CN109936614B - Action edge platform server and migration management method of user equipment content - Google Patents
Action edge platform server and migration management method of user equipment content Download PDFInfo
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Abstract
The present disclosure provides a method for managing user equipment content migration for a mobile communication device. An embodiment includes: receiving at least one migration request of the content of the user equipment; calculating first difference data corresponding to the content of the user equipment according to the at least one migration request, wherein the first difference data is used for representing the difference between the content of the user equipment obtained by two consecutive user equipment content extraction operations corresponding to the at least one migration request; and transmitting the first difference data to the neighboring mobile edge platform to request the neighboring mobile edge platform to execute the migration operation of the content of the user equipment according to the first difference data.
Description
Technical Field
The invention relates to a mobile edge platform server and a migration management method of user equipment content thereof.
Background
In a typical mobile communication system, a User Equipment (UE) may communicate with a serving network wirelessly for voice and/or data services via a base station, wherein the wireless communication between the UE and the serving network may be performed according to various wireless technologies, such as: global System for Mobile communications (GSM) technology, General Packet Radio Service (GPRS) technology, Enhanced Data for Global Evolution (EDGE) technology, Wideband Code Division Multiple Access (WCDMA) technology, Code Division Multiple Access (Code Division Multiple Access) 2000 technology, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) technology, Worldwide Interoperability for Microwave Access (WiMAX) technology, Long Term Evolution (Long Term Evolution, LTE) technology, Long Term Evolution (LTE) technology, and modified LTE technology.
In recent years, as the public demand for cloud computing and networking has increased greatly, a new generation of mobile communication system (5G) has also been proposed. The new generation mobile communication system needs to have the features of low delay, high capacity and more consistency. To achieve the low latency feature, a new network architecture called Mobile Edge Computing (MEC) is emerging. Generally, a Mobile Edge operates at a near end of a backhaul network close to a base station, a server is placed, a lightweight cloud is built to provide cloud computing and storage capability, so as to intercept data returned to a back-end core network to the server for computing, and by migrating an application service traditionally built in a data center to a Mobile Edge Platform (MEP), a user can use the application service deployed on the Mobile Edge Platform, which has the following advantages: (1) the adjacent users can effectively reduce the delay time of the service; (2) when the data is operated at the action edge, the data load transmitted through the core network can be effectively reduced; and (3) providing wireless network end service quality parameter setting to ensure service quality and further improve user experience.
Current mobile edge computing architectures need to support intelligent reconfiguration ("Smart Relocation"), i.e., when a user uses services on a mobile edge platform, if the user moves between different mobile edge platforms and needs to access a new mobile edge platform, the services used by the user must be migrated to the services at the same time as the user moves. In the data center environment, data of a service is set in a Virtual Machine ((Virtual Machine)/Container) on a mobile edge platform, and conventionally, when the service is to be migrated, all data in the entire Virtual Machine needs to be moved, which causes the moved data to be too large in volume and take too long time. Meanwhile, in the environment of the mobile edge computing, if the user moves continuously and switches to access different mobile edge platforms, the virtual machine needs to be migrated continuously, which often reduces the system performance. In addition, if only the newly added data of the original virtual machine is migrated during the service migration, the newly added data is not the data of the mobile user, which may waste network resources and transmission time.
Disclosure of Invention
In view of the above, the present disclosure provides a mobile edge platform server applied to a mobile edge computing network and a migration management method for user equipment content applied to a mobile edge platform.
According to an embodiment of the present disclosure, a migration management method for user equipment content is provided, which is applied to an action edge platform to manage user equipment content of a user equipment. The migration management method comprises the following steps: receiving at least one migration request of the content of the user equipment; calculating first difference data corresponding to the user equipment content according to the at least one migration request, wherein the first difference data is used for representing the difference between the user equipment content obtained by two consecutive user equipment content extraction operations responding to the at least one migration request; and transmitting the first difference data to at least one neighboring mobile edge platform to request the neighboring mobile edge platform to perform a migration operation of the UE content according to the first difference data, wherein the mobile edge platform is connected to the neighboring mobile edge platform and wirelessly connected to the UE.
According to another embodiment of the present disclosure, a mobile edge platform server for a mobile edge computing network is provided, including a mobile edge platform including a communication device and a controller. The communication device is used for transmitting and receiving with at least one adjacent mobile edge platform and wirelessly transmitting and receiving with the user equipment. The controller is configured to receive a migration request of a piece of user equipment content related to the user equipment through the communication device, calculate difference data corresponding to the piece of user equipment content according to the migration request, and transmit the difference data to the neighboring mobile edge platform through the communication device to request the neighboring mobile edge platform to perform a migration operation of the piece of user equipment content according to the difference data, where the first difference data is used to indicate a difference between the piece of user equipment content obtained by two consecutive user equipment content extraction operations in response to the at least one migration request.
The methods of the present disclosure may be implemented by an apparatus or system of the present disclosure as hardware or firmware for performing the specified functions, or may be stored in memory as program code and/or embodied in a computer readable storage medium/computer program product for performing the specified functions in combination with the specified hardware. When the program code is loaded into and executed by an electronic device, controller, computer processor, or machine, the electronic device, controller, computer processor, or machine becomes an apparatus or system for practicing the disclosure.
Drawings
FIG. 1 is a diagram illustrating a mobile communication environment according to an embodiment of the present disclosure.
FIG. 2 is a diagram illustrating a hardware architecture of a mobile edge platform according to an embodiment of the present disclosure.
FIG. 3 is a block diagram of a functional module architecture of a mobile edge platform according to an embodiment of the present disclosure.
Fig. 4 shows a flowchart of a migration management method of user equipment content according to an embodiment of the present disclosure.
FIG. 5 is a schematic diagram illustrating a portion of a UE content delivery difference between mobile edge platforms for any two consecutive UE content extraction requests according to an embodiment of the disclosure.
