If the user positions are different, the coverage intensity is different, and the throughput rate of the network slicing subnet example is affected.
S903, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively establish a service model according to the service characteristic information.
After each network slice subnet management device receives the capability query request message, a service model can be established according to the service characteristic information. The business model may be used as an input to the capability assessment such that the results of the capability assessment more closely match the actual performance. And the capability evaluation outputs the optimal value which can be achieved by the network slicing subnet instance on each index, and acquires one or more association relations among a plurality of network performance indexes in the network slicing subnet instance. The embodiment can use the service model consistent with the actual service, and can improve the accuracy of capability assessment.
S904, the network slicing subnet management device 1 and the network slicing subnet management device 2 evaluate the respective optimal values of the corresponding network slicing subnet instances on each index based on the service model, and acquire one or more association relations among the network performance indexes in the network slicing subnet instances.
Specific implementation of this step may refer to step S804 described above.
S905. the network slice subnet management device 1 and the network slice subnet management device 2 respectively send capability query feedback to the network slice management device.
Specific implementation of this step may refer to the above steps S503, S603, S703 or S804, and will not be described herein.
S906, the network slice management equipment generates initial network slice requirement information according to the network slice requirement information and the static capacity information.
Specific implementation of this step may refer to the above steps S604, S704 or S806, and will not be described herein.
S907, the network slice management device respectively sends network slice subnet instance verification requests to the network slice subnet management device 1 and the network slice subnet management device 2.
Specific implementation of this step may refer to the above steps S605, S705 or S807, and will not be described herein.
S908, the network slicing subnet management device 1 and the network slicing subnet management device 2 verify whether the corresponding network slicing subnet instance can meet the initial network slicing subnet requirement according to the network slicing subnet instance verification request respectively.
Specific implementation of this step may refer to the above steps S606, S706 or S807, and will not be described herein.
S909, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance verification feedback to the network slicing subnet management device. The network chip subnet instance verification feedback includes a network chip subnet instance verification result.
Accordingly, the network slice management device receives the network slice subnet instance verification feedback sent by the network slice subnet management device 1 and the network slice subnet management device 2 respectively.
Specific implementation of this step may refer to the above steps S607, S707 or S808, and will not be described herein.
When the network slicing subnet instance verification result indicates that the initial network slicing subnet requirement of the network slicing subnet instance can be met, the following step S910 is executed; when the network slicing subnet instance verification result is used for indicating that the initial network slicing subnet requirement of the network slicing subnet instance cannot be reached, steps S906 to S909 are continuously executed, and the network slicing management device regenerates the network slicing subnet requirement information according to the network slicing subnet instance verification results respectively sent by the network slicing subnet management device 1 and the network slicing subnet management device 2 until the network slicing subnet instance verification result indicates that the regenerated network slicing subnet requirement of the network slicing subnet instance can be reached.
S910, the network slice management device sends a network slice subnet instance creation request to the network slice subnet management device 1 and the network slice subnet management device 2 respectively.
Specific implementation of this step may refer to the above steps S505, S608, S708 or S809, and will not be described herein.
S911. the network slice subnet management device 1 and the network slice subnet management device 2 create respective network slice subnet instances based on the respective target network slice subnet requirement information.
The network slicing subnet management device 1 and the network slicing subnet management device 2 execute a network slicing subnet instance creation flow according to the network slicing subnet instance creation request, respectively.
Specific implementation of this step may refer to the above steps S506, S609, S709 or S810, and will not be described herein.
S912, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively send network slicing subnet instance creation feedback to the network slicing subnet management device.
Specific implementation of this step may refer to the above steps S507, S610, S710 or S811, and will not be described herein.
According to the network management method provided by the embodiment of the application, before the capacity evaluation of each network slicing subnet management device, the service characteristic information is analyzed from the service requirement information sent by the network slicing subnet management device, and the service characteristic information can help to establish a service model, so that each network slicing subnet management device considers the actual service condition during the capacity evaluation, the accuracy of the capacity evaluation of each network slicing subnet management device is improved, the feasibility of the target network slicing subnet requirement information generated by the network slicing management device is further improved, the cycle times of verifying the target network slicing subnet requirement information is further reduced, the time required for generating the target network slicing subnet requirement information is further reduced, and the consumption of system resources of each network slicing subnet management device is reduced.
Fig. 10 is a schematic flow chart of another network management method according to an embodiment of the present application. Illustratively, the method may include the steps of:
s1001, network slice management equipment sends network slice requirement information to a network digital twin body.
Illustratively, the network slice management device sends a query request to the network digital twin. Accordingly, the network digital twin receives the query request. The query request carries the network slice requirement information.
