WO2021083243A1 - 一种网络切片实例配置方法和装置 - Google Patents

一种网络切片实例配置方法和装置 Download PDF

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Publication number
WO2021083243A1
WO2021083243A1 PCT/CN2020/124555 CN2020124555W WO2021083243A1 WO 2021083243 A1 WO2021083243 A1 WO 2021083243A1 CN 2020124555 W CN2020124555 W CN 2020124555W WO 2021083243 A1 WO2021083243 A1 WO 2021083243A1
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network
module
network slice
slice instance
configuration
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PCT/CN2020/124555
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English (en)
French (fr)
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刘合伦
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements
    • H04L41/0893Assignment of logical groups to network elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information

Definitions

  • the embodiments of the present application relate to, but are not limited to, the field of communication technology, and specifically, relate to, but are not limited to, a network slice instance configuration method and device.
  • the concept of network slicing is introduced.
  • PDU Protocol Data Unit
  • DNN Digital Data Network
  • Single Network Slice Selection Assistance Information Single Network Slice Selection Assistance Information
  • NWDAF Network Data Analysis Function
  • the solutions provided by the current standard level have the following two problems: when the NSSF module is not deployed in the network, it is impossible to implement slice selection based on the real-time load of the Network Slice Instance (NSI).
  • NSF Network Slice Instance
  • AMF access and mobility management function
  • the embodiment of the application provides a method for configuring a network slice instance.
  • the method for configuring a network slice instance includes: sending network configuration request information to a network data analysis module; receiving network configuration information sent by the network data analysis module; The configuration information determines the load status of the network slice instance, and determines the target network slice instance accessed by the access terminal according to the load status.
  • the embodiment of the present application also provides a method for sending the load status of a network slice instance.
  • the method for sending the load status of a network slice instance includes: monitoring and analyzing the load status of all network slice instances in the network; when the network slice instance configuration module is received When the network configuration request information is sent, the network configuration information is returned to the network slice instance configuration module according to the network configuration request information, and the network configuration information includes at least the load status of the corresponding network slice instance.
  • An embodiment of the present application also provides a network slice instance configuration device, including: a sending module, a receiving module, and a configuration module; the sending module is used to send network configuration request information to the network data analysis module; the receiving module is used to receive The network configuration information sent by the network data analysis module includes at least the load status of the network slice instance; the configuration module is used to configure the target network slice instance to the access terminal according to the load condition.
  • the embodiment of the present application also provides a network slice instance monitoring device, including: a sending module, a receiving module, and a load monitoring module; the load monitoring module is used to monitor and analyze the load status of all network slice instances in the network; the receiving The module is used to receive network configuration request information sent by the network slice instance configuration module; the sending module is used to send network configuration information to the network slice instance configuration module, and the network configuration information includes at least the corresponding information in the network configuration request information.
  • the load status of the network slicing instance including: a sending module, a receiving module, and a load monitoring module; the load monitoring module is used to monitor and analyze the load status of all network slice instances in the network; the receiving The module is used to receive network configuration request information sent by the network slice instance configuration module; the sending module is used to send network configuration information to the network slice instance configuration module, and the network configuration information includes at least the corresponding information in the network configuration request information.
  • the load status of the network slicing instance including: a sending module, a receiving module, and
  • An embodiment of the present application also provides a device, including: a processor, a memory, a communication unit, and a communication bus; the communication bus is used to implement a wireless communication connection between the processor, the communication unit, and the memory; The processor is configured to execute one or more programs stored in the memory to implement the steps of the network slice instance configuration method proposed in the embodiment of the present application.
  • the embodiment of the present application also provides a computer storage medium.
  • the computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the embodiments of the present application.
  • the steps of the proposed network slice instance configuration method are described in detail below.
  • FIG. 1 is a complete flowchart of a method for configuring a network slicing instance provided by Embodiment 1 of the application;
  • FIG. 2 is a flowchart of AMF actively acquiring and subscribing to slice load data from NWDAF according to the third embodiment of the application;
  • FIG. 3 is a flow chart of referring to the load status of the slice instance when NSSF is not deployed in the network provided in the fourth embodiment of the application, and when the AMF decides the slice result in the Registration process;
  • FIG. 4 is a flowchart in which NSSF is not deployed in the network provided by the fifth embodiment of the application, and the AMF refers to the load status of the slice instance when deciding the slice result in the PDU process;
  • FIG. 5 is a flowchart of the AMF receiving the notification that the slice load of the NWDAF exceeds the threshold and releasing the PDU on the slice instance according to the sixth embodiment of the application;
  • FIG. 6 is a flowchart of notifying the terminal when the user Allowed NSSAI and Reject NSSAI change due to the change in the load of the slice instance provided in the seventh embodiment of the application;
  • FIG. 7 is a flowchart of the NRF actively acquiring and subscribing to slice load data from NWDAF according to the eighth embodiment of the application;
  • FIG. 8 is a flowchart of referring to slice instance load data when NRF selects SMF in the PDU establishment process provided in the ninth embodiment of the application;
  • FIG. 9 is a schematic structural diagram of an apparatus for configuring a network slicing instance provided by the tenth embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a network slicing instance monitoring device provided in the tenth embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a device provided in Embodiment 11 of this application.
  • the network slice instance configuration method and device provided by the embodiments of the present application mainly solve the technical problem that the current configuration of the network slice instance is prone to uneven load of the network slice instance and the problem of high system load in the configuration process.
  • the network slice configuration method includes: The analysis module sends network configuration request information; receives the network configuration information sent by the network data analysis module; determines the load status of the network slice instance according to the network configuration information, and determines the target network slice instance accessed by the access terminal according to the load status.
  • FIG. 1 is a complete flowchart of a network slicing instance configuration method provided in this embodiment.
  • the access terminal needs to access the network, it sends a network access request to the network configuration terminal, in Figure 1, the access and mobility management function AMF module, or the network repository function (Network Repository Function, NRF) module, which needs to be explained
  • NRF Network Repository Function
  • the access and mobility management function AMF module and the network storage library function NRF module are two interconnected modules, and the access terminal usually only communicates with the access and mobility management function AMF module, so when When the network configuration end is the network storage library function NRF module, it needs to be forwarded through the access and mobility management function AMF module; when the network configuration end receives the access request of the access terminal, it sends it to the network information analysis and processing end, as shown in Figure 1.
  • the network data analysis function NWDAF module is mainly used as the entire network monitoring and analysis function.
  • the network information analysis processing terminal receives the network configuration information request information, it returns the requested network configuration information to the network configuration terminal; the network configuration terminal performs necessary processing from the network configuration information,
  • the load status of the network slice instance is extracted, and the configuration of the network slice instance is determined by the extracted load status, and sent to the access terminal to access the corresponding target network slice instance.
  • the network configuration can also send the load status directly to the access terminal, allowing the access terminal to determine the target network slice instance for access.
  • the network configuration information includes: feedback network configuration information returned according to the network configuration request information, and/or active network configuration information actively sent by the network data analysis function NWDAF module.
  • the network data analysis function NWDAF module does not only issue network configuration information when it receives a request.
  • the network data analysis function NWDAF module will also actively issue the active network Configure information to better control and adjust the network status. Therefore, the received network configuration information may have three situations, one is the feedback network configuration information returned according to the network configuration request information, the other is the active network configuration information actively sent by the network data analysis function NWDAF module, and there may be feedback Both network configuration information and active network configuration information exist.
  • determining the load status of the network slice instance according to the network configuration information includes: directly obtaining the load status of the network slice instance from the network configuration information, and/or obtaining the load data of the network slice instance from the network configuration information, Analyze the load data to determine the load status of the network slice instance; the network slice instance includes all network slice instances or some network slice instances. Considering that there may be differences in the size of the load that the network slicing instance can bear in some places, the step of determining the load status can be carried out at the network configuration end. Only the corresponding load data is received in the received network configuration information, and the network configuration end gets it. After the load data, the specific load status is determined according to its own situation. Of course, the load status of the network slice instance can also be directly obtained in the network data analysis function NWDAF module.
