CN112492005A

CN112492005A - Migration method, device and system of edge equipment

Info

Publication number: CN112492005A
Application number: CN202011298101.3A
Authority: CN
Inventors: 何涛; 曹畅; 李铭轩; 李建飞
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-03-12
Anticipated expiration: 2040-11-18
Also published as: CN112492005B

Abstract

The application provides a migration method, a migration device and a migration system of edge equipment, relates to the technical field of communication, reduces migration time of the edge equipment, and improves reliability of computing power measurement of computing resources and stability of the computing resources. The method comprises the following steps: acquiring an identifier of a first MEC device to which a first edge device belongs and an identifier of a second MEC device to which the first edge device belongs; if the identifier of the first MEC equipment is different from the identifier of the second MEC equipment; determining that a first edge device has migrated; recording the session after the first edge device is migrated; the migrated session includes an identifier of the first MEC device; and selecting a path containing the first MEC equipment from one or more backup paths stored by the computing power server as a main path after the migration of the first edge equipment, and using the computing power value of the main path after the migration stored by the computing power server as the computing power value after the migration of the first edge equipment.

Description

Migration method, device and system of edge equipment

Technical Field

Embodiments of the present application relate to the field of communications technologies, and in particular, to a method, an apparatus, and a system for migrating an edge device.

Background

The computing power network, which may also be a computing power system, may include: a plurality of edge devices, one or more multi-access edge computing (MEC) devices, and a computing power server. One MEC device can control and manage a plurality of edge devices within one area; the computing power server runs a computing power network platform and can control and manage a plurality of MEC devices; in a computing network, an edge device with free computing resources can establish a session with an MEC device, manage the MEC device through a computing server, and integrate the computing resources of a plurality of edge devices to realize the provision of computing services for users.

When the edge device is a removable device (e.g., a cell phone), the MEC device may be migrated as the edge device is moved. When the edge device is migrated from one MEC device (original MEC device) to the management range of another MEC device (new MEC device), the session between the edge device and the original MEC device is interrupted, the session with the new MEC device needs to be reestablished, and then the calculation strength value of the edge device under the migrated path is recalculated and used as a new calculation strength value; and then the calculation server provides calculation service with the magnitude of the new calculation magnitude value for the user through the migrated path.

However, the computing power server may use the original computing power value to provide the computing power service to the user before the computing power server recalculates the new computing power value. Therefore, on one hand, because the calculation strength values under different paths are generally different, when the original calculation strength value is used for continuously providing calculation strength service for the user, the reliability of the calculation strength and the stability of the calculation resources are possibly influenced; on the other hand, calculating the new calculation strength value needs to consume a certain time; resulting in longer migration times of the edge devices.

Disclosure of Invention

The application provides a migration method, a migration device and a migration system of edge equipment, which reduce the migration time of the edge equipment, and improve the reliability of computing power measurement of computing resources and the stability of the computing resources.

The technical scheme is as follows:

in a first aspect, the present application provides a migration method of an edge device, which may be applied to a computing power server, and the method may include: acquiring an identifier of a first multi-access edge computing MEC (MEC) device to which a first edge device belongs and an identifier of a second MEC device to which the first edge device belongs; the first MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the current moment, and the second MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the previous moment of the current moment; if the identifier of the first MEC equipment is different from the identifier of the second MEC equipment; determining that a first edge device has migrated; recording the session after the first edge device is migrated; the migrated session includes an identifier of the first MEC device; and selecting a path containing the first MEC equipment from one or more backup paths stored by the computing power server as a main path after the migration of the first edge equipment, and using the computing power value of the main path after the migration stored by the computing power server as the computing power value after the migration of the first edge equipment.

By the migration method of the edge device, a main path, one or more backup paths, a calculation strength value under the main path and a calculation strength value under each backup path, which can provide services for a user by the edge device, are pre-stored, when the edge device is determined to be migrated, a path corresponding to a new session is used as a new main path after the new session is established, and the calculation strength value under the new main path is used as a new calculation strength value; and providing the computational power service with the new computational power value size to the user through the new main path.

Therefore, on one hand, the new calculation strength value is pre-calculated and stored in the calculation strength server, and the new calculation strength value is directly selected during migration, so that the original process of calculating the new calculation strength value is reduced, and the migration time of the edge equipment is shortened. On the other hand, the new calculation strength value can be directly selected, so that the stage of providing service for the user by adopting the original calculation strength value in the first time period is removed, namely the new calculation strength value can be directly used for providing service for the user, and the reliability of calculation strength measurement of calculation resources and the stability of the calculation resources are improved.

With reference to the first aspect, in a possible implementation manner, the method may further include: acquiring one or more backup paths after the first edge device is migrated; respectively calculating a calculation strength value of the first edge device under each backup path in the one or more backup paths after migration; and saving the one or more backup paths after the migration of the first edge device, and the calculation strength value of the first edge device under each backup path in the one or more backup paths after the migration. In this possible implementation manner, the backup path after the migration of the first edge device and the calculation strength value under the backup path after the migration are saved, so that the time for migrating the edge device can be reduced when the subsequent first device is migrated again, and the reliability of the calculation strength of the calculation resource and the stability of the calculation resource are improved.

