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WO2019091439A1 - Procédé, dispositif et terminal de génération de tranches de réseau - Google Patents

Procédé, dispositif et terminal de génération de tranches de réseau Download PDF

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Publication number
WO2019091439A1
WO2019091439A1 PCT/CN2018/114664 CN2018114664W WO2019091439A1 WO 2019091439 A1 WO2019091439 A1 WO 2019091439A1 CN 2018114664 W CN2018114664 W CN 2018114664W WO 2019091439 A1 WO2019091439 A1 WO 2019091439A1
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Prior art keywords
slice
blueprint
sub
requirement
network
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English (en)
Chinese (zh)
Inventor
祝伟宏
陈东
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present disclosure relates to the field of wireless communication systems, for example, to a network slice generation method, apparatus, and terminal.
  • the interface between the Network Management System (NMS) and the Element Management System (EMS) is called the northbound interface (Itf-N).
  • EMS mainly completes the Element Management Layer (EML) function in the International Telecommunication Union (ITU) Telecommunications Management Network (TMN), that is, completes the management functions of one or more mobile communication devices.
  • ITU International Telecommunication Union
  • Telecommunications Management Network Telecommunications Management Network
  • EMS between different device vendors cannot be universal.
  • the NMS mainly performs the Network Management Layer (NML) function in the ITU TMN and is responsible for the management of all network elements in a managed network.
  • NML Network Management Layer
  • subnet For a managed network (referred to as a subnet (SubNetwork), see the 3rd Generation Partnership Project Technical Specification (3GPP TS) 28.622), where multiple device vendors exist, multiple devices can be used.
  • 3GPP TS 3rd Generation Partnership Project Technical Specification
  • the vendor's respective EMS management achieves the goal of managing the entire subnet.
  • OSS Operations Support System
  • BSS Business Support System
  • NMS is generally considered to be included in OSS and is part of OSS.
  • Network Slice is an important part of the 5th Generation Mobile Communication Technology (5G).
  • 5G networks An important feature of 5G networks is the automation of management, including the automatic design and generation of network slices.
  • the industry has proposed the need for automatic design and generation of network slices, but has not yet provided an implementation solution.
  • the present disclosure proposes a network slice generation method, apparatus and terminal, which can meet the requirements of automatic design and generation of network slices.
  • the present disclosure proposes a network slice generation method, including:
  • the network slice management function NSMF obtains a slice blueprint according to the slice requirement
  • the NSMF generates a slice instance corresponding to the slice blueprint according to the acquired slice blueprint.
  • the present disclosure also provides a network slice generation method, the method comprising:
  • the network sub-slice management function NSSMF receives the sub-slice blueprint request sent by the network slice management function NSMF;
  • the NSSMF determines a sub-slice blueprint according to the sub-slice blueprint request
  • the NSSMF sends the determined sub-slice blueprint to the NSMF.
  • the disclosure also proposes a network slice generation method, including:
  • Blueprint design function BPDF receiving network slice management function NSMF sent slice requirements / sub-slice requirements
  • BPDF generates a new slice blueprint according to the slice requirement/sub-slice requirement
  • BPDF sends the generated slice blueprint to NSMF.
  • the present disclosure also provides a network slice generating apparatus, which is disposed on a network slice management function NSMF, and the device includes:
  • a slice blueprint acquisition unit configured to acquire a slice blueprint according to a slice requirement
  • the slice instance generation unit is configured to generate, according to the acquired slice blueprint, a slice instance corresponding to the slice blueprint.
  • the present disclosure also provides a network slice generating apparatus, which is disposed on a network sub-slice management function NSSMF, and the apparatus includes:
  • a request receiving unit configured to receive a sub-slice blueprint request sent by the network slice management function NSMF;
  • a sub-slice blueprint determining unit configured to determine a sub-slice blueprint according to the sub-slice blueprint request
  • the blueprint information transmitting unit is configured to send the determined sub-slice blueprint to the NSMF such that the NSMF generates a sub-slice blueprint according to the sub-slice blueprint.