  • the access and mobility management function AMF module determines the network slice instance from the network configuration information Load status: When a network access request from an access terminal is received, the load status is sent to the access terminal to determine the target network slice instance that the access terminal accesses.
  • an instance of the access terminal accessing the target network slice includes: accessing through a network registration (Registration) process, or accessing through a protocol data unit PDU establishment process.
  • the access and mobility management function AMF module receives the registration request of the access terminal , And send a network slice selection auxiliary information request to the unified data management module UDM (Unified Data Management, UDM) subscribed by the access terminal;
  • UDM Unified Data Management
  • the corresponding single network slice selection auxiliary information S-NSSAI When the load status of the single network slice selection auxiliary information S-NSSAI exceeds the threshold, the corresponding single network slice selection auxiliary information S-NSSAI is placed in the rejected network slice selection auxiliary information (Rejected NSSAI); when a single network slice is selected When the load status of the auxiliary information S-NSSAI does not exceed the threshold, the corresponding single network slice selection auxiliary information S-NSSAI is placed in the allowed network slice selection auxiliary information (Allowed NSSAI);
  • the threshold value includes the lowest threshold value and the highest threshold value. The addition of determining whether the load status exceeds the threshold value can promptly switch the network slice instance whose load exceeds the threshold value to In suitable network slicing instances, the overload of the network slicing instance can prevent the network slicing instance from failing, and the use efficiency of the network slicing instance is improved.
  • the access and mobility management function AMF module receives the protocol data unit PDU establishment request of the access terminal, and the protocol data unit PDU establishment request includes the corresponding single network slice selection auxiliary information S-NSSAI;
  • SMS Session Management Function
  • the network configuration end is the network storage library function NRF module receiving the network configuration information sent by the network data analysis function NWDAF module;
  • the network storage library function NRF module determines the load status of the network slice instance from the network configuration information
  • the network storage library function NRF module receives the discovery session management function module request of the access and mobility management function AMF module.
  • the discovery session management function module request includes at least one of local configuration information and single network slice selection auxiliary information S-NSSAI;
  • the AMF module and the access terminal establish a protocol data unit PDU.
  • a network slice instance configuration method provided by an embodiment of the application includes: sending network configuration request information to a network data analysis function module; receiving network configuration information sent by the network data analysis function module; and determining the load of the network slice instance according to the network configuration information Status, and determine the target network slice instance that the access terminal accesses based on the load status.
  • the network slice instance configuration side actively obtains network configuration information from the network data analysis function module, and configures the network slice instance accessed by the access terminal through the load status of the network slice instance in the network configuration information, avoiding the access terminal
  • the network slice instance with a relatively large access load makes the load of the network slice instance more even; at the same time, since the load status of multiple network slice instances can be obtained, the configuration of the network slice instance is directly performed by the network slice instance configuration side. Configuration reduces the load of the network slicing instance configuration system.
  • This embodiment provides a method for sending the load status of a network slice instance.
  • the method for sending the load status of a network slice instance includes: monitoring and analyzing the load status of all network slice instances in the network; when the network slice instance configuration module sends the network slice
  • the network configuration information is returned to the network slice instance configuration module according to the network configuration request information, and the network configuration information includes at least the load status of the corresponding network slice instance.
  • the method for sending the load status of a network slice instance in this embodiment corresponds to the action at the end of the NWDAF module of the network data analysis function in FIG. 1.
  • the network slicing instance configuration module includes: access and movement management function AMF module and network storage library function NRF module.
  • the network configuration request information includes: real-time status request information and subscription status request information; when the real-time status request information is received, the network configuration information needs to be immediately returned to the network slice instance configuration module;
  • the network configuration information is returned to the network slice instance configuration module according to the built-in time period or trigger condition of the subscription status request information.
  • the method for sending the load status of the network slice instance further includes: when it is detected that the load status of the network slice instance exceeds the threshold, sending an active message to the network slice instance configuration module corresponding to the network slice instance that exceeds the threshold. Network configuration information.
  • This embodiment provides a method for sending the load status of a network slice instance, including: monitoring and analyzing the load status of all network slice instances in the network; when receiving network configuration request information sent by the network slice instance configuration module, according to the network configuration
  • the request information returns network configuration information to the network slice instance configuration module, and the network configuration information includes at least the load status of the corresponding network slice instance.
  • the network configuration information including the load status of the network slice instance is sent to the network slice instance configuration module to make the network
  • the slice instance configuration module uses the load status of the network slice instance in the obtained network configuration information to reasonably configure the network slice instance, so that the load status of the configured network slice instance is more uniform.
  • multiple network slice instances will be obtained at one time.
  • the load status of the network slice can be configured directly when configuring the network slice instance, thereby reducing the load of the entire system.
  • the network slice instance configuration method provided in this embodiment is a specific embodiment in the case where the AMF module actively obtains and subscribes to the slice load data from the NWDAF module.
  • FIG. 2 is a flowchart of the AMF module actively acquiring and subscribing to slice load data from the NWDAF module.
  • Figure 2 includes: the S01.AMF module sends a data analysis request to the NWDAF module, requesting load data of the slice instance.
  • the AMF module can request the load data of all slice instances in the current network from the NWDAF module, or it can also consider requesting the load data of only some slice instances.
  • the AMF module receives the data analysis result returned by the NWDAF module, which includes the slice instance and its corresponding load status.
  • the S03.AMF module saves the slice instance and its load status returned by the NWDAF module. Subsequent users can refer to these slice load data when selecting slices during the Registration process or selecting slice instances during the PDU establishment process.
  • the AMF module can also actively subscribe to the NWDAF module for slice load data, which can be all slice instances or some request instances.
  • the AMF module receives the subscription response returned by the NWDAF module.
  • the subscription response can protect the load data of each slice at the current moment.
  • the S06.AMF module can receive the subscription notification message sent by the NWDAF module at any time, which contains slice load data.
  • the NWDAF module can notify the AMF module periodically, or notify the AMF module when the load of the slice instance exceeds a certain threshold.
  • the AMF module can keep the latest load data.
  • some subsequent behaviors can be triggered and affect user behavior. See Example 7 and Example 8.
  • the network slice instance configuration method provided in this embodiment is a specific embodiment in the case that the AMF module selects reference slice instance load data for user slices in the Registration process when the NSSF module is not deployed.
  • Figure 3 is a flow chart showing that the NSSF module is not deployed in the network, and the AMF module refers to the load status of the slice instance when deciding the slice result in the Registration process.
  • the UE initiates a registration request to the AMF module.
  • the AMF module obtains the NSSAI information of the user's subscription from the UDM module.
  • the AMF module receives the subscription NSSAI information returned by the UDM module.
  • the AMF module For the case where the NSSF module is not deployed, or when the AMF module relies on its own configuration of the user slice selection result, refer to the slice instance load situation. If the NSI load of the slice instance corresponding to the S-NSSAI is too high and exceeds a certain threshold, and no NSI instance can serve the S-NSSAI, the AMF module will put the S-NSSAI in the Rejected NSSAI and cannot be placed in the Allowed NSSAI .
  • the AMF module sends the Allowed NSSAI and Rejected NSSAI to the UE (terminal side) in the Registration Accept message.
  • the form is delivered to the UE to prevent the UE from using the S-NSSAI when the subsequent PDU is established, resulting in failure to select a suitable NSI instance.
  • the network slice instance configuration method provided in this embodiment is a specific embodiment when the AMF module selects the reference slice instance load data for the user slice in the PDU establishment process when the NSSF module is not deployed.
