CN113473446A - User plane changing method, system and mobile edge computing network element - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
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Abstract
The disclosure discloses a user plane changing method, a user plane changing system and a mobile edge computing network element, and relates to the field of mobile communication. The method comprises the following steps: receiving a request which is sent by a control plane function network element and indicates whether a current user plane can be changed; and if the current user plane is determined to be allowed to be changed, sending a change approving response to the control plane function network element, and executing user plane change operation by the control plane function network element. According to the method and the device, on the basis of subscription service change, the network can inform the MEC before change and change in real time after obtaining the agreement of the MEC, so that third-party service application experience based on the MEC can be improved, and scenes such as change failure and the like which influence service experience are avoided.
Description
Technical Field
The present disclosure relates to the field of mobile communications, and in particular, to a method and a system for changing a user plane and a mobile edge computing network element.
Background
The capability openness is the necessary way for operators to realize the transformation of digital services in the digital economy age. Through capability opening, the operator opens network assets to business partners in the form of an API (Application Programming Interface). The operator can also aggregate various external capabilities, a novel industrial chain is built through flexible business mode aggregation application developers, OTT service providers and industry SI, a service ecological circle is constructed, the existing network assets can be activated, and the pipeline flow is enlarged. According to the definition of the current 3GPP standard, the MEC (Mobile Edge Computing) based AF (Application Function) can only subscribe to changes of Network services through NEF (Network Exposure Function), and has no deep/actual participation in the entire changes.
Disclosure of Invention
The technical problem to be solved by the present disclosure is to provide a user plane changing method, system and mobile edge computing network element, which can improve the third party service application experience.
According to an aspect of the present disclosure, a method for changing a user plane is provided, including: receiving a request which is sent by a control plane function network element and indicates whether a current user plane can be changed; and if the current user plane is determined to be allowed to be changed, sending a change approving response to the control plane function network element, and executing user plane change operation by the control plane function network element.
In some embodiments, it is determined whether the changed user plane function is available with the self link, and if so, it is determined that the current user plane is allowed to be changed.
In some embodiments, it is determined whether the service quality is satisfied after the user plane function migration of the current service is performed, and if so, it is determined that the current user plane is allowed to be changed.
In some embodiments, the backup and migration of data is prepared before sending the consent change response to the control plane function network element.
In some embodiments, the request includes the IP address and port of the changed user plane function.
According to another aspect of the present disclosure, there is also provided a mobile edge computing network element, including: a request receiving unit, configured to receive a request that whether a current user plane sent by a control plane function network element can be changed; a change judging unit configured to judge whether or not to allow a change of the current user plane; and the response sending unit is configured to send a change approval response to the control plane function network element and execute the user plane change operation by the control plane function network element if the current user plane is determined to be allowed to be changed.
In some embodiments, the change determining unit is configured to determine whether the changed user plane function is accessible to the self link, and if so, determine to allow the current user plane to be changed; and/or judging whether the service quality is met after the user plane function of the current service is migrated, and if so, determining that the current user plane is allowed to be changed.
According to another aspect of the present disclosure, there is also provided a mobile edge computing network element, including: a memory; and a processor coupled to the memory, the processor configured to perform the user plane changing method as described above based on instructions stored in the memory.
According to another aspect of the present disclosure, there is also provided a user plane changing system, including: the mobile edge computing MEC network element; and a control plane function network element configured to send a request to the MEC whether the current user plane can be changed, and in response to the MEC returning permission to change the current user plane, perform a user plane change operation.
According to another aspect of the present disclosure, a computer-readable storage medium is also proposed, on which computer program instructions are stored, which instructions, when executed by a processor, implement the user plane changing method described above.
In the embodiment of the disclosure, on the basis of subscription service change, the network informs the MEC before the change and changes in real time after obtaining the agreement of the MEC, so that the third-party service application experience based on the MEC can be improved, and the occurrence of scenes which influence the service experience, such as change failure and the like, is avoided.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
fig. 1 is a flow diagram of some embodiments of a user plane changing method of the present disclosure.
Fig. 2 is a flow chart illustrating further embodiments of a user plane changing method according to the present disclosure.
Fig. 3 is a flow chart illustrating further embodiments of a user plane changing method according to the present disclosure.
Fig. 4 is a schematic structural diagram of some embodiments of a mobile edge computing network element of the present disclosure.
Fig. 5 is a schematic structural diagram of another embodiment of a mobile edge computing network element according to the present disclosure.
Fig. 6 is a schematic structural diagram of some embodiments of a user plane changing system of the present disclosure.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a flow diagram of some embodiments of a user plane changing method of the present disclosure. This embodiment is performed by an MEC, wherein the MEC integrates AF.
