CN114727297A

CN114727297A - Network slice management method and device, electronic equipment and readable storage medium

Info

Publication number: CN114727297A
Application number: CN202110001493.0A
Authority: CN
Inventors: 高芳; 赵鹏; 蔡海涛; 袁向阳
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2022-07-08

Abstract

The invention provides a network slice management method, a network slice management device, electronic equipment and a readable storage medium. The network slice management method comprises the following steps: acquiring a total demand parameter for a network slice, wherein resources of the network slice are composed of subdomain resources of a plurality of subdomains; decomposing the total demand parameters into the plurality of subdomains, and generating a subdomain resource allocation scheme corresponding to the total demand parameters; determining a target allocation scheme in the sub-domain resource allocation schemes, wherein the required quantity of each sub-domain resource of the target allocation scheme is less than or equal to the available quantity of the sub-domain resource; and establishing a network slice example according to the target distribution scheme. The embodiment of the invention improves the convenience degree of establishing the target distribution scheme and is also beneficial to improving the utilization rate of the subdomains.

Description

Network slice management method and device, electronic equipment and readable storage medium

Technical Field

Embodiments of the present invention relate to the field of communications technologies, and in particular, to a network slice management method and apparatus, an electronic device, and a readable storage medium.

Background

A network slice is a logical private network that separates multiple virtual end-to-end networks on a unified infrastructure as needed. In the related art, when a network slice is established, allocation parameters are usually set manually and then allocated, which is inconvenient.

Disclosure of Invention

The embodiment of the invention provides a network slice management method, a network slice management device, electronic equipment and a readable storage medium, and aims to solve the problem that network slice distribution is inconvenient.

In order to solve the problems, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a network slice management method, where the method includes:

acquiring a total demand parameter for a network slice, wherein resources of the network slice are composed of subdomain resources of a plurality of subdomains;

decomposing the total demand parameters into the plurality of subdomains, and generating a subdomain resource allocation scheme corresponding to the total demand parameters;

determining a target allocation scheme in the sub-domain resource allocation schemes, wherein the required quantity of each sub-domain resource of the target allocation scheme is less than or equal to the available quantity of the sub-domain resource;

and establishing a network slice example according to the target distribution scheme.

Optionally, the levels of the overall demand parameters include a first level, a second level, and a third level, where the resource demand sequentially increases, and in the sub-domain resource allocation scheme, the resource allocation levels of the sub-domain resources include a first level, a second level, and a third level, where the resource allocation amounts sequentially increase;

the decomposing the total demand parameters into the plurality of sub-domains to generate the sub-domain resource allocation scheme corresponding to the total demand parameters includes:

allocating the resource allocation levels of the sub-domain resources corresponding to the overall demand parameters of the first level to the first level;

allocating the resource allocation grade of at least part of the sub-domain resources corresponding to the overall demand parameters of the second grade as a first grade, and allocating the resource allocation grade of at least part of the sub-domain resources as a third grade;

allocating the resource allocation levels of the sub-domain resources corresponding to the overall demand parameters of the third level to the third level;

and generating at least one sub-domain resource allocation scheme, wherein the sub-domain resource allocation scheme comprises an allocation result of sub-domain resources corresponding to at least one overall demand parameter.

Optionally, the determining a target allocation scheme in the sub-domain resource allocation schemes includes:

determining a first allocation scheme in which the demand quantity of each subdomain resource is less than or equal to the available quantity of the subdomain resource in the subdomain allocation schemes;

determining a ratio of a demand of each of the first allocation plans for the sub-domain resources to an available amount of the sub-domain resources in a case where the number of the first allocation plans is more than one;

selecting a first allocation plan with a minimum ratio of the demand amount of the subdomain resources to the available amount of the subdomain resources as the target allocation plan.

Optionally, after the decomposing the total demand parameter into the plurality of sub-domains and generating the sub-domain resource allocation scheme corresponding to the total demand parameter, the method further includes:

determining resource allocation levels for different sub-domains in the sub-domain resource allocation scheme;

and determining the demand of the subdomain resources corresponding to each resource allocation grade according to a preset deployment template.

Optionally, the establishing a network slice instance according to the target allocation scheme includes:

establishing a sub-domain example corresponding to the sub-domain resources according to the target allocation scheme;

acquiring an example identifier of a network slice to be established;

and binding the sub-instance identifier of the sub-domain instance, the instance identifier and the scheme identifier of the target allocation scheme according to the description.