  • the present disclosure also provides a network slice generation device, which is disposed on a blueprint design function BPDF, and the device includes:
  • a demand receiving unit configured to receive a slice requirement or a slice requirement and a sub-slice requirement sent by the network slice management function NSMF;
  • a slice blueprint acquisition unit configured to generate a new slice blueprint according to the slice requirement or the slice requirement and the sub-slice requirement
  • a sending unit configured to send the generated slice blueprint to the NSMF.
  • the present disclosure also proposes a terminal comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing any of the above network slices when executing the computer program The generation method.
  • FIG. 1 is a schematic flowchart of generating a network slice blueprint according to an embodiment
  • FIG. 2 is a schematic diagram of a composition of a network slice instantiation process according to an embodiment
  • FIG. 3 is a schematic flowchart of a network slice generation according to another embodiment
  • FIG. 4 is a schematic flowchart of a network slice generation process according to another embodiment
  • FIG. 5 is a schematic flowchart of a network slice generation process according to another embodiment
  • FIG. 6 is a structural block diagram of a network slice generating apparatus according to an embodiment
  • FIG. 7 is a structural block diagram of a network slice generating apparatus according to another embodiment.
  • FIG. 8 is a structural block diagram of a network slice generating apparatus according to another embodiment.
  • FIG. 9 is a structural block diagram of a terminal according to an embodiment.
  • Network slicing mainly refers to an instantiated complete logical network consisting of a set of network functions (including network resources supporting the network functions) with specific network characteristics, which are used to satisfy a certain type of specific network service. Demand. Examples of network characteristics here are ultra low latency or ultra high reliability.
  • the network slice is obtained by instantiating according to the network slice blueprint, so it is also called the network slice instance.
  • the network slice blueprint (template instance) refers to a complete definition that describes the structure, configuration, and workflow of the network slice instance.
  • the Network Slicing Management Function (NSMF) completes the network slice according to the definition of the network slice blueprint. Instantiation and control of the lifecycle of network slicing.
  • a sub-slice is a logical network of specific network characteristics consisting of a set of network functions and network resources supporting the network functions.
  • a network slice can contain zero, one or more sub-slices.
  • the management and orchestration of sub-slices is done by the Network Slice Subnet Management Function (NSSMF).
  • NSSMF Network Slice Subnet Management Function
  • the NSSMF completes the instantiation of the sub-slice and the control management of the sub-slice life cycle according to the definition of the sub-slice blueprint.
  • each vendor generally provides the corresponding network slice template or sub-slice template, as well as the generation and maintenance strategy of the slice template/sub-slice template.
  • NSMF and NSSMF can generate and maintain a slice blueprint/sub-slice blueprint according to network slice templates and sub-slice templates, and/or slice template/sub-slice template generation and maintenance strategies, respectively.
  • the 5G network slice is provided for specific communication services, so from the perspective of the management of the entire 5G network slice, it also includes the Communication Service Management Funtion (CSMF), so that the management of the 5G network slice is divided into three layers. :CSMF-NSMF-NSSMF.
  • CSMF Communication Service Management Funtion
  • Network slice/sub-slice template used to define the structure of the network slice/sub-slice (topology and component, etc.) and the corresponding resource requirements.
  • the definition of a template generally contains different capability options for network slices/sub-slices, called a flavor.
  • the template simply defines all possible components of the network slice/sub-slice and the resource configuration, and the complete instantiation process of the network slice/sub-slice cannot be completed according to the template.
  • One implementation of the network slice/sub-slice template is the Network Service Descriptor (NSD) of the Network Functions Virtualisation Management and Orchestration (NFV MANO).
  • Network Slice/Sub Slice Blueprint Used to define how to instantiate a network slice/sub-slice instance based on a specific template, including template information, specification information (if the template contains multiple specifications), and configuration information, which can be based on network slice/sub-network
  • the slice blueprint completes the complete instantiation process of the network slice/sub-slice.
  • the network slice/sub-slice blueprint is also referred to as a network slice/sub-slice template instance.
  • One way to implement a network slice/sub-slice blueprint is to select an NSD and then select the flavor and configuration parameters.
  • the management process of network slicing involves CSMF, NSMF and NSSMF. Therefore, the automatic orchestration and management process of network slicing also includes CSMF, NSMF and NSSMF.
