CN109995844A - A kind of implementation method, device and the network functional entity of control plane resource migration - Google Patents

Abstract

The invention discloses implementation method, device and the network functional entities of a kind of control plane resource migration, wherein the described method includes: network function repository functional entity NRF determines the user's control face resource of migration first network functional entity NF；2nd NF of the NRF selection and the first NF same type；The NRF sends user's control face migration request to the 2nd NF, and user's control face migration request carries the address information of the first NF and the identification information of user to be migrated.In embodiments of the present invention, the lossless migration that user's control face resource is triggered by adjacent NF, can promote the resource utilization of network, while also ensuring the reliability of customer service, the user experience is improved with real-time optimization Internet resources.

Description

A kind of implementation method, device and the network functional entity of control plane resource migration

Technical field

This application involves mobile communication field, espespecially a kind of implementation method of control plane resource migration, device and network function It can entity.

Background technique

Fig. 1 is the general frame schematic diagram of 5G (the 5th generation communication system), as shown in Figure 1,5G framework specifically includes that AMF (Access Management Function, access management function entity), SMF (Session Management Function, conversation management functional entity), UPF (User Plane Function, user-plane function entity), UDM (Unified Data Management, uniform data management entity), PCF (Policy Control Function, strategy control Functional entity processed), NRF (Network Function Repository Function, network function repository functional entity) Deng.

Wherein, the connection in user face is that UE (User Equipment, user equipment) arrives RAN (Radio Access Network, wireless access network) UPF is arrived, the connection of control plane is that UE to RAN arrives AMF to SMF, and SMF is selected by AMF, control plane It is separation architecture with medium surface, UPF is selected and managed by SMF.

Fig. 2 is that NF (Network Function, network functional entity) finds flow diagram, and NF server infuses to NRF Volume can carry location information, slice information and other service parameters when NF finder needs to select others NF service, to NRF initiates Discovery (discovery) request, NRF according to the parameter of carrying, the information of UDM subscription, current strategy and load, And other relevant informations, select qualified NF returning response message to finder, finder initiates phase to the NF chosen Close operation flow.

Fig. 3 is request PDU (Protocol Data Unit, protocol Data Unit) the session establishment process signal that UE is initiated Figure, during PDU session establishment, AMF selects SMF, then initiates session establishment to the SMF chosen, and SMF selects UDM, Xiang Xuan In UDM obtain user signing contract information, SMF selects PCF, the PCF of Xiang Xuanzhong to initiate request subscriber policy and control information. SMF selects UPF, initiates session establishment request to UPF, establishes user face channel.

Wherein, AMF selects SMF, SMF selection UDM and SMF to select PCF, and there are two types of the modes of selection: being locally configured and NRF It was found that selection, the usage scenario that selection is locally configured compare limitation, request selecting is found to NRF application, can refer to retouching in Fig. 2 It states.

Above-mentioned NF selection is selected during session establishment, but for having built up session connection NF cannot achieve the migration of user's control face resource.

Summary of the invention

The embodiment of the invention provides implementation method, device and the network functional entity of a kind of control plane resource migration, with Realize user's control face resource dynamic migration.

The embodiment of the invention provides a kind of implementation methods of control plane resource migration, comprising:

Network function repository functional entity NRF determines the user's control face resource of migration first network functional entity NF；

2nd NF of the NRF selection and the first NF same type；

The NRF sends user's control face migration request to the 2nd NF, and user's control face migration request carries The address information of first NF and the identification information of user to be migrated.

The embodiment of the invention also provides a kind of implementation methods of control plane resource migration, comprising:

Third network functional entity NF determines the user's control face resource of the first NF of migration, passes through network function repository function 2nd NF of energy entity NRF selection and the first NF same type；Wherein, the 3rd NF is the adjoining NF of the first NF；

3rd NF sends user's control face migration request to the 2nd NF, and user's control face migration request is taken The identification information of address information and user to be migrated with the first NF.

The embodiment of the invention also provides a kind of implementation methods of control plane resource migration, comprising:

Second network functional entity NF receives user's control face migration request, and user's control face migration request carries the The identification information of the address information of one NF and user to be migrated；

2nd NF obtains the control plane resource of the user to be migrated according to the identification information of the user to be migrated Information；

2nd NF notifies the adjoining NF of the first NF, by of user-association to be migrated described in the adjacent NF The address information of one NF is updated to the address information of the 2nd NF.

The embodiment of the invention also provides a kind of realization devices of control plane resource migration, are applied to network function repository Functional entity NRF, comprising:

First determining module, for determining the user's control face resource of migration first network functional entity NF；

Selecting module, for selecting and the 2nd NF of the first NF same type；

First sending module, for sending user's control face migration request to the 2nd NF, the user's control face is moved It moves request and carries the address information of the first NF and the identification information of user to be migrated.

The embodiment of the invention also provides a kind of network function repository functional entitys, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

Determine the user's control face resource of the first NF of migration；

2nd NF of selection and the first NF same type；

User's control face migration request is sent to the 2nd NF, user's control face migration request carries described first The identification information of the address information of NF and user to be migrated.

The embodiment of the invention also provides a kind of realization devices of control plane resource migration, are applied to the 3rd NF, comprising:

Second determining module passes through network function repository function for determining the user's control face resource of the first NF of migration 2nd NF of energy entity NRF selection and the first NF same type；Wherein, the 3rd NF is the adjoining NF of the first NF；

Second sending module, for sending user's control face migration request to the 2nd NF, the user's control face is moved It moves request and carries the address information of the first NF and the identification information of user to be migrated.