Because the network digital twin is a digital twin of an end-to-end network, is a mapping or mirror image of a physical network in a digital world, and ensures that the network digital twin is kept highly consistent with the state and behavior rules of the physical network through real-time data interaction with the physical network, if the network digital twin generates the requirement information of the target network slicing subnet, the network digital twin has high feasibility, the time required for verifying the requirement information of the target network slicing subnet on the physical network can be greatly reduced, the consumption of system resources of each network slicing subnet instance is reduced, and the influence and the rollback cost on other services are reduced.
Thus, in this embodiment, the network slice management device sends a query request to the network digital twin. The query request is used for requesting to query the target network slice requirement information generated by the network digital twin.
S1002, the network digital twin body respectively acquires estimated capability information of a network slicing subnet instance from at least two network slicing subnet management mirror devices according to network slicing requirement information, and at least two pieces of estimated capability information are obtained.
After the network digital twin body receives the network slice demand information sent by the network slice management equipment, according to the network slice demand information, the estimated capacity information of one network slice subnet instance is respectively obtained from at least two network slice subnet management mirror image equipment, and at least two pieces of estimated capacity information are obtained.
The network slice subnet management mirror device is a mirror image of the network slice subnet management device in the above embodiment. The optimal values respectively achievable by the one or more network performance indexes of one network slicing subnet instance and the actual values respectively achievable by the one or more network performance indexes of the corresponding network slicing subnet instance can be respectively obtained from at least two network slicing subnet management mirror devices.
Specifically, reference may be made to steps S502, S602, S702, S804 or S904 in the above embodiments.
S1003, the network digital twin body generates target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set.
And simulating and generating target network slicing subnet requirement information by the network digital twin body according to the received network slicing requirement information and the acquired estimated capability information set.
For example, the network digital twin may simulate generating one or more target network slice subnet requirement information.
Because the network digital twin is based on better computing resources and modeling methods, the signaling interaction in the network digital twin is faster and simpler than that of an actual network, and the efficiency of simulation evaluation can be improved.
S1004, the network digital twin body sends the target network slicing subnet requirement information to the network slicing management device.
Illustratively, the network digital twin transmits a query response to the network slice management device.
Accordingly, the network slice management device receives the query response.
The query response comprises the target network slicing subnet requirement information.
The network slice management device selects 1 target network slice subnet requirement information from one or more target network slice subnet requirement information fed back by the network digital twin body.
If the number of the target network slicing subnet requirement information fed back by the network digital twin body is 1, the network slicing management equipment selects the target network slicing subnet requirement information; and if the number of the target network slicing subnet requirement information fed back by the network digital twin body is greater than 1, selecting one target network slicing subnet requirement information from the target network slicing subnet requirement information. The selection method may be to randomly pick or to achieve the minimum cost of network slicing requirements, etc.
Illustratively, the selection principle is that the cost of achieving the network slice requirement information is minimum, for example, the time delays allocated to the network slice subnet management device 1 and the network slice subnet management device 2 in the scheme 1 are respectively 50ms and 50ms; the delays assigned to the network slicing subnet management device 1 and the network slicing subnet management device 2 in the scheme 2 are 70ms and 30ms, respectively, and the network slicing subnet management device 1 achieves a low delay at a much larger cost than the network slicing subnet management device 2. At this point, option 2 may be selected taking into account the overall cost of reaching the network slicing requirements.
S1005, the network slice management device respectively sends a network slice subnet instance creation request to the network slice subnet management device 1 and the network slice subnet management device 2.
Specific implementation of this step may refer to steps S505, S608, S708, S810 or S910 in the above embodiments, which are not described herein.
S1006, the network slicing subnet management device 1 and the network slicing subnet management device 2 respectively create respective network slicing subnet instances based on respective target network slicing subnet requirement information.
The network slicing subnet management device 1 and the network slicing subnet management device 2 execute a network slicing subnet instance creation flow according to the network slicing subnet instance creation request, respectively.
Specific implementation of this step may refer to steps S506, S609, S709, S811 or S911 in the above embodiments, and will not be described herein.
S1007. the network slice subnet management device 1 and the network slice subnet management device 2 send the network slice subnet instance creation feedback to the network slice subnet management device respectively.
The specific implementation of this step may refer to steps S507, S610, S710, S812 or S912 in the above embodiments, which are not described herein.
According to the network management method provided by the embodiment of the application, the network slicing management equipment generates the highly reliable target network slicing subnet requirement information by adopting the network digital twin body, so that the network slicing management equipment is helped to acquire more accurate target network slicing subnet requirement information, the trial-and-error times of the target network slicing subnet requirement information are further reduced, the system resource consumption of each network slicing subnet management equipment is saved, and the risk of network problems is reduced.
The various embodiments described above may be implemented independently or in combination, as the application is not limited in this regard.
It will be appreciated that, in order to implement the functions in the above embodiments, the network management device includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and method steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application scenario and design constraints imposed on the solution.
