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WO2021057591A1 - 网络切片及网络子切片的管理方法和系统 - Google Patents

网络切片及网络子切片的管理方法和系统 Download PDF

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Publication number
WO2021057591A1
WO2021057591A1 PCT/CN2020/115902 CN2020115902W WO2021057591A1 WO 2021057591 A1 WO2021057591 A1 WO 2021057591A1 CN 2020115902 W CN2020115902 W CN 2020115902W WO 2021057591 A1 WO2021057591 A1 WO 2021057591A1
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slice
delay
sub
network
network sub
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English (en)
French (fr)
Inventor
杨洋
刘军杰
汪锐
张清
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0852—Delays

Definitions

  • the present disclosure relates to (but not limited to) the field of long-term evolution network technology.
  • Network slicing is an important new feature of the 5G network architecture.
  • the 5G network provides a network slicing mechanism to serve different application services, realize flexible resource scheduling and scheduling, and adapt to the rapid launch of services.
  • Service-level agreement (SLA) monitoring for network slicing is a necessary content to ensure the quality of network slicing services.
  • indicators such as delay, bandwidth, jitter, and packet loss rate are mainly defined.
  • the monitoring of network slicing delay currently adopts an end-to-end (user terminal to core network side server) measurement method, that is, sending data packets on the core network or the wireless side to measure the round trip delay.
  • this method cannot measure the delay of each sub-network in the network slice.
  • the delay index of the network slice is abnormal, it is impossible to locate the abnormal sub-network segment.
  • the embodiment of the present disclosure provides a network sub-slice management method, including: receiving a delay monitoring request sent by a network slice management system, where the delay monitoring request includes a sub-slice of at least one network sub-slice decomposed by a target network slice Information; acquiring delay monitoring information of each of the network sub-slices; and feeding back the delay monitoring information to the network slice management system.
  • the embodiment of the present disclosure provides a network slice management method, including: determining sub-slice information of at least one network sub-slice decomposed by a target network slice; and managing the network sub-slices according to the sub-slice information of the at least one network sub-slice A delay monitoring request sent by the system; and receiving the delay monitoring information of each of the network sub-slices fed back by the network sub-slice management system.
  • the embodiment of the present disclosure provides a network sub-slice management system, including: one or more first processors; and a first storage device, on which one or more programs are stored, when the one or more programs are When the one or more first processors execute, the one or more first processors implement the network sub-slice management method according to the embodiment of the present disclosure.
  • the embodiment of the present disclosure provides a network slice management system, including: one or more second processors; and a second storage device, on which one or more programs are stored, when the one or more programs are When the one or more second processors execute, the one or more second processors implement the network slice management method according to the embodiment of the present disclosure.
  • FIG. 1 is a flowchart of a network sub-slice management method provided by an embodiment of the disclosure
  • FIG. 2 is a flowchart of the realization of step S102 in the embodiment of the disclosure.
  • FIG. 3 is a flowchart of another network sub-slice management method provided by an embodiment of the present disclosure
  • FIG. 4 is a flowchart of the implementation of step S102' in the embodiment of the disclosure.
  • FIG. 5A is a flowchart of the implementation of step S102a in the embodiment of the disclosure.
  • FIG. 5B is a flowchart of the implementation of step S102b in the embodiment of the disclosure.
  • FIG. 5C is a flowchart of the implementation of step S102c in the embodiment of the disclosure.
  • FIG. 6 is a flowchart of a network slice management method provided by an embodiment of the disclosure.
  • FIG. 7 is a flowchart of another network slice management method provided by an embodiment of the present disclosure.
  • Fig. 8 is a signaling diagram of a network slice management method provided by an embodiment of the disclosure.
  • the technical solution of the present disclosure relates to a Network Slice Management Function (NSMF) system and a Network Slice Subnet Management Function (NSMF) system.
  • the NSMF system as a network slice orchestration and guarantee system, can manage the life cycle of network slices and end-to-end guarantee; the NSSMF system is responsible for completing the resource application of network sub-slices and managing the life cycle of network sub-slices.
  • the target network slice can be any network slice to be monitored in the 5G network, and the target network slice can be decomposed into multiple network sub-slices according to actual monitoring requirements. Through the NSSMF system, each network sub-slice can be managed accordingly.
  • the technical solution of the present disclosure can realize segmented and refined management of network slicing, and can obtain the delay data of each segment of the sub-network as required, so that when the overall delay of the network slicing is abnormal, the abnormality can be effectively located.
  • Sub-network segment
  • FIG. 1 is a flowchart of a network sub-slice management method provided by an embodiment of the disclosure. As shown in FIG. 1, the method shown in FIG. 1 is executed by an NSSMF system, and the method includes steps S101 to S103.
  • step S101 a time delay monitoring request sent by the network slice management system is received.
  • the NSMF system provides and activates a message center service (for example, Kafka service), which is used for the NSSMF system to upload time delay data.
  • a message center service for example, Kafka service
  • the NSMF system sends a delay monitoring request to the NSSMF system to perform delay monitoring on the target network slice.
  • the delay monitoring request includes sub-slice information of at least one network sub-slice decomposed from the target network slice.
  • the sub-slice information includes the sub-slice identity.
  • the delay monitoring request may further include: a measurement task configured for each network sub-slice (a delay measurement task in this disclosure), a granularity of performance data (for example, 10 seconds), and a target address for feedback ( Including the address and topic of the Kafka service provided and activated by the NSMF system).
  • step S102 the time delay monitoring information of each network sub-slice is obtained.
  • step S102 is a flow chart of the implementation of step S102 in an embodiment of the present disclosure. As shown in Fig. 2, in some embodiments, step S102 includes: for each network sub-slice, the following steps S1021 to S1023 are executed.
  • step S1021 a delay measurement task is created to the network element device corresponding to the network sub-slice.
  • the delay measurement task created to the network element device may include measurement task type (in this disclosure, it is embodied as the delay between the network element device and the target object), performance data granularity (for example, 10s), etc. .
  • step S1022 the time delay monitoring data fed back by the network element device is received.
  • the delay monitoring data may include delay data (uplink delay and/or downlink delay) between the network element device and the target object.
  • step S1023 the delay monitoring information of the network sub-slice is generated according to the delay monitoring data.
  • the delay monitoring information may include the sub-slice identity identifier of the network sub-slice, the data collection time identifier, the delay monitoring data, and so on.
  • step S103 the delay monitoring information is fed back to the network slice management system.
  • the NSSMF system feeds back the collected delay monitoring information to the NSMF system for storage by the NSMF system.
  • the user can check the delay data of at least one network sub-slice decomposed by the target network slice through the NSMF system. Realize segmented and refined management of network-to-network slices.
  • the sub-network segment that causes the abnormality can be effectively located.
  • FIG. 3 is a flowchart of another network sub-slice management method provided by an embodiment of the disclosure.
