TWI641279B - Mobile edge platform servers and user equipment context migration management methods thereof - Google Patents

Abstract

An embodiment of a user equipment content migration management method, applied to a mobile edge platform to manage a user equipment content migration management method, includes: receiving one of the user equipment content migration requests; And requesting, calculating a first difference data corresponding to the content of the user equipment, wherein the first difference data is used to indicate the user equipment content obtained by the two consecutive user equipment content extraction operations of the at least one migration request And transmitting the first difference data to the neighboring action edge platform to request the neighboring mobile edge platform to perform one of the user equipment content migration operations according to the first difference data.

Description

Mobile edge platform server and its user device content migration Management method

The disclosure relates to a migration management method for the mobile edge platform server and its user equipment content.

In a typical mobile communication system, a user equipment (UE) can perform wireless communication of voice and/or data services through a base station and a service network, wherein wireless communication between the user equipment and the service network is performed. Can be based on a variety of wireless technologies, such as: Global System for Mobile communications (GSM) technology, General Packet Radio Service (GPRS) technology, Enhanced Data rates (Enhanced Data rates) For Global Evolution, EDGE) technology, Wideband Code Division Multiple Access (WCDMA) technology, Code Division Multiple Access 2000 technology, time-sharing synchronous code division multiplexing Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) technology, Worldwide Interoperability for Microwave Access (WiMAX) technology, Long Term Evolution (LTE) technology, and long-term evolution of improvement ( Long Term Evolution Advanced, LTE-A) technology and so on.

In recent years, as the demand for cloud computing and networking has increased significantly, a new generation of mobile communication systems (5G) has also been proposed. A new generation of mobile communication systems requires low latency, high load capacity and more consistent features. In order to achieve the above-mentioned low-latency characteristics, a new network architecture called Mobile Edge Computing (MEC) was born. In general, the edge of the action is located near the base station's backhaul network, placing a server to build a lightweight cloud to provide cloud computing and storage capabilities for transmission back to the backend core network. The data is intercepted to the server for processing. By migrating the application service traditionally built into the data center to the Mobile Edge Platform (MEP), the user can use the application service deployed on the mobile edge platform. It can have the following advantages: (1) neighboring users can effectively reduce the delay time of the service; (2) the data can effectively reduce the data load transmitted through the core network when the edge operation is performed; and (3) provide the wireless network End service quality parameter settings to ensure service quality and enhance user experience.

The current mobile edge computing architecture needs to support smart relocation ("Smart Relocation"), that is, when the user is using the service on the mobile edge platform, if the user moves between different mobile edge platforms and needs to access new ones When the mobile edge platform is used, the service used by the user must be migrated simultaneously with the user's movement. In the data center environment, the service data is set in the virtual machine (Virtual Machine/Container) on the mobile edge platform. Traditionally, all the data in the entire virtual machine needs to be moved when the service is to be migrated. The amount of data that was moved was too large and took too long. At the same time, in the context of action edge computing, if the user continues to move and switch to different access The mobile edge platform will cause virtual machines to be continuously migrated, often reducing system performance. In addition, when the service migration is performed only when the data newly added by the original virtual machine is relocated, it is possible that the newly added data is not the data of the mobile user, thereby wasting network resources and transmission time.

In view of this, the disclosure provides a mobile edge platform server for a mobile edge computing network and a migration management method for user equipment content applied to the mobile edge platform.

According to an embodiment of the present disclosure, a method for managing user device content migration is provided, which is applied to a mobile edge platform to manage user device content of one user device. The migration management method includes: receiving at least one migration request of the content of the user equipment; and calculating, according to the at least the migration request, a first difference data corresponding to the content of the user equipment, where the first difference data is used to indicate the corresponding at least a difference between the contents of the user equipment obtained by two consecutive user device content extraction operations of a migration request; and transmitting the first difference data to at least one adjacent action edge platform to request the neighboring action edge platform according to the foregoing The first difference data performs a migration operation of the user equipment content, wherein the mobile edge platform is connected to the adjacent mobile edge platform and wirelessly connected to the user equipment.

According to another embodiment of the present disclosure, a mobile edge platform server is provided for use in a mobile edge computing network, including a mobile edge platform, the mobile edge platform including a communication device and a controller. The communication device is configured for transmission and reception with at least one adjacent mobile edge platform and for wireless transmission and connection with a user equipment. The controller is configured to receive, by the communication device, a user connected to the user Transmitting a request for one of the user device contents of the device, calculating a difference data corresponding to the content of the user device according to the migration request, and transmitting the difference data to the neighboring action edge platform through the communication device to request the proximity action The edge platform performs the migration operation of the user equipment content according to the difference data, wherein the first difference data is used to indicate the user equipment content obtained by the two consecutive user equipment content extraction operations of the at least one migration request. difference between.

The above method of the present disclosure can be implemented by the apparatus or system of the present disclosure, which is a hardware or a firmware that can perform a specific function, can also be stored in a memory by a code, and/or can be recorded in a computer. Read the storage media/computer program product and combine it with specific hardware. When the code is loaded and executed by an electronic device, controller, computer processor or machine, the electronic device, controller, computer processor or machine becomes the device or system for carrying out the disclosure.

100‧‧‧Mobile communication environment

110‧‧‧Mobile communication device

120‧‧‧Service Network

122, 124‧‧‧ base station

120‧‧‧Service Network

130‧‧‧Action Edge Computing Network

140‧‧‧core network

150‧‧‧Action Edge Platform Server

152‧‧‧Virtual Machine

C1, C2‧‧‧ User device content

200‧‧‧Action Edge Platform

210‧‧‧Communication device

220‧‧‧ Controller

230‧‧‧ storage device

310, 320, 330, 340‧‧‧ management modules

S402, S404, S406‧‧‧ steps

MEP A, MEP B‧‧‧Action Edge Platform (200)

A1, A2, A2', A3, A3', B1, B2‧‧‧ User device content

510, 520‧‧‧ Information

UE1‧‧‧ mobile communication device

310A, 320A, 330A, 340A‧‧‧ Management Module

310B, 320B, 330B, 340B‧‧‧ management module

VMA, VMB‧‧‧ virtual machine

S601, S602, ...., S618‧‧ steps

S701, S702, S703, S704, S705‧‧‧ steps

1 is a schematic diagram showing a mobile communication environment in accordance with an embodiment of the present disclosure.