With reference to the first aspect or one of the foregoing possible implementation manners, in another possible implementation manner, the method may further include: detecting that a position of the first edge device at the first time is different from a position of the first edge device at the second time; determining that a position of the first edge device has changed; the first time and the second time are both behind the current time, and the first time is behind the second time; at a first time, acquiring one or more backup paths after the first edge device is migrated is performed. In this possible implementation manner, when the first edge device moves, the backup path of the first device and the calculation strength value under the backup path are calculated and stored, so that the calculation efficiency can be improved.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the computing power server stores a session before the migration of the first edge device, where the session before the migration includes an identifier of the second MEC device and an identifier of the first edge device; recording the session after the first edge device migration may include: and updating the identification of the second MEC equipment in the session before the migration of the first equipment to the identification of the first MEC equipment. In the possible implementation mode, a session updating mode is adopted, so that the session is not interrupted in the migration process, and the situation that computing resources of edge equipment cannot be used when the original session is interrupted is avoided.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner, the method may further include: and providing calculation capacity service of the calculation capacity value after migration to the user through the main path after migration. In the possible implementation mode, the calculation capacity service of the calculation capacity value after the migration is provided for the user, so that the reliability of the calculation capacity of the calculation resource and the stability of the calculation resource are improved.

In a second aspect, the present application further provides a migration apparatus for an edge device, where the apparatus may be a computing power server in the foregoing first aspect or any one of the possible implementations of the first aspect, or the apparatus may be deployed in the computing power server. The apparatus may include a first acquisition unit, a determination unit, a recording unit, and a selection unit. Wherein:

a first obtaining unit, configured to obtain an identifier of a first multi-access edge computing MEC device to which a first edge device belongs and an identifier of a second MEC device to which the first edge device belongs; the first MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the current moment, and the second MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the previous moment of the current moment.

A determining unit, configured to determine whether the identifier of the first MEC device is different from the identifier of the second MEC device; it is determined that the first edge device has migrated.

The recording unit is used for recording the session after the first edge device is migrated; the migrated session includes an identification of the first MEC device.

And the selecting unit is used for selecting a path containing the first MEC equipment from one or more backup paths stored by the computing power server as a main path after the migration of the first edge equipment, and taking the computing power magnitude value stored by the computing power server in the main path after the migration as the computing power magnitude value after the migration of the first edge equipment.

It should be noted that, the migration apparatus of the edge device provided in the second aspect is configured to execute the migration method of the edge device provided in the first aspect or any one of the possible implementation manners of the first aspect, and specific implementation of the foregoing first aspect may refer to specific implementation of the foregoing first aspect, and details are not described here.

In a third aspect, the present application provides a computing power server, and the apparatus may include a processor, configured to implement the migration method of the edge device described in the first aspect. The device may further include a memory, the memory being coupled to the processor, and the processor may implement the migration method of the edge device described in the first aspect or any one of the possible implementation manners of the first aspect when executing the instructions stored in the memory. The device may also include a communication interface for the apparatus to communicate with other devices, which may be, for example, a transceiver, circuit, bus, module, or other type of communication interface. In one possible implementation, the apparatus may include:

a memory may be used to store instructions.

A processor, configured to obtain an identifier of a first multi-access edge computing MEC device to which a first edge device belongs and an identifier of a second MEC device to which the first edge device belongs; the first MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the current moment, and the second MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the previous moment of the current moment; if the identifier of the first MEC equipment is different from the identifier of the second MEC equipment; determining that a first edge device has migrated; recording the session after the first edge device is migrated; the migrated session includes an identifier of the first MEC device; and selecting a path containing the first MEC equipment from one or more backup paths stored by the computing power server as a main path after the migration of the first edge equipment, and using the computing power value of the main path after the migration stored by the computing power server as the computing power value after the migration of the first edge equipment.

In the present application, the instructions in the memory may be stored in advance, or may be downloaded from the internet and stored when the apparatus is used. The coupling in the embodiments of the present application is an indirect coupling or connection between devices, units or modules, which may be in an electrical, mechanical or other form, and is used for information interaction between the devices, units or modules.

In a fourth aspect, a computational power system is provided, which may include a migration apparatus of an edge device, an MEC device, and an edge device, where the migration apparatus of the edge device may be an apparatus in the second aspect or any one of the possible implementations of the second aspect.

In a third aspect, a computing power system is provided, where the computing power system may include a computing power server, an MEC device, and an edge device, and the computing power server may be a server in the third aspect or any possible implementation manner of the third aspect.

In a sixth aspect, an embodiment of the present application further provides a computer-readable storage medium, which includes instructions, when executed on a computer, causing the computer to perform the migration method of the edge device according to any one of the above aspects or any one of the possible implementation manners.