The embodiment of the invention also provides a kind of network functional entities, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

The user's control face resource for determining the first NF of migration passes through network function repository functional entity NRF selection and institute State the 2nd NF of the first NF same type；

User's control face migration request is sent to the 2nd NF, user's control face migration request carries described first The identification information of the address information of NF and user to be migrated.

The embodiment of the invention also provides a kind of realization devices of control plane resource migration, are applied to the 2nd NF, comprising:

Third receiving module, for receiving user's control face migration request, user's control face migration request carries the The identification information of the address information of one NF and user to be migrated；

Module is obtained, the control plane for obtaining the user to be migrated according to the identification information of the user to be migrated provides Source information；

Notification module, for notifying the adjoining NF of the first NF, by user-association to be migrated described in the adjacent NF The address information of the first NF be updated to the address information of the 2nd NF.

The embodiment of the invention also provides a kind of network functional entities, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

Receive user's control face migration request, user's control face migration request carry the first NF address information and to The identification information of migrated users；

The control plane resource information of the user to be migrated is obtained according to the identification information of the user to be migrated；

The adjoining NF for notifying the first NF, by the address of the first NF of user-association to be migrated described in the adjacent NF Information update is the address information of the 2nd NF.

The embodiment of the invention also provides a kind of computer readable storage mediums, are stored with computer executable instructions, institute Computer executable instructions are stated for executing the implementation method of above-mentioned control plane resource migration.

In embodiments of the present invention, the lossless migration of user's control face resource is triggered by adjacent NF (NRF or the 3rd NF), The resource utilization of network can be promoted, while also ensuring the reliability of customer service with real-time optimization Internet resources, improved User experience.

Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right Specifically noted structure is achieved and obtained in claim and attached drawing.

Detailed description of the invention

Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.

Fig. 1 is the general frame schematic diagram of the 5th generation communication system (5G)；

Fig. 2 is that NF has found flow diagram；

Fig. 3 is the request PDU session establishment flow diagram that UE is initiated；

Fig. 4 is the flow chart (NRF triggering) of the implementation method of the control plane resource migration of the embodiment of the present invention；

Fig. 5 is the flow chart (being applied to NRF) of the implementation method of the control plane resource migration of the embodiment of the present invention；

Fig. 6 is the flow chart (the 3rd NF triggering) of the implementation method of the control plane resource migration of the embodiment of the present invention；

Fig. 7 is the flow chart (being applied to the 3rd NF) of the implementation method of the control plane resource migration of the embodiment of the present invention；

Fig. 8 is the flow chart (being applied to the 2nd NF) of the implementation method of the control plane resource migration of the embodiment of the present invention；

Fig. 9~Figure 21 is the flow chart of the implementation method of the control plane resource migration of application example of the present invention；

Figure 22 is the realization device schematic diagram (being applied to NRF) of the control plane resource migration of the embodiment of the present invention；

Figure 23 is the realization device schematic diagram (being applied to the 3rd NF) of the control plane resource migration of the embodiment of the present invention；

Figure 24 is the realization device schematic diagram (being applied to the 2nd NF) of the control plane resource migration of the embodiment of the present invention.

Specific embodiment

The embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can mutual any combination.

Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable Sequence executes shown or described step.

For the NF for having built up PDU session connection, due to network or self reason overload (capacity and the utilization of resources Rate is excessively high) perhaps some NF failure (such as network failure and NF faults itself) or O&M upgrading, Fault Isolation, hand Work reducing and expansion hold etc. need operation maintenance personnel operate or other in the case of, when needing user's control face resource migration, guarantee business In successional situation, the embodiment of the present invention passes through adjacent NF (NRF or other NF) and triggers control plane resource migration, to realize use Family control plane resource dynamic migration.

As shown in figure 4, triggering user's control face resource migration by NRF, realize that the user's control face resource of the first NF is moved The 2nd NF is moved to, the implementation method of the control plane resource migration of the embodiment of the present invention includes:

Step 101, NRF determines the user's control face resource of migration first network functional entity NF.

Wherein, the first NF is the relevant NF of control plane, may is that SMF, AMF, UDM or PCF.

Wherein, the NRF determines the user's control face resource of the first NF of migration, can use but be not limited to such as under type:

Mode one: the NRF receives the information on load that the first NF is sent, and determines migration the according to the information on load All or part of user's control face resource of one NF.

Wherein, the NRF can receive the information on load that one or more NF timings are sent to it, and be believed according to the load Breath determines the first NF overload, it is determined that all or part of user's control face resource of the first NF of migration；The load letter Breath may include: user in the capacity information of the NF and the address information and the NF of resource utilization information and NF Identification information.

Mode two, what the adjoining NF that the NRF receives the first NF was sent reports information, reports information true according to described Surely all or part of user's control face resource of the first NF is migrated.

Wherein, the adjoining NF of the first NF monitors the first NF, when link failure or overload occurs in the first NF The case where when, be reported to the NRF, reporting information may include: the state of the first NF, such as failure, unreachable or mistake The slice information and location information of load and the first NF.Wherein, the slice information is that network is sliced (Network Slice information) may include NSSAI (Network Slice Selection Assistance Information, net Network slice selection help information) and S-NSSAI (Single Network Slice Selection Assistance Information, single network slice selection auxiliary information).

The adjacent NF refers to, NF with communication connection relationship, for example, if first NF be adjacent with the first NF SMF, then AMF, NRF, PCF, UDM, UPF abut NF for it.

It should be noted that, although NRF is the adjoining NF of the first NF, but due to being that the adjoining NF of the first NF is reported To NRF, so the adjoining NF default of the first NF does not include NRF herein, description elsewhere is also similar, no longer one by one It points out.