In step 110, a request sent by the control plane function network element whether the current user plane can be changed is received. The control plane Function network element is, for example, SMF (Session Management Function).
In some embodiments, when the SMF decides to change the User Plane or delete the current UPF (User Plane Function), a request is sent to the AF/MEC whether the current User Plane can be changed. The request may carry a change reason, such as moving to a new location, and the IP address and port of the modified UPF.
In step 120, if it is determined that the current user plane is allowed to be changed, a change agreement response is sent to the control plane function network element, and the control plane function network element performs a user plane change operation.
For example, after the AF/MEC is ready for a user plane change of the user service, an approval change response is fed back to the SMF, and the SMF performs a user plane change operation, such as deleting a current UPF and adding a new UPF.
In the above embodiment, on the basis of the change of the subscription service, the network notifies the MEC before the change, and changes the MEC in real time after obtaining the agreement of the MEC, and compared with the case that the SMF changes the UPF in the related art, the network only notifies the AF after the change, that is, only performs a unilateral action, which can improve the experience of the third-party service application based on the MEC.
Fig. 2 is a flow chart illustrating further embodiments of a user plane changing method according to the present disclosure.
At step 210, the AF/MEC subscribes to user plane change notifications.
At step 220, the SMF decides to change the user plane or delete the current UPF.
At step 230, the SMF sends a request to the AF/MEC whether the current user plane can be changed, including the IP address and port of the changed UPF.
In step 240, if the AF/MEC determines that the current user plane is allowed to be changed and the backup and migration of the data are ready, the AF/MEC feeds back a response of agreeing to the change to the SMF.
In some embodiments, the AF/MEC determines whether the modified UPF is available with its own link, and if so, determines to allow the current user plane to be changed. Wherein, the AF/MEC can inquire whether the changed UPF is accessible with the self link through the internal data configuration.
In some embodiments, the AF/MEC determines whether the service quality is satisfied after the UPF migration of the current service, and if so, determines that the current user plane is allowed to be changed.
At step 250, the SMF performs a user plane change operation. For example, the current UPF is deleted and a new UPF is added.
At step 260, the SMF notifies AF/MEC that the user plane change was successful.
The signaling flow corresponding to fig. 2 is shown in fig. 3:
at step 310, the AF notification trigger is satisfied.
In step 320, the SMF sends Nsmf _ EventExposure _ Request signaling including a Request to transform UPF and related information to the AF/MEC through PCF (policy control function), NEF. Alternatively, as shown in step 321, the SMF sends Nsmf _ EventExposure _ Request signaling directly to the AF/MEC.
In step 330, AF/MEC sends Nsmf _ EventExposure _ Response signaling to SMF through NEF, including a Response to agree to and prepare for the change. Alternatively, the AF/MEC sends Nsmf _ EventExposure _ Response signaling directly to the SMF, as shown in step 331.
At step 340, the SMF performs UPF add, migrate, delete operations.
In step 350, the SMF returns an Nsmf _ EventExposure _ Notify signaling to the AF/MEC.
In the above embodiment, on the basis of the subscription service change, the network should inform the AF before the change, and the change is implemented after obtaining the AF approval. The signaling level interaction does not bring great time delay, but the third party experience is improved, so that the third party knows why the change is needed, meanwhile, preparation is made before the change, and the situation that the change fails and the like affect the service experience is avoided. In addition, from the signaling point of view, the interaction between the SMF and the AF does not bring extra delay, and is completely within the acceptable service range.
In one specific application, for example, a video application deploys MEC nodes only in the sky river sports center, the cambodia center, the knowledge city. When a user goes from a sky river to a full-bodied road through the UPF of the scientific city, the AMF considers that the UPF of the body and the sports center should be deleted and changed into the UPF of the scientific city, but actually the video is applied to the scientific city without an MEC node, so that the SMF executes the UPF deletion of the sky river sports center under the condition that the SMF is not communicated and interacted with the Tencent video/AF, and the situation that the user service cannot be used is caused when the SMF is changed into the UPF of the scientific city. In the application, the SMF is provided to request the approval of the AF using the UPF before the UPF is determined to be changed, and the AF approves the change, so that the AF is prepared for the change, the scene of failure change is avoided, the AF experience is greatly improved, and the AF actually participates in the UPF change instead of being used as a notified party of the change.
Fig. 4 is a schematic structural diagram of some embodiments of a mobile edge computing network element of the present disclosure. The network element comprises: a request receiving unit 410, a change judging unit 420, and a response transmitting unit 430.
The request receiving unit 410 is configured to receive a request sent by the control plane function network element whether the current user plane can be changed. The control plane functional network element is, for example, SMF.
In some embodiments, when the SMF decides to change the user plane or delete the current UPF, a request is sent to the AF/MEC whether the current user plane can be changed. The request may carry the change reason and the IP address and port of the modified UPF.