Fig. 6A-6C are information sequence diagrams illustrating differential data migration of ue content when the mobile communication device is about to start migration according to an embodiment of the present disclosure.
FIG. 7 is an information sequence diagram of a portion of a user equipment content differential migration process plus a query for service status on a destination mobile edge platform according to an embodiment of the disclosure.
100-mobile communication environment;
110-mobile communication device;
120-a service network;
122. 124 base station;
120-a service network;
130-mobile edge computing network;
140-core network;
150-mobile edge platform server;
152-virtual machine;
c1, C2-user equipment content;
200-mobile edge platform;
210-a communication device;
220-a controller;
230-a storage device;
310. 320, 330, 340 to a management module;
s402, S404 and S406;
MEPA, MEP B-mobile edge platform (200);
a1, A2, A2 ', A3, A3', B1, B2-user device content;
510. 520-data;
UE 1-mobile communication device;
310A, 320A, 330A, 340A-management module;
310B, 320B, 330B, 340B-management module;
VMA, VMB virtual machine;
s601, S602, …, and S618; and
s701, S702, S703, S704, S705.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is noted that the embodiments described in this section are for illustrative purposes only and are not intended to limit the scope of the invention, which is defined by the appended claims. It should be understood that the following embodiments may be implemented via software, hardware, firmware, or any combination thereof.
The embodiment of the disclosure provides a system and a method for User Equipment content (UE Context) migration assisted by a Mobile Edge Platform based on a Mobile Edge Computing (MEC) environment, when a specific User moves and a Mobile Edge Platform (MEP) access switch occurs, only part of the User Equipment content (UE Context) of the specific User needs to be moved, so that a Service (Service) to be used can be rapidly migrated, thereby reducing migration time and improving the efficiency of the whole system.
FIG. 1 is a diagram illustrating a mobile communication environment according to an embodiment of the present disclosure. In the mobile communication environment 100, the mobile communication device 110 is wirelessly connected to a base station 122 or a base station 124 of the service network 120 through an air interface to obtain a wireless access service. Generally, the base stations 122 and 124 can be base stations or access stations, or home base stations of a wideband code division multiple access system or evolved home base stations of a long term evolution system, and the base stations 122 and 124 are controlled by a control node to provide wired/wireless transmission functions required by the service network 120. The mobile communication device 110, also called User Equipment (UE) or mobile station, can support various radio access technologies, and the mobile communication device 110 can be a device, such as a mobile phone, a computer system, etc. Mobile communication device 110 may comprise at least one communication device and a controller for performing wireless transmissions with base station 122 and base station 124. The mobile communication device 110 can perform wired and/or wireless communication of voice and/or data services with the service network 120 through the base stations 122 and 124, wherein the wireless communication between the mobile communication device 110 and the service network 120 can be performed according to various wireless technologies, such as: global System for Mobile communications (GSM) technology, General Packet Radio Service (GPRS) technology, Enhanced Data for Global Evolution (EDGE) technology, Wideband Code Division Multiple Access (WCDMA) technology, Code Division Multiple Access (Code Division Multiple Access) 2000 technology, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) technology, Worldwide Interoperability for Microwave Access (WiMAX) technology, Long Term Evolution (Long Term Evolution, LTE) technology, Long Term Evolution (LTE) technology, and modified LTE technology. The service network 120 includes a mobile edge computing network 130 and a core network 140(core network). Although the disclosure is not limited thereto, a plurality of Mobile Edge platform servers 150 (or called Mobile Edge hosts) are connected to each other in a wireless or wired manner to form the Mobile Edge computing network 130. The core network 140 is used to perform action management, network-side authentication, and interfacing with public networks, such as 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), a Serving Gateway (S-GW), and a 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, and is configured to provide a mobile edge computing environment, and a lightweight cloud is built near the backhaul network of the base stations 122 and 124 to provide cloud computing and storage capability, so as to intercept data transmitted back to the back-end core network 140 to the mobile edge platform server 150 for computing processing. Each Mobile Edge Platform server 150 further includes a Mobile Edge Platform (MEP) 200 and a plurality of Virtual machines (Virtual machines) and/or containers (containers) 152. The mobile communication device 110 can be wired/wireless connected to different mobile edge platforms 200 of the mobile edge computing network 130 through base stations 122 and 124, respectively. The base stations 122 and 124 can be connected to the mobile edge computing network 130 via various networks such as wired connection, e.g., internet, wired lan, etc., and/or wireless connection, e.g., wireless network, Wideband Code Division Multiple Access (WCDMA) network, 3G network, Wireless Lan (WLAN), bluetooth network, etc., to access the mobile edge platforms 200 in the mobile edge computing network 130 and perform communication and data transmission therebetween. For example, although the disclosure is not limited in this regard, base station 122 may be connected to the mobile edge computing network 130 via a wireless connection, and base station 124 may be connected to the mobile edge computing network 130 via an ethernet cable, and may be connected to the internet and to the core network 140 via the internet. In this embodiment, the mobile communication device 110 can access one mobile edge platform 200 in the mobile edge computing network 130 through the base station 122 and another mobile edge platform 200 in the mobile edge computing network 130 through the base station 124. The mobile edge platform 200 can run various services with low latency requirement, data analysis assistance and regional association, which include internet of vehicles (V2X), Virtual Reality (visual Reality), Augmented Reality (Augmented Reality), real-time Online Game (Instant Online Game), health care (eHealth) and Video analysis (Video Analytics), but the disclosure is not limited thereto. Services running on the mobile edge platform 200 are all run in the corresponding virtual machine or container 152 of the mobile edge platform services framework 150. For simplicity, in the following embodiments, virtual machines and/or containers 152 are collectively referred to as virtual machines 152. Each virtual machine 152 includes at least one or more user equipment content (UE Context) corresponding to one or more specific services for one or more users of the mobile communication device 110. For example, the first user device content C1 and the second user device content C2 may be included in the virtual machine 152, while the first user device content C1 and the second user device content C2 may correspond to different users of the same service, to the same user of different services, or to different users of different services. The content of the user equipment is context data for each user to use the service. For example, in one embodiment, the user device content may be an archive in JSON, XML, YAML, or the like, but the disclosure is not limited thereto.