Mode three, the connected NF of the NRF monitoring, all or part of user of the first NF of migration is determined according to monitoring information Control plane resource.

Wherein, all NF of the NRF actively monitoring determine migration pair when finding faulty link or overload As.

Mode four, the NRF receive the migration instruction of network management, determine all or part of user's control of the first NF of migration Face resource.

For example, operation maintenance personnel determination needs to carry out the migration of user's control face, migration instruction, the NRF are issued by network management It is migrated according to the migration instruction received.

Step 102, the 2nd NF of the NRF selection and the first NF same type.

Wherein, the NRF can be according to information on load, location information and the slice information of the first NF, selection and institute State the 2nd NF of the first NF same type.

For example, NRF can be according to the few NF with the first NF same type of policy selection load as the 2nd NF.

Wherein, the first NF is properly termed as source NF, and the 2nd NF is properly termed as target NF.

Step 103, the NRF sends user's control face migration request, the user's control face migration to the 2nd NF Request carries the address information of the first NF and the identification information of user to be migrated.

Wherein, the address information of the first NF can be indicated by one of following: FQDN (Fully Qualified Domain Name, full name domain name), URL (Uniform Resource Locator, uniform resource locator), IP (Internet Protocol, iso-ip Internetworking protocol ISO-IP) address.

When identifying the address information of NF using FQDN or URL, corresponding table of the FQDN/URL with IP address can be set, work as NF IP address change, such as switch to the 2nd NF from the first NF, corresponding IP address is also switched to from the IP address of the first NF The IP address of 2nd NF, FQDN/URL can not change, and only change FQDN/URL with the IP address in the corresponding table of IP address and are It can.

Wherein, user to be migrated can be indicated in the form of user group (UE Set), then the mark letter of user to be migrated Breath can be the identification information of user group (UE Set), for example, by using group mark (a Group ID), IMSI (International Mobile Subscriber Identification Number, international mobile subscriber identity) section, one of SMF ID It indicates.Wherein, if using SMF ID, then it represents that all users for belonging to this SMF require to switch.

Step 104, the 2nd NF obtains the control plane resource information of the user to be migrated.

It in one embodiment, may include: the 2nd NF to SDSF (Structured Data Storage Network function, structural data storage entity) send acquisition user information request, the acquisition user information request Carry the identification information of the user to be migrated；2nd NF receives the acquisition user information response of the SDSF, described to obtain Take the control plane resource information that family information response carries the user to be migrated.

Wherein, for different NF, the control plane resource information of the user to be migrated needed may different, institute The control plane resource information for stating user to be migrated can include but is not limited to: user context information.For example, in an embodiment In, the control plane resource information of the user to be migrated includes: user context information and PDU session information.In another implementation In example, the control plane resource information of the user to be migrated includes: user context information, PDU session information and Qos (Quality of Service, service quality) and Flow (stream) control information.

Wherein, the user context information may include: user identifier, and affiliated user group (UE Set) mark is used Family location information and user signing contract information etc..PDU session information may include: PDU session identification, access module (sscMode), the address UE, DNAI (Data Network Access Identifier, data network accessing identifier), adjoining Nodal information, affiliated slice information, DNN (Data Network Name, data network title) etc..Qos and Flow controls information It may include: Qos, QFI (QoS Flow Identifier, QoS flow identifier), accounting-related information.

Step 105, the 2nd NF notifies the adjoining NF of the first NF, by user to be migrated described in the adjacent NF The address information of associated first NF is updated to the address information of the 2nd NF.

Wherein, the 2nd NF can be, but not limited to according to the control plane resource information (such as user context information) The address information of the adjacent NF is obtained, to notify the adjacent NF.

Wherein, as previously mentioned, the IP address of the first NF to be updated to the IP of the 2nd NF if address information uses IP address Address, it may be assumed that it is described to notify that the IP address of the first NF of the user-association to be migrated is updated to by the adjoining NF of the first NF The IP address of 2nd NF；

If address information uses FQDN or URL, by the FQDN of FQDN/URL and the first NF in the corresponding table of IP address Or the corresponding IP address of URL is updated to the IP address of the 2nd NF, it may be assumed that notifies the adjoining NF of the first NF by the use to be migrated The corresponding IP address of FQDN or URL of associated first NF in family is updated to the IP address of the 2nd NF.In this embodiment In, corresponding table of the FQDN/URL with IP address is established, if necessary to more new IP address, it is only necessary to corresponding table is updated, when practical application It is more convenient.

After step 105, can also include:

Step 106, the 2nd NF sends to the NRF and sends the migration response of user's control face, the user's control face Migration response carries the information that the migration of user's control face is completed.

Wherein, the information that the migration of user's control face is completed indicates that all or part of user's control face resource of the first NF has been moved Move to the 2nd NF.

Step 107, the NRF sends user's control face to the first NF and migrates completion notice, the user's control face Migration completion notice carries the identification information of the address information of the 2nd NF and the user that has moved.

Wherein, it is completed when user's control face migrates, above-mentioned user to be migrated becomes the user that has moved.

Step 108, the first NF delete described in have moved the information of user.

First NF deletes the information of the local user that has moved, releases local resource, can improve the feelings of itself overload Condition realizes the load of Balance route face entity, the deployment of optimal control torus network.

As another embodiment, after step 105, it can also be that the 2nd NF is sent to the first NF to use Family control plane migrates completion notice, and the user's control face migration completion notice carries the address information of the 2nd NF and moved Divert from one use to another the identification information at family；First NF has moved the information of user described in deleting.

