WO2020052605A1 - 一种网络切片的选择方法及装置 - Google Patents

一种网络切片的选择方法及装置 Download PDF

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Publication number
WO2020052605A1
WO2020052605A1 PCT/CN2019/105479 CN2019105479W WO2020052605A1 WO 2020052605 A1 WO2020052605 A1 WO 2020052605A1 CN 2019105479 W CN2019105479 W CN 2019105479W WO 2020052605 A1 WO2020052605 A1 WO 2020052605A1
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Prior art keywords
service
management unit
network slice
information
priority
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PCT/CN2019/105479
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English (en)
French (fr)
Inventor
贾晓倩
许瑞岳
张凯
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19859364.2A priority Critical patent/EP3843440A4/en
Publication of WO2020052605A1 publication Critical patent/WO2020052605A1/zh
Priority to US17/198,993 priority patent/US11895577B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0895—Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5041—Network service management, e.g. ensuring proper service fulfilment according to agreements characterised by the time relationship between creation and deployment of a service
    • H04L41/5054—Automatic deployment of services triggered by the service manager, e.g. service implementation by automatic configuration of network components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
    • H04L47/2433—Allocation of priorities to traffic types
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0876—Network utilisation, e.g. volume of load or congestion level
    • H04L43/0888—Throughput

Definitions

  • Embodiments of the present application relate to the field of communications technologies, and in particular, to a method and an apparatus for selecting a network slice.
  • the 5th-generation (5G-generation) system uses network slicing technology.
  • Network slicing is one of the hardware, software, policies, and spectrum that network operators dynamically deploy from a business perspective to meet the quality of service of a specific user set.
  • Network slicing provides end-to-end network services for the terminal from the radio access network to the core network.
  • the network function is divided into multiple virtual network function (VNF) modules, and each VNF module can be used to perform different network functions, such as sorting, segmenting, adding Decryption and other functions form a network slice by dynamically deploying VNF modules into the network.
  • Each network slice contains a set of function instances.
  • Network slicing can provide services for various types of services.
  • a network slice may carry multiple tenants, and the multiple tenants share the resources of the network slice.
  • the resources occupied by the tenant will also change. In this way, resources occupied by other tenants among the multiple tenants will be affected. If the affected tenants have high network requirements, the communication quality of the tenant's services will be significantly affected.
  • the embodiments of the present application provide a method and a device for selecting a network slice, which are used to solve the problem of conflicting network slice resources when multiple tenants or multiple services share a network slice, and guarantee the performance of high-priority services.
  • a method for selecting a network slice is provided.
  • the execution subject of the solution is a first management unit.
  • the first management unit may be a communication service management function CSMF.
  • the specific steps of the method are: the first management unit acquires services. A request message, the service request message is used to initiate a service request for a tenant's service; the first management unit sends a network slice request message to a second management unit according to the service request message, and the network slice request message carries Priority information, which is used to indicate a priority of the tenant or a priority of the service, and the priority information is used by the second management unit to select a network slice for the service of the tenant .
  • the second management unit may be a network slice management function NSMF.
  • the first management unit determines the priority information according to the service request message.
  • the service request message includes at least one of the following information: identification information of the tenant, identification information of the service, and service requirement information of the service, wherein the service requirement information includes At least one of the following: business type, security level, isolation level, throughput, coverage, business service quality requirements;
  • the first management unit may determine the priority information according to the at least one piece of information in the service request message. Through this design, a specific way for the first management unit to determine priority information is given.
  • the priority information may also be determined in the following manner: the first management unit determines a network requirement of the service according to the service requirement information of the service, and the first management unit determines the network requirement according to the service Determine the priority information of the service network requirements; wherein the service requirement information includes at least one of the following: service type, security level, isolation level, throughput, coverage, business service quality requirements; the network demand information It includes at least one of the following: latency requirements, bandwidth requirements, and network service quality requirements.
  • the first management unit obtains a service request message. Specifically, the first management unit may receive the service request message from a communication service provider, or may send a service request message through a user. If the service request message is received from a communication service provider, the priority information may be carried in the service request message, and the first management unit obtains the priority information from the service request message.
  • the first management unit obtains the priority information from the service request message.
  • a method for selecting a network slice is provided.
  • the execution body of the solution is a second management unit.
  • the second management unit may be a network slice management function NSMF.
  • the specific steps of the method are: A management unit receives a network slicing request message, and the network slicing request message carries first priority information, where the first priority information is used to indicate a priority of a tenant or a priority of a service of a tenant; the second management The unit selects a network slice for the service of the tenant according to the first priority information.
  • the higher priority service can be assigned an adaptive network slice according to the priority of the tenant or the priority of the service, which guarantees the performance of high-priority services and ensures the priority.
  • the second management unit selects a network slice for the service of the tenant according to the first priority information. Specifically, the second management unit determines that the second management unit has priority with the first priority. Second priority information matching the level information, the second priority information is used to indicate the priority of the network slice; the second management unit selects the second priority for the service of the tenant with the second priority The network slice of the level information. In this way, a matching network slice can be selected for the tenant's service, ensuring the performance of the service.
  • the second management unit creates the network slice, and configures the second priority information for the network slice according to the first slice performance information of the network slice; or, if If the network slice is a network slice that has already been created, the second management unit obtains second slice performance information of the network slice, dynamically updates priority information of the network slice according to the second slice performance information, and updates The subsequent priority information is the second priority information.
  • the first slice performance information and the second slice performance information each include at least one of the following: a delay requirement, a bandwidth requirement, and a network service quality requirement.
  • a method for determining a priority of a network slice is provided.
  • An execution body of the method is a management unit, which may be recorded as a second management unit.
  • the method may be a network slice management function NSMF.
  • the specific method is: the management unit creates a first network slice instance NSI, and configures priority information for the first NSI according to the first slice performance information of the first NSI; or the management unit obtains the second NSI
  • the second slice performance information is update priority information for the first NSI according to the second slice performance information, and the second NSI is a created NSI.
  • the first slice performance information and the second slice performance information each include at least one of the following: a delay requirement, a bandwidth requirement, and a network service quality requirement.
  • a device for selecting a network slice which has a function of implementing the behavior of the first management unit in the first aspect or any possible design of the first aspect, and includes a method for executing the method described in the foregoing method. Steps or functions corresponding to means. The steps or functions may be implemented by software, or by hardware (such as a circuit), or by a combination of hardware and software.
  • the above device includes one or more processors and a communication unit.
  • the one or more processors are configured to support the selection device of the network slice to perform a corresponding function of the first management unit in the foregoing method. For example, a service request message is acquired, and a network slice request message is sent to the second management unit according to the service request message.
  • the communication unit is configured to support a selection device of the network slice to communicate with other devices to implement a receiving and / or transmitting function. For example, a network slice request message is sent to the second management unit.
  • the device may further include one or more memories, and the memory is configured to be coupled to the processor, and stores the program instructions and / or data necessary for the device.
  • the one or more memories may be integrated with the processor, or may be separately provided from the processor. This application is not limited.
  • the communication unit may be a transceiver, or a transceiver circuit.
  • the transceiver may be an input / output circuit or an interface.
  • the device may also be a communication chip.
  • the communication unit may be an input / output circuit or an interface of a communication chip.
  • the selection device for the network slice includes a transceiver, a processor, and a memory.
  • the processor is used to control a transceiver or an input / output circuit to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory, so that the device executes any one of the first aspect or the first aspect Possible design method completed by the first management unit.
  • the device for selecting the network slice may be a communication service management function CSMF.
  • a device for selecting a network slice which has the second management in implementing any one of the possible designs of the second aspect, the third aspect, and the second aspect or any of the possible designs of the third aspect.
  • the function of a unit behavior includes means for performing the steps or functions described in the above method.
  • the steps or functions may be implemented by software, or by hardware (such as a circuit), or by a combination of hardware and software.
  • the above device includes one or more processors and a communication unit.
  • the one or more processors are configured to support the selection device of the network slice to perform a corresponding function of the second management unit in the foregoing method. For example, a network slice is selected for the service of the tenant based on the first priority information.
  • the communication unit is configured to support a selection device of the network slice to communicate with other devices to implement a receiving and / or transmitting function. For example, a network slice request message is received from a first management unit.
  • the device may further include one or more memories, and the memory is configured to be coupled to the processor, and stores the program instructions and / or data necessary for the device.