In a seventh aspect, an embodiment of the present application further provides a computer program product, which when run on a computer, causes the computer to execute the migration method of the edge device according to any one of the above aspects or any one of the possible implementation manners.

In an eighth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor and may further include a memory, and is configured to implement the functions performed by the computing power server in the foregoing method. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

The solutions provided in the second aspect to the eighth aspect are used to implement the migration method of the edge device provided in the first aspect, and therefore the same beneficial effects as those of the first aspect can be achieved, and are not described herein again.

It should be noted that, on the premise of not contradicting the scheme, various possible implementation manners of any one of the above aspects may be combined.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a network architecture according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a computing power server provided in an embodiment of the present application;

fig. 3 is a schematic flowchart of a migration method of an edge device according to an embodiment of the present application;

fig. 4 is a schematic flowchart of another migration method for an edge device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a migration scene of an edge device according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a migration apparatus of an edge device according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of another migration apparatus for an edge device according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of another computing power server provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the embodiments of the present application, for convenience of clearly describing the technical solutions of the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items with substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance. The technical features described in the first and second descriptions have no sequence or magnitude order.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion for ease of understanding.

In the description of the present application, a "/" indicates a relationship in which the objects associated before and after are an "or", for example, a/B may indicate a or B; in the present application, "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. Also, in the description of the present application, "a plurality" means two or more than two unless otherwise specified. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

In the embodiments of the present application, at least one may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present application.

For the sake of understanding, the technical terms related to the present application are explained first.

The identification of a device may refer to information for uniquely indicating a device. For example, the identification of a device may be an Internet Protocol (IP) address, a Media Access Control (MAC) address, a code, or other of the device.

A session may refer to a process in which an edge device communicates with an MEC device. Wherein, a MEC device can establish a session with an edge device; the session may include an identification of the one MEC device and an identification of the one edge device.

The edge device may refer to a terminal device with computing capability connected to the MEC device, for example, the edge device may be a mobile phone, a computer, or the like.

Computation power refers to the data processing capacity that can be provided. Wherein, the calculation strength value of the computing resource in the edge device can also be referred to as the calculation strength value of the edge device for short; it may refer to data processing capability that an edge device may provide when it currently possesses computing resources to provide computing power services to a user via a path. For example, data processing capacity may be measured in terms of how many times per second floating point operations are performed.

A path, may refer to a line from an originating node to a destination node at the time of communication. Wherein the path of the application includes from the computing power server to the MEC device to the edge device; or from the edge device to the MEC device to the computing power server. Wherein, the path of an edge device can comprise a primary path and one or more backup paths; the main path is a path where the identifier of the MEC device in the session of the edge device is located.

Now, taking the migration of the edge device from the MEC device 1 to the MEC device 2 as an example, a migration process of the existing edge device will be described.

Wherein the force server can detect and monitor all MEC devices, as well as edge devices managed by each MEC device.

First, before migration, the MEC device 1 establishes a session 1 with the edge device, so the computing power server can provide the computing power service of the computing power magnitude (original computing power magnitude) of the MEC device 1 under the path 1 to the user through the path 1 (computing power server-MEC device 1-edge device and/or edge device-MEC device 1-computing power server).

Then, when the computation force server detects that the edge device is in the process of moving, the edge device is migrated from the management area range of the MEC device 1 to the management area range of the MEC device 2, and it is determined that the edge device has migrated.

The migrated edge device cannot communicate with the MEC device 2 through session 1, resulting in a session interruption. Then, when detecting that the edge device is located in the area range managed by the edge device, the MEC device 2 sends an indication message to the edge device to indicate that the edge device belongs to the management of the MEC device 2; the edge device then sends a session setup request to the MEC device 2 to establish session 2. After session 2 is successfully established, the MEC device 2 may communicate with the edge device over the new session. In one aspect, the computing power server may provide the computing power service of the original computing power value size to the user through the path 2 (computing power server-MEC device 2-edge device and/or edge device-MEC device 2-computing power server) in the first time period (after session 2 is successfully established until the new computing power value is calculated and completed). On the other hand, in the first time period, the computation power server computes the computation power value of the edge device 2 under the path 2 according to the parameters of the hardware device of the edge device, the bandwidth parameters of the edge device under the path 2, and the like, as a new computation power value.

In a second time period (after the calculation of the new calculation strength value is completed), the calculation strength server can provide calculation strength service of the new calculation strength value to the user through a path 2.

The process of establishing session 2 may be: the edge device sends a signaling message requesting to establish the session 2 to the MEC device 2, the MEC device 2 receives the request instruction, obtains the identifier of the edge device in the instruction, and establishes the session 2 with the edge device; session 2 includes the identity of the edge device and the identity of MEC device 2; and sets the lifetime of session 2 and monitors the duration of session 2 hold. The MEC equipment 2 sends a response that the session 2 is successfully established to the edge equipment; the edge device receives the response that the session 2 establishment is successful, which is sent by the MEC device 2.