By the above-mentioned means, the NRF can be by a part of user that can be migrated in the first NF of overload and phase The PDU session connection of pass, moves in the 2nd NF newly selected, then discharges this certain customers letter in the first NF of overload Breath, to realize the control plane lossless migration of accessed user.The utilization of resources of network can be promoted with real-time optimization Internet resources Rate, while also ensuring the reliability of customer service, the user experience is improved.

For NRF, as shown in figure 5, a kind of implementation method of control plane resource migration provided in an embodiment of the present invention, packet It includes:

Step 201, NRF determines the user's control face resource of migration first network functional entity NF.

Wherein, the first NF is the relevant NF of control plane, may is that SMF, AMF, UDM or PCF.

Wherein, the NRF determines the user's control face resource of the first NF of migration, can use but be not limited to such as under type:

Mode one: the NRF receives the information on load that the first NF is sent, and determines migration the according to the information on load All or part of user's control face resource of one NF.

Mode two, what the adjoining NF that the NRF receives the first NF was sent reports information, reports information true according to described Surely all or part of user's control face resource of the first NF is migrated.

Mode three, the connected NF of the NRF monitoring, all or part of user of the first NF of migration is determined according to monitoring information Control plane resource.

Mode four, the NRF receive the migration instruction of network management, determine all or part of user's control of the first NF of migration Face resource.

Step 202, the 2nd NF of the NRF selection and the first NF same type.

Wherein, the NRF can be according to information on load, location information and the slice information of the first NF, selection and institute State the 2nd NF of the first NF same type.

For example, NRF can be according to the few NF with the first NF same type of policy selection load as the 2nd NF.

Step 203, the NRF sends user's control face migration request, the user's control face migration to the 2nd NF Request carries the address information of the first NF and the identification information of user to be migrated.

Wherein, the address information of the first NF can be indicated by one of following: FQDN, URL, IP address.

Wherein, user to be migrated can be indicated in the form of user group (UE Set), then the mark letter of user to be migrated Breath can be the identification information of user group (UE Set), for example, by using one in a group mark (Group ID), IMSI sections, SMF ID Kind indicates.Wherein, if using SMF ID, then it represents that all users for belonging to this SMF require to switch.

In one embodiment, after the NRF sends user's control face migration request to the 2nd NF, further includes:

The NRF receives the user's control face migration response that the 2nd NF is sent, the user's control face migration response The information that the user's control face migration of carrying is completed；

The NRF sends user's control face to the first NF and migrates completion notice, and the user's control face migration is completed Notice carries the identification information of the address information of the 2nd NF and the user that has moved.

In embodiments of the present invention, the lossless migration that user's control face resource is triggered by NRF, for having built up PDU The NF of session connection, the case where if there is overload, can Balance route face entity through the above way load, promote net The resource utilization of network, real-time optimization Internet resources.In addition, if there is feelings such as O&M upgrading, Fault Isolation, manual reducing and expansion appearances Condition, through the foregoing embodiment it is also ensured that the continuity and reliability of customer service, the user experience is improved.

As shown in fig. 6, triggering user's control face resource migration by the 3rd NF, the user's control face resource of the first NF is realized It migrates to the 2nd NF, the implementation method of the control plane resource migration of the embodiment of the present invention includes:

Step 301, the 3rd NF determines the user's control face resource of the first NF of migration, passes through NRF selection and the first NF 2nd NF of same type；Wherein, the 3rd NF is the adjoining NF of the first NF.

Wherein, the first NF and the 3rd NF is the relevant NF of control plane, may is that SMF, AMF, UDM or PCF, described 3rd NF be the different types of NF of the first NF, for example, when the first NF be SMF when, the 3rd NF can be AMF, UDM or PCF；When the first NF is AMF, the 3rd NF can be SMF, UDM or PCF；When the first NF is UDM, the 3rd NF can To be AMF or SMF；When the first NF is PCF, the 3rd NF can be with SMF or AMF.

3rd NF determines that the user's control face resource of the first NF of migration may include such as one of under type:

Mode one, the 3rd NF receive the information on load that the first NF is sent, and are moved according to information on load determination Move all or part of user's control face resource of the first NF.

Wherein, the 3rd NF can receive the information on load that one or more NF timings are sent to it, and be believed according to the load Breath determines the first NF overload, it is determined that all or part of user's control face resource of the first NF of migration；The load letter Breath may include: user in the capacity information of the NF and the address information and the NF of resource utilization information and NF Identification information.

Mode two, the 3rd NF monitor the first NF, and whole or the portion of the first NF of migration are determined according to monitoring information Divide user's control face resource.

Wherein, the first NF of the 3rd NF actively monitoring determines migration the when finding that link is faulty or overload All or part of user's control face resource of one NF.

Mode three, the 3rd NF receive the migration instruction of network management, determine all or part of user of the first NF of migration Control plane resource.

Wherein, described by NRF selection and the 2nd NF of the first NF same type, may include: the 3rd NF to NRF initiates the request of the 2nd NF of discovery；3rd NF receives the response of the NRF, is carried selected by the NRF in the response The address information of the 2nd NF selected.

The address information of 2nd NF can be the IP address of the 2nd NF.

Step 302, the 3rd NF sends user's control face migration request to the 2nd NF, and the user's control face is moved It moves request and carries the address information of the first NF and the identification information of user to be migrated.

Wherein, the address information of the first NF can be indicated by one of following: FQDN, URL, IP address.

