CN115250489B - Control system and method for carrying network slice - Google Patents

Abstract

The invention provides a system and a method for controlling a bearing network slice, wherein the system is respectively connected with a network slice management system NSMF and a bearing network slice management system TN-NSSMF; the system comprises a topology module and a slice management and control module; the topology module stores topology information of a bearing network, so that the NSMF performs slice planning of the bearing network based on the topology information to obtain a slice butt joint port; the slice management and control module stores slice object information of the bearer network, so that the NSMF generates slice creation parameters based on the slice docking port and the slice object information, and the TN-NSSMF performs slice deployment of the bearer network based on the slice creation parameters. The system and the method provided by the embodiment of the invention realize the modeling of the northbound interface between NSMF and TN-NSSMF and realize the planning and deployment of the automated bearing network slice.

Description

Control system and method for carrying network slice

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a system and method for controlling a slice of a bearer network.

Background

The new services of the 5G (the 5th generation mobile networks, fifth generation mobile communication technology) age with different forms are very different in network requirements, and in order to more efficiently carry more types of new services of 5G, the 5G network slicing technology has been attracting attention. A 5G network slice is an end-to-end logical private network that provides specific network capabilities. The method consists of sub-network slice examples of wireless, bearing and core networks, and realizes end-to-end slice management through a network slice management function.

Fig. 1 is a schematic diagram of a network slice control system provided in the prior art, as shown in fig. 1, there is no unified northbound interface between a current end-to-end network slice control system (Network Slice Subnet Management Function, NSMF) and a network slice control system (Transport Network-Network Slice Subnet Management Function, TN-NSSMF) of a carrier network, demand information from a client needs to be sent to the network slice control system of the carrier network through a service dispatch mode of a comprehensive resource management system, and the dispatch information needs to be manually input, so that service configuration information does not realize automatic configuration of the whole network, slice information of the network cannot be automatically updated according to the demand of the client, and slice resources are optimally controlled according to the state of the network.

Disclosure of Invention

The invention provides a system and a method for controlling a bearing network slice, which are used for solving the defect that the automatic deployment of the bearing network slice cannot be realized in the prior art and realizing the automatic deployment of the bearing network slice and the control flow of the whole life cycle.

The invention provides a bearing network slice management and control system which is respectively connected with a network slice management system NSMF and a bearing network slice management system TN-NSSMF;

the bearing network slice control system comprises a topology module and a slice control module;

the topology module stores topology information of a bearing network, so that the NSMF performs slice planning of the bearing network based on the topology information to obtain a slice butt joint port;

The slice management and control module stores slice object information of the bearer network, so that the NSMF generates slice creation parameters based on the slice docking port and the slice object information, and the TN-NSSMF performs slice deployment of the bearer network based on the slice creation parameters.

According to the system for managing and controlling the slice of the bearing network, the topology information comprises node information of a plurality of boundary nodes in the bearing network, and the node information of each boundary node comprises node types of corresponding nodes and port information of a plurality of access ports of the corresponding nodes;

The port information includes at least one of port attributes, status, and maximum available bandwidth.

According to the control system for the slice of the bearing network, the slice object information comprises a slice topology object and a slice template object of the slice object, wherein the slice topology object comprises a topology type of slice topology and access point information, and the slice template object comprises at least one of a slice grade, isolation corresponding to the slice grade, guaranteed bandwidth, guaranteed time delay, service packet loss rate and network reliability grade.

According to the system for managing and controlling the slice of the bearer network, the slice object information further comprises a performance monitoring object, so that the NSMF can monitor the performance of the deployed slice based on the performance monitoring object.

The invention also provides a method for controlling the slice of the bearing network, which is applied to a NSMF of a network slice management system, wherein the NSMF is connected with a TN-NSSMF of the bearing network slice management system through the bearing network slice control system, and the method comprises the following steps:

carrying out slice planning of a bearing network based on the topology information to obtain a slice butt joint port;

Generating a slice creation parameter based on the slice docking port and the slice object information;

and sending the slice creation parameters to the TN-NSSMF through the bearer network slice management and control system so that the TN-NSSMF can perform slice deployment of the bearer network based on the slice creation parameters.

According to the method for controlling the slice of the carrier network provided by the invention, the slice planning of the carrier network is performed based on the topology information to obtain the slice butt joint port, which comprises the following steps:

obtaining butt joint port information;

and carrying out port information verification based on the butt joint port information and port information of each access port of each node in the topology information to obtain the slice butt joint port.