In a second aspect, an embodiment of the present invention provides a network slice management apparatus, including:

the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring the total demand parameters of the network slice, and the resources of the network slice are composed of subdomain resources of a plurality of subdomains;

a disassembling module, configured to disassemble the total demand parameter into the multiple sub-domains, and generate a sub-domain resource allocation scheme corresponding to the total demand parameter;

a determining module, configured to determine a target allocation scheme in the sub-domain resource allocation schemes, where a required amount of each sub-domain resource in the target allocation scheme is less than or equal to an available amount of the sub-domain resource;

and the establishing module is used for establishing the network slice example according to the target distribution scheme.

Optionally, the levels of the total demand parameters include a first level, a second level, and a third level, where the resource demand increases sequentially, and in the sub-domain resource allocation scheme, the resource allocation levels of the sub-domain resources include a first level, a second level, and a third level, where the resource allocation amounts increase sequentially;

the disassembling module comprises:

the first allocation submodule is used for allocating the resource allocation levels of the sub-domain resources corresponding to the overall demand parameters of the first level as the first level;

the disassembling submodule is used for allocating the resource allocation grade of at least part of sub-domain resources corresponding to the overall demand parameters of the second grade to the first grade, and allocating the resource allocation grade of at least part of sub-domain resources to the third grade;

the second distribution submodule is used for distributing the resource distribution level of the sub-domain resources corresponding to the overall demand parameter of the third level to the third level;

and the generating submodule is used for generating at least one sub-domain resource allocation scheme, and the sub-domain resource allocation scheme comprises a sub-domain resource allocation result corresponding to at least one overall demand parameter.

Optionally, the determining module includes:

a first determining sub-module, configured to determine a first allocation scheme in which a required amount of each of the sub-domain resources is less than or equal to an available amount of the sub-domain resources in the sub-domain allocation schemes;

a second determining sub-module, configured to determine, if the number of the first distribution schemes is more than one, a ratio of a demanded amount of the sub-domain resources to an available amount of the sub-domain resources for each of the first distribution schemes;

and the selection sub-module is used for selecting a first distribution scheme with the minimum ratio of the demanded quantity of the subdomain resources to the available quantity of the subdomain resources as the target distribution scheme.

Optionally, the method further includes: a resource allocation level determining module, configured to determine resource allocation levels for different sub-domains in the sub-domain resource allocation scheme;

and the subdomain resource demand quantity determining module is used for determining the demand quantity of the subdomain resource corresponding to each resource allocation grade according to a preset deployment template.

Optionally, the establishing module includes:

a sub-domain example establishing sub-module, configured to establish a sub-domain example corresponding to the sub-domain resource according to the target allocation scheme;

the example identification acquisition submodule is used for acquiring the example identification of the network slice to be established;

and the binding submodule is used for binding the subinstance identification of the subdomain instance, the instance identification and the scheme identification of the target allocation scheme.

In a third aspect, an embodiment of the present invention further provides a communication device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor is configured to read the program in the memory to implement the steps of the method according to the first aspect.

In a fourth aspect, the embodiment of the present invention further provides a readable storage medium for storing a program, where the program, when executed by a processor, implements the steps in the method according to the foregoing first aspect.

In the embodiment of the invention, the subdomain resource allocation scheme is obtained by disassembling the total demand parameters for the network slice, and the network slice is established according to the target allocation scheme under the condition that the subdomain resources in the obtained subdomain resource allocation scheme meet the target allocation scheme of the demand for the subdomain resources, so that the convenience degree of establishing the target allocation scheme is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic flow chart of a network slice management method according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a network slice management apparatus provided in the implementation of the present invention;

fig. 3 is a schematic structural diagram of a communication device provided in the implementation of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," and the like in the embodiments of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Further, as used herein, "and/or" means at least one of the connected objects, e.g., a and/or B and/or C, means 7 cases including a alone, B alone, C alone, and both a and B present, B and C present, both a and C present, and A, B and C present.

With the development of 5G (5th Generation mobile networks or 5th Generation with less systems, 5th-Generation, fifth Generation mobile communication technology), the application of network slices becomes possible.

A network slice is an end-to-end logical private network that provides specific network capabilities. One network slice instance is a collection of network functions and required physical/virtual resources, consisting of network slice subnet instances of the radio, transport and core networks.

