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CN106549806A - A kind of network section manager and its management method - Google Patents

A kind of network section manager and its management method Download PDF

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CN106549806A
CN106549806A CN201610949216.1A CN201610949216A CN106549806A CN 106549806 A CN106549806 A CN 106549806A CN 201610949216 A CN201610949216 A CN 201610949216A CN 106549806 A CN106549806 A CN 106549806A
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CN106549806B (en
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粟欣
曾捷
容丽萍
龚金金
赵明
许希斌
王京
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Tsinghua University
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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
    • 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
    • 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
    • H04L41/14Network analysis or design
    • H04L41/145Network analysis or design involving simulating, designing, planning or modelling of a network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/78Architectures of resource allocation

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

Abstract

本发明提出一种网络切片管理器及其管理方法,属于通信技术领域,该管理器包括创建模块、扩容模块、删除模块、用户请求表、网络切片参数表和网络切片状态表,以及多个外部接口;其中,创建模块分别与用户请求表、网络切片参数表相连;扩容、删除模块均分别与网络切片参数表、网络切片状态表相连;创建模块通过外部接口与核心网、接入网、物理资源池和用户连接,扩容模块通过外部接口与现存网络切片和物理资源池相连,删除模块通过外部接口与现存网络切片相连;该管理器的管理方法包括网络切片的创建、扩容及删除三个部分;本发明可根据用户需求,创建出满足需求的网络切片,有效地将网络切片的利用率最大化,从而提高网络资源利用率。The present invention proposes a network slicing manager and its management method, which belong to the field of communication technology. interface; among them, the creation module is connected with the user request table and the network slicing parameter table respectively; the capacity expansion and deletion modules are respectively connected with the network slicing parameter table and the network slicing status table; the creation module is connected with the core network, access network, physical The resource pool is connected to the user, the expansion module is connected to the existing network slice and the physical resource pool through the external interface, and the deletion module is connected to the existing network slice through the external interface; the management method of the manager includes three parts: the creation, expansion and deletion of the network slice ; According to user requirements, the present invention can create network slices that meet the requirements, effectively maximizing the utilization rate of network slices, thereby improving the utilization rate of network resources.

Description

一种网络切片管理器及其管理方法A network slice manager and its management method

技术领域technical field

本发明属于通信技术领域,特别涉及一种网络切片管理器及其管理方法。The invention belongs to the technical field of communication, and in particular relates to a network slice manager and a management method thereof.

背景技术Background technique

在未来的物联网时代,人与人、人与物、物与物之间的连接会出现各种丰富多样的通信需求。未来网络应用场景种类繁多,不同应用场景对速度、容量、覆盖率和安全性等都有不同的要求。如果针对每种业务都建立一个特定的网络,虽然可以很好的满足各种场景的需求,但成本太高难以实现;如果将所有不同的业务需求都承载到相同的同一网络中,则会因为业务需求的较大差异性导致业务体验的下降。5G网络应以更灵活的方式构建,而运营商则可以对速度、容量、覆盖率和安全性等网络性能指标进行灵活调整和组合,从而满足不同应用的个性化需求。因此,NGMN(Next Generation Mobile Networks)提出网络切片的技术概念,3GPP(3rd Generation Partnership Project)也将网络切片作为下一代网络关键技术之一。In the future Internet of Things era, there will be a variety of communication needs in the connection between people and people, people and things, and things and things. There are many types of future network application scenarios, and different application scenarios have different requirements for speed, capacity, coverage, and security. If a specific network is established for each business, although it can meet the needs of various scenarios, the cost is too high to realize; if all different business requirements are carried on the same network, it will be because Large differences in business requirements lead to a decline in business experience. 5G networks should be built in a more flexible manner, and operators can flexibly adjust and combine network performance indicators such as speed, capacity, coverage, and security to meet the individual needs of different applications. Therefore, NGMN (Next Generation Mobile Networks) proposes the technical concept of network slicing, and 3GPP (3rd Generation Partnership Project) also regards network slicing as one of the key technologies of next-generation networks.

网络切片(Network Slice,NS)是由一组网络功能(Network Function,NF)构成的完整的实例化逻辑网络,旨在为用户提供一系列其所需的网络服务。在相同物理基础设施上,利用软件定义网络(Software Defined Network,SDN)和网络功能虚拟化(NetworkFunction Virtualization,NFV)等技术,针对不同的应用场景按需创建设定的网络切片,达到网络资源利用的最优化。Network slice (Network Slice, NS) is a complete instantiated logical network composed of a set of network functions (Network Function, NF), which aims to provide users with a series of required network services. On the same physical infrastructure, use software-defined network (Software Defined Network, SDN) and network function virtualization (Network Function Virtualization, NFV) and other technologies to create set network slices on demand for different application scenarios to achieve network resource utilization optimization.

网络切片技术作为下一代网络关键技术之一,其意在使用最优化的资源分配更高效地解决垂直业务(例如对带宽要求较高的高清视频业务、对时延要求较高的游戏业务等等)。对于未来网络,网络切片将有多种类型,而其中最基本的类型则是对应于5G网络下三大应用场景的增强型移动宽带型切片、超高可靠与低延迟型切片和大规模机器类通信型切片。As one of the key technologies of next-generation networks, network slicing technology aims to use optimized resource allocation to solve vertical services more efficiently (such as high-definition video services with high bandwidth requirements, game services with high latency requirements, etc. ). For future networks, there will be many types of network slicing, and the most basic types are enhanced mobile broadband slicing, ultra-high reliability and low latency slicing, and large-scale machine-based slicing corresponding to the three major application scenarios under 5G networks. Communication slices.

网络切片由与应用场景相适应的网络功能和与该网络功能所对应的物理资源构成。网络功能存在于接入网与核心网,其中有些网络功能只能存在于接入网或核心网中,而有些网络功能既可以存在于接入网也可以存在于核心网中。不同的网络功能需要对应的物理资源来支持,而物理资源存在于物理资源池中。此外,网络切片之间还可能存在拓扑关系,存在拓扑关系的切片之间可以进行物理资源的共享。目前提出的对网络切片的管理方法,主要从技术层面对网络切片进行描述,并没有完全基于用户的需求出发,也不能达到资源利用的最优化。Network slicing consists of network functions adapted to application scenarios and physical resources corresponding to the network functions. Network functions exist in both the access network and the core network. Some network functions can only exist in the access network or the core network, while some network functions can exist in both the access network and the core network. Different network functions need to be supported by corresponding physical resources, and the physical resources exist in the physical resource pool. In addition, there may be a topological relationship between network slices, and physical resources can be shared between slices with topological relationships. The currently proposed management methods for network slicing mainly describe network slicing from the technical level, which is not completely based on user needs, nor can it achieve the optimization of resource utilization.