  • the one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.
  • the communication unit may be a transceiver, or a transceiver circuit.
  • the transceiver may be an input / output circuit or an interface.
  • the device may also be a communication chip.
  • the communication unit may be an input / output circuit or an interface of a communication chip.
  • the selection device for the network slice includes a transceiver, a processor, and a memory.
  • the processor is used to control a transceiver or an input / output circuit to send and receive signals
  • the memory is used to store a computer program
  • the processor is used to run the computer program in the memory, so that the device executes the second aspect, the third aspect, and the second aspect
  • the method completed by the second management unit in any possible design of the aspect or in any possible design of the third aspect.
  • the device for selecting a network slice may be a network slice management function NSMF.
  • a system which includes the device for selecting a network slice provided by the fourth aspect and the fifth aspect.
  • a computer-readable storage medium for storing a computer program, the computer program including a computer program configured to execute any one of the first aspect, the second aspect, and the first aspect or the second aspect. Instructions for methods in any of the possible designs.
  • a computer program product includes computer program code that, when the computer program code runs on a computer, causes the computer to execute the first aspect, the second aspect, and the first aspect. Any one of the possible designs or the method in any one of the second aspects.
  • FIG. 1 is a schematic diagram of a system architecture in an embodiment of the present application
  • FIG. 2 is a first flowchart of a method for selecting a network slice according to an embodiment of the present application
  • FIG. 3 is a second flowchart of a method for selecting a network slice according to an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of a device for selecting a network slice according to an embodiment of the present application.
  • FIG. 5 is a second schematic structural diagram of a device for selecting a network slice according to an embodiment of the present application.
  • FIG. 6 is a third schematic structural diagram of a device for selecting a network slice according to an embodiment of the present application.
  • the embodiments of the present application provide a network slice selection method and device, which are used to guarantee the performance of high-priority tenants or high-priority services.
  • the method and the device are based on the same inventive concept. Since the principle of the method and the device for solving the problem is similar, the implementation of the device and the method can be referred to each other, and duplicated details will not be repeated.
  • "and / or” describes the association relationship of the associated objects, and indicates that there can be three kinds of relationships.
  • a and / or B can mean: A exists alone, A and B exist simultaneously, and There are three cases of B.
  • the character "/" generally indicates that the related objects are an "or" relationship.
  • At least one involved in this application means one or more; multiple means two or more.
  • the words “first” and “second” are used only for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor as indicating Or imply order.
  • the network slice selection method provided in the embodiments of the present application may be applicable to communication systems of different wireless access technologies, such as a long term evolution (LTE) system, a 5th generation (5G) communication system, and the like. Many possible communication systems.
  • LTE long term evolution
  • 5G 5th generation
  • FIG. 1 exemplarily shows a schematic diagram of a system architecture applicable to the embodiment of the present application, and the embodiment of the present application is not limited to the system architecture shown in FIG. 1.
  • the system architecture provided by the embodiment of the present application may include at least one of the following logical function nodes: a communication service provider (CSP) 101, a communication service management function (CSMF) 102, Network slicing management function (NSMF) 103, subnet slicing management function (NSSMF) 104, network function (NF) 105.
  • CSP communication service provider
  • CSMF communication service management function
  • NSMF Network slicing management function
  • NSSMF subnet slicing management function
  • NF network function
  • the CSP is used to deliver the business information of the tenant to the CSMF; the CSMF is used to receive the business information of the tenant issued by the CSP, to perform business management, and to convert business requirements into network requirements; NSMF is used for network slice management and slice service provision ; NSSMF is used for sub-network slice management and sub-network slice service provision; NF is used for network function management and network function service provision. NF can be connected with NSSMF or NSMF.
  • Each logical function node shown in FIG. 1 may be hardware, software divided by functions, or a combination of the above two.
  • Each of the above logical function nodes may be integrated in a network element or distributed in different Network element.
  • the above-mentioned logical function node can also be called a function module.
  • the system architecture shown in FIG. 1 is an exemplary architecture applicable to the embodiment of the present application, and the method provided by the embodiment of the present application may also be applied to other system architectures.
  • Those skilled in the art may change the names of the logical function nodes in the system architecture shown in FIG. 1 to other names. When performing the same function, it belongs to the protection scope of the present application.
  • the tenant may refer to the tenant of the operator's network.
  • a power company leases the operator's network to deploy smart meter reading services, and then the power company can be regarded as a tenant of the operator.
  • a tenant can have multiple users, and each user can initiate a service.
  • an intelligent meter reading device under a power company can be considered as a user, and the user's request to read the value of the meter is regarded as a business.
  • a car of an automobile company can be considered as a user and a communication service in driverless driving.
  • Another example is the ultra-high-definition high-traffic video service of a video website.
  • a network slice instance is a static network, which refers to different logical networks that are customized on the physical or virtual network infrastructure according to different service requirements.
  • the network slice instance can be a complete end-to-end network including terminals, access networks, transmission networks, core networks, and application servers, which can provide complete communication services and have certain network capabilities.
  • the network slice instance can also be any combination of terminal, access network, transmission network, core network, and application server.
  • selecting a network slice for a tenant (or a service) may refer to selecting a network slice instance for a tenant (or a service).
  • the first management unit is a unit having a CSMF function.
  • the communication service provider can also be called the tenant service provider or operator, and it is a unit with CSP function.
  • the second management unit is a unit having an NSMF function
  • the third management unit is a unit having an NSSMF function
  • the fourth management unit is a unit having an NF function.
  • the first management unit acquires or receives a service request message.
  • the service request message may be initiated by a user, or may be initiated by a communication service provider.
  • the communication service provider sends a service request message to the first management unit, and the first management unit receives the service request message from the communication service provider.
  • the first management unit receives a service request message, and the service request message is used to initiate a request for a service of the tenant.
  • the service request message may carry service requirement information of the service, where the service requirement information may include at least one of the following: service type, security level, isolation level, throughput (or rate), coverage, and service quality requirements ( quality of service (QoS).
  • service requirement information may include at least one of the following: service type, security level, isolation level, throughput (or rate), coverage, and service quality requirements ( quality of service (QoS).
  • the first management unit sends priority information to the second management unit according to the service request message received in S201, and the second management unit receives the priority information sent by the first management unit.
  • the priority information is used to indicate the priority of the tenant, or to indicate the priority of the service under the tenant, or to indicate the priority of the tenant and the priority of the service under the tenant.
  • the priority information is used to assist the second management unit in selecting a network slice for the service of the tenant.
  • the priority information in the embodiment of the present application may be an indicator.
  • the value of the indicator is represented by 0, 1, 2, .... If the value of the indicator is 0, it indicates that the service has the highest priority.
  • the value of this indication is 1, 2, ..., which indicates that the priority of the service decreases in order.
  • the first management unit may determine the priority information through the following possible implementations.
  • the communication service provider indicates the priority information to the first management unit, and the first management unit determines the priority information according to an instruction of the communication service provider.
  • the instruction may be provided by a service request message To reflect.
  • the communication service provider sends a service request message to the first management unit, and the priority information is carried in the service request message.
  • the first management unit receives the priority information from the communication service provider, and obtains the priority from the service request message. Level information.
  • the first management unit obtains a service request message and converts the service requirements in the service request message into network requirements. That is, the first management unit determines the network requirements of the service according to the service requirement information.
  • the requirement information is as described in S201.
  • the network requirements of the service may include at least one of the following: delay requirements, bandwidth requirements, and network QoS.
  • the first management unit determines the priority information according to a network requirement of the service.
  • each type of network requirement has a weight attribute, and the first management unit may obtain the priority of the service by weighting according to the weight of each type of network requirement. For example, if the service has a high requirement for delay, the weight value of the network requirement of the service delay type is set a little higher.
  • the service request message in S201 may carry the service requirement information, and may also carry the identification (ID) of the tenant and / or the identification (ID) of the service.
  • the first management unit may Any one or more of the ID of the tenant, the ID of the service, and the service requirement information to determine the priority information.
  • each type of service requirement information has a weight attribute, and the first management unit may obtain the priority of the service by weighting according to the weight of each type of service requirement information. For example, if the service requires high delay, the weight value of the service requirement information of the service delay type is set a little higher.
  • the first management unit sending the priority information to the second management unit may be implemented in the following manner.
