CN112788088B - Network communication control method of multi-edge cloud and edge operation system - Google Patents
Network communication control method of multi-edge cloud and edge operation system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0659—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities
- H04L41/0661—Management of faults, events, alarms or notifications using network fault recovery by isolating or reconfiguring faulty entities by reconfiguring faulty entities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/101—Server selection for load balancing based on network conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
Abstract
The invention discloses a network communication control method of a multi-edge cloud, which comprises the steps of providing a target service of a terminal device by a first edge operation platform, judging the abnormal service condition of the first edge operation platform by a central control platform, reconfiguring the target service to a second edge operation platform by the central control platform according to the abnormal service condition, the target service and the operation information of the second edge operation platform, generating unloading information and a target service position, transmitting the unloading information to the second edge operation platform by the central control platform, and transmitting the target service position to the terminal device by the first edge operation platform or the second edge operation platform, so that the terminal device is in communication connection with the second edge operation platform according to the target service position. The offloading information at least includes identity information of the terminal device and identity information of the target service.
Description
Technical Field
The present invention relates to a network communication control method, and in particular, to a network communication control method for a multi-edge cloud.
Background
With the popularization of mobile devices and the wide application of network services, such as video streaming, virtual reality, automatic driving, etc., and the increasing of business services extending to network services in various industries, the demand of mobile network traffic is continuously increasing, so that the load traffic of a general Backhaul (Backhaul) network is not enough, and the remote cloud computing center cannot load huge computing load. Previous network architectures have faced considerable challenges with the increasing advancement of communication technology.
In response to the above situation, a mobile edge computing (Mobile Edge Computing, MEC) architecture has been proposed to solve the problem of increasing traffic demand and computation. As literally, mobile edge operations are environments that provide cloud computing capabilities and information technology (Information Technology, IT) services at the edges of mobile networks, the main concept being to reduce the computing pressure of core network devices and provide a platform for mobile operators to create specific mobile experiences for customers. However, when the mobile edge computing architecture encounters an anomaly, the entire communication environment needs to be re-established, which consumes a lot of time, and thus the experience of the user is poor.
Disclosure of Invention
In view of the above, the present invention provides a network communication control method and an edge computing system for a multi-edge cloud.
According to the network communication control method of the multi-edge cloud, which is provided by the embodiment of the invention, the network communication control method is suitable for a first edge operation platform, a second edge operation platform and a central control platform, wherein the central control platform is used for carrying out information transmission with the first edge operation platform and the second edge operation platform. The network communication control method comprises the following steps: providing a target service of the terminal device by using the first edge operation platform; judging the abnormal service condition of the first edge operation platform by using the central control platform; the central control platform reconfigures the target service to the second edge operation platform according to the service abnormal condition, the target service and the operation information of the second edge operation platform and generates unloading information and a target service position; transmitting unloading information to a second edge operation platform by a central control platform; and transmitting the target service position to the terminal device by the first edge operation platform or the second edge operation platform, so that the terminal device is in communication connection with the second edge operation platform according to the target service position. The offloading information at least includes identity information of the terminal device and identity information of the target service.
According to an embodiment of the invention, an edge computing system comprises an edge computing device and a central control device, wherein the edge computing device and the central control device are in communication connection with each other. The edge computing device is used for providing a target service for the terminal device. The central control device is used for reconfiguring the target service to the other edge computing device and generating unloading information and a target service position according to the service abnormal condition, the target service and the computing information of the other edge computing device when the edge computing device is judged to have the service abnormal condition. The central control device is also used for transmitting unloading information to the other edge computing device, and enabling the first edge computing platform or the second edge computing platform to transmit the target service position to the terminal device, so that the terminal device is in communication connection with the other edge computing device according to the target service position. The offloading information at least includes identity information of the terminal device and identity information of the target service.
With the structure, the network communication control method and the edge computing system of the multi-edge cloud can execute the reconfiguration of the edge computing platform for providing the service according to various service abnormal conditions, the whole communication environment is not required to be rebuilt when the service abnormal conditions are encountered, the dynamic deployment capability without interruption of the service can be provided, and the load balancing capability and the remote backup capability can be provided.
The foregoing description of the invention and the following description of embodiments are provided to illustrate and explain the spirit and principles of the invention and to provide a further explanation of the invention as claimed.