The network slice instance has sharability for the service, and generally, the service provider can provide application modes with different network isolation characteristics for the vertical industry based on different dimensions of network slice end-to-end, sub-network, virtual network element, virtual resource, physical resource and the like, such as "end-to-end slice sharing", "end-to-end slice exclusive sharing", "core network user plane exclusive sharing" and the like.

The following describes a network slice management method provided by an embodiment of the present invention.

Referring to fig. 1, fig. 1 is a schematic flowchart of a network slice management method according to an embodiment of the present invention.

In one embodiment, the network slice management method includes:

step 101: the overall demand parameters for the network slice are obtained.

The overall demand parameter may be determined according to the usage demand of the user who needs to use the network slicing service.

In this embodiment, the overall demand parameter for the network slice refers to the requirement for the performance of the network slice or the services or resources that can be provided. A network slice may be understood as being composed of three sub-slices of radio, transport and core networks, which are referred to as three sub-domains in this embodiment.

Step 102: and decomposing the total demand parameters into the plurality of subdomains, and generating a subdomain resource allocation scheme corresponding to the total demand parameters.

After the total demand parameters are obtained, the total demand parameters are disassembled and distributed to a plurality of subdomains corresponding to the network slices.

It should be appreciated that since a network slice is made up of three sub-domains, radio, transport and core networks, the resources or performance of the network slice are actually provided by the sub-domain resources of these sub-domains. In this embodiment, the allocation is performed according to the total demand parameters required for the network slice, so as to determine the resources contributed by each sub-domain resource to the network slice.

In an optional embodiment, the levels of the overall demand parameter include a first level, a second level and a third level, in which the demand amount of the resource increases sequentially, and in the subzone resource allocation scheme, the resource allocation levels of the subzone resources include a first level, a second level and a third level, in which the allocation amount of the resource increases sequentially.

In this embodiment, an example is given in which the first level of the demand level of the network slice is a low level, the second level is a medium level, and the third level is a high level, and the first level of the allocation level of the sub-domain resources is a low level, the second level is a medium level, and the third level is a high level.

In this embodiment, if the requirement level of the network slice is a low level, it indicates that the performance requirement for the network slice is low; if the requirement level of the network slice is a middle level, the requirement on the performance of the network slice is certain, but the network slice is not required to have overhigh performance; if the demand level of the network slice is high level, the network slice needs to have higher performance.

Similarly, taking the subdomain as the transmission example, if the requirement level of the transmission is a low level, it indicates that the requirement for the transmission speed is relatively low; if the transmission requirement level is a medium level, the requirement on the transmission speed is relatively high, but the requirement is not required to be too high; if the transmission demand level is high, it indicates that a higher transmission speed needs to be provided.

The step 102 specifically includes:

In this embodiment, if the total demand parameter of one network slice is the first level, that is, the low level, the requirement of the network slice on the resource is low, and therefore, the resource allocation levels of the sub-domain resources corresponding to the network slice may be all allocated to the first level, that is, all the sub-domain resources are all allocated to the low level, so that the sub-domain resources are saved, and the resource waste is avoided.

If the total demand parameter of a network slice is a third level, that is, a high level, the network slice has a high requirement on resources, and therefore, the resource allocation levels of the sub-domain resources corresponding to the network slice need to be all allocated to the third level, that is, the sub-domain resources are all allocated to the high level, so that sufficient sub-domain resources are provided, and the performance and resource demand on the network slice are met.

In this embodiment, if the overall demand parameter of one network slice is of the second level, that is, the middle level, the overall demand parameter may be split in different ways to achieve allocation of sub-domain resources.

For example, the transmission may be set to a medium level, the radio to a high level, and the core network to a low level; as another example, the transmission may be set to a medium level, the radio to a low level, and the core network to a high level. In this way, the demand levels of the radio and core networks are neutralized, thereby making the level of the overall demand parameter affected by the radio, transport and core networks in common.

Step 103: determining a target allocation scheme among the sub-domain resource allocation schemes.

After determining the sub-domain resource allocation scheme, further, it is necessary to determine whether the sub-domain resource allocation scheme can be applied.