  • the first management unit sends a network slice request message to the second management unit, and the priority information is carried in the network slice request message.
  • the second management unit receives the network slice request message from the first management unit and obtains the network slice request message. The priority information carried.
  • the network slice request is used to request that a network slice be selected for the service.
  • the network slicing request message may also carry one or more of a tenant ID, a service ID, or information about network requirements of the service.
  • the second management unit selects a network slice for the service of the tenant according to the priority information.
  • the selection of a network slice for the service by the second management unit may refer to allocating an existing network slice to the service, or it may refer to creating a new network slice for the service.
  • the second management unit determines that the service is to be carried on a network slice that matches the priority according to the priority information of the service.
  • the second management unit independently carries high-priority services on one network slice and low-priority services on a shared network slice. Sharing means that the service is shared on this network slice with other services. . In this way, the performance of high-priority services can be guaranteed in priority.
  • the second management unit may pre-store a mapping relationship between the priority and the network slice, and allocate a network slice corresponding to the priority to the service according to the mapping relationship.
  • the second management unit sends a sub-network slice request message to the third management unit, and the third management unit receives the sub-network slice request message sent by the second management unit.
  • the sub-network slice request carries priority information, and the priority information is priority information received by the second management unit from the first management unit.
  • the sub-network slice request may also carry one or more of a tenant identifier, a service identifier, or a sub-network requirement of the tenant service.
  • the sub-network slice request is used to request selection of a sub-network slice for the service.
  • network slices can be cross-domain.
  • network slices span multiple domains such as access networks, core networks, and transmission networks. Each domain is assigned a sub-slice, and the individual sub-slices are combined to form a network slice.
  • the types of the subnet requirements of the tenant service can refer to the introduction of the network requirements above, that is, it can include at least one of the following: delay requirements, bandwidth requirements, or QoS of the subnetwork.
  • the network requirements are decomposed into subdomain slices of multiple domains to form multiple subnetwork requirements. For example, the delay requirement is 10ms.
  • the network slice spans three domains of the access network, core network, and transmission network, and consists of three subnetwork slices. Then three The subnet requirements of each subnetwork slice can be 3ms, 3ms, and 4ms, respectively.
  • the third management unit After receiving the sub-network slice request message sent by the second management unit, the third management unit selects a sub-network slice for the service of the tenant according to the priority information in the sub-network slice request message according to the priority information.
  • the third management unit when the third management unit selects a sub-network slice for the service, the third management unit carries the service on the sub-network slice that matches the priority according to the priority of the service. For example, the third management unit independently carries high-priority services on one sub-network slice and low-priority services on shared sub-network slices, so that the performance of high-priority services can be guaranteed in priority.
  • the third management unit may also store a mapping relationship between the priority and the sub-network slice in advance, and allocate a sub-network slice corresponding to its priority to the service according to the mapping relationship.
  • the second management unit sends an NF configuration message to the fourth management unit, and the fourth management unit receives the NF configuration message sent by the second management unit.
  • the NF configuration message carries priority information, which is received by the second management unit from the first management unit.
  • the NF configuration message may also carry one or more of a tenant identifier, a service identifier, or the NF network requirements of the tenant service.
  • the NF configuration message is used to select the NF for the service of the tenant.
  • the types of NF network requirements of the tenant service can also refer to the above description of network requirements, that is, the NF network requirements of the tenant service can include at least one of the following: delay requirements, bandwidth requirements, or QoS of the NF network. Similar to the relationship between network slicing and sub-network slicing, sub-network slicing can also be composed of multiple NFs, and sub-network requirements are decomposed into multiple NF network requirements.
  • the fourth management unit After receiving the NF configuration message sent by the second management unit, the fourth management unit processes the service of the tenant according to the priority information in the NF configuration message.
  • the fourth management unit preferentially processes high-priority services. For example, when two or more services need to access the NF and the NF cannot be processed at the same time, the NF will preferentially access the higher priority service.
  • the communication service provider is CSP
  • the first management unit is CSMF
  • the second management unit is NSMF
  • the third management unit is NSSMF
  • the fourth management unit is NF.
  • the flow of the network slice selection method in an application scenario is as follows.
  • the CSP sends a service request message to the CSMF.
  • the service request message carries the service requirement information of the service, where the service requirement information may include at least one of the following: service type, security level, isolation level, throughput (or rate), coverage, and quality of service service requirements (quality of service, QoS).
  • service requirement information may include at least one of the following: service type, security level, isolation level, throughput (or rate), coverage, and quality of service service requirements (quality of service, QoS).
  • the service request message may carry priority information of the service.
  • the CSMF converts the service requirement information of the tenant service into network requirements.
  • the network requirements of the service may include at least one of the following: delay requirements, bandwidth requirements, and network QoS.
  • the CSMF can determine the priority information according to the network requirements of the service.
  • the CSMF sends a network slice request message (NSI request message) to the NSMF, and the NSMF receives the network slice request message sent by the CSMF.
  • NSI request message a network slice request message
  • the network slice request message may carry the network requirements of the tenant service, may also carry the priority information of the service, or both.
  • the NSMF allocates a network slice for the service or creates a new network slice.
  • the NSMF allocates or creates network slices for the service according to the network requirements of the tenant service, which can guarantee the performance of the service. Or, the NSMF allocates a network slice matching the priority for the service according to the priority information of the service.
  • NSMF received NSI requests from tenant service 1 and tenant service 2.
  • the network delay requirements of both tenant service 1 and tenant service 2 are 1 ms, the delay of NSI 1 is 0.5 ms, and the delay of NSI 2 is 1 ms.
  • the subnet of the tenant service 1 has a high priority.
  • the NSMF then carries the tenant service 1 on NSI1 and the tenant service 2 on NSI2.
  • S305 ⁇ S306 or S307 ⁇ S308 can be executed, or S305 ⁇ S308, S305 ⁇ S306 and S307 ⁇ S308 have no strict execution order.
  • the NSMF sends an NSSI request to the NSSMF, and the NSSMF receives the NSSI request sent by the NSMF.
  • the NSSI request carries the tenant identification, service identification, priority information, or tenant subnet requirements.
  • the NSSMF allocates an NSSI for the service.
  • the NSSMF allocates a subnetwork slice matching the priority for the service according to the priority information; or, the NSSMF allocates or creates a subnetwork slice for the service according to the tenant subnet requirements, which can guarantee the performance of the service.
  • NSSMF receives NSSI requests from tenant service 1 and tenant service 2.
  • the subnet delay requirements of tenant service 1 and tenant service 2 are both 1 ms, the delay of NSSI 1 is 0.5 ms, and the delay of NSSI 2 is 1 ms. Because the priority of the subnet of the tenant service 1 is high, the NSSMF bears the tenant service 1 on NSSI1 and the tenant service 2 on NSSI2.
  • the NSMF sends an NF configuration message to the NF, and the NF receives the NF configuration message sent by the NSMF.
  • the NF configuration message may carry NF network requirements, tenant identification, service identification, or priority information.
  • the NF selects the NF to be accessed for the service.
  • the NF selects an NF for the service according to the priority information, or the NF selects an NF for the service according to the NF network requirements. Prioritize the performance of high-priority services.
  • the NF receives the NF configuration messages of the tenant service 1 and the tenant service 2 at the same time, but the NF cannot process them at the same time. Since the priority of the tenant service 1 is high, the NF preferentially accesses the user of the tenant service 1.
  • the second management unit may also create and maintain the priority information of the network slice instance NSI.
  • the second management unit when the second management unit creates a new network slice instance, it configures priority information for the NSI.
  • the priority information is configured according to the slice performance information of the network slice instance, and the slice performance information may refer to information related to the delay requirement, bandwidth requirement, and network service quality requirement corresponding to the network slice instance.
  • the second management unit may also dynamically update the priority information of the network slice instance that has been created, that is, perform maintenance.
  • the second management unit dynamically obtains the slice performance information of the network slice instance that has been created.
  • the slice performance information is obtained by combining the subnet slice performance information obtained from the third management unit (NSSMF), and the combination method is not limited.
  • the slice performance information may refer to information related to the delay requirement, bandwidth requirement, and network service quality requirement corresponding to the network slice instance.
  • the second management unit dynamically updates the priority information of the created network slice instance according to the slice performance information.