It can be seen that when the edge device is migrated, the computing power server uses the original computing power value to provide the computing power service for the user in the first time period, i.e. before the computing power server recalculates the new computing power value. Therefore, on one hand, because the calculation strength values under different paths are generally different, when the original calculation strength value is used for continuously providing calculation strength service for the user, the reliability of the calculation strength and the stability of the calculation resources are possibly influenced; on the other hand, calculating the new calculation strength value needs to consume a certain time; resulting in longer migration times of the edge devices.

Based on this, the application provides a migration method of edge devices, which pre-stores a main path, one or more backup paths, a calculation strength value under the main path and a calculation strength value under each backup path, where the edge devices can provide services to users, and when it is determined that the edge devices are migrated, establishes a new session, and then takes a path corresponding to the new session as a new main path and a calculation strength value under the new main path as a new calculation strength value; and providing the computational power service with the new computational power value size to the user through the new main path.

In order to facilitate understanding of the implementation process of the scheme in the embodiment of the present application, a network architecture in the embodiment of the present application is first described. The migration method of the edge device in the embodiment of the present application may be applied to the following network architecture.

It should be noted that the network architecture and the scenario are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided by the embodiment of the present application, and as a person having ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided by the embodiment of the present application is also applicable to similar architectures and scenarios.

As shown in fig. 1, a schematic structural diagram of a network architecture is provided. As shown in fig. 1, the network 10 may include one or more edge devices 101, one or more MEC devices 102, and a computing power server 103. Wherein one MEC device 102 may communicate with one or more edge devices 101; the computing server 103 may communicate with one or more MEC devices 102.

Specifically, the network 10, may include a computational network; or other networks that evolve on the basis of computational power networks; or other networks similar to computational power networks.

The edge device 101 may also be referred to as a User Equipment (UE) or a terminal (terminal). An edge device 101 that may be used to establish a session with the MEC device 102; the edge device 101 may also be used to communicate data with the MEC device; or the edge device 101 may also be used to provide computing resources to the user. Among other things, the edge device 101 may include, but is not limited to, a mobile phone (mobile phone), a tablet computer (tablet computer), a laptop computer (laptop computer), a wearable device (such as a smart watch, a smart bracelet, a smart helmet, smart glasses), and other devices with wireless access capability, such as a smart car, various internet of things (IOT) devices, including various smart home devices (such as a smart meter and a smart home appliance), and smart city devices (such as a security or monitoring device, a smart road transportation facility), and so on.

MEC equipment 102 may be used to manage and control the edge equipment 101. Illustratively, the MEC device 102 may be used to establish a session with the edge device 101; the MEC device 102 may also be used to transfer data with the edge device 101. The MEC device 102 may be an electronic device having a certain data processing capability and related idle resources, such as a physical server and a cloud server.

The computing power server 103 is used for operating a computing power network platform, and can control and manage the MEC equipment 102 through the computing power network platform. Illustratively, the computing power server 103 may be used to manage migration of the edge devices 101.

It should be noted that, in the embodiment of the present application, the number, the connection mode, and the like of each device included in the network architecture are not specifically limited; the network architecture shown in fig. 1 is only an exemplary architecture diagram.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

In one aspect, an embodiment of the present application provides a migration apparatus for an edge device, which is used to execute the migration method for an edge device provided by the present application. The migration apparatus of the edge device may be the computing power server 103 of fig. 1; alternatively, the migration apparatus of the edge device may be deployed in the computing power server 103 of fig. 1; alternatively, the migration apparatus of the edge device may be another device that can exchange information with the force server 103 of fig. 1.

Fig. 2 is a schematic structural diagram of a computing power server 20 according to an embodiment of the present disclosure, and as shown in fig. 2, the computing power server 20 may include at least one processor 21, a memory 22, a communication interface 23, and a communication bus 24. The following describes the components of the computing power server 20 in detail with reference to fig. 2:

the processor 21 may be a single processor or may be a general term for a plurality of processing elements. For example, the processor 21 is a Central Processing Unit (CPU), and may be an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, such as: one or more microprocessors (digital signal processors, DSPs), or one or more Field Programmable Gate Arrays (FPGAs).

The processor 21 may perform various functions by running or executing software programs stored in the memory 22, and calling data stored in the memory 22, among other things. In particular implementations, processor 21 may include one or more CPUs such as CPU0 and CPU1 shown in fig. 2 as one example.

In particular implementations, the computing power server 20 may include a plurality of processors, such as the processor 21 and the processor 25 shown in FIG. 2, as one embodiment. Each of these processors may be a single-Core Processor (CPU) or a multi-Core Processor (CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The memory 22 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 22 may be self-contained and coupled to the processor 21 via a communication bus 24. The memory 22 may also be integrated with the processor 21. The memory 22 is used for storing software programs for executing the scheme of the application, and is controlled by the processor 21 to execute.