FIG. 2 is a schematic diagram showing the hardware architecture of the action edge platform according to an embodiment of the present disclosure.

FIG. 3 is a schematic diagram showing the structure of a functional module of an action edge platform according to an embodiment of the present disclosure.

FIG. 4 is a flow chart showing a method for managing migration of user equipment content according to an embodiment of the present disclosure.

FIG. 5 is a diagram showing a part of a user device that transmits only two consecutive user device content extraction requests between the action edge platforms according to an embodiment of the present disclosure. Schematic diagram of the points.

6A-6C are message sequence diagrams showing the difference data migration of the user equipment content to be migrated when the mobile communication device is in accordance with an embodiment of the present disclosure.

FIG. 7 is a message sequence diagram showing a portion of a user device content difference migration process and a query for a service state on a destination action edge platform according to an embodiment of the present disclosure.

In order to make the objects, features, and advantages of the invention more obvious, the following embodiments are illustrated and described in detail in the accompanying drawings. It is to be understood that the embodiments of the present invention are intended to be illustrative of the embodiments of the invention, and are not intended to limit the scope of the invention. And the scope of protection of the invention is subject to the definition of the scope of the patent application. It should be understood that the following embodiments can be implemented via software, hardware, firmware, or any combination of the above.

The disclosure provides a system and method for user equipment Context (UE Context) migration based on a mobile edge computing (MEC) environment, when a specific user moves and occurs. When the mobile edge platform (MEP) receives the handover, it only needs to move the user equipment content (UE Context) of the specific user part, so that the required service (Service) can be quickly migrated. To reduce migration time and improve overall system performance.

1 is a schematic diagram showing a mobile communication environment in accordance with an embodiment of the present disclosure. In the mobile communication environment 100, the mobile communication device 110 is wirelessly connected to the base station 122 or the base station 124 of the service network 120 through a spatial interface to obtain no Line access service. In general, the base stations 122, 124 can be base stations or access stations, or home base stations of a broadband code division multiplexing access system or an evolved home base station of a long term evolution system, and the base stations 122, 124 are A control node is in charge to provide the wired/wireless transmission functions required by the service network 120. The mobile communication device 110 is also referred to as a user equipment (UE) or a mobile station, and can support various wireless access technologies, and the mobile communication device 110 can be a device such as a mobile phone, a computer system, or the like. The mobile communication device 110 can include at least one communication device and a controller for performing wireless transmissions with the base station 122 and the base station 124. The mobile communication device 110 can perform wired communication and/or wireless communication of voice and/or data services through the base stations 122 and 124 and the service network 120. The wireless communication between the mobile communication device 110 and the service network 120 can be According to various wireless technologies, such as: Global System for Mobile communications (GSM) technology, General Packet Radio Service (GPRS) technology, Enhanced Data Rates for Global (Enhanced Data Rates for Global) Evolution, EDGE) technology, Wideband Code Division Multiple Access (WCDMA) technology, Code Division Multiple Access 2000 technology, time-sharing synchronous code division multiplexing access (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA) technology, Worldwide Interoperability for Microwave Access (WiMAX) technology, Long Term Evolution (LTE) technology, and long-term evolution (Long Term) Evolution Advanced, LTE-A) technology and more. The service network 120 includes a mobile edge computing network 130 and a core network 140. Multiple Action Edge Platform Servers 150 (or Mobile Edge Hosts) They are connected to each other in a wireless or wired manner to form the mobile edge computing network 130, but the disclosure is not limited thereto. The core network 140 is used to perform action management, network-side authentication, and interfacing with a public network (eg, the Internet). For example, the core network 140 may be an Evolved Packet Core (EPC), which includes: a Home Subscriber Server (HSS), a Mobility Management Entity (MME), and a service gate. The Serving Gateway (S-GW) and the Packet Data Network Gateway (PDN-GW/P-GW), but the disclosure is not limited thereto.

The mobile edge computing network 130 is connected between the core network 140 and the mobile communication device 110 to provide a mobile edge computing environment, and a cloud-providing cloud is provided at the near end of the backhaul network close to the base stations 122 and 124. The ability to compute and store to intercept data that is passed back to the backend core network 140 to the operational edge platform server 150 for computational processing. Each of the mobile edge platform servers 150 further includes a Mobile Edge Platform (MEP) 200 and a plurality of virtual machines and/or containers 152. The mobile communication device 110 can be wired/wirelessly connected to the different mobile edge platforms 200 of the mobile edge computing network 130 via the base stations 122 and 124, respectively. Base stations 122 and 124 can be connected via wired connections such as the Internet, wired area networks, and/or wireless connections such as wireless networks, wideband code division multiplexing access system (WCDMA) networks, 3G networks, wireless Various networks such as a local area network (WLAN), a Bluetooth network, and the like are connected to the mobile edge computing network 130 to access the mobile edge platforms 200 in the mobile edge computing network 130 and perform communication with each other. Data transmission. For example, the base station 122 can be connected to the mobile edge computing network 130 via a wireless connection, and the base station 124 can be connected to the mobile edge computing network 130 via an Ethernet cable and can be connected to the Internet. Connect to the core via the internet Heart network 140, but the disclosure is not limited thereto. In this embodiment, the mobile communication device 110 can access a mobile edge platform 200 in the mobile edge computing network 130 through the base station 122, and access the other mobile edge platform in the mobile edge computing network 130 through the base station 124. 200. The Action Edge Platform 200 can run a variety of services with low latency requirements, data analysis assistance and regional associations, including Vehicle Networking (V2X), Virtual Reality, Augmented Reality, and Instant. Services such as Instant Online Game, Health Care (eHealth) and Video Analytics (Video Analytics), but the disclosure is not limited to this. The services running on the mobile edge platform 200 are all operating in the corresponding virtual machine or container 152 of the mobile edge platform server 150. To simplify the description, in the following embodiments, virtual machines and/or containers 152 are collectively referred to as virtual machines 152. A user of at least one or more of the mobile communication devices 110 within the architecture of each virtual machine 152 corresponds to one or more user device content (UE Contexts) of one or more particular services. For example, the first user device content C1 and the second user device content C2 may be included in the virtual machine 152, and the first user device content C1 and the second user device content C2 may correspond to different uses of the same service. , the same user corresponding to different services, or different users corresponding to different services. The user equipment content is context information for using the service for each user. For example, in an embodiment, the user equipment content may be a file in a format such as JSON, XML, or YAML, but the disclosure is not limited thereto.