  • the network sub-slice management method is a specific implementation solution based on the network slice management method shown in FIG. 1 .
  • the execution subject is the NSSMF system, and the method includes steps S101 to S103'.
  • step S101 a time delay monitoring request sent by the network slice management system is received.
  • the target network slice can be decomposed into: wireless network sub-slice, transmission network sub-slice, and core network sub-slice according to the network hierarchy.
  • the delay monitoring request includes: sub-slice information of the wireless network sub-slice, sub-slice information of the transmission network sub-slice, and sub-slice information of the core network sub-slice.
  • step S102' the time delay monitoring information of the wireless network sub-slice, the transmission network sub-slice and the core network sub-slice are obtained respectively.
  • Fig. 4 is a flowchart of the implementation of step S102' in the embodiment of the disclosure. As shown in Fig. 4, step S102' includes steps S102a to S102c.
  • step S102a the time delay monitoring information of the wireless network sub-slice is acquired.
  • step S102b the delay monitoring information of the sub-slice of the transmission network is acquired.
  • step S102c the time delay monitoring information of the core network sub-slice is acquired.
  • step S102a, step S102b, and step S102c can be executed sequentially or simultaneously, and the present disclosure does not limit the execution order of the three.
  • the NSSMF system can be divided into a wireless network NSSMF subsystem, a transmission network NSSMF subsystem, and a core network NSSMF subsystem to execute the above steps S102a, S102b, and S102c respectively.
  • Fig. 5A is a flowchart of the implementation of step S102a in an embodiment of the disclosure. As shown in Fig. 5a, step S102a includes steps S1021a to S1024a.
  • step S1021a a wireless network delay measurement task is created to at least one base station corresponding to the wireless network sub-slice.
  • the wireless network delay measurement task specifically includes the wireless network uplink delay measurement task and the wireless network downlink delay measurement task.
  • Wireless network travel delay specifically refers to the uplink delay from a user terminal (User Equipment, UE) to a centralized unit (Centralized Unit, abbreviated as CU) in the base station;
  • CU Centralized Unit
  • Wireless network downlink delay specifically refers to the CU to UE The downlink delay.
  • the distributed unit (DU) in the base station sends the measurement message to the CU in the same base station through the SDAP protocol, and the CU sends the measurement message to the CU in the same base station.
  • the wireless network downlink delay is the time difference between the first end time and the first start time
  • the wireless network travel delay is the second end time and the second start time. The time difference between the start time. It should be noted that in the process of measuring the delay between a certain CU and a certain UE, Harq retransmission may occur. At this time, the average value of multiple measurement processes can be calculated to obtain the time delay between the CU and the UE.
  • the wireless network sub-slice may include multiple base stations (network element devices in the wireless network sub-slice).
  • the wireless network NSSMF subsystem can select at least one base station from multiple base stations through random sampling or non-random sampling, and create a wireless network delay measurement task in the selected base station.
  • each base station can correspond to multiple UEs, that is, one CU can send measurement messages to multiple UEs. At this time, one base station can feed back multiple wireless network delay monitoring data to the NSMF.
  • the technical solution of the present disclosure does not limit the number of base stations included in the wireless network sub-slice, and the number of UEs corresponding to each base station.
  • step S1022a the wireless network delay monitoring data fed back by each base station is received.
  • the wireless network delay detection data includes wireless network uplink delay data and wireless network downlink delay data.
  • step S1023a the uplink delay value of the wireless network sub-slice is determined according to the wireless network uplink delay data, and the downlink delay value of the wireless network sub-slice is determined according to the wireless network downlink delay data.
  • all wireless network uplink delay data are averaged, and the calculation result is used as the uplink delay value of the wireless network sub-slice.
  • all wireless network downlink delay data are averaged, and the calculation result is used as the downlink delay value of the wireless network sub-slice.
  • step S1024a based on the uplink delay value and the downlink delay value of the wireless network sub-slice, the delay monitoring information of the wireless network sub-slice is constructed.
  • the delay monitoring information of the wireless network sub-slice includes the sub-slice identity of the wireless network sub-slice, the data collection time identifier, the uplink delay value and the downlink delay value of the wireless network sub-slice.
  • Fig. 5B is a flow chart of the realization of step S102b in the embodiment of the disclosure. As shown in Fig. 5b, step S102b includes steps S1021b to S1024b.
  • step S1021b a transmission network delay measurement task is created to at least one provider edge device corresponding to the transmission network sub-slice.
  • the transmission network delay measurement task specifically includes the transmission network transmission delay measurement task and the transmission network downlink delay measurement task.
  • Transmission network travel delay specifically refers to the uplink delay from the provider edge equipment (Provider Edge, referred to as PE) to the customer edge equipment (Customer Edge, referred to as CE) on the side of the core network data center (DC) ;
  • Transport network downlink delay specifically refers to the downlink delay from CE to PE.
  • the PE will measure the uplink/downlink delay between the PE and the CE through the TWAMP protocol.
  • the specific process of detecting the time delay between two terminals based on the TWAMP protocol belongs to a conventional technology in the field, and will not be described in detail here.
  • the transmission network sub-slice may include multiple PEs (network element devices in the transmission network sub-slice).
  • the NSSMF subsystem of the transmission network may select at least one PE among multiple PEs through random sampling or non-random sampling, and create a transmission network delay measurement task in the selected PE.
  • the number of CEs on the DC side of the core network can also be multiple, so one PE can correspond to one or more CEs, that is, one PE can feed back multiple transmission network delay monitoring data to the transmission network NSSMF subsystem.
  • the technical solution of the present disclosure does not limit the number of PEs included in the transmission network sub-slice and the number of CEs included in the DC side in the core network sub-slice.
  • step S1022b the transmission network delay monitoring data fed back by the edge devices of each provider is received.
  • Transmission network delay detection data includes transmission network transmission delay data and transmission network downlink delay data.
  • step S1023b the uplink delay value of the transmission network sub-slice is determined according to the transmission network delay data, and the downlink delay value of the transmission network sub-slice is determined according to the transmission network downlink delay data.
  • the maximum value is selected from all the transmission network uplink delay data and used as the uplink delay value of the transmission network sub-slice.
  • the maximum value is selected from all the downlink delay data of the transmission network and used as the downlink delay value of the sub-slice of the transmission network.
  • step S1024b based on the uplink delay value and the downlink delay value of the transmission network sub-slice, the delay monitoring information of the transmission network sub-slice is constructed.
  • the delay monitoring information of the transmission network sub-slice includes the sub-slice identity identifier of the transmission network sub-slice, the data collection time identifier, the uplink delay value and the downlink delay value of the transmission network sub-slice.
  • Fig. 5C is a flow chart of an implementation of step S102c in an embodiment of the disclosure. As shown in Fig. 5c, step S102c includes steps S1021c to S1024c.
  • step S1021c a core network delay measurement task is created to at least one user edge device located on the data center side corresponding to the core network sub-slice.