When identifying the address information of NF using FQDN or URL, corresponding table of the FQDN/URL with IP address can be set, work as NF IP address change, such as switch to the 2nd NF from the first NF, corresponding IP address is also switched to from the IP address of the first NF The IP address of 2nd NF, FQDN/URL can not change, and only change FQDN/URL with the IP address in the corresponding table of IP address and are It can.

Wherein, user to be migrated can be indicated in the form of user group (UE Set), then the mark letter of user to be migrated Breath can be the identification information of user group (UE Set), for example, by using one in a group mark (Group ID), IMSI sections, SMF ID Kind indicates.Wherein, if using SMF ID, then it represents that all users for belonging to this SMF require to switch.

Step 303, the 2nd NF obtains the control plane resource information of the user to be migrated.

In one embodiment, to may include: the 2nd NF send to SDSF obtains user information request, the acquisition User information request carries the identification information of the user to be migrated；2nd NF receives the acquisition user information of the SDSF Response, the related information for obtaining user information response and carrying the user to be migrated and the first NF.

Wherein, for different NF, the control plane resource information of the user to be migrated needed may different, institute The control plane resource information for stating user to be migrated can include but is not limited to: user context information.For example, in an embodiment In, the control plane resource information of the user to be migrated includes: user context information and PDU session information.In another implementation In example, the control plane resource information of the user to be migrated includes: user context information, PDU session information and Qos and Flow Control information.

Step 304, the 2nd NF notifies the adjoining NF of the first NF, by user to be migrated described in the adjacent NF The address information of associated first NF is updated to the address information of the 2nd NF.

Wherein, the 2nd NF can be, but not limited to according to the control plane resource information (such as user context information) The address information of the adjacent NF is obtained, to notify the adjacent NF.

Wherein, as previously mentioned, the IP address of the first NF to be updated to the IP of the 2nd NF if address information uses IP address Address, it may be assumed that it is described to notify that the IP address of the first NF of the user-association to be migrated is updated to by the adjoining NF of the first NF The IP address of 2nd NF；

If address information uses FQDN or URL, by the FQDN of FQDN/URL and the first NF in the corresponding table of IP address Or the corresponding IP address of URL is updated to the IP address of the 2nd NF, it may be assumed that notifies the adjoining NF of the first NF by the use to be migrated The corresponding IP address of FQDN or URL of associated first NF in family is updated to the IP address of the 2nd NF.In this embodiment In, corresponding table of the FQDN/URL with IP address is established, if necessary to more new IP address, it is only necessary to corresponding table is updated, when practical application It is more convenient.

After the step 304, can also include:

Step 305, the 2nd NF sends user's control face to the first NF and migrates completion notice, carries described second The identification information of the address information of NF and the user that has moved.

Step 306, the first NF delete described in have moved the information of user.

First NF deletes the information of the local user that has moved, releases local resource, can improve the feelings of itself overload Condition realizes the load of Balance route face entity, the deployment of optimal control torus network.

As another embodiment, after the step 304, it can also be that the 2nd NF is sent to the 3rd NF to use The migration response of family control plane, the user's control face migration response carry the information that the migration of user's control face is completed；The third NF sends the user's control face to the first NF and migrates completion notice；First NF has moved the letter of user described in deleting Breath.

In embodiments of the present invention, the user's control face resource lossless migration that the first NF is triggered by the 3rd NF, for Be set up the NF of PDU session connection, the case where if there is overload, can Balance route face entity through the above way it is negative Lotus promotes the resource utilization of network, real-time optimization Internet resources.In addition, if there is O&M upgrading, Fault Isolation, craft Situations such as reducing and expansion are held, through the foregoing embodiment it is also ensured that the continuity and reliability of customer service, improves user's body It tests.

For the 3rd NF, as shown in fig. 7, a kind of implementation method of control plane resource migration provided in an embodiment of the present invention, Include:

Step 401, the 3rd NF determines the user's control face resource of the first NF of migration, passes through NRF selection and the first NF 2nd NF of same type；Wherein, the 3rd NF is the adjoining NF of the first NF.

Wherein, the first NF and the 3rd NF is the relevant NF of control plane, may is that SMF, AMF, UDM or PCF, described 3rd NF be the different types of NF of the first NF, for example, when the first NF be SMF when, the 3rd NF can be AMF, UDM or PCF；When the first NF is AMF, the 3rd NF can be SMF, UDM or PCF；When the first NF is UDM, the 3rd NF can To be AMF or SMF；When the first NF is PCF, the 3rd NF can be with SMF or AMF.

3rd NF determine all or part of user's control face resource of the first NF of migration may include as under type it One:

Mode one, the 3rd NF receive the information on load that the first NF is sent, and are moved according to information on load determination Move all or part of user's control face resource of the first NF.

Mode two, the 3rd NF monitor the first NF, and whole or the portion of the first NF of migration are determined according to monitoring information Divide user's control face resource.

Mode three, the 3rd NF receive the migration instruction of network management, determine all or part of user of the first NF of migration Control plane resource.

Wherein, described by NRF selection and the 2nd NF of the first NF same type, may include: the 3rd NF to NRF initiates the request of the 2nd NF of discovery；3rd NF receives the response of the NRF, is carried selected by the NRF in the response The address information of the 2nd NF selected.

The address information of 2nd NF can be the IP address of the 2nd NF.

Step 402, the 3rd NF sends user's control face migration request to the 2nd NF, and the user's control face is moved It moves request and carries the address information of the first NF and the identification information of user to be migrated.

Wherein, the address information of the first NF can be indicated by one of following: FQDN, URL, IP address.

Wherein, user to be migrated can be indicated in the form of user group (UE Set), then the mark letter of user to be migrated Breath can be the identification information of user group (UE Set), for example, by using one in a group mark (Group ID), IMSI sections, SMF ID Kind indicates.Wherein, if using SMF ID, then it represents that all users for belonging to this SMF require to switch.

