CN112788086A - Mobile edge computing application data migration method and device and core network node - Google Patents
Mobile edge computing application data migration method and device and core network node Download PDFInfo
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Abstract
The invention provides a mobile edge computing application data migration method and device and a core network node, and relates to the technical field of Internet of vehicles. The mobile edge computing application data migration method is applied to a mobile edge computing MEC device and comprises the following steps: receiving vehicle position change information sent by a core network node; and migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information. By the scheme, the accuracy and the high efficiency of application data migration are guaranteed.
Description
Technical Field
The invention relates to the technical field of vehicle networking, in particular to a mobile edge computing application data migration method and device and a core network node.
Background
In a Vehicle-to-Everything (V2X) Mobile Edge Computing (MEC) application scenario of the internet of vehicles, a Vehicle user equipment (UE, also called a terminal) has high mobility, which brings great technical challenges to the overall architecture and application service of the MEC.
On the basis of a service continuity scheme of a network domain of the fifth Generation (5Generation, 5G), a buffer window in time is brought to migration of application data and redirection of service by establishing an N9 channel between a User Plane Function (UPF) and a destination UPF, and it is ensured that the application of the source edge node V2X can continue to provide service for a period of time for a vehicle that is driven away.
However, in the prior art, due to the MEC service area switching of the mobile entity under the MEC application service, no corresponding implementation scheme exists for the UE application data migration across the MECs, and efficient and high-reliability application data migration of a network cannot be guaranteed.
Disclosure of Invention
The embodiment of the invention provides a method and a device for migrating mobile edge computing application data and a core network node, which aim to solve the problem that efficient and highly reliable application data migration cannot be carried out when UE (user equipment) spans different MEC (media independent center) application services in the moving process.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a mobile edge computing application data migration method applied to a mobile edge computing MEC apparatus, including:
receiving vehicle position change information sent by a core network node;
and migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information.
Optionally, the migrating the application data of the vehicle from the source MEC node to the target MEC node includes:
an MEC orchestrator in the MEC device sends an application data migration task of a vehicle to a source MEC node in the MEC device;
and the MEC application data synchronization server of the source MEC node acquires the application data of the vehicle according to the application data migration task and synchronizes the application data of the vehicle to the target MEC node.
Further, the MEC orchestrator communicates with the source MEC node through an MEC platform manager in an MEC device.
Further, the acquiring application data of a vehicle and synchronizing the application data of the vehicle to a target MEC node includes:
the method comprises the steps that a proxy module of the MEC application data synchronization server obtains application data of a vehicle;
the message queue agent module generates a queue according to the application data;
and the transmission module sends the queue in the message queue agent module to an MEC application data synchronization server of the target MEC node in the form of queue message.
Specifically, the agent module of the MEC application data synchronization server acquires application data of the vehicle, including at least one of:
querying an Application Program Interface (API) of the MEC application related data from the MEC application data open server, and acquiring the application data of the vehicle from the MEC application by using the API;
and acquiring the application data of the vehicle from the MEC application data open server.
Further, after the acquiring application data of the vehicle and synchronizing the application data of the vehicle to the target MEC node, the method further includes:
the target MEC node sends a migration complete message to the MEC orchestrator of the MEC device.
Optionally, after the migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle location change information, the method further includes:
and sending the target address of the application data of the vehicle to the core network node.
The embodiment of the invention also provides a mobile edge computing application data migration method, which is applied to a core network node and comprises the following steps:
and sending the vehicle position change information to the moving edge calculation MEC device.
Optionally, before the sending the vehicle position change information to the moving edge calculating MEC device, the method further includes:
when the position of the vehicle is determined to be changed, an N9 forwarding channel from a source user plane function UPF to a target UPF is established for the vehicle through a session management function SMF, and a forwarding rule of the target UPF is configured, so that the vehicle can interact with a source MEC node in an MEC device.
Optionally, after the sending the vehicle position change information to the moving edge calculating MEC apparatus, the method further includes:
receiving a target address of application data of a vehicle sent by an MEC device;
and updating the forwarding rule of the user plane function UPF according to the target address.
An embodiment of the present invention further provides a mobile edge computing MEC apparatus, including:
the first receiving module is used for receiving vehicle position change information sent by a core network node;
and the migration module is used for migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information.
Optionally, the migration module includes:
a sending unit, configured to send an application data migration task of a vehicle to a source MEC node in an MEC device by an MEC orchestrator in the MEC device;
and the MEC application data synchronization server of the source MEC node is used for acquiring the application data of the vehicle according to the application data migration task and synchronizing the application data of the vehicle to the target MEC node.