  • the second management unit may weight each type of slice performance information to obtain priority information of the network slice instance.
  • the second management unit selects an appropriate network slice for the service, it can select a matching network slice instance for the service according to the priority information of the service and the priority information of the network slice instance.
  • an embodiment of the present application further provides a device 400 for selecting a network slice.
  • the device 400 for selecting a network slice is configured to execute the first management unit in the foregoing method embodiment Operation.
  • the network slice selection device 400 includes a processing unit 401 and a sending unit 402. among them:
  • a processing unit 401 configured to obtain a service request message, where the service request message is used to initiate a service request for a service of a tenant;
  • a sending unit 402 is configured to send a network slice request message to a second management unit according to the service request message, where the network slice request message carries priority information, and the priority information is used to indicate a priority of the tenant. Or the priority of the service, the priority information is used by the second management unit to select a network slice for the service of the tenant.
  • the processing unit 401 is further configured to determine the priority information according to the service request message.
  • the determination method can be the following.
  • the processing unit 401 is configured to determine the priority information according to the at least one piece of information in the service request message.
  • the service request message includes at least one of the following information: identification information of the tenant, identification information of the service, and service requirement information of the service, wherein the service requirement information includes at least one of the following: service type , Security level, isolation level, throughput, coverage, business service quality requirements.
  • the sending unit 402 determines the priority information when the service request message is used, and is used to determine the network requirement of the service according to the service requirement information of the service, and determine the network requirement according to the network requirement of the service.
  • the priority information wherein the business demand information includes at least one of the following: service type, security level, isolation level, throughput, coverage, business service quality requirements; the network demand information includes at least one of the following: Delay requirements, bandwidth requirements, network service quality requirements.
  • the sending unit 402 receives the service request message from a communication service provider, the service request message carries the priority information; then the sending unit 402 obtains the priority information from the service request message.
  • an embodiment of the present application further provides a device 500 for selecting a network slice, where the device 500 for selecting a network slice is configured to execute the execution of the second management unit in the foregoing method embodiment. Operation.
  • the network slice selection device 500 includes a receiving unit 501 and a processing unit 502. among them:
  • the receiving unit 501 is configured to receive a network slice request message from a first management unit, where the network slice request message carries first priority information, and the first priority information is used to indicate a priority of a tenant or a service of a tenant. priority;
  • the processing unit 502 is configured to select a network slice for the service of the tenant according to the first priority information.
  • the processing unit 502 when selecting a network slice for the service of the tenant according to the first priority information, is configured to determine a second priority that matches the first priority information Level information, the second priority information is used to indicate the priority of the network slice; and the network slice having the second priority information is selected for the service of the tenant.
  • the processing unit 502 is further configured to create the network slice, and configure the second priority information for the network slice according to the first slice performance information of the network slice;
  • the processing unit 502 is further configured to obtain second slice performance information of the network slice, and dynamically update the priority of the network slice according to the second slice performance information.
  • Level information, and the updated priority information is the second priority information.