  • the automatic scheduling and management of network slicing also includes NVF MANO. Corresponding virtual resource scheduling and management.
  • FIG. 1 is a schematic flowchart of a network slice blueprint generation process according to an embodiment
  • FIG. 2 is a schematic diagram of a network slice instantiation process according to an embodiment.
  • the network slice generation method provided in this embodiment includes the following steps.
  • Step 1110 The CSMF accepts the user's subscription to the communication service, including the need for the communication service to be ordered.
  • Step 1120 The CSMF determines a user's requirement for the network according to the communication service requirement input by the user, including but not limited to a Service Level Agreement (SLA).
  • SLA Service Level Agreement
  • Step 1130 The CSMF sends the determined user demand (SLA, etc.) to the network to the NSMF.
  • Step 1210 The NSMF converts the received network requirements (SLA, etc.) into slice requirements/sub-slice requirements (including but not limited to Key Performance Indicators (KPIs), etc.).
  • SLA network requirements
  • sub-slice requirements including but not limited to Key Performance Indicators (KPIs), etc.
  • step 1220 the NSMF retrieves the network slice blue library according to the slice requirement.
  • step 210 If a suitable slice blueprint is found in the network slice blue library (to satisfy the slice requirement), then go to step 210 to start the network slice instantiation process; if the appropriate slice blueprint is not found in the network slice blue library, the following two cases are .
  • step 1410 is performed, and all available sub-slices are not owned by the NSMF.
  • step 1420 is performed.
  • Step 1410 The NSMF generates a new network slice blueprint according to the slice requirement/sub-slice requirement, the pre-imported network slice template/sub-slice template, and the preset blueprint design strategy.
  • NSMF For the blueprint design of the network slice containing the sub-slice, if the NSMF already has the template of all available sub-slices and the information (KPI, etc.) that can be satisfied by the template of all available sub-slices, NSMF can directly design the sub-slice related information. Slice the blueprint. If the NSMF does not have all the sub-slice information, the NSMF sends the sub-slice requirement information to the corresponding NSSMF, and the NSSMF determines the available sub-slice blueprint (including but not limited to the template and the corresponding flavor) according to the sub-slice requirement and returns to NSMF, NSMF designs a network slice blueprint based on the obtained blueprint information of the sub-slice. In an embodiment, the following steps are performed if the NSMF does not have the required information for all available sub-slice templates and templates for all available sub-slices.
  • step 1420 the NSMF sends the sub-slice requirement to the corresponding NSSMF of the sub-slice requirement.
  • Step 1430 The NSSMF designs a sub-slice blueprint according to the sub-slice requirement and the sub-slice template information.
  • step 1440 the NSSMF sends the sub-slice blueprint to the NSMF.
  • step 1450 the NSMF generates a slice blueprint based on the slice requirement and the sub-slice blueprint.
  • Step 210 The NSMF initiates instantiation of the network slice according to the network slice blueprint.
  • step 210 includes the following steps.
  • Step 2110 the NSMF instantiates and activates the common function of the network slice instance.
  • Step 2120 The NSMF initiates instantiation of the sub-slices included in the network slice through the NSSMF.
  • Step 2130 The NSSMF finds the corresponding NSD information according to the sub-slice blueprint.
  • Step 2140 The NSSMF sends the NSD information to the MANO to instantiate the sub-slice through the MANO.
  • Step 2150 MANO allocates corresponding resources.
  • Step 2160 the NSD instantiation is completed.
  • Step 2170 The NSSMF configures the sub-slice instance according to the sub-slice blueprint.
  • Step 2180 the sub-slice instantiation is completed.
  • Step 2210 The NSMF finds the corresponding NSD information of the slice blueprint according to the slice blueprint.
  • Step 2220 the NSMF sends the NSD information to the MANO to instantiate the network service through the MANO.
  • step 2230 MANO allocates corresponding resources.
  • Step 2240 the NSD instantiation is completed.
  • Step 2250 The NSMF configures the slice instance.
  • the equipment vendor or professional-level user completes the scheduling and preset of the NSD and the corresponding virtualized Network Function Descriptor (VNFD) in MANO in advance.