Further, the MEC orchestrator communicates with the source MEC node through an MEC platform manager in an MEC device.
Further, the source MEC node MEC application data synchronization server includes:
the agent module is used for acquiring the application data of the vehicle by the agent module of the MEC application data synchronization server;
the message queue agent module is used for generating a queue according to the application data;
and the transmission module is used for transmitting the queue in the message queue agent module to an MEC application data synchronization server of the target MEC node in the form of queue message.
Specifically, the agent module is configured to implement at least one of:
querying an Application Program Interface (API) of the MEC application related data from the MEC application data open server, and acquiring the application data of the vehicle from the MEC application by using the API;
and acquiring the application data of the vehicle from the MEC application data open server.
Further, after the application data synchronization server of the source MEC node obtains the application data of the vehicle according to the application data migration task and synchronizes the application data of the vehicle to the target MEC node, the method further includes:
and the feedback module is used for sending a migration completion message to the MEC orchestrator of the MEC device by the target MEC node.
Optionally, after the migrating module migrates the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle location change information, the method further includes:
and the first sending module is used for sending the target address of the application data of the vehicle to the core network node.
The embodiment of the invention also provides a mobile edge computing MEC device, which comprises a transceiver and a processor;
the transceiver is used for receiving vehicle position change information sent by the core network node;
and the processor is used for migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information.
The embodiment of the invention also provides a mobile edge computing MEC device, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the mobile edge computing application data migration method is realized.
An embodiment of the present invention further provides a core network node, including:
and the second sending module is used for sending the vehicle position change information to the mobile edge computing MEC device.
Optionally, before the second sending module sends the vehicle position change information to the mobile edge computing MEC apparatus, the method further includes:
and the configuration module is used for establishing an N9 forwarding channel from a source user plane function UPF to a target UPF for the vehicle through the session management function SMF when the position of the vehicle is determined to be changed, and configuring a forwarding rule of the target UPF so that the vehicle can interact with a source MEC node in the MEC device.
Optionally, after the second sending module sends the vehicle position change information to the mobile edge computing MEC apparatus, the method further includes:
the second receiving module is used for receiving the target address of the application data of the vehicle, which is sent by the MEC device;
and the updating module is used for updating the forwarding rule of the user plane function UPF according to the target address.
The embodiment of the invention also provides a core network node, which comprises a transceiver and a processor;
the transceiver is configured to send vehicle position change information to the moving edge computing MEC apparatus.
The embodiment of the invention also provides a core network node, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor, wherein the processor realizes the mobile edge computing application data migration method when executing the program.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the above-mentioned mobile edge computing application data migration method.
The invention has the beneficial effects that:
according to the scheme, the application data of the vehicle is migrated from the source MEC node to the target MEC node according to the vehicle position change information, so that the problem that the UE cannot perform efficient and highly reliable application data migration when spanning different MEC application services in the moving process is solved, and the accuracy and the efficiency of the application data migration are guaranteed by the mode.
Drawings
FIG. 1 is a flow chart of a mobile edge computing application data migration method according to an embodiment of the present invention;
FIG. 2 shows a MEC application data migration framework diagram;
FIG. 3 is a schematic diagram of the main modules of the MASS;
FIG. 4 is a diagram illustrating MASS-based application data migration sub-flow timing;
FIG. 5 is a diagram illustrating the relationship between MAOS and other modules in the MEC application data migration framework;
fig. 6 is a schematic diagram illustrating the MEC application data migration and application redirection procedures based on 5G service continuity and 5G network capability opening;
FIG. 7 shows a main flow diagram of MEC application data migration;
FIG. 8 is a second flowchart illustrating a data migration method for a moving edge computing application according to an embodiment of the present invention;
fig. 9 shows a block schematic of an MEC apparatus according to an embodiment of the invention;
fig. 10 is a block diagram of a core network node according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The invention provides a method and a device for migrating mobile edge computing application data and a core network node, aiming at the problem that the UE cannot perform efficient and highly reliable application data migration when spanning different MEC application services in the moving process.
As shown in fig. 1, the mobile edge computing application data migration method according to the embodiment of the present invention is applied to a Mobile Edge Computing (MEC) apparatus, and includes:
it should be noted that the vehicle location change information is mainly obtained by a core network node according to change statistics of an access network to which the vehicle is accessed, and the core network node mentioned in the embodiment of the present invention mainly refers to a 5G core network node.
