WO2019196796A1 - 通信方法与装置 - Google Patents

通信方法与装置 Download PDF

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Publication number
WO2019196796A1
WO2019196796A1 PCT/CN2019/081750 CN2019081750W WO2019196796A1 WO 2019196796 A1 WO2019196796 A1 WO 2019196796A1 CN 2019081750 W CN2019081750 W CN 2019081750W WO 2019196796 A1 WO2019196796 A1 WO 2019196796A1
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WIPO (PCT)
Prior art keywords
network slice
access
network
parameter
policy
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PCT/CN2019/081750
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English (en)
French (fr)
Inventor
黄亚达
武绍芸
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华为技术有限公司
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Publication of WO2019196796A1 publication Critical patent/WO2019196796A1/zh

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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
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003—Managing SLA; Interaction between SLA and QoS
    • 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
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003—Managing SLA; Interaction between SLA and QoS
    • H04L41/5009—Determining service level performance parameters or violations of service level contracts, e.g. violations of agreed response time or mean time between failures [MTBF]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present application relates to the field of communications, and in particular, to a communication method and apparatus.
  • the fifth generation mobile communication system (the fifth generation, 5G) introduced the network slice (NS). Concept to address the differences in network performance requirements of different communication services.
  • Network slicing refers to a collection of logical network functional entities that support specific communication service requirements.
  • the software is defined by means of software defined network (SDN) technology and network function virtualization (NFV) technology.
  • SDN software defined network
  • NFV network function virtualization
  • Service A network slice satisfies the connection communication service requirements of a certain class or a use case.
  • the entire network system consists of a large number of network slices that satisfy different connection capabilities.
  • Network slicing is end-to-end, including radio access networks, transport networks, and core networks.
  • the radio access network, the transport network, and the core network are all sliced, so that multiple segments of the network slices are connected together to form an overall network slice that provides a complete service for the user. Different parts of the network slices are logically isolated, and infrastructure network resources are shared.
  • SLA Service-Level Agreement
  • the present application provides a communication method and apparatus.
  • the service quality of the network slice can be guaranteed to a certain extent.
  • the first aspect provides a communication method, where the method includes: acquiring, by a core network device, a policy parameter of a network slice, where the policy parameter of the network slice includes at least one of the following parameters: an access control policy parameter, a scheduling control policy parameter, and The bandwidth control policy parameter; the core network device sends the policy parameter of the network slice to the access network device corresponding to the network slice, so that the access network device determines the relevant policy of the network slice according to the policy parameter of the network slice.
  • the core network device acquires a policy parameter of the network slice by using NWDAF.
  • the core network device acquires a policy parameter of the network slice according to a predefined algorithm.
  • the core network device sends a notification message to the access network device, where the notification message carries the policy parameter of the network slice and the slice identifier of the network slice.
  • the access network device receives the notification message from the core network device, and the access network device obtains the slice identifier of the network slice and the policy parameter of the network slice by parsing the notification message.
  • the slice identifier of the network slice refers to information capable of uniquely identifying the network slice.
  • the access network device can identify the network slice according to the slice identifier.
  • the network slice by setting the policy parameters of the network slice and then processing the network slice according to the policy parameters of the network slice, the network slice can be differentiated, which is beneficial to improving the service quality of the network slice.
  • the priority of the network slice is an access class priority related to an access control policy, where a higher access class priority is relative to The lower access category priority priority access network.
  • the access class priority of the network slice is set, and then the access control policy of the network slice is configured according to the access class priority of the network slice, so that the number of users allowed to access the network slice can be controlled. To the extent that the quality of service for network slicing is guaranteed.
  • the policy parameter of the network slice is an access class priority
  • the core network device acquiring the policy parameter of the network slice, including: the core network device All network slices in the system are divided into at least two access categories, and the access class priority is set according to the at least two access categories; the core network device obtains the policy parameter of the network slice, and the policy parameter of the network slice is The access class priority corresponding to the access category to which the network slice belongs.
  • the method further includes: the core network device notifying the terminal device of an access category of the network slice, where the terminal device establishes a contract relationship with the network slice Terminal equipment.
  • the policy parameter of the network slice is an access control parameter or an access control parameter.
  • the method further includes: the core network device notifying the terminal device of an access category of the network slice, where the terminal device establishes a contract relationship with the network slice Terminal equipment.
  • the policy parameter of the network slice is a scheduling control policy parameter.
  • the scheduling control policy parameter is a scheduling priority, wherein a higher scheduling priority preferentially performs resource scheduling with respect to a lower scheduling priority.
  • the service quality of the network slice can be guaranteed to a certain extent.
  • the policy parameter of the network slice is a bandwidth control policy parameter.
  • the bandwidth of the network slice can be flexibly configured, and the service quality of the network slice can be guaranteed to a certain extent.
  • the core network device sends the policy parameter of the network slice to the access network device corresponding to the network slice, including: the core network device passes the user plane or Controlling policy parameters for transmitting the network slice to the access network device.
  • the core network device sends the policy parameter of the network slice to the access network device corresponding to the network slice, where: the core network device passes the access and The mobility management function AMF sends the policy parameters of the network slice to the access network device.
  • the core network device sends the policy parameter of the network slice to the access network device corresponding to the network slice, including: when a policy parameter of the network slice occurs When the change is made, the core network device sends the policy parameter after the network slice change to the access network device.
  • the embodiment of the present application When determining the policy parameters of the network slice or changing the policy parameters of the network slice for the first time, the embodiment of the present application notifies the access network device, so that the access network device configures according to the policy parameters of the network slice to ensure the service of the network slice. quality.
  • a communication method includes: an access network device receiving a policy parameter of a network slice from a core network device, where the policy parameter of the network slice includes at least one of the following parameters: an access control policy parameter, and a scheduling Controlling policy parameters and bandwidth control policy parameters; the access network device determines a related strategy of the network slice according to the policy parameters of the network slice.
  • the policy parameter of the network slice is an access control policy parameter, where the access network device determines the network slice according to the policy parameter of the network slice
  • the related policy includes: determining, by the access network device, an access control parameter of the network slice according to an access control policy parameter of the network slice.
  • the policy parameter of the network slice is an access control parameter or an access control parameter.
  • the method further includes: the access network device generating an access control parameter of the network slice according to an access control policy parameter of the network slice; The access network device sends a broadcast message to the terminal device, where the broadcast message carries the access control parameter of the network slice, and the terminal device establishes a contract relationship with the network slice.
  • the policy parameter of the network slice is a scheduling control policy parameter
  • the access network device determines the correlation of the network slice according to the policy parameter of the network slice
  • the policy includes: determining, by the access network device, a policy for scheduling resources of a terminal device that accesses the network slice according to a scheduling control policy parameter of the network slice.
  • the policy parameter and the bandwidth control policy parameter of the network slice; wherein the access network device determines the correlation of the network slice according to the policy parameter of the network slice includes: the access network device determines a policy for allocating bandwidth for the terminal device accessing the network slice according to the bandwidth control policy parameter of the network slice.
  • the access network device receives the policy parameter of the network slice from the core network device, including: the access network device accessing and mobility management function AMF
  • the policy parameters of the network slice are received from the core network device.
  • the access network device receives the policy parameter of the network slice from the core network device, including: when the policy parameter of the network slice changes, the access The network device receives the policy parameters of the network slice change from the core network device.
  • the access network device receives the policy parameter of the network slice from the core network device, where the access network device receives the notification message from the core network device,
  • the notification message carries the policy parameter of the network slice and the slice identifier of the network slice.
  • a communication method includes: receiving, by a terminal device, an access category of a network slice sent by a core network device; and receiving, by the terminal device, an access control parameter sent by the access network device, where the access control parameter includes An access control parameter of the network slice determined according to an access control policy parameter of the network slice sent by the core network; the terminal device determines the network in a parameter received from the access network device according to the access type of the network slice The access control parameter of the slice; the terminal device performs the access process of the network slice according to the access control parameter of the network slice.
  • the access control policy parameter of the network slice is an access class priority of the network slice.
  • the access control policy parameter of the network slice is an access access policy parameter or a forbidden access policy parameter.
  • a communication device for performing the method of any of the first aspect or the first aspect of the first aspect.
  • the communication device may comprise means for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • a communication device for performing the method of any of the above-described second or second possible implementations.
  • the communication device may comprise means for performing the method of any of the possible implementations of the second aspect or the second aspect.
  • a communication device for performing the method of any of the above-described third or third aspect.
  • the communication device may comprise means for performing the method of any of the possible implementations of the third aspect or the third aspect.
  • a communication device comprising a memory for storing instructions, the processor for executing the instructions stored by the memory, and instructions stored in the memory Execution of the processor causes the processor to perform the method of the first aspect or any of the possible implementations of the first aspect.
  • a communication device comprising a memory for storing instructions, the processor for executing the instructions stored by the memory, and instructions stored in the memory Execution of the processor causes the processor to perform the method of any of the possible implementations of the second aspect or the second aspect.
  • a communication device comprising a memory for storing instructions, the processor for executing the instructions stored by the memory, and instructions stored in the memory Execution of the processor causes the processor to perform the method of any of the possible implementations of the third aspect or the third aspect.
  • a chip includes a processing module and a communication interface, the processing module is configured to control the communication interface to communicate with an external, and the processing module is further configured to implement the first aspect or the second aspect Or the method provided by the third aspect.
  • a computer readable storage medium having stored thereon a computer program that, when executed by a computer, causes the computer to implement the method of the first aspect or the second or third aspect.
  • a computer program product comprising instructions which, when executed by a computer, cause the computer to implement the method of the first aspect or the second aspect or the third aspect.
  • FIG. 1 is a schematic diagram of a system architecture applied in an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 3 is another schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 4 is another schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 5 is another schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 6 is another schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 7 is another schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 11 is another schematic block diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of another communication apparatus according to an embodiment of the present application.
  • FIG. 1 is a schematic diagram of a system architecture applied in an embodiment of the present application.
  • the system architecture includes a terminal device (the UE illustrated in FIG. 1), a Radio Access Network (RAN) device (the RAN illustrated in FIG. 1), and a Core Network (CN) device.
  • RAN Radio Access Network
  • CN Core Network
  • the terminal device may be a user equipment (UE), a handheld terminal, a notebook computer, a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant. (personal digital assistant, PDA) computer, tablet, wireless modem, handheld, laptop computer, cordless phone, or wireless local loop (wireless local loop, WLL)
  • UE user equipment
  • PDA personal digital assistant
  • WLL wireless local loop
  • MTC machine type communication
  • the terminal device such as the UE in FIG. 1 and the access network device (the RAN illustrated in FIG. 1) communicate with each other using some air interface technology.
  • the access network equipment is mainly responsible for radio resource management, quality of service (QoS) management, data compression, and encryption on the air interface side.
  • the access network device may include various forms of base stations, such as a macro base station, a micro base station (also referred to as a small station), a relay station, an access point, and the like.
  • base stations such as a macro base station, a micro base station (also referred to as a small station), a relay station, an access point, and the like.
  • the name of a device having a base station function may be different, for example, in a 5th generation (5th generation, 5G) system, called gNB; in an LTE system, it is called An evolved Node B (eNB or eNodeB); in a 3rd generation (3G) system, it is called a Node B or the like.
  • the core network device includes the following network function (NF).
  • NF network function
  • Access and mobility management function (AMF).
  • the AMF is primarily responsible for signaling processing functions such as access control, mobility management, attach and detach, and gateway selection.
  • the AMF provides a service for the session in the terminal device, the AMF provides the storage resource of the control plane for the session, and stores the session identifier, the SMF identifier associated with the session identifier, and the like.
  • Session Management Function SMF
  • the SMF is responsible for the following functions: user plane network element selection, user plane network element redirection, internet protocol (IP) address allocation, bearer establishment, modification and release, and quality of service (QoS) control.
  • IP internet protocol
  • QoS quality of service
  • PCF Policy control function
  • the PCF mainly supports providing a unified policy framework to control network behavior, providing policy rules to the control layer network functions, and being responsible for obtaining user subscription information related to policy decisions.
  • NWDAF Network Data Analytics Function
  • NWDAF mainly supports the collection and analysis of big data, and provides analysis results to other related network elements.
  • the system architecture also includes a User Plane Function (UPF).
  • the UPF is responsible for forwarding and receiving user data in the terminal device.
  • the UPF can receive user data from the data network (ie, the core network) and transmit the data to the terminal device through the access network device.
  • the UPF can also receive user data from the terminal device through the access network device, and forward the data to the data network.
  • the transmission resources and scheduling functions for the terminal devices in the UPF are controlled by the SMF management.
  • each network function in the above core network is communicatively connected to each other.
  • the AMF may also be in communication connection with a terminal device (UE) and an access network device (RAN), respectively; the SMF may also be in communication with the UPF.
  • UE terminal device
  • RAN access network device
  • FIG. 1 also shows other network functions in the core network, such as Network Slice Selection Function (NSSF), Network Exposure Function (NEF), and NF Repository Function (NRF). ), the same data management (UDM), application function (Application Function, AF) and Authentication Server Function (AUSF), also shows the data network (DN),
  • NSSF Network Slice Selection Function
  • NEF Network Exposure Function
  • NRF Network Exposure Function
  • NRF Network Exposure Function
  • NRF NF Repository Function
  • UDM data management
  • application function Application Function
  • AUSF Authentication Server Function
  • DN data network
  • FIG. 2 is a schematic flowchart of a communication method provided by an embodiment of the present application. The method includes the following process.
  • the core network device acquires a policy parameter of the network slice, where the policy parameter of the network slice includes at least one of the following parameters: an access control policy parameter, a scheduling control policy parameter, and a bandwidth control policy parameter.
  • the core network device obtains the policy parameters of the network slice, and may indicate that the core network device generates the policy parameter of the network slice, and may also indicate that the core network device obtains the network slice policy parameter by using other devices.
  • the core network device acquires a policy parameter of the network slice by using NWDAF.
  • the core network device subscribes to or requests to analyze the policy parameters of the network slice to the NWDAF, and the core network device determines the policy parameter of the network slice according to the analysis result of the NWDAF feedback.
  • the core network device acquires a policy parameter of the network slice according to a predefined algorithm.
  • the predefined algorithm determines the policy parameter of the network slice according to the type of the network slice, or determines the policy parameter of the network slice according to the SLA indicator requirement signed by the network slice, or, according to the management network element, the network parameter.
  • the slice parameters of the slice configuration are used to determine policy parameters that determine the network slice.
  • the policy parameters of the network slice include at least one of the following parameters: an access control policy parameter, a scheduling control policy parameter, and a bandwidth control policy parameter.
  • the access control policy parameter indicates a parameter used to control the terminal device accessing the network;
  • the scheduling control policy parameter indicates a parameter used to schedule resources for the terminal device accessing the network;
  • the bandwidth control policy parameter indicates that the parameter is used for accessing the network.