According to the method for controlling the slice of the bearer network provided by the invention, the generating the slice creation parameter based on the slice docking port and the slice object information comprises the following steps:

Determining a slice object corresponding to the slice docking port based on access point information of each slice topology contained in the slice object information;

The slice creation parameter is determined based on a slice template object of the slice object contained in the slice object information.

According to the method for controlling the slice of the bearer network provided by the invention, the slice creation parameters are sent to the TN-NSSMF through the bearer network slice control system, and then the method further comprises the following steps:

Generating a slice performance measurement request based on the performance monitoring object contained in the slice object information;

The slice performance measurement request is sent to the TN-NSSMF through the bearer network slice control system so that the TN-NSSMF can monitor the performance of a deployed slice based on the slice performance measurement request and return a slice measurement result;

And performing slice optimization of the bearer network based on the slice measurement result.

The invention also provides a method for controlling the carrying network slice, which is applied to the carrying network slice management system TN-NSSMF, wherein the TN-NSSMF is connected with the network slice management system NSMF through the carrying network slice management system, and the method comprises the following steps:

Receiving a slice creation parameter transmitted by the NSMF through the bearer network slice management and control system, wherein the slice creation parameter is generated by the NSMF based on a slice docking port and the slice object information, and the slice docking port is obtained by performing slice planning of a bearer network by the NSMF based on the topology information;

And performing slice deployment of the bearing network based on the slice creation parameters.

According to the method for controlling the slice of the bearer network provided by the invention, the slice deployment of the bearer network based on the slice creation parameters comprises the following steps:

Selecting a corresponding slice template object from the slice object information based on the slice creation parameters, and generating a slice deployment scheme based on the selected slice template object;

and performing slice deployment based on the slice deployment scheme.

According to the system and the method for controlling the carrying network slice, provided by the invention, the topology information interaction between NSMF and TN-NSSMF is realized through the topology module, so that the NSMF can be well assisted to complete the design planning of the network slice, the optimal control of the slice resources according to the state of the network is realized, the automatic network slice deployment is realized through the slice control module, and the carrying network slice control system combining with the topology module and the slice control module can be used as a northbound interface between NSMF and TN-NSSMF, so that the automatic deployment of the carrying network slice and the control flow of the whole life cycle are realized.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art network slice management and control system;

Fig. 2 is a schematic structural diagram of a control system for slicing a carrier network according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a slice topology provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a topology module provided by an embodiment of the present invention;

FIG. 5 is a schematic illustration of an object for slice deployment provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of an object for slicing an operation provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of an end-to-end network slice framework provided by an embodiment of the present invention;

fig. 8 is a schematic diagram of a control system for slicing a carrier network according to an embodiment of the present invention;

fig. 9 is a flowchart of a method for controlling a slice of a bearer network according to an embodiment of the present invention;

fig. 10 is a schematic flow chart of a bearer network slice planning provided in an embodiment of the present invention;

fig. 11 is a schematic flow chart of a carrier network slice deployment provided in an embodiment of the present invention;

Fig. 12 is a schematic flow chart of a carrier network slice operation and maintenance provided in an embodiment of the present invention;

fig. 13 is a flow chart of a method for controlling a slice of a bearer network according to an embodiment of the present invention;

fig. 14 is a flowchart of a method for controlling a slice of a bearer network according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

At present, no effective north interface information modeling scheme for performing interaction between NSMF and TN-NSSMF is available, automatic deployment of a load-bearing network slice and a full life cycle management and control flow cannot be realized, and aiming at the problem, the embodiment of the invention provides a load-bearing network slice management and control system which is respectively connected with a network slice management system NSMF and a load-bearing network slice management system TN-NSSMF, and interaction between NSMF and TN-NSSMF is realized by modeling north interface information.

Fig. 2 is a schematic structural diagram of a slice control system of a carrier network according to an embodiment of the present invention, as shown in fig. 2, the system may be used as a northbound interface between NSMF and TN-NSSMF, and the system includes a topology module 210 and a slice control module 220;

The topology module 210 stores topology information of the bearer network, so that the NSMF performs slice planning of the bearer network based on the topology information to obtain a slice docking port.

The slice management and control module 220 stores slice object information of the carrier network for the NSMF to generate slice creation parameters based on the slice docking port and the slice object information, such that the TN-NSSMF performs slice deployment of the carrier network based on the slice creation parameters.