FIG. 2 is a hardware architecture diagram of a mobile edge platform 200 according to an embodiment of the present disclosure. As shown in fig. 2, the mobile edge platform 200 at least includes a communication device 210, a controller 220, and a storage device 230.
The communication device 210 is used for receiving information of the mobile communication device 110 and other mobile edge platforms 200. Specifically, the communication device 210 can receive signals from the current connection network and transmit signals to the current connection network. The communication device 210 may include a wired communication module that may be coupled (electrically connected) to one or more wired networks and may allow the wired networks to be utilized to communicate with one or more additional devices, computer servers, and/or network nodes, such as base stations. The communication device 210 may further include a wireless module that may be coupled (electrically connected) to one or more antennas (not shown) and may allow a wireless network to be used to communicate with one or more additional devices, computer servers, and/or network nodes (e.g., base stations, etc.). The mobile EDGE platform 200 may support various communication protocols such as Code Division Multiple Access (CDMA), Global System for Mobile communications (GSM), Enhanced Data GSM Environment (EDGE), High Speed Downlink Packet Access (HSDPA), Wi-Fi (e.g., IEEE's 802.11a/b/g/n), Bluetooth, and Wi-MAX, as well as e-mail, real-time Information (IM), and Intelligent information service (SMS) protocols or standards for other wireless access technologies, although the disclosure is not limited thereto. Specifically, the communication device 210 is coupled (electrically connected) to the controller 220 and bi-directionally connected to the communication device with the same channel (channel) and protocol (protocol), so as to receive various external information, such as information sent by each mobile communication device 110 and the mobile edge platform 200, and output the information to the controller 220, and broadcast the information output by the controller 220 to the outside through the communication device 210.
The controller 220 may be a general-purpose controller, a Micro-Control Unit (MCU), a Graphics controller (GPU), a Digital Signal Processor (DSP), or the like, and is used to provide data analysis, Processing, and operation functions, 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 the instruction set and/or the program code from the storage device 230 to control the operation of the communication device 210 and the storage device 230 to execute the migration management method of the ue content of the present application, which will be described in the following paragraphs.
The storage device 230 may be a non-volatile storage medium (e.g., a Read-Only Memory (ROM), a Flash Memory (Flash Memory), a hard disk, an optical disk, etc.), a volatile storage medium (e.g., a Random Access Memory (RAM)), or any combination thereof, and is configured to store related data, such as intermediate data and execution result data during operation. The storage device 230 may also be used to store a set of instructions and/or program code program modules that may be executed by the controller 220, although the disclosure is not limited thereto. Generally, program modules include routines, programs, objects, components, and the like. The storage device 230 may further store various data required for operations, such as: user device content, difference data, etc., although the disclosure is not so limited.
Those skilled in the art will appreciate that the circuit logic in controller 220 may typically include a plurality of transistors for controlling the operation of the circuit logic to provide the desired functionality and operation. Furthermore, the specific structure of the transistors and the link relationship between them are usually determined by the compiler, such as: a Register Transfer Language (RTL) compiler may be run by the processor to compile script files (scripts) like assembly Language code into a form suitable for designing or manufacturing 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 for providing wireless transmission and reception with each of the base stations 122 and 124 and each of the mobile edge platforms 200 in the mobile communication environment 100 and a controller for controlling the operation of the communication device. The operation of the communication device and the controller of the mobile communication device 110 is similar to that of the embodiment of fig. 2, and will not be described herein again.
FIG. 3 is a block diagram illustrating a functional module architecture of a mobile edge platform 200 according to an embodiment of the present disclosure. The functional module architecture of the mobile edge platform 200 includes a user equipment content Management (UE Context Management) module 310, a Service Management (Service Management) module 320, a Smart reconfiguration Management (Smart Relocation Management) module 330, and a mobile edge platform Neighbor Management (MEP Neighbor Management) module 340. The ue content management module 310, the service management module 320, the intelligent reconfiguration management module 330, and the mobile edge platform neighbor management module 340 may be stored in the storage device 230 (e.g., a memory) of the mobile edge platform 200, and may be loaded and executed by the controller 220 of the mobile edge platform 200 at an appropriate time. Specifically, the controller 220 may control operations of the ue content data management module 310, the service management module 320, the intelligent reconfiguration management module 330 and the mobile edge platform neighbor management module 340 to perform the migration management method applied to the ue content of the mobile edge platform 200.
The ue content management module 310 mainly performs actions of importing, extracting, deleting and stopping one or more ue contents on the virtual machine 152 through a dedicated Application Programming Interface (API). Specifically, the ue content management module 310 sends a ue content extraction request to the virtual machine 152 once through a dedicated Application Programming Interface (API) for each migration request, performs a ue content extraction operation, and compares the ue content obtained by two consecutive ue content extraction operations, so as to calculate and generate a difference data Diff, or integrates the difference data Diff received by the neighboring mobile edge platform 200 into the corresponding ue content. Wherein the difference data Diff represents a difference portion between the user equipment contents obtained by the user equipment content management module 310 in response to two consecutive user equipment content extraction operations of the migration request. That is, the difference data Diff records the change between the current ue content obtained by the ue content management module 310 sending the ue content extraction request for the same user on the same service to the virtual machine 152 through a dedicated Application Programming Interface (API) and the ue content obtained by the previous ue content management module 310 sending the ue content extraction request to the virtual machine 152 through a dedicated Application Programming Interface (API). In some embodiments, the user device content management module 310 may also generate a Profile (Profile) of the particular user device content to record information about the source of the user device content, etc.