  • the parameter that the terminal device allocates bandwidth For example, the bandwidth control policy parameter indicates the maximum bandwidth allocated for the network slice, and the bandwidth allocated to the terminal device accessing the network slice is less than or equal to the maximum bandwidth allocated by the network slice.
  • the policy parameters of the network slice may be specifically the priority of the network slice.
  • the access control policy parameter of the network slice is the access class priority of the network slice
  • the scheduling control policy parameter of the network slice is the scheduling priority of the network slice.
  • the core network device sends a policy parameter of the network slice to the access network device corresponding to the network slice.
  • the access network device receives the policy parameters of the network slice from the core network device.
  • the core network device sends a notification message to the access network device, where the notification message carries the policy parameter of the network slice and the slice identifier of the network slice.
  • the access network device receives the notification message from the core network device, and the access network device obtains the slice identifier of the network slice and the policy parameter of the network slice by parsing the notification message.
  • the slice identifier of the network slice refers to information capable of uniquely identifying the network slice.
  • the access network device can identify the network slice according to the slice identifier.
  • the access network device determines a related strategy of the network slice according to the policy parameter of the network slice.
  • the access network device When the policy parameter of the network slice is an access control policy parameter, the access network device generates an access control parameter of the network slice according to the access control policy parameter of the network slice.
  • the access network device determines a policy for scheduling transmission resources for the terminal device accessing the network slice according to the scheduling control policy parameter of the network slice.
  • the access network device determines a policy for allocating network bandwidth for the terminal device accessing the network slice according to the bandwidth control policy parameter of the network slice.
  • the present embodiment is described by taking a network slice as an example, but the embodiment of the present application is not limited thereto.
  • the method can be processed by the method provided in this embodiment of the present application. .
  • the network slice by setting the policy parameters of the network slice and then processing the network slice according to the policy parameters of the network slice, the network slice can be differentiated, which is beneficial to improving the service quality of the network slice.
  • the core network device in this embodiment may be a certain network function (NF) in the core network.
  • the core network device is NWDA, PCF, NSSF or AMF in FIG.
  • the core network device may also be another network function other than the currently defined network function.
  • the network function is referred to as a slice control function (SCF).
  • the S202 specifically includes: sending, by the AMF, the policy parameter of the network slice to the access network device by using the AMF.
  • the access network device receives the policy parameters of the network slice from the core network device through the AMF.
  • the policy parameter of the network slice is an access control policy parameter, specifically, an access class priority.
  • the access network device determines an access control parameter of the network slice according to an access class priority of the network slice.
  • the access network device may send the access control parameter of the network slice to the terminal device by using a broadcast message, so that the terminal device performs network access.
  • the access control policy parameters include, but are not limited to, permission to access, prohibit access, prohibit access duration, probability of prohibiting access, and the like.
  • the length of the access prohibition indicates the length of time between the access failure and the next access.
  • the access class priority includes two levels, high and low, where high priority indicates that access is allowed, and low priority indicates that access is prohibited. Assuming that the access class priority of the network slice indicates that access is allowed, the access control parameter determined by the access network device also indicates that the terminal device can access the network. When the access class priority of the network slice indicates that access is prohibited, the access control parameter determined by the access network device also indicates that the terminal device prohibits access to the network.
  • the access class priority includes multiple levels, for example, including priority 1, priority 2, and priority 3.
  • the priority 1 indicates that access is allowed, and the waiting time after the access fails is T1; 2 indicates that access is allowed, and the waiting time after the access failure is T2, T2>T1; and priority 3 indicates that access is prohibited.
  • the priority order is: priority 1 > priority 2 > priority 3.
  • the access control parameter determined by the access network device also indicates that the terminal device accesses the access according to the policy. The internet.
  • the S201 specifically includes: the core network device divides all network slices in the system into at least two access categories, and sets an access class priority according to the at least two access categories; the core network device obtains The access class priority of the network slice, and the access class priority of the network slice is the access class priority corresponding to the access category to which the network slice belongs.
  • the policy parameter of the network slice is an access control parameter or an access control parameter.
  • the access class priority is set according to the access category, and the access control parameters are configured according to the access class priority.
  • the signaling overhead of sending access control parameters to the terminal device can be reduced.
  • the core network device may also set the access class priority in units of network slices. This embodiment of the present application does not limit this.
  • the access network device generates an access control parameter according to the access class priority of the network slice.
  • the priority of the category corresponds to the access control parameters.
  • the system message broadcasted by the access network device to the terminal device may include access control parameters of the network slice of the access class priority.
  • the terminal device needs to find the corresponding network slice from the system message according to the access category of the network slice. Enter control parameters. Therefore, in the case that the access class priority of the network slice is set according to the access category of the network slice, the terminal device needs to be notified of the access category of the network slice in advance, and the terminal device establishes a contract relationship with the network slice.
  • the terminal device is informed of the access category of the network slice by means of static configuration.
  • the user when a user establishes a contract relationship with a network slice, the user saves the access category of the network slice statically. For example, the user stores the access category of the network slice in a storage space within the SIM card or terminal device. The access category of the network slice is also saved in the user subscription database (for example, UDM) corresponding to the network side.
  • UDM user subscription database
  • the static configuration of the access category of the network slice is relatively simple and easy to deploy, and there is no need to modify the signaling of the current network.
  • the terminal device learns the access category of the network slice by dynamically configuring.
  • the core network device notifies the terminal device of the access category of the network slice by using the AMF, and the terminal device is a terminal device that establishes a contract relationship with the network slice.
  • the differentiated access control of the network slice can be implemented by setting the access class priority of the network slice and then configuring the access control policy of the network slice according to the access class priority of the network slice.
  • a higher access class priority can be set for the network slice, for example, allowing the network slice to access more users.
  • the access class priority of the network slice is reduced, for example, the number of users allowed to access the network slice is reduced, or access to the network slice is prohibited. This can guarantee the quality of service of the network slice.
  • the access class priority of the network slice is set, and then the access control policy of the network slice is configured according to the access class priority of the network slice, so that the number of users allowed to access the network slice can be controlled. To the extent that the quality of service for network slicing is guaranteed.
  • the policy parameter of the network slice is a scheduling control policy parameter.
  • the core network device determines a scheduling control policy parameter of the network slice according to the SLA indicator of the network slice or the type of the network slice.
  • the scheduling control policy parameter is a scheduling priority.
  • the higher scheduling priority preferentially performs resource scheduling with respect to the lower scheduling priority.
  • a higher scheduling priority can be set for the network.
  • the scheduling priority indicates that the transmission resource is scheduled to be accessed by the user in the network slice, thereby improving the SLA indicator of the network slice.
  • S202 specifically includes: the core network device sends a scheduling control policy parameter of the network slice to the access network device by using a user plane or a control.
  • the access network device receives the scheduling control policy parameter of the network slice from the core network device by using a user plane or a control plane.
  • the service quality of the network slice can be guaranteed to a certain extent.
  • the policy parameter of the network slice is a bandwidth control policy parameter.
  • the core network device determines a bandwidth control policy parameter of the network slice based on a maximum bandwidth of the network slice. For example, the maximum bandwidth of the network slice will be used as the bandwidth control policy parameter for the network slice.
  • the access network device allocates bandwidth to the terminal device that accesses the network slice, and is less than or equal to the maximum bandwidth.
  • S202 specifically includes: the core network device sends a bandwidth control policy parameter of the network slice to the access network device by using a user plane or a control.
  • the bandwidth control policy parameter of the network slice indicates the size of the bandwidth.
  • the bandwidth of the network slice can be flexibly configured, and the service quality of the network slice can be guaranteed to a certain extent.
  • the core network device notifies the access network device of the policy parameter of the network slice when determining the policy parameter of the network slice for the first time.
  • the core network device notifies the access network device of the updated policy parameter of the network slice when changing (or adjusting) the policy parameter of the network slice.
  • the core network device when the access class priority of the network slice is degraded, the core network device notifies the access network device of the access class priority after the network slice is reduced. For another example, when the access class priority of the network slice is upgraded, the core network device notifies the access network device of the access class priority after the network slice is upgraded.
  • the embodiment of the present application When determining the priority of the network slice or changing the policy parameters of the network slice for the first time, the embodiment of the present application notifies the access network device, so that the access network device configures according to the policy parameters of the network slice to ensure the service of the network slice. quality.
  • the solution provided by the embodiment of the present application can be applied to the scenario of the access control.
  • the differentiated access of the network slice can be implemented by using the solution of the present application.
  • the solution provided by the embodiment of the present application can also be applied to a scenario in which the terminal device accesses the network and performs resource scheduling control.
  • the solution of the present application can implement differentiated scheduling of the network slice, and can also implement differentiated bandwidth configuration. .
  • the access control policy parameter is used as the access class priority as an example
  • the scheduling control policy parameter is used as the scheduling priority as an example.
  • the process of the terminal device accessing the network is substantially as follows: the terminal device acquires an access control parameter from the access network device (RAN); and then accesses the network according to the access control parameter.
  • the access network device RAN
  • the access control parameters include, but are not limited to, an access prohibition check indication, a Boolean type parameter may be set to allow access or no access, or an access barring coefficient (BarringFactor) indicating a probability of access barring, And access prohibition time (BarringTime), indicating the average prohibition time, and so on.
  • an access prohibition check indication e.g., a Boolean type parameter may be set to allow access or no access
  • an access barring coefficient e.g., a probability of access barring
  • BarringTime access prohibition time
  • the method provided by the embodiment of the present application includes the following steps:
  • the core network device determines the access category of the network slice.
  • the core network device obtains an access category of the network slice by using a predefined algorithm.
  • the predefined algorithm determines the access category according to the type of the network slice, and is signed according to the SLA indicator signed by the network slice, or sets the access category according to the slice parameter configured by the management network element.
  • the core network device obtains an access category of the network slice according to the analysis of the big data algorithm module.
  • the core network device subscribes to or requests to analyze the access category of the network slice to the NWDAF, and the core network device determines the access category of the network slice according to the analysis result of the NWDAF feedback.
  • the core network device determines the access class priority of the network slice according to the access category of the network slice.
  • the core network device determines the access class priority of the network slice by using a predefined algorithm.
  • the predefined algorithm determines the access class priority of the network slice according to at least one of the following factors: the type of the network slice, the SLA indicator required by the network slice, and the slice parameter configured by the management network element for the network slice. .
  • the core network device obtains an access class priority of the network slice according to the analysis of the big data algorithm module.
  • the core network device subscribes to or requests to analyze the access class priority of the network slice to the NWDAF, and the core network device determines the access class priority of the network slice according to the analysis result of the NWDAF feedback.
  • the access class priorities of network slices of different access categories are not identical. For example, different access categories correspond to different access class priorities. As another example, two or more access categories correspond to the same priority.
  • a user accessing a network slice with a lower priority class is prohibited from accessing the network slice, and a user accessing a network slice with a higher priority class allows access to the network slice.
  • a user of a network slice with a higher priority of the access category preferentially accesses the network slice with respect to a user of the network slice with a higher priority of the access category.
  • the core network device notifies the access network device of the access class priority of the network slice.
  • the access network device generates an access control parameter of the network slice according to the access class priority of the network slice.
  • the access network device broadcasts the access control parameters of the network slice to the terminal device, so that the terminal device performs the process of accessing the network according to the access control parameter.
  • the access category of the network slice needs to be configured in advance to the terminal device that has established a contract relationship with the network slice.
  • the access category of the network slice is statically configured to the terminal device.
  • the user when a user establishes a contract relationship with a network slice, the user saves the access category of the network slice statically. For example, the user stores the access category of the network slice in a storage space within the SIM card or terminal device. The access category of the network slice is also saved in the user subscription database (for example, UDM) corresponding to the network side.
  • UDM user subscription database
  • the static configuration of the access category of the network slice is relatively simple and easy to deploy, and there is no need to modify the signaling of the current network.
  • the access category of the network slice is dynamically configured on the terminal device.
  • FIG. 3 is a schematic diagram of dynamically configuring an access type of a network slice to a terminal device.
  • the core network device is referred to as an SCF
  • the access network device is referred to as a RAN
  • the terminal device is referred to as a UE.
  • the method includes the following process.
  • the SCF determines an access category of the network slice.
  • the SCF obtains an access category of the network slice through a predefined algorithm.
  • the predefined algorithm determines the access category according to the type of the network slice, and is signed according to the SLA indicator signed by the network slice, or sets the access category according to the slice parameter configured by the management network element.
  • the SCF obtains an access category of the network slice according to the analysis of the big data algorithm module.
  • the SCF subscribes to or requests to analyze the access category of the network slice to the NWDAF, and the SCF determines the access category of the network slice according to the analysis result of the NWDAF feedback.
  • the NWDAF may directly feed back the access category of the specified slice, or feed back an indication that the specified slice needs to increase or decrease the access priority.
  • the SCF sends the access category of the network slice to the UE by using the AMF.
  • the AMF obtains an access category of the network slice from the SCF, and then the AMF sends the access category of the network slice to the UE that establishes a subscription relationship with the network slice.
  • the AMF subscribes to the SCF for a slice access category configuration. If the access type of a network slice changes, the SCF notifies AMF of the new access category for the network slice.
  • the AMF may send the access category of the network slice acquired from the SCF to the UE in multiple manners.
  • the AMF notifies the access category of the UE network slice through the UE's configuration update (UE configuration update) procedure.
  • UE configuration update UE configuration update
  • the AMF sends an access category of the network slice to the UE during the next registration or registration update process of the UE.
  • the registration response message carries the access category of the network slice.
  • the AMF sends the access category of the network slice to the UE that has established a subscription relationship with the network slice. It should also be understood that while the access category of the network slice is being sent to the UE, the identity of the network slice, ie the information used in the system to uniquely identify the network slice, is also sent.
  • the first implementation described above is applicable to a scenario where the SCF is a newly defined network function, or the SCF is an NSSF, an NWDA, or a scenario.
  • the AMF does not actively obtain an access category of the network slice from the SCF, and the AMF is to reply the registration response to the UE when the UE performs registration or registration update.
  • (registration accept) message first accessing the SCF, in the process of accessing the SCF, acquiring an access category corresponding to the network slice allowed to be accessed by the UE, and then the AMF sends a registration accept message to the UE, the registration response
  • the accept message carries the access category of the network slice obtained from the SCF.
  • the second implementation is applicable to a scenario where the SCF is a PCF. Because in the process of registration or registration update of the UE, the AMF originally needs to request the registration policy from the PCF through the Npcf_AMPolicyControl get. In the second implementation manner, the access category of the network slice is carried in the PCF. Reply to AMF's registration strategy.
  • FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application applied to an access control scenario.
  • the core network device is referred to as an SCF
  • the access network device is referred to as a RAN
  • the terminal device is referred to as a UE.
  • the method includes the following process.
  • the SCF determines an access category (AC) priority of the network slice.
  • AC access category
  • the SCF determines the access category of the network slice. Specifically, the access category of the network slice is determined according to the method described above in connection with FIG. 3, and details are not described herein again.
  • the SCF obtains the access class level of the network slice according to the access category of the network slice.