It should be noted that the position of the vehicle is represented by an in-vehicle terminal device in the vehicle.
it should be noted that, when the vehicle does not move, it acquires the application data from the source MEC node, and when the vehicle moves to a new access network node, the node providing the application data for the vehicle becomes a target MEC node (or called a destination MEC node).
It should be noted that, the MEC device mentioned in the embodiment of the present invention is a functional entity of an application layer, and the MEC device mainly includes the following functional entities: an MEC Orchestrator (MEO) is used as a communication interface, an MEC Platform Manager (MEPM) implements management of MEC nodes (MEN), and MEC nodes (MEN), it needs to be noted that the MEC Orchestrator implements communication with the MEC nodes through the MEC Platform Manager, and the MEC Orchestrator implements information interaction with core network nodes through the opening of the core network Node capability.
Wherein, including again in the MEC node: MEC Platform (MEC Platform, MEP), MEC Application (MEA), further, the MEC Platform comprises: an MEC Application data Synchronization service (MASS, also referred to as MEC Application data Synchronization server in the embodiment of the present invention) and an MEC Application data Open service (MAOS, also referred to as MEC Application data Open server in the embodiment of the present invention) are provided, and specifically, an MEC Application data migration framework is shown in fig. 2.
It should be noted that the MASS is an underlying MEC Services provided by the MEP, and the MASS is mainly responsible for providing application data migration and synchronization Services across the MEP for the distributed MEA. MASS mainly adopts a P2P (Point2Point) architecture, utilizes an MP3 channel among MEPs to provide high-speed data transmission, and realizes high-availability and high-real-time data migration synchronization service by virtue of a MASS agent module, a MASS MQ module, a MASS transmission module and a MASS task management module. It should be noted that the MASS considers the priority policy, provides differentiated migration and synchronization services, and can improve the economy while ensuring the service quality.
Further, the MASS mainly constitutes a module, as shown in fig. 3, which mainly includes:
a11 MASS task management module
The main responsibilities are as follows:
the task receives and receives a data migration task sent by the MAPM, and triggers the MASS agent module to execute data acquisition;
the method comprises the following steps of monitoring a task, monitoring the state of a bidirectional migration task based on an Acknowledgement (ACK) message mechanism, providing task rollback, and ensuring reliability and consistency;
task synchronization, and data migration task state synchronization between a source MASS and a destination MASS;
and the task closing module and the target MASS agent module finish data updating, and the source MASS task manager feeds back the data updating to the MEPM and closes the task.
A12, MASS agent module
It mainly comprises:
a121, MEA Proxy (Proxy):
acquisition (Get) process: querying an MEA related data query API from the MAOS service, and acquiring UE application data from the MEA by using the API; or get data directly from the MAOS service;
update (Update) procedure: and inquiring MEA related data updating API from the MAOS service, and updating UE application data to the MEA by using the API or directly updating the data to the MAOS service.
A122, message queue Proxy (MQ Proxy):
as a producer, producing data to a MASS message queue according to the data acquired by the MEAPROXY Get process;
as a consumer, consuming data from the MASS message queue and calling a MEAPROXY Update process;
it should also be noted that, the MQ Proxy will perform the production and consumption of the message according to the task priority policy.
A13, MASS message queue Module
Priority-based multi-message queues: such as a high priority message queue (high _ priority _ mq), a medium priority message queue (medium _ priority _ mq), and a low priority message queue (low _ priority _ mq), to provide a high quality differentiation service;
defining message direction based on Topic: through the Topic ═ { send, receive }, distinguish the data sent out by MASS and data sent out by other MASS fast;
it should be noted that the MASS message queue module is a distributed MQ architecture with high availability and high real-time.
A14 and MASS transmission module
And (3) a sending process: as a consumer, consuming related message data needing to be sent from the MASS message queue and sending the message data to a target MASS;
the receiving process comprises the following steps: and as a producer, receiving message data sent by other MASS, and producing the data to the MASS message queue.
It should be noted that, based on the above-mentioned MASS composition structure, the application data migration sub-flow sequence based on MASS is shown in fig. 4:
s401, a source MASS (S-MASS) task management module, a source MASS agent module and a source MASS MQ module receive a data migration task sent by the MAPM;
it should be noted that the target MASS of the source MEC platform and the target MEC platform monitor the entire life cycle of the data migration task based on the ACK message mechanism.