  • the first slice performance information and the second slice performance information each include at least one of the following: a delay requirement, a bandwidth requirement, and a network service quality requirement.
  • an embodiment of the present application further provides a network slice selection device 600.
  • the network slice selection device 600 includes a transceiver 601, a processor 602, and a memory 603.
  • the memory 603 is optional.
  • the memory 63 is configured to store a program executed by the processor 602.
  • the processor 602 is configured to call a group of programs, and when the program is executed, cause the processor 602 to execute the foregoing method embodiment In the first management unit.
  • the functional module sending unit 402 in FIG. 4 may be implemented by a transceiver 601, and the processing unit 401 may be implemented by a processor 602.
  • the processor 602 is configured to call a group of programs, and when the program is executed, cause the processor 602 to execute the foregoing method embodiment Operations performed by the second snap-in.
  • the functional module receiving unit 501 in FIG. 5 may be implemented by a transceiver 601, and the processing unit 502 may be implemented by a processor 602.
  • the processor 602 may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and an NP.
  • CPU central processing unit
  • NP network processor
  • the processor 602 may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof.
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL), or any combination thereof.
  • the memory 603 may include volatile memory (for example, random-access memory (RAM); the memory 603 may also include non-volatile memory (for example, flash memory) memory), hard disk (HDD) or solid-state drive (SSD); memory 603 may also include a combination of the above types of memory.
  • volatile memory for example, random-access memory (RAM)
  • non-volatile memory for example, flash memory
  • HDD hard disk
  • SSD solid-state drive
  • memory 603 may also include a combination of the above types of memory.
  • an embodiment of the present application further provides a chip, including a processor, for supporting the device to implement the first management unit and the second management unit in the foregoing method embodiment. Functions involved in the snap-in.
  • the chip is connected to a memory or the chip includes a memory, and the memory is used to store program instructions and data necessary for the device.
  • the embodiment of the present application provides a computer storage medium storing a computer program, and the computer program includes instructions for executing the method embodiment provided by the foregoing embodiment.
  • the embodiment of the present application provides a computer program product containing instructions, which when executed on a computer, causes the computer to execute the method embodiments provided by the foregoing embodiments.
  • this application may be provided as a method, a system, or a computer program product. Therefore, this application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application may take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
  • computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a particular manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

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Abstract

一种网络切片的选择方法及装置，用以保障高优先级业务的性能。该方法为：第一管理单元获取业务请求消息，所述业务请求消息用于针对租户的业务发起业务请求；所述第一管理单元根据所述业务请求消息，向第二管理单元发送网络切片请求消息，所述网络切片请求消息中携带优先级信息，所述优先级信息用于指示所述租户的优先级或所述业务的优先级，所述优先级信息用于所述第二管理单元为所述租户的所述业务选择网络切片。

Description

一种网络切片的选择方法及装置
相关申请的交叉引用
本申请要求在2018年09月12日提交中国专利局、申请号为201811061061.3、申请名称为“一种网络切片的选择方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域，尤其涉及一种网络切片的选择方法及装置。
背景技术
第五代移动通信(the 5th-generation，5G)系统采用网络切片技术，网络切片是网络运营者从业务视角出发为满足特定用户集的服务质量而动态部署的硬件、软件、策略和频谱的一种组合。网络切片为终端提供从无线接入网到核心网的端到端的网络服务。具体的，在支持切片技术的网络中，将网络功能划分为多个虚拟网络功能(virtual network function，VNF)模块，每个VNF模块可以用来执行不同的网络功能，例如排序、分段、加解密等功能，通过将VNF模块动态地部署到网络中，形成一个个网络切片。每个网络切片包含一组功能实例。网络切片能够为各种类型业务提供服务，从网络安全角度而言，不同租户或不同业务对安全有不同的需求。网络切片的应用使得运营商或用户可以针对不同应用场景，灵活地部署网络服务，提高物理网络资源的利用效率。同时在独立配置和管理网络切片的基础上，保证网络切片的安全性。
实际应用中，一个网络切片可能会承载多个租户，该多个租户共享该网络切片的资源，当多个租户中的某个租户的业务发生变化时，该租户占用的资源也会发生变化，这样该多个租户中的其他租户占用的资源就会受到影响，若受影响的租户对网络需求要求高，则该租户的业务的通信质量就会受到明显影响。
发明内容
本申请实施例提供一种网络切片的选择方法及装置，用以解决多个租户或多个业务共享网络切片时发生的网络切片资源冲突的问题，保障高优先级业务的性能。
本申请实施例提供的具体技术方案如下：
第一方面，提供一种网络切片的选择方法，该方案的执行主体为第一管理单元，例如第一管理单元可以是通信业务管理功能CSMF，该方法的具体步骤为：第一管理单元获取业务请求消息，所述业务请求消息用于针对租户的业务发起业务请求；所述第一管理单元根据所述业务请求消息，向第二管理单元发送网络切片请求消息，所述网络切片请求消息中携带优先级信息，所述优先级信息用于指示所述租户的优先级或所述业务的优先级，所述优先级信息用于所述第二管理单元为所述租户的所述业务选择网络切片。可选的，第二管理单元可能是网络切片管理功能NSMF。通过上述网络切片的选择方法，在多个租户共享一个网络切片的场景下，能够按照租户的优先级或者业务的优先级，为优先级较高的业 务分配适应的网络切片，优先保障高优先级业务的性能，保障了一个网络切片内多个租户的资源分配的合理性和有效性。
在一个可能的设计中，所述第一管理单元根据所述业务请求消息，确定所述优先级信息。