  • the SCF may obtain an access class priority of the network slice by using a predefined algorithm.
  • the predefined algorithm refers to determining the access class priority of the network slice according to at least one of the following factors: the type of the network slice, the SLA indicator required by the network slice, and the slice parameter configured by the management network element for the network slice. .
  • the SCF may obtain an access class priority of the network slice according to the analysis of the big data algorithm module.
  • the SCF subscribes to or requests to analyze the access class priority of the network slice from the NWDAF, and the SCF determines the access class priority of the network slice according to the analysis result provided by the NWDAF.
  • the SCF network may determine the access class priority of the network slice according to the real-time status of a network slice.
  • the SCF lowers the access class priority corresponding to the network slice, thereby reducing the growth rate of the number of users accessing the network slice.
  • the SCF may temporarily increase the priority of the access class corresponding to the network slice in the geographic area.
  • the access class priority of the network slice includes two priorities: a high priority and a low priority, wherein the high priority indicates that access is allowed, and the low priority indicates that access is prohibited.
  • the access class priority of the network slice includes N priorities, and the priority order is priority 1>priority 2>...>priority N-1>priority N, N is a positive integer.
  • a user of a network slice with an access class priority of priority 1 is more likely to access the network than a user of a network slice whose priority class priority is priority 2. For example, a smaller access barring factor and a shorter access barring time.
  • the SCF sends an access class priority of the network slice to the AMF.
  • the SCF sends a configuration message to the AMF, where the configuration message is used to indicate the access class priority of the network slice determined in S401, and the configuration message includes the slice identifier of the network slice and the access class priority of the network slice.
  • the slice identifier of the network slice is S-NSSAI or NSI.
  • the configuration message may further include an access category configuration related information of the network slice, such as an access category priority, an access category ID, a slice identifier corresponding to the access category, a corresponding access request type, or Corresponding to a combination of one or several of the above parameters such as DN name, QoS, App ID, and so on.
  • an access category configuration related information of the network slice such as an access category priority, an access category ID, a slice identifier corresponding to the access category, a corresponding access request type, or Corresponding to a combination of one or several of the above parameters such as DN name, QoS, App ID, and so on.
  • the configuration message may further include a Tracking Area List (TA list) corresponding to the network slice, and a Public Land Mobile Network (PLMN) ID corresponding to the network slice.
  • TA list Tracking Area List
  • PLMN Public Land Mobile Network
  • the SCF if the access class priority of a network slice X is changed, the SCF sends a configuration message to the AMF, where the configuration message indicates an access class priority after the update of the network slice X, the configuration The message carries the slice ID of the network slice X and the access class priority of the network slice X.
  • the slice identifier of the network slice X is S-NSSAI or NSI.
  • the configuration message may further include access category configuration related information of the network slice X.
  • the configuration message may further include a TA list corresponding to the network slice X, and a PLMN ID corresponding to the network slice X.
  • the AMF may subscribe to a network slice access category priority event with the SCF.
  • the SCF will notify the AMF of the access class priority of the network slice in real time. For example, after determining the access class priority of a network slice for the first time, or after the access class priority of a network slice is changed, the SCF sends the latest access class priority of the network slice to the AMF.
  • the AMF sends an access class priority of the network slice to the access network device (RAN).
  • RAN access network device
  • the AMF sends an access class priority of the network slice to the RAN by using an AMF configuration update message, where the AMF configuration update message carries the slice identifier of the network slice and the access class priority of the network slice.
  • the AMF configuration update message may further include the access type configuration related information, and may further include a TA list and a PLMN ID corresponding to the network slice.
  • the AMF network selects the RAN that has established the NG interface according to the slice identifier of the network slice, and then sends the AMF configuration update message to the RAN.
  • the NG interface is an interface for communication between the access network device (RAN) and the AMF.
  • the AMF when the AMF wants to send the access class priority of the network slice to the RAN, the RAN has not established an NG interface, that is, the AMF cannot communicate with the RAN at this time, in this case,
  • the AMF sends the access class priority of the network slice to the RAN in the process of establishing the NG interface with the RAN.
  • the AMF after receiving the NG setup request message sent by the RAN, the AMF sends an NG setup response to the RAN. (NG setup response) message, the NG establishment response message carries the access class priority of the network slice.
  • the RAN can obtain the access class priority of the network slice by parsing the NG setup response message.
  • the RAN sets an access control parameter of the network slice according to an access class priority of the network slice.
  • the RAN configures access control parameters for the network slice based on the access category of the network slice.
  • the terminal device selects a network slice to be accessed, determines an access control parameter of the network slice according to the access category of the network slice, and then accesses the network slice according to the access control parameter.
  • the RAN broadcasts the access control parameters by means of system information. Accordingly, the terminal device (UE) receives the broadcast message transmitted by the RAN.
  • the access control parameter corresponding to the access category is searched from the received access control parameter according to the access category of the network slice in which the subscription relationship has been established, and then, according to the access control parameter, Decide whether to access the network slice and how to access it.
  • the process of accessing the network slice by the UE according to the access control parameter is a prior art, and is not described herein again.
  • the AMF may further reconfigure an access policy of the UE, such as a Network Slice Selection Policy (NSSP), according to an indication of the SCF, indicating that when the UE finds that the network slice that needs to be accessed is forbidden to access,
  • NSP Network Slice Selection Policy
  • another network slice can be selected, such as a default network slice, to prevent the UE from being in a state incapable of serving.
  • the traditional mobile network accesses the access control parameter (access barring config) through the air interface, and the terminal device receives the access control parameter according to the configuration of the access control parameter.
  • the network side can allow or deny user access by configuring access control parameters to avoid network congestion.
  • the solution provided by the present application can also implement the differentiation processing of the network slice. Assuming that the load of the network slice X1 is large and the load of the network slice X2 is small, the access class priority of the network slice X1 is set to a low priority, and the access class priority of the network slice X2 is set to a high priority. Therefore, in the process of the terminal accessing the network, the number of users accessing the network slice X1 is less, and the number of users accessing the network slice X2 is more, which can effectively improve the service quality of the network slice.
  • the network side can dynamically adjust the priority corresponding to the access category of the network slice, that is, the access class priority of the network slice, and differentiate the number of different network slice access terminal devices.
  • the present embodiment controls the number of users that can be accessed by different network slices by performing differentiated access control on different network slices, thereby improving the service quality of the network slice to a certain extent.
  • the specific implementation of the communication method provided by the embodiment of the present application is applied to the scenario of the access control.
  • the specific implementation of the communication method provided by the embodiment of the present application in the scenario of the scheduling control is described below.
  • the scenario of the scheduling control refers to that the terminal device schedules the uplink and downlink resource scenarios for the terminal device after the terminal device accesses the network.
  • the scheduling control of different network slices is performed to affect the resource scheduling of different network slices to the UE currently in the connected state.
  • the core network device determines the scheduling priority of the network slice, and then notifies the access network device of the scheduling priority of the network slice by means of the user plane or the control plane.
  • FIG. 5 is a schematic diagram of a method for performing differentiated scheduling control on a network slice according to an embodiment of the present disclosure.
  • the core network device is referred to as an SCF
  • the access network device is referred to as a RAN
  • the terminal device is referred to as a UE.
  • the core network device notifies the access network device of the scheduling priority of the network slice in a user plane manner.
  • the method includes the following process.
  • the SCF determines a scheduling priority of the network slice.
  • the SCF obtains a scheduling priority between the plurality of network slices by a predefined algorithm.
  • the SCF obtains a scheduling priority between the plurality of network slices according to the analysis of the big data algorithm module.
  • the SCF subscribes to or requests to analyze the scheduling priority of the network slice to the NWDAF, and the SCF determines the scheduling priority of the network slice according to the analysis result of the NWDAF feedback.
  • the scheduling priority of the network slice should be increased, so that users accessing the network slice can more easily obtain scheduling resources, thereby improving the The SLA of the network slice. vice versa.
  • the SCF sends a scheduling priority of the network slice to the SMF.
  • the SCF can notify the SMF of the scheduling priority of the network slice in the following two ways.
  • the first way the SCF notifies the scheduling priority of the SMF network slice through the PCF.
  • the PCF subscribes to the notification message of the scheduling change of the network slice on the SCF through the slice priority subscribe interface of the SCF, and the slice identifier of the network slice can be provided in the subscription interface.
  • the subscription interface may further include a TA list and a PLMN ID corresponding to the network slice.
  • the SCF when the scheduling priority of the network slice subscribed by the PCF needs to be adjusted, the SCF sends a notification message to the PCF, where the notification message carries the scheduling priority of the adjusted network slice and the identifier of the network slice.
  • the notification message may further carry a TA list corresponding to the network slice.
  • the PCF After receiving the notification message sent by the SCF, the PCF sends the notification message to the SMF through the Npcf_SMPolicyControl interface. For example, the notification message notifies the SMF to adjust the priority of the session corresponding to one or more UEs under the specified TA to adjust the corresponding QoS parameters.
  • the Tracking Area is a newly established concept for the location management of the UE by the LTE system.
  • the core network can know the tracking area where the UE is located, and when the UE in the idle state needs to be paged, it must page in all cells of the tracking area registered by the UE.
  • the TA is a cell-level configuration. Multiple cells can be configured with the same TA, and one cell can belong to only one TA.
  • the second way the SCF directly notifies the scheduling priority of the SMF network slice.
  • the SMF subscribes to the notification message of the network slice's scheduling priority change on the SCF through the SCF's slice priority subscribe interface, and the network interface identifier (slice ID) can be provided in the subscription interface.
  • the subscription interface may further include a TA list and a PLMN ID corresponding to the network slice.
  • the SCF when the scheduling priority of the network slice subscribed by the SMF needs to be adjusted, the SCF sends a notification message to the SMF, where the notification message carries the scheduling priority of the adjusted network slice and the identifier of the network slice.
  • the notification message may further carry a TA list corresponding to the network slice.
  • the scheduling priority of the network slice is sent to the SMF.
  • the SMF sends an N4 session modification message to the UPF, where the N4 session modification message carries the scheduling priority of the network slice.
  • the SMF is to obtain the scheduling priority notification message of the network slice from the SCF
  • the specified session of the specified UE in the specified TA needs to be selected, and the corresponding UPF is notified by the N4 session modification message, and the corresponding The priority of the session, for example, to notify new QoS parameters, or to notify the UPF to increase QoS.
  • the SMF is managed according to the user's session granularity.
  • the N4 session notification message carries the QoS parameter, and the QoS parameter is determined according to the scheduling priority of the network slice. A slice with a higher priority uses a higher priority QoS parameter.
  • the SMF is a notification message that acquires the scheduling priority of the network slice from the PCF, similar to the PCF triggering PDU session motification in the prior art, according to the indication thereof, the scheduling priority of the network slice is notified to the UPF through the N4 session modification.
  • the UPF sends a message to the RAN, where the message carries a scheduling priority of the network slice.
  • the UPF adjusts the scheduling priority of the corresponding session of the UE according to the N4 session modification message of the SMF.
  • the downlink data may be notified to the RAN by a 5QI indication carrying a high priority QoS in the packet header.
  • the uplink 5QI change can be indicated by the downlink 5QI change according to the reflective QoS mechanism.
  • S504 The RAN performs corresponding scheduling on the air interface according to the scheduling priority of the obtained network slice.
  • the RAN can obtain corresponding QoS parameters according to the 5QI indication in the data packet header, and perform corresponding scheduling on the air interface according to the corresponding QoS parameters.
  • FIG. 6 is another schematic diagram of a method for performing differentiated scheduling control on a network slice according to an embodiment of the present disclosure.
  • the core network device is referred to as an SCF
  • the access network device is referred to as a RAN
  • the terminal device is referred to as a UE.
  • the core network device notifies the access network device of the scheduling priority of the network slice by means of the control plane.
  • the method includes the following process.
  • the SCF determines a scheduling priority of the network slice.
  • S601 is the same as S501, and the description in the component S501 is specifically described, and details are not described herein again.
  • the SCF notifies the AMF of the scheduling priority of the network slice.
  • the SCF can notify the AMF of the scheduling priority of the network slice in the following two ways.
  • the first way the SCF notifies the AMF of the scheduling priority of the network slice through the PCF.
  • the PCF can subscribe to the notification message of the slice priority change on the SCF through the slice priority subscribe interface of the SCF, and the slice ID can be provided in the subscription interface, and optionally the corresponding TA list and the corresponding PLMN ID.
  • the SCF sends a notification message to the PCF, where the notification message carries the identifier of the network slice and the scheduling priority of the network slice.
  • the notification message further includes a TA list corresponding to the network slice.
  • the PCF sends a notification message to the AMF through the Npcf_AMpolicy_control interface, where the notification message carries the scheduling priority of the network slice.
  • the notification message may further carry a TA list corresponding to the network slice.
  • the second way the SCF directly informs the AMF of the scheduling priority of the network slice.
  • AMF subscribes to the Nscf_AMpolicy_control notification on the SCF.
  • the SCF sends a notification message to the PCF, where the notification message carries the identifier of the network slice and the scheduling priority of the network slice.
  • the notification message further includes a TA list corresponding to the network slice.
  • the SCF after the SCF first determines the scheduling priority of the network slice or adjusts the scheduling priority of the network slice, the SCF sends a scheduling priority for indicating the network slice to the PCF or the AMF.
  • the AMF sends a scheduling priority message to the RAN network element.
  • the AMF After receiving the notification message of the scheduling priority of the network slice, the AMF sends an AMF configuration update message (AMF configuration update) message to the NG interface between the RAN and the RAN, where the AMF configuration update message carries the scheduling priority of the network slice.
  • AMF configuration update AMF configuration update
  • the slice ID received by the AMF is NSI, it needs to be converted into the S-NSSAI corresponding to the slice. It should be understood that the Slice ID has different identification modes in different places, and can be represented by NSI or S-NSSAI in the CN, and S-NSSAI between CN and RAN.
  • the RAN performs resource scheduling according to the AMF configuration update message received from the AMF.
  • the RAN obtains the scheduling priority of the network slice by parsing the AMF configuration update message, and then the RAN determines the resource scheduling policy according to the scheduling priority of the network slice and the session QoS parameter of the UE.
  • the UE that schedules the network slice with the higher priority is preferentially scheduled.
  • the scheduling priority of the network slice is set, and the user of the network slice with the higher scheduling priority is preferentially allocated the scheduling resource.
  • the differentiation process between the network slices can be performed on the UE that has accessed the network.
  • the CN can manage the SLAs of different slices differently by controlling the RAN's resource allocation to different slices.
  • the CN does not directly manage the wireless spectrum allocation of the RAN, so indirect resource control can be performed by controlling the slice level bandwidth/rate limit.
  • FIG. 7 is another schematic diagram of a method for performing differentiated scheduling control on a network slice according to an embodiment of the present application. The method includes the following process.
  • the SCF determines a bandwidth control policy parameter of the network slice.
  • the SCF determines a bandwidth control policy parameter of the network slice by using a predefined algorithm.