S402, triggering execution data acquisition by a source MASS task management module;
s403, the source MASS agent module queries MEA related data query API from the MAOS;
s404, the source MASS agent module acquires the application data (also called UE application data) of the vehicle from the source MEA by utilizing the API;
s405, the source MEA feeds back the application data of the vehicle to the source MASS agent module;
s406, the source MASS agent module generates migration data to be sent to the source MASS MQ module;
s407, the source MASS MQ module consumes the related migration data which needs to be sent from the MASS message queue;
s408, the source MASS transmission module sends the migration data to a target MASS;
it should be noted that, the target MASS receives the data sent by the source MASS, and migrates and updates the data to the target application through the corresponding transmission module, MQ module and proxy module.
S409, the task management module of the target MASS feeds back the migration task completion state ACK message to the source MASS agent task management module;
it should be further noted that, the target MASS agent module completes data update, and the source MASS task management module feeds back to the MEPM and closes the task.
Further, the main functions of MAOS are described as follows:
the MAOS is also an MEC Services provided by the MEP, and the MAOS is mainly responsible for providing the application data open access service for the MEA, and can provide the MEC Services, the MEA and the like on the MEP to access the application data based on different authorities.
The MAOS expects the MEA itself to agree and support the unified management of the application data by the MAOS, and the MAOS stores the application data uniformly by the distributed Virtual Infrastructure (VI) and opens data read and write operations to other MEC Services and the MEA based on the access authority. For example, the MASS may query and update the MAOS for migration class data of applications of the MEA that support the application data synchronization service, specifically, the relationship of the MAOS to other modules in the MEC application data migration framework, as shown in FIG. 5.
The application migration data types mainly comprise UE access authentication information, UE application session state information, UE related application historical data and the like.
As can be seen from the above description, the specific implementation manner of step 12 is:
s11, the MEC orchestrator in the MEC device sends the application data migration task of the vehicle to the source MEC node in the MEC device;
and S12, the MEC application data synchronization server of the source MEC node acquires the application data of the vehicle according to the application data migration task and synchronizes the application data of the vehicle to the target MEC node.
It is noted that the MEC orchestrator communicates with the source MEC node through an MEC platform manager in the MEC device.
Further, the specific implementation manner of S12 is:
the method comprises the steps that a proxy module of the MEC application data synchronization server obtains application data of a vehicle;
the message queue agent module generates a queue according to the application data;
and the transmission module sends the queue in the message queue agent module to an MEC application data synchronization server of the target MEC node in the form of queue message.
Further, the agent module of the MEC application data synchronization server acquires application data of the vehicle, including at least one of:
querying an Application Program Interface (API) of the MEC application related data from the MEC application data open server, and acquiring the application data of the vehicle from the MEC application by using the API;
and acquiring the application data of the vehicle from the MEC application data open server.
Further, after S12, the method further includes:
the target MEC node sends a migration complete message to the MEC orchestrator of the MEC device.
It should be further noted that, after step 12, the MEC apparatus further needs to send a destination address of the application data of the vehicle to the core network node, where the destination address mainly refers to identification information of a destination MEC node where the application data is located; and the core network node updates the forwarding rule of the User Plane Function (UPF) according to the target address. Further, before the core network node sends the vehicle position change information to the mobile edge computing MEC device, it needs to determine that the position of the vehicle changes, when the position of the vehicle changes, an N9 forwarding channel from a source User Plane Function (UPF) to a target UPF is established for the vehicle through a Session Management Function (SMF), and a forwarding rule of the target UPF is configured, so that the vehicle can interact with a source MEC node in the MEC device.
The MEC application data migration and application redirection process opened based on 5G service continuity and 5G network capability is shown in fig. 6, where a dotted arrow in fig. 6 represents a path maintained by an application service before migration, a black solid arrow represents a communication flow during migration, and a dotted arrow represents an application service change flow after migration.
Specifically, the main flow of the MEC application data migration is summarized as follows, and mainly includes three stages:
stage one, before migration (mainly used for realizing service continuity guarantee)
1.1, a vehicle moves from a source access network node (S-NG-RAN) to a target access network node (T-NG-RAN);
1.2, an access and mobility management function (AMF) entity of a core network node (5GC) discovers the mobility change of a vehicle, establishes an N9 forwarding channel from a source user plane function (S-UPF) to a target user plane function (T-UPF) for the vehicle through a Session Management Function (SMF) entity, and configures a T-UPF forwarding rule;
1.3, the vehicle can continue to interact with the source MEA (S-MEA), and the link is T-NG-RAN, T-UPF, S-UPF, source PDU session anchor point (S-PSA) and S-MEA.