在一个可能的设计中，所述业务请求消息中包括以下至少一种信息：所述租户的标识信息、所述业务的标识信息和所述业务的业务需求信息，其中，所述业务需求信息包括以下至少一种：业务类型、安全等级、隔离等级、吞吐量、覆盖范围、业务服务质量要求；
所述第一管理单元可以根据所述业务请求消息中的所述至少一种信息来确定所述优先级信息。通过本设计，给出了第一管理单元确定优先级信息的具体方式。
在一个可能的设计中，还可以通过以下方式来确定优先级信息：所述第一管理单元根据所述业务的业务需求信息，确定所述业务的网络需求，所述第一管理单元根据所述业务的网络需求，确定所述优先级信息；其中，所述业务需求信息包括以下至少一种：业务类型、安全等级、隔离等级、吞吐量、覆盖范围、业务服务质量要求；所述网络需求信息包括以下至少一种：时延要求、带宽要求、网络的服务质量要求。通过本设计，给出了第一管理单元确定优先级信息的另一种具体方式。
在一个可能的设计中，所述第一管理单元获取业务请求消息，具体的，第一管理单元可以从通信业务提供方来接收所述业务请求消息，也可以通过用户发送业务请求消息。若是从通信业务提供方接收所述业务请求消息，那么所述业务请求消息中可能会携带所述优先级信息，则所述第一管理单元从所述业务请求消息中获取所述优先级信息。通过本设计，给出了第一管理单元获取优先级信息的一种具体方式。
第二方面，提供一种网络切片的选择方法，该方案的执行主体为第二管理单元，例如第二管理单元可以是网络切片管理功能NSMF，该方法的具体步骤为：第二管理单元从第一管理单元接收网络切片请求消息，所述网络切片请求消息中携带第一优先级信息，所述第一优先级信息用于指示租户的优先级或租户的业务的优先级；所述第二管理单元根据所述第一优先级信息，为所述租户的所述业务选择网络切片。这样，在多个租户共享一个网络切片的场景下，能够按照租户的优先级或者业务的优先级，为优先级较高的业务分配适应的网络切片，优先保障高优先级业务的性能，保障了一个网络切片内多个租户的资源分配的合理性和有效性。
在一个可能的设计中，所述第二管理单元根据所述第一优先级信息，为所述租户的所述业务选择网络切片，具体为：所述第二管理单元确定与所述第一优先级信息相匹配的第二优先级信息，所述第二优先级信息用于指示所述网络切片的优先级；所述第二管理单元为所述租户的所述业务选择具有所述第二优先级信息的所述网络切片。这样能够为租户的业务选择到相匹配的网络切片，保证业务的性能。
在一个可能的设计中，所述第二管理单元创建所述网络切片，根据所述网络切片的第一切片性能信息，为所述网络切片配置所述第二优先级信息；或者，若所述网络切片为已经创建完的网络切片，则所述第二管理单元获取所述网络切片的第二切片性能信息，根据所述第二切片性能信息动态更新所述网络切片的优先级信息，更新后的优先级信息为所述第二优先级信息。
在一个可能的设计中，所述第一切片性能信息和所述第二切片性能信息均包括以下至少一种：时延要求、带宽要求、网络的服务质量要求。
第三方面，提供一种网络切片优先级的确定方法，该方法的执行主体为管理单元，可以记为第二管理单元，例如可以是网络切片管理功能NSMF。具体方法为：管理单元创建第一网络切片实例NSI，根据所述第一NSI的第一切片性能信息，为所述第一NSI配置优先级信息；或者，所述管理单元获取第二NSI的第二切片性能信息，根据所述第二切片性能信息为所述第一NSI更新优先级信息，所述第二NSI为已创建完的NSI。这样，能够通过创建并维护网络切片的优先级信息，准确的为业务分配优先级匹配的网络切片，保障业务的性能。
在一个可能的设计中，所述第一切片性能信息和所述第二切片性能信息均包括以下至少一种：时延要求、带宽要求、网络的服务质量要求。
第四方面，提供一种网络切片的选择装置，具有实现上述第一方面或第一方面的任一种可能的设计中的第一管理单元行为的功能，其包括用于执行上述方法所描述的步骤或功能相对应的部件(means)。所述步骤或功能可以通过软件实现，或硬件(如电路)实现，或者通过硬件和软件结合来实现。
在一个可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述网络切片的选择装置执行上述方法中第一管理单元相应的功能。例如获取业务请求消息，根据所述业务请求消息，向第二管理单元发送网络切片请求消息。所述通信单元用于支持所述网络切片的选择装置与其他设备通信，实现接收和/或发送功能。例如，向第二管理单元发送网络切片请求消息。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存装置必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也可以与处理器分离设置。本申请并不限定。
所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述网络切片的选择装置，包括收发器、处理器和存储器。该处理器用于控制收发器或输入/输出电路收发信号，该存储器用于存储计算机程序，该处理器用于运行该存储器中的计算机程序，使得该装置执行第一方面或第一方面中任一种可能的设计中第一管理单元完成的方法。
可选的，所述网络切片的选择装置可以是通信业务管理功能CSMF。
第五方面，提供一种网络切片的选择装置，具有实现上述第二方面、第三方面、第二方面的任一种可能的设计或第三方面的任一种可能的设计中的第二管理单元行为的功能，其包括用于执行上述方法所描述的步骤或功能相对应的部件(means)。所述步骤或功能可以通过软件实现，或硬件(如电路)实现，或者通过硬件和软件结合来实现。
在一个可能的设计中，上述装置包括一个或多个处理器和通信单元。所述一个或多个处理器被配置为支持所述网络切片的选择装置执行上述方法中第二管理单元相应的功能。例如根据所述第一优先级信息，为所述租户的所述业务选择网络切片。所述通信单元用于支持所述网络切片的选择装置与其他设备通信，实现接收和/或发送功能。例如，从第一管理单元接收网络切片请求消息。
可选的，所述装置还可以包括一个或多个存储器，所述存储器用于与处理器耦合，其保存装置必要的程序指令和/或数据。所述一个或多个存储器可以和处理器集成在一起，也 可以与处理器分离设置。本申请并不限定。
所述通信单元可以是收发器，或收发电路。可选的，所述收发器也可以为输入/输出电路或者接口。
所述装置还可以为通信芯片。所述通信单元可以为通信芯片的输入/输出电路或者接口。
另一个可能的设计中，上述网络切片的选择装置，包括收发器、处理器和存储器。该处理器用于控制收发器或输入/输出电路收发信号，该存储器用于存储计算机程序，该处理器用于运行该存储器中的计算机程序，使得该装置执行上述第二方面、第三方面、第二方面的任一种可能的设计或第三方面的任一种可能的设计中第二管理单元完成的方法。
可选的，所述网络切片的选择装置可以是网络切片管理功能NSMF。
第六方面，提供了一种系统，该系统包括上述第四方面和第五方面提供的网络切片的选择装置。
第七方面，提供了一种计算机可读存储介质，用于存储计算机程序，该计算机程序包括用于执行第一方面、第二方面、第一方面中任一种可能的设计或第二方面中任一种可能的设计中的方法的指令。
第八方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码在计算机上运行时，使得计算机执行上述第一方面、第二方面、第一方面中任一种可能的设计或第二方面中任一种可能的设计中的方法。
附图说明
图1为本申请实施例中系统架构示意图；
图2为本申请实施例中网络切片的选择方法的流程示意图之一；
图3为本申请实施例中网络切片的选择方法的流程示意图之二；
图4为本申请实施例中网络切片的选择装置结构示意图之一；
图5为本申请实施例中网络切片的选择装置结构示意图之二；
图6为本申请实施例中网络切片的选择装置结构示意图之三。
具体实施方式
本申请实施例提供一种网络切片选择方法及装置，用以保障高优先级租户或者高优先级业务的性能。其中，方法和装置是基于同一发明构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。本申请实施例的描述中，“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。本申请中所涉及的至少一个是指一个或多个；多个，是指两个或两个以上。另外，需要理解的是，在本申请的描述中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。
下面将结合附图，对本申请实施例进行详细描述。
本申请实施例提供的网络切片选择方法可以适用于不同的无线接入技术的通信系统中，例如，长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)通 信系统等更多可能的通信系统中。
图1示例性示出了本申请实施例适用的一种系统架构示意图，本申请实施例并不限于图1所示的系统架构中。如图1所示，本申请实施例提供的系统架构可以包括以下至少一个逻辑功能节点：通信服务提供商(communication service provider，CSP)101、通信业务管理功能(communication service management function，CSMF)102、网络切片管理功能(network slicing management function，NSMF)103、子网切片管理功能(network slicing subnet management function，NSSMF)104、网络功能(network function，NF)105。其中，CSP用于向CSMF下发租户的业务信息；CSMF用于接收CSP下发的租户的业务信息，进行业务管理，将业务需求转化为网络需求；NSMF用于网络切片管理和切片业务的提供；NSSMF用于子网络切片管理和子网切片业务的提供；NF用于网络功能管理和网络功能业务的提供，NF可以与NSSMF或NSMF连接。图1所示的各个逻辑功能节点可以是硬件，也可以是从功能上划分的软件或者以上二者结合后的结构，以上各个逻辑功能节点可以集成在一个网元中，也可以分布在不同的网元中。上述逻辑功能节点又可以称为功能模块。
图1所示的系统架构是本申请实施例能够适用的一种示例性的架构，本申请实施例提供的方法还可以应用于其他系统架构中。本领域技术人员可以将图1所示的系统架构中的各个逻辑功能节点的名称更换为其它名称，当执行相同的功能时，属于本申请保护的范围。
本申请的描述中，租户可以是指运营商网络的租用者，比如，电力公司租用运营商的网络部署智能抄表业务，那么电力公司就可以认为是该运营商的一个租户。一个租户下可以有多个用户，每个用户均可以发起业务。例如，电力公司下的一个智能抄表装置可以认为是一个用户，用户请求读取表的数值视为一个业务。又例如，汽车公司的一个汽车可以认为是一个用户，无人驾驶中的通信业务。又例如，视频网站的超高清大流量的视频业务。
在每种网络切片类型下，可以部署一个或多个网络切片实例。一个网络切片实例是一个静态的网络，是指在物理或者虚拟的网络基础设施上，根据不同的服务需求定制化不同的逻辑网络。网络切片实例可以是一个包括终端、接入网、传输网、核心网和应用服务器的完整的端到端网络，能够提供完整的通信服务，具有一定网络能力。网络切片实例也可以是终端、接入网、传输网、核心网和应用服务器的任意组合。本申请实施例的描述中，为租户(或业务)选择网络切片，可以是指为租户(或业务)选择网络切片实例。