FIG. 2 is a schematic diagram showing the hardware architecture of the action edge platform 200 according to an embodiment of the present disclosure. As shown in FIG. 2, the action edge platform 200 includes at least one communication device 210, a controller 220, and a storage device 230.

The communication device 210 is configured to receive the mobile communication device 110 and other actions Information on the edge platform 200. Specifically, the communication device 210 can receive signals from the currently connected network and transmit the signals to the currently connected network. The communication device 210 can include a wired communication module that can be coupled (electrically connected) to one or more wired networks and can allow for the use of a wired network with one or more additional devices, computer servers, and/or networks. Road nodes, such as base stations, communicate. The communication device 210 can further include a wireless module, can be coupled (electrically connected) to one or more antennas (not shown), and can allow a wireless network to be used with one or more additional devices, computer servers And/or network nodes (such as base stations, etc.) communicate. The Mobile Edge Platform 200 supports various communication protocols such as Code Division Multiple Access System (CDMA), Global System for Mobile Communications (GSM), Enhanced Data GSM Environment (EDGE), High Speed Downlink Packet Access (HSDPA), Wi -Fi (eg IEEE 802.11a/b/g/n), Bluetooth and Wi-MAX communication protocols, and agreements such as email, instant messaging (IM), and smart information services (SMS) or other The standard of the wireless access technology depends on the standard, but the disclosure is not limited thereto. Specifically, the communication device 210 is coupled (electrically connected) to the controller 220 and bidirectionally connected to the same communication channel and protocol communication device, so as to receive external messages such as mobile communication. The message sent by the device 110 and the mobile edge platform 200 is output to the controller 220, and the message output by the controller 220 is broadcasted through the communication device 210.

The controller 220 can be a general-purpose controller, a micro-control unit (MCU), a graphics processing unit (GPU), or a digital signal processor (DSP) to provide data analysis. The functions of processing, processing, and computing, but the disclosure is not limited thereto. The controller 220 is coupled (electrically connected) to the communication device 210 and the storage device 230, and can load and execute an instruction set and/or a code from the storage device 230 to control communication. The operation of the device 210 and the storage device 230 to perform the migration management method of the user device content in the present case will be described in the following sections.

The storage device 230 can be a non-volatile storage medium (eg, Read-Only Memory (ROM), Flash memory, hard disk, CD, etc.), volatile storage media (eg, random A random access memory (RAM), or any combination of the two, for storing related data, such as intermediate data and execution result data in the operation process. The storage device 230 can also be used to store an instruction set and/or a code program module executable by the controller 220, but the disclosure is not limited thereto. Generally, a program module includes a routine, a program, an object, a component, and the like. The storage device 230 can further store various items required for the operation, such as user device content, difference data, and the like, but the disclosure is not limited thereto.

It will be understood by those skilled in the art that the circuit logic in controller 220 can typically include a plurality of transistors to control the operation of the circuit logic to provide the desired functionality and operation. Furthermore, the specific structure of the transistor and the connection relationship between them are usually determined by the compiler. For example, the Register Transfer Language (RTL) compiler can be operated by the processor and will be a similar combination language. The code's script is compiled into a form suitable for designing or fabricating the circuit logic, but the disclosure is not limited thereto.

Although not shown, the mobile communication device 110 of FIG. 1 may also include a communication device and a controller for providing the base stations 122, 124 and the mobile edge platforms in the mobile communication environment 100. The function of wireless transmission and reception between 200, and the controller is used to control the operation of the communication device. The operation mode of the communication device and the controller of the mobile communication device 110 and FIG. 2 The embodiments are similar and will not be described again here.

FIG. 3 is a schematic diagram showing the functional module architecture of the action edge platform 200 according to an embodiment of the present disclosure. The functional module architecture of the mobile edge platform 200 includes a UE Context Management module 310, a Service Management module 320, a Smart Relocation Management module 330, and an action. MEP Neighbor Management module 340. The user equipment content management module 310, the service management module 320, the smart reconfiguration management module 330, and the mobile edge platform neighbor management module 340 can be stored in the storage device 230 (eg, memory) of the mobile edge platform 200. And the controller 220 of the action edge platform 200 can load and execute the migration management method of the user equipment content of the present case at an appropriate time. Specifically, the controller 220 can control the operation of the user equipment content data management module 310, the service management module 320, the smart reconfiguration management module 330, and the action edge platform neighbor management module 340 to perform the application of the present application. A migration management method for user device content of the mobile edge platform 200.