Stage two, in migration (application data migration)
2.1, 5GC (AMF informs MEO of vehicle position change through a strategy control Function (PCF) and a Network opening Function (NEF));
2.2, triggering a vehicle S-MEA application data migration task by the MEO;
and 2.3, the source MEC platform (S-MEP) acquires data to be migrated of the S-MEA, and sends the data to the target MEA (T-MEA) of the target MEC platform (S-MEP) to complete the migration.
Stage three, after migration (application service redirection)
3.1, the MEO sends a new T-MEA routing rule of the vehicle to a 5GC (NEF, PCF and SMF), and updates a UPF forwarding rule;
3.2, the vehicle switches to T-MEA interaction.
Specifically, as shown in fig. 7, the following describes in detail the main flow of the MEC application data migration for the UE moving under the access network node.
The UE moves to the T-NG-RAN, an N9 channel is established, and the S-MEA continues to provide service to the UE through the N9 channel before the migration of the application data is completed.
S701, 5GC sends UE location change to MEO through network capability opening (AMF, PCF, NEF), such as (S-NG-RAN, T-NG-RAN);
s702, the MEO obtains migration information (S-MEP, S-MEA, T-MEP and T-MEA) of the UE and triggers a UE application data migration task according to the UE position change and system level topology;
it should be noted that the MEO determines the target environment T-MEN of the UE according to the UE location change and the system level MEN topology; the MEO inquires whether the T-MEA has the T-MEA application instance running, and the MEPM feeds back the T-MEA application instance state (in normal running, no instance running and the like); and the MEO determines whether to trigger data migration or application instantiation according to the feedback result. It should be noted that here, application instantiation is triggered: inquiring the deployment resource requirement, deployment mirror image position, deployment script and the like of the T-MEA application according to the MEO application deployment management function, wherein the MEO allocates deployment resources (calculation, storage and network) for the T-MEA through the VIM, and copies the T-MEA deployment mirror image through the VIM; the MEO, the MEPM, the VIM and the T-MEA execute the T-MEA deployment script to finish application instantiation, the MEO informs the MEPM of finishing the instantiation of the T-MEA, the MEPM monitors the full life cycle state of the T-MEA, the MEO, the MEPM, the VIM and the T-MEA finish the instantiation process of the T-MEA, and the MEO triggers the migration of S-MEA application data.
S703, the MEO sends a UE application data migration task to the MEPM;
s704, the MEPM forwards the UE application data migration task to the S-MEP;
s705, the S-MEP inquires the application migration data of the UE on the S-MEA through MASS and MAOS services;
s706, the S-MEA returns data to be migrated, including UE access authentication information, UE application session state information, UE related application historical data and the like;
s707, through MASS synchronous service, the S-MEP applies migration data to the T-MEP synchronous UE;
s708, the T-MEP updates the application data of the UE on the T-MEA through MASS and MAOS services;
s709, completing the UE application data migration task, and gradually feeding back information to the T-MEP, the S-MEP, the MEPM and the MEO;
s710, the MEO sends a new routing rule of the UE to the 5 GC;
s711 and 5GC (NEF, PCF and SMF) issue a new shunting strategy to the UPF and take effect;
and S712, the T-MEA provides service for the UE.
It should be noted that, in the embodiment of the present invention, technically, a 5G network-based MEC application data migration method is proposed for the fusion of a 5G technology and an MEC technology, and in view of the continuity problem of a 5G MEC service and the opening of 5G network capability to a MEC top-level architecture, a P2P-based efficient application data migration framework, a MEC application data migration main flow, and a MASS sub-flow are proposed for the mobility of a UE; from the commercial aspect, facing to the group 5G + AICDE strategy, the proposal method has a relatively definite application value in the fields of 5G core network, MEC edge computing architecture, C-V2X Internet of vehicles application and the like, is a technical premise of high real-time performance and high safety guarantee of auxiliary driving and automatic driving based on the 5G MEC architecture in the future, and is output through a standardization organization in advance.
As shown in fig. 8, the method for migrating mobile edge computing application data according to the embodiment of the present invention is applied to a core network node, and includes:
Optionally, before the sending the vehicle position change information to the moving edge calculating MEC device, the method further includes:
when the position of the vehicle is determined to be changed, an N9 forwarding channel from a source user plane function UPF to a target UPF is established for the vehicle through a session management function SMF, and a forwarding rule of the target UPF is configured, so that the vehicle can interact with a source MEC node in an MEC device.