Specifically, in order to implement the interaction of topology information between the TN-NSSMF and the NSMF, the topology module 210 may store topology information of the bearer network reported by the TN-NSSMF, and then, the NSMF may acquire topology information of the bearer network from the topology module 210, and on this basis, the NSMF may perform slice planning of the bearer network according to the topology information, to obtain a planned slice docking port. In order to implement automatic network slice deployment, the slice management and control module 220 stores slice object information of the bearer network reported by the TN-NSSMF, and then, the NSMF may acquire the slice object information of the bearer network from the slice management and control module 220, generate a slice creation parameter according to the slice object information and a slice docking port, and return the slice creation parameter to the TN-NSSMF, so that the TN-NSSMF may determine a corresponding slice deployment scheme according to the slice creation parameter, and perform slice deployment of the bearer network according to the slice deployment scheme.

The system provided by the embodiment of the invention realizes the interaction of the topology information between NSMF and TN-NSSMF through the topology module, can well assist NSMF to complete the design planning of network slices, realizes the optimal management and control of slice resources according to the state of a network, realizes the automatic network slice deployment through the slice management and control module, combines the bearing network slice management and control system of the topology module and the slice management and control module, can serve as a northbound interface between NSMF and TN-NSSMF, and realizes the automatic deployment of bearing network slices and the management and control flow of the whole life cycle.

Based on any one of the above embodiments, the topology information includes node information of a plurality of boundary nodes in the bearer network, the node information of each boundary node includes a node type of a corresponding node, and port information of a plurality of access ports of the corresponding node;

The port information includes at least one of port attributes, status, and maximum available bandwidth.

Here, the node type is used to describe whether the boundary node corresponding to the node type interfaces with the bearer Network (Transport Network, TN), the radio Network (Radio Access Network, RAN), or the Core Network (CN). The port attribute is used to describe whether the corresponding access port is an ETH (Ethernet) interface or an OTN (Optical Transport Network ) interface. The port state is used to describe the connection state of the corresponding access port.

Further, before the topology information of the bearer network is reported by the TN-NSSMF, node information such as boundary nodes and access port information can be identified, so that subsequent NSMF can conveniently perform slice planning of the bearer network according to the node information.

According to the system provided by the embodiment of the invention, the topology module only reports the node information of each boundary node through the topology information comprising the node information of a plurality of boundary nodes, so that the abstraction of the bearing network can be realized, the topology details of the bottom layer network are shielded, and the state of the boundary ports of the bearing network can be updated in real time through the topology information comprising the state of the access ports of the corresponding nodes.

Based on any of the above embodiments, the slice object information includes a slice topology object of the slice object and a slice template object, wherein the slice topology object includes a topology type of the slice topology and access point information, and the slice template object includes at least one of a slice level, an isolation level corresponding to the slice level, a guaranteed bandwidth, a guaranteed time delay, a traffic packet loss rate, and a network reliability level.

Here, the slice object is a bearer slice object, and the slice topology object included may group slice topology access points. Fig. 3 is a schematic diagram of a slice topology provided by an embodiment of the present invention, as shown in fig. 3, where topology types may be used to describe a connection relationship between each logical port in a group, where the logical ports carry access point information, where the access point information is used to describe configuration information such as a VLAN (Virtual Local Area Network ) identifier, an IP (Internet Protocol, a network interconnection protocol) address, a routing parameter, etc. of each access point and TN, RAN, CN, so that interfacing with TN, RAN, CN may be achieved. The slice template object can be used for TN-NSSMF to complete the control of the network slice template.

Based on any of the above embodiments, the slice object information further includes a performance monitoring object for the NSMF to perform performance monitoring on the deployed slice based on the performance monitoring object.

Specifically, in order to realize automatic management and control of the network slice operation and maintenance monitoring stage, slice object information in the embodiment of the invention further comprises a performance monitoring object, and on the basis, NSMF can instruct to initiate a performance monitoring task between any two slice node pairs of TN through the object to monitor the performance of the deployed slice.

Based on any of the above embodiments, fig. 4 is a schematic diagram of a topology module provided by an embodiment of the present invention, and as shown in fig. 4, the topology module for slice planning may include modeling of objects such as an abstract topology (TnTopo in the figure), a border node (AccessNode), an access port (AccessPort), and the like. The three are contained, namely one TnTopo contains a plurality of AccessNode, accessNode and a plurality of AccessPort.