基于图1所示的系统架构，如图2所示，本申请实施例提供的网络切片的选择方法的流程如下所述。以下叙述中，第一管理单元为具有CSMF功能的单元。通信业务提供方还可以称为租户业务提供方或者运营商，为具有CSP功能的单元。第二管理单元为具有NSMF功能的单元，第三管理单元为具有NSSMF功能的单元，第四管理单元为具有NF功能的单元。
S201、第一管理单元获取或接收业务请求消息。
具体的，该业务请求消息可以是用户发起的，也可以是通信业务提供方发起的。例如，通信业务提供方向第一管理单元发送业务请求消息，第一管理单元从通信业务提供方接收该业务请求消息。
具体的，当租户下的用户有业务发生时，第一管理单元会接收到业务请求消息，该业务请求消息用于发起该租户的业务的请求。
该业务请求消息中可以携带该业务的业务需求信息，其中，该业务需求信息可以包括以下至少一个：业务类型、安全等级、隔离等级、吞吐量(或速率)、覆盖范围、业务服 务质量要求(quality of service，QoS)。
S202、第一管理单元根据S201中接收到的业务请求消息，向第二管理单元发送优先级信息，第二管理单元接收第一管理单元发送的优先级信息。
其中，该优先级信息用于指示该租户的优先级，或指示该租户下的该业务的优先级，或者用于指示该租户的优先级和该租户下的该业务的优先级。该优先级信息用于辅助该第二管理单元为该租户的该业务选择网络切片。
本申请实施例中的优先级信息可以是一个指示(indicator)，例如，该指示的值用0、1、2、……来表示，若指示的值为0，表示该业务的优先级最高，该指示的值为1、2、……，表示该业务的优先级依次降低。
具体的，第一管理单元可以通过以下几种可能的实现方式来确定优先级信息。
一种可能的实现方式中，通信业务提供方向第一管理单元指示该优先级信息，第一管理单元根据通信业务提供方的指示来确定优先级信息，可选的，该指示可以通过业务请求消息来体现。例如，通信业务提供方向第一管理单元发送业务请求消息，在业务请求消息中携带该优先级信息，第一管理单元从通信业务提供方接收该优先级信息，从该业务请求消息中获取该优先级信息。
另一种可能的实现方式中，第一管理单元获取业务请求消息，将业务请求消息中的业务需求转化为网络需求，也就是，第一管理单元根据业务需求信息确定该业务的网络需求，业务需求信息如S201中所述，该业务的网络需求可以包括以下至少一种：时延要求、带宽要求、网络的QoS。第一管理单元根据该业务的网络需求来确定该优先级信息。具体实现时，各个类型的网络需求具有权重属性，第一管理单元可以按照各个类型的网络需求的权重进行加权获得该业务的优先级。例如，该业务对时延要求很高，则将业务时延这一类型的网络需求的权重值设置高一点。
再一种可能的实现方式中，S201中业务请求消息中可以携带业务需求信息之外，还可以携带该租户的标识(ID)和/或该业务的标识(ID)，第一管理单元可以根据该租户的ID、该业务的ID和业务需求信息之中的任意一种或多种，来确定该优先级信息。具体实现时，各个类型的业务需求信息具有权重属性，第一管理单元可以按照各个类型的业务需求信息的权重进行加权获得该业务的优先级。例如，该业务对时延要求很高，则将业务时延这一类型的业务需求信息的权重值设置高一点。
上述几种可能的确定优先级信息的方式可以结合使用，也可以单独使用。
第一管理单元向第二管理单元发送该优先级信息，可以通过以下方式实现。
第一管理单元向第二管理单元发送网络切片请求消息，在网络切片请求消息中携带该优先级信息，第二管理单元从第一管理单元接收该网络切片请求消息，获取该网络切片请求消息中携带的该优先级信息。
其中，网络切片请求用于请求为该业务选择网络切片。该网络切片请求消息中还可能携带租户ID、业务ID或该业务的网络需求的信息中的一个或多个。
S203、第二管理单元按照该优先级信息为该租户的该业务选择网络切片。
其中，第二管理单元为该业务选择网络切片，可以是指为该业务分配已有的网络切片，也可以是指为该业务创建新的网络切片。具体的，第二管理单元会按照该业务的优先级信息确定将该业务承载在与该优先级匹配的网络切片上。例如，第二管理单元会将高优先级的业务独立承载在一个网络切片上，将低优先级的业务承载在共享的网络切片上，共享是 指该业务与其他业务共同承载在这个网络切片上。这样，能够优先保障高优先级业务的性能。其中，第二管理单元可以预存优先级与网络切片的映射关系，并根据该映射关系为业务分配与其优先级对应的网络切片。
在S203之后，执行S204和S205，或者，执行S204’和S205’。
S204、第二管理单元向第三管理单元发送子网络切片请求消息，第三管理单元接收第二管理单元发送的子网络切片请求消息。
该子网络切片请求中携带优先级信息，该优先级信息为第二管理单元从第一管理单元接收的优先级信息。该子网络切片请求还可以携带租户标识、业务标识或租户业务的子网需求中的一个或多个。
子网络切片请求用于请求为该业务选择子网络切片。实际应用中，网络切片可以是跨域的，例如，网络切片跨接入网、核心网和传输网等多个域，在每个域分配一个子切片，各个子切片组合在一起成为网络切片。
其中，该租户业务的子网需求的种类可以参照上文对网络需求的介绍，即，可以包括以下至少一种：时延要求、带宽要求或子网络的QoS。网络需求分解到多个域的子网络切片形成多个子网需求，比如，时延要求为10ms，网络切片跨接入网、核心网和传输网三个域，由三个子网络切片组成，那么三个子网络切片的子网需求可以分别为3ms、3ms和4ms。
S205、第三管理单元在接收到第二管理单元发送的子网络切片请求消息后，根据子网络切片请求消息中的优先级信息，按照该优先级信息为该租户的该业务选择子网络切片。
类似的，第三管理单元在为该业务选择子网络切片时，会按照该业务的优先级将该业务承载在与优先级匹配的子网络切片上。例如，第三管理单元会将高优先级的业务独立承载在一个子网络切片上，将低优先级的业务承载在共享的子网络切片上，这样，能够优先保障高优先级业务的性能。第三管理单元也可以预先存储优先级与子网络切片的映射关系，并根据该映射关系为业务分配与其优先级对应的子网络切片。
S204’、第二管理单元向第四管理单元发送NF配置消息，第四管理单元接收第二管理单元发送的NF配置消息。
该NF配置消息中携带优先级信息，该优先级信息为第二管理单元从第一管理单元接收的。该NF配置消息中还可以携带租户标识、业务标识或租户业务的NF网络需求中的一个或多个。
NF配置消息用于为该租户的该业务选择NF。
其中，该租户业务的NF网络需求的种类也可以参照上述对网络需求的介绍，即，该租户业务的NF网络需求可以包括以下至少一种：时延要求、带宽要求或NF网络的QoS。类似网络切片与子网络切片的关系，子网络切片也可以由多个NF构成，子网络需求分解为多个NF网络需求。
S205’、第四管理单元在接收到第二管理单元发送的NF配置消息后，根据NF配置消息中的优先级信息，对该租户的业务进行处理。
具体的，第四管理单元优先处理高优先级的业务。例如，当有两个或两个以上的业务需要接入NF，NF不能同时处理时，NF会优先接入优先级较高的业务。
通过上述网络切片的选择方法，在多个租户共享一个网络切片的场景下，能够按照租户的优先级或者业务的优先级，为优先级较高的业务分配适应的网络切片，优先保障高优先级业务的性能，保障了一个网络切片内多个租户的资源分配的合理性和有效性。
基于上述网络切片的选择方法以及系统架构等描述，为了使本申请的方案更加详细，以下结合具体的应用场景，对本申请的网络切片的选择方法做更进一步详细的描述。
以下应用场景的描述中，通信业务提供方为CSP，第一管理单元为CSMF，第二管理单元为NSMF，第三管理单元为NSSMF，第四管理单元为NF。
如图3所示，在一种应用场景下网络切片选择方法的流程如下所述。
S301、CSP向CSMF发送业务请求消息。
该业务请求消息中携带该业务的业务需求信息，其中，该业务需求信息可以包括以下至少一个：业务类型、安全等级、隔离等级、吞吐量(或速率)、覆盖范围、业务服务质量要求(quality of service，QoS)。
一种可能的设计中，该业务请求消息中可能携带该业务的优先级信息。
S302、CSMF将租户业务的业务需求信息转化为网络需求。
该业务的网络需求可以包括以下至少一种：时延要求、带宽要求、网络的QoS。CSMF可以根据该业务的网络需求来确定该优先级信息。
S303、CSMF向NSMF发送网络切片请求消息(NSI请求消息)，NSMF接收CSMF发送的网络切片请求消息。
该网络切片请求消息中可能携带该租户业务的网络需求，也可能携带该业务的优先级信息，或者两者都携带。
S304、NSMF为业务分配网络切片或者创建新的网络切片。
具体的，NSMF按照该租户业务的网络需求为该业务分配或创建网络切片，能够保障该业务的性能。或者，NSMF根据该业务的优先级信息，为该业务分配与优先级匹配的网络切片。
举例来说，NSMF接收到租户业务1和租户业务2的NSI请求，租户业务1和租户业务2的网络时延要求均为1ms，NSI1的时延为0.5ms，NSI2的时延为1ms，由于租户业务1的子网优先级高，则NSMF将租户业务1承载在NSI1上，将租户业务2承载在NSI2上。
在S304之后，可以执行S305～S306或者S307～S308，或者S305～S308，S305～S306与S307～S308没有严格的执行顺序。
S305、NSMF向NSSMF发送NSSI请求，NSSMF接收NSMF发送的NSSI请求。
该NSSI请求中携带租户标识、业务标识、优先级信息或租户子网需求。
S306、NSSMF为该业务分配NSSI。
NSSMF根据优先级信息为该业务分配与优先级匹配的子网络切片；或者，NSSMF根据该租户子网需求为该业务分配或创建子网络切片，能够保障该业务的性能。
举例来说，NSSMF接收到租户业务1和租户业务2的NSSI请求，租户业务1和租户业务2的子网时延要求均为1ms，NSSI1的时延为0.5ms，NSSI2的时延为1ms，由于租户业务1的子网优先级高，则NSSMF将租户业务1承载在NSSI1上，将租户业务2承载在NSSI2上。
S307、NSMF向NF发送NF配置消息，NF接收NSMF发送的NF配置消息。
该NF配置消息可能携带NF网络需求、租户标识、业务标识或优先级信息。
S308、NF为该业务选择需要接入的NF。
NF根据优先级信息为该业务选择接入的NF，或者，NF根据该NF网络需求为该业务选择接入的NF。优先保障高优先级业务的性能。
举例来说，NF同时接收到租户业务1和租户业务2的NF配置消息，但是NF不能同时处理，由于租户业务1的优先级高，则NF优先接入租户业务1的用户。
本申请实施例中，第二管理单元(或者NSMF)还可以对网络切片实例NSI的优先级信息进行创建并维护。
具体地，当第二管理单元在创建新的网络切片实例时，为该NSI配置优先级信息。例如，根据网络切片实例的切片性能信息来配置优先级信息，切片性能信息可以是指该网络切片实例对应的时延要求、带宽要求、网络的服务质量要求的相关信息。
第二管理单元还可以对已经创建的网络切片实例的优先级信息进行动态更新，也就是进行维护。第二管理单元动态获取已经创建的网络切片实例的切片性能信息，该切片性能信息是从第三管理单元(NSSMF)处获取的子网切片性能信息组合而成，组合方法不限定。同样的，切片性能信息可以是指该网络切片实例对应的时延要求、带宽要求、网络的服务质量要求的相关信息。第二管理单元根据切片性能信息，动态更新该已经创建好的网络切片实例的优先级信息。