发明内容Contents of the invention

本发明的目的是为了克服已有技术的不足之处,提出一种网络切片管理器及其管理方法,本发明可以实时根据用户需求的变化做出相应调整,达到资源利用最优化,实现对网络切片的完善管理。The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a network slice manager and its management method. The present invention can make corresponding adjustments in real time according to changes in user needs, achieve resource utilization optimization, and realize network slice management. Perfect management of slices.

本发明提出的一种网络管理器,其特征在于,包括创建模块、扩容模块、删除模块、用户请求表、网络切片参数表和网络切片状态表,以及多个外部接口;其中,创建模块分别与用户请求表、网络切片参数表相连;扩容模块分别与网络切片参数表、网络切片状态表相连;删除模块分别与网络切片参数表、网络切片状态表相连;创建模块通过外部接口与核心网、接入网、物理资源池和用户连接,扩容模块通过外部接口与已存在的网络切片和物理资源池相连,删除模块通过外部接口与已存在的网络切片相连。A network manager proposed by the present invention is characterized in that it includes a creation module, an expansion module, a deletion module, a user request table, a network slicing parameter table, a network slicing status table, and a plurality of external interfaces; The user request table and the network slice parameter table are connected; the expansion module is connected with the network slice parameter table and the network slice state table respectively; the deletion module is connected with the network slice parameter table and the network slice state table respectively; Network access, physical resource pool and user connection, the expansion module is connected to the existing network slice and physical resource pool through the external interface, and the deletion module is connected to the existing network slice through the external interface.

所述创建模块用于网络切片的创建;创建模块接收用户发送的网络切片申请请求后,对包括用户申请网络切片的业务类型和申请时间在内的申请信息进行收集并存储至用户请求表中,所述申请信息根据设定周期定时由创建模块更新;创建模块根据前一周期收集的申请信息分析出用户所需网络切片的各项参数,主要包括网络切片类型、网络切片中包含的网络功能、网络切片的创建时间、网络切片的预测持续时间和网络切片的用户容量并将这些参数存储至网络切片参数表中,根据网络切片参数利用核心网或接入网中相应的网络功能以及物理资源池中相应的物理资源创建网络切片,或者向用户反馈网络切片创建失败的信息;其中,同一业务类型的网络切片类型及该网络切片包含的网络功能唯一确定;创建时间根据本次和上次该网络切片的申请时间被创建模块更新,作为下次创建该类网络切片的创建时间。The creation module is used to create a network slice; after the creation module receives the network slice application request sent by the user, it collects the application information including the service type and application time of the user's application network slice and stores it in the user request table, The application information is regularly updated by the creation module according to the set cycle; the creation module analyzes the parameters of the network slice required by the user according to the application information collected in the previous period, mainly including the network slice type, the network functions contained in the network slice, The creation time of network slices, the predicted duration of network slices, and the user capacity of network slices are stored in the network slice parameter table, and the corresponding network functions and physical resource pools in the core network or access network are used according to the network slice parameters Create a network slice for the corresponding physical resources in the network, or feed back information to the user that the creation of the network slice failed; among them, the network slice type of the same service type and the network functions contained in the network slice are uniquely determined; the creation time is based on the current and last time the network slice The application time of the slice is updated by the creation module as the creation time of the next creation of this type of network slice.

所述扩容模块用于网络切片的扩容;扩容模块实时获取每个现存网络切片的拥塞状态、该网络切片的实时用户连接量以及每个现存网络切片的拓扑关系并将这些状态信息存储至网络切片状态表中;扩容模块一旦检测到某一现存网络切片发生拥塞时,将从与该网络切片存在拓扑关系的其他网络切片或者物理资源池中获取适应于该网络切片的物理资源,对发生拥塞的网络切片进行扩容;同时,扩容模块会将发生拥塞的该类型网络切片的用户容量提升5%~15%,满足用户的业务需求,提升后的用户容量作为下次创建相同类型网络切片的用户容量。The capacity expansion module is used for network slice expansion; the capacity expansion module obtains the congestion state of each existing network slice, the real-time user connection volume of the network slice, and the topology relationship of each existing network slice in real time, and stores these state information to the network slice In the state table; once the capacity expansion module detects that an existing network slice is congested, it will obtain physical resources suitable for the network slice from other network slices or physical resource pools that have a topology relationship with the network slice. Network slices are expanded; at the same time, the expansion module will increase the user capacity of this type of network slice with congestion by 5% to 15% to meet the user's business needs. The increased user capacity will be used as the user capacity for the next creation of the same type of network slice .

所述删除模块用于网络切片的删除;网络切片创建以后,当网络切片的持续时间达到预测持续时间的75%~85%后、且连续预测持续时间的5%时间段内该网络切片的用户连接量均为零,删除模块则删除该网络切片、释放其内部的物理资源并删除该网络切片对应的状态信息;删除模块根据当前被删除网络切片的实际持续时间对该类型网络切片的预测持续时间进行更新,便于下次创建同类型网络片切片时使用。The deletion module is used to delete the network slice; after the network slice is created, when the duration of the network slice reaches 75% to 85% of the predicted duration, and the users of the network slice within 5% of the continuously predicted duration If the number of connections is zero, the deletion module deletes the network slice, releases its internal physical resources, and deletes the state information corresponding to the network slice; the deletion module predicts the duration of this type of network slice according to the actual duration of the currently deleted network slice. The time will be updated to facilitate the next creation of the same type of network slice.

所述网络切片管理器的管理方法,其特征在于,包括网络切片的创建、扩容及删除三个部分;创建模块收集用户的网络切片请求信息,为网络切片的创建做准备,创建模块通过用户请求信息分析出需要创建的网络切片类型及其参数后,创建出网络切片;当扩容模块检测到网络切片发生拥塞时,则会对其进行扩容,即提升该网络切片的用户容量;当满足设定的时间要求而没有用户接入已存在的网络切片,删除模块则删除该网络切片并释放其内部的物理资源。The management method of the network slice manager is characterized in that it includes three parts: creation, expansion and deletion of the network slice; the creation module collects the user's network slice request information to prepare for the creation of the network slice, and the creation module passes the user request After the information analyzes the network slice type and its parameters to be created, the network slice is created; when the expansion module detects that the network slice is congested, it will expand its capacity, that is, increase the user capacity of the network slice; The time requirement and no user accesses the existing network slice, the deletion module deletes the network slice and releases its internal physical resources.