The user device content management module 310 mainly imports, extracts, deletes, and stops the content of one or more user devices on the virtual machine 152 through a dedicated application interface (API). Specifically, the user equipment content management module 310 sends a user equipment content extraction request to the virtual machine 152 for the user equipment content extraction through a dedicated application interface (API) at each migration request. The operation and comparison of the user equipment contents obtained by the two consecutive user equipment content extraction operations are performed, thereby calculating a difference data Diff, or integrating the difference data Diff received by the adjacent action edge platform 200 into the corresponding use. Device content. Wherein, the difference data Diff represents the user equipment The content management module 310 corresponds to a difference portion between the user device contents obtained by the two consecutive user device content extraction operations of the migration request. That is, the difference data Diff records that the user equipment content management module 310 sends the user equipment content extraction request for the same user on the same service through the dedicated application interface (API). The current user device content and the previous user device content management module 310 transmit the change between the user device content obtained by the user device content extraction request to the virtual machine 152 through a dedicated application interface (API). In some embodiments, the user device content management module 310 can also generate a profile of the specific user device content to record related information such as the source of the user device content.

The service management module 320 performs status query and startup actions on various services on the virtual machine 152 through an application interface (API). The smart reconfiguration management module 330 is responsible for communicating with other mobile edge platforms 200 regarding user device content migration and receiving mobile events triggered by the mobile communication device 110. For example, the above-mentioned mobile event may include a time indication that the mobile communication device 110 starts moving and the completion of the movement, and the like. The action edge platform neighbor management module 340 can communicate with the adjacent action edge platform 200 (either periodically communicating in a predetermined cycle or communicating when a specific event is triggered), collecting information of the adjacent action edge platform 200 and information about the adjacent action edge platform 200. Management and logging so that when the process of user device content migration is required, it is possible to know which user device content of the neighbor's mobile edge platform is to be migrated. The action edge platform 200 has a plurality of virtual machines 152, and the services running on the action edge platform 200 are all operated in corresponding virtual machines 152 on the action edge platform. Each virtual machine 152 architecture includes at least one or more user device content. The above user equipment content is provided for the corresponding service in the virtual machine 152. In addition to the access, the mobile edge platform 200 also directly accesses the user device content through an application interface (API) to respond to the mobile edge of the mobile edge platform switching and service migration requirements.

Specifically, the controller 220 can access the content of the corresponding user equipment of the service that needs to be migrated through the user equipment content management module 310, and query and start the status of the specified service on the virtual machine 152 through the service management module 320. The action, through the smart reconfiguration management module 330, communicates with other mobile edge platforms 200 regarding user device content migration, and receives mobile events triggered by the mobile communication device 110, and through the mobile edge platform neighbor management module. The group 340 obtains the information of the adjacent action edge platform related to the service migration, and performs the migration operation of the user equipment content in response to the switching of the mobile edge platform and the service migration requirement caused by the user movement, and the service with the migration requirement The user device content is moved to the corresponding action edge platform, the details of which will be described later.

Although not shown, the action edge platform 200 may further include other functional units, such as: input and output devices (such as physical buttons or keyboards) or display devices, sound effects devices, etc., and the disclosure is not limited thereto.

It can be understood that each of the above components or modules is a device having a corresponding function, and may have appropriate hardware circuits or components to perform corresponding functions. However, the device is not limited to having a physical entity, and A virtual program or software having a corresponding function, or a device having the ability to process, run, and software, and the disclosure is not limited thereto. For the manner in which the above components operate, the following description of the corresponding method can be further referred to. In an embodiment, the user equipment content management module 310, the service management module 320, the smart reconfiguration management module 330, and the mobile edge platform neighbor management module 340 can be implemented as a chip, a circuit board, or a circuit. , The controller 220 can control the operation of the user equipment content management module 310, the service management module 320, the smart reconfiguration management module 330, and the mobile edge platform neighbor management module 340 to perform the migration of the user equipment content of the present application. The management method, the details of which will be explained later.

FIG. 4 is a flow chart showing a method for managing migration of user equipment content according to an embodiment of the present disclosure. Please refer to Figure 1, Figure 2, Figure 3 and Figure 4 at the same time. The migration management method for user device content according to the disclosed embodiment may be applied to any action edge platform in a mobile edge computing network, for example, applicable to the action edge platform 200 of FIG. 2 and by the action edge The controller 220 of the platform 200 executes. In the embodiment of FIG. 4, it is assumed that the mobile communication device 110 can be connected to the mobile edge platform 200 through the base station 122 to use the service SRA on the mobile edge platform MEP_A, and the mobile communication device 110 spans in the process of using the service SRA. Go to the adjacent action edge platform MEP_B, thus generating the handover of the mobile edge platform and the migration requirements of the service.

When the mobile communication device 110 uses the service SRA and moves from the source mobile edge platform 200 (eg, MEP_A) to the adjacent mobile edge platform MEP B and needs to perform user context switch (UE context switch), as shown in S402, The controller 220 of the action edge platform 200 receives at least one migration request of the user equipment content through the communication device 210.

As shown in S404, the controller 220 of the action edge platform 200 calculates a difference data of the content of the corresponding user equipment according to the at least one migration request, where the difference data indicates that the user equipment content management module 310 corresponds to at least one migration request. The difference between the contents of the user equipment obtained by the two consecutive user content extraction operations. Specifically, the user equipment content management module 310 The user device content extraction request is sent to the virtual machine 152 through the dedicated application interface (API) to obtain the corresponding user device content, and the controller 220 can be used in each user device content management module 310. The user device content of the service is accessed at the time of the device content extraction request, and the current user device content obtained by the current user device content extraction operation and the user device content obtained by the previous user device content extraction operation are compared. , calculate the difference between the two, and then generate the difference data according to the difference. In other words, the difference data may record the location and size of the difference between the user device content obtained by the user device content extraction operation for two consecutive times, and represent the user device of the user device content extraction operation for two consecutive user devices. The difference between the content.

After generating the difference data, as shown in S406, the controller 220 of the action edge platform 200 transmits the difference data to a neighboring action edge platform of the corresponding migration request through the communication device 210 to request the neighboring action edge platform to perform the use according to the difference data. One of the device content migration operations. In this embodiment, since the mobile communication device 110 moves from the source mobile edge platform 200 to the adjacent mobile edge platform MEP_B, a neighboring mobile edge platform of the corresponding migration request is MEP_B.