Drawings
FIG. 1 is a schematic diagram of a communication environment of an edge computing system according to an embodiment of the invention;
FIG. 2 is a block diagram of an edge computing system according to an embodiment of the invention;
FIG. 3 is a flow chart of a method for controlling network communication of a multi-edge cloud according to an embodiment of the invention;
FIG. 4 is a schematic signal transmission diagram of a network communication control method of a multi-edge cloud according to an embodiment of the invention;
FIG. 5 is a schematic signal transmission diagram of a network communication control method of a multi-edge cloud according to another embodiment of the present invention;
FIG. 6 is a partial flow chart of a method for controlling network communication of a multi-edge cloud according to an embodiment of the invention;
FIG. 7 is a functional block diagram of an edge computing device according to another embodiment of the invention.
Symbol description:
1. edge computing system
11. First edge computing device
111. 131 user interface functional module
112. 132 domain name service module
113. 135 resource management module
114. Service management module
115. First service module
116. Second service module
133. Service location management module
134. Service redirection module
13. Central control device
21. Terminal device
31. Second edge computing device
10. Edge computing device
101. Memory device
103. Processor and method for controlling the same
S11-S15 step
A11-A19 steps
A21-A27 steps
S21-S24 steps
Detailed Description
The detailed features and advantages of the present invention will be set forth in the following detailed description of the embodiments, which is provided to enable any person skilled in the art to make and use the present invention, and the related objects and advantages of the present invention will be readily apparent to any person skilled in the art from the present disclosure, claims and drawings. The following examples further illustrate the aspects of the invention in detail, but are not intended to limit the scope of the invention in any way.
The present invention provides an edge computing system, please refer to fig. 1 and fig. 2, wherein fig. 1 is a schematic diagram of a communication environment of the edge computing system according to an embodiment of the present invention, and fig. 2 is a functional block diagram of the edge computing system according to an embodiment of the present invention. As shown in fig. 1, the edge computing system 1 includes a first edge computing device 11 and a central control device 13, which are communicatively connected to each other, and the edge computing system 1 may be communicatively connected to a terminal device 21 or may be communicatively connected to a second edge computing device 31. Further, the first edge computing device 11 may be communicatively connected to the terminal device 21, and the central control device 13 may be communicatively connected to the second edge computing device 31. It should be noted here that the number of the terminal devices 21 and the second edge computing devices 31 connected to the edge computing system 1 shown in fig. 1 is merely an example, and the edge computing system 1 may be connected to a plurality of terminal devices 21 and a plurality of second edge computing devices 31 at the same time. In addition, the second edge computing device 31 may also be connected to one or more terminal devices 21.
The first edge computing device 11 may be a mobile edge computing (Mobile Edge Computing, MEC) cloud, which may be simply referred to as an edge cloud. The first edge computing device 11 is used for providing one or more services of the terminal device 21. The first edge computing device 11 may be connected to the terminal device 21 through a base station. In terms of network architecture, the first edge computing device 11 is located at the network edge and relatively close to the terminal device 21 at the user end. In detail, the network architecture may be a Cloud server (Cloud server) or the Internet (Internet) as a network core, and the terminal device 21 is located at the periphery of the network architecture and connected to the Cloud server or the Internet via a network, and the network edge may refer to a boundary between the Internet and a local area network (Local Area Network, LAN) relatively close to the user end where the terminal device 21 is located, but is not limited thereto. Furthermore, the first edge computing device 11 may be a single server with computing capability, or may be composed of a plurality of servers with different functions and connected to each other, and the terminal device 21 is a mobile electronic device such as a smart phone, a tablet, a notebook, etc., which is not limited in the present invention.
Further, as shown in fig. 2, the first edge computing device 11 may include a user interface function (User Plan Function, UPF) module 111, a domain name service (Domain Name Service, DNS) module 112, a resource management module 113, a service management module 114, a first service module 115, and a second service module 116. The user interface function module 111 of the first edge computing device 11 may be connected to the first service module 115 and the second service module 116 through an N6 interface, or may be connected to the base station through an N3 interface, and then connected to the terminal device 21 through the base station. The domain name service module 112 may respond to the service location query received from the terminal device 21 and wake up the corresponding service. For example, when the user issues a query for the service location of "www.youtube.com" via the terminal device 21, the domain name service module 112 responds to "10.14.188.Xxx" to the terminal device 21 and wakes up the YouTube service. The resource management module 113 can monitor, sort and manage the resource status of the first edge computing device 11; the service management module 114 can monitor the operation status of the first service module 115 and the second service module 116, monitor the service operation status, and report back when an error occurs, or can start a new service module (for this embodiment, the modules other than the first and second service modules 115 and 116); the first service module 115 and the second service module 116 may provide one or more network services, respectively.