In one embodiment, it is described after the 3rd NF sends user's control face migration request to the 2nd NF Method further include:

3rd NF receives the user's control face migration response that the 2nd NF is sent, and the user's control face migration is rung The information that the migration of user's control face is completed should be carried；

3rd NF sends user's control face to the first NF and migrates completion notice, and the user's control face has migrated The identification information of the address information of the 2nd NF and the user that has moved is carried at notice.

In embodiments of the present invention, the user's control face resource lossless migration that the first NF is triggered by the 3rd NF, for It is set up the first NF of PDU session connection, it, can Balance route face entity through the above way the case where if there is overload Load, promote the resource utilization of network, real-time optimization Internet resources.In addition, if there is O&M upgrading, Fault Isolation, Situations such as manual reducing and expansion are held, through the foregoing embodiment it is also ensured that the continuity and reliability of customer service, improves use Family experience.

Referring to Fig. 4 and Fig. 6, for the 2nd NF, as shown in figure 8, the realization of the control plane resource migration of the embodiment of the present invention Method, comprising:

Step 501, the 2nd NF receives user's control face migration request, and user's control face migration request carries the first NF Address information and user to be migrated identification information；

Wherein, the 2nd NF receives the user's control face migration request that NRF or the 3rd NF is sent；

Wherein, the first NF and the 2nd NF is the relevant NF of control plane, may is that SMF, AMF, UDM or PCF.

Step 502, the 2nd NF obtains the control of the user to be migrated according to the identification information of the user to be migrated Face resource information processed；

In one embodiment, to may include: the 2nd NF send to SDSF obtains user information request, the acquisition User information request carries the identification information of the user to be migrated；2nd NF receives the acquisition user information of the SDSF Response, the control plane resource information for obtaining user information response and carrying the user to be migrated.

Wherein, the control plane resource information of the user to be migrated may include one of following:

User context information；

User context information and PDU session information；

User context information, PDU session information and Qos Flow information.

Step 503, the 2nd NF notifies the adjoining NF of the first NF, by user to be migrated described in the adjacent NF The address information of associated first NF is updated to the address information of the 2nd NF.

In one embodiment, may include: the adjoining NF for notifying the first NF, by described in the adjacent NF wait move The IP address for diverting from one use to another associated first NF in family is updated to the IP address of the 2nd NF, alternatively, notifying the adjoining of the first NF The corresponding IP address of FQDN or URL of first NF of user-association to be migrated described in the adjacent NF is updated to described by NF The IP address of 2nd NF.

In one embodiment, after the step 503, further includes:

2nd NF sends the migration of user's control face and completes response, and the user's control face migration response carries user's control The information that face migration processed is completed.

Wherein it is possible to be the 2nd NF to the NRF transmission user's control face migration response, user's control is sent by NRF Face processed migrates completion notice and is also possible to institute so that the first NF deletes local user information of having moved to the first NF It states the 2nd NF and sends the user's control face migration response to the 3rd NF, the migration of user's control face is sent by the 3rd NF and is completed Notice is to the first NF, so that the first NF deletes local user information of having moved.

It is also possible to the 2nd NF and directly sends the user's control face migration completion notice to the first NF, so that First NF deletes local user information of having moved.

In the embodiment of the present invention, by the 2nd NF by the user's control face resource migration in the first NF to the 2nd NF, The resource utilization of network can be promoted, while also ensuring the reliability of customer service with real-time optimization Internet resources, improved User experience.

It is illustrated below with some application examples.

As shown in figure 9, in this application example, by taking the first NF and the 2nd NF is SMF as an example, wherein the first NF is as source SMF, the 2nd NF is as target SMF.User's control face resource dynamic migration is triggered by NRF, wherein SMF timing in source is logical to NRF Know load service condition, carries the user group UE Set mark that can be migrated and node FQDN/URL mark, NRF judge source SMF Overload, according to position, slice, DNAI (Data Network Access Identifier, data network accessing identifier) With information and the weight of each SMF, load, the covering position region such as other service parameters, selection target SMF, according to source SMF Bring subscriber group information selects one or more user to move on target SMF, when accessed user migrates completion Afterwards, target SMF notifies periphery functional entity, and then target SMF notifies NRF that migration is completed, the use that NRF notifies SMF migration in source to walk Family group and user, source SMF locally delete associated user, realize source SMF user's control face resource migration.This example includes following step It is rapid:

Step 900, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step 901, source SMF reports information on load to NRF, and information on load includes current loads value, the user that can be migrated Group UE Set mark and node FQDN/URL mark, slice information, location information；

Step a.NRF judges whether source SMF needs user to migrate, if it is not needed, being not processed；It moves if necessary Family is diverted from one use to another, source SMF load is reduced, then executes 902 steps；

Step 902, NRF is initiated according to slice, position and source SMF information on load, selection target SMF, NRF to target SMF User's control face migration request carries the information such as the identification information of user to be migrated and the address information of source SMF, wherein wait move Diverting from one use to another family can be user group UE Set, and the address information of source SMF can be FQDN or the URL mark of the node；

Step 903, target SMF sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 904, SDSF replys the response of target SMF user information, carries the identification information of user to be migrated, above and below user The SMF such as literary information, PDU session and Qos Flow control plane resource information related to user；

Step 905, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 906, target SMF notifies UDM to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 907, target SMF notifies UPF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 908, target SMF notifies AMF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated TEIDC (Tunnel Endpoint Identifier Control, the control plane tunnel of the SMF IP address and target SMF answered Road Endpoint ID) information, AMF updates the address information and TEIDC information that user group to be migrated corresponds to SMF, if the address of SMF Information is indicated using IP address, then is directly substituted for the IP address of target SMF, if the address information of SMF uses FQDN or URL It indicates, then the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 909, target SMF replys the migration response of user's control face to NRF, and mark target SMF has built up relevant User information, can be with normal operation；

Step 910, NRF notifies the migration of source SMF user's control face to complete, and carries the mark letter of the user group migrated The IP address of breath and the corresponding target SMF of the user group；

Step b. source SMF locally deletes the user information for having migrated to target SMF.

