技术领域technical field
本发明涉及移动边缘计算服务器的资源分配技术领域，特别是涉及一种移动边缘计算服务器的资源分配方法、系统及服务器系统。The present invention relates to the technical field of resource allocation of mobile edge computing servers, in particular to a resource allocation method, system and server system of mobile edge computing servers.
背景技术Background technique
现有技术在资源分配过程中的处理用户的请求时，一旦本地基站服务器不能满足用户请求时，将通过核心网获取用户请求的内容，时延较大。而且现有技术中的资源分配过程的计算量巨大，计算方式复杂，当网络环境较为复杂时可能会因计算量大带来能耗利用不佳的问题，而且当网络繁忙时，辅助设备的寻找比较困难，不能帮助本地设备实现协同通信，用户的服务质量必然受到影响，因此迫切需要提供一种移动边缘计算服务器的资源分配方法、系统及服务器系统。In the prior art, when a user's request is processed in a resource allocation process, once the local base station server cannot satisfy the user's request, the content of the user's request will be obtained through the core network, and the delay is relatively large. In addition, the resource allocation process in the prior art requires a huge amount of calculation and complicated calculation methods. When the network environment is relatively complex, the problem of poor energy consumption may be caused due to the large amount of calculation, and when the network is busy, the search for auxiliary equipment It is relatively difficult and cannot help local devices to achieve collaborative communication, and the service quality of users will inevitably be affected. Therefore, it is urgent to provide a resource allocation method, system and server system for a mobile edge computing server.
发明内容SUMMARY OF THE INVENTION
鉴于以上所述现有技术的缺点，本发明的目的在于提供一种移动边缘计算服务器的资源分配方法、系统及服务器系统，用于解决现有技术中时延较大、计算方式复杂、用户的服务质量容易受到影响的问题。In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a resource allocation method, system and server system for a mobile edge computing server, which are used to solve the problems of large time delay, complicated calculation method, and user's inconvenience in the prior art. The quality of service is susceptible to problems.
为实现上述目的及其他相关目的，本发明提供一种移动边缘计算服务器的资源分配方法，所述资源分配方法包括：To achieve the above object and other related objects, the present invention provides a resource allocation method for a mobile edge computing server, the resource allocation method comprising:
划定协作区间，设置核心移动边缘计算服务器；Delineate the collaboration area and set up the core mobile edge computing server;
根据用户的计算任务需求和缓存任务需求判断本地基站服务器是否满足用户的计算任务需求和缓存任务需求，如果满足，则所述本地基站服务器为用户提供服务；否则，则所述本地基站服务器向所述核心移动边缘计算服务器发出资源调用请求；According to the user's computing task requirements and cache task requirements, it is judged whether the local base station server meets the user's computing task requirements and cache task requirements. If so, the local base station server provides services for the user; The core mobile edge computing server sends a resource call request;
判断所述核心移动边缘计算服务器是否满足用户的计算任务需求和缓存任务需求，如果满足，则所述核心移动边缘计算服务器为用户提供服务；否则，所述核心移动边缘计算服务器向云端服务器发出资源调用请求；Determine whether the core mobile edge computing server meets the user's computing task requirements and cache task requirements, and if so, the core mobile edge computing server provides services for the user; otherwise, the core mobile edge computing server sends resources to the cloud server. call request;
利用所述云端服务器为用户提供服务。The cloud server is used to provide services to users.
在本发明的一实施例中，所述设置核心移动边缘计算服务器的步骤包括：In an embodiment of the present invention, the step of setting the core mobile edge computing server includes:
将所述协作区间内与所述协作区间的中心位置距离最近的本地基站服务器设置为核心移动边缘计算服务器。The local base station server in the cooperation interval that is closest to the center position of the cooperation interval is set as the core mobile edge computing server.
在本发明的一实施例中，所述本地基站服务器为用户提供服务是根据所述本地基站服务器的服务质量强弱为用户提供服务。In an embodiment of the present invention, the service provided by the local base station server to the user is to provide the service for the user according to the service quality of the local base station server.