  • the SCF obtains a bandwidth control policy parameter according to the analysis of the big data algorithm module.
  • the SCF subscribes to or requests to analyze the bandwidth control policy parameters of the network slice from the NWDAF, and the SCF determines the bandwidth control policy parameters of the network slice according to the analysis result of the NWDAF feedback.
  • the bandwidth control policy parameter may be determined according to the following rules: when the SLA of the network slice X is low, the network bandwidth of the network slice X may be increased, or the network bandwidth of other network slices may be limited. Such a bandwidth control policy parameter can ensure that the network slice X can obtain network resources to improve the SLA of the network slice X.
  • the SCF or NWDAF may determine the bandwidth control policy parameters of the network slice through the bandwidth statistics report of the UPF or the network slice.
  • the SCF sends a notification message to the AMF, where the notification message carries a bandwidth control policy parameter of the network slice.
  • the SCF may send the notification message to the AMF in the following two manners.
  • the first way the SCF sends the notification message to the AMF through the PCF.
  • the SCF sends the notification message to the PCF, and the PCF sends the notification message to the AMF.
  • the second way the SCF sends the notification message directly to the AMF.
  • the SCF needs to select the corresponding AMF, and is notified by the slice BW change interface of the AMF, and the corresponding slice ID is specified, and optionally, the corresponding TA list and the corresponding PLMN ID may be included.
  • the SCF after the SCF first determines the bandwidth control policy parameter of the network slice, or adjusts the bandwidth control policy parameter of the network slice, the SCF sends a bandwidth control policy parameter for indicating the network slice to the PCF or the AMF. Notification message.
  • the AMF sends a bandwidth control policy parameter of the network slice to the RAN.
  • the AMF may further include a corresponding TA list according to the slice ID carried in the information, determine the corresponding RAN, and then send the bandwidth control policy parameter of the network slice to the RAN.
  • the bandwidth control policy parameter of the network slice is sent to the RAN through an AMF configuration update message.
  • the bandwidth control policy parameter of the network slice is sent to the RAN by using an over load message.
  • the AMF configuration update message or the over load message may carry the total bandwidth available for the slice ID (here, S-NSSAI), or may be a relative value, such as the bandwidth of the slice can be the percentage of the current bandwidth (120%). Is to increase bandwidth usage, 80% is to reduce bandwidth usage)
  • the RAN allocates bandwidth to the terminal device accessing the network slice according to the bandwidth control policy parameter of the received network slice.
  • the RAN allocates bandwidth for the terminal device accessing the network slice, it ensures that the sum of the bandwidth allocated to all the terminal devices under the network slice does not exceed the total bandwidth of the network segment.
  • the total bandwidth can also be a relative ratio between slices, as expressed as the percentage of bandwidth across the base station.
  • the network slice differentiation process can be implemented, which is beneficial to improving the service quality of the network slice.
  • FIG. 8 is a schematic block diagram of a communication device 800 according to an embodiment of the present application.
  • the communication device 800 includes the following units.
  • the processing unit 810 is configured to obtain a policy parameter of the network slice, where the policy parameter of the network slice includes at least one of the following parameters: an access control policy parameter, a scheduling control policy parameter, and a bandwidth control policy parameter;
  • the sending unit 820 is configured to send the policy parameter of the network slice to the access network device corresponding to the network slice, so that the access network device determines the related policy of the network slice according to the policy parameter of the network slice.
  • the processing unit 810 is configured to divide all network slices in the system into at least two access categories, and set an access class priority according to the at least two access categories;
  • the policy parameter of the network slice, the policy parameter of the network slice is the access class priority corresponding to the access category to which the network slice belongs.
  • the sending unit 820 is further configured to notify the terminal device of an access category of the network slice, where the terminal device is a terminal device that establishes a contract relationship with the network slice.
  • the policy parameter of the network slice is an access control parameter or an access control parameter.
  • the sending unit 820 is configured to send, by using the access and mobility management function AMF, the policy parameter of the network slice to the access network device.
  • the sending unit 820 is configured to notify the access network device of the policy parameter after the network slice change when the policy parameter of the network slice is changed.
  • the processing unit 810 is configured to obtain, by using a network data analysis function NWDAF, a policy parameter of the network slice.
  • NWDAF network data analysis function
  • the sending unit 820 is configured to send a notification message to the access network device, where the notification message carries a policy parameter of the network slice and a slice identifier of the network slice.
  • the communication device 800 further includes a receiving unit 830, for example for receiving an analysis result from the NWDAF.
  • the communication device 800 provided in accordance with an embodiment of the present application may correspond to the core network device in the above method embodiment, and the above and other operations and/or functions of the respective units in the communication device 800 are respectively implemented in order to implement FIG. 2 to FIG. The corresponding processes of each method in 7 are not repeated here for brevity.
  • FIG. 9 is a schematic block diagram of another communication device 900 according to an embodiment of the present application.
  • the communication device 900 includes a processor 910, a memory 920 for storing instructions, a processor 910 for reading instructions stored in the memory 920, and an execution of instructions stored in the memory 920 for the processor 910.
  • the actions performed by the processing unit 810 in the above embodiments are performed such that the transceiver 930 is configured to perform the actions performed by the transmitting unit 820 in the above embodiments.
  • FIG. 10 is a schematic block diagram of another communication device 1000 according to an embodiment of the present application.
  • the communication device 1000 includes the following units.
  • the receiving unit 1010 is configured to receive a policy parameter of the network slice from the core network device, where the policy parameter of the network slice includes at least one of the following parameters: an access control policy parameter, a scheduling control policy parameter, and a bandwidth control policy parameter;
  • the processing unit 1020 is configured to determine a related policy of the network slice according to the policy parameter of the network slice.
  • the policy parameter of the network slice is an access control policy parameter
  • the processing unit 1020 is configured to determine an access control parameter of the network slice according to an access control policy parameter of the network slice.
  • the policy parameter of the network slice is an access control parameter or an access control parameter.
  • the processing unit 1020 is configured to generate an access control parameter of the network slice according to an access control policy parameter of the network slice.
  • the method further includes: a sending unit 1030, configured to send a broadcast message to the terminal device, where the broadcast message carries an access control parameter of the network slice, and the terminal device establishes a contract relationship with the network slice.
  • a sending unit 1030 configured to send a broadcast message to the terminal device, where the broadcast message carries an access control parameter of the network slice, and the terminal device establishes a contract relationship with the network slice.
  • the policy parameter of the network slice is a scheduling control policy parameter
  • the processing unit 1020 is configured to determine, according to the scheduling control policy parameter of the network slice, scheduling resources for the terminal device accessing the network slice.