  • Fig. 4 is a flow chart of the NSSF module not deployed in the network, and the AMF module refers to the load status of the slice instance when deciding the slice result in the PDU process.
  • the UE initiates a PDU establishment request to the AMF module, which carries the corresponding S-NSSAI.
  • the S02.AMF module determines the NSI slice instance corresponding to the user according to local configuration, S-NSSAI, DNN and other factors, it considers the load factor corresponding to the slice instance. Priority is given to slice instances with low load and below the set threshold.
  • the S03.AMF module finds the SMF module from the NRF module, in addition to factors such as S-NSSAI and DNN, it must also carry the NSI selected in the previous step.
  • the S04.NRF module selects a suitable SMF module according to the found conditions, and returns it to the AMF module.
  • Embodiment 6 is a diagrammatic representation of Embodiment 6
  • the network slice instance configuration method provided in this embodiment is a specific embodiment when the AMF module receives a notification that the slice load of the NWDAF module exceeds the threshold and releases the PDU on the slice instance.
  • FIG. 5 is a flowchart of the AMF module receiving the notification that the slice load of the NWDAF module exceeds the threshold and releasing the PDU on the slice instance.
  • the NWDAF module detects that the load of a slice instance exceeds the set threshold, and then notifies the AMF module that subscribes to the slice load.
  • the AMF module receives the slice instance load data and saves the slice load data.
  • the AMF module receives the slice instance load data and saves the slice load data. If the load of the slice instance is too high, the AMF module checks the PDUs belonging to the slice and informs the SMF module to release the PDUs on the slice instance.
  • the S03.AMF module receives the response from the SMF module.
  • S04.SMF module triggers PDU release, see TS23502 protocol
  • the AMF module triggers other PDUs on the slice until the slice load decreases.
  • the NWDAF module detects that the slice load is lower than the threshold, and notifies the AMF module that subscribes to the slice load data.
  • the slice load is lower than the threshold, and the AMF module stops the release of the PDU.
  • the network slice instance configuration method provided in this embodiment is a specific embodiment in the case where the user Allowed NSSAI and Reject NSSAI change due to the change in the load of the slice instance, the terminal is notified.
  • FIG. 6 is a flow chart of notifying the terminal when the user Allowed NSSAI and Reject NSSAI change due to a change in the load of a slice instance.
  • the NWDAF module detects that the load of a slice instance is lower than or exceeds the set threshold, and then notifies the AMF module that subscribes to the slice load.
  • the AMF module receives the slice instance load data and saves the slice load data. If the load of the slice instance is lower or higher than the set threshold, the AMF module detects the change in the load status of the slice instance, which affects the change of the user's Allowed NSSAI or Reject NSSAI. The AMF module sends a configuration update message to the UE to update the NSSAI information.
  • the UE replies with a configuration update response.
  • the AMF module If the AMF module considers that the user's Allowed NSSAI or Reject NSSAI change requires the terminal to re-register, it triggers the UE Context Release Command message to trigger the terminal to re-initiate Registration.
  • the UE replies to the UE Context Release Complete message.
  • the terminal initiates a registration process.
  • Embodiment 8 is a diagrammatic representation of Embodiment 8
  • the network slice instance configuration method provided in this embodiment is a specific embodiment in the case that the NRF module actively obtains and subscribes to the slice load data from the NWDAF module.
  • FIG. 7 is a flowchart of the NRF module actively acquiring and subscribing to slice load data from the NWDAF module.
  • the NRF module sends a NWDAF module data analysis request to the NWDAF module, requesting load data of the slice instance.
  • the NRF module can request the load data of all slice instances in the current network from the NWDAF module, or it can also consider requesting the load data of only some slice instances.
  • the NRF module receives the data analysis result returned by the NWDAF module, which includes the slice instance and its corresponding load status.
  • the NRF module saves the slice instance and its load status returned by the NWDAF module. Subsequent users can refer to these slice load data when selecting the SMF module during the PDU establishment process.
  • the NRF module can also actively subscribe to the NWDAF module for slice load data, which can be all slice instances or some request instances.
  • the NRF module receives the subscription response returned by the NWDAF module.
  • the subscription response can protect the load data of each slice at the current moment.
  • the S06.NRF module can receive the subscription notification message sent by the NWDAF module at any time, which contains slice load data.
  • the NWDAF module can notify the NRF module periodically, or it can notify the NRF module when the load of the slice instance exceeds a certain threshold.
  • the NRF module can keep the latest load data.
  • the network slice instance configuration method provided in this embodiment is that in the PDU establishment process, when the NRF module selects the SMF module, refer to the specific embodiment in the case of slice instance load data.
  • Figure 8 is a flow chart of the load data of the slice instance when the NRF module selects the SMF module in the PDU establishment process.
  • the NRF module has obtained the slice instance load data from the NWDAF module.
  • the NRF module filters the SMF module based on the slice instance load.
  • the UE initiates a PDU establishment request to the AMF module.
  • the S02.AMF module initiates a discovery request to the NRF module to facilitate the discovery of the SMF module.
  • the S03.SMF module In addition to filtering the appropriate SMF module based on the parameters in the discovery request, the S03.SMF module also refers to the load and traffic of the slice instance where the SMF module is located. If the load is too high and exceeds a certain threshold, the SMF module corresponding to the slice instance should be removed.
  • the S04.NRF module returns the discovery result to the AMF module.
  • the device includes: a sending module 901, a receiving module 902, and a configuration module 903; a sending module 901 is used to send network configuration request information to the network data analysis module; the receiving module 902 is used to receive network configuration information sent by the network data analysis function module, the network configuration information includes at least the load status of the network slice instance; the configuration module 903 is used to load according to the load The status configures the target network slice instance to the access terminal.
  • a sending module 901 is used to send network configuration request information to the network data analysis module
  • the receiving module 902 is used to receive network configuration information sent by the network data analysis function module, the network configuration information includes at least the load status of the network slice instance
  • the configuration module 903 is used to load according to the load The status configures the target network slice instance to the access terminal.
  • the network slicing instance monitoring device includes: a sending module 1001 and a receiving module 1002 and load monitoring module 1003; load monitoring module 1003 is used to monitor and analyze the load status of all network slicing instances in the network; receiving module 1002 is used to receive network configuration request information sent by the network slicing instance configuration module; sending module 1001 is used to Send network configuration information to the network slice instance configuration module, where the network configuration information at least includes the load status of the corresponding network slice instance in the network configuration request information.
  • the steps and specific processes implemented by each module in the device reference may be made to the processes shown in the foregoing embodiments, which will not be repeated here.
  • This embodiment provides a network slicing instance configuration device and a network slicing instance monitoring device.
  • the network slicing instance monitoring device is used to monitor and analyze the load status of the network slicing instance, and the network slicing instance configuration is output from the network slicing instance monitoring device.
  • Obtain the load status of the network slice instance and configure the network slice instance according to the load status of the network slice instance, avoiding the access terminal access to the network slice instance with a large load, making the load of the network slice instance more even;
  • the load status of multiple network slice instances can be obtained, and the configuration is directly performed by the network slice instance configuration side when the network slice instance configuration is performed, which reduces the load of the network slice instance configuration system.
  • Embodiment 11 is a diagrammatic representation of Embodiment 11:
  • the device includes: a processor 211, a memory 212, a communication unit 213, and a communication bus 214; the communication bus 214 is used to implement the processor 211, the communication unit 213, and the memory 212.
  • the processor 211 is configured to execute one or more programs stored in the memory 212 to implement the steps of the network slice instance configuration method provided in the embodiments of the present application.
  • This embodiment also provides a computer-readable storage medium, which is included in any method or technology for storing information (such as computer-readable instructions, data structures, computer program modules, or other data). Volatile or non-volatile, removable or non-removable media.