As shown in Figure 10, in this application example, by taking the first NF and the 2nd NF is PCF as an example, wherein the first NF is as source PCF, the 2nd NF is as target PCF.User's control face resource dynamic migration is triggered by NRF, wherein PCF timing in source is logical to NRF Know load service condition, carries the user group UE Set mark that can be migrated and node FQDN/URL mark, NRF judge source PCF Overload, according to position, slice and information and the weight of each PCF, load, the covering position region such as other service parameters, Selection target PCF selects one or more user to move on target PCF according to source PCF bring subscriber group information, when After accessed user migrates completion, target PCF notifies periphery functional entity, target PCF to notify NRF that migration is completed, and NRF is notified The user group and user that PCF migration in source is walked, source PCF locally delete associated user, realize source PCF user's control face resource migration. This example includes the following steps:

Step 1000, UE initiates session establishment request, and session establishment is completed, source PCF accessing user；

Step 1001, source PCF reports information on load to NRF, and information includes current loads value, the user group UE that can be migrated Set mark and node FQDN/URL mark, slice information, location information；

Step a.NRF judges whether source PCF needs user to migrate, if it is not needed, being not processed；It moves if necessary Family is diverted from one use to another, source PCF load is reduced, then executes 1002 steps；

Step 1002, NRF is initiated according to slice, position and source PCF information on load, selection target PCF, NRF to target PCF User's control face migration request carries the information such as the identification information of user to be migrated and the address information of source PCF, wherein wait move Diverting from one use to another family can be user group UE Set, and the address information of source PCF can be FQDN or the URL mark of the node；

Step 1003, target PCF sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 1004, SDSF replys the response of target PCF user information, carries identification information, the Yong Hushang of user to be migrated The PCF such as context information, PDU session, Qos Flow, PDR, FAR control plane resource information related to user；

Step 1005, target PCF notifies SMF to update the PCF nodal information of user to be migrated, carries user group pair to be migrated The PCF IP address answered, SMF update the address information that user group to be migrated corresponds to PCF, if the address information of PCF is using IP Location indicates, then is directly substituted for the IP address of target PCF, will be to if the address information of PCF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated PCF of migrated users group is updated to the IP address of target PCF；

Step 1006, target PCF notifies AMF to update the PCF nodal information of user to be migrated, carries user group pair to be migrated The PCF IP address answered, AMF update the address information that user group to be migrated corresponds to PCF, if the address information of PCF is using IP Location indicates, then is directly substituted for the IP address of target PCF, will be to if the address information of PCF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated PCF of migrated users group is updated to the IP address of target PCF；

Step 1007, target PCF replys the migration response of user's control face to NRF, and mark target PCF has built up relevant User information, can be with normal operation；

Step 1008, NRF notifies the migration of source PCF user's control face to complete, and carries the mark letter of the user group migrated The IP address of breath and the corresponding target PCF of the user group；

Step b. source PCF locally deletes the user information for having migrated to target PCF.

As shown in figure 11, in this application example, by taking the first NF and the 2nd NF is UDM as an example, wherein the first NF is as source UDM, the 2nd NF is as target UDM.User's control face resource dynamic migration is triggered by NRF, wherein UDM timing in source is logical to NRF Know load service condition, carries the user group UE Set mark that can be migrated and node FQDN/URL mark, NRF judge source UDM Overload, according to position, slice and information and the weight of each UDM, load, the covering position region such as other service parameters, Selection target UDM selects one or more user to move on target UDM according to source UDM bring subscriber group information, when After accessed user migrates completion, target UDM notifies periphery functional entity, target UDM to notify NRF that migration is completed, and NRF is notified The user group and user that UDM migration in source is walked, it is local to delete associated user, realize source UDM user's control face resource migration.This example Include the following steps:

Step 1100, UE initiates session establishment request, and session establishment is completed, source UDM accessing user；

Step 1101, source UDM reports information on load to NRF, and information includes current loads value, the user group UE that can be migrated Set mark and node FQDN/URL mark, slice information, location information；

Step a.NRF judges whether source UDM needs user to migrate, if it is not needed, being not processed；It moves if necessary Family is diverted from one use to another, source UDM load is reduced, then executes 1102 steps；

Step 1102, NRF is initiated according to slice, position and source UDM information on load, selection target UDM, NRF to target UDM User's control face migration request carries the information such as the identification information of user to be migrated and the address information of source UDM, wherein wait move Diverting from one use to another family can be user group UE Set, and the address information of source UDM can be FQDN or the URL mark of the node；

Step 1103, target UDM sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 1104, SDSF replys the response of target UDM user information, carries identification information, the Yong Hushang of user to be migrated The UDM such as context information, PDU session control plane resource information related to user；

Step 1105, target UDM notifies SMF to update the UDM nodal information of user to be migrated, carries user group pair to be migrated The UDM IP address answered, SMF update the address information that user group to be migrated corresponds to UDM, if the address information of UDM is using IP Location indicates, then is directly substituted for the IP address of target UDM, will be to if the address information of UDM is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated UDM of migrated users group is updated to the IP address of target UDM；