It should be understood that, due to the limitation of hardware resources, the resources that may be allocated to the network slice are limited, that is, there may not be enough hardware resources or other resources to support the implementation of the corresponding subzone resource allocation scheme, and therefore, in this embodiment, it is necessary to further determine whether the subzone resource allocation scheme can be satisfied. And further takes the sub-domain resource allocation scheme that can be satisfied as a target allocation scheme.

It can also be understood that the required amount of each sub-domain resource of the target allocation scheme is less than or equal to the available amount of the sub-domain resource, so that enough sub-domain resources can be provided to implement the sub-domain resource allocation scheme, that is, the target allocation scheme.

Step 104: and establishing a network slice example according to the target distribution scheme.

After the target allocation scheme is determined, a required network slice instance is further established according to the target allocation scheme, that is, a network slice meeting the requirement can be obtained.

In the embodiment of the invention, the subdomain resource allocation scheme is obtained by disassembling the overall demand parameters for the network slice, and the network slice is established according to the target allocation scheme under the condition that the subdomain resource meets the target allocation scheme of the demand for the subdomain resource in the obtained subdomain resource allocation scheme, so that the convenience degree of establishing the target allocation scheme is improved.

In some embodiments, the step 103 specifically includes:

In the obtained sub-domain allocation scheme, if the required amount of sub-domain resources for only one sub-domain allocation scheme is less than or equal to the available amount of sub-domain resources, that is, only this one scheme can be implemented, and therefore, it is necessary to take the sub-domain allocation scheme as a target allocation scheme and establish a network slice instance according to the scheme.

In the obtained sub-domain allocation schemes, if there are a plurality of sub-domain allocation schemes whose demand amount for sub-domain resources is less than or equal to the available amount of sub-domain resources, i.e., these schemes are all realizable, it is necessary to select a relatively more optimal allocation scheme therefrom.

In this embodiment, the ratio of the demanded amount of the sub-domain resources to the available amount of the sub-domain resources is calculated, and the allocation scheme with the smallest ratio is selected as the target allocation scheme.

It should be appreciated that this ratio actually represents the footprint of the sub-domain resources available. If the obtained proportion is smaller, the occupation amount of the resources of the available sub-domains is smaller, and the allocation of the resources of the sub-domains is more reasonable.

If the ratio is larger, it means that more sub-domain resources are occupied, and there may be a case where the resource allocation is not reasonable.

In implementation, the proportions of the transmission, wireless and core network sub-domain resources can be calculated respectively, and the sums are summed for comparison, or the proportions of the three sub-domain resources can be calculated respectively, and the averages are taken for comparison after the sums are summed.

Illustratively, in one embodiment, the first assignment includes two types, the first type is transmission setting to medium level, wireless setting to high level, and core network setting to low level, and the second type is transmission setting to medium level, wireless setting to low level, and core network setting to high level.

Among the available sub-domain resources, there are fewer radio resources, and the core network resources are abundant. In this case, the ratio of the required amount and the available amount of the transmission resources of the two schemes is equal; the core network resources are enough, so the ratio of the required quantity to the available quantity of the core network resources of the two schemes is basically equal; because the first scheme needs to occupy more wireless resources due to the high-level wireless setting, the ratio obtained by the first scheme is higher, and the ratio obtained by the second scheme is relatively lower.

It can be understood that if the first scheme is selected, a large amount of originally few available radio resources are occupied, and if the second scheme is selected, a large amount of available core network resources are occupied, and the available core network resources are sufficient, so that the resource allocation is more reasonable, and the influence on the overall performance is relatively small.

In some of these embodiments, after step 102, the method further comprises:

In this embodiment, the deployment template is used to quantize the corresponding sub-domain resources according to the resource allocation level, so as to obtain the required amount of the specific sub-domain resources. For example, in implementation, the number of base stations and frequency bands corresponding to the base stations and the frequency bands can be determined according to the wireless level.

In some embodiments, said establishing a network slice instance according to said target allocation scheme comprises:

acquiring an example identifier of a network slice to be established;

It should be understood that since each network slice instance is actually composed collectively of its corresponding sub-domain sub-instances, in other words, each network slice instance is composed collectively of its included wireless sub-instances, transport sub-instances, and core network sub-instances.

In this embodiment, after the target allocation scheme is determined, corresponding sub-domain instances, that is, the above-mentioned wireless sub-instance, transmission sub-instance, and core network sub-instance, are respectively established according to the scheme. Furthermore, the sub-instance identifiers of the sub-domain instances, the instance identifiers of the network slices to be established and the scheme identifiers of the target allocation scheme are bound, so that the corresponding relations among the target allocation scheme, the sub-domain instances and the network slice instances are established, and the establishment of the network slice instances is completed.