  • the core network delay measurement task specifically includes the core network uplink delay measurement task and the core network downlink delay measurement task.
  • Core network latency specifically refers to the uplink latency from the CE to the server;
  • core network latency specifically refers to the downlink latency from the server to the CE.
  • the core network uplink delay can include the uplink delay from the CE to the user plane function (UPF) network element and the uplink delay from the UPF network element to the server;
  • the core network downlink delay can include the server to the UPF network element Downlink delay and the downlink delay from UPF network element to CE.
  • UPF user plane function
  • the CE will measure the uplink/downlink delay between the CE and the UPF and the uplink/downlink delay between the UPF and the server through the TWAMP protocol.
  • the server is specifically an IP Multimedia Subsystem (IMS for short) server.
  • IMS IP Multimedia Subsystem
  • the core network sub-slice may include multiple CEs (network element devices in the transmission network sub-slice) and multiple UPF network elements.
  • One CE can feed back multiple core network delay monitoring data to the core network NSSMF subsystem.
  • step S1022c the core network delay monitoring data fed back by each user edge device is received.
  • the core network delay detection data includes the first uplink delay data from the CE to the UPF network element, the second uplink delay data from the UPF network element to the server, the first downlink delay data from the server to the UPF network element, and the UPF network element.
  • the second downlink delay data to the CE includes the first uplink delay data from the CE to the UPF network element, the second uplink delay data from the UPF network element to the server, the first downlink delay data from the server to the UPF network element, and the UPF network element.
  • step S1023c the uplink delay value from the data center side to the user plane function side in the core network sub-slice is determined according to the first uplink delay data, and the user plane function side in the core network sub-slice is determined according to the second uplink delay data.
  • the downlink delay value from the server to the user plane function side in the core network sub-slice is determined according to the first downlink delay data, and the core network sub-slice is determined according to the second downlink delay data
  • the maximum value is selected from all the first uplink delay data to be used as the uplink delay value from the DC side to the UPF side in the core network sub-slice.
  • the maximum value is selected from all the second uplink delay data and used as the uplink delay value from the UPF side to the server in the core network sub-slice.
  • the maximum value is selected from all the first downlink delay data to be used as the downlink delay value from the server to the UPF side in the core network sub-slice.
  • the maximum value is selected from all the second downlink delay data and used as the downlink delay value from the UPF side to the DC side in the core network sub-slice.
  • step S1024c based on the uplink delay value from the data center side to the user plane function side in the core network subslice, the uplink delay value from the user plane function side to the server in the core network subslice, and the user plane from the server to the core network subslice.
  • the downlink delay value on the function side and the downlink delay value from the user plane function side to the data center side in the core network sub-slice are used to construct the delay monitoring information of the core network sub-slice.
  • the delay monitoring information of the transmission network sub-slice includes the sub-slice identity of the core network sub-slice, the data collection time identifier, the uplink delay value and the downlink delay value between the DC side and the UPF side, and the UPF The uplink delay value and the downlink delay value between the side and the server.
  • the delay monitoring information of the transmission sub-slice can also include the slice uplink delay value of the transmission network sub-slice (the size is equal to the sum of the uplink delay value from the DC side to the UPF side and the uplink delay value from the UPF side to the server) and The slice downlink delay value of the transmission network sub-slice (the size is equal to the sum of the downlink delay value from the server to the UPF side and the downlink delay value from the UPF side to the DC side).
  • step S103' the time delay monitoring information of the wireless network sub-slice, the transmission network sub-slice, and the core network sub-slice is fed back to the network slice management system.
  • the technical solutions of the embodiments of the present disclosure can implement segmented measurement of the time delays of the wireless network sub-slice, the transmission network sub-slice, and the core network sub-slice in the target network slice, so as to facilitate refined management.
  • FIG. 6 is a flowchart of a network slice management method provided by an embodiment of the present disclosure. As shown in FIG. 6, the execution body of the method is an NSMF system, and the method includes steps S201 to S203.
  • step S201 sub-slice information of at least one network sub-slice decomposed by the target network slice is determined.
  • the NSMF system stores slice information of each network slice under its jurisdiction.
  • the slice information of the network slice records the sub-slice information of each network sub-slice decomposed by the network slice.
  • the sub-slice information includes the sub-slice identity.
  • the NSMF system can query its own database to find out the sub-slice information of all the network sub-slices corresponding to the target network slice, and then filter out at least one sub-slice information from all the sub-slices that are queried according to actual needs for subsequent use. The delay of the network sub-slice corresponding to the sub-slice information is monitored.
  • the delay of all network sub-slices decomposed by the target network slice can be monitored.
  • the NSMF system in response to the completion of the creation of the target slice network, starts to execute the above step S201.
  • the NSMF system starts to execute the above step S201 in response to the user's monitoring requirements.
  • step S202 a delay monitoring request sent to the network sub-slice management system according to the sub-slice information of at least one network sub-slice.
  • a delay monitoring request is generated according to the sub-slice information of the network sub-slice determined in step S201, and the delay monitoring request is sent to the NSSMF system for the NSSMF system to collect the delays of the corresponding network sub-slices.
  • step S203 the time delay monitoring information of each network sub-slice fed back by the network sub-slice management system is received.
  • the NSMF system receives the delay monitoring information of each network sub-slice fed back by the NSSMF system, and stores it for users to query.
  • FIG. 7 is a flowchart of another network slice management method provided by an embodiment of the disclosure.
  • the network slice management method is a specific implementation solution based on the network slice management method shown in FIG.
  • the main body is the NSMF system, and the method includes steps S201' to S205'.
  • step S201' determine the sub-slice information of the wireless network sub-slice, the transmission network sub-slice and the core network sub-slice decomposed by the target network slice.
  • the sub-slice information includes the sub-slice identity.
  • step S202' a delay monitoring request sent to the network sub-slice management system according to the sub-slice information of the wireless network sub-slice, the transmission network sub-slice, and the core network sub-slice.
  • the delay monitoring request includes sub-slice information of the wireless network sub-slice, sub-slice information of the transmission network sub-slice, and sub-slice information of the core network sub-slice.
  • step S203' receive the time delay monitoring information of the wireless network sub-slice, the transmission network sub-slice, and the core network sub-slice fed back by the network sub-slice management system.
  • the process for the network sub-slice management system to obtain the delay monitoring information of the wireless network sub-slice, the transmission network sub-slice, and the core network sub-slice can refer to the content in the foregoing embodiment, and will not be repeated here.
  • step S204' it is detected whether the time delay monitoring information fed back by the network sub-slice management system is complete.
  • the NSMF when the NSMF receives the delay monitoring information of the wireless network sub-slice, the transmission network sub-slice, and the core network sub-slice fed back by the NSSMF, it detects that the delay monitoring information fed back by the NSSMF is complete, and then performs step S205'; otherwise, , Continue to perform step S203'.