  • Computer-readable storage media include but are not limited to Random Access Memory (RAM), Read-Only Memory (Read-Only Memory, ROM for short), Electrically Erasable Programmable Read Only memory, EEPROM for short), flash memory or other memory technologies, Compact Disc Read-Only Memory (CD-ROM for short), Digital Versatile Disc (DVD for short) or other optical disk storage, magnetic boxes, Tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and that can be accessed by a computer.
  • RAM Random Access Memory
  • Read-Only Memory Read-Only Memory
  • EEPROM Electrically Erasable Programmable Read Only memory
  • flash memory or other memory technologies
  • CD-ROM Compact Disc Read-Only Memory
  • DVD Digital Versa
  • the computer-readable storage medium in this embodiment can be used to store one or more computer programs, and the stored one or more computer programs can be executed by a processor, so as to implement the network slicing examples in Embodiment 1 to Embodiment 9 above. At least one step of the configuration method.
  • communication media usually contain computer-readable instructions, data structures, computer program modules, or other data in a modulated data signal such as carrier waves or other transmission mechanisms, and may include any information delivery medium. Therefore, this application is not limited to any specific combination of hardware and software.

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Abstract

本申请实施例提供的一种网络切片实例配置方法和装置,包括:向网络数据分析模块发送网络配置请求信息;接收网络数据分析模块发送的网络配置信息;根据网络配置信息确定网络切片实例的负荷状况,并根据负荷状况确定接入终端接入的目标网络切片实例。

Description

一种网络切片实例配置方法和装置
相关申请的交叉引用
本申请基于申请号为201911033723.0、申请日为2019年10月28日的中国专利申请提出,并要求该中国专利申请的优先权,该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请实施例涉及但不限于通信技术领域,具体而言,涉及但不限于一种网络切片实例配置方法和装置。
背景技术
在第五代的移动通信系统中,引入了网络切片的概念,用户接入网络并建立协议数据单元(Protocol Data Unit,简称PDU)时选择一个合适的网络切片实例建立PDU,并进行后续的数据业务。在网络侧,同一种类型的网络切片可以有多个切片实例,切片实例的选择除了目前数字数据网(Digital Data Network,简称DNN)、单网络切片选择辅助信息(Single Network Slice Selection Assistance Information,简称S-NSSAI)、位置等因素外,还可以参考切片实例的媒体面报文流量和负荷等。
目前标准在5GC中引入了网络数据分析功能(Network Data Analytics Function,简称NWDAF)模块这个网络功能实体,可以分析并且决策出网络切片的负荷。网络切片选择功能(Network Slice Selection Function,简称NSSF)模块通过NWDAF获取到切片实例负荷情况,在用户切片选择的时候参考切片负荷状况选择合适的切片实例。
但当前标准层面提供的解决方案存在如下两个问题:当网络中未部署NSSF模块的时候,无法实现依据网络切片实例(Network Slice Instance,简称NSI)实时的负荷情况进行切片选择。网络中不部署NSSF模块的时候,仅靠访问和移动管理功能(Access and Mobility Management Function,简称AMF)本地策略选择NSI切片实例时,无法参考NSI的流程和 负荷,会导致切片实例负荷不均、甚至会导致个别切片实例NSI负荷过载,无法保证用户数据业务的体验。
当即使网络中部署的NSSF,由于切片负荷目前只下发通知到NSSF,会导致每次PDU建立的时候,AMF都需要和NSSF进行一次切片选择,增加了系统负荷的。
发明内容
本申请实施例提供一种网络切片实例配置方法,所述网络切片实例配置方法包括:向网络数据分析模块发送网络配置请求信息;接收所述网络数据分析模块发送的网络配置信息;根据所述网络配置信息确定网络切片实例的负荷状况,并根据所述负荷状况确定接入终端接入的目标网络切片实例。
本申请实施例还提供一种网络切片实例负荷状况的发送方法,所述网络切片实例负荷状况的发送方法包括:监控并分析网络中所有网络切片实例的负荷状态;当接收到网络切片实例配置模块发送的网络配置请求信息时,根据所述网络配置请求信息向所述网络切片实例配置模块返回网络配置信息,所述网络配置信息至少包括对应的网络切片实例的负荷状态。
本申请实施例还提供一种网络切片实例配置装置,包括:发送模块、接收模块和配置模块;所述发送模块用于向网络数据分析模块发送网络配置请求信息;所述接收模块用于接收所述网络数据分析模块发送的网络配置信息,所述网络配置信息至少包括网络切片实例的负荷状况;所述配置模块用于根据负荷状况向接入终端配置目标网络切片实例。
本申请实施例还提供一种网络切片实例监测装置,包括:发送模块、接收模块和负荷监测模块;所述负荷监测模块用于监测和分析网络中所有的网络切片实例的负荷状态;所述接收模块用于接收网络切片实例配置模块发送的网络配置请求信息;所述发送模块用于向所述网络切片实例配置模块发送网络配置信息,所述网络配置信息至少包括所述网络配置请求信息中对应的网络切片实例的负荷状态。
本申请实施例还提供一种设备,包括:处理器、存储器、通信单元和通信总线;所述通信总线用于实现所述处理器、所述通信单元和所述存储器之间的无线通信连接;所述处理器用于执行存储器中存储的一个或者多个程序,以实现本申请实施例提出的所述的网络切片实 例配置方法的步骤。
本申请实施例还提供一种计算机存储介质,所述计算机可读存储介质存储有一个或者多个程序,所述一个或者多个程序可被一个或者多个处理器执行,以实现本申请实施例提出的所述的网络切片实例配置方法的步骤。
本申请其他特征和相应的有益效果在说明书的后面部分进行阐述说明,且应当理解,至少部分有益效果从本申请说明书中的记载变的显而易见。
附图说明
图1为本申请实施例一提供的一种网络切片实例配置方法的完整流程图;
图2为本申请实施例三提供的AMF主动向NWDAF获取和订阅切片负荷数据的流程图;