在本发明的一实施例中，所述用户的计算任务需求为tcki；In an embodiment of the present invention, the computing task requirement of the user is tcki ;
所述缓存任务需求为tpki：The cache task requirement is tpki :
其中，D表示核心移动边缘计算服务器的剩余缓存资源，F表示核心移动边缘计算服务器的剩余计算资源，tdki表示调用缓存出价，tzki表示调用计算出价，k表示第k个用户，i表示第i个服务器，M表示移动边缘计算服务器的集合。Among them, D represents the remaining cache resources of the core mobile edge computing server, F represents the remaining computing resources of the core mobile edge computing server, tdki represents the call cache bid, tzki represents the call calculation bid, k represents the kth user, and i represents the th i servers, M represents a set of mobile edge computing servers.
在本发明的一实施例中，所述判断所述核心移动边缘计算服务器是否满足用户的计算任务需求和缓存任务需求的步骤包括：In an embodiment of the present invention, the step of judging whether the core mobile edge computing server meets the user's computing task requirements and cache task requirements includes:
其中，判断所述核心移动边缘计算服务器是否满足用户的计算任务需求的公式为：Wherein, the formula for judging whether the core mobile edge computing server meets the computing task requirements of the user is:
判断所述核心移动边缘计算服务器是否满足用户的缓存任务需求的公式为：The formula for judging whether the core mobile edge computing server meets the user's cache task requirements is:
其中，表示用户k是否需要从核心移动边缘计算服务器调用缓存资源，表示用户k是否需要从核心移动边缘计算服务器调用计算资源；in, Indicates whether user k needs to call cache resources from the core mobile edge computing server, Indicates whether user k needs to call computing resources from the core mobile edge computing server;
如果满足且则所述核心移动边缘计算服务器为用户提供服务。if satisfied and Then the core mobile edge computing server provides services for the user.
为实现上述目的，本发明还提供一种移动边缘计算服务器的资源分配系统，所述资源分配系统包括：To achieve the above object, the present invention also provides a resource allocation system for a mobile edge computing server, the resource allocation system comprising:
核心移动边缘计算服务器设置单元，用于划定协作区间，设置核心移动边缘计算服务器；The core mobile edge computing server setting unit is used to demarcate the cooperation interval and set the core mobile edge computing server;
第一计算任务需求和缓存任务需求判断单元，用于根据用户的计算任务需求和缓存任务需求判断本地基站服务器是否满足用户的计算任务需求和缓存任务需求，如果满足，则所述本地基站服务器为用户提供服务；否则，则所述本地基站服务器向所述核心移动边缘计算服务器发出资源调用请求；The first computing task demand and cache task demand judgment unit is used to judge whether the local base station server meets the user's computing task demand and cache task demand according to the user's computing task demand and cache task demand. If so, the local base station server is: The user provides services; otherwise, the local base station server sends a resource invocation request to the core mobile edge computing server;
第二计算任务需求和缓存任务需求判断单元，用于判断所述核心移动边缘计算服务器是否满足用户的计算任务需求和缓存任务需求，如果满足，则所述核心移动边缘计算服务器为用户提供服务；否则，所述核心移动边缘计算服务器向云端服务器发出资源调用请求；a second computing task requirement and cache task requirement judgment unit, configured to determine whether the core mobile edge computing server meets the user's computing task requirements and cache task requirements, and if so, the core mobile edge computing server provides services for the user; Otherwise, the core mobile edge computing server sends a resource call request to the cloud server;
服务单元，用于利用所述云端服务器为用户提供服务。A service unit, configured to provide services to users by using the cloud server.