The modules may be servers that are independently disposed and connected to each other, or may be multiple applications running on one or more servers, and the invention is not limited to the number of physical servers on which the modules are running. In addition, it should be specifically noted that fig. 2 exemplarily illustrates that the first edge computing device 11 includes two service modules (the first service module 115 and the second service module 116), however, the first edge computing device 11 may also include only one or more than two service modules, and the enabling states of the service modules may be dynamically adjusted, where the enabling states indicate whether the service can be provided, for example. By providing the service to the terminal device 21 by the service module of the first edge computing device 11, the first edge computing device 11 can perform more complicated computation, and the computation load of the terminal device 21 can be reduced. The first edge computing device 11 may also provide a service for storing or processing information that the terminal device 21 may access. The above-mentioned services are merely illustrative, however, the services provided by the first edge computing device 11 are not limited thereto.
The central control device 13 is, for example, a coordination flow device (coordination device), especially a data center of a 5G core, and is used for transmitting information with the first edge computing device 11 and the second edge computing device 31. The second edge computing device 31 may have the same architecture and function as the first edge computing device 11. The second edge computing device 31 may be a mobile edge computing cloud for providing one or more services to the terminal device. Further, the second edge computing device 31 may be a single server with computing capability, or may be composed of a plurality of servers with different functions and connected to each other. The second edge computing device 31 may also include a user interface function module, a domain name service module, a resource management module, a service management module, and one or more service modules as described above. The second edge computing device 31 may differ from the first edge computing device 11 in terms of the resource status (e.g., how many), the number and type of services that can be provided, and the delay (Latency) that may be incurred in providing the services to a particular terminal device.
In addition, the central control device 13 may be communicatively connected to more edge computing devices than the first and second edge computing devices 11 and 31, so as to collect information of each edge computing device, such as device Identification (ID), device location (e.g., IP of the edge computing device), service ID, service location (e.g., IP of a corresponding service module), connected terminal device ID, resource status, delay, etc., particularly periodically. The central control device 13 can configure the communication connection relationship between the plurality of terminal devices and the plurality of edge computing devices according to the collected information. Furthermore, the central control device 13 of the present invention can allocate the terminal device to a specific edge computing device according to the requirement of the terminal device, and can be reconfigured according to the status of the edge computing device, wherein further implementation methods will be described later.
Further to the architecture of the central control device 13, as shown in fig. 2, the central control device 13 may include a user interface function module 131, a domain name service module 132, a service location management module 133, a service redirection module 134, and a resource management module 135. The user interface function module 131 of the central control device 13 may be connected to the user interface function module 111 of the first edge computing device 11 through an N9 interface, and similarly, the user interface function module 131 may also be connected to other edge computing devices through an N9 interface. The dns module 132 has the same functions as the dns module 112 described above, and will not be described again. The service location management module 133 may have a database for recording services that each of the edge computing devices connected to the central control device 13 can provide, for example, a service ID, and the service location management module 133 may perform service reconfiguration in cooperation with the service redirection module 134 or the resource management module 135, wherein detailed implementation of the reconfiguration will be described later. The modules may each be a server independently disposed and connected to each other, or may be a plurality of applications running on one or more servers, and the present invention is not limited to the number of physical servers running the modules. In other words, the central control device 13 may be implemented as a single server, or may be composed of a plurality of servers with different functions. In another embodiment, the central control device 13 may be a mobile edge computing cloud with a central control function, and may be connected to the terminal device 21 through a base station and provide services to the terminal device 21. In this embodiment, the central control device 13 may further include a service management module and one or more service modules in addition to the aforementioned modules.
The present invention also provides a network communication control method of the multi-edge cloud, please refer to fig. 1-3, wherein fig. 3 is a flowchart of a network communication control method of the multi-edge cloud according to an embodiment of the present invention. As shown in fig. 3, the network communication control method of the multi-edge cloud may include step S11: providing a target service of the terminal device by using the first edge operation platform; step S12: judging the abnormal service condition of the first edge operation platform by using the central control platform; step S13: the central control platform reconfigures the target service to the second edge operation platform according to the service abnormal condition, the target service and the operation information of the second edge operation platform, and generates unloading (Offload) information and a target service position; step S14: transmitting unloading information to a second edge operation platform by a central control platform; step S15: the target service position is transmitted to the terminal device by the first edge operation platform or the second edge operation platform, so that the terminal device is connected to the second edge operation platform according to the target service position in a communication mode.
In an embodiment, the first edge computing platform, the second edge computing platform and the central control platform are implemented by the first edge computing device 11, the second edge computing device 31 and the central control device 13 of fig. 1 and 2, respectively; in another embodiment, the first edge computing platform, the second edge computing platform, and the central control platform may be application programs running on Virtual machines (Virtual machines) in the server. The network communication control method of the multi-edge cloud shown in fig. 3 will be exemplarily described below with the first edge computing platform, the second edge computing platform, and the central control platform implemented by the first edge computing device 11, the second edge computing device 31, and the central control device 13.