图3为本申请实施例四提供的网络中未部署NSSF,AMF在Registration过程中决策切片结果时参考切片实例负荷状况的流程图;
图4为本申请实施例五提供的网络中未部署NSSF,AMF在PDU过程中决策切片结果时参考切片实例负荷状况的流程图;
图5为本申请实施例六提供的AMF接收到NWDAF的切片负荷超过门限的通知,释放切片实例上的PDU的流程图;
图6为本申请实施例七提供的切片实例负荷变化导致用户Allowed NSSAI和Reject NSSAI变化时通知终端的流程图;
图7为本申请实施例八提供的NRF主动向NWDAF获取和订阅切片负荷数据的流程图;
图8为本申请实施例九提供的PDU建立流程中,NRF选择SMF时参考切片实例负荷数据的流程图;
图9为本申请实施例十提供的一种网络切片实例配置装置的结构示意图;
图10为本申请实施例十提供的一种网络切片实例监测装置的结构示意图;
图11为本申请实施例十一提供的一种设备的结构示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白,下面通过具体实施方式结合附图对本申请实施例作进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。
本申请实施例提供的一种网络切片实例配置方法和装置,主要解决的技术问题是目前在网络切片实例的配置容易出现网络切片实例负荷不均,以及配置过程系统负荷高的问题。
实施例一:
为了避免网络切片实例配置时网络切片实例的负荷不均,以及网络切片实例配置系统的负荷较大的问题,本实施例提供了一种网络切片实例配置方法,网络切片配置方法包括:向网络数据分析模块发送网络配置请求信息;接收网络数据分析模块发送的网络配置信息;根据网络配置信息确定网络切片实例的负荷状况,并根据负荷状况确定接入终端接入的目标网络切片实例。
请参见图1,图1为本实施例提供的一种网络切片实例配置方法的完整流程图。当接入终端需要接入网络时,向网络配置端,在图1中为访问和移动管理功能AMF模块,或网络存储库功能(Network Repository Function,简称NRF)模块发送网络接入请求,需要说明的是,在实际应用时,访问和移动管理功能AMF模块和网络存储库功能NRF模块是两个互相连接的模块,而接入终端通常只会和访问和移动管理功能AMF模块进行通信,因此当网络配置端为网络存储库功能NRF模块时,需要通过访问和移动管理功能AMF模块进行转发;当网络配置端接收到接入终端的接入请求时,向网络信息分析处理端,在图1中为网络数据分析功能NWDAF模块发送网络配置信息请求信息,在本实施中,网络数据分析功能NWDAF模块主要作为整个网络监测和分析功能,同时当网络中出现负载超出门限的情况时,即时通知对应的模块进行处理,避免网络出现故障的功能;当网络信息分析处理端接收到网络配置信息请求信息时,向网络配置端返回所求情的网络配置信息;网络配置端从网络配置信息进行必要的处理,提取出网络切片实例的负荷状态,通过提取出的负荷状态确定网络切片实例的配置情况,并发送给接入终端接入对应的目标网络切片实例中,需要说明的是,在另外一些实施例中,网络配置还可以将负荷状态直接发送给接入终端,让接入终端来确定接入的目标网络切片实例。
在本实施例中,网络配置信息包括:根据网络配置请求信息返回的反馈网络配置信息,和/或,网络数据分析功能NWDAF模块主动发送的主动网络配置信息。在实际应用中,网络数据分析功能NWDAF模块不是在接收到请求时才会下发网络配置信息,在一些情况下,例如网络出现异常状况时,网络数据分析功能NWDAF模块也会主动下发主动网络配置信息,从而更好的控制和调整网络状态。因此接收到的网络配置信息可能存在三种情况,一种是根据网络配置请求信息返回的反馈网络配置信息,另外一种是网络数据分析功能NWDAF模块主动发送的主动网络配置信息,还有可能反馈网络配置信息和主动网络配置信息均存在。
在本实施例中,根据网络配置信息确定网络切片实例的负荷状况包括:从网络配置信息中直接获取网络切片实例的负荷状况,和/或,从网络配置信息中获取网络切片实例的负荷数据,分析负荷数据确定网络切片实例的负荷状况;网络切片实例包括全部网络切片实例,或部分网络切片实例。考虑到网络切片实例在一些地方能够承受的负荷大小可能会存在差异,因此,确定负荷状态的步骤可以在网络配置端进行,接收到的网络配置信息中只有对应的负荷数据,网络配置端拿到负荷数据后再根据自身情况确定具体负荷状态,当然常见的也可以在网络数据分析功能NWDAF模块中直接得出网络切片实例的负荷状态。
在本实施例中,当网络配置端是由访问和移动管理功能AMF模块接收网络数据分析功能NWDAF模块发送的网络配置信息时;访问和移动管理功能AMF模块从网络配置信息中确定网络切片实例的负荷状况;当接收到接入终端的网络接入请求时,将负荷状况发送给接入终端发送,用于确定接入终端接入的目标网络切片实例。
在本实施例中,接入终端接入目标网络切片实例包括:以网络注册(Registration)过程进行接入,或以协议数据单元PDU建立过程进行接入。
在本实施例中,当网络中未部署网络切片选择功能NSSF模块,且接入终端接入目标网络切片实例以Registration过程进行接入时;访问和移动管理功能AMF模块接收接入终端的Registration请求,并向接入终端签约的统一数据管理模块UDM(Unified Data Management,简称UDM)发送网络切片选择辅助信息请求;
接收统一数据管理模块UDM返回的网络切片选择辅助信息NSSAI,并对单网络切片选择辅助信息S-NSSAI对应的网络切片实例NSI的负荷状态进行判断;
当单网络切片选择辅助信息S-NSSAI的负荷状态超过门限值时,将对应的单网络切片选 择辅助信息S-NSSAI放置在拒绝网络切片选择辅助信息(Rejected NSSAI)中;当单网络切片选择辅助信息S-NSSAI的负荷状态未超过门限值时,将对应的单网络切片选择辅助信息S-NSSAI放置在允许网络切片选择辅助信息(Allowed NSSAI)中;
在注册接受信息(Registration Accept)中添加拒绝网络切片选择辅助信息Rejected NSSAI和允许网络切片选择辅助信息Allowed NSSAI,并发送给接入终端,用于确定接入终端接入的目标网络切片实例。
在本实施例中,当目标网络切片实例的负荷状况发生改变时,判断改变后的负荷状况是否超出门限值;若超出门限值,向接入终端发送配置更新信息;接收接入终端返回的配置更新响应信息,根据配置更新响应信息确定接入终端是否需要重新进行网络注册Registration。需要说明的是,在本实施例中,门限值包括了最低门限值和最高门限值,增加判断负荷状况是否超出门限值可以及时的将负载超出门限值的网络切片实例切换到适合的网络切片实例中,避免了网络切片实例过载导致网络切片实例出现故障,提高了网络切片实例的使用效率。
在本实施例中,当网络中未部署网络切片选择功能NSSF模块,且接入终端接入目标网络切片实例以协议数据单元PDU建立过程进行接入时;
访问和移动管理功能AMF模块接收接入终端的协议数据单元PDU建立请求,协议数据单元PDU建立请求中包括对应的单网络切片选择辅助信息S-NSSAI;
根据网络配置信息、本地配置信息和单网络切片选择辅助信息S-NSSAI至少一种,确定接入终端对应的目标网络切片实例;
将网络配置信息、本地配置信息和单网络切片选择辅助信息S-NSSAI至少一种,以及目标网络切片实例添加到发现会话管理模块请求中,并发送给网络存储库功能NRF模块;
接收网络存储库功能NRF模块返回的对应会话管理功能(Session Management Function,简称SMF)模块,并建立协议数据单元PDU流程。
在本实施例中,当目标网络切片实例的负荷状况发生改变时,判断改变后的负荷状况是否超出门限值;
若超出门限值,检测超出门限值的网络切片实例上对应的协议数据单元PDU,并将检测结果发送给会话管理功能SMF模块;
接收会话管理功能SMF模块返回的响应信息,根据响应信息确定需要释放的协议数据单元PDU数目。
在本实施例中,当网络配置端是由网络存储库功能NRF模块接收网络数据分析功能NWDAF模块发送的网络配置信息时;
网络存储库功能NRF模块从网络配置信息中确定网络切片实例的负荷状况;