The communication interface 23 is any device, such as a transceiver, for communicating with other devices or communication networks, such as ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), etc.

The communication bus 24 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 2, but it is not intended that there be only one bus or one type of bus.

It should be noted that the components shown in fig. 2 do not constitute a limitation of the computing power server, and that the computing power server may include more or less components than those shown, or some components in combination, or a different arrangement of components than those shown in fig. 2.

Specifically, the computation server 20 stores a main path, one or more backup paths, a computation power value in the main path, and a computation power value in each backup path, where the first edge device provides computation power service to the user; the first edge device is any edge device which establishes connection with the computing power server; the processor 21 performs the following functions by running or executing software programs and/or modules stored in the memory 22 and calling data stored in the memory 22:

acquiring an identifier of a first multi-access edge computing MEC (MEC) device to which a first edge device belongs and an identifier of a second MEC device to which the first edge device belongs; the first MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the current moment, and the second MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the previous moment of the current moment; if the identifier of the first MEC equipment is different from the identifier of the second MEC equipment; determining that a first edge device has migrated; recording the session after the first edge device is migrated; the migrated session includes an identifier of the first MEC device; and selecting a path containing the first MEC equipment from the one or more backup paths as a main path after the migration of the first edge equipment, and taking the calculation strength value under the main path after the migration as the calculation strength value after the migration of the first edge equipment.

On the other hand, the embodiment of the present application provides a migration method of an edge device, which can be applied to the computing power server 20 shown in fig. 2.

It should be noted that the migration method of the edge device provided in the embodiment of the present application may be applied to a computing power server in the network shown in fig. 1, and is used in a migration process of the edge device. For each edge device, the migration implementation process is similar, and the migration process is now described by taking the first edge device as an example, and the rest is not described again.

Wherein, the first edge device is any edge device which establishes connection with the computing power server.

Specifically, fig. 3 is a flowchart of a migration method of an edge device according to an embodiment of the present application, and as shown in fig. 3, the method may include:

s301, the calculation force server obtains an identifier of a first MEC device to which the first edge device belongs and an identifier of a second MEC device to which the first edge device belongs.

The first MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the current moment, and the second MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the previous moment of the current moment.

The computing server may detect and monitor all MEC devices, as well as the edge devices managed by each MEC device. Specifically, S301 may be implemented as: the calculation server may obtain, in real time, an identifier of the MEC device to which the first edge device belongs, use, as the identifier of the first MEC device, an identifier of the MEC device to which the first edge device belongs at a position at the current time, and use, as the identifier of the second MEC device, an identifier of the MEC device to which the first edge device belongs at a position at the previous time.

S302, the calculation server judges whether the identifier of the first MEC equipment is different from the identifier of the second MEC equipment; it is determined that the first edge device has migrated.

Specifically, S302 may be implemented as: the calculation server determines whether the identifier of the first MEC device obtained in S301 is the same as the identifier of the second MEC device, and determines that the first edge device has migrated if the identifier of the first MEC device obtained in S301 is different from the identifier of the second MEC device, that is, the edge device belongs to different MEC device management at the current time and the previous time.

Optionally, if the identifier of the first MEC device obtained in S301 is the same as the identifier of the second MEC device, that is, the edge device belongs to the same MEC device management at the current time and the previous time, it is determined that the first edge device has not migrated.

The specific content of the identifier of the first edge device may be configured according to actual requirements, which is not specifically limited in the embodiments of the present application.

Illustratively, the identification of the first edge device may include, but is not limited to, any of: MAC address of the first edge device, IP address of the first edge device.

S303, the computing power server records the session after the first edge device is migrated.

Wherein the migrated session may include an identification of the first MEC device.

The specific content of the identifier of the first MEC device may be configured according to actual requirements, which is not limited in this embodiment of the present application.

Illustratively, the identification of the first MEC device may be an IP address of the first MEC device.

Wherein, the implementation of S303 may include, but is not limited to, scheme 1 or scheme 2 below.

In the scheme 1, the first edge device establishes the session after the migration of the first edge device with reference to the process of establishing the session 2, and then the computing power server and the first edge device record the session after the migration of the first edge device respectively.

For a specific implementation, reference may be made to the description of establishing session 2, which is not described herein again.

It should be noted that, when the method of scheme 1 is adopted to implement S303, the original session (the session between the edge device and the second MEC device) is interrupted, and then a new session is re-established through scheme 1.

And 2, updating the session before the first edge device is migrated by the computing power server according to the identifier of the first MEC device to be used as the session after the first edge device is migrated.

The computing power server stores a session before the migration of the first edge device in advance, wherein the session before the migration of the first edge device comprises the identification of the second MEC device and the identification of the first edge device. In scheme 2, when detecting that the identifier of the second MEC device included in the session before migration is different from the device identifier of the first MEC device, the first MEC device sends an instruction for requesting update to the computation server, where the instruction includes the identifier of the first MEC device, and the computation server receives the instruction and updates the identifier of the second MEC device in the session of the first edge device to the identifier of the first MEC device.