  • the policy parameter and the bandwidth control policy parameter of the network slice are configured to determine, according to the bandwidth control policy parameter of the network slice, allocate bandwidth to the terminal device accessing the network slice. Strategy.
  • the receiving unit 1010 is configured to receive, by the access and mobility management function AMF, the policy parameters of the network slice from the core network device.
  • the receiving unit 1010 is configured to receive, after the policy parameter of the network slice changes, the policy parameter after the network slice change is received from the core network device.
  • the receiving unit 1010 is configured to receive, by the core network device, a notification message, where the notification message carries a policy parameter of the network slice and a slice identifier of the network slice.
  • the communication device 1000 provided according to the embodiment of the present application may correspond to the access network device in the foregoing method embodiment, and the foregoing and other operations and/or functions of the respective units in the communication device 1000 are respectively implemented in order to implement FIG. 2 to The corresponding processes of the respective methods in FIG. 7 are not described herein again for the sake of brevity.
  • FIG. 11 is a schematic block diagram of another communication device 1100 according to an embodiment of the present application.
  • the communication device 1100 includes a processor 1110, a memory 1120 for storing instructions, a processor 1110 for reading instructions stored in the memory 1120, and an execution of instructions stored in the memory 1120 for use by the processor 1110.
  • the actions performed by the processing unit 1020 in the above embodiments are performed such that the transceiver 1130 is configured to perform the actions performed by the receiving unit 1010 and the transmitting unit 1030 in the above embodiments.
  • the embodiment of the present application further provides a communication device 1200, which may be a terminal device or a chip.
  • the communication device 1200 can be configured to perform the actions performed by the terminal device in the above method embodiments.
  • FIG. 12 shows a schematic structural diagram of a simplified terminal device.
  • the terminal device uses a mobile phone as an example.
  • the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input/output device.
  • the processor is mainly used for processing communication protocols and communication data, and controlling terminal devices, executing software programs, processing data of software programs, and the like.
  • Memory is primarily used to store software programs and data.
  • the RF circuit is mainly used for the conversion of the baseband signal and the RF signal and the processing of the RF signal.
  • the antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When the data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • the memory may also be referred to as a storage medium or a storage device or the like.
  • the memory may be independent of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit having the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor having the processing function is regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 1201 and a processing unit 1202.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the transceiver unit 1201 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 1201 is regarded as a sending unit, that is, the transceiver unit 1201 includes a receiving unit and a sending unit.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit or the like.
  • the transmitting unit may also be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like.
  • the transceiver unit 1201 is configured to perform the receiving operation on the terminal device side in step 302 in FIG. 3, and/or the transceiver unit 1201 is further configured to perform other receiving and receiving on the terminal device side in the embodiment of the present application. step.
  • the transceiver unit 1201 is configured to perform the receiving operation on the terminal device side in S404 in FIG. 4, and/or the transceiver unit 1202 is further configured to perform other receiving and receiving on the terminal device side in the embodiment of the present application. step.
  • the chip When the communication device 1200 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit and a communication interface;
  • the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.
  • the embodiment of the present application further provides a computer readable storage medium, where a computer program is stored thereon, and when the computer program is executed by a computer, the computer is implemented to implement a method on a core network device side in the foregoing method embodiment, or an access network. Method on the device side, or method on the device side.
  • the embodiment of the present application further provides a computer program product including instructions, which when executed by a computer, causes the computer to implement the method on the core network device side in the foregoing method embodiment, or the method on the access network device side, or the terminal Device side method.
  • processors mentioned in the embodiment of the present invention may be a central processing unit (CPU), and may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits ( Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory referred to in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM). SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (DR RAM).
  • processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) is integrated in the processor.
  • memories described herein are intended to comprise, without being limited to, these and any other suitable types of memory.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请提供一种通信方法与装置，该方法包括：核心网设备获取网络切片的策略参数，该网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；该核心网设备向该网络切片对应的接入网设备发送该网络切片的策略参数，以便该接入网设备按照该网络切片的策略参数确定该网络切片的相关策略。本申请通过设置网络切片的策略参数，并根据网络切片的策略参数确定网络切片的相关策略，可以在一定程度上保障网络切片的服务质量。

Description

通信方法与装置
本申请要求于2018年4月13日提交中国国家知识产权局、申请号为201810333894.4、发明名称为“通信方法与装置”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
本申请涉及通信领域，并具体地，涉及一种通信方法与装置。
背景技术
随着多种多样的通信业务的不断涌现，不同的通信业务对网络性能的需求存在显著的区别，第五代移动通信系统(the fifth generation，5G)引入了网络切片(network slice，NS)的概念，以应对不同通信业务对网络性能的需求的差异。
网络切片是指支持特定通信业务需求的逻辑网络功能实体的集合，主要借助于软件定义网络(software defined network，SDN)技术与网络功能虚拟化(network function virtualization，NFV)技术，实现通信业务可定制化的服务。一个网络切片满足某一类或一个用例的连接通信服务需求，整个网络系统由满足不同连接能力的大量网络切片组成。
网络切片是端对端的，包括无线接入网、传输网以及核心网等。无线接入网、传输网以及核心网均进行切片化处理，因此多个部分的网络切片连接到一起成为一个能为用户提供一项完整服务的整体的网络切片。不同部分的网络切片之间是逻辑隔离的，基础设施网络资源是共享的。当运营商的商业模式从向单个用户销售连接转向垂直行业销售网络切片后，原来的按用户的QoS保障需要转换为按服务等级协议(Service-Level Agreement，SLA)要求进行切片级的保障，例如，如何保障网络切片的服务质量，如何保障网络切片满足客户的需求，如何保障合理配置网络切片之间的网络资源等。
目前，尚没有针对网络切片的保障方案。
发明内容
本申请提供一种通信方法与装置，通过对网络切片设置优先级，可以在一定程度上保障网络切片的服务质量。
第一方面，提供了一种通信方法，该方法包括：核心网设备获取网络切片的策略参数，该网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；该核心网设备向该网络切片对应的接入网设备发送该网络切片的策略参数，以便该接入网设备按照该网络切片的策略参数确定该网络切片的相关策略。
可选地，该核心网设备通过NWDAF获取该网络切片的策略参数。
可选地，该核心网设备根据预定义算法获取该网络切片的策略参数。
具体地，该核心网设备向该接入网设备发送通知消息，该通知消息中携带该网络切片的策略参数以及该网络切片的切片标识。相应地，该接入网设备从该核心网设备接收该通知消息，接入网设备通过解析该通知消息，获取该网络切片的切片标识与该网络切片的策 略参数。该网络切片的切片标识指的是能够唯一标识该网络切片的信息。接入网设备可以根据切片标识识别出该网络切片。
本申请实施例通过设置网络切片的策略参数，然后按照网络切片的策略参数处理网络切片，可以实现网络切片的差异化处理，有利于提高网络切片的服务质量。
结合第一方面，在第一方面的一种可能的实现方式中，该网络切片的优先级为与接入控制策略有关的接入类别优先级，其中，较高的接入类别优先级相对于较低的接入类别优先级优先接入网络。
因此，本实施例通过设置网络切片的接入类别优先级，然后按照网络切片的接入类别优先级配置网络切片的接入控制策略，从而可以控制网络切片允许接入的用户数量，可以在一定程度上保障网络切片的服务质量。
结合第一方面，在第一方面的一种可能的实现方式中，该网络切片的策略参数为接入类别优先级；该核心网设备获取该网络切片的策略参数，包括：该核心网设备将系统中所有网络切片划分为至少两个接入类别，并按照该至少两个接入类别设置接入类别优先级；该核心网设备获取该网络切片的策略参数，该网络切片的策略参数为该网络切片所属的接入类别所对应的接入类别优先级。
结合第一方面，在第一方面的一种可能的实现方式中，该方法还包括：该核心网设备向终端设备通知该网络切片的接入类别，该终端设备为与该网络切片建立签约关系的终端设备。
结合第一方面，在第一方面的一种可能的实现方式中，该网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
结合第一方面，在第一方面的一种可能的实现方式中，该方法还包括：该核心网设备向终端设备通知该网络切片的接入类别，该终端设备为与该网络切片建立签约关系的终端设备。
可选地，该网络切片的策略参数为调度控制策略参数。例如，该调度控制策略参数为调度优先级，其中，较高的调度优先级相对于较低的调度优先级优先进行资源调度。
本实施例通过设置网络切片的调度控制策略参数，然后按照网络切片的调度控制策略参数控制网络切片的资源调度，可以在一定程度上保障网络切片的服务质量。
可选地，该网络切片的策略参数为带宽控制策略参数。
因此，本实施例通过设置网络切片的带宽控制策略参数，可以灵活配置网络切片的带宽大小，可以在一定程度上保障网络切片的服务质量。
结合第一方面，在第一方面的一种可能的实现方式中，该核心网设备向该网络切片对应的接入网设备发送该网络切片的策略参数，包括：该核心网设备通过用户面或控制面向该接入网设备发送该网络切片的策略参数。
结合第一方面，在第一方面的一种可能的实现方式中，该核心网设备向该网络切片对应的接入网设备发送该网络切片的策略参数，包括：该核心网设备通过接入和移动性管理功能AMF向该接入网设备发送该网络切片的策略参数。
结合第一方面，在第一方面的一种可能的实现方式中，该核心网设备向该网络切片对应的接入网设备发送该网络切片的策略参数，包括：当该网络切片的策略参数发生变更时， 该核心网设备向该接入网设备发送该网络切片变更后的策略参数。
本申请实施例在首次确定网络切片的策略参数或变更网络切片的策略参数时，均会通知接入网设备，以便于接入网络设备根据网络切片的策略参数进行配置，以保障网络切片的服务质量。
第二方面，提供一种通信方法，该方法包括：接入网设备从核心网设备接收网络切片的策略参数，该网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；该接入网设备按照该网络切片的策略参数确定该网络切片的相关策略。
结合第二方面，在第二方面的一种可能的实现方式中，该网络切片的策略参数为接入控制策略参数；其中，该接入网设备按照该网络切片的策略参数确定该网络切片的相关策略，包括：该接入网设备按照该网络切片的接入控制策略参数，确定该网络切片的接入控制参数。