  • VNFD virtualized Network Function Descriptor
  • NFVI Network Functions Virtualisation Infrastructure
  • NS network service
  • VNF Virtualised Network Function
  • FIG. 3 another embodiment proposes a method for generating a slice blueprint, the method comprising the following steps.
  • step 3110 the CSMN accepts the user's subscription to the communication service, including the need for a communication service that needs to be ordered.
  • the CSMF determines the requirements for the network according to the communication service requirements input by the user, including but not limited to the SLA.
  • step 3130 the CSMF sends the determined network requirements (SLA, etc.) to the NSMF.
  • the NSMF converts the received network requirements (SLA, etc.) into slice requirements/sub-slice requirements (including but not limited to KPIs, etc.).
  • step 3220 the NSMF retrieves the current network slice blue library based on the slice requirements.
  • step 3310 is executed, and the network slice instantiation process is started; if the appropriate slice blueprint is not found in the network slice blue library, the slice blueprint design function is started (Blueprint Design Function) , BPDF) To design a new network slice blueprint, perform step 3220.
  • step 3310 the slice blueprint found is determined to be a desired slice blueprint.
  • step 3320 the NSMF sends the slice requirement/sub-slice requirement to the BPDF.
  • step 3410 is performed, and the BPDF does not have a template for all available sub-slices and a template for all available sub-slices.
  • step 3420 is performed.
  • step 3410 the BPDF generates a new network slice blueprint according to the slice requirement/sub-slice requirement, the pre-imported network slice/sub-slice template, and the preset blueprint design strategy.
  • BPDF For the blueprint design of the network slice containing the sub-slice, if the BPDF already has the template of all available sub-slices and the information (KPI, etc.) that can be satisfied by the template of all available sub-slices, BPDF can directly design the sub-slice related information. Slice the blueprint. If the BPDF does not have all the sub-slice information, the BPDF sends the sub-slice requirement to the corresponding NSSMF. The NSSMF determines the blueprint of the available sub-slices based on the sub-slice requirements (including but not limited to the template and the corresponding flavor) and returns to the BPDF. BPDF designs a network slice blueprint based on the obtained blueprint information of the sub-slice. In an embodiment, the following steps are performed if the BPDF does not have the required information for all available sub-slice templates and templates for all available sub-slices.
  • step 3420 the BPDF sends the sub-slice request to the corresponding NSSMF.
  • Step 3430 The NSSMF designs the sub-slice blueprint according to the sub-slice requirement and the sub-slice template information.
  • Step 3440 The NSSMF sends the sub-slice blueprint information to the BPDF.
  • Step 3450 BPDF generates a slice blueprint based on the slice requirement and the sub-slice blueprint information.
  • step 3510 the BPDF sends the generated slice blueprint to the NSMF.
  • the BPDF is started to design a new network slice blueprint, and the input includes but is not limited to one of the following: slice requirement/sub-slice requirement, pre-imported network slice/sub-input Slice template and preset blueprint design strategy and other information.
  • BPDF receives the slice requirement/sub-slice requirement from NSMF, generates a new network slice blueprint based on the slice requirement/sub-slice requirement, the pre-imported network slice/sub-slice template and the preset blueprint design strategy, and slices the new network blueprint The information is returned to NSMF.
  • BPDF For the blueprint design of the network slice containing the sub-slice, if the BPDF already has the template of all available sub-slices and the information (KPI, etc.) that can be satisfied by the template of all available sub-slices, BPDF can directly design the sub-slice related information. Slice the blueprint. If the BPDF does not have all the sub-slice information, the BPDF sends the sub-slice requirement information to the corresponding NSSMF, and the NSSMF determines the blueprint of the available sub-slices according to the sub-slice requirements (including but not limited to the template and the corresponding flavor) and returns to BPDF, BPDF designs a network slice blueprint based on the obtained blueprint information of the sub-slice.
  • another embodiment provides a network slice generation method, where the method includes the following steps.
  • Step 410 The NSMF acquires a slice blueprint according to the slice requirement.
  • Step 450 The NSMF generates a slice instance corresponding to the slice blueprint according to the acquired slice blueprint.
  • the obtaining, by the NSMF, the slice blueprint according to the slice requirement in the step 410 includes the following steps.