The various optional implementations described in the embodiments of the present invention may be implemented in combination with each other or implemented separately without conflict, and the embodiments of the present invention are not limited thereto.

For ease of understanding, examples are illustrated below:

s1: the CSMF (Communication Service Management Function) sends a request for establishing an end-to-end Network Slice (hereinafter, referred to as a Network Slice for short), for example, obtains a user request of a certain user for the Network Slice, and sends the request to a Service provisioning request to an NSMF (Network Slice Management).

S2: the NSMF converts the above-mentioned user requirements or set-up requirements into overall requirement parameters for the network slice. At this time, a corresponding network slice instance identifier may be further generated.

S3: the NSMF disassembles the detachable total demand parameters to sub-domains of a wireless, transmission and core network according to the grade of the total demand parameters, and generates a plurality of sub-domain resource allocation schemes based on the allocation neutralization of the demands of the sub-networks with high and low grades of different sub-domains when the total demand parameters of the network slice with medium grade are disassembled. Further, a scheme identifier corresponding to each sub-domain resource allocation scheme may also be generated.

Illustratively, a certain network slice requirement comprises a parameter 1, a parameter 2 and a parameter 3, which are ranked high, medium and low, respectively, so that the parameter 2 is a separable parameter. When the NSMF splits the parameter 2, the requirement of the transmission subnet can be fixed as medium, and the requirements of the wireless and core subnets are defined as high and low 2 classes respectively for performing requirement class neutralization, so as to form 2 parameter splitting schemes, which are respectively shown in table 1 and table 2.

Table 1: first resolution scheme

Parameter(s)	Wireless	Transmission of	Core network
				1	High (a)	High (a)	Height of
2	Height of	In	Is low in
				3	Is low with	Is low in	Is low in
Network resource	reAn1	reTn	reCn1

Table 2: second resolution scheme

S4: the NSMF distributes the Subnet requirements under different distribution schemes to each NSSMF (Network Slice Subnet Management Function), and carries a scheme identifier and a Network Slice instance identifier.

Here, the NSSMF specifically includes NSSMFs corresponding to three sub-domains of a radio, transport, and core network, respectively.

S5: each sub-domain NSSMF receives the Subnet requirements under different allocation schemes, matches a deployment Template NSST (Network Slice Subnet Template), and records each Subnet requirement and the deployment Template NSST under different schemes.

S6: each sub-domain NSSMF sends Resource requirements to an RMS (Resource Management System), and the RMS queries whether network resources corresponding to the network slice subnet requirements of the professional domain under each allocation scheme are met.

Illustratively, the network resources corresponding to the requirements of the wireless subnetwork (parameter 1 is high, parameter 2 is high, and parameter 3 is low) in the parameter allocation scheme 1 are specifically reAn1 which are m base stations and share n frequency bands; the resource reTn corresponding to the transmission subnet requirements (parameter 1 is high, parameter 2 is medium, and parameter 3 is low) in the parameter allocation scheme 1 is a shared FlexE (a transmission mode) hard pipeline; the core network subnet requirements (parameter 1 is high, parameter 2 is low, and parameter 3 is low) in the parameter allocation scheme 1 correspond to the resource rechn 1, which is a shared core network element.

The network resources corresponding to the wireless subnet requirements (high parameter 1, low parameter 2, and low parameter 3) in the parameter allocation scheme 2 are specifically reAn2, which are n base stations and share m frequency bands; the resource reTn corresponding to the transmission subnet requirements (parameter 1 is high, parameter 2 is medium, and parameter 3 is low) in the parameter allocation scheme 2 is a shared FlexE hard pipeline; the resource rechn 2 corresponding to the core network subnet requirements (parameter 1 is high, parameter 2 is high, and parameter 3 is low) in the parameter allocation scheme 2 is a shared core network control plane network element and an exclusive user plane network element.

NSSMF sends scheme 1(reAn1, reTn, rechn 1), scheme 2(reAn2, reTn, rechn 2) to the RMS.

S7: and the RMS returns resource satisfaction results of all the allocation schemes to the NSSMF, and returns the proportion of the network resources corresponding to the network slice subnet requirements of the professional domain to the remaining network resources of the professional domain for the allocation schemes which are satisfied by the resources.