Fig. 11 to 13 are schematic structural diagrams of a possible network management device according to an embodiment of the present application. These network management devices may be used to implement the functions of the network slice management device, the network digital twin, and the network slice subnet management device in the above method embodiments, so that the beneficial effects of the above method embodiments may also be implemented.
As shown in fig. 11, a schematic structural diagram of a network management device 1100 according to an embodiment of the present application is provided, where the network management device 1100 is configured to implement the functions of the network slice management apparatus/network digital twin in the method embodiments shown in fig. 3-10.
The network management device 1100 is configured to manage a network slice instance, where the network slice instance has N network slice subnet instances to be created, and N is greater than or equal to 2, and the network management device 1100 includes: an obtaining unit 1101, configured to obtain, according to network slicing requirement information, an estimated capability information set, where the estimated capability information set includes at least two pieces of estimated capability information corresponding to different network slicing subnet instances in the N network slicing subnet instances, where each piece of estimated capability information includes static capability information and dynamic capability information of the corresponding network slicing subnet instance, where the static capability information indicates an optimal value that can be reached by one or more network performance indexes of the corresponding network slicing subnet instance, and the dynamic capability information indicates an actual value that can be reached by one or more network performance indexes of the corresponding network slicing subnet instance, respectively; a first generating unit 1102, configured to generate target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set, where the target network slicing subnet requirement information is used to create a target network slicing subnet instance in the N network slicing subnet instances; and a first sending unit 1103, configured to send first indication information to a network slicing subnet management device, where the first indication information indicates the network slicing subnet management device to create the target network slicing subnet instance based on the target network slicing subnet requirement information.
Optionally, the network management device is a network slice management device, and the obtaining unit 1101 is configured to obtain, from at least two network slice subnet management devices, estimated capability information of one network slice subnet instance of the N network slice subnet instances, respectively, to obtain the at least two pieces of estimated capability information.
Optionally, the network management device is a network digital twin; the network management apparatus further includes (not shown in the figure): a first receiving unit configured to receive the network slice requirement information from a network slice management apparatus; the obtaining unit is configured to obtain estimated capability information of one network slicing subnet instance of the N network slicing subnet instances from at least two network slicing subnet management mirroring devices according to the network slicing requirement information, so as to obtain the at least two pieces of estimated capability information; the first indication information comprises the target network slicing subnet requirement information.
Optionally, the obtaining unit 1101 includes: a second sending unit 1101a, configured to send capability query requests to the at least two network slice subnet management devices respectively; and a second receiving unit 1101b, configured to receive a capability query feedback from the at least two network slice subnet management devices, respectively, where the capability query feedback includes estimated capability information of one network slice subnet instance.
Optionally, the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the corresponding network slice subnet instance, and based on the association relationship between the plurality of network performance indexes, actual values respectively reachable by the plurality of network performance indexes are obtained.
Optionally, the network management device further includes (indicated by a dotted line in the figure): a parsing unit 1104, configured to parse service class protocol and service feature information from the network slice requirement information; the capability query request includes the service level agreement and the service characteristic information.
Optionally, the capability query request includes network slice requirement information and second indication information, where the second indication information is used to indicate parsing of service level agreements and service feature information from the network slice requirement information.
Optionally, the first generating unit 1102 is configured to decompose each network performance index of the one or more network performance indexes in the N network slice subnet instances according to one or more network performance indexes included in the network slice requirement information and the estimated capability information set, to obtain the target network slice subnet requirement information, where the target network slice subnet requirement information includes one or more network performance indexes that the target network slice subnet instance needs to meet.
Optionally, the acquiring unit includes: a second generating unit (not shown in the figure) configured to generate initial network slicing subnet requirement information of different network slicing subnet instances in the N network slicing subnet instances based on the network slicing requirement information and the static capability information; a third sending unit (not shown in the figure) configured to send network slicing subnet instance verification requests to the at least two network slicing subnet management devices, respectively, where the network slicing subnet instance verification requests include initial network slicing subnet requirement information of corresponding network slicing subnet instances; and a third receiving unit (not shown in the figure) configured to receive network slicing subnet instance verification feedback from the at least two network slicing subnet management devices, respectively, where the slicing subnet instance verification feedback includes the dynamic capability information of the corresponding network slicing subnet instance, and the dynamic capability information indicates an achievement result of an initial network slicing subnet requirement of the corresponding network slicing subnet instance.
Optionally, the network slice subnet instance verification feedback further includes a difference between actual achievement of a plurality of network performance metrics for the corresponding network slice subnet instance and the initial network slice subnet requirement.
A more detailed description of the above units may be directly obtained by referring to the related description of the network slice management device/network digital twin in the method embodiment shown in fig. 3 to 10, which is not repeated herein.