  • step S205' the overall delay value of the target network slice is calculated according to the delay monitoring information of the wireless network sub-slice, the delay monitoring information of the transmission network sub-slice, and the delay monitoring information of the core network sub-slice.
  • the overall delay value of the target network slice includes the overall uplink delay and the overall downlink delay of the target network slice.
  • the overall uplink delay of the target network slice is equal to the sum of the uplink delay of the wireless network sub-slice, the uplink delay of the transmission network sub-slice, and the uplink delay of the core network sub-slice; the overall downlink delay of the target network slice is equal to the wireless network sub-slice The sum of the downlink delay of the slice, the downlink delay of the transmission network sub-slice, and the downlink delay of the core network sub-slice.
  • FIG. 8 is a signaling diagram of a network slice management method provided by an embodiment of the disclosure. As shown in FIG. 8, it includes steps BZ01 to BZ09.
  • step BZ01 the NSMF system determines the sub-slice identity of each network sub-slice decomposed by the target network slice.
  • step BZ02 the NSMF system sends a delay monitoring request to the NSSMF system according to the sub-slice identity of each network sub-slice.
  • step BZ03 the NSSMF system receives the delay monitoring request sent by the NSMF system.
  • step BZ04 NSSMF creates a delay measurement task to the network element device corresponding to the corresponding network sub-slice.
  • step BZ05 the NSSMF system generates delay monitoring information for each network sub-slice according to the delay data fed back by the network element equipment.
  • step BZ06 the NSSMF system feeds back the delay monitoring information of each network sub-slice to the NSMF system.
  • step BZ07 the NSMF system receives and stores the delay monitoring information of each network sub-slice.
  • step BZ08 the NSMF system detects whether the delay monitoring information for the target network slice is complete.
  • step BZ09 When the delay monitoring information of the target network slice is complete, perform step BZ09; otherwise, continue to perform step BZ07.
  • step BZ09 the NSMF system calculates the overall delay of the target network slice.
  • the embodiment of the present disclosure also provides a network sub-slice management system, which includes one or more first processors and a first storage device.
  • the first storage device stores one or more programs; when the one or more programs When executed by the one or more first processors, the one or more first processors implement the network sub-slice management method provided by the embodiments shown in FIG. 1 and FIG. 3.
  • the embodiment of the present disclosure also provides a network slice management system, which includes one or more second processors and a second storage device.
  • the second storage device stores one or more programs; when the one or more programs are When the one or more second processors execute, the one or more second processors implement the network slice management method provided in the foregoing embodiments of FIG. 6 and FIG. 7.
  • the functional modules/units in the device can be implemented as software, firmware, hardware, and appropriate combinations thereof.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may consist of several physical components.
  • the components are executed cooperatively.
  • Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .
  • Such software may be distributed on a computer-readable medium
  • the computer-readable medium may include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium).
  • the term computer storage medium includes volatile and non-volatile data implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data).
  • Information such as computer-readable instructions, data structures, program modules, or other data.
  • Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or Any other medium used to store desired information and that can be accessed by a computer.
  • communication media usually contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as carrier waves or other transmission mechanisms, and may include any information delivery media. .

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Abstract

本公开提供了一种网络子切片管理方法和系统，以及网络切片管理方法和系统。所述网络子切片管理方法包括：接收网络切片管理系统发送的时延监控请求，所述时延监控请求包括目标网络切片所分解出的至少一个网络子切片的子切片信息；获取各所述网络子切片的时延监控信息；以及将所述时延监控信息反馈至所述网络切片管理系统。

Description

网络切片及网络子切片的管理方法和系统 技术领域
本公开涉及(但不限于)长期演进网络技术领域。
背景技术
网络切片是5G网络架构的一个重要新特性，5G网络提供网络切片机制来服务于不同的应用业务，实现灵活的资源编排和调度，适应业务快速上线。对于网络切片的服务等级协议(Service-Level Agreement，简称SLA)监控是保障网络切片业务质量的必要内容，目前主要定义了时延、带宽、抖动、丢包率等指标。
对网络切片时延的监控，目前采用的是一种端到端(用户终端到核心网侧服务器端)测量方式，即，在核心网或者无线侧一端发数据包做往返时延的测量。但是，这种方式不能测量到网络切片内每一段子网络的时延，当网络切片的延时指标出现异常时，无法定位出导致异常的子网络段。
发明内容
本公开实施例提供了一种网络子切片管理方法，包括：接收网络切片管理系统发送的时延监控请求，所述时延监控请求包括目标网络切片所分解出的至少一个网络子切片的子切片信息；获取各所述网络子切片的时延监控信息；以及将所述时延监控信息反馈至所述网络切片管理系统。
本公开实施例提供了一种网络切片管理方法，包括：确定目标网络切片所分解出的至少一个网络子切片的子切片信息；根据所述至少一个网络子切片的子切片信息向网络子切片管理系统发送的时延监控请求；以及接收所述网络子切片管理系统反馈的各所述网络子切片的时延监控信息。
本公开实施例提供了一种网络子切片管理系统，包括：一个或多个第一处理器；以及第一存储装置，其上存储有一个或多个程序， 当所述一个或多个程序被所述一个或多个第一处理器执行时，所述一个或多个第一处理器实现根据本公开实施例的网络子切片管理方法。
本公开实施例提供了一种网络切片管理系统，包括：一个或多个第二处理器；以及第二存储装置，其上存储有一个或多个程序，当所述一个或多个程序被所述一个或多个第二处理器执行时，所述一个或多个第二处理器实现根据本公开实施例的网络切片管理方法。
附图说明
图1为本公开实施例提供的一种网络子切片管理方法的流程图；
图2为本公开实施例中步骤S102的实现流程图；
图3为本公开实施例提供的另一种网络子切片管理方法的流程图；
图4为本公开实施例中步骤S102'的实现流程图；
图5A为本公开实施例中步骤S102a的实现流程图；
图5B为本公开实施例中步骤S102b的实现流程图；
图5C为本公开实施例中步骤S102c的实现流程图；
图6为本公开实施例提供的一种网络切片管理方法的流程图；
图7为本公开实施例提供的另一种网络切片管理方法的流程图；以及
图8为本公开实施例提供的网络切片管理方法的信令图。
具体实施方式
为使本领域的技术人员更好地理解本公开的技术方案，下面结合附图对本公开提供的网络切片管理方法和系统进行详细描述。
在下文中将参考附图更充分地描述示例实施例，但是所述示例实施例可以以不同形式来体现且不应当被解释为限于本文阐述的实施例。反之，提供这些实施例的目的在于使本公开透彻和完整，并将使本领域技术人员充分理解本公开的范围。
本文所使用的术语仅用于描述特定实施例，且不意欲限制本公开。如本文所使用的，单数形式“一个”和“该”也意欲包括复数形 式，除非上下文另外清楚指出。还将理解的是，当本说明书中使用术语“包括”和/或“由……制成”时，指定存在所述特征、整体、步骤、操作、元件和/或组件，但不排除存在或添加一个或多个其他特征、整体、步骤、操作、元件、组件和/或其群组。
将理解的是，虽然本文可以使用术语第一、第二等来描述各种元件/指令/请求，但这些元件/指令/请求不应当受限于这些术语。这些术语仅用于区分一个元件/指令/请求和另一元件/指令/请求。
本公开的技术方案涉及网络切片管理(Network Slice Management Function，简称NSMF)系统和网络子切片管理(Network Slice Subnet Management Function，简称NSSMF)系统。NSMF系统作为网络切片编排和保障的系统,能够进行网络切片的生命周期管理及端到端的保障；NSSMF系统负责完成网络子切片的资源申请以及对网络子切片的生命周期进行管理。
在本公开中，目标网络切片可以为5G网络中任意一个待进行监控的网络切片，该目标网络切片按照实际监控需求，可分解为多个网络子切片。通过NSSMF系统，可对每一个网络子切片进行相应的管理。
本公开的技术方案可实现对网络切片进行分段精细化管理，并可根据需要获取到各段子网络的时延数据，以便于在网络切片的整体时延出现异常时，有效定位出导致异常的子网络段。
图1为本公开实施例提供的一种网络子切片管理方法的流程图，如图1所示，图1所示方法的执行主体为NSSMF系统，该方法包括步骤S101至S103。
在步骤S101，接收网络切片管理系统发送的时延监控请求。
NSMF系统提供并激活消息中心服务(例如，Kafka服务)，该服务用于供NSSMF系统定时上传时延数据。NSMF系统向NSSMF系统发送时延监控请求，以对目标网络切片进行时延监控。
时延监控请求包括目标网络切片所分解出的至少一个网络子切片的子切片信息。子切片信息包括子切片身份标识。在一些实施例中，时延监控请求还可以包括：针对各网络子切片所配置的测量任务(本公开中为时延测量任务)、性能数据粒度(例如，10秒)、反馈的 目标地址(包括NSMF系统所提供并激活的Kafka服务的地址和主题等)。
在步骤S102，获取各网络子切片的时延监控信息。
图2为本公开实施例中步骤S102的实现流程图，如图2所示，在一些实施例中，步骤S102包括：针对每一个网络子切片，执行如下步骤S1021至S1023。
在步骤S1021，创建时延测量任务到该网络子切片所对应的网元设备中。
在一些实施例中，创建到网元设备的时延测量任务可以包括测量任务类型(本公开中体现为该网元设备与目标对象之间的时延)、性能数据粒度(例如，10s)等。
在步骤S1022，接收网元设备反馈的时延监控数据。