为实现上述目的，本发明还提供一种移动边缘计算服务器系统，所述移动边缘计算服务器系统包括：In order to achieve the above object, the present invention also provides a mobile edge computing server system, the mobile edge computing server system includes:
本地基站，在所述本地基站服务器满足用户的计算任务需求和缓存任务需求的情况下，则所述本地基站服务器为用户提供服务；否则，所述本地基站服务器向核心移动边缘计算服务器发出资源调用请求；The local base station, if the local base station server meets the user's computing task requirements and cache task requirements, the local base station server provides services for the user; otherwise, the local base station server sends a resource call to the core mobile edge computing server ask;
核心移动边缘计算服务器，在所述本地基站服务器不满足用户的计算任务需求和缓存任务需求的情况下，且在所述核心移动边缘计算服务器满足用户的计算任务需求和缓存任务需求的情况下，则所述核心移动边缘计算服务器为用户提供服务；否则，所述核心移动边缘计算服务器向云端服务器发出资源调用请求；A core mobile edge computing server, in the case that the local base station server does not meet the user's computing task requirements and cache task requirements, and in the case that the core mobile edge computing server meets the user's computing task requirements and cache task requirements, then the core mobile edge computing server provides services for the user; otherwise, the core mobile edge computing server sends a resource call request to the cloud server;
云端服务器，在所述核心移动边缘计算服务器不满足用户的计算任务需求和缓存任务需求的情况下，利用所述云端服务器为用户提供服务。The cloud server, in the case that the core mobile edge computing server does not meet the user's computing task requirements and cache task requirements, uses the cloud server to provide services for the user.
在本发明的一实施例中，将协作区间内与所述协作区间的中心位置距离最近的本地基站服务器设置为核心移动边缘计算服务器。In an embodiment of the present invention, the local base station server in the cooperation interval that is closest to the center position of the cooperation interval is set as the core mobile edge computing server.
在本发明的一实施例中，所述本地基站服务器和所述核心移动边缘计算服务器均设置于所述协作区间内部，所述云端服务器设置于所述协作区间外部。In an embodiment of the present invention, both the local base station server and the core mobile edge computing server are arranged inside the cooperation area, and the cloud server is arranged outside the cooperation area.
本发明还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机指令，所述计算机指令用于使所述计算机执行上述的服务器的资源分配方法。The present invention also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and the computer instructions are used to cause the computer to execute the above-mentioned method for allocating resources of a server.
如上所述，本发明的一种移动边缘计算服务器的资源分配方法、系统及服务器系统，具有以下有益效果：As described above, the resource allocation method, system and server system for a mobile edge computing server of the present invention have the following beneficial effects:
本发明的移动边缘计算服务器的资源分配方法包括首先设置核心移动边缘计算服务器；根据用户的计算任务需求和缓存任务需求判断本地基站服务器是否满足用户的计算任务需求和缓存任务需求，如果满足，则所述本地基站服务器为用户提供服务；否则，则所述本地基站服务器向所述核心移动边缘计算服务器发出资源调用请求；判断所述核心移动边缘计算服务器是否满足用户的计算任务需求和缓存任务需求，如果满足，则所述核心移动边缘计算服务器为用户提供服务；否则，所述核心移动边缘计算服务器向云端服务器发出资源调用请求；利用所述云端服务器为用户提供服务。本发明在协作区间内的核心移动边缘计算服务器拥有最好的资源，能够大概率满足用户需求，从而缩短传输时延，而且本发明在网络拥塞时仍然可以在协作区间内的任意服务器请求资源，计算方式简单、用户的服务质量不容易受到影响。The resource allocation method for a mobile edge computing server of the present invention includes first setting a core mobile edge computing server; according to the user's computing task requirements and cache task requirements, judging whether the local base station server meets the user's computing task requirements and cache task requirements, and if so, then The local base station server provides services for the user; otherwise, the local base station server sends a resource call request to the core mobile edge computing server; judges whether the core mobile edge computing server meets the user's computing task requirements and cache task requirements , if satisfied, the core mobile edge computing server provides services for the user; otherwise, the core mobile edge computing server sends a resource call request to the cloud server; the cloud server is used to provide services for the user. The core mobile edge computing server in the present invention has the best resources in the cooperation interval, which can meet the needs of users with a high probability, thereby shortening the transmission delay, and the present invention can still request resources from any server in the cooperation interval when the network is congested, The calculation method is simple, and the user's service quality is not easily affected.