In step S11, the first edge computing device 11 provides the terminal device 21 with a target service, wherein the target service is an application service such as artificial intelligence, virtual reality, augmented reality, autopilot, etc., and the invention is not limited thereto. Further, the communication connection between the first edge computing device 11 and the terminal device 21 is determined by the central control device 13 according to the computing information of the first edge computing device 11, wherein the computing information includes the resource status and the delay of the first edge computing device 11 providing the target service. In step S12, the central control device 13 determines that the first edge computing device 11 has an abnormal Service condition, wherein the abnormal Service condition may indicate a Service Down (Service Down), a Service Out (Service Swap Out), or a platform disable (MEC Down). In response to the abnormal service condition, in step S13-step S15, the central control device 13 performs reconfiguration to enable the other edge computing device (the second edge computing device 31) to provide the target service (i.e. the service provided by the original first edge computing device 11) to the terminal device 21.
Referring to fig. 1 to fig. 4, fig. 4 is a schematic signal transmission diagram of a network communication control method of a multi-edge cloud according to an embodiment of the invention. In the operation state where the abnormal service condition is out of service or out of service, as shown in step a11 of fig. 4, the central control device 13 may receive a service failure signal associated with the abnormal service condition from the first edge computing device 11, thereby determining that the abnormal service condition occurs in the first edge computing device 11.
In particular, the service suspension may refer to that the service module that originally provided the target service of the terminal device 21 is disabled and cannot continue to provide the target service, and at this time, the service management module 114 may generate a corresponding service disabling signal and provide the service disabling signal to the service location management module 133 of the central control device 13. In addition, service removal may refer to: when the resource management module 113 of the first edge computing device 11 determines that the resource is insufficient, the service management module 114 removes the service with the priority order for the latter, for example, disables the corresponding service module or provides other services instead, where the priority order can be set according to the actual requirement, and the invention is not limited. When the service management module 114 determines that the removed service is the target service originally provided to the terminal device 21, the service management module 114 may generate a corresponding service failure signal and provide the service failure signal to the service location management module 133 of the central control device 13. The service disable signal corresponding to the service suspension or removal may include the ID of the first edge computing device 11, the ID of the target service, and the ID of one or more terminal devices 21 connected to the edge computing platform having the abnormality.
When the service location management module 133 of the central control device 13 receives the service failure signal and knows that the first edge computing device 11 has an abnormal service condition, the service location management module 133 and the service redirection module 134 can reconfigure accordingly. In this embodiment, the reconfiguration includes a relocation (Re-locate) procedure and a redirection (Re-direct) procedure. Wherein the repositioning procedure (step a 12) may comprise: selecting an edge computing device capable of providing the target service as a candidate edge computing platform, and determining the target edge computing platform according to the computing information of the candidate edge computing platform. As described above, the central control device 13 may periodically collect information such as the resource status of the connected one or more edge computing devices and the delay of the provided service. Further, the service location management module 133 of the central control device 13 may obtain the target service ID from the service failure signal, select the edge computing device including the service module with the target service ID as the candidate edge computing platform, and then select the edge computing device with the best computing information from the candidate edge computing platforms as the target edge computing platform, i.e. the edge computing platform expected to continuously provide the target service to the terminal device 21.
The determination of the optimal operation information may have different criteria depending on the type of the target service. For example, for a virtual reality service, bandwidth resource status may be a main consideration, but the invention is not limited thereto. In addition, the number of terminal devices 21 having the target service requirement is also one of the important factors, and the service location management module 133 can determine whether the resource status of the candidate edge computing platform is sufficient to provide the target service to the number of terminal devices 21 by knowing the number of terminal devices 21 having the target service requirement from the ID of the terminal device 21 included in the service failure signal. In particular, in a mobile edge computing environment, the delay of providing the target service may be a primary consideration, and further, the service location management module 133 may select the candidate edge computing platform with the lowest delay from among candidate edge computing platforms whose resource conditions meet a specific criterion as the target edge computing platform. Further, the specific criterion may be a minimum threshold capable of providing the target service to the terminal device 21.