The service management module 320 performs a status query and a start action on each service on the virtual machine 152 through an Application Programming Interface (API). The intelligent reconfiguration management module 330 is responsible for communicating with other mobile edge platforms 200 regarding ue content migration and receiving mobility events triggered by the mobile communication devices 110. For example, the movement event may include a time indication of the start of movement and the completion of movement of the mobile communication device 110. The mobile edge platform neighbor management module 340 can communicate with the neighboring mobile edge platforms 200 (periodically with a predetermined period or triggered by a specific event), collect information of the neighboring mobile edge platforms 200, and manage and record the information of the neighboring mobile edge platforms 200, so as to know which ue contents are to be migrated by the neighboring mobile edge platforms when a ue content migration procedure is required. The mobile edge platform 200 has a plurality of corresponding virtual machines 152, and each service running on the mobile edge platform 200 is run in the corresponding virtual machine 152 on the mobile edge platform. Each virtual machine 152 includes at least one or more user device content within the architecture. The ue content is not only provided for accessing the corresponding service in the virtual machine 152, but also provided for the mobile edge platform 200 to directly access the ue content through an Application Programming Interface (API), so as to meet the requirement of the mobile edge platform switching and service migration caused by the user movement.
In particular, the controller 220 may access the corresponding user device content of the service requiring migration through the user device content management module 310, the service management module 320 performs status query and start operations on the specified service on the virtual machine 152, communicates with other mobile edge platforms 200 via the intelligent reconfiguration management module 330 regarding ue content migration, and receives a mobility event triggered by the mobile communication device 110, and obtains information related to neighboring mobile edge platforms for service migration through the mobile edge platform neighbor management module 340, in response to the switching of the mobile edge platform and the migration requirement of the service caused by the user movement, a migration operation of the user equipment content is executed, and the user equipment content of the service with the migration requirement is moved to the corresponding mobile edge platform, the details of which will be described later.
Although not shown, the mobile edge platform 200 may further include other functional units, such as: for input/output devices (e.g., physical keys or keyboards), or display devices, audio devices, etc., and the disclosure is not limited thereto.
It is understood that each component or module is a device with corresponding functions, and can have appropriate hardware circuit or component to execute the corresponding functions, however, the device is not limited to having entity, and can also be a virtual program or software with corresponding functions, or a device with capability of processing and running the program or software, and the disclosure is not limited thereto. The operation of each component can be further described with reference to the following corresponding method. In an embodiment, the ue content management module 310, the service management module 320, the intelligent reconfiguration management module 330 and the mobile edge platform neighbor management module 340 may be implemented as a chip, a circuit board or a circuit, and the controller 220 may control the operations of the ue content management module 310, the service management module 320, the intelligent reconfiguration management module 330 and the mobile edge platform neighbor management module 340 to perform the migration management method of the ue content, which will be described in detail later.
Fig. 4 shows a flowchart of a migration management method of user equipment content according to an embodiment of the present disclosure. Please refer to fig. 1, fig. 2, fig. 3 and fig. 4. The migration management method of ue content according to the embodiment of the present disclosure may be applied to any mobile edge platform in a mobile edge computing network, for example, the migration management method may be applied to the mobile edge platform 200 of fig. 2 and executed by the controller 220 of the mobile edge platform 200. 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 crosses to the neighboring mobile edge platform MEP _ B during the use of the service SRA, thereby generating the handover of the mobile edge platform and the migration requirement of the service.
When the mobile communication device 110 uses the service SRA and moves from the source mobile edge platform 200 (e.g., MEP _ a) to the neighboring mobile edge platform MEP B to perform a handover (UE context switch) of the UE content, as shown in S402, the controller 220 of the mobile edge platform 200 receives at least one migration request of the UE content through the communication device 210.
As shown in S404, the controller 220 of the mobile edge platform 200 calculates a difference data of the corresponding ue content according to the at least one migration request, wherein the difference data represents a difference between the ue contents obtained by two consecutive ue content extraction operations performed by the ue content management module 310 in response to the at least one migration request. Specifically, the ue content management module 310 sends consecutive ue content extraction requests to the virtual machine 152 through a dedicated Application Programming Interface (API) to obtain corresponding ue content, and the controller 220 accesses the served ue content at a time point when each ue content management module 310 sends the ue content extraction request, compares the current ue content obtained by the current ue content extraction operation with the ue content obtained by the previous ue content extraction operation, calculates a difference portion therebetween, and generates difference data according to the difference portion. In other words, the difference data may record the location and size of the difference portion between the user device contents obtained by two consecutive user device content extraction operations for representing the difference between the user device contents of the two consecutive user device content extraction operations.
After generating the difference data, as shown in S406, the controller 220 of the mobile edge platform 200 transmits the difference data to a neighboring mobile edge platform responding to the migration request via the communication device 210 to request the neighboring mobile edge platform to perform a migration operation of the ue content according to the difference data. In this embodiment, since the mobile communication device 110 moves from the source mobile edge platform 200 to the neighboring mobile edge platform MEP _ B, the neighboring mobile edge platform responding to the migration request is MEP _ B.
After the MEP B receives the difference data from the neighboring MEP 200 through the communication device, the controller of the MEP _ B performs a merging calculation according to the received difference data and the previously received content of the first user equipment to generate a content data of the second user equipment, and then updates the content of the second user equipment to a virtual machine 152 corresponding to the service SRA on the MEP B, so as to migrate the original service SRA to the MEP B for continuous execution.
In another embodiment, when the mobile communication device 110 using a service SRB moves from another source mobile edge platform MEP C to the mobile edge platform 200, and the mobile edge platform 200 is a destination mobile edge platform (Target MEP), the mobile edge platform 200 may receive another difference data (second difference data) from the MEP C through the communication device 210, and then perform a merging calculation according to the received difference data and the previously received ue content to generate new ue content data, and update the new ue content to a virtual machine 152 corresponding to the service SRB on the mobile edge platform 200, so as to migrate the original service SRB to the mobile edge platform 200 for further execution.