  • Step 4110 The NSMF searches for a suitable slice blueprint in the slice blue library according to the slice requirement; when the appropriate slice blueprint can be retrieved, step 4120 is performed, and when the appropriate slice blueprint cannot be retrieved, step 4130 is performed.
  • Step 4120 The NSMF obtains the retrieved slice blueprint when the appropriate slice blueprint can be retrieved.
  • a suitable slice blueprint is a slice blueprint that meets the needs of the slice.
  • Step 4130 The NSMF generates a new slice blueprint if the appropriate slice blueprint cannot be retrieved.
  • generating a new slice blueprint in step 4130 includes: NSMF generates a new slice blueprint according to the requirement information of the slice/sub-slice, the pre-imported network slice/sub-slice template, and the preset blueprint design strategy.
  • step 4130 in the case that the network slice includes a sub-slice, the slice blueprint includes a sub-slice blueprint; and the generating a new slice blueprint further includes generating a sub-slice blueprint.
  • the generating a sub-slice blueprint includes the following steps.
  • Step 41310 In the case that the NSMF has acquired the sub-slice template information, the NSMF generates a sub-slice blueprint according to the sub-slice template information and the sub-slice requirement.
  • Sub-slice template information includes, but is not limited to, sub-slice templates and demand information that sub-slices can satisfy.
  • the sub-slice requirement is determined by the NSMF or input by the outside world, and the demand information that the sub-slice can satisfy is the characteristic of the sub-slice itself.
  • Step 41320 In the case that the NSMF has no sub-slice template information, the NSMF sends a sub-slice blueprint request to the NSSMF, so that the NSSMF determines an available sub-slice blueprint according to the sub-slice blueprint request.
  • the sub-slice blueprint request includes a sub-slice requirement.
  • Step 41330 the NSMF receives the available sub-slice blueprint determined by the NSSMF, and generates a new slice blueprint according to the sub-slice blueprint.
  • the obtaining, by the NSMF, the slice blueprint according to the slice requirement in the step 410 includes the following steps.
  • Step 4210 The NSMF searches for a suitable slice blueprint in the slice blue library according to the slice requirement; when the appropriate slice blueprint can be retrieved, step 4220 is performed, and when the approximate slice blueprint can be retrieved, step 4240 is performed, and the appropriate slice cannot be retrieved. When the blueprint or the approximate slice blueprint is performed, step 4250 is performed.
  • step 4220 the NSMF obtains the retrieved slice blueprint if the appropriate slice blueprint can be retrieved.
  • step 4230 the NSMF finds whether there is a slice blueprint that satisfies the slice requirement (meeting the preset condition) if the appropriate slice blueprint cannot be retrieved.
  • the judgment that satisfies the network slice requirement is performed according to a preset blueprint design strategy, and mainly compares whether the capability that the slice instance instantiated according to the network slice blueprint can provide the slice requirement, and there may be one The deviation value, which is set by the preset blueprint design strategy.
  • the NSMF generates a new slice blueprint according to the slice blueprint that satisfies the slice requirement, in the case of finding a slice blueprint that approximates the slice requirement.
  • a new slice blueprint is generated according to the preset blueprint design strategy based on the slice blueprint; the main blueprint is mainly based on the deviation value. Adjust to meet the slicing needs.
  • Step 4250 If a slice blueprint that satisfies the slice requirement is not found, search for an existing network slice template to find whether there is a slice template that can satisfy the slice requirement (meeting the set condition).
  • Step 4260 If a slice template that satisfies the slice requirement is found, a new slice template is generated according to the preset blueprint design strategy based on the slice template, and the similar operation is performed by using the above deviation value method to complete the new process. The generation of a slice template.
  • Step 4270 If a slice template that can satisfy the slice requirement is not found, generate a brand new slice template according to the preset blueprint design strategy;
  • Step 4280 Generate a new slice blueprint according to the newly generated slice template.
  • the NSMF may also generate a new slice blueprint without finding a slice blueprint that approximates the slice requirements. In this case, it is not searched for a slice template that approximates the slice requirement.