Optionally, after the sending the vehicle position change information to the moving edge calculating MEC apparatus, the method further includes:
receiving a target address of application data of a vehicle sent by an MEC device;
and updating the forwarding rule of the user plane function UPF according to the target address.
It should be noted that all the descriptions regarding the core network node in the above embodiments are applicable to the embodiment of the data migration method for mobile edge computing application, and the same technical effects can be achieved.
As shown in fig. 9, an MEC apparatus 90 according to an embodiment of the present invention includes:
the first receiving module 91 is configured to receive vehicle position change information sent by a core network node;
and the migration module 92 is configured to migrate the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information.
Optionally, the migration module 92 includes:
a sending unit, configured to send an application data migration task of a vehicle to a source MEC node in an MEC device by an MEC orchestrator in the MEC device;
and the MEC application data synchronization server of the source MEC node is used for acquiring the application data of the vehicle according to the application data migration task and synchronizing the application data of the vehicle to the target MEC node.
Further, the MEC orchestrator communicates with the source MEC node through an MEC platform manager in an MEC device.
Further, the source MEC node MEC application data synchronization server includes:
the agent module is used for acquiring the application data of the vehicle by the agent module of the MEC application data synchronization server;
the message queue agent module is used for generating a queue according to the application data;
and the transmission module is used for transmitting the queue in the message queue agent module to an MEC application data synchronization server of the target MEC node in the form of queue message.
Specifically, the agent module is configured to implement at least one of:
querying an Application Program Interface (API) of the MEC application related data from the MEC application data open server, and acquiring the application data of the vehicle from the MEC application by using the API;
and acquiring the application data of the vehicle from the MEC application data open server.
Further, after the application data synchronization server of the source MEC node obtains the application data of the vehicle according to the application data migration task and synchronizes the application data of the vehicle to the target MEC node, the method further includes:
and the feedback module is used for sending a migration completion message to the MEC orchestrator of the MEC device by the target MEC node.
Optionally, after the migrating module 92 migrates the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle location change information, the method further includes:
and the first sending module is used for sending the target address of the application data of the vehicle to the core network node.
It should be noted that, the apparatus provided in the embodiment of the present invention is an apparatus capable of executing the above-mentioned moving edge computing application data migration method, and all implementation manners in the above-mentioned moving edge computing application data migration method embodiment are applicable to the apparatus and can achieve the same or similar beneficial effects.
The embodiment of the invention also provides a mobile edge computing MEC device, which comprises a transceiver and a processor;
the transceiver is used for receiving vehicle position change information sent by the core network node;
and the processor is used for migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information.
Optionally, the processor is configured to migrate the application data of the vehicle from the source MEC node to the target MEC node, and specifically includes:
an MEC orchestrator in the MEC device sends an application data migration task of a vehicle to a source MEC node in the MEC device;
and the MEC application data synchronization server of the source MEC node acquires the application data of the vehicle according to the application data migration task and synchronizes the application data of the vehicle to the target MEC node.
Further, the MEC orchestrator communicates with the source MEC node through an MEC platform manager in an MEC device.
Further, the acquiring application data of a vehicle and synchronizing the application data of the vehicle to a target MEC node includes:
the method comprises the steps that a proxy module of the MEC application data synchronization server obtains application data of a vehicle;
the message queue agent module generates a queue according to the application data;
and the transmission module sends the queue in the message queue agent module to an MEC application data synchronization server of the target MEC node in the form of queue message.
Specifically, the agent module of the MEC application data synchronization server acquires application data of the vehicle, including at least one of:
querying an Application Program Interface (API) of the MEC application related data from the MEC application data open server, and acquiring the application data of the vehicle from the MEC application by using the API;
and acquiring the application data of the vehicle from the MEC application data open server.
Further, after the acquiring application data of the vehicle and synchronizing the application data of the vehicle to the target MEC node, the method further includes:
the target MEC node sends a migration complete message to the MEC orchestrator of the MEC device.
Optionally, after the migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle location change information, the method further includes:
and sending the target address of the application data of the vehicle to the core network node.