本发明简单高效，具有较强的通用性和实用性，应用范围广泛。The invention is simple and efficient, has strong versatility and practicability, and has a wide range of applications.
附图说明Description of drawings
图1为本申请实施例提供的一种移动边缘计算服务器的资源分配方法的流程示意图；FIG. 1 is a schematic flowchart of a resource allocation method for a mobile edge computing server according to an embodiment of the present application;
图2为本申请实施例提供的一种移动边缘计算服务器的资源分配系统的结构示意图；2 is a schematic structural diagram of a resource allocation system for a mobile edge computing server according to an embodiment of the present application;
图3为本申请实施例提供的一种移动边缘计算服务器系统的模型图；FIG. 3 is a model diagram of a mobile edge computing server system provided by an embodiment of the present application;
图4为本申请实施例提供的利用本移动边缘计算服务器的资源分配方法与现有技术中的资源分配方法的传输时延随用户数目变化对比图；4 is a comparison diagram of the variation of transmission delay with the number of users between the resource allocation method using the mobile edge computing server provided by the embodiment of the present application and the resource allocation method in the prior art;
图5为本申请实施例提供的利用本移动边缘计算服务器的资源分配方法与现有技术中的资源分配方法的传输时延随基站数目变化对比图。FIG. 5 is a comparison diagram of the variation of transmission delay with the number of base stations between the resource allocation method using the mobile edge computing server provided by the embodiment of the present application and the resource allocation method in the prior art.
元件标号说明Component label description
1 一种移动边缘计算服务器的资源分配系统1 A resource allocation system for mobile edge computing servers
10 核心移动边缘计算服务器设置单元10 Core Mobile Edge Computing Server Setup Unit
20 第一计算任务需求和缓存任务需求判断单元20 The first computing task requirement and cache task requirement judgment unit
30 第二计算任务需求和缓存任务需求判断单元30 The second computing task demand and cache task demand judgment unit
40 服务单元40 service units
50 核心移动边缘计算服务器50 core mobile edge computing servers
60 本地基站服务器60 Local base station server
70 用户终端70 User Terminals
80 协作区间80 Collaboration Zone
90 云端服务器90 Cloud server
S1～S6 步骤S1～S6 steps
具体实施方式Detailed ways
以下通过特定的具体实例说明本发明的实施方式，本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用，本说明书中的各项细节也可以基于不同观点与应用，在没有背离本发明的精神下进行各种修饰或改变。需说明的是，在不冲突的情况下，以下实施例及实施例中的特征可以相互组合。The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict.
需要说明的是，以下实施例中所提供的图示仅以示意方式说明本发明的基本构想，遂图式中仅显示与本发明中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制，其实际实施时各组件的型态、数量及比例可为一种随意的改变，且其组件布局型态也可能更为复杂。It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic way, so the drawings only show the components related to the present invention rather than the number, shape and number of components in actual implementation. For dimension drawing, the type, quantity and proportion of each component can be changed at will in actual implementation, and the component layout may also be more complicated.
具体地，请参阅图1，图1为本申请实施例提供的一种服务器的资源分配方法的流程示意图，本实施例提供一种服务器的资源分配方法，所述资源分配方法包括：Specifically, please refer to FIG. 1. FIG. 1 is a schematic flowchart of a method for allocating resources to a server according to an embodiment of the present application. This embodiment provides a method for allocating resources to a server. The resource allocation method includes:
S1、划定协作区间80，设置核心移动边缘计算服务器50。S1. Delineate the cooperation area 80, and set the core mobile edge computing server 50.