Through nodeType attributes in AccessNode, TN-NSSMF can be supported to divide the attributes of the boundary network elements of the transmission network, namely the boundary node types are divided, and the topology module can obtain the node types of all the boundary nodes. And, through supportedPortType, portStatus, availableBandwidth attribute in AccessPort, can obtain port attribute, state and maximum available bandwidth of the access port separately, on the basis of this, NSMF can carry on the slice planning of the bearing network according to these topological information.

Based on any of the above embodiments, fig. 5 is a schematic diagram of an object for slice deployment according to an embodiment of the present invention, where a slice object is taken as TnSlice in the figure, a slice template object of the slice object is taken as TnSliceProfile in the figure, and a slice topology object is taken as TnSliceTopo in the figure. The topology type of the slice topology included in the slice topology object is tnSliceTopoType in the graph, and the logical port described by the topology type is EndPoint endpoint object in the graph. As shown in fig. 5, tnSlice, tnSliceTopo, endPoint and TnSliceProfile both participate in the slice deployment flow, tnSlice, tnSliceTopo, endPoint is used for operations such as creation of a slice network, tnSliceProfile is used for TN-NSSMF to complete management and control of a slice template of a bearer network, and implement template policy interaction with NSMF.

Through slaLevel attributes in TnSliceProfile, SLA (Service-LEVEL AGREEMENT, service class agreement) class parameters, namely different slice classes of the bearer network, are described, and through isolationType, guaranteedBandwidth, guaranteedLatency, tnPacketLossRate, availabilityType attributes in TnSliceProfile, SLA performance parameters such as isolation, guaranteed bandwidth, guaranteed time delay, service packet loss rate, network reliability class and the like corresponding to the different slice classes can be respectively described.

Based on any of the foregoing embodiments, fig. 6 is a schematic diagram of an object for slicing operation and maintenance provided by the embodiment of the present invention, where a performance monitoring object, that is, tnSliceMemeber in the graph, as shown in fig. 6, tnSliceMemeber may complete a slice performance monitoring flow together with TnSlice, tnSliceTopo, endPoint, tnSlice, tnSliceTopo, endPoint is used for operations such as deletion adjustment of a slice network, tnSliceMemeber is used for initiating a performance monitoring request between a slice node pair of a TN, and reporting a result of the performance monitoring to an NSMF management system, which is used for NSMF to generate a slice performance report.

Based on any of the above embodiments, fig. 7 is a schematic diagram of an end-to-end network slice framework provided by the embodiment of the present invention, as shown in fig. 7, where the end-to-end network slice framework includes two parts, namely, a network slice management domain and a network slice service domain, and in a dashed line frame in fig. 7, the application range of the bearer network slice management and control system provided by the embodiment of the present invention is shown in fig. 8, and the overall model schematic diagram of the system is shown in fig. 8, where the system implements northbound interface modeling between NSMF and TN-NSSMF, so as to implement an automated management and control architecture of a bearer network slice in terms of planning, deployment, operation and maintenance monitoring, termination, and other full life cycles.

Based on any one of the above embodiments, the method for controlling a slice of a bearer network according to the embodiments of the present invention is applied to a network slice management system NSMF, where the NSMF is connected to the network slice management system TN-NSSMF through the bearer network slice management system according to any one of the above embodiments. Fig. 9 is a flow chart of a method for controlling a slice of a bearer network according to an embodiment of the present invention, as shown in fig. 9, where the method includes:

step 910, performing slice planning on the carrier network based on the topology information to obtain a slice docking port.

Specifically, in the stage of planning and designing a slice of a bearer network, NSMF sends a topology information query request to TN-NSSMF, TN-NSSMF reports topology information of the bearer network, a topology module stores the topology information, and then NSMF can acquire the topology information of the bearer network from the topology module, and on the basis, NSMF can plan the slice of the bearer network according to the topology information to obtain a planned slice docking port.

Step 920, generating a slice creation parameter based on the slice docking port and slice object information;

and step 930, transmitting the slice creation parameters to the TN-NSSMF through the bearer network slice management and control system so as to enable the TN-NSSMF to perform slice deployment of the bearer network based on the slice creation parameters.

Specifically, considering that the existing 5G bearer network does not have a slice template management or a manual input mode is adopted for the slice template creation parameters, in the embodiment of the invention, in the deployment stage of the bearer network slice, NSMF sends a slice object information query request to TN-NSSMF, namely, NSMF initiates an automatic deployment flow of the slice to the bearer network, TN-NSSMF reports slice object information of the bearer network indicated by NSMF, a slice management and control module stores the slice object information, and then NSMF can acquire slice object information of the bearer network from the slice management and control module and generate slice creation parameters according to the slice object information and a slice docking port.