An embodiment of the present invention further provides a mobile edge computing MEC apparatus, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor implements each process in the foregoing mobile edge computing application data migration method embodiment when executing the program, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process in the embodiment of the method for migrating mobile edge computing application data on an MEC device side, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
As shown in fig. 10, a core network node 100 according to an embodiment of the present invention includes:
a second sending module 101, configured to send vehicle position change information to the moving edge computing MEC apparatus.
Optionally, before the second sending module 101 sends the vehicle position change information to the mobile edge computing MEC apparatus, the method further includes:
and the configuration module is used for establishing an N9 forwarding channel from a source user plane function UPF to a target UPF for the vehicle through the session management function SMF when the position of the vehicle is determined to be changed, and configuring a forwarding rule of the target UPF so that the vehicle can interact with a source MEC node in the MEC device.
Optionally, after the second sending module 101 sends the vehicle position change information to the mobile edge computing MEC apparatus, the method further includes:
the second receiving module is used for receiving the target address of the application data of the vehicle, which is sent by the MEC device;
and the updating module is used for updating the forwarding rule of the user plane function UPF according to the target address.
It should be noted that the core network node provided in the embodiment of the present invention is a core network node capable of executing the mobile edge computing application data migration method, and all implementation manners in the embodiment of the mobile edge computing application data migration method are applicable to the core network node and can achieve the same or similar beneficial effects.
The embodiment of the invention also provides a core network node, which comprises a transceiver and a processor;
the transceiver is configured to send vehicle position change information to the moving edge computing MEC apparatus.
Optionally, before the sending of the vehicle position change information to the mobile edge calculating MEC device sends the vehicle position change information to the mobile edge calculating MEC device, the processor is further configured to:
when the position of the vehicle is determined to be changed, an N9 forwarding channel from a source user plane function UPF to a target UPF is established for the vehicle through a session management function SMF, and a forwarding rule of the target UPF is configured, so that the vehicle can interact with a source MEC node in an MEC device.
Optionally, after the sending of the vehicle location change information to the mobile edge computing MEC apparatus sends the vehicle location change information to the mobile edge computing MEC apparatus, the transceiver is further configured to receive a destination address of application data of the vehicle sent by the MEC apparatus;
and the processor is also used for updating the forwarding rule of the user plane function UPF according to the target address.
The embodiment of the present invention further provides a core network node, which includes a memory, a processor, and a computer program that is stored in the memory and can be run on the processor, where the processor implements each process in the foregoing mobile edge computing application data migration method embodiment when executing the program, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements each process in the embodiment of the method for migrating mobile edge computing application data applied to a core network node side, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-readable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block or blocks.
These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present invention have been described, 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 as defined in the following claims.
Claims (25)
1. A mobile edge computing application data migration method is applied to a mobile edge computing MEC device and is characterized by comprising the following steps:
receiving vehicle position change information sent by a core network node;
and migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information.
2. The mobile edge computing application data migration method of claim 1, wherein the migrating the application data of the vehicle from the source MEC node to the target MEC node comprises:
an MEC orchestrator in the MEC device sends an application data migration task of a vehicle to a source MEC node in the MEC device;
and the MEC application data synchronization server of the source MEC node acquires the application data of the vehicle according to the application data migration task and synchronizes the application data of the vehicle to the target MEC node.
3. The mobile edge computing application data migration method of claim 2, wherein the MEC orchestrator communicates with the source MEC node through an MEC platform manager in an MEC device.
4. The mobile edge computing application data migration method of claim 2, wherein the obtaining and synchronizing application data of a vehicle to a target MEC node comprises:
the method comprises the steps that a proxy module of the MEC application data synchronization server obtains application data of a vehicle;
the message queue agent module generates a queue according to the application data;
and the transmission module sends the queue in the message queue agent module to an MEC application data synchronization server of the target MEC node in the form of queue message.
5. The mobile edge computing application data migration method of claim 4, wherein the agent module of the MEC application data synchronization server obtains application data of a vehicle, comprising at least one of:
querying an Application Program Interface (API) of the MEC application related data from the MEC application data open server, and acquiring the application data of the vehicle from the MEC application by using the API;
and acquiring the application data of the vehicle from the MEC application data open server.
6. The mobile edge computing application data migration method of claim 2, wherein after the obtaining and synchronizing application data of a vehicle to a target MEC node, further comprising:
the target MEC node sends a migration complete message to the MEC orchestrator of the MEC device.
7. The method for migrating application data of mobile edge computing according to claim 1, wherein after the migrating application data of a vehicle from a source MEC node to a target MEC node according to the vehicle location change information, further comprising:
and sending the target address of the application data of the vehicle to the core network node.