结合第二方面，在第二方面的一种可能的实现方式中，该网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
结合第二方面，在第二方面的一种可能的实现方式中，该方法还包括：该接入网设备按照该网络切片的接入控制策略参数，生成该网络切片的接入控制参数；该接入网设备向终端设备发送广播消息，该广播消息中携带该网络切片的接入控制参数，该终端设备与该网络切片建立有签约关系。
结合第二方面，在第二方面的一种可能的实现方式中，该网络切片的策略参数为调度控制策略参数；其中，该接入网设备按照该网络切片的策略参数确定该网络切片的相关策略，包括：该接入网设备按照该网络切片的调度控制策略参数，确定为接入该网络切片的终端设备调度资源的策略。
结合第二方面，在第二方面的一种可能的实现方式中，该网络切片的策略参数与带宽控制策略参数；其中，该接入网设备按照该网络切片的策略参数确定该网络切片的相关策略，包括：该接入网设备按照该网络切片的带宽控制策略参，确定为接入该网络切片的终端设备分配带宽的策略。
结合第二方面，在第二方面的一种可能的实现方式中，该接入网设备从核心网设备接收网络切片的策略参数，包括：该接入网设备通过接入和移动性管理功能AMF从该核心网设备接收该网络切片的策略参数。
结合第二方面，在第二方面的一种可能的实现方式中，该接入网设备从核心网设备接收网络切片的策略参数，包括：当该网络切片的策略参数发生变更时，该接入网设备从该核心网设备接收该网络切片变更后的策略参数。
结合第二方面，在第二方面的一种可能的实现方式中，该接入网设备从核心网设备接收网络切片的策略参数，包括：该接入网设备从该核心网设备接收通知消息，该通知消息中携带该网络切片的策略参数以及该网络切片的切片标识。
第三方面，提供一种通信方法，该方法包括：终端设备接收核心网设备发送的网络切片的接入类别；终端设备接收接入网设备发送的接入控制参数，该接入控制参数中包括根据核心网发送的该网络切片的接入控制策略参数确定的该网络切片的接入控制参数；该终 端设备根据该网络切片的接入类型，在从接入网设备接收的参数中确定该网络切片的接入控制参数；该终端设备根据该网络切片的接入控制参数，进行该网络切片的接入过程。
结合第三方面，在第三方面的一种可能的实现方式中，该网络切片的接入控制策略参数为该网络切片的接入类别优先级。
结合第三方面，在第三方面的一种可能的实现方式中，该网络切片的接入控制策略参数为允许接入策略参数或禁止接入策略参数。
第四方面，提供一种通信装置，该通信装置用于执行上述第一方面或第一方面的任一可能的实现方式中的方法。具体地，该通信装置可以包括用于执行第一方面或第一方面的任一可能的实现方式中的方法的模块。
第五方面，提供一种通信装置，该通信装置用于执行上述第二方面或第二方面的任一可能的实现方式中的方法。具体地，该通信装置可以包括用于执行第二方面或第二方面的任一可能的实现方式中的方法的模块。
第六方面，提供一种通信装置，该通信装置用于执行上述第三方面或第三方面的任一可能的实现方式中的方法。具体地，该通信装置可以包括用于执行第三方面或第三方面的任一可能的实现方式中的方法的模块。
第七方面，提供一种通信装置，所述通信装置包括存储器和处理器，所述存储器用于存储指令，所述处理器用于执行所述存储器存储的指令，并且对所述存储器中存储的指令的执行使得所述处理器执行第一方面或第一方面的任一可能的实现方式中的方法。
第八方面，提供一种通信装置，所述通信装置包括存储器和处理器，所述存储器用于存储指令，所述处理器用于执行所述存储器存储的指令，并且对所述存储器中存储的指令的执行使得所述处理器执行第二方面或第二方面的任一可能的实现方式中的方法。
第九方面，提供一种通信装置，所述通信装置包括存储器和处理器，所述存储器用于存储指令，所述处理器用于执行所述存储器存储的指令，并且对所述存储器中存储的指令的执行使得所述处理器执行第三方面或第三方面的任一可能的实现方式中的方法。
第十方面，提供一种芯片，所述芯片包括处理模块与通信接口，所述处理模块用于控制所述通信接口与外部进行通信，所述处理模块还用于实现第一方面或第二方面或第三方面提供的方法。
第十一方面，提供一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被计算机执行时使得所述计算机实现第一方面或第二方面或第三方面提供的方法。
第十二方面，提供一种包含指令的计算机程序产品，所述指令被计算机执行时使得所述计算机实现第一方面或第二方面或第三方面提供的方法。
附图说明
图1为本申请实施例应用的系统架构的示意图。
图2为本申请实施例提供的通信方法的示意性流程图。
图3为本申请实施例提供的通信方法的另一示意性流程图。
图4为本申请实施例提供的通信方法的另一示意性流程图。
图5为本申请实施例提供的通信方法的另一示意性流程图。
图6为本申请实施例提供的通信方法的另一示意性流程图。
图7为本申请实施例提供的通信方法的另一示意性流程图。
图8为本申请实施例提供的通信装置的示意性框图。
图9为本申请实施例提供的另一通信装置的示意性框图。
图10为本申请实施例提供的另一通信装置的示意性框图。
图11为本申请实施例提供的另一通信装置的另一示意性框图。
图12为本申请实施例提供的另一通信装置的示意性框图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
图1为本申请实施例应用的系统架构的示意图。该系统架构包括终端设备(图1中示意的UE)、接入网(Radio Access Network，RAN)设备(图1中示意的RAN)和核心网(Core Network，CN)设备。
其中，该终端设备可以为用户设备(user equipment，UE)、手持终端、笔记本电脑、用户单元(subscriber unit)、蜂窝电话(cellular phone)、智能电话(smart phone)、无线数据卡、个人数字助理(personal digital assistant，PDA)电脑、平板型电脑、无线调制解调器(modem)、手持设备(handheld)、膝上型电脑(laptop computer)、无绳电话(cordless phone)或者无线本地环路(wireless local loop，WLL)台、机器类型通信(machine type communication，MTC)终端或是其他可以接入网络的设备。终端设备(如图1中的UE)与接入网设备(图1中示意的RAN)之间采用某种空口技术相互通信。
该接入网设备(RAN)主要负责空口侧的无线资源管理、服务质量(quality of service，QoS)管理、数据压缩和加密等功能。该接入网设备可以包括各种形式的基站，例如：宏基站，微基站(也称为小站)，中继站，接入点等。在采用不同无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如，在第五代(5th generation，5G)系统中，称为gNB；在LTE系统中，称为演进的节点B(evolved NodeB，eNB或者eNodeB)；在第三代(3rd generation，3G)系统中，称为节点B(Node B)等。
如图1所示，核心网设备包括如下网络功能(Network Function，NF)。
接入和移动性管理功能(access and mobility management function，AMF)。
AMF主要负责信令处理部分，例如：接入控制、移动性管理、附着与去附着以及网关选择等功能。在AMF为终端设备中的会话提供服务的情况下，AMF会为该会话提供控制面的存储资源，存储会话标识、与会话标识关联的SMF标识等。
会话管理功能(Session Management Function，SMF)。
SMF负责如下功能：用户面网元选择，用户面网元重定向，因特网协议(internet protocol，IP)地址分配，承载的建立、修改和释放，以及服务质量(Quality of Service，QoS)控制。
策略控制功能(policy control function，PCF)。
PCF主要支持提供统一的策略框架来控制网络行为，提供策略规则给控制层网络功能，同时负责获取与策略决策相关的用户签约信息。
网络数据分析功能(Network Data Analytics Function,NWDAF)。
NWDAF主要支持大数据的收集和分析，给其他相关网元提供分析结果。
如图1所示，该系统架构还包括用户面功能(User Plane Function，UPF)。UPF负责终端设备中用户数据的转发和接收。UPF可以从数据网络(即核心网)接收用户数据，通过接入网设备传输给终端设备；UPF还可以通过接入网设备从终端设备接收用户数据，转发到数据网络。UPF中为终端设备提供服务的传输资源和调度功能由SMF管理控制。
如图1所示，上述核心网中的各个网络功能互相通信连接。其中，AMF还可以分别与终端设备(UE)以及接入网络设备(RAN)通信连接；SMF还可以与UPF通信连接。
虽然图1中还示出了核心网中其它的网络功能，例如网络切片选择功能(Network Slice Selection Function，NSSF)、网络开放功能(Network Exposure Function，NEF)、NF存储功能(NF Repository Function，NRF)、同一数据管理(Unified Data Management，UDM)、应用功能(Application Function，AF)与鉴权服务器功能(Authentication Server Function，AUSF)，图1中还示出了数据网络(Data Network，DN)，但是可以理解这些网元并不对本实施例构成限制性说明，仅是示意性的。
图2为本申请实施例提供的通信方法的示意性流程图。该方法包括如下流程。
S201，核心网设备获取网络切片的策略参数，该网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数。
核心网设备获取网络切片的策略参数，可以表示，核心网设备生成该网络切片的策略参数，也可以表示核心网设备通过其他设备获取到网络切片的策略参数。
可选地，该核心网设备通过NWDAF获取该网络切片的策略参数。
具体地，核心网设备向NWDAF订阅或请求分析该网络切片的策略参数，核心网设备根据NWDAF反馈的分析结果，确定该网络切片的策略参数。
可选地，该核心网设备根据预定义算法获取该网络切片的策略参数。
例如，该预定义算法为根据网络切片的类型确定该网络切片的策略参数，或者，根据该网络切片签订的SLA指标要求来确定该网络切片的策略参数，再或者，根据管理网元为该网络切片配置的切片参数来确定确定该网络切片的策略参数。
该网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数。其中，接入控制策略参数表示用于控制终端设备接入网络的参数；调度控制策略参数表示用于为接入网络的终端设备调度资源的参数；带宽控制策略参数表示用于为接入网络的终端设备分配带宽的参数。例如，该带宽控制策略参数指示为该网络切片分配的最大带宽，则为接入该网络切片的终端设备分配的带宽要小于或等于该网络切片所分配的最大带宽。
网络切片的策略参数可以具体为网络切片的优先级。例如，网络切片的接入控制策略参数为网络切片的接入类别优先级；网络切片的调度控制策略参数为网络切片的调度优先级。
S202，该核心网设备向该网络切片对应的接入网设备发送该网络切片的策略参数。相应地，接入网设备从核心网设备接收网络切片的策略参数。
具体地，该核心网设备向该接入网设备发送通知消息，该通知消息中携带该网络切片 的策略参数以及该网络切片的切片标识。相应地，该接入网设备从该核心网设备接收该通知消息，接入网设备通过解析该通知消息，获取该网络切片的切片标识与该网络切片的策略参数。该网络切片的切片标识指的是能够唯一标识该网络切片的信息。接入网设备可以根据切片标识识别出该网络切片。
S203，该接入网设备按照该网络切片的策略参数确定该网络切片的相关策略。
当该网络切片的策略参数为接入控制策略参数时，该接入网设备按照该网络切片的接入控制策略参数生成该网络切片的接入控制参数。
当该网络切片的策略参数为调度控制策略参数时，该接入网设备按照该网络切片的调度控制策略参数，确定用于为接入该网络切片的终端设备调度传输资源的策略。
当该网络切片的策略参数为带宽控制策略参数时，该接入网设备按照该网络切片的带宽控制策略参数，确定用于为接入该网络切片的终端设备分配网络带宽的策略。
为了便于理解与描述，本实施例以一个网络切片为例进行描述，但本申请实施例并非限定于此，对于网络切片系统中的所有网络切片，均可以通过本申请实施例提供的方法来处理。
本申请实施例通过设置网络切片的策略参数，然后按照网络切片的策略参数处理网络切片，可以实现网络切片的差异化处理，有利于提高网络切片的服务质量。
需要说明的是，本实施例中的核心网设备可以是核心网中的某种网络功能(NF)。可选地，该核心网设备为图1中的NWDA、PCF、NSSF或者AMF。可选地，该核心网设备还可以是当前已定义的网络功能之外的另外一种网络功能，例如，将这种网络功能称为切片控制功能(slice control function，SCF)。
可选地，当该核心网设备为除AMF之外的一个网络功能时，S202具体包括：该核心网设备通过AMF向该接入网设备发送该网络切片的策略参数。相应地，接入网设备通过AMF从该核心网设备接收该网络切片的策略参数。
可选地，在一些实施例中，该网络切片的策略参数为接入控制策略参数，具体地，为接入类别优先级。对应地，在S203中，该接入网设备按照该网络切片的接入类别优先级，确定该网络切片的接入控制参数。接入网设备可以通过广播消息向终端设备发送该网络切片的接入控制参数，以便于终端设备进行网络接入。
具体地，接入控制策略参数包括但不限定于：允许接入、禁止接入、禁止接入时长、禁止接入的概率等。禁止接入时长表示接入失败后到下次接入之间的时长。
例如，接入类别优先级包括高、低两个等级，其中高优先级表示允许接入，低优先级表示禁止接入。假设该网络切片的接入类别优先级表示允许接入时，接入网设备确定的接入控制参数也指示终端设备可以接入网络。当该网络切片的接入类别优先级表示禁止接入时，接入网设备确定的接入控制参数也指示终端设备禁止接入网络。
再例如，接入类别优先级包括多个等级，例如，包括优先级1、优先级2、优先级3，其中优先级1表示允许接入，且接入失败后的等待时长为T1；优先级2表示允许接入，且接入失败后的等待时长为T2，T2＞T1；优先级3表示禁止接入。优先顺序为：优先级1＞优先级2＞优先级3。假设该网络切片的接入类别优先级表示允许接入，且接入失败后的等待时长为T2，则接入网设备确定的接入控制参数也指示终端设备按照这种策略接入 该接入网络。
作为一种实现方式，S201具体包括：该核心网设备将系统中所有网络切片划分为至少两个接入类别，并按照该至少两个接入类别设置接入类别优先级；该核心网设备获取该网络切片的接入类别优先级，该网络切片的接入类别优先级为该网络切片所属的接入类别所对应的接入类别优先级。
可选地，该网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
如果系统中网络切片的数量很多，将所有网络切片划分成数量较少的几个接入类别，然后按照接入类别设置接入类别优先级，按照接入类别优先级配置接入控制参数，这样可以降低向终端设备下发接入控制参数的信令开销。
应理解，该核心网设备也可以以网络切片为单位设置接入类别优先级。本申请实施例对此不作限定。
在本实施例中，接入网设备根据网络切片的接入类别优先级生成接入控制参数。例如，接类别优先级与接入控制参数一一对应。接入网设备向终端设备广播的系统消息中可能包括多个接入类别优先级的网络切片的接入控制参数，终端设备需要根据网络切片的接入类别从系统消息中找到对应网络切片的接入控制参数。因此，在根据网络切片的接入类别设置网络切片的接入类别优先级的情况下，需要预先向终端设备通知网络切片的接入类别，该终端设备与该网络切片建立有签约关系。
可选地，通过静态配置的方式，让终端设备获知网络切片的接入类别。
例如，用户在与网络切片建立签约关系时，静态保存该网络切片的接入类别。例如，用户将该网络切片的接入类别存储在SIM卡或终端设备内的存储空间中。网络侧对应的用户签约数据库(例如UDM)中也会保存该网络切片的接入类别。
网络切片的接入类别的静态配置的操作比较简单，较易部署，无需修改当前网络的信令。
可选地，通过动态配置的方式，让终端设备获知网络切片的接入类别。
该核心网设备通过AMF向终端设备通知该网络切片的接入类别，该终端设备为与该网络切片建立签约关系的终端设备。
应理解，通过设置网络切片的接入类别优先级，然后按照网络切片的接入类别优先级配置网络切片的接入控制策略，从而可以实现网络切片的差异化接入控制。
例如，假设一个网络切片的负载较小，可以为该网络切片设置较高的接入类别优先级，例如，允许该网络切片接入较多的用户。当该网络切片的负载已满或者已经接近满负载时，这时降低该网络切片的接入类别优先级，例如，减少允许接入该网络切片的用户数量，或者禁止接入该网络切片。这样可以保障该网络切片的服务质量。
因此，本实施例通过设置网络切片的接入类别优先级，然后按照网络切片的接入类别优先级配置网络切片的接入控制策略，从而可以控制网络切片允许接入的用户数量，可以在一定程度上保障网络切片的服务质量。
可选地，在一些实施例中，该网络切片的策略参数为调度控制策略参数。
具体地，核心网设备根据该网络切片的SLA指标或该网络切片的类型，确定该网络切片的调度控制策略参数。
具体地，调度控制策略参数为调度优先级。其中，较高的调度优先级相对于较低的调度优先级优先进行资源调度。
例如，一个网络切片的SLA指标偏低时，可以为其设置较高的调度优先级，该调度优先级指示优先为接入该网络切片内的用户调度传输资源，从而提升该网络切片的SLA指标。
在本实施例中，S202具体包括：该核心网设备通过用户面或控制面向该接入网设备发送该网络切片的调度控制策略参数。相应地，该接入网设备通过用户面或控制面从该核心网设备接收该网络切片的调度控制策略参数。
本实施例通过设置网络切片的调度优先级，然后按照网络切片的调度优先级控制网络切片的资源调度，可以在一定程度上保障网络切片的服务质量。
可选地，在一些实施例中，该网络切片的策略参数为带宽控制策略参数。
具体地，核心网设备基于该网络切片的最大带宽，确定该网络切片的带宽控制策略参数。例如，将将该网络切片的最大带宽作为该网络切片的带宽控制策略参数。接入网设备接收到该网络切片的带宽控制策略参数后，在为接入该网络切片的终端设备分配带宽时，要小于或等于该最大带宽。
在本实施例中，S202具体包括：该核心网设备通过用户面或控制面向该接入网设备发送该网络切片的带宽控制策略参数。
该网络切片的带宽控制策略参数指示带宽的大小。
因此，本实施例通过设置网络切片的带宽控制策略参数，可以灵活配置网络切片的带宽大小，可以在一定程度上保障网络切片的服务质量。
可选地，核心网设备在首次确定该网络切片的策略参数时，向接入网设备通知该网络切片的策略参数。
可选地，核心网设备在变更(或调整)该网络切片的策略参数时，向接入网设备通知该网络切片更新后的策略参数。
例如，当对该网络切片的接入类别优先级降级时，核心网设备向接入网设备通知该网络切片降低后的接入类别优先级。再例如，当对该网络切片的接入类别优先级升级时，核心网设备向接入网设备通知该网络切片升低后的接入类别优先级。
本申请实施例在首次确定网络切片的优先级或变更网络切片的策略参数时，均会通知接入网设备，以便于接入网络设备根据网络切片的策略参数进行配置，以保障网络切片的服务质量。
上述可知，本申请实施例提供的方案可以应用于接入控制的场景，在这个场景下，通过本申请的方案可以实现网络切片的差异化接入。本申请实施例提供的方案还可以应用于终端设备接入网络之后进行资源调度控制的场景，在这个场景下，通过本申请的方案可以实现网络切片的差异化调度，还可以实现差异化带宽配置。
为了更好地理解本申请实施例，下文结合图3至图7具体描述本申请实施例提供的方案在接入控制场景与调度控制场景中的具体实现。
为了便于理解与描述，在下面的实施例中，以接入控制策略参数为接入类别优先级为例，以调度控制策略参数为调度优先级为例进行描述。
(1)接入控制场景。
终端设备接入网络的过程大致为：终端设备从接入网设备(RAN)获取接入控制参数；然后，根据该接入控制参数接入网络。
例如，接入控制参数包括但不限于：接入禁止检查指示，布尔类型参数可以设置为允许接入或不允许接入；也可以是接入禁止系数(BarringFactor)，指示接入禁止的概率，和接入禁止时间(BarringTime)，指示平均禁止时间，等。
在这个场景中，本申请实施例提供的方法包括如下步骤：
1)核心网设备确定网络切片的接入类别。
可选地，核心网设备通过预定义算法获得网络切片的接入类别。
具体地，预定义算法为根据网络切片的类型确定接入类别，根据网络切片签订的SLA指标要求签订，或者根据管理网元配置的切片参数设定接入类别。