S2、根据用户的计算任务需求和缓存任务需求判断本地基站服务器60是否满足用户的计算任务需求和缓存任务需求，如果本地基站服务器60满足用户的计算任务需求和缓存任务需求，则所述本地基站服务器60为用户提供服务，如果本地基站服务器60不满足用户的计算任务需求和缓存任务需求，则进行步骤S3操作。S2. Determine whether the local base station server 60 meets the user's computing task requirements and cache task requirements according to the user's computing task requirements and cache task requirements. If the local base station server 60 meets the user's computing task requirements and cache task requirements, then the local base station The server 60 provides services for the user. If the local base station server 60 does not meet the computing task requirements and the cache task requirements of the user, the operation of step S3 is performed.
S3、所述本地基站服务器60向所述核心移动边缘计算服务器50发出资源调用请求。S3. The local base station server 60 sends a resource call request to the core mobile edge computing server 50.
S4、判断所述核心移动边缘计算服务器50是否满足用户的计算任务需求和缓存任务需求，如果核心移动边缘计算服务器50满足用户的计算任务需求和缓存任务需求，则所述核心移动边缘计算服务器50为用户提供服务；否则，则进行步骤S5操作。S4, determine whether the core mobile edge computing server 50 meets the user's computing task requirements and cache task requirements, if the core mobile edge computing server 50 meets the user's computing task requirements and cache task requirements, then the core mobile edge computing server 50 Provide services for users; otherwise, go to step S5.
S5、所述核心移动边缘计算服务器50向云端服务器90发出资源调用请求。S5 , the core mobile edge computing server 50 sends a resource call request to the cloud server 90 .
S6、利用所述云端服务器90为用户提供服务。S6, using the cloud server 90 to provide services for the user.
所述核心移动边缘计算服务器50为核心MEC(Mobile Edge Computing)服务器。The core mobile edge computing server 50 is a core MEC (Mobile Edge Computing) server.
具体的，在进行步骤S2之前，用户终端70需要先提出计算任务需求和缓存任务需求。Specifically, before step S2 is performed, the user terminal 70 needs to put forward computing task requirements and cache task requirements.
具体的，步骤S1中的所述设置核心移动边缘计算服务器50的步骤包括：将所述协作区间80内与所述协作区间80的中心位置距离最近的本地基站服务器60设置为核心移动边缘计算服务器50。Specifically, the step of setting the core mobile edge computing server 50 in step S1 includes: setting the local base station server 60 in the cooperation area 80 that is closest to the center of the cooperation area 80 as the core mobile edge computing server 50.
步骤S2中的所述本地基站服务器60为用户提供服务是根据所述本地基站服务器60的服务质量强弱为用户提供服务。In step S2, the local base station server 60 provides services for users according to the service quality of the local base station server 60 to provide services for users.
具体的，所述用户的计算任务需求为tcki；Specifically, the computing task requirement of the user is tcki ;
所述缓存任务需求为tpki：The cache task requirement is tpki :
其中，D表示核心移动边缘计算服务器50的剩余缓存资源，F表示核心移动边缘计算服务器50的剩余计算资源，tdki表示调用缓存出价，tzki表示调用计算出价，k表示第k个用户，i表示第i个服务器，M表示核心移动边缘计算服务器50的工作区域。Among them, D represents the remaining cache resources of the core mobile edge computing server 50, F represents the remaining computing resources of the core mobile edge computing server 50, tdki represents the call cache bid, tzki represents the call calculation bid, k represents the kth user, i represents the ith server, and M represents the work area of the core mobile edge computing server 50 .
具体的，步骤S4中的所述判断所述核心移动边缘计算服务器50是否满足用户的计算任务需求和缓存任务需求的步骤包括：Specifically, the step of judging whether the core mobile edge computing server 50 meets the user's computing task requirements and cache task requirements in step S4 includes:
其中，判断所述核心移动边缘计算服务器50是否满足用户的计算任务需求的公式为：Wherein, the formula for judging whether the core mobile edge computing server 50 meets the computing task requirements of the user is:
判断所述核心移动边缘计算服务器50是否满足用户的缓存任务需求的公式为：The formula for judging whether the core mobile edge computing server 50 meets the user's cache task requirements is:
其中，表示用户k是否需要从核心移动边缘计算服务器50调用缓存资源，表示用户k是否需要从核心移动边缘计算服务器50调用计算资源；in, Indicates whether user k needs to call cache resources from the core mobile edge computing server 50, Indicates whether user k needs to invoke computing resources from the core mobile edge computing server 50;
如果满足且则所述核心移动边缘计算服务器50为用户提供服务。if satisfied and Then the core mobile edge computing server 50 provides services for users.