  • the finding whether there is a slice blueprint that satisfies the slice requirement includes: a deviation between the capability provided by the slice instance instantiated according to the slice blueprint and the capability of the slice requirement When the predetermined deviation range is within, the slice blueprint is determined to be a slice blueprint that approximately satisfies the slice requirement.
  • step 4240 the generating a new slice blueprint according to the slice blueprint that approximates the slice requirement includes:
  • a slice blueprint that approximates the slice requirement is adjusted based on the deviation value to generate a new slice blueprint.
  • the generating a slice corresponding to the slice blueprint according to the acquired slice blueprint includes: finding the corresponding NSD information of the slice blueprint according to the slice blueprint; completing the instantiation of the network service by MANO; completing the NSD at MANO After the instantiation, the network slice is configured.
  • the example of generating the slice corresponding to the slice blueprint according to the acquired slice blueprint further includes: finding the corresponding sub-slice blueprint information of the slice blueprint according to the slice blueprint; and the NSMF sends the sub-slice blueprint information to NSSMF to instantiate the sub-slices contained in the network slice through NSSMF.
  • another embodiment provides a network slice generation method, where the method includes the following steps.
  • Step 510 The NSSMF receives the sub-slice blueprint request sent by the NSMF.
  • the input information carried by the sub-slice blueprint request includes sub-slice requirements (KPI, etc.);
  • Step 520 The NSSMF determines the available sub-slice blueprint information according to the sub-slice blueprint request.
  • step 520 includes the following steps.
  • Step 5210 Receive a request for generating a sub-slice blueprint input by the NSMF, where the input information includes a sub-slice requirement (KPI, etc.).
  • Step 5220 retrieve the current sub-slice blue library according to the sub-slice requirement.
  • step 5230 is reached.
  • Step 5230 Dynamically generate a new sub-slice blueprint, that is, generate a new sub-slice blueprint according to the sub-slice requirement, the pre-imported sub-slice template, and the preset blueprint design strategy.
  • Step 530 The available sub-slice blueprint determined by the NSSMF is sent to the NSMF, so that the NSMF generates a sub-slice blueprint according to the sub-slice blueprint.
  • the method further includes the following steps during the instantiation process.
  • Step 540 The NSSMF receives the sub-slice blueprint sent by the NSMF.
  • Step 550 The NSSMF searches for NSD information corresponding to the sub-slice blueprint according to the sub-slice blueprint information.
  • Step 560 The NSSMF sends the NSD information to the MANO to complete instantiation of the network service by using the MANO.
  • Step 570 The NSSMF configures the network sub-slice after the MANO completes the instantiation of the NSD.
  • This embodiment provides a network slice generation method, and the method includes the following steps.
  • Step 610 Search for an existing sub-slice blueprint according to the sub-slice requirement, and find whether there is a sub-slice blueprint that satisfies the sub-slice requirement.
  • the judgment that the approximation to satisfy the sub-slice requirement is performed by the preset blueprint design strategy, mainly to compare whether the capability of the sub-slice instance instantiated according to the sub-slice blueprint can satisfy the requirement of the sub-slice, and there may be one here.
  • the deviation value which is set by the preset blueprint design strategy.
  • Step 620 If a sub-slice blueprint that satisfies the sub-slice requirement is found, then based on the sub-slice blueprint, a new sub-slice blueprint is generated according to the preset blueprint design strategy; here, the original blueprint is mainly based on the deviation value. Make adjustments to meet sub-slice requirements.
  • Step 630 If no sub-slice blueprint that satisfies the sub-slice requirement is found, the existing sub-slice template is searched to find whether there is a slice template that can satisfy the sub-slice requirement (meeting the set condition).
  • Step 640 If a sub-slice template that can satisfy the sub-slice requirement is found, then based on the sub-slice template, a new sub-slice template is generated according to the preset blueprint design strategy, and according to the new sub-slice template, A similar operation is also performed using the above deviation value method to complete the generation of a new sub-slice template.
  • Step 650 If a sub-slice template that can satisfy the sub-slice requirement is not found, generate a brand-new sub-slice template according to the preset blueprint design strategy.
  • Step 660 Generate a new sub-slice blueprint according to the newly generated sub-slice template.