在一些实施例中，时延监控数据可以包括该网元设备与目标对象之间的时延数据(上行时延和/或下行时延)。
在步骤S1023，根据时延监控数据生成该网络子切片的时延监控信息。
在一些实施例中，时延监控信息可以包括网络子切片的子切片身份标识、数据采集时间标识、时延监控数据等。
回到图1，在步骤S103，将时延监控信息反馈至网络切片管理系统。
NSSMF系统将采集到的时延监控信息反馈至NSMF系统中，以供NSMF系统进行存储，此时用户可通过NSMF系统来查阅目标网络切片所分解出的至少一个网络子切片的时延数据，以实现网对络切片进行分段精细化管理。
作为一种应用场景，当监测到目标网络切片的整体时延出现异常时，通过查阅各段网络子切片的时延，可有效定位出导致异常的子网络段。
图3为本公开实施例提供的另一种网络子切片管理方法的流程图，如图3所示，该网络子切片管理方法为基于图1所示网络切片管理方法的一种具体化实现方案，执行主体为NSSMF系统，该方法包括 步骤S101至S103'。
在步骤S101，接收网络切片管理系统发送的时延监控请求。
目标网络切片按照网络层级可以分解为：无线网子切片、传输网子切片和核心网子切片。此时，时延监控请求包括：无线网子切片的子切片信息、传输网子切片的子切片信息和核心网子切片的子切片信息。
在步骤S102'，分别获取无线网子切片、传输网子切片和核心网子切片的时延监控信息。
图4为本公开实施例中步骤S102'的实现流程图，如图4所示，步骤S102'包括步骤S102a至S102c。
在步骤S102a，获取无线网子切片的时延监控信息。
在步骤S102b，获取传输网子切片的时延监控信息。
在步骤S102c，获取核心网子切片的时延监控信息。
在本公开实施例中，步骤S102a、步骤S102b、步骤S102c三者可按顺序执行或者同时执行，本公开对三者的执行顺序不作限定。
在本公开实施例中，针对不同的网络层级，可将NSSMF系统划分为无线网NSSMF子系统、传输网NSSMF子系统和核心网NSSMF子系统，以分别执行上述步骤S102a、步骤S102b和步骤S102c。
图5A为本公开实施例中步骤S102a的实现流程图，如图5a所示，步骤S102a包括步骤S1021a至S1024a。
在步骤S1021a，创建无线网时延测量任务到该无线网子切片所对应的至少一个基站中。
无线网时延测量任务具体包括无线网上行时延测量任务和无线网下行时延测量任务。“无线网上行时延”具体是指用户终端(User Equipment，简称UE)到基站中的集中单元(Centralized Unit，简称CU)的上行时延；“无线网下行时延”具体是指CU到UE的下行时延。
具体地，在将无线网时延测量任务创建至基站中后，基站中的分布单元(Distributed Unit，简称DU)通过SDAP协议将测量报文发送至同一基站内的CU，CU将该测量报文发送至该基站下的UE，然 后UE再将该测量报文返回至CU，CU再通过SDAP协议将测量报文发送至DU。以CU接收到DU所发送的测量报文的时刻作为第一起始时刻，以UE接收到测量报文的时刻为第一结束时刻，以UE向CU发送测量报文的时刻作为第二起始时刻，以CU接收到UE所发送的测量报文作为第二结束时刻，无线网下行时延为第一结束时刻与第一起始时刻的时间差，无线网上行时延为第二结束时刻与第二起始时刻的时间差。需要说明的是，在测量某一个CU与某一个UE之间的时延过程中，可能会出现Harq重传，此时可以计算多次测量过程的平均值，以求得该CU与UE之间的上行时延和下行时延。
需要说明的是，无线网子切片中可以包括多个基站(无线网子切片中的网元设备)。本公开实施例中，无线网NSSMF子系统可在多个基站中通过随机采样或非随机采样的方式选取至少一个基站，并在所选取的基站内创建无线网时延测量任务。另外，每一个基站下可以对应多个UE，即，一个CU可以向多个UE发送测量报文，此时一个基站可向NSMF反馈多个无线网时延监控数据。本公开的技术方案对无线网子切片所包含的基站数量、每个基站所对应的UE数量均不作限定。
在步骤S1022a，接收各基站反馈的无线网时延监控数据。
无线网时延检测数据包括无线网上行时延数据和无线网下行时延数据。
在步骤S1023a，根据无线网上行时延数据确定出无线网子切片的上行时延值，并根据无线网下行时延数据确定出无线网子切片的下行时延值。
在一些实施例中，将全部无线网上行时延数据求平均，计算结果作为无线网子切片的上行时延值。
在一些实施例中，将全部无线网下行时延数据求平均，计算结果作为无线网子切片的下行时延值。
在步骤S1024a，基于无线网子切片的上行时延值和下行时延值，构建无线网子切片的时延监控信息。
在一些实施例中，无线网子切片的时延监控信息包括无线网子 切片的子切片身份标识、数据采集时间标识、无线网子切片的上行时延值和下行时延值。
图5B为本公开实施例中步骤S102b的实现流程图，如图5b所示，步骤S102b包括步骤S1021b至S1024b。
在步骤S1021b，创建传输网时延测量任务到该传输网子切片所对应的至少一个提供商边缘设备中。
传输网时延测量任务具体包括传输网上行时延测量任务和传输网下行时延测量任务。“传输网上行时延”具体是指提供商边缘设备(Provider Edge，简称PE)到位于核心网数据中心(Data Center，简称DC)侧的用户边缘设备(Customer Edge，简称CE)的上行时延；“传输网下行时延”具体是指CE到PE的下行时延。
具体地，在将传输网时延测量任务创建至PE中后，PE会通过TWAMP协议对PE与CE之间的上行/下行时延进行测量。基于TWAMP协议来检测两个终端之间的时延的具体过程，属于本领域的常规技术，此处不进行详细描述。
需要说明的是，传输网子切片中可以包括多个PE(传输网子切片中的网元设备)。本公开实施例中，传输网NSSMF子系统可在多个PE中通过随机采样或非随机采样的方式选择至少一个PE，并在选取的PE内创建传输网时延测量任务。当然，核心网DC侧的CE数量也可以为多个，因此一个PE可以对应一个或多个CE，即，一个PE可向传输网NSSMF子系统反馈多个传输网时延监控数据。本公开的技术方案对传输网子切片所包含的PE数量以及核心网子切片中DC侧所包含的CE的数量均不作限定。
在步骤S1022b，接收各提供商边缘设备反馈的传输网时延监控数据。
传输网时延检测数据包括传输网上行时延数据和传输网下行时延数据。
在步骤S1023b，根据传输网上行时延数据确定出传输网子切片的上行时延值，并根据传输网下行时延数据确定出传输网子切片的下行时延值。
在一些实施例中，在全部传输网上行时延数据中筛选出最大值，以作为传输网子切片的上行时延值。
在一些实施例中，在全部传输网下行时延数据中筛选出最大值，以作为传输网子切片的下行时延值。
在步骤S1024b，基于传输网子切片的上行时延值和下行时延值，构建传输网子切片的时延监控信息。
在一些实施例中，传输网子切片的时延监控信息包括传输网子切片的子切片身份标识、数据采集时间标识、传输网子切片的上行时延值和下行时延值。
图5C为本公开实施例中步骤S102c的一种实现流程图，如图5c所示，步骤S102c包括步骤S1021c至S1024c。
在步骤S1021c，创建核心网时延测量任务到该核心网子切片所对应的位于数据中心侧的至少一个用户边缘设备中。
核心网时延测量任务具体包括核心网上行时延测量任务和核心网下行时延测量任务。“核心网上行时延”具体是指CE到服务器的上行时延；“核心网下行时延”具体是指服务器到CE的下行时延。核心网上行时延可包括CE到用户面功能(User plane function，简称UPF)网元的上行时延以及UPF网元到服务器的上行时延；核心网下行时延可包括服务器到UPF网元的下行时延以及UPF网元到CE的下行时延。
具体地，在将核心网时延测量任务创建至CE中后，CE会通过TWAMP协议对CE与UPF之间的上行/下行时延、UPF与服务器之间的上行/下行时延进行测量。
在一些实施例中，服务器具体为IP多媒体子系统(IP Multimedia Subsystem，简称IMS)服务器。
需要说明的是，核心网子切片中可以包括多个CE(传输网子切片中的网元设备)和多个UPF网元。一个CE可向核心网NSSMF子系统反馈多个核心网时延监控数据。
在步骤S1022c，接收各用户边缘设备反馈的核心网时延监控数据。