所述网络切片的创建方法,具体包括以下步骤:The method for creating the network slice specifically includes the following steps:

(1.1)用户根据业务需求,向网络切片管理器的创建模块发送申请网络切片请求;(1.1) The user sends a network slicing application request to the creation module of the network slicing manager according to business requirements;

(1.2)创建模块收到用户发送的申请网络切片请求后,将包括该网络切片请求的业务类型和申请时间在内的申请信息收集并存储在用户请求表中;创建模块按照设定周期自动更新用户请求表中的信息,并根据上一周期存储的用户申请信息对本周期的用户申请信息进行预测;(1.2) After the creation module receives the application network slicing request sent by the user, it collects and stores the application information including the service type and application time of the network slicing request in the user request table; the creation module automatically updates according to the set period Information in the user request table, and predict the user application information of this cycle based on the user application information stored in the previous cycle;

(1.3)创建模块对不同业务类型的用户申请进行分类,分析出创建不同业务类型网络切片所需要的网络功能;创建模块还分别统计不同业务类型申请时间的分布情况,根据不同业务类型申请时间分布密集的时间段来确定各个网络切片的创建时间和预测持续时间T,以最大的单小时内用户申请数作为用户容量;创建模块将与业务类型对应的网络切片类型、网络切片中包含的网络功能、网络切片的创建时间、网络切片的预测持续时间和网络切片的用户容量存储在网络切片参数表中;(1.3) The creation module classifies the user applications of different service types, and analyzes the network functions required to create network slices of different service types; the creation module also counts the distribution of application time for different service types, and the distribution of application time according to different service types Intensive time periods are used to determine the creation time and forecast duration T of each network slice, and the maximum number of user applications in a single hour is used as the user capacity; the creation module uses the network slice type corresponding to the business type, and the network functions contained in the network slice , the creation time of the network slice, the predicted duration of the network slice, and the user capacity of the network slice are stored in the network slice parameter table;

(1.4)根据网络切片参数表中的参数,创建模块查找核心网和接入网中是否存在相应的网络功能,根据用户容量判断物理资源池中的资源是否充足:如果存在相应网络功能和充足的物理资源,则创建模块按照网络切片参数表中的参数创建网络切片;如果不存在相应网络功能或物理资源不足则创建失败,创建失败后创建模块向用户反馈失败信息,令用户放弃该业务的请求;(1.4) According to the parameters in the network slicing parameter table, create a module to find whether there are corresponding network functions in the core network and access network, and judge whether the resources in the physical resource pool are sufficient according to the user capacity: if there are corresponding network functions and sufficient For physical resources, the creation module creates network slices according to the parameters in the network slice parameter table; if there is no corresponding network function or the physical resources are insufficient, the creation fails. After the creation fails, the creation module feeds back failure information to the user, making the user give up the request for the service ;

(1.5)创建模块再次收到与已经记录在网络切片参数表中的网络切片类型相应的用户请求时,重新统计其申请时间分布密集的时间段,分析出新的创建时间,并与网络切片参数表中原来的创建时间取平均值来更新创建时间,作为下一次创建同类型网络切片的创建时间。(1.5) When the creation module receives another user request corresponding to the network slicing type recorded in the network slicing parameter table, it will re-count the time period in which the application time is densely distributed, analyze the new creation time, and compare it with the network slicing parameters The original creation time in the table is averaged to update the creation time, which is used as the creation time of the next creation of the same type of network slice.

所述网络切片的扩容方法,具体包括以下步骤:The expansion method of the network slicing specifically includes the following steps:

(2.1)扩容模块实时获取所有现存网络切片的状态信息,并将该状态信息存储在网络切片状态表中;当检测到网络切片发生拥塞时,扩容模块获取与该网络切片存在拓扑关系的其他网络切片的用户连接量,如果存在资源充沛的其他网络切片,则将该网络切片的物理资源共享给发生拥塞的网络切片;如果不存在资源充沛的网络切片,则进入步骤(2.2);(2.1) The expansion module obtains the state information of all existing network slices in real time, and stores the state information in the network slice state table; when congestion is detected in the network slice, the expansion module obtains other networks that have a topological relationship with the network slice If there are other network slices with abundant resources, share the physical resources of the network slice with the congested network slice; if there is no network slice with abundant resources, go to step (2.2);

(2.2)扩容模块从物理资源池获取适应于该网络切片的物理资源,对该网络切片扩容;如果物理资源池中相应资源不足,则扩容失败;扩容失败后,扩容模块会阻止用户接入到该拥塞的网络切片上,直到该网络切片的用户连接量低于用户容量的70%~80%时才允许用户接入;(2.2) The expansion module acquires physical resources suitable for the network slice from the physical resource pool, and expands the network slice; if the corresponding resources in the physical resource pool are insufficient, the expansion fails; after the expansion fails, the expansion module prevents users from accessing the On the congested network slice, user access is not allowed until the user connection volume of the network slice is lower than 70% to 80% of the user capacity;

(2.3)一旦检测到某个网络切片发生一次拥塞时,无论扩容成功与否,扩容模块都会将网络切片参数表中该类型网络切片的用户容量提升5%~15%,作为下次创建同类型网络切片的用户容量。(2.3) Once a congestion occurs in a certain network slice, regardless of whether the expansion is successful or not, the expansion module will increase the user capacity of this type of network slice in the network slice parameter table by 5% to 15%, as the next time to create the same type User capacity for network slices.

所述网络切片的删除方法,具体包括以下步骤:The method for deleting the network slice specifically includes the following steps:

(3.1)当网络切片持续时间t1达到预测持续时间T的75%~85%后,若连续时间t2内删除模块检测到网络切片状态表中该类型网络切片的用户连接量始终为零,则删除模块删除该网络切片并释放其内部的物理资源,同时删除网络切片状态表中该网络切片对应的所有信息;所述连续时间t2为预测持续时间T的5%;(3.1) When the network slicing duration t1 reaches 75% to 85% of the predicted duration T, if the deletion module detects that the user connections of this type of network slice in the network slicing state table are always zero in the continuous time t2, then delete The module deletes the network slice and releases its internal physical resources, and deletes all information corresponding to the network slice in the network slice state table; the continuous time t2 is 5% of the predicted duration T;

(3.2)删除模块记录每个网络切片每次的实际持续时间T1,如果实际的持续时间T1与预测持续时间T相差不超过预测持续时间T的5%,则下次该网络切片依旧维持原预测持续时间T;如果实际的持续时间T1与预测持续时间T相差超过预测持续时间T的5%,则进入步骤(3.3);(3.2) The deletion module records the actual duration T1 of each network slice each time. If the difference between the actual duration T1 and the predicted duration T is not more than 5% of the predicted duration T, the network slice will still maintain the original prediction next time. Duration T; If the actual duration T1 differs from the predicted duration T by 5% of the predicted duration T, then enter step (3.3);

(3.3)删除模块计算出预测持续时间T与实际的持续时间T1的平均值T2,并将网络切片参数表中该网络切片的原预测持续时间修改为该平均值T2,作为下一次创建该类型网络切片的预测持续时间。(3.3) The deletion module calculates the average value T2 of the predicted duration T and the actual duration T1, and modifies the original predicted duration of the network slice in the network slice parameter table to the average value T2, as the next creation of this type Prediction duration for network slices.