接收访问和移动管理功能AMF模块的发现会话管理功能模块请求,并向访问和移动管理功能AMF模块返回可选会话管理功能模块信息;可选会话管理功能模块信息用于访问和移动管理功能AMF模块确定会话管理功能SMF模块,以确定接入终端接入的目标网络切片实例。
在本实施例中,当网络中未部署网络切片选择功能NSSF模块,且接入终端接入目标网络切片实例以协议数据单元PDU建立过程进行接入时;
网络存储库功能NRF模块接收访问和移动管理功能AMF模块的发现会话管理功能模块请求,发现会话管理功能模块请求包括:本地配置信息和单网络切片选择辅助信息S-NSSAI至少一种;
根据网络切片实例的负荷状况确定可选的会话管理功能SMF模块,并将可选会话管理功能模块信息返回给访问和移动管理功能AMF模块;可选会话管理功能模块信息用于访问和移动管理功能AMF模块和接入终端建立协议数据单元PDU。
本申请实施例提供的一种网络切片实例配置方法,包括:向网络数据分析功能模块发送网络配置请求信息;接收网络数据分析功能模块发送的网络配置信息;根据网络配置信息确定网络切片实例的负荷状况,并根据负荷状况确定接入终端接入的目标网络切片实例。通过网络切片实例配置侧主动向网络数据分析功能模块获取网络配置信息,并通过网络配置信息中的网络切片实例的负荷状况,对接入终端接入的网络切片实例进行配置,避免了接入终端接入负荷比较大的网络切片实例中使得网络切片实例的负荷更加的均匀;同时由于可以获取到多个网络切片实例的负荷状况,在进行网络切片实例的配置时直接由网络切片实例配置侧进行配置,降低了网络切片实例配置系统的负荷。
实施例二:
本实施例提供了一种网络切片实例负荷状况的发送方法,网络切片实例负荷状况的发送方法包括:监控并分析网络中所有网络切片实例的负荷状态;当接收到网络切片实例配置模块发送的网络配置请求信息时,根据网络配置请求信息向网络切片实例配置模块返回网络配置信息,网络配置信息至少包括对应的网络切片实例的负荷状态。
可参见图1,本实施例的一种网络切片实例负荷状况的发送方法对应与图1中网络数据分析功能NWDAF模块一端的动作。
在本实施例中,网络切片实例配置模块包括:访问和移动管理功能AMF模块和网络存储库功能NRF模块任意一种。
在本实施例中,网络配置请求信息包括:实时状况请求信息和订阅状况请求信息;当接收到实时状况请求信息时,需立即向网络切片实例配置模块返回网络配置信息;
当接收到订阅状况请求信息时,根据订阅状况请求信息的内置时间周期或触发条件向网络切片实例配置模块返回网络配置信息。
在本实施例中,网络切片实例负荷状况的发送方法还包括:当检测到网络切片实例的负荷状态超出门限值时,向超出门限值的网络切片实例对应的网络切片实例配置模块发送主动网络配置信息。
本实施例提供了一种网络切片实例负荷状况的发送方法,包括:监控并分析网络中所有网络切片实例的负荷状态;当接收到网络切片实例配置模块发送的网络配置请求信息时,根据网络配置请求信息向网络切片实例配置模块返回网络配置信息,网络配置信息至少包括对应的网络切片实例的负荷状态。通过监控和分析网络中网络切片实例的负荷状态,在接收网络切片实例配置模块发送网络配置请求信息时,将包含了网络切片实例的负荷状态的网络配置信息发送给网络切片实例配置模块,使得网络切片实例配置模块通过获取到的网络配置信息中的网络切片实例的负荷状态,合理的配置网络切片实例,使得配置的网络切片实例的负荷状态更加的均匀,同时由于一次会获取多个网络切片实例的负荷状态,在进行网络切片实例配置时可以直接配置,从而降低了整个系统的负荷。
实施例三:
本实施例提供的网络切片实例配置方法是在,AMF模块主动向NWDAF模块获取和订阅 切片负荷数据的情况下的具体实施例。
参见图2,图2为AMF模块主动向NWDAF模块获取和订阅切片负荷数据的流程图。
图2中包括:S01.AMF模块向NWDAF模块发送数据分析请求,请求切片实例的负荷数据。AMF模块可以向NWDAF模块请求当前网络中所有切片实例的负荷数据,也可以考虑仅请求部分切片实例的负荷数据。
S02.AMF模块接收到NWDAF模块返回的数据分析结果,其中包括切片实例及其对应的负荷状况。
S03.AMF模块保存NWDAF模块返回的切片实例及其负荷状况。后续用户在Registration过程中选择切片或PDU建立过程选择切片实例时,可以参考这些切片负荷数据。
S04.AMF模块除了主动向NWDAF模块请求数据分析结果之外,还可以主动向NWDAF模块订阅切片负荷数据,可以是所有切片实例,或部分请求实例。
S05.AMF模块接收到NWDAF模块返回的订阅响应。订阅响应中可以保护当前时刻各个切片的负荷数据。
S06.AMF模块可以随时接收到NWDAF模块发送的订阅通知消息,其中有切片负荷数据。NWDAF模块可以周期性的通知AMF模块,也可以在切片实例负荷超过一定阈值的时候通知AMF模块.AMF模块可保持最新负荷数据。此外如果切片负荷超过或低于设定值,可以触发后续一些行为,影响用户行为。可参见实施例七和实施例八。
实施例四:
本实施例提供的网络切片实例配置方法是在,未部署NSSF模块时,AMF模块在Registration(流程中为用户切片选择参考切片实例负荷数据情况下的具体实施例。
参见图3,图3为网络中未部署NSSF模块,AMF模块在Registration过程中决策切片结果时参考切片实例负荷状况的流程图。
S01.UE向AMF模块发起注册请求。
S02.注册过程中网络和用户设备(User Equipment,简称UE)之间进行鉴权和安全模式过程,参见TS23502 4.2.2.2.2章节Step 9。
S03.AMF模块向UDM模块获取用户的签约的NSSAI信息。
S04.AMF模块接收到UDM模块返回的签约NSSAI信息。
S05.对于未部署NSSF模块的情况,或者AMF模块依赖自身配置据侧用户切片选择结果时,参考切片实例负荷情况。如果S-NSSAI对应的切片实例NSI负荷都过高,超过一定门限,没有NSI实例可以服务该S-NSSAI,则AMF模块将该S-NSSAI放到Rejected NSSAI之中,不能放置到Allowed NSSAI之中。
S06.Registration流程的后续其他步骤,参见TS23502 4.2.2.2.2章节。
S07.AMF模块在Registration Accept消息中,将Allowed NSSAI和Rejected NSSAI下发给UE(终端侧),其中对于因为切片实例NSI负荷超过设定门限,而导致的无法服务的S-NSSAI以Reject NSSAI的形式下发给UE,避免UE在后续PDU建立的时候使用该S-NSSAI,导致无法选择到合适的NSI实例。
实施例五:
本实施例提供的网络切片实例配置方法是在,未部署NSSF模块时,AMF模块在PDU建立流程中为用户切片选择参考切片实例负荷数据情况下的具体实施例。
参见图4,图4为网络中未部署NSSF模块,AMF模块在PDU过程中决策切片结果时参考切片实例负荷状况的流程图。
S01.UE向AMF模块发起PDU建立请求,其中携带对应的S-NSSAI。
S02.AMF模块依据本地配置,根据S-NSSAI、DNN等因素确定用户对应的NSI切片实例时,考虑切片实例对应的负荷因素。优先考虑负荷较低、且低于设定门限的切片实例。
S03.AMF模块向NRF模块发现SMF模块,除了S-NSSAI、DNN等因素外,还要携带上一步骤中所选择的NSI。
S04.NRF模块根据发现条件选择合适的SMF模块,返回给AMF模块。
S05.PDU建立流程的后续步骤,参考TS23502协议4.3.2.2章节。
实施例六:
本实施例提供的网络切片实例配置方法是在,AMF模块接收到NWDAF模块的切片负荷 超过门限的通知,释放切片实例上的PDU情况下的具体实施例。
参见图5,图5为AMF模块接收到NWDAF模块的切片负荷超过门限的通知,释放切片实例上的PDU的流程图。
S01.NWDAF模块检查到某切片实例负荷超过设定的阈值,则通知订阅该切片负荷的AMF模块。AMF模块接收到切片实例负荷数据,保存切片负荷数据。
S02.AMF模块接收到切片实例负荷数据,保存切片负荷数据。如果切片实例负荷过高,AMF模块检查属于该切片上的PDU,并分别通知SMF模块释放该切片实例上的PDU。
S03.AMF模块接收到SMF模块回复的响应。
S04.SMF模块触发PDU释放,参见TS23502协议
S05.AMF模块触发该切片上的其他PDU,直到切片负荷降低。