具体的，对于服务请求者，核心移动边缘计算服务器50为他们提供可能需要的计算资源和缓存资源，本发明中的表示为决策变量，表示用户k是否需要从核心移动边缘计算服务器50调用缓存资源，决策变量表示用户k是否需要从核心移动边缘计算服务器50调用计算资源。Specifically, for service requesters, the core mobile edge computing server 50 provides them with computing resources and cache resources that may be required. Denoted as a decision variable, indicating whether user k needs to call the cache resource from the core mobile edge computing server 50, the decision variable Indicates whether user k needs to invoke computing resources from the core mobile edge computing server 50 .
总的调用需求为trki(tcki,tpki)。The total call requirement is trki (tcki , tpki ).
调用资源也需要相应的用户出价，但并不是用户额外支出的。其中，tbki为调用资源出价，tdki调用缓存出价，tzki调用计算出价，因此tbki(tdki,tzki)。Invoking resources also requires corresponding user bids, but not additional expenditures by users. Among them, tbki is the call resource bid, tdki calls the cache bid, and tzki calls the calculation bid, so tbki (tdki ,tzki ).
调用资源出价是总的资源出价一部分，即总的资源出价其中一部分首先供需于本地基站服务器60所能提供的资源，调用资源出价是剩余为了从核心移动边缘计算服务器50调用的资源的支付。The call resource bid is a part of the total resource bid, that is, a part of the total resource bid is firstly supplied and demanded for the resources that the local base station server 60 can provide, and the call resource bid is the remaining payment for the resources called from the core mobile edge computing server 50 .
引入传输延迟作为优化目标，该传输延迟是由资源调度引起的。The transmission delay is introduced as an optimization target, which is caused by resource scheduling.
当本地基站服务器60不能满足服务请求者的要求时，从核心移动边缘计算服务器50调用资源，本地基站服务器60将向核心移动边缘计算服务器50发送请求信号，响应时间为tack，响应时间tack包括请求和回复的时间。When the local base station server 60 cannot meet the requirements of the service requester, the resource is called from the core mobile edge computing server 50, and the local base station server 60 will send a request signal to the core mobile edge computing server 50. The response time is tack , and the response time is tack . Include request and response times.
假设每个本地基站服务器60具有相同的缓存容量和计算能力，调用资源分为缓存调用tcki和计算调用tpki，缓存资源传输速率为Sc，Sc取决于两个服务器之间的距离，处理资源处理速率为Sp，Sp取决于服务器本身的性能，用于连接到服务器i的用户k所需资源的缓存处理时间和计算处理时间以及传输时间的公式分别为公式(1)、公式(2)、公式(3)所示。Assuming that each local base station server 60 has the same cache capacity and computing power, the call resources are divided into cache call tcki and calculation call tpki , the transmission rate of the cache resource is Sc , and Sc depends on the distance between the two servers, The processing resource processing rate isSp , which depends on the performance of the server itself, the cache processing time for the resources required by the userk connected to the server i and computing processing time and transfer time The formulas are shown in formula (1), formula (2), and formula (3).