本发明的特点及有益效果:Features and beneficial effects of the present invention:

本发明在网络切片创建流程中,添加了记录用户业务申请和利用申请信息分析创建网络切片相应参数的步骤。该方法可以根据用户需求,创建出满足需求的网络切片,有效地将网络切片的利用率最大化,从而提高网络资源利用率。在网络切片创建完成后,网络切片管理器动态地根据用户实时连接量对网络切片进行扩容操作,增强灵活性,可以有效的应对某种突发事件,满足更多用户的需求。在删除阶段,增加了调整网络切片持续时间功能,可以根据实际连接情况动态调整网络切片的持续时间,尽可能多的满足用户的连接需求的同时,完成网络切片的删除并释放资源。In the process of creating network slices, the present invention adds steps of recording user service applications and using application information to analyze and create corresponding parameters of network slices. The method can create a network slice that meets the demand according to the user's demand, and effectively maximize the utilization rate of the network slice, thereby improving the utilization rate of network resources. After the network slice is created, the network slice manager dynamically expands the network slice according to the user's real-time connection volume to enhance flexibility, effectively respond to certain emergencies, and meet the needs of more users. In the deletion phase, the function of adjusting the duration of network slices is added, which can dynamically adjust the duration of network slices according to the actual connection situation, and complete the deletion of network slices and release resources while meeting the connection needs of users as much as possible.

附图说明Description of drawings

此处的附图仅用来提供对本发明的进一步理解,构成本申请的一部分。本发明的示意性实施例及其说明仅用于解释本发明,并不构成对本发明的不当限定。在附图中:The drawings here are only used to provide further understanding of the present invention, and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

图1为网络切片管理器的结构示意图。FIG. 1 is a schematic structural diagram of a network slice manager.

图2为网络切片网络整体架构图。Figure 2 is a diagram of the overall architecture of the network slicing network.

图3为网络切片状态转移图。Figure 3 is a network slice state transition diagram.

图4为网络切片创建流程图。Figure 4 is a flowchart for creating network slices.

图5为网络切片扩容流程图。Figure 5 is a flowchart of network slicing expansion.

图6为网络切片删除流程图。Fig. 6 is a flowchart of network slice deletion.

具体实施方式detailed description

为了使本发明的技术方案与功能结构更加便于理解,以下结合附图通过各部分功能对本发明进行详细说明。此处描述的具体功能实施例仅用以解释本发明,并不用于限定本发明。In order to make the technical solution and functional structure of the present invention easier to understand, the present invention will be described in detail below through the functions of each part in conjunction with the accompanying drawings. The specific functional embodiments described here are only used to explain the present invention, not to limit the present invention.

本发明提出的一种网络切片管理器的结构如图1所示,包括创建模块、扩容模块、删除模块、用户请求表、网络切片参数表和网络切片状态表,以及多个外部接口;其中,创建模块分别与用户请求表、网络切片参数表相连;扩容模块分别与网络切片参数表、网络切片状态表相连;删除模块分别与网络切片参数表、网络切片状态表相连。The structure of a network slicing manager proposed by the present invention is shown in Figure 1, including a creation module, an expansion module, a deletion module, a user request table, a network slicing parameter table, a network slicing status table, and multiple external interfaces; wherein, The creation module is connected with the user request table and the network slicing parameter table respectively; the capacity expansion module is connected with the network slicing parameter table and the network slicing state table respectively; the deletion module is connected with the network slicing parameter table and the network slicing state table respectively.

采用本发明上述管理器的网络切片网络的整体架构,如图2所示,整个网络中包括核心网、接入网、物理资源池、网络切片管理器、网络切片和用户。其中,核心网与接入网中均存储着多种网络功能NF,如图2中所示的NF1、NF2、…、NF8;网络切片管理器中的创建模块通过外部接口与核心网、接入网、物理资源池和用户连接;网络切片管理器中的扩容模块通过外部接口与已存在的网络切片和物理资源池相连;网络切片管理器中的删除模块通过外部接口与已存在的网络切片相连。The overall architecture of the network slicing network using the above-mentioned manager of the present invention is shown in FIG. 2 , the entire network includes a core network, an access network, a physical resource pool, a network slicing manager, network slicing and users. Among them, both the core network and the access network store a variety of network function NFs, such as NF1, NF2, ..., NF8 shown in Figure 2; the creation module in the network slice manager communicates with the core network, access Network, physical resource pool and user connection; the expansion module in the network slice manager is connected to the existing network slice and physical resource pool through the external interface; the deletion module in the network slice manager is connected to the existing network slice through the external interface .

所述管理器的创建模块用于网络切片的创建;创建模块接收到用户发送网络切片申请请求后,对包括用户申请网络切片的业务类型和申请时间在内的申请信息进行收集并存储在用户请求表中,所述申请信息根据设定的周期定时由创建模块更新,用户的活动具有一定的周期性,本实施例以24小时来作为一个周期;创建模块根据前一周期收集的申请信息分析出用户所需网络切片的各项参数,主要包括网络切片类型、网络切片中包含的网络功能、网络切片的创建时间、网络切片的预测持续时间和网络切片的用户容量,根据网络切片参数利用核心网或接入网中相应的网络功能以及物理资源池中相应的物理资源创建网络切片,或者向用户反馈网络切片创建失败的信息;其中,同一业务类型的网络切片类型及该网络切片包含的网络功能唯一确定;创建时间根据本次和上次该网络切片的申请时间被创建模块更新,作为下次创建该类网络切片的创建时间。The creation module of the manager is used to create network slices; after the creation module receives the network slice application request sent by the user, it collects the application information including the service type and application time of the user's application network slice and stores it in the user request. In the table, the application information is regularly updated by the creation module according to the set cycle, and the user's activities have a certain periodicity. In this embodiment, 24 hours are used as a cycle; the creation module analyzes the application information collected in the previous cycle. The parameters of the network slicing required by the user mainly include the network slicing type, the network functions included in the network slicing, the creation time of the network slicing, the predicted duration of the network slicing, and the user capacity of the network slicing. Or the corresponding network functions in the access network and the corresponding physical resources in the physical resource pool create network slices, or feed back information about the failure of network slice creation to the user; among them, the network slice type of the same service type and the network functions contained in the network slice Uniquely determined; the creation time is updated by the creation module according to the current and last application time of the network slice, as the creation time of the next creation of this type of network slice.