Here, the NSMF may directly send the slice object information query request to the TN-NSSMF, or may send the slice object information query request to the TN-NSSMF based on a CSMF (Communication SERVICE MANAGEMENT Function) request, which is not limited in particular by the embodiment of the present invention.

After generating the slice creation parameters, the NSMF may send the slice creation parameters to the TN-NSSMF through the carrier network slice management and control system, so that the TN-NSSMF may determine a corresponding slice deployment scheme according to the slice creation parameters, and perform slice deployment of the carrier network according to the slice deployment scheme.

According to the method provided by the embodiment of the invention, through the interaction of the topology information between NSMF and TN-NSSMF, the NSMF can be well assisted to complete the design planning of the network slice, the optimization management and control of the slice resources according to the state of the network are realized, the slice creation parameters are automatically generated, the slice deployment of the bearing network is carried out based on the slice creation parameters, and the automatic deployment management of the slice configuration template is realized.

Based on any of the above embodiments, step 910 includes:

obtaining butt joint port information;

and carrying out port information verification based on the port information of each access port of each node in the butt joint port information and the port information of each access port in the topology information to obtain the slice butt joint port.

Specifically, considering that the current end-to-end network slice management and control system has a cross-domain topology management requirement, but the current cross-domain topology data is acquired from the comprehensive resource management system, the topology state and change of the bearing network cannot be reflected in real time by adopting a manual entry mode, and entry deviation is possible. Here, the docking port information may include a docking port set of the TN, RAN, and CN and attribute information of these ports.

Further, fig. 10 is a schematic flow chart of a bearer network slice planning provided by the embodiment of the present invention, as shown in fig. 10, TN-NSSMF reports topology information such as a border node type, an access port set, port status information, etc. of a bearer network, and NSMF may obtain topology information of the bearer network from a topology module, and obtain a docking port set of TN, RAN, and CN from a comprehensive asset management system. On the basis, NSMF can check each port in the butt joint port set, and firstly check whether the butt joint port information acquired from the comprehensive asset management system is correct or not, and the information is consistent with the information of the bottom layer network equipment; secondly, checking the state of the port information which is already docked through the interaction of topology information, and timely performing fault elimination to finally obtain the slice docking port for slice deployment.

According to the method provided by the embodiment of the invention, through the interactive flow of the topology information, the port information and the state of the boundary of the bearing network are reported in real time, the accuracy of information input of the comprehensive resource management system is checked in an auxiliary manner, the serious consequences caused by information input deviation are avoided, and the fault of the docked port is checked in time.

Based on any of the above embodiments, step 920 includes:

Determining a slice object corresponding to the slice docking port based on access point information of each slice topology contained in the slice object information;

the slice creation parameters are determined based on the slice template object of the slice object contained in the slice object information.

Specifically, according to the access point information of each slice topology contained in the slice object information, the NSMF can determine the slice object corresponding to the slice docking port through the logical port corresponding to the access point information, so that the slice creation parameter can be determined according to the slice template object corresponding to the slice object contained in the slice object information. Here, the access point information may be generated by NSMF query and dispatch information, or may be generated based on planning and designing of the bearer network slice, which is not limited in particular by the embodiment of the present invention.

Further, fig. 11 is a schematic flow chart of a carrier network slice deployment provided by the embodiment of the present invention, as shown in fig. 11, according to a slice docking port and slice object information, NSMF may determine a corresponding slice creation parameter, and send the slice creation parameter to TN-NSSMF, and immediately TN-NSSMF determines a corresponding carrier slice template identifier according to the received slice creation parameter, and if the carrier slice template identifier is not null, the deployment scheme of the carrier slice template corresponding to the identifier may be directly obtained by searching; if the bearer slice template identification is empty, a new deployment scenario needs to be generated according to the slice creation parameters. Finally, TN-NSSMF deploys the network slice according to the determined deployment scheme. Table 1 shows an example of application of different slice creation parameters.

Table 1:

According to the method provided by the embodiment of the invention, the slice creation parameters are generated through the slice butt joint port, the access point information, the slice template object and the like, so that the automatic slice deployment of NSMF and TN-NSSMF is realized. And, the carrier slice template mark is generated by TN-NSSMF, and corresponds to different deployment schemes of the carrier slice template, the scheme has the advantages that the carrier network completes the planning and design of the network slice template, and NSMF can use the template strategy.