Referring to fig. 5, fig. 5 is a schematic diagram illustrating only a portion of the difference in ue content delivery between two consecutive ue 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 neighboring mobile edge platform MEP _ B, and at time t0, this time is the UE content extraction request of the 1 st time, the service in the mobile edge platform MEP _ B has no UE content yet, so the mobile edge platform MEP _ a performs the UE content extraction operation of the 1 st time to obtain the current UE content a1 of the service in the virtual machine 152 and transmits the entire UE content a1 to the mobile edge platform MEP B. The action edge platform MEP B then gets the user device content a1 and updates the user device content a1 to the user device content of the corresponding service.
Assuming that the user device content changes at time t1 and a2 nd user device content extraction request occurs, the action edge platform MEP a performs a2 nd user device content extraction operation to access the in-service user device content a2, and performs a difference calculation between the user device content a2 and the user device content a1 obtained from the previous user device content extraction operation (i.e., the 1 st user device content extraction operation), and the obtained difference portion is the partial data 510 of the user device content a2, so that difference data a2 'is generated from the partial data 510, and only the difference data a 2' is transmitted to the action edge platform MEP B.
When the action edge platform MEP B receives the difference data a2 ', it takes the previously received user device content a1 from the service and merges the user device content a1 with the difference data a 2' to generate a new user device content B1 (i.e., user device content a2), and then updates the new user device content B1 to the corresponding service. In particular, the new user device content B1 is the restored user device content a2, and the action edge platform MEP B updates the user device content B1 to the user device content of the corresponding service.
Similarly, suppose that when a2 nd request for user equipment content extraction occurs at time t2, the action edge platform MEP A performs A3 rd user equipment content extraction operation to access the in-service user equipment content A3, and performs a difference calculation on the user equipment content A3 and the user equipment content A2 obtained from the previous user equipment content extraction operation (i.e., the 2 nd user equipment content extraction operation), and the difference part is the partial data 520 of the user equipment content A3, so that the difference data A3 'is generated from the partial data 520, and only the difference data A3' is transmitted to the action edge platform MEP B.
When the action edge platform MEP B receives the difference data A3 ', it takes the previously received user device content B1 from the service and merges the user device content B1 with the difference data A3' to generate a new user device content B2 (i.e., user device content A3), and then updates the new user device content B2 to the corresponding service. In particular, user device content B3 is restored user device content A3.
In one embodiment, after the mobile edge platform 200 (e.g., MEP B shown in fig. 5) receives the difference data from the neighboring mobile edge platform (e.g., MEP a shown in fig. 5) through the communication device 210 and updates the integrated new ue content to the virtual machine 152 of the corresponding service, the controller 220 of the mobile edge platform 200 can automatically delete the difference data to save the storage space. In another embodiment, after the mobile edge platform 200 (e.g., MEP A shown in FIG. 5) transmits the difference data to the neighboring mobile edge platform (e.g., MEP B shown in FIG. 5) in the migration path via the communication device 210, the controller 220 receives a delete request from the neighboring mobile edge platform via the communication device 210 and deletes the difference data in response to the delete request. The neighboring mobile edge platform may send the delete request to the mobile edge platform 200 after completing the update of the new ue content to the corresponding service.
Therefore, the user equipment content obtained by two consecutive user equipment content extraction requests between adjacent action edge platforms only needs to be transmitted by the difference part and only needs to be moved by the user equipment content, the smaller the difference part is, the smaller the transmission data volume is, and the less the required migration time is, so that the service required to be used can be rapidly migrated, thereby reducing the migration time and improving the efficiency of the whole system. When a large amount of user equipment content needs to be frequently transmitted between different mobile edge platforms, because only part of the user equipment content needs to be moved, the problems that a large amount of migration is caused and system efficiency is reduced if a user continuously moves and switches to access different mobile edge platforms, and network resources and transmission time are wasted because only newly added data of an original virtual machine is not the mobile user data when the service is migrated in the prior art can be effectively solved.
Some embodiments are listed below to assist in explaining practical application details of the method of migration management of user equipment content according to the present disclosure, but the present disclosure is not limited thereto.
Fig. 6A-6C are sequence diagrams illustrating differential data migration of user equipment content when a mobile communication device UE1 (e.g., the mobile communication device 110 of fig. 1) has user equipment content to start migration according to an embodiment of the present invention. In this embodiment, it is considered that the mobile communication device UE1 executes a first service SRA (e.g. V2X or AR application service) from the source mobile edge platform MEPA and moves to the destination mobile edge platform MEP _ B, so that the source mobile edge platform MEP _ A receives a migration request for the user equipment content. 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 ue content management module 310A, a service management module 320A, an intelligent reconfiguration management module 330A, and an action edge platform neighbor management module 340A, and the action edge platform MEP B includes a ue content management module 310B, a service management module 320B, an intelligent reconfiguration management module 330B, and an action edge platform neighbor management module 340B. The UE1 is stored in the vm VMA in the mobile edge platform MEP _ a and in the vm VMB in the mobile edge platform MEP _ B corresponding to the UE content of the first service SRA.