可选地，核心网设备根据大数据算法模块的分析，获得网络切片的接入类别。
例如，核心网设备向NWDAF订阅或请求分析网络切片的接入类别，核心网设备根据NWDAF反馈的分析结果确定网络切片的接入类别。
2)核心网设备按照网络切片的接入类别确定该网络切片的接入类别优先级。
可选地，核心网设备通过预定义算法确定网络切片的接入类别优先级。
具体地，预定义算法为根据如下因素中的至少一种因素确定网络切片的接入类别优先级：网络切片的类型，网络切片签订的SLA指标要求，管理网元为该网络切片配置的切片参数。
可选地，核心网设备根据大数据算法模块的分析，获得网络切片的接入类别优先级。
例如，核心网设备向NWDAF订阅或请求分析网络切片的接入类别优先级，核心网设备根据NWDAF反馈的分析结果确定网络切片的接入类别优先级。
不同接入类别的网络切片的接入类别优先级不完全相同。例如，不同的接入类别对应不同的接入类别优先级。再例如，两种或多种接入类别对应同一个优先级。
不同接入类别优先级的网络切片的用户接入网络的难易程度不同。例如，接入类别优先级较低的网络切片的用户禁止接入网络切片，接入类别优先级较高的网络切片的用户允许接入网络切片。再例如，接入类别优先级较高的网络切片的用户相对于接入类别优先级较高的网络切片的用户优先接入网络切片。
3)核心网设备向接入网设备通知该网络切片的接入类别优先级。
4)接入网设备根据该网络切片的接入类别优先级，生成该网络切片的接入控制参数。
接入网设备向终端设备广播该网络切片的接入控制参数，以便于终端设备按照接入控制参数进行接入网络的过程。
在这个场景中，需要预先将网络切片的接入类别配置到与该网络切片建立有签约关系的终端设备上。
可选地，网络切片的接入类别是静态配置到终端设备上的。
例如，用户在与网络切片建立签约关系时，静态保存该网络切片的接入类别。例如，用户将该网络切片的接入类别存储在SIM卡或终端设备内的存储空间中。网络侧对应的用户签约数据库(例如UDM)中也会保存该网络切片的接入类别。
网络切片的接入类别的静态配置的操作比较简单，较易部署，无需修改当前网络的信令。
可选地，网络切片的接入类别是动态配置到终端设备上的。
具体地，图3为动态配置网络切片的接入类型到终端设备上的示意图。在图3中将核心网设备记为SCF，将接入网设备记为RAN，将终端设备记为UE。如图3所示，该方法包括如下流程。
S301，SCF确定网络切片的接入类别。
可选地，SCF通过预定义算法获得网络切片的接入类别。
具体地，预定义算法为根据网络切片的类型确定接入类别，根据网络切片签订的SLA指标要求签订，或者根据管理网元配置的切片参数设定接入类别。
可选地，SCF根据大数据算法模块的分析，获得网络切片的接入类别。
如图3所示，SCF向NWDAF订阅或请求分析网络切片的接入类别，SCF根据NWDAF反馈的分析结果确定网络切片的接入类别。
例如，NWDAF可以直接反馈指定切片的接入类别，或者反馈指定切片需要增加或者降低接入优先级的指示信息。
S302，SCF通过AMF将网络切片的接入类别发送给UE。
首先，AMF从SCF获取网络切片的接入类别，然后AMF将该网络切片的接入类别发送给与该网络切片建立签约关系的UE。
可选地，作为一种实现方式，AMF向SCF订阅网络切片接入类别(slice access category)配置。如果一个网络切片的接入类型发生变更，SCF会通知AMF该网络切片的新的接入类别。
在本实现方式中，AMF可以通过多种方式向UE发送从SCF获取到的网络切片的接入类别。
例如，AMF通过UE的配置更新(UE configuration update)过程通知该UE网络切片的接入类别。
再例如，AMF在UE下次进行注册(registration)或者注册更新(registration update)过程中，向该UE发送网络切片的接入类别。例如，在接收到UE发送的注册请求消息后，在注册响应消息中携带网络切片的接入类别。
应理解，针对一个网络切片的接入类别，AMF向与该网络切片建立签约关系的UE发送该网络切片的接入类别。还应理解，在向UE发送网络切片的接入类别的同时，也会发送该网络切片的标识，即在系统中用于唯一标识该网络切片的信息。
上述第一种实现方式适用于SCF为新定义的网络功能，或者，SCF为NSSF、NWDA、或的场景。
可选地，作为第二种实现方式，AMF不主动从SCF获取网络切片的接入类别，在UE做注册(registration)或者注册更新(registration update)的过程中，当AMF将要向UE回复注册响应(registration accept)消息时，先访问SCF，在访问SCF的过程中，获取允许该UE访问的网络切片对应的接入类别，然后AMF向UE发送注册响应(registration accept)消息，该注册响应(registration accept)消息中携带从SCF获取的网络切片的接入 类别。
应理解，第二种实现方式适用于SCF为PCF的场景。因为在UE的注册(registration)或者注册更新(registration update)的过程中，AMF本来就需要向PCF通过Npcf_AMPolicyControl get请求注册相关策略，在第二种实现方式中，网络切片的接入类别携带在PCF回复AMF的注册策略中。
图4为本申请实施例提供的通信方法应用于接入控制场景中的示意性流程图。在图4中将核心网设备记为SCF，将接入网设备记为RAN，将终端设备记为UE。该方法包括如下流程。
S401，SCF确定网络切片的接入类别(Access category，AC)优先级。
首先，SCF确定网络切片的接入类别。具体地，按照上文结合图3描述的方法确定网络切片的接入类别，这里不再赘述。
SCF按照网络切片的接入类别，获取网络切片的接入类别级。
可选地，SCF可以通过预定义算法获得网络切片的接入类别优先级。
例如，预定义算法指的是根据如下因素中的至少一种确定网络切片的接入类别优先级：网络切片的类型，网络切片签订的SLA指标要求，管理网元为该网络切片配置的切片参数。
可选地，SCF可以根据大数据算法模块的分析获得网络切片的接入类别优先级。
如图4所示，SCF从NWDAF订阅或请求分析网络切片的接入类别优先级，SCF根据NWDAF提供的分析结果确定网络切片的接入类别优先级。
具体地，SCF网络可以根据一个网络切片的实时状态确定该网络切片的接入类别优先级。
例如，当一个网络切片的负载已满或者已经接近满负载时，SCF降低该网络切片对应的接入类别优先级，从而使得接入该网络切片的用户数量增长率降低。
再例如，当一个网络切片在某地理区域有临时事件发生，需要大流量或者面临大量用户接入时，SCF可以临时在该地理区域提高该网络切片对应的接入类别优先级。
可选地，在一些实施例中，网络切片的接入类别优先级包括两个优先级：高优先级与低优先级，其中，高优先级表示允许接入，低优先级表示禁止接入。
可选地，在一些实施例中，网络切片的接入类别优先级包括N个优先级，优先级高低顺序为，优先级1＞优先级2＞…＞优先级N-1＞优先级N，N为正整数。
例如，接入类别优先级为优先级1的网络切片的用户相对于接入类别优先级为优先级2的网络切片的用户更容易接入网络。例如更小的接入禁止系数，更短的接入禁止时间。
S402，SCF向AMF发送网络切片的接入类别优先级。
SCF向AMF发送配置消息，该配置消息用于指示S401中确定的网络切片的接入类别优先级，该配置消息中包括该网络切片的切片标识与该网络切片的接入类别优先级。
例如，该网络切片的切片标识为S-NSSAI或者NSI。
可选地，该配置消息中还可以包括网络切片的接入类别配置相关信息，如接入类别的优先级，接入类别ID，接入类别对应的切片标识，对应的接入请求类型，或者对应DN名称，QoS，App ID，等以上参数的一个或几个的组合。
可选地，该配置消息中还可以包括该网络切片对应的跟踪区列表(Tracking Area list，TA list)，以及该网络切片对应的公共陆地移动网络(Public Land Mobile Network，PLMN)ID。
可选地，在一些实施例中，如果一个网络切片X的接入类别优先级发生变更，SCF向AMF发送配置消息，该配置消息指示网络切片X的更新之后的接入类别优先级，该配置消息中携带该网络切片X的切片标识(slice ID)与该网络切片X的接入类别优先级。
例如，该网络切片X的切片标识为S-NSSAI或者NSI。可选地，该配置消息中还可以包括网络切片X的接入类别配置相关信息。可选地，该配置消息中还可以包括该网络切片X对应的TA list，以及该网络切片X对应的PLMN ID。
可选地，在一些实施例中，AMF可以与SCF订阅网络切片接入类别优先级(slice access category priority)事件。这样，SCF会实时向AMF通知网络切片的接入类别优先级。例如，首次确定一个网络切片的接入类别优先级后，或者，在一个网络切片的接入类别优先级发生变更后，SCF向AMF发送该网络切片的最新的接入类别优先级。
S403，AMF向接入网设备(RAN)发送网络切片的接入类别优先级。
具体地，AMF通过AMF配置更新(AMF configuration update)消息向RAN发送网络切片的接入类别优先级，该AMF配置更新消息中携带网络切片的切片标识以及该网络切片的接入类别优先级。
可选地，该AMF配置更新消息中还可以携带接入类型配置相关信息，还可以包括该网络切片对应的TA list和PLMN ID。
具体地，AMF网络根据该网络切片的切片标识，选择已经建立了NG接口的RAN，然后向该RAN发送该AMF配置更新消息。
NG接口为接入网设备(RAN)与AMF之间进行通信的接口。
可选地，在一些实施例中，在AMF欲向RAN发送网络切片的接入类别优先级时，该RAN尚未建立NG接口，即，这时AMF无法与RAN进行通信，在这种情形下，AMF在后续与RAN建立NG接口的过程中向RAN发送网络切片的接入类别优先级，例如，AMF在接收到RAN发送的NG接口建立请求(NG setup request)消息之后，向RAN发送NG建立响应(NG setup response)消息，该NG建立响应消息中携带网络切片的接入类别优先级。相应地，RAN通过解析NG建立响应消息，可以获得网络切片的接入类别优先级。
S404，RAN根据网络切片的接入类别优先级，设置该网络切片的接入控制参数。
RAN基于网络切片的接入类别来配置该网络切片的接入控制参数。相应地，终端设备选择一个要接入的网络切片，根据该网络切片的接入类别确定该网络切片的接入控制参数，然后根据该接入控制参数，接入该网络切片。
RAN通过广播消息(system information)广播该接入控制参数。相应地，终端设备(UE)接收到RAN发送的广播消息。当UE需要发起连接请求时，根据已经建立签约关系的网络切片的接入类别，从接收到的接入控制参数中查找该接入类别对应的接入控制参数，然后根据该接入控制参数，决定是否接入该网络切片，以及如何接入。UE根据接入控制参数，接入网络切片的过程为现有技术，本文不再赘述。
可选地，在一些实施例中，AMF还可以根据SCF的指示，重新配置UE的接入策略，如Network Slice Selection Policy(NSSP)，指示当UE发现需要接入的网络切片被禁止接入时，对于相应的应用可以选择另一个网络切片，如默认网络切片，避免UE处于无法进行服务的状态。
应理解，传统移动网络在通过空口广播接入控制参数(access barring config)，终端设备接收后根据接入控制参数的配置，进行接入。现有技术中，网络侧通过配置接入控制参数，可以允许或者拒绝用户接入，以避免网络拥塞发生。
而本申请提供的方案，除了可以实现用户差异化之外，还可以实现网络切片的差异化处理。假设网络切片X1的负载较大，网络切片X2的负载较小，则将网络切片X1的接入类别优先级设置为低优先级，将将网络切片X2的接入类别优先级设置为高优先级，从而在终端接入网络过程中，使得接入网络切片X1的用户较少，接入网络切片X2的用户较多，这样可以有效提高网络切片的服务质量。
网络侧都可以通过动态调整网络切片的接入类别对应的优先级，即网络切片的接入类别优先级，对不同的网络切片接入终端设备的数量进行差异化控制。
因此，本实施例通过对不同网络切片进行差异化的接入控制，从而控制不同网络切片可以接入的用户数量，进而可以在一定程度上提高网络切片的服务质量。
上文描述将本申请实施例提供的通信方法应用于接入控制的场景中的具体实现，下文将描述将本申请实施例提供的通信方法应用于调度控制的场景中的具体实现。
(2)调度控制的场景。
调度控制的场景指的是，终端设备接入网络后，网络侧为终端设备调度上下行资源场景。
本实施例通过对不同网络切片进行差异化的调度控制，以影响不同网络切片对当前处于连接态的UE的资源调度。
核心网设备确定网络切片的调度优先级，然后通过用户面或者控制面的方式向接入网设备通知网络切片的调度优先级。
图5为本申请实施例提供的对网络切片进行差异化调度控制的方法的示意图。在图5中将核心网设备记为SCF，将接入网设备记为RAN，将终端设备记为UE。在本实施例中，核心网设备通过用户面的方式向接入网设备通知网络切片的调度优先级。该方法包括如下流程。
S501，SCF确定网络切片的调度优先级。
可选地，SCF通过预定义算法获得多个网络切片之间的调度优先级。
可选地，SCF根据大数据算法模块的分析获得多个网络切片之间的调度优先级。
如图5所示，SCF向NWDAF订阅或请求分析网络切片的调度优先级，SCF根据NWDAF反馈的分析结果，确定网络切片的调度优先级。
例如，一个网络切片的服务等级协议(Service-Level Agreement，SLA)指标偏低时，应该提高该网络切片的调度优先级，以使得接入该网络切片的用户更容易获得调度资源，从而提升该网络切片的SLA。反之亦然。
S502，SCF向SMF发送网络切片的调度优先级。
SCF可以采用如下两种方式向SMF通知网络切片的调度优先级。
第一种方式：SCF通过PCF通知SMF网络切片的调度优先级。
例如，PCF通过SCF的网络切片优先级订阅(slice priority subscribe)接口，在SCF上订阅网络切片的调度优先级变化的通知消息，订阅接口中可以提供网络切片的标识(slice ID)。可选地，订阅接口中还可以包括网络切片对应的TA list与PLMN ID。
再例如，当PCF订阅的网络切片的调度优先级需要调整时，SCF会向PCF发送通知消息，该通知消息中携带调整后的网络切片的调度优先级，以及该网络切片的标识。可选地，该通知消息中还可以携带该网络切片对应的TA list。
PCF接收到SCF发送的通知消息后，通过Npcf_SMPolicyControl接口向SMF发送该通知消息。例如，该通知消息通知SMF，调整指定的TA下的一个及以上的UE对应的session需要调整的优先级如调整相应的QoS参数。
应理解，跟踪区(TrackingArea)是LTE系统为UE的位置管理新设立的概念。当UE处于空闲状态时，核心网络能够知道UE所在的跟踪区，同时当处于空闲状态的UE需要被寻呼时，必须在UE所注册的跟踪区的所有小区进行寻呼。TA是小区级的配置，多个小区可以配置相同的TA，且一个小区只能属于一个TA。
第二种方式：SCF直接通知SMF网络切片的调度优先级。
例如，SMF通过SCF的网络切片优先级订阅(slice priority subscribe)接口，在SCF上订阅网络切片的调度优先级变化的通知消息，订阅接口中可以提供网络切片的标识(slice ID)。可选地，订阅接口中还可以包括网络切片对应的TA list与PLMN ID。
再例如，当SMF订阅的网络切片的调度优先级需要调整时，SCF会向SMF发送通知消息，该通知消息中携带调整后的网络切片的调度优先级，以及该网络切片的标识。可选地，该通知消息中还可以携带该网络切片对应的TA list。
以一个网络切片为例，当SCF首次确定该网络切片的调度优先级时，或者，当SCF对该网络切片的调度优先级进行调整后，都会向SMF发送网络切片的调度优先级。
S503，SMF向UPF发送N4会话通知(N4 session modification)消息，该N4 session modification消息中携带网络切片的调度优先级。
如果SMF是直接从SCF获取到网络切片的调度优先级的通知消息(slice priority notification)时，则需要选择指定TA下的指定UE的指定session，通过N4 session modification消息通知相应的UPF，修改对应的session的优先级，例如，通知新的QoS参数，或者通知UPF提升QoS。应理解，SMF是按用户的会话(session)粒度进行管理的。这时N4会话通知消息中携带的是QoS参数，该QoS参数是根据网络切片的调度优先级确定的。优先级高的切片，使用优先级高的QoS参数。
如果SMF是从PCF获取到网络切片的调度优先级的通知消息时，与现有技术中PCF触发PDU session motification类似，根据其指示，通过N4 session modification向UPF通知网络切片的调度优先级。
S504，UPF向RAN发送消息，该消息中携带网络切片的调度优先级。
UPF根据SMF的N4 session modification消息，调整对应UE的对应session的调度优先级。
例如，下行数据可以通过数据包头中携带高优先级QoS的5QI指示，来通知RAN。对于上行数据，可以根据reflective QoS机制，通过下行的5QI变化指示上行的5QI变化。
S504，RAN根据获取到的网络切片的调度优先级，在空口进行相应地调度。
例如，RAN根据数据包头中的5QI指示，可以获得对应的QoS参数，根据对应的QoS参数在空口进行相应的调度。
图6为本申请实施例提供的对网络切片进行差异化调度控制的方法的另一示意图。在图6中将核心网设备记为SCF，将接入网设备记为RAN，将终端设备记为UE。在本实施例中，核心网设备通过控制面的方式向接入网设备通知网络切片的调度优先级。该方法包括如下流程。
S601，SCF确定网络切片的调度优先级。
S601与S501相同，具体描述件S501中的描述，这里不再赘述。
S602，SCF向AMF通知网络切片的调度优先级。
SCF可以通过如下两种方式向AMF通知网络切片的调度优先级。
第一种方式：SCF通过PCF向AMF通知网络切片的调度优先级。
PCF可通过SCF的slice priority subscribe接口，在SCF上订阅slice优先级变化的通知消息，订阅接口中可以提供slice ID,可选的还可以包含对应的TA list，以及对应的PLMN ID。
当订阅的网络切片的调度优先级调整时，SCF会向PCF发送通知消息，通知消息中携带网络切片的标识和网络切片的调度优先级。
可选地，通知消息中还包括网络切片对应的TA list。
PCF通过Npcf_AMpolicy_control接口向AMF发送通知消息，该通知消息中携带网络切片的调度优先级。可选地，该通知消息中还可以携带网络切片对应的TA list。
第二种方式：SCF直接向AMF通知网络切片的调度优先级。
例如，AMF在SCF上订阅Nscf_AMpolicy_control通知。当订阅的网络切片的调度优先级调整时，SCF会向PCF发送通知消息，通知消息中携带网络切片的标识和网络切片的调度优先级。可选地，通知消息中还包括网络切片对应的TA list。
以一个网络切片为例，当SCF首次确定该网络切片的调度优先级，或者对该网络切片的调度优先级调整之后，SCF向PCF或AMF发送用于指示网络切片的调度优先级。
S603，AMF向RAN网元发送调度优先级的消息。
AMF在收到网络切片的调度优先级的通知消息后，通过和RAN之间的NG接口发送AMF配置更新(AMF configuration update)消息，该AMF配置更新消息携带网络切片的调度优先级。
如果AMF收到的slice ID是NSI的话，需要转换成slice对应的S-NSSAI。应理解，Slice ID在不同的地方有不同的标识方式，在CN内可以通过NSI或者S-NSSAI，CN和RAN之间使用S-NSSAI表示。
S604，RAN根据从AMF接收到的AMF配置更新消息，进行资源调度。
RAN通过解析AMF配置更新消息，获取网络切片的调度优先级，然后，RAN根据网络切片的调度优先级和UE的会话(session)QoS参数，确定资源调度策略。
例如，在session QoS参数相同的情况下，调度优先级较高的网络切片的UE被优先进行调度。
本申请实施例通过设置网络切片的调度优先级，实现调度优先级较高的网络切片的用户优先被分配调度资源。
应理解，通过设置网络切片的调度优先级，可以对已经接入网络的UE执行网络切片之间的差异化处理。
CN可以通过控制RAN对不同切片的资源分配来差异化的管理不同切片的SLA。CN不合适直接管理RAN的无线频谱分配，所以可以通过控制切片级带宽/速率限制来进行间接资源控制。
图7为本申请实施例提供的对网络切片进行差异化调度控制的方法的另一示意图。该方法包括如下流程。
S701，SCF确定网络切片的带宽控制策略参数。
可选地，SCF通过预定义算法确定网络切片的带宽控制策略参数。