As shown in fig. 12, a schematic structural diagram of a network management apparatus 1200 according to an embodiment of the present application is provided, where the network management apparatus 1200 is configured to implement the functions of the network slice subnet management device in the method embodiment shown in fig. 3 to 10.
The device is used for managing a target network slicing subnet instance, the target network slicing subnet instance belongs to one of N network slicing subnet instances to be created in the network slicing instance, and N is more than or equal to 2, and the network management device comprises: a first obtaining unit 1201, configured to obtain estimated capability information of the target network slicing subnet instance, where the estimated capability information includes static capability information and dynamic capability information of the target network slicing subnet instance, the static capability information indicates optimal values that can be reached by one or more network performance indexes of the target network slicing subnet instance, and the dynamic capability information indicates actual values that can be reached by one or more network performance indexes of the target network slicing subnet instance, respectively; a first sending unit 1202, configured to send the estimated capability information to a network slice management device, where the estimated capability information is used to generate target network slice subnet requirement information; a first receiving unit 1203 configured to receive first indication information from the network slice management apparatus, the first indication information indicating that the target network slice subnet instance is created based on the target network slice subnet requirement information; and a creating unit 1204, configured to create the target network slice subnet instance according to the first indication information.
Optionally, the first obtaining unit 1201 includes: a second receiving unit 1201a for receiving a capability query request from the network slice management apparatus; a second obtaining unit 1201b, configured to obtain estimated capability information of the target network slicing subnet instance; and the first sending unit 1202 is configured to send capability query feedback to the network slice management device, where the capability query feedback includes estimated capability information of the target network slice subnet instance.
Optionally, the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the target network slicing subnet instance, and based on the association relationship between the plurality of network performance indexes, actual values respectively reachable by the plurality of network performance indexes are obtained.
Optionally, the capability query request includes a service level protocol and service feature information, and the first obtaining unit 1201 is configured to obtain static capability information of the target network slicing subnet instance based on the service level protocol, and obtain dynamic capability information of the target network slicing subnet instance based on the service level protocol and the service feature information.
Optionally, the capability query request includes network slice requirement information and indication information, where the indication information is used to indicate that service level protocol and service feature information are resolved from the network slice requirement information; the first acquisition unit 1201 includes: a parsing unit (not shown in the figure) configured to parse the service level protocol and the service feature information from the network slice requirement information according to the network slice requirement information and the indication information; and a third obtaining unit (not shown in the figure) configured to obtain static capability information of the target network slicing subnet instance based on the service level agreement, and obtain dynamic capability information of the target network slicing subnet instance based on the service level agreement and the service characteristic information.
Optionally, the first transmitting unit 1202 includes: a third receiving unit (not shown in the figure) for receiving a network slice subnet instance verification request from the network slice management device, the network slice subnet instance verification request including initial network slice subnet requirement information of the target network slice subnet instance; and a second sending unit (not shown in the figure) configured to send a network slicing subnet instance verification feedback to the network slicing management device, where the slicing subnet instance verification feedback includes the dynamic capability information of the target network slicing subnet instance, and the dynamic capability information indicates a result of achievement of an initial network slicing subnet requirement of the target network slicing subnet instance.
The more detailed description of the above units may be directly obtained by referring to the related description of the network slice subnet management device in the method embodiment shown in fig. 3 to fig. 10, and will not be repeated herein.
As shown in fig. 13, the network management apparatus 1300 includes a processor 1301 and an interface circuit 1302. The processor 1301 and the interface circuit 1302 are coupled to each other. It is understood that the interface circuit 1302 may be a transceiver or an input-output interface. Optionally, the network management device 1300 may further include a memory 1303 for storing instructions executed by the processor 1301, or storing input data required for the processor 1301 to execute the instructions, or storing data generated after the processor 1301 executes the instructions.
Processor 1301 is configured to perform the methods of the method embodiments shown in fig. 3-10.
When the network management device is a chip applied to the network slice management device, the chip realizes the function of the network slice management device in the method embodiment. The chip receives information from other modules (such as a radio frequency module or an antenna) in the network slice management device, wherein the information is sent to the network slice management device by the network slice subnet management device or the network digital twin body; alternatively, the chip sends information to other modules (e.g., radio frequency modules or antennas) in the network slice management device, which the network slice management device sends to the network slice subnet management device or the network digital twin.
When the network management device is a chip applied to the network slicing subnet management device, the chip realizes the function of the network slicing subnet management device in the method embodiment. The chip receives information from other modules (such as radio frequency modules or antennas) in the network slice subnet management device, and the information is sent to the network slice subnet management device by the network slice subnet management device or the network digital twin body; alternatively, the chip sends information to other modules (e.g., radio frequency modules or antennas) in the network slice subnet management device that the network slice subnet management device sends to the network slice management device or the network digital twin.