其中Gp表示计算资源结果最后传输的数据量，vload表示负载传输速率，整个协作区间80整体延迟的公式为公式(4)；Wherein Gp represents the amount of data finally transmitted by the computing resource result, vload represents the load transmission rate, and the formula for the overall delay of the entire cooperation interval 80 is formula (4);
本发明还提供了一种服务器的资源分配系统1，请参阅图2，图2为本申请实施例提供的一种服务器的资源分配系统的结构示意图，所述资源分配系统1包括：The present invention also provides a server resource allocation system 1, please refer to FIG. 2, which is a schematic structural diagram of a server resource allocation system according to an embodiment of the application, and the resource allocation system 1 includes:
核心移动边缘计算服务器50设置单元10，用于划定协作区间80，设置核心移动边缘计算服务器50；The core mobile edge computing server 50 setting unit 10 is used for delimiting the cooperation interval 80 and setting the core mobile edge computing server 50;
第一计算任务需求和缓存任务需求判断单元20，用于根据用户的计算任务需求和缓存任务需求判断本地基站服务器60是否满足用户的计算任务需求和缓存任务需求，如果满足，则所述本地基站服务器60为用户提供服务；否则，则所述本地基站服务器60向所述核心移动边缘计算服务器50发出资源调用请求；The first computing task demand and cache task demand judgment unit 20 is used to judge whether the local base station server 60 meets the user's computing task demand and cache task demand according to the user's computing task demand and cache task demand. The server 60 provides services for users; otherwise, the local base station server 60 sends a resource call request to the core mobile edge computing server 50;
第二计算任务需求和缓存任务需求判断单元30，用于判断所述核心移动边缘计算服务器50是否满足用户的计算任务需求和缓存任务需求，如果满足，则所述核心移动边缘计算服务器50为用户提供服务；否则，所述核心移动边缘计算服务器50向云端服务器90发出资源调用请求；The second computing task demand and cache task demand judgment unit 30 is used to judge whether the core mobile edge computing server 50 meets the user's computing task demand and cache task demand, and if so, the core mobile edge computing server 50 is the user's Provide a service; otherwise, the core mobile edge computing server 50 sends a resource call request to the cloud server 90;
服务单元40，用于利用所述云端服务器90为用户提供服务。The service unit 40 is configured to use the cloud server 90 to provide services for users.
本发明还提供了一种移动边缘计算服务器系统，请参阅图3，图3为本申请实施例提供的一种服务器系统的模型图，所述服务器系统包括：The present invention also provides a mobile edge computing server system. Please refer to FIG. 3 . FIG. 3 is a model diagram of a server system provided by an embodiment of the present application. The server system includes:
本地基站服务器60，在所述本地基站服务器60满足用户的计算任务需求和缓存任务需求的情况下，则所述本地基站服务器60为用户提供服务；否则，所述本地基站服务器60向核心移动边缘计算服务器50发出资源调用请求；The local base station server 60, if the local base station server 60 meets the computing task requirements and the cache task requirements of the user, the local base station server 60 provides services for the user; otherwise, the local base station server 60 moves to the core mobile edge The computing server 50 sends a resource invocation request;
核心移动边缘计算服务器50，在所述本地基站服务器60不满足用户的计算任务需求和缓存任务需求的情况下，且在所述核心移动边缘计算服务器50满足用户的计算任务需求和缓存任务需求的情况下，则所述核心移动边缘计算服务器50为用户提供服务；否则，所述核心移动边缘计算服务器50向云端服务器90发出资源调用请求；The core mobile edge computing server 50, when the local base station server 60 does not meet the user's computing task requirements and cache task requirements, and when the core mobile edge computing server 50 meets the user's computing task requirements and cache task requirements. In this case, the core mobile edge computing server 50 provides services for the user; otherwise, the core mobile edge computing server 50 sends a resource call request to the cloud server 90;
云端服务器90，在所述核心移动边缘计算服务器50不满足用户的计算任务需求和缓存任务需求的情况下，利用所述云端服务器90为用户提供服务。The cloud server 90 uses the cloud server 90 to provide services for the user when the core mobile edge computing server 50 does not meet the user's computing task requirements and cache task requirements.
具体的，将协作区间80内与所述协作区间80的中心位置距离最近的本地基站服务器60设置为核心移动边缘计算服务器50。Specifically, the local base station server 60 within the cooperation interval 80 that is closest to the center position of the cooperation interval 80 is set as the core mobile edge computing server 50 .