When the service location management module 133 determines the target edge computing platform by executing the above-mentioned relocation procedure, a redirection request is generated and sent to the service redirection module 134 (step a 13). The redirection request includes the ID of the target edge computing platform, the target service ID, and the ID of the terminal device 21. In the embodiment of fig. 3, the second edge computing device 31 is selected as the target edge computing platform by the service location management module 133, so that in this embodiment, the redirection request includes the ID of the second edge computing device 31. The service redirection module 134 transmits the redirection information to the first edge computing device 11 according to the redirection request (step a 14), i.e. the aforementioned redirection procedure. The redirection information may include the ID of the second edge computing device 31, the ID of the terminal device 21, and the target service ID. Furthermore, the user interface function 111 of the first edge computing device 11 can, depending on the redirection information, set up a connection establishment request for the terminal device 21 to the user interface function of the second edge computing device 13, in particular to establish a connection (Session Connection) of the terminal device 21 via the N9 interface. Further, the first edge computing device 11 returns an Acknowledgement (ACK) to the service redirection module 134 when receiving the redirection information, so as to indicate that the redirection information is successfully delivered.
The central control device 13 reconfigures the target service to the second edge computing device 31 through the above-mentioned program, and generates the offload information and the target service location, and transmits the offload information to the second edge computing device 31 and the target service location to the terminal device 21, respectively. Further, the service redirection module 134 of the central control device 13 transmits the offloading information to the second edge computing device 31 (step a 15). Furthermore, the service redirection module 134 waits for the first edge computing device 11 to return the confirmation message corresponding to the step a14, and then performs the step a15. In this embodiment, the offload information includes the ID of the first edge computing device 11, the ID of the terminal device 21, and the target service ID. The second edge computing device 31 can agree with the connection establishment request of the first edge computing device 11 according to the offloading information. In short, the first edge computing device 11 and the second edge computing device 31 can acquire the redirection information and the offloading information from the central control device 13, respectively, so as to establish a connection with the other party regarding the terminal device 21 and the target service. In addition, when receiving the offload information, the second edge computing device 31 may obtain the location information (e.g. IP) of the corresponding service module as the target service location according to the target service ID in the offload information, and send a confirmation message back to the service redirection module 134 to indicate that the offload information is successfully delivered. In particular, this corresponds to the confirmation information at step a15 including the target service location.
The service redirection module 134 of the central control device 13 further transmits the target service location to the terminal device 21 through the first edge computing device 11. Further, the service redirection module 134 may wait for the second edge computing device 31 to return the confirmation information corresponding to step a15, obtain the target service location from the confirmation information, and transmit the ID of the terminal device 21 and the target service location to the first edge computing device 11 (step a 16). The first edge computing device 11 acquires the target service location from the central control device 13, and can transmit the target service location to the terminal device 21 according to the ID of the terminal device 21 (step a 17). In particular, the information transfer in the steps a16 and a17 may be performed by a domain name service notification (DNS Notify), HTTP 301, or HTTP 302. After acquiring the target service location, the terminal device 21 is accordingly connected to the service module of the second edge computing device 31 for providing the target service through the connection between the first edge computing device 11 and the second edge computing device 31 (steps a18 and a 19).
In addition to the above-described abnormal service condition corresponding to the out-of-service or out-of-service condition, the network communication control method shown in fig. 3 may also correspond to the abnormal service condition of the platform disabling. Referring to fig. 1-3 and fig. 5, fig. 5 is a signal transmission schematic diagram of a network communication control method of a multi-edge cloud according to another embodiment of the invention. In the embodiment shown in fig. 5, the resource management module 135 of the central control device 13 may periodically obtain its information from the first edge computing device 11. When the resource management module 135 determines that a specific time period has elapsed without receiving information from the first edge computing device 11 (step a 21), it may determine that the first edge computing device 11 is disabled. The central control device 13 can then be reconfigured. In this embodiment, the resource management module 135 generates a relocation request according to the abnormal service condition and transmits the relocation request to the service location management module 133 (step a 22). Further, the relocation request may include the ID of the first edge computing device 11 and the ID of the terminal device 21 connected to the first edge computing device 11.
The service location management module 133 performs a relocation procedure according to the relocation request to generate a relocation reply and returns the relocation reply to the resource management module 135 (step a 23). As described above, the service location management module 133 may record the service ID of the service of each edge computing device connected to the central control device 13. Therefore, the relocation procedure may include obtaining one or more services of the first edge computing device 11 according to the ID of the first edge computing device 11, and taking the one or more services as the target services, and the implementation of selecting the candidate edge computing platform and the target edge computing platform is the same as the embodiment of fig. 4, which is not repeated herein. The relocation reply generated by the service location management module 133 may contain the ID of the target edge computing platform, the target service ID, and the ID of the terminal device 21. In the embodiment of fig. 3, the second edge computing device 31 is selected as the target edge computing platform by the service location management module 133, so that in this embodiment, the relocation reply includes the ID of the second edge computing device 31.