  • the embodiment further provides a network slice generating apparatus, which is disposed on the NSMF.
  • the apparatus includes: a slice blueprint acquisition unit 710 configured to acquire a slice blueprint according to a slice requirement; and a slice instance generation unit configured to generate, by the NSMF, a slice instance corresponding to the slice blueprint according to the acquired slice blueprint.
  • the slice blueprint obtaining unit 710 is configured to: retrieve a suitable blueprint (in accordance with the slice requirement) in the slice blue library according to the slice requirement; and obtain the appropriate slice blueprint, obtain the retrieved Slice blueprint; generate a new slice blueprint if the appropriate slice blueprint cannot be retrieved.
  • the slice blueprint obtaining unit 710 is configured to generate a new slice blueprint by: generating a new slice blueprint according to the slice requirement, the slice template, and the preset blueprint design strategy; and including the sub-slice requirement in the slice requirement
  • the slice blueprint acquisition unit is configured to generate a new sub-slice blueprint according to the sub-slice requirement information, the sub-slice template, and the blueprint design strategy, and generate a new slice blueprint according to the new sub-slice blueprint.
  • the slice blueprint acquisition unit 710 further includes a sub-slice blueprint acquisition module, where the sub-slice blueprint acquisition module is configured to generate a sub-slice blueprint when the network slice includes the sub-slice;
  • the module is configured to generate a sub-slice blueprint by generating a sub-slice blueprint according to the sub-slice template information and the sub-slice requirement, and generating a new slice blueprint according to the generated sub-slice blueprint;
  • the sub-slice blueprint request is sent to the network sub-slice management function NSSMF such that the NSSMF determines a sub-slice blueprint according to the sub-slice blueprint request; and receives a sub-slice blueprint determined by the NSSMF, according to the The sub-slice blueprint information generates a slice blueprint.
  • the slice blueprint obtaining unit 710 is configured to: retrieve a suitable blueprint (in accordance with the slice requirement) in the slice blue library according to the slice requirement; and obtain the appropriate slice blueprint, obtain the retrieved Slice blueprint; if the appropriate slice blueprint cannot be retrieved, find the slice blueprint in the slice blue library according to the slice requirement to approximate the network slice requirement (the preset condition is met); find the approximate satisfied slice blueprint In the case of a slice blueprint that approximates the slice requirement, a new slice blueprint is generated; in the absence of a slice blueprint that approximately satisfies the slice requirement, a new slice blueprint is generated.
  • the slice blueprint obtaining unit 710 is configured to implement, in the following manner, whether to find a slice blueprint that satisfies the network slice requirement according to the slice requirement: the slice instance instantiated in the slice blueprint is provided by the slice instance.
  • the slice blueprint is determined to be an approximately satisfied slice blueprint when the deviation value between the capability and the required capability in the slice demand is within a predetermined deviation range;
  • the slice blueprint acquisition unit 710 is set to be implemented as follows A new slice blueprint is generated according to a slice blueprint that approximates the slice requirement: a slice blueprint that approximates the slice requirement is adjusted according to the deviation value, thereby generating a new slice blueprint.
  • the slice blueprint obtaining unit 710 is configured to be configured to generate a new slice blueprint in the case that a slice blueprint that satisfies the slice requirement is not found is obtained: the approximate slice is not found.
  • the existing network slice template is searched according to the slice requirement, and the slice slice template in the network slice template can be approximated to satisfy the slice requirement (satisfying the set condition);
  • a new slice template is generated according to the preset blueprint design strategy, and a new slice blueprint is generated according to the new slice template; if no slice is found that satisfies the slice requirement
  • a new slice template is generated according to the preset blueprint design strategy, and a new slice blueprint is generated according to the new slice template.
  • the slice blueprint obtaining unit 710 is configured to: retrieve a suitable blueprint (in accordance with the slice requirement) in the slice blue library according to the slice requirement; and if the appropriate slice blueprint can be retrieved, the slice blueprint is retrieved.
  • the slice blueprint is taken as the slice blueprint; if the appropriate slice blueprint cannot be retrieved, the need for the slice requirement/sub-slice is sent to the blueprint design function BPDF so that the BPDF is based on the need for the slice/sub-slice Generate a new slice blueprint; receive a slice blueprint sent by BPDF.