It is to be appreciated that the processor in embodiments of the application may be a central processing unit (central processing unit, CPU), other general purpose processor, digital signal processor (digital signal processor, DSP), application specific integrated circuit (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, transistor logic device, hardware components, or any combination thereof. The general purpose processor may be a microprocessor, but in the alternative, it may be any conventional processor.
The embodiment of the application also provides a network management system, which comprises the network management device in the embodiment.
The embodiment of the present application also provides a computer-readable storage medium having stored thereon a computer program or instructions which, when executed by a processor, perform the method of the above embodiment.
Embodiments of the present application also provide a computer program product which, when executed on a computing device, causes the method of the above embodiments to be performed.
Embodiments of the present application also provide a circuit coupled to a memory, the circuit being used to perform the method shown in the above embodiments. The circuitry may include chip circuitry.
The method steps in the embodiments of the present application may be implemented by hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access memory, flash memory, read only memory, programmable read only memory, erasable programmable read only memory, electrically erasable programmable read only memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a network slice management device/network slice subnet management device. Of course, the processor and the storage medium may reside as discrete components in a network slice management device/network slice subnetwork management device.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, a network device, a user device, or other programmable apparatus. The computer program or instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program or instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center by wired or wireless means. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that integrates one or more available media. The usable medium may be a magnetic medium, e.g., floppy disk, hard disk, tape; but also optical media such as digital video discs; but also semiconductor media such as solid state disks.
In various embodiments of the application, where no special description or logic conflict exists, terms and/or descriptions between the various embodiments are consistent and may reference each other, and features of the various embodiments may be combined to form new embodiments based on their inherent logic.
In the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. In the text description of the present application, the character "/", generally indicates that the associated objects are an or relationship; in the formula of the present application, the character "/" indicates that the front and rear associated objects are a "division" relationship.
It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application. The sequence number of each process does not mean the sequence of the execution sequence, and the execution sequence of each process should be determined according to the function and the internal logic.
Claims (35)
1. A network management method, characterized by being used for managing a network slice instance, where the network slice instance has N network slice subnet instances to be created, and N is greater than or equal to 2, the method includes:
obtaining an estimated capability information set according to network slicing requirement information, wherein the estimated capability information set comprises at least two pieces of estimated capability information corresponding to different network slicing sub-network examples in the N network slicing sub-network examples respectively, each piece of estimated capability information comprises static capability information and dynamic capability information of the corresponding network slicing sub-network example, the static capability information indicates optimal values which can be respectively reached by one or more network performance indexes of the corresponding network slicing sub-network example, and the dynamic capability information indicates actual values which can be respectively reached by one or more network performance indexes of the corresponding network slicing sub-network example;
generating target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set, wherein the target network slicing subnet requirement information is used for creating target network slicing subnet instances in the N network slicing subnet instances;
and sending first indication information to network slicing subnet management equipment, wherein the first indication information indicates the network slicing subnet management equipment to create the target network slicing subnet instance based on the target network slicing subnet requirement information.
2. The method of claim 1, wherein the method is performed by a network slice management device, the obtaining the set of predictive capability information based on network slice demand information, comprising:
and respectively acquiring estimated capability information of one network slicing subnet instance in the N network slicing subnet instances from at least two network slicing subnet management devices to obtain at least two pieces of estimated capability information.
3. The method of claim 1, wherein the method is performed by a network digital twin, and wherein prior to obtaining the set of predictive capability information based on network slice demand information, the method further comprises:
receiving the network slice requirement information from a network slice management device;
the obtaining the estimated capability information set according to the network slice demand information includes:
according to the network slicing requirement information, estimated capability information of one network slicing subnet instance in the N network slicing subnet instances is respectively obtained from at least two network slicing subnet management mirror devices, and at least two pieces of estimated capability information are obtained;
the first indication information comprises the target network slicing subnet requirement information.
4. A method according to claim 2 or 3, wherein the obtaining, from at least two network slice subnet management devices, estimated capability information of one network slice subnet instance, respectively, to obtain the at least two pieces of estimated capability information includes:
respectively sending capability inquiry requests to the at least two network slice subnet management devices;
and respectively receiving a capability query feedback from the at least two network slice subnet management devices, wherein the capability query feedback comprises estimated capability information of one network slice subnet instance.
5. The method according to any one of claims 1-4, wherein the dynamic capability information indicates an association between the plurality of network performance indexes of the corresponding network slice subnet instance, and the actual values respectively achievable by the plurality of network performance indexes are derived based on the association between the plurality of network performance indexes.
6. The method according to claim 4 or 5, characterized in that the method further comprises:
analyzing service grade protocol and service characteristic information from the network slice demand information;
the capability query request includes the service level agreement and the service characteristic information.