8. A mobile edge computing application data migration method is applied to a core network node, and is characterized by comprising the following steps:
and sending the vehicle position change information to the moving edge calculation MEC device.
9. The mobile edge computing application data migration method according to claim 8, further comprising, before said sending vehicle location change information to the mobile edge computing MEC apparatus:
when the position of the vehicle is determined to be changed, an N9 forwarding channel from a source user plane function UPF to a target UPF is established for the vehicle through a session management function SMF, and a forwarding rule of the target UPF is configured, so that the vehicle can interact with a source MEC node in an MEC device.
10. The mobile edge computing application data migration method according to claim 8, further comprising, after said sending vehicle location change information to the mobile edge computing MEC apparatus:
receiving a target address of application data of a vehicle sent by an MEC device;
and updating the forwarding rule of the user plane function UPF according to the target address.
11. A mobile edge computing, MEC, apparatus comprising:
the first receiving module is used for receiving vehicle position change information sent by a core network node;
and the migration module is used for migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information.
12. The mobile edge computing MEC apparatus of claim 11 wherein the migration module comprises:
a sending unit, configured to send an application data migration task of a vehicle to a source MEC node in an MEC device by an MEC orchestrator in the MEC device;
and the MEC application data synchronization server of the source MEC node is used for acquiring the application data of the vehicle according to the application data migration task and synchronizing the application data of the vehicle to the target MEC node.
13. The mobile edge computing MEC apparatus of claim 12 wherein the MEC orchestrator communicates with the source MEC node through an MEC platform manager in a MEC apparatus.
14. The mobile edge computing MEC arrangement according to claim 12, wherein the source MEC node MEC applies a data synchronization server comprising:
the agent module is used for acquiring the application data of the vehicle by the agent module of the MEC application data synchronization server;
the message queue agent module is used for generating a queue according to the application data;
and the transmission module is used for transmitting the queue in the message queue agent module to an MEC application data synchronization server of the target MEC node in the form of queue message.
15. The mobile edge computing MEC apparatus of claim 14, wherein the proxy module is configured to implement at least one of:
querying an Application Program Interface (API) of the MEC application related data from the MEC application data open server, and acquiring the application data of the vehicle from the MEC application by using the API;
and acquiring the application data of the vehicle from the MEC application data open server.
16. The mobile edge computing MEC apparatus as claimed in claim 12, further comprising, after the application data synchronization server of the source MEC node MEC obtains application data of a vehicle according to an application data migration task and synchronizes the application data of the vehicle to a target MEC node:
and the feedback module is used for sending a migration completion message to the MEC orchestrator of the MEC device by the target MEC node.
17. The mobile edge computing MEC apparatus of claim 11 wherein after the migration module migrates the vehicle application data from the source MEC node to the target MEC node based on the vehicle location change information, further comprising:
and the first sending module is used for sending the target address of the application data of the vehicle to the core network node.
18. A mobile edge computing, MEC, apparatus comprising a transceiver and a processor;
the transceiver is used for receiving vehicle position change information sent by the core network node;
and the processor is used for migrating the application data of the vehicle from the source MEC node to the target MEC node according to the vehicle position change information.
19. A mobile edge computing MEC apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the mobile edge computing application data migration method according to any one of claims 1 to 7.
20. A core network node, comprising:
and the second sending module is used for sending the vehicle position change information to the mobile edge computing MEC device.
21. The core network node according to claim 20, wherein before the second sending module sends the vehicle location change information to the mobile edge computing MEC apparatus, further comprising:
and the configuration module is used for establishing an N9 forwarding channel from a source user plane function UPF to a target UPF for the vehicle through the session management function SMF when the position of the vehicle is determined to be changed, and configuring a forwarding rule of the target UPF so that the vehicle can interact with a source MEC node in the MEC device.
22. The core network node according to claim 20, further comprising, after the second sending module sends the vehicle location change information to the mobile edge computing MEC apparatus:
the second receiving module is used for receiving the target address of the application data of the vehicle, which is sent by the MEC device;
and the updating module is used for updating the forwarding rule of the user plane function UPF according to the target address.
23. A core network node comprising a transceiver and a processor;
the transceiver is configured to send vehicle position change information to the moving edge computing MEC apparatus.
24. A core network node comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the mobile edge computing application data migration method of any of claims 8-10.
25. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the mobile edge computing application data migration method according to any one of claims 1 to 10.
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