After the action edge platform MEP B receives the difference data from the adjacent action edge platform 200 through the communication device, the controller of the action edge platform MEP_B according to the received difference data and the previously received first user device content. Performing a merge calculation to generate a second user equipment content data, and then updating the second user equipment content to a virtual machine 152 of a corresponding service SRA on the action edge platform MEP B, so as to migrate the original service SRA to The action edge platform continues to execute on MEP B.

In another embodiment, when the mobile communication device 110 using a service SRB is moved from another source mobile edge platform MEP C to the action edge platform 200, the action edge platform 200 is the target action edge platform (Target MEP) at this time. The action edge platform 200 can receive another difference data (second difference data) from the MEP C through the communication device 210, and then perform a combined calculation according to the received difference data and the previously received user equipment content to generate a new one. The user equipment content data is updated to the virtual machine 152 of the corresponding service SRB on the action edge platform 200 to migrate the original service SRB to the mobile edge platform 200 to continue execution.

Referring to FIG. 5, FIG. 5 is a schematic diagram showing a portion of a user equipment content transmission difference between two consecutive user equipment content extraction requests between mobile edge platforms according to an embodiment of the present disclosure. As shown in FIG. 5, the mobile communication device UE moves from the source mobile edge platform MEP_A to the adjacent mobile edge platform MEP_B. At time t0, this is the first user equipment content extraction request, and the action edge platform MEP_B The service has no user device content, so the action edge platform MEP_A performs the first user device content extraction operation to obtain the current user device content A1 of the service in the virtual machine 152 and transmit the entire user device content A1 to Action edge platform MEP B. The action edge platform MEP B then obtains the user device content A1 and updates the user device content A1 to the user device content of the corresponding service.

Assuming that the second user device content extraction request occurs when the user device content changes at time t1, the mobile edge platform MEP A performs the second user device content extraction operation to access the user device in the service. Content A2, and user device content A2 and previous user device content extraction operation The user equipment content A1 obtained by the first user equipment content extraction operation is subjected to difference calculation, and the difference is obtained as the partial data 510 of the user equipment content A2. Therefore, the difference data A2 is generated based on the partial data 510. ', and only transmit the difference data A2' to the action edge platform MEP B.

After the action edge platform MEP B receives the difference data A2', the previously received user equipment content A1 is obtained from the service and the user equipment content A1 is merged with the difference data A2' to generate new user equipment content. B1 (ie, user device content A2), after which the new user device content B1 is updated to the corresponding service. Specifically, the new user device content B1 is the restored user device content A2, and the mobile edge platform MEP B updates the user device content B1 to the user device content of the corresponding service.

Similarly, assuming that the second user equipment content extraction request demand occurs at time t2, the mobile edge platform MEP A performs the third user equipment content extraction operation to access the user equipment content A3 in the service. And the user equipment content A3 is compared with the user equipment content A2 obtained by the previous user equipment content extraction operation (that is, the second user equipment content extraction operation), and the difference is obtained as the user equipment. Part of the material 520 of the content A3, therefore, the difference data A3' is generated based on the partial material 520, and only the difference data A3' is transmitted to the action edge platform MEP B.

After the action edge platform MEP B receives the difference data A3', the previously received user equipment content B1 is obtained from the service and the user equipment content B1 is merged with the difference data A3' to generate new user equipment content. B2 (ie, user device content A3), after which the new user device content B2 is updated to the corresponding service. Specifically, the user device content B3 is restored. User device content A3.

In an embodiment, when the action edge platform 200 (such as MEP B shown in FIG. 5) receives the difference data from the adjacent action edge platform (such as MEP A shown in FIG. 5) through the communication device 210 and will integrate After the new user device content is updated into the virtual machine 152 of the corresponding service, the controller 220 of the action edge platform 200 can automatically delete the difference data to save storage space. In another embodiment, the action edge platform 200 (such as MEP A shown in FIG. 5) can transmit the difference data to the adjacent action edge platform on the migration path through the communication device 210 (such as the MEP B shown in FIG. 5). Afterwards, the controller 220 receives a deletion request from the adjacent mobile edge platform through the communication device 210, and deletes the difference data corresponding to the deletion request. The proximity action edge platform may transmit the deletion request to the action edge platform 200 after updating the new user equipment content to the corresponding service.

Therefore, the user equipment content obtained by the two consecutive user equipment content extraction requests between the adjacent action edge platforms only needs to transmit the difference part, and only needs to move part of the user equipment content, and the smaller the difference part, the data is transmitted. The smaller the amount, the less migration time is required, allowing the required services to be migrated quickly, reducing migration time and improving overall system performance. When the content of the user equipment needs to be transmitted frequently and frequently between different action edge platforms, only part of the user equipment content needs to be moved, which can effectively solve the problem that the user continues to move and switch to different access in the prior art. The mobile edge platform will lead to a large number of migrations and reduce system performance. When the service migration is only carried out for the newly added data of the original virtual machine, it is possible that the newly added data is not the data of the mobile user and wastes network resources and transmission time. problem.

Some embodiments are exemplified below to assist in the practical application details of the method for managing migration management of user equipment according to the present disclosure, but the disclosure is not limited thereto.