7. The method of claim 4 or 5, wherein the capability query request includes network slice requirement information and second indication information, the second indication information being used to indicate parsing of service level agreements and service characteristic information from the network slice requirement information.
8. The method of any of claims 2-7, wherein the generating target network slice subnet requirement information based on the network slice requirement information and the set of pre-estimated capability information comprises:
and decomposing each network performance index of the one or more network performance indexes in the N network slicing sub-network instances according to one or more network performance indexes and the estimated capability information set included in the network slicing requirement information to obtain target network slicing sub-network requirement information, wherein the target network slicing sub-network requirement information comprises one or more network performance indexes which are required to be met by the target network slicing sub-network instance.
9. The method according to any one of claims 2-8, wherein the obtaining, from at least two network slice subnet management devices, the estimated capability information of one network slice subnet instance respectively includes:
Generating initial network slicing subnet requirement information of different network slicing subnet instances in the N network slicing subnet instances based on the network slicing requirement information and the static capacity information;
respectively sending network slicing subnet instance verification requests to the at least two network slicing subnet management devices, wherein the network slicing subnet instance verification requests comprise initial network slicing subnet requirement information of corresponding network slicing subnet instances;
and respectively receiving network slicing subnet instance verification feedback from the at least two network slicing subnet management devices, wherein the slicing subnet instance verification feedback comprises the dynamic capability information of the corresponding network slicing subnet instance, and the dynamic capability information indicates an achievement result of the initial network slicing subnet requirement of the corresponding network slicing subnet instance.
10. The method of claim 9, wherein the network slice subnet instance verification feedback further comprises a difference between actual achievement of a plurality of network performance metrics for the corresponding network slice subnet instance and the initial network slice subnet requirement.
11. The network management method is characterized by being used for managing target network slicing subnet examples, wherein the target network slicing subnet examples belong to one of N network slicing subnet examples to be created in the network slicing examples, and N is more than or equal to 2, and the method comprises the following steps:
Obtaining estimated capability information of the target network slicing subnet instance, wherein the estimated capability information comprises static capability information and dynamic capability information of the target network slicing subnet instance, the static capability information indicates optimal values which can be respectively achieved by one or more network performance indexes of the target network slicing subnet instance, and the dynamic capability information indicates actual values which can be respectively achieved by one or more network performance indexes of the target network slicing subnet instance;
the estimated capability information is sent to network slice management equipment and is used for generating target network slice subnet requirement information;
receiving first indication information from the network slice management device, wherein the first indication information indicates that the target network slice subnet instance is created based on the target network slice subnet requirement information;
and creating the target network slicing subnet instance according to the first indication information.
12. The method of claim 11, wherein the obtaining the estimated capability information of the target network sliced subnet instance comprises:
receiving a capability query request from a network slice management device;
Obtaining estimated capability information of the target network slicing subnet instance;
the sending the estimated capability information to the network slice management device includes:
and sending capability query feedback to the network slice management equipment, wherein the capability query feedback comprises estimated capability information of the target network slice subnet instance.
13. The method according to claim 11 or 12, wherein the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the target network slice subnet instance, and the actual values respectively achievable by the plurality of network performance indexes are derived based on the association relationship between the plurality of network performance indexes.
14. The method according to claim 12 or 13, wherein the capability query request includes service level agreement and service characteristic information, and the obtaining the estimated capability information of the target network slice subnet instance includes:
and acquiring static capability information of the target network slicing subnet instance based on the service level protocol, and acquiring dynamic capability information of the target network slicing subnet instance based on the service level protocol and the service characteristic information.
15. The method according to claim 12 or 13, wherein the capability query request comprises network slice requirement information and indication information, the indication information being used for indicating parsing of service level agreements and service characteristic information from the network slice requirement information;
the obtaining the estimated capability information of the target network slicing subnet example includes:
analyzing the service level protocol and the service characteristic information from the network slice demand information according to the network slice demand information and the indication information;
and acquiring static capability information of the target network slicing subnet instance based on the service level protocol, and acquiring dynamic capability information of the target network slicing subnet instance based on the service level protocol and the service characteristic information.
16. The method of any of claims 11-15, wherein sending the pre-estimated capability information to the network slice management device comprises:
receiving a network slicing subnet instance verification request from the network slicing management device, the network slicing subnet instance verification request including initial network slicing subnet requirement information of the target network slicing subnet instance;
And sending network slicing subnet instance verification feedback to the network slicing management device, wherein the slicing subnet instance verification feedback comprises the dynamic capability information of the target network slicing subnet instance, and the dynamic capability information indicates an achievement result of the initial network slicing subnet requirement of the target network slicing subnet instance.