S06.NWDAF模块检查到切片负荷低于门限,通知订阅此切片负荷数据的AMF模块。
S07.切片负荷低于阈值,AMF模块停止PDU的释放。
实施例七:
本实施例提供的网络切片实例配置方法是在,切片实例负荷变化导致用户Allowed NSSAI和Reject NSSAI变化时,通知终端情况下的具体实施例。
参见图6,图6为切片实例负荷变化导致用户Allowed NSSAI和Reject NSSAI变化时通知终端的流程图。
S01.NWDAF模块检查到某切片实例负荷低于或超过设定的阈值,则通知订阅该切片负荷的AMF模块。
S02.AMF模块接收到切片实例负荷数据,保存切片负荷数据。如果切片实例负荷低于或高于设定的阈值,AMF模块检查出切片实例负荷状态的变化,影响了用户Allowed NSSAI或Reject NSSAI的变化。AMF模块向UE发送配置更新消息,更新NSSAI信息。
S03.UE回复配置更新响应。
S04.如果AMF模块认为该用户Allowed NSSAI或Reject NSSAI的变化,需要终端重新注册,则触发UE Context Release Command消息,便于触发终端重新发起Registration。
S05.UE回复UE Context Release Complete消息。
S06.终端发起registration流程。
S07.针对其他用户进行如上操作,知道切片负荷正常。
实施例八:
本实施例提供的网络切片实例配置方法是在,NRF模块主动向NWDAF模块获取和订阅切片负荷数据情况下的具体实施例。
参见图7,图7为NRF模块主动向NWDAF模块获取和订阅切片负荷数据的流程图。
S01.NRF模块向NWDAF模块发送NWDAF模块数据分析请求,请求切片实例的负荷数据。NRF模块可以向NWDAF模块可以请求当前网络中所有切片实例的负荷数据,也可以考虑仅请求部分切片实例的负荷数据。
S02.NRF模块接收到NWDAF模块返回的数据分析结果,其中包括切片实例及其对应的负荷状况。
S03.NRF模块保存NWDAF模块返回的切片实例及其负荷状况。后续用户在PDU建立过程中选择SMF模块时,可以参考这些切片负荷数据。
S04.NRF模块除了主动向NWDAF模块请求数据分析结果之外,还可以主动向NWDAF模块订阅切片负荷数据,可以是所有切片实例,或部分请求实例。
S05.NRF模块接收到NWDAF模块返回的订阅响应。订阅响应中可以保护当前时刻各个切片的负荷数据。
S06.NRF模块可以随时接收到NWDAF模块发送的订阅通知消息,其中有切片负荷数据。NWDAF模块可以周期性的通知NRF模块,也可以在切片实例负荷超过一定阈值的时候通知NRF模块。NRF模块可保持最新负荷数据。
实施例九:
本实施例提供的网络切片实例配置方法是在,PDU建立流程中,NRF模块选择SMF模块时参考切片实例负荷数据情况下的具体实施例。
参见图8,图8为PDU建立流程中,NRF模块选择SMF模块时参考切片实例负荷数据 的流程图。
在图8中,NRF模块已经从NWDAF模块中获取到切片实例负荷数据,PDU建立过程中,通过NRF模块发现SMF模块时,NRF模块基于切片实例负荷过滤SMF模块。
S01.UE向AMF模块发起PDU建立请求。
S02.AMF模块向NRF模块发起发现请求便于发现SMF模块。
S03.SMF模块基于发现请求中的参数过滤合适的SMF模块之外,还要参考SMF模块所在的切片实例的负荷和流量。如果负荷过高超过一定门限,应该剔除该切片实例对应的SMF模块。
S04.NRF模块向AMF模块返回发现结果。
S05.PDU建立的后续流程,参考T23502 4.3.2.2章节。
实施例十:
本实施例提供了一种网络切片实例配置装置,其可应用于本申请实施例的网络配置端,参见图9所示,该装置包括:发送模块901、接收模块902和配置模块903;发送模块901用于向网络数据分析模块发送网络配置请求信息;接收模块902用于接收网络数据分析功能模块发送的网络配置信息,网络配置信息至少包括网络切片实例的负荷状况;配置模块903用于根据负荷状况向接入终端配置目标网络切片实例。对于该装置中的各个模块所实现的步骤和具体过程,可参照上述各实施例所示过程,在此不再赘述。
本实施例还提供了一种网络切片实例监测装置,其可应用于本申请实施例的网络信息分析处理端,请参见图10所示,该网络切片实例监测装置包括:发送模块1001、接收模块1002和负荷监测模块1003;负荷监测模块1003用于监测和分析网络中所有的网络切片实例的负荷状态;接收模块1002用于接收网络切片实例配置模块发送的网络配置请求信息;发送模块1001用于向网络切片实例配置模块发送网络配置信息,网络配置信息至少包括网络配置请求信息中对应的网络切片实例的负荷状态。对于该装置中的各个模块所实现的步骤和具体过程,可参照上述各实施例所示过程,在此不再赘述。
本实施例提供了一种网络切片实例配置装置和一种网络切片实例监测装置,网络切片实例监测装置用于监测和分析网络切片实例的负荷状态,而网络切片实例配置从网络切片实例 监测装置出获取网络切片实例的负荷状态,并根据网络切片实例的负荷状态对网络切片实例进行配置,避免了接入终端接入负荷比较大的网络切片实例中使得网络切片实例的负荷更加的均匀;同时由于可以获取到多个网络切片实例的负荷状况,在进行网络切片实例的配置时直接由网络切片实例配置侧进行配置,降低了网络切片实例配置系统的负荷。
实施例十一:
本实施例提供了一种设备,参见图11所示,该设备包括:处理器211、存储器212、通信单元213和通信总线214;通信总线214用于实现处理器211、通信单元213和存储器212之间的通信连接;处理器211用于执行存储器212中存储的一个或者多个程序,以实现本申请实施例提供的网络切片实例配置方法的步骤。
对于该装置中的各个模块所实现的步骤和具体过程,可参照上述各实施的过程,在此不再赘述。
本实施例还提供了一种计算机可读存储介质,该计算机可读存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、计算机程序模块或其他数据)的任何方法或技术中实施的易失性或非易失性、可移除或不可移除的介质。计算机可读存储介质包括但不限于随机存取存储器(Random Access Memory,,简称RAM),只读存储器(Read-Only Memory,简称ROM),带电可擦可编程只读存储器(Electrically Erasable Programmable read only memory,简称EEPROM)、闪存或其他存储器技术、光盘只读存储器(Compact Disc Read-Only Memory,简称CD-ROM),数字多功能盘(Digital Versatile Disc,简称DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。
本实施例中的计算机可读存储介质可用于存储一个或者多个计算机程序,其存储的一个或者多个计算机程序可被处理器执行,以实现上述实施例1到实施例九中的网络切片实例配置方法的至少一个步骤。
可见,本领域的技术人员应该明白,上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件(可以用计算装置可执行的计算机程序代码来实现)、固件、硬件及其适当的组合。在硬件实施方式中,在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分;例如,一个物理组件可以具有多个功能,或者一个功能 或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器,如中央处理器、数字信号处理器或微处理器执行的软件,或者被实施为硬件,或者被实施为集成电路,如专用集成电路。
此外,本领域普通技术人员公知的是,通信介质通常包含计算机可读指令、数据结构、计算机程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据,并且可包括任何信息递送介质。所以,本申请不限制于任何特定的硬件和软件结合。
以上内容是结合具体的实施方式对本申请实施例所作的进一步详细说明,不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本申请的保护范围。