  • the slice instance generation unit 720 is configured to: find the network service descriptor NSD information corresponding to the slice blueprint according to the slice blueprint, and send the NSD information to the MANO to complete the instantiation of the network service by MANO; After the instantiation of the NSD is completed, the network slice is configured.
  • the slice instance generation unit 720 is further configured to generate a sub-slice instance corresponding to the slice blueprint according to the acquired slice blueprint, and the slice instance generation unit 720 is configured to generate a sub-slice instance corresponding to the slice blueprint according to the acquired slice blueprint by: finding a corresponding sub-slice blueprint of the slice blueprint according to the slice blueprint; the NSMF sends the sub-slice blueprint to the NSSMF to start the network through the NSSMF The instantiation of the sub-slices that the slice contains.
  • the embodiment further provides a network slice generating apparatus, which is disposed on the network sub-slice management function NSSMF.
  • the apparatus includes: a request receiving unit 810 configured to receive a sub-slice blueprint request sent by a network slice management function NSMF; and a sub-slice blueprint determining unit 820 configured to determine a sub-slice according to the sub-slice blueprint request
  • the blueprint information transmitting unit 830 is configured to transmit the determined sub-slice blueprint to the NSMF such that the NSMF generates a sub-slice blueprint according to the sub-slice blueprint.
  • the sub-slice blueprint determining unit 820 is configured to: retrieve the current sub-slice blue library according to the sub-slice requirement; and obtain the retrieved sub-slice blueprint in the case that the appropriate slice blueprint can be retrieved; If a suitable slice blueprint cannot be retrieved, a new sub-slice blueprint is generated based on the sub-slice requirements, the pre-imported sub-slice template, and the preset blueprint design strategy.
  • the apparatus further includes: an instantiation unit, configured to receive a sub-slice blueprint sent by the NSMF; and search for NSD information corresponding to the sub-slice blueprint according to the sub-slice blueprint; and send the NSD information to the MANO To complete the instantiation of the network service by the MANO; the sub-slice configuration unit is configured to configure the network sub-slice after the MANO completes the instantiation of the network service.
  • the embodiment further provides a network slice generating apparatus, which is disposed on the blueprint design function BPDF.
  • the apparatus includes: a requirement receiving unit 910 configured to receive a slice requirement/sub-slice requirement sent by a network slice management function NSMF; a slice blueprint obtaining unit 920 configured to be configured according to the slice requirement/sub-slice requirement A new slice blueprint is generated; a sending unit 930 is configured to send the generated slice blueprint to the NSMF.
  • the slice blueprint obtaining unit 920 is configured to generate a new slice blueprint according to the slice requirement/sub-slice requirement by using a template of all available sub-slices and a template of all available sub-slices.
  • BPDF generates a new slice blueprint based on the slice requirements, the pre-imported slice template, and the preset blueprint design strategy; and generates a new slice based on the sub-slice requirements, the pre-imported sub-slice template, and the blueprint design strategy.
  • a new sub-slice blueprint in the absence of a template for all available sub-slices and a template for all available sub-slices, the sub-slice requirement is sent to the corresponding NSSMF of the sub-slice requirement so that the NSSMF is based on the sub-slice requirements
  • a blueprint for the sub-slice is determined; a slice blueprint is generated based on the slice requirement and the sub-slice blueprint sent by the NSSMF.
  • the present embodiment further provides a terminal based on the same or similar concepts as the above embodiment.
  • the terminal includes a memory 1010, a processor 1020, and is stored on the memory 1010 and can be processed in the memory.
  • the computer program running on the device 1020 when the processor 1020 executes the computer program, implements any of the network slice generation methods provided in the foregoing embodiments.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé, un dispositif et un terminal de génération de tranches de réseau. Le procédé comprend : l'obtention par un NSMF d'un plan de tranche selon une demande de tranche ; et la génération par le NSMF d'une instance de tranche correspondante selon le plan de tranche obtenu.
PCT/CN2018/114664 2017-11-08 2018-11-08 Procédé, dispositif et terminal de génération de tranches de réseau Ceased WO2019091439A1 (fr)

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