所述管理器的扩容模块用于网络切片的扩容;扩容模块实时获取每个现存网络切片的拥塞状态、该网络切片的实际用户连接量以及每个现存网络切片的拓扑关系;扩容模块一旦检测到某一现存网络切片发生拥塞时,将从与该网络切片存在拓扑关系的其他网络切片或者物理资源池中获取适应于该网络切片的物理资源,对发生拥塞的网络切片进行扩容;同时,扩容模块会将发生拥塞的该类型网络切片的用户容量提升5%~15%(具体数值可根据实际拥塞程度进行设定),满足用户的业务需求,提升后的用户容量作为下次创建相同类型网络切片的用户容量。The expansion module of the manager is used for the expansion of network slices; the expansion module obtains the congestion state of each existing network slice, the actual user connection volume of the network slice, and the topology relationship of each existing network slice in real time; once the expansion module detects When an existing network slice is congested, it will obtain physical resources suitable for the network slice from other network slices or physical resource pools that have a topological relationship with the network slice, and expand the congested network slice; at the same time, the expansion module The user capacity of this type of network slice that is congested will be increased by 5% to 15% (the specific value can be set according to the actual congestion level) to meet the user's business needs, and the increased user capacity will be used as the next creation of the same type of network slice user capacity.

所述管理器的删除模块用于网络切片的删除;网络切片创建以后,当网络切片的持续时间达到预测持续时间的75%~85%(具体数值可根据当时实际连接量大小进行设定)后、且连续预测持续时间的5%时间段内该网络切片的用户连接量均为零,删除模块则删除该网络切片、释放其内部的物理资源并删除该网络切片对应的状态信息;删除模块根据当前被删除网络切片的实际持续时间对该类型网络切片的预测持续时间进行更新,便于下次创建同类型网络片切片时使用。The deletion module of the manager is used to delete the network slice; after the network slice is created, when the duration of the network slice reaches 75% to 85% of the predicted duration (the specific value can be set according to the actual connection amount at that time) , and the user connection volume of the network slice is zero within 5% of the continuous prediction duration, the deletion module deletes the network slice, releases its internal physical resources and deletes the state information corresponding to the network slice; the deletion module according to The actual duration of the currently deleted network slice updates the predicted duration of this type of network slice, which is convenient for use when creating the same type of network slice next time.

所述管理器的用户请求表如表1所示,用于存储创建模块收集的用户申请网络切片请求信息,包括业务类型和申请时间两列;其中,业务类型是指如高清视频、游戏业务等业务,在表1中这些业务类型由7位二进制数字表示,最多可以代表128种不同的业务类型,如表1中0000000表示高清视频业务、0000001表示游戏业务;申请时间由10位整数存储,如表1所示,0910082034表示9月10日8点20分34秒;用户请求表会记录24小时内的用户申请信息,本实施例最多存储20000条(存储的用户申请信息条数上限可根据实际需要进行设定)用户申请信息,每24小时删除表1中的所有信息,并由创建模块更新表1。The user request table of the manager is shown in Table 1, which is used to store the user application network slicing request information collected by the creation module, including two columns of service type and application time; wherein, the service type refers to such as high-definition video, game service, etc. Business, these business types in Table 1 are represented by 7 binary numbers, which can represent up to 128 different business types, such as in Table 1, 0000000 represents high-definition video business, 0000001 represents game business; the application time is stored by 10-digit integer, such as As shown in Table 1, 0910082034 means September 10 at 8:20:34; the user request table will record the user application information within 24 hours, and this embodiment can store up to 20,000 pieces (the upper limit of the stored user application information number can be determined according to the actual situation) Need to set) user application information, delete all information in table 1 every 24 hours, and update table 1 by the creation module.

表1Table 1

业务类型business type 申请时间application time 00000000000000 09100820340910082034 00000010000001 09100930230910093023 ……... ……...

所述管理器的网络切片参数表如表2所示,该表用于存储所有类型的网络切片的各项参数,包括网络切片的类型、网络切片中包含的网络功能、网络切片的创建时间、网络切片的预测持续时间和网络切片的用户容量;其中,网络切片类型与表1中的业务类型相对应,以同样的7bit表示;网络功能NF存在于核心网与接入网中,用2位整数表示不同的网络功能,例如表2的网络功能中03表示高带宽的网络功能、02表示低时延的网络功能;创建时间同样由10位整数表示,0911080010表示9月11日8点0分10秒;预测持续时间的单位为小时;用户容量的单位为个。对于初次创建网络切片,该网络切片的创建时间和预测持续时间由创建模块根据表1中申请时间分布密集的时间段来确定,该网络切片的用户容量由创建模块根据最大单小时内的用户申请数确定。对于非首次创建的同一类型网络切片,该网络切片对应的网络功能唯一确定且不会改变,而创建时间根据本次和上次该网络切片的申请时间被创建模块更新、预测持续时间根据本次该网络切片的实际持续时间和上次该网络切片的预测持续时间被删除模块更新、之前发生过拥塞网络切片的用户容量被扩容模块更新,便于下次创建同类型网络片切片时使用。The network slicing parameter table of the manager is shown in Table 2, which is used to store various parameters of all types of network slicing, including the type of network slicing, the network functions contained in the network slicing, the creation time of the network slicing, The predicted duration of network slicing and the user capacity of network slicing; among them, the network slicing type corresponds to the service type in Table 1, and is represented by the same 7 bits; the network function NF exists in the core network and the access network, and is represented by 2 bits Integers represent different network functions. For example, in the network functions in Table 2, 03 represents high-bandwidth network functions, and 02 represents low-latency network functions; the creation time is also represented by a 10-digit integer, and 0911080010 represents September 11 at 08:00 10 seconds; the unit of forecast duration is hour; the unit of user capacity is unit. For the initial creation of a network slice, the creation time and predicted duration of the network slice are determined by the creation module according to the densely distributed time period of the application time in Table 1, and the user capacity of the network slice is determined by the creation module according to the largest single-hour user application The number is determined. For a network slice of the same type that is not created for the first time, the network function corresponding to the network slice is uniquely determined and will not change, and the creation time is updated by the creation module according to the current and last application time of the network slice, and the predicted duration is based on this time The actual duration of the network slice and the predicted duration of the last network slice are updated by the deletion module, and the user capacity of the previously congested network slice is updated by the expansion module, which is convenient for use when creating the same type of network slice next time.