The central control device 13 reconfigures the target service to the second edge computing device 31 through the above-mentioned program, generates the offload information and the target service location, and transmits the offload information to the second edge computing device 31 and the target service location to the terminal device 21, respectively. Further, the resource management module 135 of the central control device 13 generates the offload information including the ID of the terminal device 21 and the target service ID according to the relocation reply and transmits the offload information to the second edge computing device 31 (step a 24). In this way, the second edge computing device 31 can learn that the target service is to be provided to the terminal device 21 according to the offloading information, and when the second edge computing device 31 receives the offloading information, it can obtain the location information (e.g. IP) of the corresponding service module as the target service location according to the target service ID in the offloading information, and send back a confirmation message to the resource management module 135 to indicate that the offloading information is successfully transmitted. In particular, this confirmation information includes the target service location.
The resource management module 135 of the central control device 13 further transmits the target service location to the terminal device 21 through the second edge computing device 31. Further, the resource management module 135 may transmit the ID of the terminal device 21 and the target service location to the second edge computing device 31 after the second edge computing device 31 returns the confirmation information (step a 25). The second edge computing device 31 acquires the target service location from the central control device 13, and can transmit the target service location to the terminal device 21 according to the ID of the terminal device 21 (step a 26). In particular, the information transfer in steps a25 and a26 may be performed by DNS Notify, HTTP 301, or HTTP 302. After acquiring the target service location, the terminal device 21 is accordingly connected to the service module of the second edge computing device 31 for providing the target service (step a 27). In particular, in this embodiment, before performing the edge computing platform conversion, the terminal device 21 is connected to the first edge computing device 11 and the second edge computing device 31 at the same time. Specifically, the base station to which the terminal device 21 is connected is originally connected to the first edge computing device 11 and the second edge computing device 31, respectively. The first edge computing device 11 is used as a main edge computing platform, the second edge computing device 31 is used as a backup edge computing platform, and the backup edge computing platform takes over the base station when the main edge computing platform fails.
In an embodiment, before the first edge computing device 11 provides the target service of the terminal device (i.e. step S11 in fig. 3), the network communication control method of the multi-edge cloud may further include a configuration procedure for the edge computing platform device registration and the service requirement for the terminal device 21. Referring to fig. 1, fig. 3, and fig. 6 together, fig. 6 is a partial flowchart of a network communication control method of a multi-edge cloud according to an embodiment of the invention. Prior to step S11 of fig. 3, the network communication control method of the multi-edge cloud may further include step S21 shown in fig. 6: a first edge operation platform is used for providing registration requirements for a central control platform; s22: providing the operation information of the first edge operation platform to the central control platform by using the first edge operation platform; s23: receiving a service request of the terminal device by a central control platform, and judging that the service request corresponds to a target service; s24: the central control platform configures the target service to the first edge operation platform according to the target service and the operation information of the first edge operation platform.
Further, the establishment of the communication environment shown in fig. 1 includes steps S21 to S24. Referring to fig. 1, in steps S21 and S22, the first edge computing device 11 makes a registration request to the central control device 13, the central control device 13 can establish a connection therebetween, and after the registration of the first edge computing device 11 is completed, the first edge computing device 11 can provide its own computing information (including resource status, delay, etc.) to the central control device 13, especially periodically. In addition, the second edge computing device 31 may also provide a registration request to the central control device 13 before the reconfiguration procedure is executed, and provide its own computing information to the central control device 13 after the registration is completed. In addition, there may be more edge computing devices that register with the central control device 13 and transmit their own computing information, and the present invention is not limited.
When the edge computing system 1 receives the service request of the terminal device 21, the central control device 13 determines that the service request corresponds to the target service and configures the target service according to the operation information of the target service and the registered edge computing device in steps S23 and S24. Further, the domain name service module of the first edge computing device 11, the second edge computing device 31 or other edge computing devices registered with the central control device 13 may receive a service request (e.g. service location query) of the terminal device 21 located in the communication range, and the edge computing device performing the receiving step may transmit its identity information, service identity information, and identity information of the terminal device 21 to the service location management module 133 of the central control device 13. In this embodiment, the central control device 13 configures the target service to the first edge computing device 11 according to the computing information of the first edge computing device 11 as the optimal computing information corresponding to the target service. The determination of the best operation information is illustrated and described in the same manner as the determination of the best operation information in the reconfiguration process of the previous embodiment, and thus will not be described in detail herein.