类似的，切片性能信息可以有多个类型，第二管理单元可以根据各个类型的切片性能信息的权重进行加权，得出网络切片实例的优先级信息。
第二管理单元在为业务选择合适的网络切片时，可以根据业务的优先级信息和网络切片实例的优先级信息，为业务选择相匹配的网络切片实例。
基于上述方法的同一发明构思，如图4所示，本申请实施例还提供了一种网络切片的选择装置400，该网络切片的选择装置400用于执行上述方法实施例中第一管理单元执行的操作。该网络切片的选择装置400包括处理单元401和发送单元402。其中：
处理单元401，用于获取业务请求消息，所述业务请求消息用于针对租户的业务发起业务请求；
发送单元402，用于根据所述业务请求消息，向第二管理单元发送网络切片请求消息，所述网络切片请求消息中携带优先级信息，所述优先级信息用于指示所述租户的优先级或所述业务的优先级，所述优先级信息用于所述第二管理单元为所述租户的所述业务选择网络切片。
处理单元401，还用于根据所述业务请求消息，确定所述优先级信息。
确定方法可以是以下几种。
例如，处理单元401，用于根据所述业务请求消息中的所述至少一种信息，确定所述优先级信息。所述业务请求消息中包括以下至少一种信息：所述租户的标识信息、所述业务的标识信息和所述业务的业务需求信息，其中，所述业务需求信息包括以下至少一种：业务类型、安全等级、隔离等级、吞吐量、覆盖范围、业务服务质量要求。
又例如，发送单元402在根据所述业务请求消息时确定所述优先级信息，用于根据所述业务的业务需求信息，确定所述业务的网络需求，根据所述业务的网络需求，确定所述优先级信息；其中，所述业务需求信息包括以下至少一种：业务类型、安全等级、隔离等级、吞吐量、覆盖范围、业务服务质量要求；所述网络需求信息包括以下至少一种：时延要求、带宽要求、网络的服务质量要求。
若发送单元402从通信业务提供方接收所述业务请求消息，所述业务请求消息中携带所述优先级信息；则发送单元402从所述业务请求消息中获取所述优先级信息。
基于上述方法的同一发明构思，如图5所示，本申请实施例还提供了一种网络切片的 选择装置500，该网络切片的选择装置500用于执行上述方法实施例中第二管理单元执行的操作。该网络切片的选择装置500包括接收单元501和处理单元502。其中：
接收单元501，用于从第一管理单元接收网络切片请求消息，所述网络切片请求消息中携带第一优先级信息，所述第一优先级信息用于指示租户的优先级或租户的业务的优先级；
处理单元502，用于根据所述第一优先级信息，为所述租户的所述业务选择网络切片。
在一个可能的设计中，在根据所述第一优先级信息为所述租户的所述业务选择网络切片时，处理单元502用于：确定与所述第一优先级信息相匹配的第二优先级信息，所述第二优先级信息用于指示所述网络切片的优先级；为所述租户的所述业务选择具有所述第二优先级信息的所述网络切片。
处理单元502还用于，创建所述网络切片，根据所述网络切片的第一切片性能信息，为所述网络切片配置所述第二优先级信息；
或者，若所述网络切片为已经创建完的网络切片，则处理单元502还用于获取所述网络切片的第二切片性能信息，根据所述第二切片性能信息动态更新所述网络切片的优先级信息，更新后的优先级信息为所述第二优先级信息。
可选的，所述第一切片性能信息和所述第二切片性能信息均包括以下至少一种：时延要求、带宽要求、网络的服务质量要求。
基于与上述方法实施例的同一发明构思，如6所示，本申请实施例还提供了一种网络切片的选择装置600，该网络切片的选择装置600包括：收发器601、处理器602、存储器603。存储器603为可选的。存储器63用于存储处理器602执行的程序。当该网络切片的选择装置600用于实现上述方法实施例中第一管理单元执行的操作时，处理器602用于调用一组程序，当程序被执行时，使得处理器602执行上述方法实施例中第一管理单元执行的操作。图4中的功能模块发送单元402可以通过收发器601来实现，处理单元401可以通过处理器602来实现。当该网络切片的选择装置600用于实现上述方法实施例中第二管理单元执行的操作时，处理器602用于调用一组程序，当程序被执行时，使得处理器602执行上述方法实施例中第二管理单元执行的操作。图5中的功能模块接收单元501可以通过收发器601来实现，处理单元502可以通过处理器602来实现。
其中，处理器602可以是中央处理器(central processing unit，CPU)，网络处理器(network processor，NP)或者CPU和NP的组合。
处理器602还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(application-specific integrated circuit，ASIC)，可编程逻辑器件(programmable logic device，PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(complex programmable logic device，CPLD)，现场可编程逻辑门阵列(field-programmable gate array，FPGA)，通用阵列逻辑(generic array logic,GAL)或其任意组合。
存储器603可以包括易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)；存储器603也可以包括非易失性存储器(non-volatile memory)，例如快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器603还可以包括上述种类的存储器的组合。
在本申请上述实施例提供的通信方法中，所描述的终端和网络设备所执行的操作和功能中的部分或全部，可以用芯片或集成电路来完成。
为了实现上述图4、图5和图6所述的装置的功能，本申请实施例还提供一种芯片，包括处理器，用于支持该装置实现上述方法实施例中第一管理单元和第二管理单元所涉及的功能。在一种可能的设计中，该芯片与存储器连接或者该芯片包括存储器，该存储器用于保存该装置必要的程序指令和数据。
本申请实施例提供了一种计算机存储介质，存储有计算机程序，该计算机程序包括用于执行上述实施例提供的方法实施例的指令。
本申请实施例提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述实施例提供的方法实施例。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (15)

  1. 一种网络切片的选择方法，其特征在于，包括：
    第一管理单元获取业务请求消息，所述业务请求消息用于针对租户的业务发起业务请求；
    所述第一管理单元根据所述业务请求消息，向第二管理单元发送网络切片请求消息，所述网络切片请求消息中携带优先级信息，所述优先级信息用于指示所述租户的优先级或所述业务的优先级，所述优先级信息用于所述第二管理单元为所述租户的所述业务选择网络切片。
  2. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一管理单元根据所述业务请求消息，确定所述优先级信息。
  3. 如权利要求2所述的方法，其特征在于，所述业务请求消息中包括以下至少一种信息：所述租户的标识信息、所述业务的标识信息和所述业务的业务需求信息，其中，所述业务需求信息包括以下至少一种：业务类型、安全等级、隔离等级、吞吐量、覆盖范围、业务服务质量要求；
    所述第一管理单元根据所述业务请求消息，确定所述优先级信息，包括：
    所述第一管理单元根据所述业务请求消息中的所述至少一种信息，确定所述优先级信息。
  4. 如权利要求2所述的方法，其特征在于，所述第一管理单元根据所述业务请求消息，确定所述优先级信息，包括：
    所述第一管理单元根据所述业务的业务需求信息，确定所述业务的网络需求，所述第一管理单元根据所述业务的网络需求，确定所述优先级信息；
    其中，所述业务需求信息包括以下至少一种：业务类型、安全等级、隔离等级、吞吐量、覆盖范围、业务服务质量要求；所述网络需求信息包括以下至少一种：时延要求、带宽要求、网络的服务质量要求。
  5. 如权利要求1所述的方法，其特征在于，所述第一管理单元获取业务请求消息，包括：
    所述第一管理单元从通信业务提供方接收所述业务请求消息，所述业务请求消息中携带所述优先级信息；
    所述方法还包括：所述第一管理单元从所述业务请求消息中获取所述优先级信息。
  6. 一种网络切片的选择方法，其特征在于，包括：
    第二管理单元从第一管理单元接收网络切片请求消息，所述网络切片请求消息中携带第一优先级信息，所述第一优先级信息用于指示租户的优先级或租户的业务的优先级；
    所述第二管理单元根据所述第一优先级信息，为所述租户的所述业务选择网络切片。
  7. 如权利要求6所述的方法，其特征在于，所述第二管理单元根据所述第一优先级信息，为所述租户的所述业务选择网络切片，包括：
    所述第二管理单元确定与所述第一优先级信息相匹配的第二优先级信息，所述第二优先级信息用于指示所述网络切片的优先级；
    所述第二管理单元为所述租户的所述业务选择具有所述第二优先级信息的所述网络切片。
  8. 如权利要求7所述的方法，其特征在于，所述方法还包括：
    所述第二管理单元创建所述网络切片，根据所述网络切片的第一切片性能信息，为所述网络切片配置所述第二优先级信息；或者，
    若所述网络切片为已经创建完的网络切片，则所述第二管理单元获取所述网络切片的第二切片性能信息，根据所述第二切片性能信息动态更新所述网络切片的优先级信息，更新后的优先级信息为所述第二优先级信息。
  9. 如权利要求8所述的方法，其特征在于，所述第一切片性能信息和所述第二切片性能信息均包括以下至少一种：时延要求、带宽要求、网络的服务质量要求。
  10. 一种网络切片的选择装置，其特征在于，包括：
    处理器，用于与存储器耦合，调用所述存储器中的程序，执行所述程序以实现如权利要求1-5任意一项所述的方法。
  11. 一种网络切片的选择装置，其特征在于，包括：
    处理器，用于与存储器耦合，调用所述存储器中的程序，执行所述程序以实现如权利要求6-9任意一项所述的方法。
  12. 一种计算机可读存储介质，其特征在于，所述计算机存储介质中存储有计算机可读指令，当计算机读取并执行所述计算机可读指令时，使得计算机执行如权利要求1-9任意一项所述的方法。
  13. 一种计算机程序产品，其特征在于，当计算机读取并执行所述计算机程序产品时，使得计算机执行如权利要求1-9任意一项所述的方法。
  14. 一种芯片，其特征在于，所述芯片与存储器相连或者所述芯片包括所述存储器，用于读取并执行所述存储器中存储的软件程序，以实现如权利要求1-9任意一项所述的方法。
  15. 一种通信系统，其特征在于，包括第一管理单元和第二管理单元；
    其中，所述第一管理单元用于执行如权利要求1-5任一项所述的方法；
    所述第二管理单元用于执行如权利要求6-9任一项所述的方法。
PCT/CN2019/105479 2018-09-12 2019-09-11 一种网络切片的选择方法及装置 WO2020052605A1 (zh)

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