Based on any of the above embodiments, the slice creation parameters are sent to the TN-NSSMF through the bearer network slice management and control system, and then further comprising:

Generating a slice performance measurement request based on the performance monitoring object contained in the slice object information;

Transmitting a slice performance measurement request to the TN-NSSMF through a bearer network slice control system so that the TN-NSSMF can monitor the performance of the deployed slice based on the slice performance measurement request and return a slice measurement result;

and performing slice optimization of the bearer network based on the slice measurement result.

Specifically, in the operation and maintenance stage of the carrier network slice, the NSMF may generate a slice performance measurement request according to the performance monitoring object included in the slice object information, and send the slice performance measurement request to the TN-NSSMF through the carrier network slice management and control system, so that the TN-NSSMF may perform performance monitoring on the deployed slice according to the slice performance measurement request, obtain a slice measurement result, and return the slice measurement result to NSSMF, and then NSSMF may perform optimization adjustment on the slice of the carrier network according to the slice measurement result.

Further, fig. 12 is a schematic flow chart of a carrier network slice operation and maintenance provided in an embodiment of the present invention, as shown in fig. 12, first, NSMF sends a slice performance measurement request to TN-NSSMF, TN-NSSMF can monitor performance of a deployed slice according to the slice performance measurement request, obtain a slice measurement result, and return the slice measurement result to NSMF. And then, if the NSMF finds that the slice performance of the bearer network exceeds the threshold, a slice adjustment request can be sent to the TN-NSSMF, and the TN-NSSMF can optimally adjust the slice network according to the slice adjustment request and return the adjusted slice adjustment structure to the NSMF.

According to the method provided by the embodiment of the invention, the NSMF initiates the slice monitoring requirement to the bearing network through the performance monitoring object, so that the reporting of the performance monitoring result by the bearing network is realized, and the optimization adjustment of the slice of the bearing network is realized based on the result of the performance monitoring of the bottom network by the NSMF.

Based on any of the above embodiments, the NSMF may also terminate the network slice by initiating a bearer network slice delete request to TN-NSSMF, releasing the resources occupied by the slice. Here, the bearer network slice deletion request may include bearer network slice identification information.

Based on any of the above embodiments, fig. 13 is a flow chart of a method for controlling a slice of a bearer network according to an embodiment of the present invention, and as shown in fig. 13, automatic deployment and control of a network slice may be divided into the following different stages: the method for controlling the slice of the bearing network can realize the automatic control framework of the bearing network slice in the aspects of full life cycle such as planning, deployment, operation and maintenance monitoring and termination and the like.

Based on any of the above embodiments, fig. 14 is a flowchart of a method for controlling a slice of a bearer network according to an embodiment of the present invention, as shown in fig. 14, where the method is applied to a bearer network slice management system TN-NSSMF, and TN-NSSMF is connected to a network slice management system NSMF through the bearer network slice management system according to any of the above embodiments, and the method includes:

step 1410, receiving a slice creation parameter transmitted by an NSMF through a carrier network slice management and control system, wherein the slice creation parameter is generated by the NSMF based on a slice docking port and slice object information, and the slice docking port is obtained by performing a slice planning of the carrier network by the NSMF based on topology information;

Specifically, in the stage of planning and designing a slice of a bearer network, NSMF sends a topology information query request to TN-NSSMF, TN-NSSMF reports topology information of the bearer network, a topology module stores the topology information, and then NSMF can acquire the topology information of the bearer network from the topology module, and on the basis, NSMF can plan the slice of the bearer network according to the topology information to obtain a planned slice docking port.

In the deployment stage of the carrier network slice, NSMF sends a slice object information query request to TN-NSSMF, namely NSMF initiates an automatic deployment flow of the slice to the carrier network, TN-NSSMF reports slice object information of the carrier network indicated by NSMF, a slice management and control module stores the slice object information, and then NSMF can acquire slice object information of the carrier network from the slice management and control module and generate slice creation parameters according to the slice object information and a slice docking port. After generating the slice creation parameters, the NSMF may send the slice creation parameters to the TN-NSSMF, and the TN-NSSMF may receive the slice creation parameters through the carrier network slice management and control system.

Here, the NSMF may directly send the slice object information query request to the TN-NSSMF, or may send the slice object information query request to the TN-NSSMF based on the CSMF request, which is not limited in detail in the embodiment of the present invention.

Step 1420, performing slice deployment of the bearer network based on the slice creation parameters.

Specifically, after the TN-NSSMF receives the slice creation parameters transmitted by the carrier network slice management and control system, a corresponding slice deployment scheme may be determined according to the slice creation parameters, and slice deployment of the carrier network may be performed according to the slice deployment scheme.