6A-6C are message sequence diagrams showing the difference data migration of the user equipment content to be migrated when the mobile communication device UE1 (for example, the mobile communication device 110 in FIG. 1) according to an embodiment of the present invention. In this embodiment, it is considered that the mobile communication device UE1 performs a first service SRA (for example, V2X or AR application service) from the source action edge platform MEP A and moves to the destination action edge platform MEP_B, so the source action edge platform MEP_A receives a migration request for one of the above user device contents. In this embodiment, the action edge platforms MEP A and MEP B respectively include the architectures shown in FIG. 2 and FIG. 3, wherein the action edge platform MEP_A includes a user equipment content management module 310A, a service management module 320A, The smart reconfiguration management module 330A and the mobile edge platform neighbor management module 340A, the mobile edge platform MEP B includes a user equipment content management module 310B, a service management module 320B, a smart reconfiguration management module 330B, and a motion edge. Platform neighbor management module 340B. The user equipment content of the mobile communication device UE1 corresponding to the first service SRA is stored in the virtual machine VMA in the mobile edge platform MEP_A, and is stored in the virtual machine VMB in the mobile edge platform MEP_B.

As shown in FIG. 6A, the smart reconfiguration management module 330A on the source mobile edge platform MEP A receives a user equipment content migration indication message including at least a user equipment identifier (UE ID). Message) (S601). In this embodiment, the user equipment identifier is UE1. For example, the user equipment content migration indication message may be generated corresponding to a handover request or a service migration request. Smart reconfiguration management module The group 330A transmits a Neighbor MEP Information Request message including at least the user equipment identifier to the mobile edge platform neighbor management module 340A, as shown in FIG. 6A (S602). After receiving the proximity action edge platform information request message, as shown in FIG. 6A, the action edge platform neighbor management module 340A performs the extraction processing of the Neighbor MEP Information (S603). Since the action edge platform neighbor management module 340A can collect information of all the mobile edge platforms in the vicinity by communicating with the corresponding action edge platform neighbor management module of the adjacent action edge platform, the corresponding user equipment identifier can be obtained. (UE1) Action Edge Platform Identifier (MEP IP). Among them, the action edge platform identifier indicates which action edge platform the next action edge platform to migrate to. In this embodiment, since the destination action edge platform is MEP_B, the action edge platform identifier is MEP_B.

After obtaining the action edge platform identifier (MEP_B) corresponding to the user equipment identifier (UE1), as shown in FIG. 6A, the action edge platform neighbor management module 340A sends the smart reconfiguration management module 330A to at least the foregoing. The Neighbor MEP Information Response Message (S604) of the User Equipment Identifier (UE1) and the Action Edge Platform Identifier (MEP_B), through the neighboring action edge platform information response message, and the action edge The smart reconfiguration management module 330A on the platform MEP A sends a UE Context Migration Request message including at least the user equipment identifier (UE1) and the service identifier (MEP Service ID) to The smart reconfiguration management module 330B corresponding to the action edge platform identifier (MEP_B) (S605). In this embodiment, the action edge platform identifier is MEP_B and the service identifier is SRA. In other words, the source action edge platform MEP_A The target action edge platform can be determined by the action edge platform identifier as MEP_B, and the source action edge platform MEP_A can tell the destination action edge platform MEP_B which service (ie: SRA) through the user equipment identifier and the service identifier. Which user device (ie, UE1) corresponds to the user device content that needs to be migrated.

Corresponding to the user equipment content migration request message, as shown in FIG. 6B, the smart reconfiguration management module 330B transmits at least the user equipment identifier to the smart reconfiguration management module 330A on the source mobile edge platform MEP_A ( The UE Context Migration Response message (S606) of the UE1) is sent to the source mobile edge platform MEP_A to know that the corresponding user equipment content of the user equipment UE1 serving the SRA needs to be migrated. The smart reconfiguration management module 330A on the source mobile edge platform MEP A transmits the at least the user equipment identifier (UE1) to the user equipment content management module 310A corresponding to the user equipment content migration response message. The UE Context Diff Request message is as shown in FIG. 6C (S607).

Correspondingly, the user equipment content management module 310A sends a user equipment content export request message (UE Context Export Request message) including at least the user equipment identifier (UE1) to the virtual machine VMA where the user equipment content is located through the API. As shown in Fig. 6C (S608). In this embodiment, the user equipment content export request message is the user equipment content extraction request message for performing the user equipment content extraction operation. Corresponding to the user equipment content export request message, as shown in FIG. 6C, the virtual machine VMA obtains a user equipment content C1 corresponding to the user equipment identifier according to the user equipment identifier (UE1). And transmitting, to the user equipment content management module 310A, a user equipment content response message (UE Context Response message) including at least a user equipment identifier (UE1), a data type type of “Export”, and the obtained user equipment content C1. ) (S609).

The user equipment content management module 310A calculates the difference data Diff of the user equipment content according to the user equipment content response message (S610), and compares the current user equipment content C1 and the stored content in the user equipment content response message. The user equipment content (for example, C0) obtained by the previous user device content extraction operation obtains a difference between the two, and then generates a difference data Diff according to the difference portion (ie, Diff=C1-C0), and After obtaining the difference data, the UE Context Diff Response message including the user equipment identifier (UE1) and the difference data Diff is sent to the smart reconfiguration management module 330A, as shown in FIG. 6C. Shown (S611).

The smart reconfiguration management module 330A sends a user equipment content delivery message including at least a user equipment identifier (UE1) and a difference data Diff to the smart reconfiguration management module 330B of the mobile edge platform MEP B (UE Context Diff Transfer) Message (as shown in FIG. 6C) (S612), causing the smart reconfiguration management module 330B to correspondingly transmit to the user equipment content management module 310B at least the user equipment identifier (UE1) and the difference data Diff. The UE Context Diff Transfer message (as shown in FIG. 6B) (S613).

After receiving the user equipment content difference transmission message, the user equipment content management module 310B performs a difference combining and integration operation of the user equipment content, and extracts the difference data Diff according to the currently received difference. The data Diff and the previously received user equipment content (C0) are combined and calculated, and the difference portion indicated by the difference data Diff is integrated into the previously received user equipment content corresponding position to generate a new user. The device content data C2 (C2=C0+Diff=C1) (S614), and sends a user device content import message (Import Request message) including the UE1 and the new user equipment content data C2 to the virtual machine VMB to The user device content C2 is updated into the corresponding user device content of the virtual machine VMB (as shown in FIG. 6B) (S615). In detail, since the action edge platform MEP_B has already known the service to be migrated and the location of the user device content according to the user equipment content migration request message, the new user device content can be easily updated to the corresponding user device content. in.