Here, the allocation scheme for resource satisfaction is the first allocation scheme in the network slice management method.

S8: and each sub-domain NSSMF returns the resource meeting result of each distribution scheme to the NSMF, and returns the proportion of the network resources corresponding to the network slice subnet requirements of the professional domain to the rest network resources of the professional domain for the distribution scheme meeting the resources.

For example, the network resources required by the parameter allocation schemes 1 and 2 in S7 and S8 are all satisfied, and the returned subdomain required resources account for the following ratio:

the wireless NSSMF returns to the scheme 1 that the ratio of the resources required by the wireless subnet to the wireless residual total resources is reAn 1/reanAll; scheme 2 the ratio of the resources corresponding to the wireless subnet requirements to the wireless remaining total resources is reAn 2/reanalall.

The ratio of resources corresponding to the requirements of the transmission subnet to the transmission residual total resources in the NSSMF return scheme 1 is reTn/retnAlll; the proportion of resources corresponding to the transmission subnet requirements to the transmission remaining total resources in the scheme 2 is reTn/retnAll.

The NSSMF of the core network returns to the scheme 1 that the proportion of the resources corresponding to the requirements of the core network subnet to the remaining total resources of the core network is rechn 1/reacanll; in the scheme 2, the proportion of resources corresponding to the core network subnet requirements to the remaining total resources of the core network is rechn 2/reaccnall.

S9: NSMF summarizes the conditions that each sub-domain resource meets under each scheme, and for the parameter distribution scheme that three sub-domain network resources all meet, the average value of the proportion of the network resources corresponding to each network slice subnet requirement under each scheme to the remaining total resources of the professional domain (namely the average end-to-end network slice resource proportion) is compared to determine which parameter distribution scheme is selected to open the service.

Illustratively, scheme 1 average end-to-end network slice resource occupancy is:

p1＝(reAn1/reAnAll+reTn/reTnAll+reCn1/reCnAll)/3；

scheme 2 the average end-to-end network slice resource ratio is:

p2＝(reAn2/reAnAll+reTn/reTnAll+reCn2/reCnAll)/3；

the average end-to-end network slice resource occupation ratios p1 and p2 of the parameter allocation schemes 1 and 2 are compared, and the parameter allocation scheme with the smaller end-to-end network resource occupation ratio is selected.

S10: and the NSMF informs the NSSMF to generate a subnet example, carries an example identifier of the network slice and an opening scheme identifier, and the scheme is a scheme identifier corresponding to the target distribution scheme.

And if the parameter allocation scheme which is satisfied by the three subdomains does not exist, confirming that the network slice is established unsuccessfully.

S11: and matching each sub-domain NSSMF with the stored sub-domain resource allocation scheme, arranging sub-network instances according to the corresponding sub-network requirements and the matched template, generating network slice sub-network maintenance management information and network slice sub-network instance identifiers, and binding the identifiers with the network slice instance identifiers.

S12: NSSMF passes virtualized network slice subnet management requirements to MANOs (virtualized resource and orchestration functions).

S13: and the MANO distributes the virtualized resources, generates a network slice subnet resource instance and configures the resource instance.

S14: the MANO notifies the NSSMF of the virtualized network resource instance generation result.

S15: and the NSSMF informs the NSMF of the generation result of the network slice subnet instance, and carries the identifier of the network slice subnet instance.

S16: and the NSMF binds the network slice instance identifier and the network slice subnet instance identifier.

S17: and carrying out configuration of the network slice, including necessary configuration such as network connectivity configuration.

S18: and the NSMF returns the CSMF network slice establishment success and returns the network slice instance identification.