According to the method provided by the embodiment of the invention, through the interaction of the topology information between NSMF and TN-NSSMF, the NSMF can be well assisted to complete the design planning of the network slice, the optimization management and control of the slice resources according to the state of the network are realized, the slice creation parameters are automatically generated, the slice deployment of the bearing network is carried out based on the slice creation parameters, and the automatic deployment management of the slice configuration template is realized.

Based on any of the above embodiments, step 1420 includes:

selecting a corresponding slice template object from slice object information based on slice creation parameters, and generating a slice deployment scheme based on the selected slice template object;

The slice deployment is performed based on a slice deployment scheme.

Specifically, TN-NSSMF selects a corresponding slice template object from slice object information according to received slice creation parameters, generates a corresponding slice deployment scheme according to the selected slice template object, and then TN-NSSMF deploys network slices according to the determined slice deployment scheme. Optionally, TN-NSSMF selects the obtained slice template object to determine the corresponding load slice template identifier, if the load slice template identifier is not empty, the deployment scheme of the load slice template corresponding to the identifier can be directly obtained by searching; if the bearer slice template identification is empty, a new deployment scenario needs to be generated from the slice template object.

Fig. 15 illustrates a physical structure diagram of an electronic device, as shown in fig. 15, which may include: processor 1510, communication interface (Communications Interface) 1520, memory 1530, and communication bus 1540, wherein processor 1510, communication interface 1520, memory 1530 communicate with each other via communication bus 1540. The processor 1510 may invoke logic instructions in the memory 1530 to perform a bearer network slice management method applied to a network slice management system NSMF connected to the bearer network slice management system TN-NSSMF through the bearer network slice management system in any of the embodiments described above, the method comprising: carrying out slice planning of the bearing network based on topology information to obtain a slice butt joint port; generating a slice creation parameter based on the slice docking port and the slice object information; and transmitting the slice creation parameters to the TN-NSSMF through the bearer network slice management and control system so as to enable the TN-NSSMF to carry out slice deployment of the bearer network based on the slice creation parameters.

Or the method may also be applied to a carrier network slice management system TN-NSSMF, where TN-NSSMF is connected to the network slice management system NSMF through the carrier network slice management system in any of the foregoing embodiments, and the method includes: receiving a slice creation parameter transmitted by NSMF through a bearer network slice management and control system, wherein the slice creation parameter is generated by NSMF based on slice docking ports and slice object information, and the slice docking ports are obtained by performing slice planning of the bearer network by NSMF based on topology information; and carrying out slice deployment of the bearing network based on the slice creation parameters.

Further, the logic instructions in the memory 1530 described above may be implemented in the form of software functional units and may be stored on a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, are capable of performing the method for controlling a carrier network slice provided by the methods above, the method being applied to a network slice management system NSMF connected to a carrier network slice management system TN-NSSMF by the carrier network slice management system in any of the embodiments above, the method comprising: carrying out slice planning of the bearing network based on topology information to obtain a slice butt joint port; generating a slice creation parameter based on the slice docking port and the slice object information; and transmitting the slice creation parameters to the TN-NSSMF through the bearer network slice management and control system so as to enable the TN-NSSMF to carry out slice deployment of the bearer network based on the slice creation parameters.

Or the method may also be applied to a carrier network slice management system TN-NSSMF, where TN-NSSMF is connected to the network slice management system NSMF through the carrier network slice management system in any of the foregoing embodiments, and the method includes: receiving a slice creation parameter transmitted by NSMF through a bearer network slice management and control system, wherein the slice creation parameter is generated by NSMF based on slice docking ports and slice object information, and the slice docking ports are obtained by performing slice planning of the bearer network by NSMF based on topology information; and carrying out slice deployment of the bearing network based on the slice creation parameters.

In yet another aspect, the present invention further provides a non-transitory computer readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, is implemented to perform a method for controlling a bearer network slice provided by the above methods, where the method is applied to a network slice management system NSMF, where the NSMF is connected to a bearer network slice management system TN-NSSMF through the bearer network slice management system in any one of the above embodiments, and the method includes: carrying out slice planning of the bearing network based on topology information to obtain a slice butt joint port; generating a slice creation parameter based on the slice docking port and the slice object information; and transmitting the slice creation parameters to the TN-NSSMF through the bearer network slice management and control system so as to enable the TN-NSSMF to carry out slice deployment of the bearer network based on the slice creation parameters.