In addition, as described above, in an embodiment, the central control device 13 may be a mobile edge computing cloud with a central control function, and may be connected to the terminal device 21 through a base station and provide services to the terminal device 21. In this embodiment, the central control device 13 may take itself as one of the choices of the target edge computing platform when executing the configuration program or the reconfiguration program described in the foregoing embodiments. Specifically, the central control device 13 sets its own priority to be the last, that is, the central control device 13 determines whether it is suitable for providing the service after determining that all the connected edge computing devices are unsuitable for providing the service. In addition, when the central control device 13 determines that the edge-less computing device is able to provide service, a configuration failure signal is generated to the terminal device 21.
The present invention also provides an edge computing device architecture, and in particular, the first edge computing device 11 and the central control device 13 in the foregoing embodiments may have the device architecture. Referring to fig. 7, fig. 7 is a functional block diagram of an edge computing device according to another embodiment of the invention. As shown in fig. 7, the edge computing device 10 includes a memory 101 and a processor 103, and the processor 103 is electrically connected to the memory 101. The memory 101 is, for example, a flash memory, a read only memory, a magnetic memory or other nonvolatile storage medium. The memory 101 stores a plurality of instructions. Further, the instructions at least include instructions corresponding to the steps executed by the first edge computing device 11/the central control device 13 in the previous embodiment. The processor 103, such as a central processing unit, a microcontroller, a programmable logic controller, etc., can execute the instructions stored in the memory 101 to perform the steps performed by the first edge computing device 11/the central control device 13 described in the previous embodiment.
Through the architecture, the edge computing system, the edge computing device and the network communication control method of the multi-edge cloud suitable for the centralized communication environment can execute reconfiguration of the edge computing platform for providing the service according to various service abnormal conditions, the whole communication environment does not need to be rearranged when the service abnormal conditions are encountered, the dynamic deployment capability of uninterrupted service can be provided, and the load balancing capability and the remote backup capability can be provided.
Claims (20)
1. The utility model provides a network communication control method of polygonal edge cloud, is applicable to a first edge operation platform, a second edge operation platform and a well accuse platform, and this well accuse platform carries out information transfer with this first edge operation platform and this second edge operation platform, and this network communication control method includes:
providing a target service of a terminal device by the first edge operation platform;
judging that the first edge operation platform generates a service abnormal condition by the central control platform;
the central control platform reconfigures the target service to the second edge operation platform according to the service abnormal condition, the target service and operation information of the second edge operation platform, and generates unloading information and a target service position;
Transmitting the unloading information to the second edge operation platform by the central control platform; and
transmitting the target service position to the terminal device by the first edge operation platform or the second edge operation platform, so that the terminal device is connected to the second edge operation platform according to the target service position in a communication manner;
the offloading information at least includes an identity information of the terminal device and an identity information of the target service, and the target service location is an IP address of a service module capable of providing the target service.
2. The network communication control method according to claim 1, wherein the reconfiguring the target service to the second edge computing platform by the central control platform according to the service exception condition, the target service and the computing information of the second edge computing platform comprises:
selecting the second edge computing platform from the one or more candidate edge computing platforms according to the computing information of each candidate edge computing platform in the one or more candidate edge computing platforms and the target service; and
generating a redirection message according to the abnormal service condition and the selected result, and transmitting the redirection message to the first edge computing platform.
3. The network communication control method according to claim 2, wherein the offloading information further comprises an identity information of the first edge computing platform, and the network communication control method further comprises establishing a connection with the second edge computing platform by the first edge computing platform according to the redirection information.
4. The network communication control method according to claim 1, wherein transmitting the target service location to the terminal device with the first edge computing platform or the second edge computing platform comprises:
the first edge operation platform is used for obtaining the target service position from the central control platform and transmitting the target service position to the terminal device.
5. The network communication control method according to claim 1, wherein determining, by the central control platform, that the abnormal service condition occurs in the first edge computing platform comprises:
receiving a service failure signal associated with the abnormal service condition from the first edge computing platform by the central control platform;
wherein the service failure signal is generated by the first edge computing platform determining to move out the target service according to a priority.
6. The network communication control method according to claim 1, wherein determining, by the central control platform, that the abnormal service condition occurs in the first edge computing platform comprises:
Receiving a service failure signal associated with the abnormal service condition from the first edge computing platform by the central control platform;
wherein the service failure signal is generated by the first edge computing platform when the target service is suspended.
7. The network communication control method according to claim 1, wherein the abnormal service condition indicates that the first edge computing platform is disabled, and transmitting the target service location to the terminal device by the first edge computing platform or the second edge computing platform comprises:
the second edge computing platform is used for obtaining the target service position from the central control platform and transmitting the target service position to the terminal device.
8. The network communication control method according to claim 1, wherein determining, by the central control platform, that the abnormal service condition occurs in the first edge computing platform comprises:
when the central control platform judges that a specific time length passes and the information from the first edge operation platform is not received, the central control platform judges that the first edge operation platform is disabled.