After the virtual machine VMB updates the new user equipment content to the corresponding user equipment content, the user equipment content management module 310B sends back the user equipment identifier (UE1) and the data type is "Import". User Context Response message (as shown in FIG. 6B) (S616).

The user equipment content management module 310B transmits a UE Context Diff Transfer Response message including the user equipment identifier (UE1) to the smart reconfiguration management module 330B (eg, FIG. 6B). Shown) (S617).

The smart reconfiguration management module 330B correspondingly transmits the user equipment content difference transmission response message (UE Context Diff Transfer) including at least the user equipment identifier (UE1) to the smart reconfiguration management module 330A of the mobile edge platform MEP A. Response message) (as shown in FIG. 6B) (S618), completing the switching of the user equipment content of the cross-action edge platform. 6A to 6C above The sequence of messages of the graph can be repeated each time a user device content across the mobile edge platform needs to be switched.

In some embodiments, since the service that needs to be migrated may not be opened yet and cannot be directly used and updated, the controller 220 of the action edge platform 200 may first determine whether the service is turned on, and if it is determined that the service is not turned on, start the service. In an embodiment, before the content of the integrated user equipment is updated to the virtual machine of the corresponding service, the action edge platform 200 may first detect that the status of the corresponding service is an open state or a closed state, and according to The detected status of the corresponding service determines whether to perform a startup job of the corresponding service. Corresponding to detecting that the status of the corresponding service is the closed state, indicating that the corresponding service has not been started, the action edge platform 200 performs a startup operation of the corresponding service to update the corresponding user equipment content after starting the service. In another embodiment, when the action edge platform 200 receives a service status query request from the adjacent action edge platform, corresponding to the service status query request, the status of the corresponding service is detected as an open state or a closed state. And in response to detecting that the foregoing state of the corresponding service is the closed state, performing the startup operation of the corresponding service, and after the startup operation is completed, transmitting a migration response request message to the adjacent action edge platform to enable the proximity The Action Edge platform began transmitting the above differences. In another embodiment, when the action edge platform 200 is the source action edge platform, the controller 220 can transmit a service status query request to the destination proximity action edge platform via the communication device 210, and receive the proximity action edge from the communication device 210. The platform indicates a migration response request message that the corresponding service has been activated, and corresponding to the migration response request message, and transmits the difference data to the neighboring action edge platform via the communication device 210.

Figure 7 shows user device content in accordance with an embodiment of the present invention The UE Context Diff Migration process plus a message sequence diagram of the portion of the service state on the destination action edge platform MEP_B. Please also refer to Figure 6A~6C and Figure 7.

When the smart reconfiguration management module 330B receives the migration request message including the user equipment identifier (UE1) and the service identifier (SRA) from the user equipment content of the smart reconfiguration management module 330A (UE Context Migration Request) When the message is as shown in S605 of FIG. 6B, the smart reconfiguration management module 330B sends a service status check message (ME Service Status Check message) including at least a service identifier (MEP Service ID) to the service management module 320B. ) (S701). In this embodiment, the service identifier is SRA.

Corresponding to the service status inquiry message, the service management module 320B transmits a ME Service Status Check message including at least a service identifier (SRA) to the virtual machine VMB (S702).

After receiving the service status query message, the virtual machine VMB queries the status of the service corresponding to the service identifier (SRA), and sends at least the service identifier (SRA) and the status to the service management module 320B according to the queried status result. Status of the ME Service Status Response message (S703). The status data of the service may be "enable" or "disable", respectively, to indicate that the service is in an on or off state.

In this embodiment, it is assumed that the status data of the service SRA is "disable", indicating that the service SRA is not enabled, so the service management module 320B sends the action edge service start request message including the service identifier (SRA) to the virtual machine VMB. (ME Service Start Request message) to start the service SRA in the virtual machine VMB (S704).

After the virtual machine VMB completes the startup job corresponding to the service indicated by the service identifier, the service management module 320B transmits a ME Service Start Response message including at least a service identifier (SRA), and notifies The service management module 320B has completed the startup operation of the service (S705). The service management module 320B transmits to the smart reconfiguration management module 330B an action edge service status response message (ME) including at least the service identifier SRA and the status "enable" (S706). After the smart reconfiguration management module 330B receives the above action edge service status response message, it determines that the service SRA to be migrated is enabled according to its status ("enable"), and then sends the smart service to the source action edge platform MEP A. The reconfiguration management module 330A transmits a UE Context Migration Response message including at least the user equipment identifier (UE1) (as shown in S606 of FIG. 6B), and continues with FIG. 6A. Subsequent operation flow of Figure 6C.

Therefore, the mobile edge platform server applied to the mobile edge computing network and the migration management method of the user equipment content applied to the mobile edge platform according to the disclosure can be moved by the user and the action edge platform (MEP) is generated. In the handover, the calculation only needs to transmit the user equipment content (UE Context) of the moving part, so that the required service can be quickly migrated to reduce the migration time and improve the overall system performance.

The method of the present disclosure, or a particular type or portion thereof, may exist in the form of a code. The code may be included in a physical medium such as a floppy disk, a CD, a hard disk, or any other machine readable (such as computer readable) storage medium, or is not limited to an external form of computer program product, wherein When the code is loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present disclosure. Code also It can be transmitted through some transmission medium such as a wire or cable, optical fiber, or any transmission type, wherein when the code is received, loaded and executed by a machine such as a computer, the machine becomes a device for participating in the disclosure. . When implemented in a general purpose image controller, the code in combination with the image controller provides a unique means of operation similar to application specific logic.