可选地，SCF根据大数据算法模块的分析，获得带宽控制策略参数。
如图7中所示，SCF从NWDAF订阅或请求分析网络切片的带宽控制策略参数，SCF根据NWDAF反馈的分析结果，确定网络切片的带宽控制策略参数。
例如，可以根据如下规则确定带宽控制策略参数：当网络切片X的SLA偏低时，可以增加该网络切片X的网络带宽，或者，限制其他网络切片的网络带宽。这样的带宽控制策略参数可以保障该网络切片X可以获得网络资源，以提高该网络切片X的SLA。
具体地，SCF或者NWDAF可以通过UPF或者网络切片的带宽统计报告，来确定网络切片的带宽控制策略参数。
S702，SCF向AMF发送通知消息，该通知消息中携带网络切片的带宽控制策略参数。
具体地，SCF可以通过如下两种方式向AMF发送该通知消息。
第一种方式：SCF通过PCF向AMF发送该通知消息。
SCF向PCF发送该通知消息，PCF向AMF发送该通知消息。
第二种方式：SCF直接向AMF发送该通知消息。
具体地，SCF需要选择对应的AMF，通过AMF的slice BW change接口通知，指定对应的slice ID，可选的还可以包含对应的TA list，以及对应的PLMN ID。
以一个网络切片为例，当SCF首次确定该网络切片的带宽控制策略参数，或者对该网络切片的带宽控制策略参数调整之后，SCF向PCF或AMF发送用于指示网络切片的带宽控制策略参数的通知消息。
S703，AMF向RAN发送网络切片的带宽控制策略参数。
AMF接收到PCF或者SCF发送的消息时，根据该信息中携带的slice ID，可选的还可以包含对应的TA list，确定对应的RAN，然后向该RAN发送网络切片的带宽控制策略参数。
可选地，通过AMF配置更新(AMF configuration update)消息向该RAN发送网络切片的带宽控制策略参数。
可选地，通过over load消息向该RAN发送网络切片的带宽控制策略参数。
具体地，AMF配置更新消息或over load消息中可以携带slice ID(这里是S-NSSAI)可用的总带宽，也可以是相对值，如slice的带宽可以成为当前带宽的百分之多少(120％是增加带宽用量，80％是减少带宽用量)
RAN根据接收到的网络切片的带宽控制策略参数，为接入该网络切片的终端设备分配带宽。
RAN在为接入该网络切片的终端设备分配带宽时，确保对应该网络切片下的所有终端设备所分配的带宽的总和不超过该网络分片的总带宽。
总带宽也可以是slice之间的相对比例值，如表示为在整个基站的带宽占比。
本申请实施例通过设置网络切片的带宽控制策略参数，然后按照网络切片的带宽控制策略参数处理网络切片，可以实现网络切片的差异化处理，有利于提高网络切片的服务质量。
上文描述了本申请实施例提供的通信方法，下文将描述本申请实施例提供的通信设备。
图8为本申请实施例提供的通信装置800的示意性框图。该通信装置800包括如下单元。
处理单元810，用于获取网络切片的策略参数，该网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；
发送单元820，用于向该网络切片对应的接入网设备发送该网络切片的策略参数，以便该接入网设备按照该网络切片的策略参数确定该网络切片的相关策略。
可选地，在一些实施例中，该处理单元810用于，将系统中所有网络切片划分为至少两个接入类别，并按照该至少两个接入类别设置接入类别优先级；获取该网络切片的策略参数，该网络切片的策略参数为该网络切片所属的接入类别所对应的接入类别优先级。
可选地，在一些实施例中，发送单元820还用于，向终端设备通知该网络切片的接入类别，该终端设备为与该网络切片建立签约关系的终端设备。
可选地，在一些实施例中，该网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
可选地，在一些实施例中，该发送单元820用于，通过接入和移动性管理功能AMF向该接入网设备发送该网络切片的策略参数。
可选地，在一些实施例中，该发送单元820用于，当该网络切片的策略参数发生变更时，向该接入网设备通知该网络切片变更后的策略参数。
可选地，在一些实施例中，该处理单元810用于，通过网络数据分析功能NWDAF获取该网络切片的策略参数。
可选地，在一些实施例中，该发送单元820用于，向该接入网设备发送通知消息，该通知消息中携带该网络切片的策略参数以及该网络切片的切片标识。
可选地，该通信装置800还包括接收单元830，例如用于从NWDAF接收分析结果。
应理解，根据本申请实施例提供的通信装置800可对应于上述方法实施例中的核心网设备，并且通信装置800中的各个单元的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
图9为本申请实施例提供的另一通信装置900的示意性框图。该通信装置900包括处 理器910、存储器920与收发器930，存储器920用于存储指令，处理器910用于读取存储器920存储的指令，对存储器920中存储的指令的执行使得处理器910用于执行上文实施例中处理单元810执行的动作，使得收发器930用于执行上文实施例中发送单元820执行的动作。
图10为本申请实施例提供的另一通信装置1000的示意性框图。该通信装置1000包括如下单元。
接收单元1010，用于从核心网设备接收网络切片的策略参数，该网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；
处理单元1020，用于按照该网络切片的策略参数确定该网络切片的相关策略。
可选地，在一些实施例中，该网络切片的策略参数为接入控制策略参数；
处理单元1020用于，按照该网络切片的接入控制策略参数，确定该网络切片的接入控制参数。
可选地，在一些实施例中，该网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
可选地，在一些实施例中，处理单元1020用于，按照该网络切片的接入控制策略参数，生成该网络切片的接入控制参数；
还包括：发送单元1030，用于向终端设备发送广播消息，该广播消息中携带该网络切片的接入控制参数，该终端设备与该网络切片建立有签约关系。
可选地，在一些实施例中，该网络切片的策略参数为调度控制策略参数；处理单元1020用于，按照该网络切片的调度控制策略参数，确定为接入该网络切片的终端设备调度资源的策略。
可选地，在一些实施例中，该网络切片的策略参数与带宽控制策略参数；处理单元1020用于，按照该网络切片的带宽控制策略参，确定为接入该网络切片的终端设备分配带宽的策略。
可选地，在一些实施例中，接收单元1010用于，通过接入和移动性管理功能AMF从该核心网设备接收该网络切片的策略参数。
可选地，在一些实施例中，接收单元1010用于，当该网络切片的策略参数发生变更时，从该核心网设备接收该网络切片变更后的策略参数。
可选地，在一些实施例中，接收单元1010用于，从该核心网设备接收通知消息，该通知消息中携带该网络切片的策略参数以及该网络切片的切片标识。
应理解，根据本申请实施例提供的通信装置1000可对应于上述方法实施例中的接入网设备，并且通信装置1000中的各个单元的上述和其它操作和/或功能分别为了实现图2至图7中的各个方法的相应流程，为了简洁，在此不再赘述。
图11为本申请实施例提供的另一通信装置1100的示意性框图。该通信装置1100包括处理器1110、存储器1120与收发器1130，存储器1120用于存储指令，处理器1110用于读取存储器1120存储的指令，对存储器1120中存储的指令的执行使得处理器1110用于执行上文实施例中处理单元1020执行的动作，使得收发器1130用于执行上文实施例中接收单元1010和发送单元1030执行的动作。
本申请实施例还提供一种通信装置1200，该通信装置1200可以是终端设备也可以是芯片。该通信装置1200可以用于执行上述方法实施例中由终端设备所执行的动作。
当该通信装置1200为终端设备时，图12示出了一种简化的终端设备的结构示意图。便于理解和图示方便，图12中，终端设备以手机作为例子。如图12所示，终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对终端设备进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图12中仅示出了一个存储器和处理器。在实际的终端设备产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为终端设备的收发单元，将具有处理功能的处理器视为终端设备的处理单元。如图12所示，终端设备包括收发单元1201和处理单元1202。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元1201中用于实现接收功能的器件视为接收单元，将收发单元1201中用于实现发送功能的器件视为发送单元，即收发单元1201包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
例如，在一种实现方式中，收发单元1201用于执行图3中的步骤302中终端设备侧的接收操作，和/或收发单元1201还用于执行本申请实施例中终端设备侧的其他收发步骤。
再例如，在另一种实现方式中，收发单元1201用于执行图4中S404中终端设备侧的接收操作，和/或收发单元1202还用于执行本申请实施例中终端设备侧的其他收发步骤。
当该通信装置1200为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
本申请实施例还提供一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被计算机执行时使得所述计算机实现上文方法实施例中核心网设备侧的方法，或接入网设备侧的方法，或终端设备侧的方法。
本申请实施例还提供一种包含指令的计算机程序产品，该指令被计算机执行时使得所述计算机实现上文方法实施例中核心网设备侧的方法，或接入网设备侧的方法，或终端设 备侧的方法。
上述提供的任一种通信装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例，此处不再赘述。
应理解，本发明实施例中提及的处理器可以是中央处理单元(Central Processing Unit，CPU)，还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本发明实施例中提及的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。
需要说明的是，当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时，存储器(存储模块)集成在处理器中。
应注意，本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
上述仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (36)

  1. 一种通信方法，其特征在于，包括：
    核心网设备获取网络切片的策略参数，所述网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；
    所述核心网设备向所述网络切片对应的接入网设备发送所述网络切片的策略参数，以便所述接入网设备按照所述网络切片的策略参数确定所述网络切片的相关策略。
  2. 根据权利要求1所述的方法，其特征在于，所述网络切片的策略参数为接入类别优先级；
    所述核心网设备获取所述网络切片的策略参数，包括：
    所述核心网设备将系统中所有网络切片划分为至少两个接入类别，并按照所述至少两个接入类别设置接入类别优先级；
    所述核心网设备获取所述网络切片的策略参数，所述网络切片的策略参数为所述网络切片所属的接入类别所对应的接入类别优先级。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    所述核心网设备向终端设备通知所述网络切片的接入类别，所述终端设备为与所述网络切片建立签约关系的终端设备。
  4. 根据权利要求1所述的方法，其特征在于，所述网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述核心网设备向所述网络切片对应的接入网设备发送所述网络切片的策略参数，包括：
    所述核心网设备通过接入和移动性管理功能AMF向所述接入网设备发送所述网络切片的策略参数。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述核心网设备向所述网络切片对应的接入网设备发送所述网络切片的策略参数，包括：
    当所述网络切片的策略参数发生变更时，所述核心网设备向所述接入网设备通知所述网络切片变更后的策略参数。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述核心网设备获取网络切片的策略参数，包括：
    所述核心网设备通过网络数据分析功能NWDAF获取所述网络切片的策略参数。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述核心网设备向所述网络切片对应的接入网设备发送所述网络切片的策略参数，包括：
    所述核心网设备向所述接入网设备发送通知消息，所述通知消息中携带所述网络切片的策略参数以及所述网络切片的切片标识。
  9. 一种通信方法，其特征在于，包括：
    接入网设备从核心网设备接收网络切片的策略参数，所述网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；
    所述接入网设备按照所述网络切片的策略参数确定所述网络切片的相关策略。
  10. 根据权利要求9所述的方法，其特征在于，所述网络切片的策略参数为接入控制策略参数；
    其中，所述接入网设备按照所述网络切片的策略参数确定所述网络切片的相关策略，包括：
    所述接入网设备按照所述网络切片的接入控制策略参数，确定所述网络切片的接入控制参数。
  11. 根据权利要求9所述的方法，其特征在于，所述网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
  12. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    所述接入网设备按照所述网络切片的接入控制策略参数，生成所述网络切片的接入控制参数；
    所述接入网设备向终端设备发送广播消息，所述广播消息中携带所述网络切片的接入控制参数，所述终端设备与所述网络切片建立有签约关系。
  13. 根据权利要求9所述的方法，其特征在于，所述网络切片的策略参数为调度控制策略参数；
    其中，所述接入网设备按照所述网络切片的策略参数确定所述网络切片的相关策略，包括：
    所述接入网设备按照所述网络切片的调度控制策略参数，确定为接入所述网络切片的终端设备调度资源的策略。
  14. 根据权利要求9所述的方法，其特征在于，所述网络切片的策略参数与带宽控制策略参数；
    其中，所述接入网设备按照所述网络切片的策略参数确定所述网络切片的相关策略，包括：
    所述接入网设备按照所述网络切片的带宽控制策略参，确定为接入所述网络切片的终端设备分配带宽的策略。
  15. 根据权利要求9至14中任一项所述的方法，其特征在于，所述接入网设备从核心网设备接收网络切片的策略参数，包括：
    所述接入网设备通过接入和移动性管理功能AMF从所述核心网设备接收所述网络切片的策略参数。
  16. 根据权利要求9至15中任一项所述的方法，其特征在于，所述接入网设备从核心网设备接收网络切片的策略参数，包括：
    当所述网络切片的策略参数发生变更时，所述接入网设备从所述核心网设备接收所述网络切片变更后的策略参数。
  17. 根据权利要求9至16中任一项所述的方法，其特征在于，所述接入网设备从核心网设备接收网络切片的策略参数，包括：
    所述接入网设备从所述核心网设备接收通知消息，所述通知消息中携带所述网络切片的策略参数以及所述网络切片的切片标识。
  18. 一种通信装置，其特征在于，包括存储器和处理器，所述存储器用于存储指令， 所述处理器用于执行所述存储器存储的指令，并且对所述存储器中存储的指令的执行使得所述处理器用于：
    获取网络切片的策略参数，所述网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；
    向所述网络切片对应的接入网设备发送所述网络切片的策略参数，以便所述接入网设备按照所述网络切片的策略参数确定所述网络切片的相关策略。
  19. 根据权利要求18所述的装置，其特征在于，所述网络切片的策略参数为接入类别优先级；
    所述处理器具体用于：将系统中所有网络切片划分为至少两个接入类别，并按照所述至少两个接入类别设置接入类别优先级；获取所述网络切片的策略参数，所述网络切片的策略参数为所述网络切片所属的接入类别所对应的接入类别优先级。
  20. 根据权利要求19所述的装置，其特征在于，所述处理器还用于，向终端设备通知所述网络切片的接入类别，所述终端设备为与所述网络切片建立签约关系的终端设备。
  21. 根据权利要求18所述的装置，其特征在于，所述网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
  22. 根据权利要求18至21中任一项所述的装置，其特征在于，所述处理器用于，通过接入和移动性管理功能AMF向所述接入网设备发送所述网络切片的策略参数。
  23. 根据权利要求18至22中任一项所述的装置，其特征在于，所述处理器用于，当所述网络切片的策略参数发生变更时，向所述接入网设备通知所述网络切片变更后的策略参数。
  24. 根据权利要求18至23中任一项所述的装置，其特征在于，所述处理器用于，通过网络数据分析功能NWDAF获取所述网络切片的策略参数。
  25. 根据权利要求18至24中任一项所述的装置，其特征在于，所述处理器用于，向所述接入网设备发送通知消息，所述通知消息中携带所述网络切片的策略参数以及所述网络切片的切片标识。
  26. 一种通信装置，其特征在于，包括存储器和处理器，所述存储器用于存储指令，所述处理器用于执行所述存储器存储的指令，并且对所述存储器中存储的指令的执行使得所述处理器用于：
    从核心网设备接收网络切片的策略参数，所述网络切片的策略参数包括如下参数中至少一种：接入控制策略参数、调度控制策略参数和带宽控制策略参数；
    按照所述网络切片的策略参数确定所述网络切片的相关策略。
  27. 根据权利要求26所述的装置，其特征在于，所述网络切片的策略参数为接入控制策略参数；
    所述处理器具体用于，按照所述网络切片的接入控制策略参数，确定所述网络切片的接入控制参数。
  28. 根据权利要求26所述的装置，其特征在于，所述网络切片的策略参数为允许接入控制参数或禁止接入控制参数。
  29. 根据权利要求27所述的装置，其特征在于，所述处理器还用于：
    按照所述网络切片的接入控制策略参数，生成所述网络切片的接入控制参数；
    向终端设备发送广播消息，所述广播消息中携带所述网络切片的接入控制参数，所述终端设备与所述网络切片建立有签约关系。
  30. 根据权利要求26所述的装置，其特征在于，所述网络切片的策略参数为调度控制策略参数；
    所述处理器具体用于，按照所述网络切片的调度控制策略参数，确定为接入所述网络切片的终端设备调度资源的策略。
  31. 根据权利要求26所述的装置，其特征在于，所述网络切片的策略参数与带宽控制策略参数；
    所述处理器具体用于，按照所述网络切片的带宽控制策略参，确定为接入所述网络切片的终端设备分配带宽的策略。
  32. 根据权利要求26至31中任一项所述的装置，其特征在于，所述处理器用于，通过接入和移动性管理功能AMF从所述核心网设备接收所述网络切片的策略参数。
  33. 根据权利要求26至32中任一项所述的装置，其特征在于，所述处理器用于，当所述网络切片的策略参数发生变更时，所述接入网设备从所述核心网设备接收所述网络切片变更后的策略参数。
  34. 根据权利要求26至33中任一项所述的装置，其特征在于，所述处理器用于，从所述核心网设备接收通知消息，所述通知消息中携带所述网络切片的策略参数以及所述网络切片的切片标识。
  35. 一种计算机存储介质，其特征在于，其上存储有计算机程序，所述计算机程序被计算机执行时使得，所述计算机执行如权利要求1至8中任一项所述的方法。
  36. 一种计算机存储介质，其特征在于，其上存储有计算机程序，所述计算机程序被计算机执行时使得，所述计算机执行如权利要求9至17中任一项所述的方法。
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