所述本地基站服务器60和所述核心移动边缘计算服务器50均设置于所述协作区间80内部，所述云端服务器90设置于所述协作区间80外部。The local base station server 60 and the core mobile edge computing server 50 are both arranged inside the collaboration area 80 , and the cloud server 90 is arranged outside the collaboration area 80 .
本发明还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机指令，所述计算机指令用于使所述计算机执行上述的服务器的资源分配方法。The present invention also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and the computer instructions are used to cause the computer to execute the above-mentioned method for allocating resources of a server.
请参阅图4和图5，图4为本申请实施例提供的利用本服务器的资源分配方法与现有技术中的资源分配方法的传输时延随用户数目变化对比图。图5为本申请实施例提供的利用本服务器的资源分配方法与现有技术中的资源分配方法的传输时延随基站数目变化对比图。Please refer to FIG. 4 and FIG. 5 . FIG. 4 is a comparison diagram of the variation of transmission delay with the number of users between the resource allocation method using the server provided by the embodiment of the present application and the resource allocation method in the prior art. FIG. 5 is a comparison diagram of the variation of transmission delay with the number of base stations between the resource allocation method using the server provided by the embodiment of the present application and the resource allocation method in the prior art.
图4表明两种方法的传输延迟将随着用户数量的增加而增加，但本发明提供的一种服务器的资源分配方法具有更小的传输延迟，用户数量从10到50不等，本地基站服务器60数量为10。用户的增加将导致整个协作空间对资源的需求增加，因此传输延迟将增加，由于本发明中的核心移动边缘计算服务器50可以提高流行资源的分配效率，而与现有技术中的资源分配方法相比，本发明具有更小的延迟。Figure 4 shows that the transmission delay of the two methods will increase with the increase of the number of users, but the resource allocation method of a server provided by the present invention has a smaller transmission delay, the number of users varies from 10 to 50, and the local base station server 60 is 10 in quantity. The increase of users will lead to an increase in the demand for resources in the entire collaborative space, so the transmission delay will increase, because the core mobile edge computing server 50 in the present invention can improve the allocation efficiency of popular resources, which is different from the resource allocation method in the prior art. Compared with the present invention, the delay is smaller.
图5表明当用户数量固定时，随着本地基站服务器60数量的增加，有四十个用户，本地基站服务器60数量从五个增加到十一个，由于每个本地基站服务器60可以覆盖有限的范围，随着本地基站服务器60的数量增加，接入用户的数量增加。因此，整个协作区间80内用户所需的总资源将增加，并且传输延迟也将增加。Figure 5 shows that when the number of users is fixed, with the increase of the number of local base station servers 60, there are forty users, and the number of local base station servers 60 increases from five to eleven, since each local base station server 60 can cover a limited area of As the number of local base station servers 60 increases, the number of access users increases. Therefore, the total resources required by the users throughout the cooperation interval 80 will increase, and the transmission delay will also increase.
综上所述，本发明在协作区间80内的核心移动边缘计算服务器50拥有最好的资源，能够大概率满足用户需求，从而缩短传输时延，而且本发明在网络拥塞时仍然可以在协作区间80内的任意服务器请求资源，计算方式简单、用户的服务质量不容易受到影响。To sum up, the core mobile edge computing server 50 in the cooperation area 80 of the present invention has the best resources, and can meet the needs of users with a high probability, thereby shortening the transmission delay, and the present invention can still be used in the cooperation area when the network is congested. Any server within 80 requests resources, the calculation method is simple, and the user's service quality is not easily affected.
上述实施例仅例示性说明本发明的原理及其功效，而非用于限制本发明。任何熟悉此技术的人士皆可在不违背本发明的精神及范畴下，对上述实施例进行修饰或改变。因此，举凡所属技术领域中具有通常知识者在未脱离本发明所揭示的精神与技术思想下所完成的一切等效修饰或改变，仍应由本发明的权利要求所涵盖。The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present invention should still be covered by the claims of the present invention.
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| CN201811305095.2ACN109474681A (en) | 2018-11-05 | 2018-11-05 | Resource allocation method, system and server system for mobile edge computing server |
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