It should be noted that the ordinal “first”, “second” and the like used in the scope of the patent application do not mean that there is any chronological order, difference in priority, or other relationship between the elements described. Order, but to distinguish between different components with the same name.

The present disclosure has been disclosed in the above embodiments, and is not intended to limit the invention, and it is intended that the invention may be modified and modified without departing from the spirit and scope of the invention. For example, the systems and methods described in the disclosed embodiments can be implemented in physical embodiments of hardware, software, or a combination of hardware and software. The scope of protection of the invention is therefore defined by the scope of the appended claims.

Claims (16)

A method for managing user device content migration, which is applied to a mobile edge platform to manage user device content of a mobile communication device, comprising: receiving at least one migration request of the user equipment content; and according to the at least one migration request, Calculating a first difference data corresponding to the content of the user equipment, wherein the first difference data is used to indicate that the content of the user equipment obtained by the two consecutive user content extraction operations of the at least one migration request is And transmitting the first difference data to the at least one adjacent action edge platform to request the neighboring mobile edge platform to perform one of the user equipment content migration operations according to the first difference data, wherein the action edge platform is connected to the proximity action The edge platform is wirelessly connected to the mobile communication device. The method for managing migration of user equipment content according to claim 1, further comprising: receiving a first user equipment content from the adjacent mobile edge platform; and receiving a second difference data from the neighboring mobile edge platform; Performing a combined calculation according to the second difference data and the first user equipment content to generate a second user equipment content; and updating the second user equipment content to a virtual machine of a corresponding service. The method for managing the content of the user equipment according to the second aspect of the patent application, further comprising: before updating the content of the second user equipment to the virtual machine of the corresponding service: detecting one of the corresponding services The state is an open state or a closed state; and corresponding to detecting the state of the corresponding service being the closed state, performing one of the corresponding services to start a job to start the corresponding service. The method for managing the content of the user equipment according to the second aspect of the invention, further comprising: deleting the second difference data after updating the content of the second user equipment to the virtual machine of the corresponding service. The method for managing the content of the user equipment according to the second aspect of the patent application includes: receiving a service status query request from the neighboring action edge platform; and detecting the corresponding service according to the service status query request. One of the states is an open state or a closed state; and corresponding to detecting the state of the corresponding service being the closed state, performing one of the corresponding services to start a job to start the corresponding service; and completing the booting operation Thereafter, a migration response request message is transmitted to the adjacent mobile edge platform to enable the adjacent mobile edge platform to transmit the second difference data. The method for managing migration of user equipment content according to claim 1, further comprising: receiving a deletion request from one of the neighboring action edge platforms; and deleting the first difference data corresponding to the deletion request. The method for managing migration of user equipment content according to claim 1, further comprising: transmitting a service status query request to the neighboring mobile edge platform; and receiving a migration response request message from the neighboring mobile edge platform, The migration response request message indicates that the corresponding service has been started; and the first difference data is transmitted to the neighboring action edge platform corresponding to the migration response request message. The method for managing the content of the user equipment according to the first aspect of the patent application, further comprising: transmitting a user equipment content migration request message to the neighboring mobile edge platform, wherein the user equipment content migration request message includes The service and the identifier information of the above mobile communication device. An action edge platform server for use in a mobile edge computing network includes: a mobile edge platform comprising: a communication device for operating transmission and reception with at least one adjacent mobile edge platform and a mobile communication device Between the wireless transmission and reception; and a controller for receiving, by the communication device, at least one migration request related to the content of the user equipment of the mobile communication device, and calculating the corresponding use according to the at least one migration request Transmitting the first difference data to the neighboring mobile edge platform by using the communication device to request the neighboring mobile edge platform to perform one of the user equipment content migration according to the first difference data. The operation, wherein the first difference data is used to indicate a difference between the contents of the user equipment obtained by two consecutive user equipment content extraction operations of the at least one migration request. The mobile edge platform server of claim 9, further comprising at least one virtual machine, wherein the controller further receives a first user equipment content from the adjacent mobile edge platform through the communication device, from the foregoing proximity The action edge platform receives a second difference data, performs a combined calculation according to the second difference data and the first user equipment content, generates a second user equipment content, and updates the second user equipment content to a corresponding The above virtual machine in the service. The mobile edge platform server according to claim 10, wherein the controller further detects one of the corresponding services before updating the content of the second user equipment to the virtual machine of the corresponding service. The system is in an open state or a closed state, and corresponding to detecting that the foregoing state of the corresponding service is the closed state, performing one of the corresponding services to start a job to start the corresponding service. The action edge platform server according to claim 10, wherein the controller further deletes the second difference data after updating the content of the second user equipment to the virtual machine of the corresponding service. The action edge platform server according to claim 10, wherein the controller further receives a service status query request from the neighboring action edge platform through the communication device, corresponding to the service status query request, and detecting One state of the corresponding service is an open state or a closed state, and corresponding to detecting the state of the corresponding service is the closed state, performing one of the corresponding services to start a job to start the corresponding service, the controller After the completion of the startup operation, a migration response request message is transmitted to the proximity action edge platform through the communication device, so that the neighboring action edge platform transmits the second difference data. The action edge platform server according to claim 9, wherein the controller further receives a deletion request from the adjacent action edge platform through the communication device, and deletes the first difference according to the deletion request. data. The mobile edge platform server according to claim 9, wherein the controller further transmits a service status query request to the neighboring mobile edge platform through the communication device, and receives the proximity action edge platform from the communication device through the communication device. One of the migration response request messages, the migration response request message indicating that the corresponding service has been started, and corresponding to the migration response request message, transmitting the first difference data to the neighboring action edge platform. The action edge platform server according to claim 9, wherein the controller further transmits a user equipment content migration request message to the neighboring mobile edge platform through the communication device, wherein the user equipment content migration request message The identifier information about the above corresponding service and the above mobile communication device is included.