As shown in fig. 6A, the intelligent reconfiguration management module 330A on the source mobile edge platform MEP a receives a UE content Migration Indication Message (UE Context Migration Indication Message) including at least a UE ID (UE ID) (S601). In this embodiment, the user equipment identifier is UE 1. For example, the ue content migration indication information may be generated in response to a handoff (handoff) request or a service migration request. The intelligent reconfiguration management module 330A sends a Neighbor mobile edge platform Information Request (Neighbor MEP Information Request) including at least the ue id to the mobile edge platform Neighbor management module 340A, as shown in fig. 6A (S602). After receiving the neighboring mobile-edge-platform-Information-request message, as shown in fig. 6A, the mobile-edge-platform-Neighbor-management module 340A performs a neighboring mobile-edge-platform-Information (Neighbor MEP Information) acquisition process (S603). Since the mobile edge platform neighbor management module 340A can collect information of all surrounding mobile edge platforms by communicating with the corresponding mobile edge platform neighbor management modules of neighboring mobile edge platforms, a mobile edge platform identifier (MEP IP) corresponding to the ue identifier (UEl) can be obtained. Wherein the action edge platform identifier indicates which action edge platform the next action edge platform to be migrated is. In this embodiment, since the destination mobile edge platform is MEP _ B, the mobile edge platform identifier is MEP _ B.
After obtaining the mobile edge platform identifier (MEP _ B) corresponding to the UE identifier (UE1), as shown in FIG. 6A, the mobile edge platform Neighbor management module 340A sends a Neighbor mobile edge platform Information Response Message (Neighbor mobile edge platform Information Message) including at least the UE1 and the MEP _ B to the reconfiguration management module 330A (S604), through the neighboring mobile edge platform information response message, the intelligent reconfiguration management module 330A on the mobile edge platform MEPA sends UE content Migration Request information (UE Context Migration Request message) including at least the UE identifier (UE1) and the Service identifier (MEP Service ID) to the intelligent reconfiguration management module 330B corresponding to the mobile edge platform identifier (MEP _ B) (S605). In this embodiment, the mobile edge platform identifier is MEP _ B and the service identifier is SRA. That is, the source action edge platform MEP _ A can determine that the destination action edge platform is MEP _ B by the action edge platform identifier, and the source action edge platform MEP _ A can tell the destination action edge platform MEP _ B the information that the corresponding UE content of which UE (i.e., UE1) of which service (i.e., SRA) needs to be migrated via the UE identifier and the service identifier.
In Response to the UE content Migration request message, as shown in fig. 6B, the intelligent reconfiguration management module 330B transmits a UE content data Migration Response message (UE Context Migration Response message) including at least the UE identifier (UE1) to the intelligent reconfiguration management module 330A on the source mobile edge platform MEP _ a (S606) to inform the source mobile edge platform MEP _ a that the corresponding UE content of the UE1 that is known to be the SRA service needs to be migrated. The intelligent reconfiguration manager 330A on the source mobile edge platform MEP a, in response to the UE content migration response message, sends UE content difference calculation Request information (UE Context Diff Request message) including at least the UE identifier (UE1) to the UE content management module 310A, as shown in fig. 6C (S607).
Accordingly, the user equipment content management module 310A transmits user equipment content Export Request information (UE Context Export Request message) including at least a user equipment identifier (UE1) to the virtual machine VMA in which the user equipment content is located through the API, as shown in fig. 6C (S608). In this embodiment, the ue content export request information is the ue content extraction request information, and is used to perform a ue content extraction operation. In Response to the user device content Export request information, as shown in fig. 6C, the virtual machine VMA obtains a user device content C1 corresponding to the user device identifier from the user device identifier (UE1), and sends a user device content Response message (UE Context Response message) including at least the user device identifier (UE1), the data type "Export", and the obtained user device content C1 to the user device content management module 310A (S609).
The UE content management module 310A calculates difference data Diff of the UE content according to the UE content response message (S610), compares the current UE content C1 in the UE content response message with the stored UE content (e.g., C0) obtained from the previous UE content extraction operation, obtains a difference portion therebetween, generates difference data Diff (i.e., Diff ═ C1-C0) according to the difference portion, and sends a UE content difference response message (UE Context difference message) including at least the UE identifier (UE1) and the difference data Diff to the intelligent reconfiguration management module 330A after obtaining the difference data, as shown in fig. 6C (S611).
The intelligent reconfiguration management module 330A sends the UE Context Transfer information (UE Context Transfer message) including at least the UE identifier (UE1) and the difference data Diff to the intelligent reconfiguration management module 330B of the mobile edge platform MEP B (as shown in fig. 6C) (S612), and the intelligent reconfiguration management module 330B accordingly sends the UE Context Transfer information (UE Context Transfer message) including at least the UE identifier (UE1) and the difference data Diff to the UE Context management module 310B (as shown in fig. 6B) (S613).
The UE content management module 310B performs a difference merge and merge operation of the UE content after receiving the UE content difference transmission information, extracts the difference data Diff, performs a merge calculation according to the currently received difference data Diff and the previously received UE content (C0), integrates the difference part indicated by the difference data Diff into the location corresponding to the previously received UE content, generates new UE content data C2(C2 ═ C0+ Diff ═ C1) (S614), and sends UE content Import information (image Request message) including UE1 and new UE content data C2 to the virtual machine VMB, so as to update the new UE content C2 into the corresponding UE content of the virtual machine VMB (as shown in fig. 6B) (S615). In detail, since the mobile edge platform MEP _ B already knows the service to be migrated and the location of the user equipment content according to the user equipment content migration request information, it is possible to easily update the new user equipment content to the corresponding user equipment content.
After the virtual machine VMB updates the new UE content to the corresponding UE content therein, it sends back to the UE content management module 310B a UE content Response message (UE Context Response message) at least including the UE identifier (UE1) and the data type "image" (as shown in fig. 6B) (S616).
The UE content management module 310B sends a UE content difference Transfer Response message (UE Context Transfer Response message) including at least the UE identifier (UE1) to the intelligent reconfiguration management module 330B (as shown in fig. 6B) (S617).
The intelligent reconfiguration management module 330B accordingly sends a UE content difference Transfer Response message (UE Context Transfer Response message) including at least the UE identifier (UE1) to the intelligent reconfiguration management module 330A of the mobile edge platform MEPA (as shown in fig. 6B) (S618), and completes one handover of the UE content across the mobile edge platform. The information sequence of fig. 6A-6C can be repeatedly run each time a handover of user equipment content across the mobile edge platform is required.