核心网时延检测数据包括CE到UPF网元的第一上行时延数据、UPF网元到服务器的第二上行时延数据、服务器到UPF网元的第一下行时延数据、UPF网元到CE的第二下行时延数据。
在步骤S1023c，根据第一上行时延数据确定出核心网子切片内数据中心侧到用户面功能侧的上行时延值，根据第二上行时延数据确定出核心网子切片内用户面功能侧到服务器的上行时延值，根据第一下行时延数据确定出服务器到核心网子切片内用户面功能侧的下行时延值，并且根据第二下行时延数据确定出核心网子切片内用户面功能侧到数据中心侧的下行时延值。
在一些实施例中，在全部第一上行时延数据中筛选出最大值，以作为核心网子切片内DC侧到UPF侧的上行时延值。
在一些实施例中，在全部第二上行时延数据中筛选出最大值，以作为核心网子切片内UPF侧到服务器的上行时延值。
在一些实施例中，在全部第一下行时延数据中筛选出最大值，以作为服务器到核心网子切片内UPF侧的下行时延值。
在一些实施例中，在全部第二下行时延数据中筛选出最大值，以作为核心网子切片内UPF侧到DC侧的下行时延值。
在步骤S1024c，基于核心网子切片内数据中心侧到用户面功能侧的上行时延值、核心网子切片内用户面功能侧到服务器的上行时延值、服务器到核心网子切片内用户面功能侧的下行时延值和核心网子切片内用户面功能侧到数据中心侧的下行时延值，构建核心网子切片的时延监控信息。
在一些实施例中，传输网子切片的时延监控信息包括核心网子切片的子切片身份标识、数据采集时间标识、DC侧与UPF侧之间的上行时延值和下行时延值、UPF侧与服务器之间的上行时延值和下行时延值。
当然，传输子切片的时延监控信息也可以包括传输网子切片的切片上行时延值(大小等于DC侧到UPF侧的上行时延值与UPF侧到服务器的上行时延值之和)和传输网子切片的切片下行时延值(大小等于服务器到UPF侧的下行时延值与UPF侧到DC侧的下行时延值之 和)。
回到图3，在步骤S103'、将无线网子切片、传输网子切片和核心网子切片的时延监控信息反馈至网络切片管理系统。
本公开实施例的技术方案可实现对目标网络切片中的无线网子切片、传输网子切片和核心网子切的时延进行分段测量，以便于进行精细化管理。
图6为本公开实施例提供的一种网络切片管理方法的流程图，如图6所示，该方法的执行主体为NSMF系统，该方法包括步骤S201至S203。
在步骤S201，确定目标网络切片所分解出的至少一个网络子切片的子切片信息。
NSMF系统存储有其所管辖的各网络切片的切片信息。网络切片的切片信息中记载有该网络切片所分解出的各网络子切片的子切片信息。子切片信息包括子切片身份标识。
NSMF系统可通过查询自身数据库以查询出目标网络切片所对应的全部网络子切片的子切片信息，然后根据实际需要从查询出的全部子切片信息筛选出至少一个子切片信息，以供后续对该子切片信息所对应的网络子切片的时延进行监控。
在一些实施例中，可对目标网络切片所分解出的全部网络子切片的时延进行监控。
作为一种应用场景，响应于目标切片网络完成创建，NSMF系统开始执行上述步骤S201。作为另一种应用场景，相应于用户的监控需求，NSMF系统开始执行上述步骤S201。
在步骤S202，根据至少一个网络子切片的子切片信息向网络子切片管理系统发送的时延监控请求。
根据步骤S201所确定出的网络子切片的子切片信息生成时延监控请求，并向NSSMF系统发送该时延监控请求，以供NSSMF系统对相应网络子切片的时延进行采集。
在步骤S203，接收网络子切片管理系统反馈的各网络子切片的时延监控信息。
NSMF系统接收NSSMF系统反馈的各网络子切片的时延监控信息，并进行存储，以便于用户进行查询。
图7为本公开实施例提供的另一种网络切片管理方法的流程图，如图7所示，该网络切片管理方法为基于图6所示网络切片管理方法的一种具体化实现方案，执行主体为NSMF系统，该方法包括步骤S201'至S205'。
在步骤S201'，确定目标网络切片所分解出的无线网子切片、传输网子切片和核心网子切片的子切片信息。
子切片信息包括子切片身份标识。
在步骤S202'，根据无线网子切片、传输网子切片和核心网子切片的子切片信息向网络子切片管理系统发送的时延监控请求。
时延监控请求包括无线网子切片的子切片信息、传输网子切片的子切片信息和核心网子切片的子切片信息。
在步骤S203'，接收网络子切片管理系统反馈的无线网子切片、传输网子切片和核心网子切片的时延监控信息。
网络子切片管理系统获取无线网子切片、传输网子切片和核心网子切片的时延监控信息的过程可参见前述实施例中的内容，此处不再赘述。
在步骤S204'，检测网络子切片管理系统反馈时延监控信息是否齐备。
具体地，当NSMF接收到NSSMF反馈的无线网子切片、传输网子切片和核心网子切片的时延监控信息时，则检测出NSSMF反馈的时延监控信息齐备，此后执行步骤S205'；否则，继续执行步骤S203'。
在步骤S205'，根据无线网子切片的时延监控信息、传输网子切片的时延监控信息和核心网子切片的时延监控信息，计算目标网络切片的整体时延值。
目标网络切片的整体时延值包括目标网络切片的整体上行时延和整体下行时延。
目标网络切片的整体上行时延等于无线网子切片的上行时延、传输网子切片的上行时延和核心网子切片的上行时延的和；目标网络 切片的整体下行时延等于无线网子切片的下行时延、传输网子切片的下行时延和核心网子切片的下行时延的和。
图8为本公开实施例提供的网络切片管理方法的信令图，如图8所示，包括步骤BZ01至BZ09。
在步骤BZ01，NSMF系统确定目标网络切片所分解出的各网络子切片的子切片身份标识。
在步骤BZ02，NSMF系统根据各网络子切片的子切片身份标识向NSSMF系统发送的时延监控请求。
在步骤BZ03，NSSMF系统接收NSMF系统发送的时延监控请求。
在步骤BZ04，NSSMF创建时延测量任务到相应网络子切片所对应的网元设备中。
在步骤BZ05，NSSMF系统根据网元设备反馈的时延数据，生成各网络子切片的时延监控信息。
在步骤BZ06，NSSMF系统向NSMF系统反馈各网络子切片的时延监控信息。
在步骤BZ07，NSMF系统接收各网络子切片的时延监控信息并进行存储。
在步骤BZ08，NSMF系统检测针对目标网络切片的时延监控信息是否完备。
当目标网络切片的时延监控信息完备时，则执行步骤BZ09；否则，继续执行步骤BZ07。
在步骤BZ09，NSMF系统计算目标网络切片的整体时延。
对于上述步骤BZ01至BZ09的具体描述可参见前述实施例中相应内容，此处不再赘述。
本公开实施例还提供了一种网络子切片管理系统，包括一个或多个第一处理器以及第一存储装置，第一存储装置上存储有一个或多个程序；当该一个或多个程序被该一个或多个第一处理器执行时，该一个或多个第一处理器实现如前述图1和图3所示实施例提供的网络子切片管理方法。
本公开实施例还提供了一种网络切片管理系统，包括一个或多 个第二处理器以及第二存储装置，第二存储装置上存储有一个或多个程序；当该一个或多个程序被该一个或多个第二处理器执行时，该一个或多个第二处理器实现如前述图6和图7实施例提供的网络切片管理方法。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、装置中的功能模块/单元可以被实施为软件、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。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机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、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(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。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、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。
除非另外限定，否则本文所用的所有术语(包括技术和科学术语)的含义与本领域普通技术人员通常理解的含义相同。还将理解，诸如那些在常用字典中限定的那些术语应当被解释为具有与其在相关技术以及本公开的背景下的含义一致的含义，且将不解释为具有理想化或过度形式上的含义，除非本文明确如此限定。