表2Table 2

网络切片类型Network slice type 网络功能Network features 创建时间creation time 预测持续时间forecast duration 用户容量user capacity 00000000000000 03,0503,05 09110800100911080010 44 400400 00000010000001 02,0702,07 09110900230911090023 66 200200 ……... ……... ……... ……... ……...

所述管理器的网络切片状态表如表3所示,该表用于存储现存网络切片的状态信息,包括网络切片编号、拥塞状态、该网络切片与其他网络切片的拓扑关系以及用户连接量四列;由于在同一时刻,相同类型的网络切片只会存在一个,所以网络切片编号与表2中网络切片类型相对应,以同样的7bit表示;当接入网络切片的用户过多时,网络切片服务用户的过程中会出现丢包或时延增大的情况,即发生拥塞,表3中用“1”表示发生拥塞,“0”则表示未发生拥塞;拓扑关系中“0000001”表示该网络切片与网络切片编号为0000001的网络切片存在拓扑关系,“0000000”表示该网络切片与网络切片编号为0000000的网络切片存在拓扑关系,“—”表示没有与该网络切片存在拓扑关系的网络切片;用户连接量则表示当前连接到该网络切片的用户数量。The network slice state table of the manager is shown in Table 3, which is used to store the state information of the existing network slice, including network slice number, congestion state, topological relationship between the network slice and other network slices, and user connection volume. column; since there is only one network slice of the same type at the same time, the number of the network slice corresponds to the network slice type in Table 2, and is represented by the same 7 bits; when there are too many users accessing the network slice, the network slice service In the process of users, there will be packet loss or increased delay, that is, congestion occurs. In Table 3, "1" indicates that congestion occurs, and "0" indicates that no congestion occurs; "0000001" in the topology relationship indicates that the network slice There is a topological relationship with the network slice whose network slice number is 0000001, "0000000" indicates that the network slice has a topological relationship with the network slice with the network slice number 0000000, and "—" indicates that there is no network slice that has a topological relationship with the network slice; the user The connection amount indicates the number of users currently connected to the network slice.

表3table 3

网络切片编号Network slice number 拥塞状态congestion state 拓扑关系topological relationship 用户连接量User connections 00000000000000 00 00000010000001 2020 00000010000001 11 00000000000000 200200 00000100000010 00 00 ……... ……... ……... ……...

本发明提出的上述网络切片管理器的管理方法包括网络切片的创建、扩容及删除三个部分,图3为网络切片状态的转移图,0代表不存在网络切片,1代表存在网络切片。该状态转移图中涵盖了本发明网络切片管理器管理方法中涉及的所有流程:创建网络切片之前由创建模块收集用户的网络切片请求信息,为网络切片的创建做准备,创建模块通过用户请求信息分析出需要创建的网络切片类型及其参数(包括网络切片所包含的网络功能、创建时间和预测持续时间等)后,创建出网络切片,进入状态1;在网络切片存在过程中,当扩容模块检测到网络切片发生拥塞时,则会对其进行扩容操作,即提升该网络切片的用户容量;当满足设定的时间要求,而没有用户连接该网络切片时,删除模块则删除该网络切片并释放其内部的物理资源,返回状态0。The management method of the above-mentioned network slice manager proposed by the present invention includes three parts: creation, expansion and deletion of network slices. FIG. 3 is a transition diagram of network slice states, 0 means that there is no network slice, and 1 means that there is a network slice. The state transition diagram covers all processes involved in the network slice manager management method of the present invention: before creating a network slice, the creation module collects the user's network slice request information to prepare for the creation of the network slice, and the creation module passes the user request information After analyzing the type of network slice that needs to be created and its parameters (including the network functions contained in the network slice, creation time and forecast duration, etc.), the network slice is created and enters state 1; during the existence of the network slice, when the expansion module When a network slice is detected to be congested, it will expand the capacity of the network slice, that is, increase the user capacity of the network slice; when the set time requirement is met and no user is connected to the network slice, the deletion module will delete the network slice and Release its internal physical resources and return status 0.

下面结合流程图对本发明管理方法的具体步骤详细说明如下:Below in conjunction with flow chart, the specific steps of management method of the present invention are described in detail as follows:

所述网络切片的创建方法,其流程如图4所示,具体包括以下步骤:The creation method of described network slice, its process is as shown in Figure 4, specifically comprises the following steps:

(1.1)用户根据业务需求,向网络切片管理器的创建模块发送申请网络切片请求;(1.1) The user sends a network slicing application request to the creation module of the network slicing manager according to business requirements;

(1.2)创建模块收到用户发送的申请网络切片请求后,将包括该网络切片请求的业务类型和申请时间在内的申请信息收集并存储在用户请求表中;本实施例中,用户请求表先记录24小时内的用户申请信息,创建模块每24小时删除表中所有信息,并开始记录下一个24小时的用户申请信息,创建模块根据过去一天24小时收集的用户申请信息对未来一天的用户申请信息进行预测;(1.2) After the creation module receives the application network slicing request sent by the user, the application information including the service type and application time of the network slicing request is collected and stored in the user request table; in this embodiment, the user request table First record the user application information within 24 hours, the creation module deletes all the information in the table every 24 hours, and starts to record the user application information for the next 24 hours, the creation module uses the user application information collected in the past 24 hours in the past day for users in the next day Application information for prediction;

(1.3)创建模块对不同业务类型的用户申请进行分类,分析出创建不同业务类型网络切片所需要的网络功能;创建模块分别统计不同业务类型申请时间的分布情况,根据不同业务类型申请时间分布密集的时间段来确定各个网络切片的创建时间和预测持续时间T,以最大的单小时内用户申请数作为用户容量;创建模块将与业务类型对应的网络切片类型、网络切片中包含的网络功能、网络切片的创建时间、网络切片的预测持续时间和网络切片的用户容量存储在网络切片参数表中;(1.3) The creation module classifies user applications of different business types, and analyzes the network functions required to create network slices of different business types; the creation module counts the distribution of application time for different business types, and the application time distribution is dense according to different business types To determine the creation time and forecast duration T of each network slice, the maximum number of user applications in a single hour is used as the user capacity; the creation module will correspond to the type of network slice type, the network function included in the network slice, The creation time of the network slice, the predicted duration of the network slice, and the user capacity of the network slice are stored in the network slice parameter table;