It should be noted that, when the method in scheme 2 is adopted to implement S303, the original session (the session between the edge device and the second MEC device) is not interrupted, and the session may be directly updated through scheme 2.

S304, the calculation force server selects a path containing the first MEC equipment from the one or more backup paths stored in the calculation force server as a main path after the migration of the first edge equipment, and takes the calculation force magnitude value under the main path after the migration stored in the calculation force server as the calculation force magnitude value after the migration of the first edge equipment.

Specifically, the computation force server calls a file for storing the backup path, selects a path including the first MEC device from the backup path as a main path after the migration of the first edge device, calls a file for storing the computation force magnitude value under the backup path, and uses the computation force magnitude value under the main path after the migration as the computation force magnitude value after the migration of the first edge device.

The path including the first MEC device may also be a path corresponding to the session after the migration of the first edge device.

Further, as shown in fig. 4, the method for migrating an edge device according to the embodiment may further calculate and store one or more backup paths after the first edge device is migrated, and a calculation strength value under each backup path; mainly, but not limited to S305 to S307 described below may be included.

It should be noted that, the time for calculating and storing the one or more backup paths after the first edge device is migrated and the calculation strength value under each backup path may be configured according to actual needs; this is not particularly limited in the examples of the present application.

In one possible implementation, the computing power server may directly perform the following S305 to S307 after performing the migration.

In another possible implementation, the computing power server performs S305 to S307 described below when it may detect that the first edge device moves after performing the migration.

For example, the computation force server may detect the position of the first edge device in real time, determine that the position of the first edge device has changed, that is, the first edge device has moved, when the detected position of the first edge device at the first time is different from the detected position of the first edge device at the second time, and then perform the following steps S305 to S307 at the first time.

The first time and the second time are both behind the current time, and the first time is behind the second time.

S305, the computing power server acquires one or more backup paths after the first edge device is migrated.

The number of backup paths may be configured according to actual requirements, which is not specifically limited in the embodiments of the present application. For example, the backup path may be one or more.

In one possible implementation manner, S305 may be implemented as: and the computing power server computes a plurality of paths between the first edge equipment and the computing power server according to a path recommendation algorithm or a shortest path algorithm, and all paths excluding the paths including the first MEC equipment in the computed plurality of paths are used as backup paths after the first edge equipment is migrated.

In one possible implementation manner, S305 may be implemented by the computing power server calculating a plurality of paths between the first edge device and the computing power server according to a path recommendation algorithm or a shortest path algorithm, and after removing paths including the first MEC device from the calculated plurality of paths, selecting one or more paths as backup paths after the first edge device is migrated.

In this possible implementation manner, a method for selecting a backup path may be configured according to actual requirements, which is not limited in this embodiment of the present application.

For example, a random algorithm may be used to select one or more paths as backup paths after the first edge device migrates. Or one or more paths with the optimal paths can be selected as backup paths after the first edge device is migrated.

S306, the calculation force server calculates the calculation force magnitude value of the first edge device under each backup path in the one or more backup paths after migration.

In a possible implementation manner, the computation server may respectively calculate the computation strength value of the first edge device under each backup path of the one or more backup paths after migration according to the computation type and the computation capability of the first edge device, and parameters such as the network bandwidth, the network delay, and the network jitter of each backup path.

In another possible implementation manner, the calculation power server may test, in a test manner, data processing capability of the first edge device in each backup path after the migration, as a calculation power value of the first edge device in each backup path after the migration.

S307, the calculation server stores the one or more backup paths after the migration of the first edge device and the calculation strength value of the first edge device under each backup path in the one or more backup paths after the migration.

The backup path and the position of the calculation strength value under the backup path may be configured and stored according to actual requirements, which is not limited in this embodiment of the present application.

For example, the location of the saved backup path and the location of the computation strength value under the saved backup path may be the same; the location of the saved backup path may be different from the location of the computation strength value under the saved backup path.

S307 may be implemented as: the calculation server saves one or more backup paths after the first edge device is migrated at the position for saving the backup paths; and the calculation strength value of the first edge device under each backup path after migration is stored in the position for storing the calculation strength value.

Further, as shown in fig. 4, the migration method of the edge device provided by the embodiment may also be used to provide a computing service to a user; may include, but is not limited to, S308 described below.

S308, the calculation force server provides calculation force service of the calculation force magnitude after migration to the user through the main path after migration.

Specifically, the computing power server configures corresponding edge devices to provide services to the users according to the computing requirements of the users. When the first edge device is configured, the calculation power server provides calculation power service with the calculation power magnitude after migration to the user through the main path after migration, and the calculation power service is used by the user.

The following briefly describes the migration method of the edge device provided in the present application with specific embodiments.

Fig. 5 illustrates a migration scenario of an edge device, which includes an edge device a, an MEC device B, and a computing power server.