Claims (19)

  1. 一种网络切片实例配置方法,包括:向网络数据分析功能NWDAF模块发送网络配置请求信息;
    接收所述网络数据分析功能NWDAF模块发送的网络配置信息;
    根据所述网络配置信息确定网络切片实例的负荷状况,并根据所述负荷状况确定接入终端接入的目标网络切片实例。
  2. 如权利要求1所述的网络切片实例配置方法,其中,所述网络配置信息包括:根据所述网络配置请求信息返回的反馈网络配置信息,和/或,所述NWDAF模块主动发送的主动网络配置信息。
  3. 如权利要求2所述的网络切片实例配置方法,其中,所述根据所述网络配置信息确定网络切片实例的负荷状况包括:从所述网络配置信息中直接获取网络切片实例的负荷状况,和/或,从所述网络配置信息中获取网络切片实例的负荷数据,分析所述负荷数据确定网络切片实例的负荷状况;
    所述网络切片实例包括全部网络切片实例,或部分网络切片实例。
  4. 如权利要求3所述的网络切片实例配置方法,其中,当由访问和移动管理功能AMF模块接收所述NWDAF模块发送的网络配置信息时;
    所述AMF模块从所述网络配置信息中确定网络切片实例的负荷状况;
    当接收到接入终端的网络接入请求时,将所述负荷状况发送给所述接入终端发送,用于确定所述接入终端接入的目标网络切片实例。
  5. 如权利要求4所述的网络切片实例配置方法,其中,所述接入终端接入目标网络切片实例包括:以网络注册Registration过程进行接入,或以协议数据单元PDU建立过程进行接入。
  6. 如权利要求5所述的网络切片实例配置方法,其中,当网络中未部署网络切片选择功能NSSF模块,且所述接入终端接入目标网络切片实例以网络注册Registration过程进行接入时;
    所述AMF模块接收所述接入终端的网络注册Registration请求,并向所述接入终端签约的统一数据管理UDM模块发送网络切片选择辅助信息请求;
    接收所述UDM模块返回的网络切片选择辅助信息NSSAI,并对单网络切片选择辅助信息S-NSSAI对应的网络切片实例NSI的负荷状态进行判断;
    当单网络切片选择辅助信息S-NSSAI的负荷状态超过门限值时,将对应的单网络切片选择辅助信息S-NSSAI放置在拒绝网络切片选择辅助信息Rejected NSSAI中;当单网络切片选择辅助信息S-NSSAI的负荷状态未超过门限值时,将对应的单网络切片选择辅助信息S-NSSAI放置在允许网络切片选择辅助信息Allowed NSSAI中;
    在注册接受信息Registration Accept中添加拒绝网络切片选择辅助信息Rejected NSSAI和允许网络切片选择辅助信息Allowed NSSAI,并发送给所述接入终端,用于确定所述接入终端接入的目标网络切片实例。
  7. 如权利要求6所述的网络切片实例配置方法,其中,当所述目标网络切片实例的负荷状况发生改变时,判断改变后的负荷状况是否超出门限值;
    若超出门限值,向所述接入终端发送配置更新信息;
    接收所述接入终端返回的配置更新响应信息,根据所述配置更新响应信息确定所述接入终端是否需要重新进行网络注册Registration。
  8. 如权利要求5所述的网络切片实例配置方法,其中,当网络中未部署网络切片选择功能NSSF模块,且所述接入终端接入目标网络切片实例以协议数据单元PDU建立过程进行接入时;
    所述AMF模块接收所述接入终端的协议数据单元PDU建立请求,所述协议数据单元PDU建立请求中包括对应的单网络切片选择辅助信息S-NSSAI;
    根据所述网络配置信息、本地配置信息和所述单网络切片选择辅助信息S-NSSAI至少一种,确定所述接入终端对应的目标网络切片实例;
    将所述网络配置信息、本地配置信息和所述单网络切片选择辅助信息S-NSSAI至少一种,以及所述目标网络切片实例添加到发现会话管理功能模块请求中,并发送给网络存储库功能NRF模块;
    接收所述NRF模块返回的对应会话管理功能SMF模块,并建立协议数据单元PDU流程。
  9. 如权利要求8所述的网络切片实例配置方法,其中,当所述目标网络切片实例的负荷状况发生改变时,判断改变后的负荷状况是否超出门限值;
    若超出门限值,检测超出门限值的网络切片实例上对应的协议数据单元PDU,并将检测结果发送给所述SMF模块;
    接收所述SMF模块返回的响应信息,根据所述响应信息确定需要释放的协议数据单元PDU数目。
  10. 如权利要求3所述的网络切片实例配置方法,其中,当由网络存储库功能NRF模块接收所述NWDAF模块发送的网络配置信息时;
    所述NRF模块从所述网络配置信息中确定网络切片实例的负荷状况;
    接收访问和移动管理功能AMF模块的发现会话管理功能模块请求,并向所述AMF模块返回可选会话管理功能模块信息;所述可选会话管理功能模块信息用于所述AMF模块确定会话管理功能SMF模块,以确定接入终端接入的目标网络切片实例。
  11. 如权利要求10所述的网络切片实例配置方法,其中,当网络中未部署网络切片选择功能NSSF模块,且所述接入终端接入目标网络切片实例以协议数据单元PDU建立过程进行接入时;
    所述网络存储库功能NRF模块接收访问和移动管理功能AMF模块的发现会话管理功能模块请求,所述发现会话管理功能模块请求包括:本地配置信息和所述单网络切片选择辅助信息S-NSSAI至少一种;
    根据所述网络切片实例的负荷状况确定可选的会话管理功能SMF模块,并将所述可选SMF模块信息返回给所述AMF模块;所述可选SMF模块信息用于所述AMF模块和接入终端建立协议数据单元PDU。
  12. 一种网络切片实例负荷状况的发送方法,包括:
    监控并分析网络中所有网络切片实例的负荷状态;
    当接收到网络切片实例配置模块发送的网络配置请求信息时,根据所述网络配置请求信息向所述网络切片实例配置模块返回网络配置信息,所述网络配置信息至少包括对应的网络 切片实例的负荷状态。
  13. 如权利要求12所述的网络切片实例负荷状况的发送方法,其中,所述网络切片实例配置模块包括:访问和移动管理功能AMF模块和网络存储库功能NRF模块任意一种。
  14. 如权利要求12所述的网络切片实例负荷状况的发送方法,其中,所述网络配置请求信息包括:实时状况请求信息和订阅状况请求信息;
    当接收到所述实时状况请求信息时,需立即向所述网络切片实例配置模块返回网络配置信息;
    当接收到所述订阅状况请求信息时,根据所述订阅状况请求信息的内置时间周期或触发条件向所述网络切片实例配置模块返回网络配置信息。
  15. 如权利要求12所述的网络切片实例负荷状况的发送方法,还包括:
    当检测到网络切片实例的负荷状态超出门限值时,向超出门限值的网络切片实例对应的网络切片实例配置模块发送主动网络配置信息。
  16. 一种网络切片实例配置装置,包括:发送模块、接收模块和配置模块;
    所述发送模块用于向网络数据分析模块发送网络配置请求信息;
    所述接收模块用于接收所述网络数据分析模块发送的网络配置信息,所述网络配置信息至少包括网络切片实例的负荷状况;
    所述配置模块用于根据负荷状况向接入终端配置目标网络切片实例。
  17. 一种网络切片实例监测装置,包括:发送模块、接收模块和负荷监测模块;
    所述负荷监测模块用于监测和分析网络中所有的网络切片实例的负荷状态;
    所述接收模块用于接收网络切片实例配置模块发送的网络配置请求信息;
    所述发送模块用于向所述网络切片实例配置模块发送网络配置信息,所述网络配置信息至少包括所述网络配置请求信息中对应的网络切片实例的负荷状态。
  18. 一种设备,包括:处理器、存储器、通信单元和通信总线;
    所述通信总线用于实现所述处理器、所述通信单元和所述存储器之间的无线通信连接;
    所述处理器用于执行存储器中存储的一个或者多个程序,以实现如权利要求1至11任一项所述的网络切片实例配置方法的步骤。
  19. 一种计算机可读存储介质,存储有一个或者多个计算机程序,所述一个或者多个计算机程序可被一个或者多个处理器执行,以实现如权利要求1至11任一项所述的网络切片实例配置方法的步骤。
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