17. A network management device, for managing a network slice instance, where the network slice instance has N network slice subnet instances to be created, and N is greater than or equal to 2, the network management device includes:
the network slicing device comprises an acquisition unit, a prediction capability information set and a dynamic capability information acquisition unit, wherein the acquisition unit is used for acquiring a prediction capability information set according to network slicing requirement information, the prediction capability information set comprises at least two pieces of prediction capability information respectively corresponding to different network slicing sub-network instances in the N network slicing sub-network instances, each piece of prediction capability information comprises static capability information and dynamic capability information of the corresponding network slicing sub-network instance, the static capability information indicates optimal values which can be respectively reached by one or more network performance indexes of the corresponding network slicing sub-network instance, and the dynamic capability information indicates actual values which can be respectively reached by one or more network performance indexes of the corresponding network slicing sub-network instance;
The first generation unit is used for generating target network slicing subnet requirement information based on the network slicing requirement information and the estimated capability information set, and the target network slicing subnet requirement information is used for creating target network slicing subnet examples in the N network slicing subnet examples;
the first sending unit is configured to send first indication information to a network slicing subnet management device, where the first indication information indicates the network slicing subnet management device to create the target network slicing subnet instance based on the target network slicing subnet requirement information.
18. The network management apparatus according to claim 17, wherein the network management apparatus is a network slice management device, and the obtaining unit is configured to obtain the estimated capability information of one network slice subnet instance of the N network slice subnet instances from at least two network slice subnet management devices, respectively, to obtain the at least two pieces of estimated capability information.
19. The network management device of claim 17, wherein the network management device is a network digital twin; the network management apparatus further includes:
a first receiving unit configured to receive the network slice requirement information from a network slice management apparatus;
The obtaining unit is configured to obtain, according to the network slicing requirement information, estimated capability information of one network slicing subnet instance of the N network slicing subnet instances from at least two network slicing subnet management mirroring devices, to obtain the at least two pieces of estimated capability information;
the first indication information comprises the target network slicing subnet requirement information.
20. The network management apparatus according to claim 18 or 19, wherein the acquisition unit includes:
a second sending unit, configured to send capability query requests to the at least two network slice subnet management devices respectively;
and the second receiving unit is used for respectively receiving a capability query feedback from the at least two network slicing subnet management devices, wherein the capability query feedback comprises estimated capability information of one network slicing subnet instance.
21. The network management apparatus according to any one of claims 17 to 20, wherein the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the corresponding network slice subnet instance, and the actual values respectively achievable by the plurality of network performance indexes are derived based on the association relationship between the plurality of network performance indexes.
22. The network management apparatus according to claim 20 or 21, wherein the network management apparatus further comprises:
the analysis unit is used for analyzing service level protocols and service characteristic information from the network slice demand information;
the capability query request includes the service level agreement and the service characteristic information.
23. The network management apparatus according to claim 20 or 21, wherein the capability query request includes network slice requirement information and second indication information for indicating parsing of service level agreement and service characteristic information from the network slice requirement information.
24. The network management device according to any one of claims 18 to 23, wherein the first generating unit is configured to decompose each network performance index of the one or more network performance indexes in the N network slicing subnet instances according to one or more network performance indexes included in the network slicing requirement information and the estimated capability information set, to obtain the target network slicing subnet requirement information, where the target network slicing subnet requirement information includes one or more network performance indexes that the target network slicing subnet instance needs to meet.
25. The network management apparatus according to any one of claims 18 to 24, wherein the acquisition unit includes:
the second generating unit is used for generating initial network slicing subnet requirement information of different network slicing subnet instances in the N network slicing subnet instances based on the network slicing requirement information and the static capacity information;
a third sending unit, configured to send network slicing subnet instance verification requests to the at least two network slicing subnet management devices, where the network slicing subnet instance verification requests include initial network slicing subnet requirement information of corresponding network slicing subnet instances;
and a third receiving unit, configured to receive network slicing subnet instance verification feedback from the at least two network slicing subnet management devices, where the slicing subnet instance verification feedback includes the dynamic capability information of the corresponding network slicing subnet instance, and the dynamic capability information indicates an achievement result of an initial network slicing subnet requirement of the corresponding network slicing subnet instance.
26. The network management apparatus of claim 25, wherein the network slice subnet instance verification feedback further comprises a difference between actual achievement of a plurality of network performance metrics for the respective network slice subnet instance and the initial network slice subnet requirement.