Or the method may also be applied to a carrier network slice management system TN-NSSMF, where TN-NSSMF is connected to the network slice management system NSMF through the carrier network slice management system in any of the foregoing embodiments, and the method includes: receiving a slice creation parameter transmitted by NSMF through a bearer network slice management and control system, wherein the slice creation parameter is generated by NSMF based on slice docking ports and slice object information, and the slice docking ports are obtained by performing slice planning of the bearer network by NSMF based on topology information; and carrying out slice deployment of the bearing network based on the slice creation parameters.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. The control system for the bearing network slicing is characterized by being connected with a network slicing management system NSMF and a bearing network slicing management system TN-NSSMF respectively;

the bearing network slice control system comprises a topology module and a slice control module;

the topology module stores topology information of a bearing network, so that the NSMF performs slice planning of the bearing network based on the topology information to obtain a slice butt joint port;

The slice management and control module stores slice object information of the bearer network, so that the NSMF generates slice creation parameters based on the slice docking port and the slice object information, and the TN-NSSMF performs slice deployment of the bearer network based on the slice creation parameters.

2. The carrier network slice management and control system of claim 1, wherein the topology information comprises node information of a plurality of border nodes in the carrier network, the node information of each border node comprising a node type of a corresponding node and port information of a plurality of access ports of the corresponding node;

The port information includes at least one of port attributes, status, and maximum available bandwidth.

3. The carrier network slice management and control system of claim 1, wherein the slice object information comprises a slice topology object and a slice template object of a slice object, wherein the slice topology object comprises a topology type of a slice topology and access point information, and wherein the slice template object comprises at least one of a slice level, a degree of isolation corresponding to the slice level, a guaranteed bandwidth, a guaranteed latency, a traffic packet loss rate, and a network reliability level.

4. The carrier network slice management and control system of claim 3 wherein the slice object information further comprises a performance monitoring object for the NSMF to perform performance monitoring on deployed slices based on the performance monitoring object.

5. A method of bearer network slice management and control, characterized in that the method is applied to a network slice management system NSMF connected to a bearer network slice management system TN-NSSMF through a bearer network slice management and control system according to any one of claims 1 to 4, the method comprising:

carrying out slice planning of a bearing network based on the topology information to obtain a slice butt joint port;

Generating a slice creation parameter based on the slice docking port and the slice object information;

and sending the slice creation parameters to the TN-NSSMF through the bearer network slice management and control system so that the TN-NSSMF can perform slice deployment of the bearer network based on the slice creation parameters.

6. The method for controlling slicing of a carrier network according to claim 5, wherein the performing slicing planning of the carrier network based on the topology information to obtain a slice docking port includes:

obtaining butt joint port information;

and carrying out port information verification based on the butt joint port information and port information of each access port of each node in the topology information to obtain the slice butt joint port.

7. The bearer network slice control method of claim 5, wherein the generating slice creation parameters based on the slice docking port and the slice object information comprises:

Determining a slice object corresponding to the slice docking port based on access point information of each slice topology contained in the slice object information;

The slice creation parameter is determined based on a slice template object of the slice object contained in the slice object information.

8. The method of claim 5, wherein the sending the slice creation parameter to the TN-NSSMF via the carrier network slice management and control system further comprises:

Generating a slice performance measurement request based on the performance monitoring object contained in the slice object information;

The slice performance measurement request is sent to the TN-NSSMF through the bearer network slice control system so that the TN-NSSMF can monitor the performance of a deployed slice based on the slice performance measurement request and return a slice measurement result;

And performing slice optimization of the bearer network based on the slice measurement result.

9. A method for managing and controlling a network slice of a bearer, wherein the method is applied to a network slice management system TN-NSSMF, and the TN-NSSMF is connected to a network slice management system NSMF through the network slice management system of any one of claims 1 to 4, and the method comprises:

Receiving a slice creation parameter transmitted by the NSMF through the bearer network slice management and control system, wherein the slice creation parameter is generated by the NSMF based on a slice docking port and the slice object information, and the slice docking port is obtained by performing slice planning of a bearer network by the NSMF based on the topology information;

And performing slice deployment of the bearing network based on the slice creation parameters.

10. The method of claim 9, wherein the performing slice deployment of the bearer network based on the slice creation parameters comprises:

Selecting a corresponding slice template object from the slice object information based on the slice creation parameters, and generating a slice deployment scheme based on the selected slice template object;

and performing slice deployment based on the slice deployment scheme.