In some embodiments, since the service to be migrated may not be directly available and updated because it is not already started, the controller 220 of the mobile edge platform 200 may first determine whether the service is already started, and start the service if it is determined that the service is not already started. In one embodiment, the mobile edge platform 200 may detect a state of the corresponding service as an on state or an off state before updating the integrated ue content into the virtual machine of the corresponding service, and determine whether to execute a start operation of the corresponding service according to the detected state of the corresponding service. In response to detecting that the state of the corresponding service is an off state, which indicates that the corresponding service is not already turned on, the mobile edge platform 200 performs an activation operation of the corresponding service to update the content of the corresponding ue after the activation of the service. In another embodiment, the mobile edge platform 200 may detect a status of the corresponding service as an on status or an off status in response to the service status query request when receiving a service status query request from a neighboring mobile edge platform, execute an activation operation of the corresponding service in response to detecting that the status of the corresponding service is the off status, and transmit a migration response request message to the neighboring mobile edge platform after the activation operation is completed, so that the neighboring mobile edge platform starts to transmit the difference data. In another embodiment, when the mobile edge platform 200 is the source mobile edge platform, the controller 220 may send a service status query request to the destination neighboring mobile edge platform via the communication device 210, receive a migration response request message indicating that the corresponding service has been initiated from the neighboring mobile edge platform via the communication device 210, and send the difference data to the neighboring mobile edge platform via the communication device 210 in response to the migration response request message.
Fig. 7 shows an information sequence diagram of a UE content differential Migration (UE Context Diff Migration) procedure plus a portion of a query for service status on the destination mobile edge platform MEP _ B according to an embodiment of the present invention. Please refer to fig. 6A-6C and fig. 7.
When the intelligent reconfiguration management module 330B receives the Migration Request message (UE Context Request message) including at least the UE identifier (UE1) and the Service identifier (SRA) from the intelligent reconfiguration management module 330A UE (as shown in S605 of fig. 6B), the intelligent reconfiguration management module 330B sends a Service Status query message (ME Service Status message) including at least the Service identifier (MEP Service ID) to the Service management module 320B (S701). In this embodiment, the service identifier is an SRA.
In response to the above Service Status query information, the Service management module 320B sends Service Status query information (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 VMB queries the Status of the Service corresponding to the Service identifier (SRA), and sends an action edge Service Status Response message (ME Service Status Response message) including at least the Service identifier (SRA) and Status data (Status) to the Service management module 320B according to the queried Status result (S703). The state data of the service may be "enable" or "disable" to indicate that the service is in an on or off state, respectively.
In this embodiment, it is assumed that the status data of the Service SRA is "disable", which indicates that the Service SRA is not opened, so the Service management module 320B sends an action edge Service initiation Request message (ME Service Start Request message) including at least a Service identifier (SRA) to the virtual machine VMB to initiate the Service SRA in the virtual machine VMB (S704).
After the virtual machine VMB completes the boot job corresponding to the Service indicated by the Service identifier, an action edge Service boot Response message (ME Service Start Response message) including at least the Service identifier (SRA) is sent to the Service management module 320B, and the Service management module 320B is notified that the boot job of the Service has been completed (S705). The Service management module 320B sends an action edge Service Status Response message (ME Service Status Response message) including at least the Service identifier SRA and the Status "enable" to the intelligent reconfiguration management module 330B (S706). After receiving the action edge service state Response message, the intelligent reconfiguration management module 330B determines that the service SRA to be migrated is opened according to its state ("enable"), and then transmits a UE Context Migration Response message (UE Context Migration Response message) including at least a UE identifier (UE1) to the intelligent reconfiguration management module 330A on the source action edge platform MEP a (as shown in S606 of fig. 6B), and continues the subsequent operation flows of fig. 6A to 6C.
Therefore, according to the mobile edge platform server applied to the mobile edge computing network and the migration management method applied to the user equipment content of the mobile edge platform of the present disclosure, when a user moves and the access of the Mobile Edge Platform (MEP) is switched, the user equipment content (UE Context) of only the moving part needs to be calculated, so that the service to be used can be rapidly migrated, thereby reducing the migration time and improving the efficiency of the whole system.
The methods of the present disclosure, or certain aspects or portions thereof, may take the form of program code. The program code may be embodied in tangible media, such as floppy diskettes, cd-roms, hard drives, or any other machine-readable (e.g., computer-readable) storage medium, wherein, when the program code is loaded into and executed by a machine, such as a computer, the machine becomes an apparatus for practicing the disclosure. The program code may also be transmitted over some transmission medium, such as over electrical wiring or cabling, through fiber optics, or via any other form of transmission, wherein, when the program code is received and loaded into and executed by a machine, such as a computer, the machine becomes an apparatus for practicing the disclosure. When implemented in a general-purpose video controller, the program code combines with the video controller to provide a unique apparatus that operates analogously to application specific logic circuits.
It should be noted that the use of ordinal numbers "first", "second", etc. in the claims does not indicate any chronological order, difference in priority, or other relational order between the elements described, but are used to distinguish different elements having the same name.
Although the present disclosure has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. For example, the systems and methods described in the embodiments of the present disclosure may be implemented in physical embodiments of hardware, software, or a combination of hardware and software. Therefore, the protection scope of the invention should be determined by the appended claims.
Claims (16)
1. A migration management method of user equipment content is applied to a mobile edge platform to manage the user equipment content of a mobile communication device, and comprises the following steps:
receiving at least one migration request of the content of the user equipment;
calculating first difference data corresponding to the user equipment content according to the at least one migration request, wherein the first difference data is used for representing the difference between the user equipment content obtained by two consecutive user equipment content extraction operations responding to the at least one migration request; and
transmitting the first difference data to at least one neighboring mobile edge platform to request the neighboring mobile edge platform to perform the migration operation of the UE content according to the first difference data,
wherein the mobile edge platform is connected to the adjacent mobile edge platform and wirelessly connected to the mobile communication device.