Referring to fig. 2, fig. 2 is a structural diagram of a network slice management apparatus according to an embodiment of the present invention. As shown in fig. 3, the network slice management apparatus 200 includes:

an obtaining module 201, configured to obtain an overall demand parameter for a network slice, where a resource of the network slice is composed of subdomain resources of a plurality of subdomains;

a disassembling module 202, configured to disassemble the total demand parameter into the multiple sub-domains, and generate a sub-domain resource allocation scheme corresponding to the total demand parameter;

a determining module 203, configured to determine a target allocation scheme in the sub-domain resource allocation schemes, where a required amount of each sub-domain resource in the target allocation scheme is less than or equal to an available amount of the sub-domain resource;

an establishing module 204, configured to establish a network slice instance according to the target allocation scheme.

the decommissioning module 202 includes:

the first allocation submodule is used for allocating the resource allocation levels of the sub-domain resources corresponding to the overall demand parameters of the first level to the first level;

the second allocation submodule is used for allocating the resource allocation levels of the sub-domain resources corresponding to the total demand parameters of the third level to the third level;

and the generating sub-module is used for generating at least one sub-domain resource allocation scheme, and the sub-domain resource allocation scheme comprises an allocation result of sub-domain resources corresponding to at least one overall demand parameter.

Optionally, the determining module 203 includes:

Optionally, the establishing module 204 includes:

a sub-domain instance establishing sub-module used for establishing a sub-domain instance corresponding to the sub-domain resources according to the target distribution scheme;

The network slice management apparatus 200 can implement each process of the method embodiment in fig. 1 in the embodiment of the present invention, and achieve the same beneficial effects, and is not described herein again to avoid repetition.

The embodiment of the invention also provides communication equipment. Referring to fig. 3, the communication device may include a processor 301, a memory 302, and a program 3021 stored on the memory 302 and operable on the processor 301.

In the case that the communication device is a terminal, when being executed by the processor 301, the program 3021 may implement any steps in the method embodiment corresponding to fig. 1 and achieve the same beneficial effects, and will not be described herein again.

In the case that the communication device is a network-side device, when being executed by the processor 301, the program 3021 may implement any steps in the method embodiment corresponding to fig. 3 and achieve the same beneficial effects, which are not described herein again.

Those skilled in the art will appreciate that all or part of the steps of the method according to the above embodiments may be implemented by hardware related to program instructions, and the program may be stored in a readable medium. An embodiment of the present invention further provides a readable storage medium, where a computer program is stored on the readable storage medium, and when the computer program is executed by a processor, any step in the method embodiment corresponding to fig. 1 may be implemented, and the same technical effect may be achieved, and in order to avoid repetition, details are not repeated here.

The storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for network slice management, the method comprising:

2. The method of claim 1, wherein the levels of the overall demand parameter include a first level, a second level and a third level, in which the demand amount of the resource increases in sequence, and in the subzone resource allocation scheme, the resource allocation levels of the subzone resources include a first level, a second level and a third level, in which the allocation amount of the resource increases in sequence;

allocating the resource allocation levels of the subdomain resources corresponding to the overall demand parameters of the first level to be the first level;

and generating at least one sub-domain resource allocation scheme, wherein the sub-domain resource allocation scheme comprises the allocation result of the sub-domain resources corresponding to at least one overall demand parameter.

3. The method of claim 1 or 2, wherein the determining a target allocation scheme among the sub-domain resource allocation schemes comprises:

selecting a first allocation plan having a smallest ratio of the demanded amount of the sub-domain resources to the available amount of the sub-domain resources as the target allocation plan.

4. The method of claim 2, wherein after the parsing the overall demand parameter into the plurality of sub-domains and generating the sub-domain resource allocation schemes corresponding to the overall demand parameter, the method further comprises:

and determining the demand of the subdomain resource corresponding to each resource allocation grade according to a preset deployment template.

5. The method of claim 1, wherein the establishing a network slice instance according to the target allocation scheme comprises:

acquiring an example identifier of a network slice to be established;

6. A network slice management apparatus, comprising:

7. The apparatus of claim 6, wherein the levels of the overall demand parameter include a first level, a second level and a third level at which the demand amount of the resource increases in sequence, and in the subzone resource allocation scheme, the resource allocation levels of the subzone resources include a first level, a second level and a third level at which the allocation amount of the resource increases in sequence;

the disassembling module comprises:

8. The apparatus of claim 6 or 7, wherein the determining module comprises:

9. The apparatus of claim 7, further comprising:

a resource allocation level determining module, configured to determine resource allocation levels for different sub-domains in the sub-domain resource allocation scheme;

10. The apparatus of claim 6, wherein the establishing module comprises:

11. An electronic device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; characterized in that the processor, reading the program in the memory, implements the steps in the network slice management method according to any of claims 1 to 5.

12. A readable storage medium storing a program, wherein the program, when executed by a processor, implements the steps in the network slice management method of any of claims 1 to 5.