At time a, the edge device a establishes a session a with the MEC device a, where the session a includes an identifier of the edge device a and an identifier of the MEC device a. The computing power server stores a main path (path A), a backup path (path A and path C) of the edge device A for providing computing power service for the user, a computing power value A of the edge device A under the path A, a computing power value B of the edge device A under the path B, and a computing power value C of the edge device A under the path C.

The computing power server provides computing power service of the computing power value A to the user through a path A (edge device A-MEC device A-computing power server and/or computing power server-MEC device A-edge device A).

At a time B after the time a, the computation server detects that the edge device a has migrated, that is, detects that the area range managed by the MEC device a of the edge device a has migrated to the area range managed by the device B.

And the MEC equipment B detects that the identification of the MEC equipment in the session A is the identification of the MEC equipment A, and initiates a session updating request comprising the identification of the MEC equipment B to the calculation server, wherein the session updating request is different from the identification of the equipment per se, and the calculation server receives the updating request and updates the identification of the MEC equipment A in the session A into the identification of the MEC equipment B.

The computing power server selects the secondary path B from the path B and the path C as a main path (edge device A-MEC device B-computing power server and/or computing power server-MEC device B-edge device A) after migration, and selects the computing power magnitude value B under the path B as the computing power magnitude value after migration.

And the calculation force server provides calculation force service with the calculation force value B to the user through the path B.

The above description mainly introduces the solution provided by the embodiment of the present invention from the perspective of the implementation principle of the computing power server included in the computing network in the network. It is understood that the computing server, in order to implement the above-described functions, includes corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, with the exemplary elements and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiment of the present invention, functional modules may be divided according to the method example, for example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

In the case of dividing each functional module according to each function, fig. 6 illustrates a migration apparatus 60 of an edge device provided in an embodiment of the present application, for implementing the function of the computing power server in the foregoing embodiment. The migration apparatus 60 of the edge device may be a computing power server; alternatively, the migration apparatus 60 of the edge device may be deployed in a computing power server. As shown in fig. 6, the migration apparatus 60 of the edge device may include a first acquisition unit 601, a determination unit 602, a recording unit 603, and a selection unit 604. Wherein, the first obtaining unit 601 is configured to execute S301 in fig. 3 or fig. 4; the determining unit 602 is configured to perform S302 in fig. 3 or fig. 4; the recording unit 603 is configured to execute S303 in fig. 3 or fig. 4; the selecting unit 604 is configured to execute S304 in fig. 3 or fig. 4. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Further, as shown in fig. 7, the migration apparatus 60 of the edge device may further include a second obtaining unit 605, a calculating unit 606, a saving unit 607, a detecting unit 608, and a service unit 609. Wherein, the second obtaining unit 605 is configured to execute S305 in fig. 4; the calculating unit 606 is configured to execute S306 in fig. 4; the saving unit 607 is used for executing S307 in fig. 4; the detection unit 608 is configured to perform S305 in fig. 4; the service unit 609 is configured to execute S308 in fig. 4. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the case of an integrated unit, fig. 8 shows a computing power server 80 provided in the embodiment of the present application, which is used to implement the functions of the computing power server in the above method. The computing power server 80 may include at least one processing module 801 for implementing the functionality of the computing power server in the embodiments of the present application. For example, the processing module 801 may be configured to execute the processes S301, S302, S303, and S304 in fig. 3, refer to the detailed description in the method example specifically, and are not described herein again.

The computing server 80 may also include at least one memory module 802 for storing program instructions and/or data. The memory module 802 is coupled with the processing module 801. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules. The processing module 801 may cooperate with the memory module 802. The processing module 801 may execute program instructions stored in the memory module 802. At least one of the at least one memory module may be included in the processing module.

The computing power server 80 may also include a communication module 803 for communicating with other devices over a transmission medium to determine that the computing power server 80 may communicate with other devices. The communication module 803 is used for the device to communicate with other devices.

The first acquisition unit 601, the determination unit 602, the recording unit 603, the selection unit 604, the second acquisition unit 605, the calculation unit 606, the saving unit 607, and the detection unit 608 may be realized by the processor 21 shown in fig. 2 calling the program code in the memory 22 in actual implementation. Alternatively, the method may be implemented by the processor 21 shown in fig. 2 through the communication interface 23, and the specific implementation process may refer to the description of the migration method portion of the edge device shown in fig. 3 or fig. 4, which is not described herein again.

As described above, the migration apparatus 60 or the computing power server 80 of the edge device provided in the embodiment of the present application may be used to implement the functions of the computing power server 80 in the method implemented in the embodiments of the present application, and for convenience of description, only the portions related to the embodiments of the present application are shown, and details of the specific technology are not disclosed, please refer to the embodiments of the present application.