Claims (15)

  1. 一种网络子切片管理方法，包括：
    接收网络切片管理系统发送的时延监控请求，所述时延监控请求包括目标网络切片所分解出的至少一个网络子切片的子切片信息；
    获取各所述网络子切片的时延监控信息；以及
    将所述时延监控信息反馈至所述网络切片管理系统。
  2. 根据权利要求1所述的方法，其中，获取各所述网络子切片的时延监控信息的步骤包括：
    针对每一个所述网络子切片，执行如下步骤：
    创建时延测量任务到该网络子切片所对应的网元设备中；
    接收所述网元设备反馈的时延监控数据；以及
    根据所述时延监控数据生成该网络子切片的时延监控信息。
  3. 根据权利要求1所述的方法，其中，所述目标网络切片分解为无线网子切片、传输网子切片和核心网子切片，
    所述时延监控请求包括：所述无线网子切片的子切片信息、所述传输网子切片的子切片信息和所述核心网子切片的子切片信息，并且，获取各所述网络子切片的时延监控信息的步骤包括：
    获取所述无线网子切片的时延监控信息；
    获取所述传输网子切片的时延监控信息；以及
    获取所述核心网子切片的时延监控信息。
  4. 根据权利要求3所述的方法，其中，获取所述无线网子切片的时延监控信息的步骤包括：
    创建无线网时延测量任务到该无线网子切片所对应的至少一个基站中；
    接收各所述基站反馈的无线网时延监控数据，所述无线网时延检测数据包括无线网上行时延数据和无线网下行时延数据；
    根据所述无线网上行时延数据确定出所述无线网子切片的上行时延值，并且根据所述无线网下行时延数据确定出所述无线网子切片的下行时延值；以及
    基于所述无线网子切片的上行时延值和下行时延值，构建所述无线网子切片的时延监控信息。
  5. 根据权利要求4所述的方法，其中，根据所述无线网上行时延数据确定出所述无线网子切片的上行时延值的步骤包括：
    将全部所述无线网上行时延数据求平均，计算结果作为所述无线网子切片的上行时延值，并且
    根据所述无线网下行时延数据确定出所述无线网子切片的下行时延值的步骤包括：
    将全部所述无线网下行时延数据求平均，计算结果作为所述无线网子切片的下行时延值。
  6. 根据权利要求3所述的方法，其中，获取所述传输网子切片的时延监控信息的步骤包括：
    创建传输网时延测量任务到该传输网子切片所对应的至少一个提供商边缘设备中；
    接收各所述提供商边缘设备反馈的传输网时延监控数据，所述传输网时延检测数据包括传输网上行时延数据和传输网下行时延数据；
    根据所述传输网上行时延数据确定出所述传输网子切片的上行时延值，并且根据所述传输网下行时延数据确定出所述传输网子切片的下行时延值；以及
    基于所述传输网子切片的上行时延值和下行时延值，构建所述传输网子切片的时延监控信息。
  7. 根据权利要求6所述的方法，其中，根据所述传输网上行时延数据确定出所述传输网子切片的上行时延值的步骤包括：
    在全部所述传输网上行时延数据中筛选出最大值，以作为所述传输网子切片的上行时延值，并且
    根据所述传输网下行时延数据确定出所述传输网子切片的下行时延值的步骤包括：
    在全部所述传输网下行时延数据中筛选出最大值，以作为所述传输网子切片的下行时延值。
  8. 根据权利要求3所述的方法，其中，获取所述核心网子切片的时延监控信息的步骤包括：
    创建核心网时延测量任务到该核心网子切片所对应的位于数据中心侧的至少一个用户边缘设备中；
    接收各所述用户边缘设备反馈的核心网时延监控数据，所述核心网时延检测数据包括：所述用户边缘设备到用户面功能网元的第一上行时延数据、所述用户面功能网元到服务器的第二上行时延数据、所述服务器到所述用户面功能网元的第一下行时延数据、以及所述用户面功能网元到所述用户边缘设备的第二下行时延数据；
    根据所述第一上行时延数据确定出所述核心网子切片内数据中心侧到用户面功能侧的上行时延值，根据所述第二上行时延数据确定出所述核心网子切片内所述用户面功能侧到服务器的上行时延值，根据所述第一下行时延数据确定出服务器到所述核心网子切片内用户面功能侧的下行时延值，并且根据所述第二下行时延数据确定出所述核心网子切片内所述用户面功能侧到数据中心侧的下行时延值；以及
    基于所述核心网子切片内数据中心侧到用户面功能侧的上行时延值、所述核心网子切片内所述用户面功能侧到服务器的上行时延值、服务器到所述核心网子切片内用户面功能侧的下行时延值和所述核心网子切片内所述用户面功能侧到数据中心侧的下行时延值，构建所述核心网子切片的时延监控信息。
  9. 根据权利要求8所述的方法，其中，根据所述第一上行时延数据确定出所述核心网子切片内数据中心侧到用户面功能侧的上行 时延值的步骤包括：
    在全部所述第一上行时延数据中筛选出最大值，以作为所述核心网子切片内数据中心侧到用户面功能侧的上行时延值；
    根据所述第二上行时延数据确定出所述核心网子切片内所述用户面功能侧到服务器的上行时延值的步骤包括：
    在全部所述第二上行时延数据中筛选出最大值，以作为所述核心网子切片内所述用户面功能侧到服务器的上行时延值；
    根据所述第一下行时延数据确定出服务器到所述核心网子切片内用户面功能侧的下行时延值的步骤包括：
    在全部所述第一下行时延数据中筛选出最大值，以作为服务器到所述核心网子切片内用户面功能侧的下行时延值；
    根据所述第二下行时延数据确定出所述核心网子切片内所述用户面功能侧到数据中心侧的下行时延值的步骤具体包括：
    在全部所述第二下行时延数据中筛选出最大值，以作为所述核心网子切片内所述用户面功能侧到数据中心侧的下行时延值。
  10. 一种网络切片管理方法，包括：
    确定目标网络切片所分解出的至少一个网络子切片的子切片信息；
    根据所述至少一个网络子切片的子切片信息向网络子切片管理系统发送的时延监控请求；以及
    接收所述网络子切片管理系统反馈的各所述网络子切片的时延监控信息。
  11. 根据权利要求10所述的管理方法，其中，所述目标网络切片分解为无线网子切片、传输网子切片和核心网子切片，并且
    所述时延监控请求包括：所述无线网子切片的子切片信息、所述传输网子切片的子切片信息和所述核心网子切片的子切片信息。
  12. 根据权利要求11所述的管理方法，其中，在接收所述网络 子切片管理系统反馈的各所述网络子切片的时延监控信息的步骤之后，还包括：
    根据所述无线网子切片的时延监控信息、所述传输网子切片的时延监控信息和所述核心网子切片的时延监控信息，计算所述目标网络切片的整体时延值。
  13. 根据权利要求12所述的管理方法，其中，在根据所述无线网子切片的时延监控信息、所述传输网子切片的时延监控信息和所述核心网子切片的时延监控信息，计算所述目标网络切片的整体时延值的步骤之前，还包括：
    检测所述网络子切片管理系统反馈时延监控信息是否齐备，并且
    响应于检测出所述网络子切片管理系统反馈时延监控信息齐备，执行根据所述无线网子切片的时延监控信息、所述传输网子切片的时延监控信息和所述核心网子切片的时延监控信息，计算所述目标网络切片的整体时延值的步骤。
  14. 一种网络子切片管理系统，包括：
    一个或多个第一处理器；以及
    第一存储装置，其上存储有一个或多个程序，
    其中，当所述一个或多个程序被所述一个或多个第一处理器执行时，所述一个或多个第一处理器实现如权利要求1至9中任一所述的网络子切片管理方法。
  15. 一种网络切片管理系统，包括：
    一个或多个第二处理器；以及
    第二存储装置，其上存储有一个或多个程序，
    其中，当所述一个或多个程序被所述一个或多个第二处理器执行时，使得所述一个或多个第二处理器实现如权利要求10至13中任一所述的网络切片管理方法。
PCT/CN2020/115902 2019-09-27 2020-09-17 网络切片及网络子切片的管理方法和系统 Ceased WO2021057591A1 (zh)

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