2. The migration management method of user equipment content according to claim 1, wherein the method further comprises:
receiving first user equipment content from the proximate mobile edge platform;
receiving second difference data from the neighboring mobile edge platform, wherein the second difference data is a difference between the user equipment contents obtained by the neighboring mobile edge platform in response to two consecutive user equipment content extraction operations of the received migration request;
performing merging calculation according to the second difference data and the content of the first user equipment to generate content of second user equipment; and
and updating the content of the second user equipment to the virtual machine of the corresponding service.
3. The migration management method of user equipment content according to claim 2, wherein before updating the second user equipment content into the virtual machine of the corresponding service, the method further comprises:
detecting whether the state of the corresponding service is an opening state or a closing state; and
and executing the starting operation of the corresponding service to start the corresponding service in response to detecting that the state of the corresponding service is the closing state.
4. The migration management method of user equipment content according to claim 2, wherein the method further comprises:
and deleting the second difference data after updating the content of the second user equipment into the virtual machine of the corresponding service.
5. The migration management method of user equipment content according to claim 2, wherein the method further comprises:
receiving a service status query request from the neighboring mobile edge platform;
responding to the service state query request, and detecting that the state of the corresponding service is an open state or a closed state; and
in response to detecting that the state of the corresponding service is the shutdown state, executing a startup operation of the corresponding service to start the corresponding service; and
after the start-up operation is completed, a migration response request message is transmitted to the neighboring mobile edge platform, so that the neighboring mobile edge platform transmits the second difference data.
6. The migration management method of user equipment content according to claim 1, wherein the method further comprises:
receiving a delete request from the neighboring mobile edge platform; and
and deleting the first difference data in response to the deletion request.
7. The migration management method of user equipment content according to claim 1, wherein the method further comprises:
transmitting a service status query request to the neighboring mobile edge platform;
receiving a migration response request message from the neighboring mobile edge platform, wherein the migration response request message indicates that the corresponding service is started; and
in response to the migration response request message, the first difference data is transmitted to the neighboring mobile edge platform.
8. The migration management method of user equipment content according to claim 1, wherein the method further comprises:
transmitting a UE content migration request message to the neighboring mobile edge platform, wherein the UE content migration request message includes identifier information regarding a corresponding service and the mobile communication device.
9. A mobile edge platform server applied to a mobile edge computing network, comprising:
a mobile edge platform, comprising:
a communication device for operating transmission and reception with at least one neighboring mobile edge platform and wireless transmission and reception with the mobile communication device; and
a controller for receiving at least one migration request of user equipment content associated with the mobile communication device through the communication device, calculating first difference data corresponding to the user equipment content according to the at least one migration request, and transmitting the first difference data to the neighboring mobile edge platform through the communication device to request the neighboring mobile edge platform to perform a migration operation of the user equipment content according to the first difference data,
wherein the first difference data is used to indicate a difference between the user device contents obtained by two consecutive user device content extraction operations in response to the at least one migration request.
10. The mobile edge platform server of claim 9, wherein the method further comprises at least one virtual machine, wherein the controller further receives a first user device content from the neighboring mobile edge platform via the communication device, receives a second difference data from the neighboring mobile edge platform, performs a merge calculation based on the second difference data and the first user device content to generate a second user device content, and updates the second user device content to the virtual machine corresponding to the service,
wherein the second difference data is a difference between the contents of the ue obtained by the neighboring mobile edge platform responding to two consecutive ue content extraction operations of the received migration request.
11. The mobile edge platform server of claim 10, wherein the controller further detects a status of the corresponding service as an on status or an off status before updating the second ue content into the virtual machine of the corresponding service, and in response to detecting that the status of the corresponding service is the off status, performs an activation operation of the corresponding service to activate the corresponding service.
12. The mobile edge platform server of claim 10, wherein the controller further deletes the second difference data after updating the second ue content into the virtual machine of the corresponding service.
13. The mobile edge platform server of claim 12, wherein the controller further receives a service status query request from the neighboring mobile edge platform via the communication device, detects a status of the corresponding service as an on status or an off status in response to the service status query request, and executes an activation operation of the corresponding service to activate the corresponding service in response to detecting that the status of the corresponding service is the off status, and the controller further transmits a migration response request message to the neighboring mobile edge platform via the communication device after the activation operation is completed, so that the neighboring mobile edge platform transmits the second difference data.
14. The mobile edge platform server of claim 9, wherein the controller further receives a delete request from the neighboring mobile edge platform via the communication device, and deletes the first difference data in response to the delete request.
15. The mobile edge platform server of claim 9, wherein the controller further transmits a service status query request to the neighboring mobile edge platform via the communication device, and receives a migration response request message from the neighboring mobile edge platform via the communication device, the migration response request message indicating that the corresponding service is activated, and
in response to the migration response request message, the first difference data is transmitted to the neighboring mobile edge platform.
16. The mobile edge platform server of claim 9, wherein the controller further transmits a ue content migration request message to the neighboring mobile edge platform via the communication device, wherein the ue content migration request message includes identifier information about a corresponding service and the mobile communication device.
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| CN110445866B (en) * | 2019-08-12 | 2021-11-30 | 南京工业大学 | Task migration and cooperative load balancing method in mobile edge computing environment |
| CN114844865A (en) * | 2021-01-30 | 2022-08-02 | 华为技术有限公司 | Service identifier distribution method and communication device in computational power awareness network |
| CN115102987B (en) * | 2022-06-16 | 2023-10-13 | 平安银行股份有限公司 | Edge equipment management system for banking outlets |
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