Other embodiments of the present application provide a migration system of an edge device, where the system may include a migration apparatus of the edge device, an MEC device, and an edge device, where the migration apparatus of the edge device may implement the functions of the computing power server in the foregoing embodiments, for example, the migration apparatus of the edge device may be the computing power server described in this embodiment of the present application.

Other embodiments of the present application provide a chip system, which includes a processor and may further include a memory, and is used to implement the functions of the computing power server in the embodiments shown in fig. 3 or fig. 4. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

Further embodiments of the present application also provide a computer-readable storage medium, which may include a computer program, which, when run on a computer, causes the computer to perform the steps of the embodiments of fig. 3 or fig. 4 described above.

Further embodiments of the present application also provide a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the steps of the embodiments of fig. 3 or fig. 4 described above.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A migration method of an edge device, which is applied to a computing power server and comprises the following steps:

acquiring an identifier of a first multi-access edge computing MEC device to which the first edge device belongs and an identifier of a second MEC device to which the first edge device belongs; the first MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the current moment, and the second MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the previous moment of the current moment;

if the identifier of the first MEC equipment is different from the identifier of the second MEC equipment; determining that the first edge device has migrated;

recording the session after the first edge device is migrated; the migrated session includes an identification of the first MEC device;

and selecting a path containing the first MEC equipment from one or more backup paths stored by the computing power server as a main path after the migration of the first edge equipment, and using the computing power value of the main path after the migration stored in the computing power server as the computing power value after the migration of the first edge equipment.

2. The method of claim 1, further comprising:

acquiring one or more backup paths after the first edge device is migrated;

calculating a calculation strength value of the first edge device under each backup path of the one or more backup paths after the migration;

and saving the one or more backup paths after the first edge device is migrated, and the calculation strength value of the first edge device under each backup path in the one or more backup paths after the first edge device is migrated.

3. The method of claim 2, further comprising:

detecting that a position of the first edge device at a first time instant is different from a position of the first edge device at a second time instant; determining that a position of the first edge device has changed;

wherein the first time and the second time are both after the current time, and the first time is after the second time;

and at the first moment, executing the obtaining of the one or more backup paths after the first edge device is migrated.

4. The method according to any of claims 1-3, wherein the computing power server maintains a pre-migration session for the first edge device, the pre-migration session comprising an identification of the second MEC device, an identification of the first edge device;

the recording the session after the first edge device is migrated includes:

updating the identifier of the second MEC equipment in the session before the migration of the first equipment to the identifier of the first MEC equipment.

5. The method according to any one of claims 1-3, further comprising:

and providing the calculation capacity value calculation service after the migration to the user through the main path after the migration.

6. An apparatus for migration of edge devices, the apparatus being deployed at a computing power server, the apparatus comprising:

a first obtaining unit, configured to obtain an identifier of a first multi-access edge computing MEC device to which the first edge device belongs and an identifier of a second MEC device to which the first edge device belongs; the first MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the current moment, and the second MEC equipment is MEC equipment to which the first edge equipment belongs at the position of the previous moment of the current moment;

a determining unit, configured to determine whether the identifier of the first MEC device is different from the identifier of the second MEC device; determining that the first edge device has migrated;

the recording unit is used for recording the session after the first edge device is migrated; the migrated session includes an identification of the first MEC device;

a selecting unit, configured to select, from one or more backup paths stored by the computation power server, a path including the first MEC device as a main path after the migration of the first edge device, and use a computation power value in the main path after the migration stored by the computation power server as a computation power value after the migration of the first edge device.

7. The apparatus of claim 6, further comprising:

a second obtaining unit, configured to obtain one or more backup paths after the first edge device is migrated;

a calculating unit, configured to calculate a calculation strength value of the first edge device under each of the one or more migrated backup paths respectively;

a saving unit, configured to save the one or more backup paths after the migration of the first edge device, and the calculation strength value of the first edge device under each backup path in the one or more backup paths after the migration.

8. The apparatus of claim 7, further comprising:

a detection unit for detecting that the position of the first edge device at a first time is different from the position of the first edge device at a second time; determining that a position of the first edge device has changed;

at the first time, the second obtaining unit performs the obtaining of the one or more backup paths after the first edge device is migrated.

9. The apparatus according to any of claims 6-8, wherein the computing power server maintains a pre-migration session for the first edge device, the pre-migration session comprising an identification of the second MEC device, an identification of the first edge device;

the recording unit is specifically configured to:

10. The apparatus according to any one of claims 6-8, further comprising:

and the service unit is used for providing the calculation capacity value calculation service after the migration to the user through the main path after the migration.

11. A computing power server, comprising: a processor, a memory; the processor is coupled with the memory for storing computer program code comprising computer instructions which, when executed by the computing power server, cause the computing power server to perform the migration method of the edge device according to any of claims 1-5.

12. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the migration method of an edge device according to any one of claims 1-5.

13. A computing power system comprising a computing power server, a multi-access edge computing MEC facility, an edge facility; wherein the computing power server is configured to execute the migration method of the edge device according to any one of claims 1 to 5.