(1.4)根据步骤(1.3)网络切片参数表中的参数,创建模块查找核心网和接入网中是否存在相应的网络功能,根据用户容量判断物理资源池中的资源是否充足:如果存在相应网络功能和充足的物理资源,则创建模块按照步骤(1.3)网络切片参数表中的参数创建网络切片;如果不存在相应网络功能或物理资源不足则创建失败,创建失败后创建模块向用户反馈失败信息,令用户放弃该业务的请求;(1.4) According to the parameters in the network slicing parameter table in step (1.3), create a module to find whether there are corresponding network functions in the core network and access network, and judge whether the resources in the physical resource pool are sufficient according to the user capacity: if there is a corresponding network function and sufficient physical resources, the creation module will create a network slice according to the parameters in the network slice parameter table in step (1.3); if there is no corresponding network function or insufficient physical resources, the creation will fail, and the creation module will feedback the failure information to the user after the creation fails , so that the user abandons the service request;

(1.5)创建模块再次收到与已经记录在网络切片参数表中的网络切片类型相应的用户请求时,重新统计其申请时间分布密集的时间段,分析出新的创建时间,并与网络切片参数表中原来的创建时间取平均值来更新创建时间,作为下一次创建同类型网络切片的创建时间。(1.5) When the creation module receives another user request corresponding to the network slicing type recorded in the network slicing parameter table, it will re-count the time period in which the application time is densely distributed, analyze the new creation time, and compare it with the network slicing parameters The original creation time in the table is averaged to update the creation time, which is used as the creation time of the next creation of the same type of network slice.

所述网络切片的扩容方法,其流程如图5所示,具体包括以下步骤:The expansion method of the network slicing, the process of which is shown in Figure 5, specifically includes the following steps:

(2.1)扩容模块实时获取所有现存网络切片的状态信息(包括网络切片编号、拥塞状态、与其他网络切片的拓扑关系以及用户连接量等),并将该状态信息存储在网络切片状态表中;当检测到网络切片发生拥塞时,扩容模块获取与该网络切片存在拓扑关系的其他网络切片的用户连接量,如果存在资源充沛的其他网络切片(例如该网络切片的用户连接量低于其用户容量的20%,具体数值可根据实际情况进行设定),则将该网络切片的物理资源共享给发生拥塞的网络切片;如果不存在资源充沛的网络切片,则进入步骤(2.2);(2.1) The expansion module obtains the state information of all existing network slices in real time (including network slice number, congestion state, topological relationship with other network slices, and user connection volume, etc.), and stores the state information in the network slice state table; When a network slice is detected to be congested, the capacity expansion module obtains the user connections of other network slices that have a topological relationship with the network slice. 20%, the specific value can be set according to the actual situation), then share the physical resources of the network slice with the congested network slice; if there is no network slice with sufficient resources, then enter step (2.2);

(2.2)扩容模块从物理资源池获取适应于该网络切片的物理资源,对该网络切片扩容;如果物理资源池中相应资源不足,则扩容失败;扩容失败后,扩容模块会阻止用户接入到该拥塞的网络切片上,直到该网络切片的用户连接量低于用户容量的70%~80%(具体数值可根据实际网络拥塞情况进行设定)时才允许用户接入;(2.2) The expansion module acquires physical resources suitable for the network slice from the physical resource pool, and expands the network slice; if the corresponding resources in the physical resource pool are insufficient, the expansion fails; after the expansion fails, the expansion module prevents users from accessing the On the congested network slice, user access is not allowed until the user connection volume of the network slice is lower than 70% to 80% of the user capacity (the specific value can be set according to the actual network congestion);

(2.3)一旦检测到某个网络切片发生一次拥塞时,无论扩容成功与否,扩容模块都会将网络切片参数表中该类型网络切片的用户容量提升5%~15%,作为下次创建同类型网络切片的用户容量。(2.3) Once a congestion occurs in a certain network slice, regardless of whether the expansion is successful or not, the expansion module will increase the user capacity of this type of network slice in the network slice parameter table by 5% to 15%, as the next time to create the same type User capacity for network slices.

所述网络切片的删除方法,其流程如图6所示,具体包括以下步骤:The method for deleting the network slice, the process of which is shown in Figure 6, specifically includes the following steps:

(3.1)当网络切片持续时间t1达到预测持续时间T的75%~85%后,若连续时间t2(预测持续时间的5%)内删除模块检测到网络切片状态表中该类型网络切片的用户连接量始终为零,则删除模块删除该网络切片并释放其内部的物理资源,同时删除网络切片状态表中该网络切片对应的所有信息;(3.1) When the network slice duration t1 reaches 75% to 85% of the predicted duration T, if the deletion module detects users of this type of network slice in the network slice state table within the continuous time t2 (5% of the predicted duration) If the connection amount is always zero, the deletion module deletes the network slice and releases its internal physical resources, and deletes all information corresponding to the network slice in the network slice state table;

(3.2)删除模块记录每个网络切片每次的实际持续时间T1(即该网络切片从最初创建到最终删除所历经的时长),如果实际的持续时间T1与预测持续时间T相差不超过预测持续时间T的5%,则下次该网络切片依旧维持原预测持续时间T;如果实际的持续时间T与预测持续时间T相差超过预测持续时间T的5%,则进入步骤(3.3);(3.2) The deletion module records the actual duration T1 of each network slice each time (that is, the duration of the network slice from initial creation to final deletion), if the difference between the actual duration T1 and the predicted duration T does not exceed the predicted duration 5% of the time T, then the network slice will still maintain the original predicted duration T next time; if the difference between the actual duration T and the predicted duration T exceeds 5% of the predicted duration T, then enter step (3.3);

(3.3)删除模块计算出预测持续时间T与实际的持续时间T1的平均值T2,并将网络切片参数表中该网络切片的原预测持续时间修改为该平均值T2,作为下一次创建该类型网络切片的预测持续时间。(3.3) The deletion module calculates the average value T2 of the predicted duration T and the actual duration T1, and modifies the original predicted duration of the network slice in the network slice parameter table to the average value T2, as the next creation of this type Prediction duration for network slices.

以上步骤均能通过普通编程方法实现。All the above steps can be realized by common programming methods.