9. The network communication control method according to claim 1, wherein the reconfiguring the target service to the second edge computing platform by the central control platform according to the service exception condition, the target service and the computing information of the second edge computing platform comprises:
Selecting one or more candidate edge computing platforms capable of providing the target service, wherein each of the one or more candidate edge computing platforms has computing information, the one or more candidate edge computing platforms comprises the second edge computing platform, and the computing information comprises resource status and delay corresponding to the target service; and
the computing information of the second edge computing platform is judged to be the optimal computing information, and the second edge computing platform is selected from the one or more candidate edge computing platforms.
10. The network communication control method according to claim 1, further comprising, before providing the target service of the terminal device with the first edge computing platform:
providing a registration request to the central control platform by the first edge operation platform;
providing an operation information of the first edge operation platform to the central control platform by the first edge operation platform;
receiving a service request of the terminal device by the central control platform, and judging that the service request corresponds to the target service; and
and the central control platform is used for configuring the target service to the first edge operation platform according to the target service and the operation information of the first edge operation platform.
11. An edge computing system, comprising:
an edge computing device for providing a target service for a terminal device; and
the central control device is in communication connection with the edge computing device, and is used for reconfiguring the target service to the other edge computing device and generating unloading information and a target service position according to the service abnormal condition, the target service and the operation information of the other edge computing device when judging that the edge computing device has the service abnormal condition, and transmitting the unloading information to the other edge computing device, and enabling the edge computing device or the other edge computing device to transmit the target service position to the terminal device, so that the terminal device is in communication connection with the other edge computing device according to the target service position;
the offloading information at least includes an identity information of the terminal device and an identity information of the target service, and the target service location is an IP address of a service module capable of providing the target service.
12. The edge computing system of claim 11, wherein the reconfiguration of the target service to the other edge computing device according to the service exception condition, the target service and the computing information of the other edge computing device performed by the central control device comprises:
Selecting the other edge computing device from the one or more candidate edge computing platforms according to the computing information of each candidate edge computing platform in the one or more candidate edge computing platforms and the target service; and
generating a redirection message according to the abnormal service condition and the selection, and transmitting the redirection message to the edge computing device.
13. The edge computing system of claim 12, wherein the offload information further comprises an identity of the edge computing device, and the edge computing device is further configured to establish a connection with another edge computing device based on the redirection information.
14. The edge computing system of claim 11, wherein the central control device is configured to cause the edge computing device or the other edge computing device to transmit the target service location to the terminal device by transmitting the target service location and the identity information of the terminal device to the edge computing device.
15. The edge computing system of claim 11, wherein the edge computing device is further configured to determine to move out the target service according to a priority to generate a service failure signal, and the central control device is further configured to receive the service failure signal from the edge computing device to determine that the edge computing device is out of service.
16. The edge computing system of claim 11, wherein the edge computing device is further configured to generate a service fail signal when the target service is suspended, and the central control device is further configured to receive the service fail signal from the edge computing device to determine that the edge computing device is out of service.
17. The edge computing system of claim 11, wherein the out-of-service condition indicates that the edge computing device is disabled and the central control device is configured to cause the edge computing device or the other edge computing device to transmit the target service location to the terminal device by transmitting the target service location to the other edge computing device.
18. The edge computing system of claim 11, wherein the central control device is further configured to determine that the edge computing device is disabled when it is determined that a specific time period has elapsed without receiving information from the edge computing device, so as to determine that the abnormal service condition occurs in the edge computing device.
19. The edge computing system of claim 11, wherein the reconfiguration of the target service to the other edge computing device according to the service exception condition, the target service and the computing information of the other edge computing device performed by the central control device comprises:
Selecting one or more candidate edge computing platforms capable of providing the target service, wherein each of the one or more candidate edge computing platforms has computing information, the one or more candidate edge computing platforms comprises the other edge computing device, and the computing information comprises resource status and delay corresponding to the target service; and
the computing information of the other edge computing device is judged to be the optimal computing information, and the other edge computing device is selected from the one or more candidate edge computing platforms.
20. The edge computing system of claim 11, wherein the edge computing device is further configured to, before providing the target service for the terminal device, provide a registration request to the central control device and provide computing information of the edge computing device to the central control device, and wherein the central control device is further configured to, before the edge computing device provides the target service for the terminal device, receive a service request for the terminal device, determine that the service request corresponds to the target service, and configure the target service to the edge computing device according to the target service and the computing information of the edge computing device.
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| JP6982639B2 (en) | 2021-12-17 |
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