The change judging unit 420 is configured to judge whether or not to allow the current user plane to be changed.
In some embodiments, the AF/MEC determines whether the modified UPF is available with its own link, and if so, determines to allow the current user plane to be changed. Wherein, the AF/MEC can inquire whether the changed UPF is accessible with the self link through the internal data configuration.
In some embodiments, the AF/MEC determines whether the service quality is satisfied after the UPF migration of the current service, and if so, determines that the current user plane is allowed to be changed.
The response sending unit 430 is configured to send a consent change response to the control plane function network element, if it is determined that the current user plane is allowed to be changed, and the control plane function network element performs the user plane change operation.
For example, after the AF/MEC prepares for a user plane change of a user service, an agreement change response is fed back to the SMF, and the SMF performs the user plane change, deletes the current UPF, and adds a new UPF operation.
In the embodiment, on the basis of the change of the subscription service, the network informs the MEC before the change and changes the MEC in real time after obtaining the agreement of the MEC, so that the third-party business application experience based on the MEC can be improved.
Fig. 5 is a schematic structural diagram of another embodiment of a mobile edge computing network element according to the present disclosure. The network element comprises a memory 510 and a processor 520. Wherein: the memory 510 may be a magnetic disk, flash memory, or any other non-volatile storage medium. The memory is used to store instructions in the embodiments corresponding to fig. 1-3. Processor 520 is coupled to memory 510 and may be implemented as one or more integrated circuits, such as a microprocessor or microcontroller. The processor 520 is configured to execute instructions stored in memory.
In some embodiments, processor 520 is coupled to memory 510 by a BUS BUS 530. The network element 500 may also be coupled to an external storage system 550 via a storage interface 540 for invoking external data, and may also be coupled to a network or another computer system (not shown) via a network interface 560. And will not be described in detail herein.
In the embodiment, the data instruction is stored in the memory, and the instruction is processed by the processor, so that the third-party service application experience based on the MEC is improved, and the occurrence of service experience scenes influenced by failure of user plane change and the like is avoided.
Fig. 6 is a schematic structural diagram of some embodiments of a user plane changing system of the present disclosure. The system comprises an MEC 610 and a control plane functional network element 620, wherein the control plane functional network element 620 is, for example, an SMF 620.
In the system, when the SMF changes the user plane, the MEC is informed, and the UPF is changed after the MEC agrees, so that the service experience scene is influenced by failure of user plane change and the like.
In other embodiments, a computer-readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the steps of the method in the embodiments corresponding to fig. 1-3. As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, apparatus, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. 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 diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory 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 memory 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.
Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (10)
1. A user plane changing method, comprising:
receiving a request which is sent by a control plane function network element and indicates whether a current user plane can be changed;
and if the current user plane is determined to be allowed to be changed, sending a change agreement response to the control plane function network element, and executing user plane change operation by the control plane function network element.
2. The user plane changing method of claim 1, further comprising:
and judging whether the changed user plane function is communicated with the link of the user plane function, and if so, determining that the current user plane is allowed to be changed.
3. The user plane changing method of claim 1, further comprising:
and judging whether the service quality is met after the user plane function of the current service is migrated, and if so, determining that the current user plane is allowed to be changed.
4. The user plane changing method of claim 1, further comprising:
and before sending a change approving response to the control plane function network element, making backup and migration preparation of data.
5. The user plane changing method according to claim 2 to 4,
the request includes the IP address and port of the changed user plane function.
6. A mobile edge computing network element, comprising:
a request receiving unit, configured to receive a request that whether a current user plane sent by a control plane function network element can be changed;
a change judging unit configured to judge whether or not to allow a change of the current user plane;
a response sending unit, configured to send a change approval response to the control plane function network element if it is determined that the current user plane is allowed to be changed, and execute a user plane change operation by the control plane function network element.
7. The mobile edge computing network element of claim 6,
the change judging unit is configured to judge whether the changed user plane function is communicated with the link of the change judging unit, and if the changed user plane function is communicated with the link of the change judging unit, the change judging unit determines to allow the current user plane to be changed; and/or judging whether the service quality is met after the user plane function of the current service is migrated, and if so, determining that the current user plane is allowed to be changed.
8. A mobile edge computing network element, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the user plane changing method of any of claims 1 to 5 based on instructions stored in the memory.
9. A user plane change system comprising:
the mobile edge computing, MEC, network element of any one of claims 6 to 8; and
and the control plane function network element is configured to send a request whether the current user plane can be changed to the MEC, and execute a user plane change operation in response to the MEC returning permission to change the current user plane.
10. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the user plane changing method of any of claims 1 to 5.
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