Claims (8)

1. a kind of network is cut into slices manager, it is characterised in that including creation module, dilatation module, removing module, user's request Table, network slicing parameter table and network section state table, and multiple external interfaces;Wherein, creation module respectively please with user Table, network slicing parameter table is asked to be connected;Dilatation module is connected with network slicing parameter table, network section state table respectively;Delete Module is connected with network slicing parameter table, network section state table respectively;Creation module is by external interface and core net, access Net, physical resource pool and user connection, dilatation module are cut into slices with already present network by external interface and physical resource pool phase Even, removing module is connected with the section of already present network by external interface.
2. network as claimed in claim 1 is cut into slices manager, it is characterised in that the creation module is used for the wound of network section Build;After the network section application request that creation module receive user sends, to the type of service including user's log on section It is collected and stores into user's request table in interior application information with the application time, the application information is according to setting cycle Timing is updated by creation module;Creation module network section according to needed for the application information that the previous cycle collects analyzes user Parameters, it is main including the network function included in network slice type, network section, the creation time of network section, net The user capacity for predicting persistent period and network section of network section simultaneously stores these parameters into network slicing parameter table, root According to network slicing parameter using corresponding physics money in corresponding network function in core net or access network and physical resource pool Source creates network section, or the information of establishment failure of cutting into slices to user feedback network;Wherein, the network of same type of service is cut The network function that sheet type and the network section are included is uniquely determined;Shen of the creation time according to network section of this and last time Please be created module renewal the time, as the creation time for creating such network section next time.
3. network as claimed in claim 2 is cut into slices manager, it is characterised in that the dilatation module is used for the expansion of network section Hold;Dilatation module obtain in real time the congestion state of each existing network section, the active user connection amount of network section and The topological relation of each existing network section simultaneously stores these status informations into network section state table;Dilatation module is once When detecting a certain existing network section congestion occurring, will cut into slices from other networks that there is topological relation with network section or The physical resource for being adapted to the network section is obtained in person's physical resource pool, the network section to there is congestion carries out dilatation;Together When, the user capacity of the type network section that congestion occurs can be lifted 5%~15% by dilatation module, meet the business of user Demand, the user capacity after lifting create the user capacity of same type network section as next time.
4. network as claimed in claim 3 is cut into slices manager, it is characterised in that the removing module is used for deleting for network section Remove;It is after network section is created, after the persistent period of network section the 75%~85% of prediction persistent period is reached and continuous In 5% time period of prediction persistent period, user's connection amount of the network section is zero, and removing module is then deleted the network and cut Piece, the physical resource for discharging its inside simultaneously delete the corresponding status information of network section;Removing module is deleted according to current The actual persistent period of network section was updated to the prediction persistent period that the type network is cut into slices, and was easy to create next time similar Use when type network piece is cut into slices.
5. a kind of network as claimed in claim 1 is cut into slices the management method of manager, it is characterised in that including the wound of network section Build, dilatation and delete three parts;Creation module collects the network section solicited message of user, is that standard is done in the establishment of network section Standby, creation module is created that network after user request information analyzes the network slice type and its parameter that need to create Section;When dilatation module detects network section, and congestion occurs, then dilatation can be carried out to which, that is, lift the use of the network section Family capacity;When the time requirement for meeting setting accesses already present network section without user, removing module then deletes the net Network is cut into slices and discharges its internal physical resource.
6. network as claimed in claim 5 is cut into slices the management method of manager, it is characterised in that the establishment side of the network section Method, specifically includes following steps:
(1.1) user is according to business demand, the creation module transmission log on section request of manager of cutting into slices to network;
(1.2) after creation module receives the log on section request of user's transmission, by the business including the network section request Type and application time are collected and stored in user's request table in interior application information;Creation module is automatic according to setting cycle The information in user's request table is updated, and according to the user application information of user's application information to this cycle of storage of the upper cycle It is predicted;
(1.3) user application of the creation module to different service types is classified, and analyzes establishment different service types network Network function required for section;Creation module also counts the distribution situation of different service types application time respectively, according to not Creation time and the prediction persistent period of each network section are determined with densely distributed time period type of service application time T, using in maximum single hour, user applies number as user capacity;Creation module will network section class corresponding with type of service Network function, the creation time of network section, the prediction persistent period of network section and the network included in type, network section is cut The user capacity of piece is stored in network slicing parameter table;
(1.4) according to the parameter in network slicing parameter table, creation module whether there is corresponding in searching core net and access network Network function, judge according to user capacity whether the resource in physical resource pool sufficient:If there is corresponding network function and Sufficient physical resource, then creation module is according to the parameter establishment network section in network slicing parameter table;If there is no phase Network function or not enough then establishment of physical resource is answered to fail, creation module to user feedback failure information, use by order after creating failure Abandon the request of the business in family;
(1.5) creation module be received again by with already recorded in the corresponding user of network slice type in network slicing parameter table During request, count again densely distributed time period its application time, analyze new creation time, and with network slicing parameter In table, original creation time averages to update creation time, during as creating the establishment of same type network section next time Between.
7. network as claimed in claim 5 is cut into slices the management method of manager, it is characterised in that the dilatation side of the network section Method, specifically includes following steps:
(2.1) dilatation module obtains the status information of all existing network sections in real time, and the status information is stored in network In section state table;When network section generation congestion is detected, dilatation module is obtained has topological relation with network section The section of other networks user's connection amount, cut into slices if there is other abundant networks of resource, then by the thing of network section Reason resource-sharing is to the network section that congestion occurs;If there is no the network section that resource is abundant, then into step (2.2);
(2.2) dilatation module obtains the physical resource for being adapted to the network section from physical resource pool, dilatation of cutting into slices to the network; If respective resources are not enough in physical resource pool, dilatation failure;After dilatation failure, dilatation module can prevent user from being linked into this In the network section of congestion, just allow to use when user's connection amount of the network section is less than the 70%~80% of user capacity Access at family;
(2.3) when detecting the section of certain network congestion occurs, no matter dilatation success or not, dilatation module all can be by In network slicing parameter table, the user capacity of the type network section lifts 5%~15%, creates same type network as next time The user capacity of section.
8. network as claimed in claim 5 is cut into slices the management method of manager, it is characterised in that the deletion side of the network section Method, specifically includes following steps:
(3.1) after network chip durations t1 reaches the 75%~85% of prediction duration T, if deleting in t2 continuous time Except user's connection amount that module detects the type network section in network section state table is always zero, then removing module is deleted The network is cut into slices and discharges its internal physical resource, while it is corresponding all to delete the network section in network section state table Information;T2 continuous time is predict duration T 5%;
(3.2) removing module records each network and cuts into slices each actual duration T 1, if the duration T of reality 1 with Prediction duration T difference less than prediction duration T 5%, then next time, the network section still maintained former prediction to continue Time T;If the duration T of reality differs by more than the 5% of prediction duration T with prediction duration T, into step (3.3);
(3.3) removing module calculates meansigma methodss T2 of prediction duration T and the duration T 1 of reality, and network is cut into slices In parameter list, the former prediction persistent period of the network section is revised as meansigma methodss T2, cuts as the type network is created next time The prediction persistent period of piece.
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