27. A network management device, characterized by being configured to manage a target network slicing subnet instance, where the target network slicing subnet instance belongs to one of N network slicing subnet instances to be created in the network slicing instances, where N is greater than or equal to 2, and the network management device includes:
a first obtaining unit, configured to obtain estimated capability information of the target network slicing subnet instance, where the estimated capability information includes static capability information and dynamic capability information of the target network slicing subnet instance, the static capability information indicates optimal values that can be reached by one or more network performance indexes of the target network slicing subnet instance, and the dynamic capability information indicates actual values that can be reached by one or more network performance indexes of the target network slicing subnet instance;
the first sending unit is used for sending the estimated capability information to the network slice management equipment, wherein the estimated capability information is used for generating target network slice subnet requirement information;
a first receiving unit configured to receive first instruction information from the network slice management apparatus, the first instruction information instructing to create the target network slice subnet instance based on the target network slice subnet requirement information;
And the creating unit is used for creating the target network slicing subnet instance according to the first indication information.
28. The network management apparatus of claim 27, wherein the first acquisition unit comprises:
a second receiving unit for receiving a capability query request from the network slice management apparatus;
the second acquisition unit is used for acquiring the estimated capability information of the target network slicing subnet instance;
the first sending unit is configured to send capability query feedback to the network slice management device, where the capability query feedback includes estimated capability information of the target network slice subnet instance.
29. The network management apparatus according to claim 27 or 28, wherein the dynamic capability information indicates an association relationship between the plurality of network performance indexes of the target network slice subnet instance, and the actual values respectively achievable by the plurality of network performance indexes are derived based on the association relationship between the plurality of network performance indexes.
30. The network management device according to claim 28 or 29, wherein the capability query request includes a service level protocol and service characteristic information, the first obtaining unit is configured to obtain static capability information of the target network chip subnet instance based on the service level protocol, and obtain dynamic capability information of the target network chip subnet instance based on the service level protocol and the service characteristic information.
31. The network management apparatus according to claim 28 or 29, wherein the capability query request includes network slice requirement information and indication information for indicating parsing of service class protocol and service characteristic information from the network slice requirement information;
the first acquisition unit includes:
the analyzing unit is used for analyzing the service grade protocol and the service characteristic information from the network slice demand information according to the network slice demand information and the indication information;
and the third acquisition unit is used for acquiring the static capacity information of the target network slicing subnet instance based on the service level protocol and acquiring the dynamic capacity information of the target network slicing subnet instance based on the service level protocol and the service characteristic information.
32. The network management device according to any one of claims 27 to 31, wherein the first transmitting unit includes:
a third receiving unit, configured to receive a network slicing subnet instance verification request from the network slicing management device, where the network slicing subnet instance verification request includes initial network slicing subnet requirement information of the target network slicing subnet instance;
And the second sending unit is used for sending network slicing subnet example verification feedback to the network slicing management equipment, wherein the slicing subnet example verification feedback comprises the dynamic capability information of the target network slicing subnet example, and the dynamic capability information indicates an achievement result of the initial network slicing subnet requirement of the target network slicing subnet example.
33. A network management system comprising a network management device according to any one of claims 17 to 26 and at least one network management device according to any one of claims 27 to 32.
34. A network management device comprising a processor and interface circuitry for receiving signals from other devices than the device and transmitting to the processor or sending signals from the processor to other devices than the device, the processor being configured to implement the method of any one of claims 1-10 or the method of any one of claims 11-16 by logic circuitry or execution of code instructions.
35. A computer readable storage medium, characterized in that the storage medium has stored therein a computer program or instructions which, when executed by a network management device, implements the method according to any of claims 1-10 or implements the method according to any of claims 11-16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210467879.5A CN117014315A (en) | 2022-04-29 | 2022-04-29 | Network management method, device, system and storage medium |
| PCT/CN2023/086250 WO2023207534A1 (en) | 2022-04-29 | 2023-04-04 | Network management method, apparatus and system, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210467879.5A CN117014315A (en) | 2022-04-29 | 2022-04-29 | Network management method, device, system and storage medium |
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| CN117014315A true CN117014315A (en) | 2023-11-07 |
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| CN202210467879.5A Pending CN117014315A (en) | 2022-04-29 | 2022-04-29 | Network management method, device, system and storage medium |
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| Country | Link |
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| WO (1) | WO2023207534A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632058B (en) * | 2017-03-18 | 2020-10-09 | 华为技术有限公司 | Network slice management method and device |
| CN108809671B (en) * | 2017-04-26 | 2020-10-09 | 华为技术有限公司 | Communication method, network equipment and system |
| CN109391504B (en) * | 2017-08-11 | 2022-04-29 | 华为技术有限公司 | Network slice deployment method and device |
| CN113438681B (en) * | 2020-03-23 | 2023-04-07 | 中国移动通信集团浙江有限公司 | Network slice feasibility evaluation method and device and computing equipment |
| US11563652B2 (en) * | 2020-07-14 | 2023-01-24 | Wipro Limited | Method, system, and device for adaptive determination of network slice configuration and resource requirements |
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- 2022-04-29 CN CN202210467879.5A patent/CN117014315A/en active Pending
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