Step 1106, target UDM notifies AMF to update the UDM nodal information of user to be migrated, carries user group pair to be migrated The UDM IP address answered, AMF update the address information that user group to be migrated corresponds to UDM, if the address information of UDM is using IP Location indicates, then is directly substituted for the IP address of target UDM, will be to if the address information of UDM is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated UDM of migrated users group is updated to the IP address of target UDM；

Step 1107, target UDM replys the migration response of user's control face to NRF, and mark target UDM has built up relevant User information, can be with normal operation；

Step 1108, NRF notifies the migration of source UDM user's control face to complete, and carries the mark letter of the user group migrated The IP address of breath and the corresponding target UDM of the user group；

Step b. source UDM locally deletes the user information for having migrated to target UDM.

As shown in figure 12, in this application example, by taking the first NF and the 2nd NF is AMF as an example, wherein the first NF is as source AMF, the 2nd NF is as target AMF.User's control face resource dynamic migration is triggered by NRF, wherein AMF timing in source is logical to NRF Know load service condition, carries the user group UE Set mark that can be migrated and node FQDN/URL mark, NRF judge source AMF Overload, according to position, slice and information and the weight of each AMF, load, the covering position region such as other service parameters, Selection target AMF selects one or more user to move on target AMF according to source AMF bring subscriber group information, when After accessed user migrates completion, target AMF notifies periphery functional entity, and then target AMF notifies NRF that migration is completed, NRF The user group and user that AMF migration in notice source is walked, source AMF locally delete associated user, realize that source AMF user's control face resource is moved It moves.This example includes the following steps:

Step 1200, UE initiates session establishment request, and session establishment is completed, source AMF accessing user；

Step 1201, source AMF reports information on load to NRF, and information includes current loads value, the user group UE that can be migrated Set mark and node FQDN/URL mark, slice information, location information；

Step a.NRF judges whether source AMF needs user to migrate, if it is not needed, being not processed；It moves if necessary Family is diverted from one use to another, source SMF load is reduced, then executes 1202 steps；

Step 1202, NRF is initiated according to slice, position and source AMF information on load, selection target AMF, NRF to target AMF User's control face migration request carries the information such as the identification information of user to be migrated and the address information of source AMF, wherein wait move Diverting from one use to another family can be user group UE Set, and the address information of source AMF can be FQDN or the URL mark of the node；

Step 1203, target AMF sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 1204, SDSF replys the response of target AMF user information, carries identification information, the Yong Hushang of user to be migrated The AMF such as context information control plane resource information related to user；

Step 1205, target AMF notifies SMF to update the AMF nodal information of user to be migrated, carries user group pair to be migrated The AMF IP address answered, SMF updates the address information of user group corresponding A MF to be migrated, if the address information of AMF is using IP Location indicates, then is directly substituted for the IP address of target AMF, will be to if the address information of AMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated AMF of migrated users group is updated to the IP address of target AMF；

Step 1206, target AMF notifies UDM to update the AMF nodal information of user to be migrated, carries user group pair to be migrated The AMF IP address answered, UDM updates the address information of user group corresponding A MF to be migrated, if the address information of AMF is using IP Location indicates, then is directly substituted for the IP address of target AMF, will be to if the address information of AMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated AMF of migrated users group is updated to the IP address of target AMF；

Step 1207, target AMF notifies PCF to update the AMF nodal information of user to be migrated, carries user group pair to be migrated The AMF IP address answered, PCF updates the address information of user group corresponding A MF to be migrated, if the address information of AMF is using IP Location indicates, then is directly substituted for the IP address of target AMF, will be to if the address information of AMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated AMF of migrated users group is updated to the IP address of target AMF；

Step 1208, target AMF notifies RAN to update the AMF nodal information of user to be migrated, carries user group pair to be migrated The AMF IP address answered, RAN updates the address information of user group corresponding A MF to be migrated, if the address information of AMF is using IP Location indicates, then is directly substituted for the IP address of target AMF, will be to if the address information of AMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated AMF of migrated users group is updated to the IP address of target AMF；

Step 1209, target AMF replys the migration response of user's control face to NRF, and mark target AMF has built up relevant User information, can be with normal operation；

Step 1210, NRF notifies the migration of source AMF user's control face to complete, and carries the mark letter of the user group migrated The service IP address of breath and the corresponding target AMF of the user group；

Step b. source AMF locally deletes the user information for having migrated to target AMF.

As shown in figure 13, in this application example, by taking the first NF and the 2nd NF is SMF as an example, wherein the first NF is as source SMF, the 2nd NF is as target SMF.Similarly, the first NF and the 2nd N are also possible to the NF such as AMF, UDM or PCF.It is touched by NRF Hair family control plane resource dynamic migration, wherein AMF periodic monitor source SMF, in the case where source SMF failure or without response, AMF is unreachable to NRF notice source SMF, and NRF is according to the information such as position, slice, DNAI and other service parameters and each SMF Weight, load, covering position region, selection target SMF all moves to the user that source SMF is accessed on target SMF, when After accessed user migrates completion, target SMF notifies periphery functional entity, and the migration of notice NRF user's control face is completed, NRF The user group and user that SMF migration in notice source is walked, source SMF locally delete associated user, realize that source SMF user's control face resource is moved It moves.This example includes the following steps:

Step 1300, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step 1301, AMF carries out NF detection to source SMF；

Step a. is in the case that source SMF is without responding perhaps response timeout or having responded still overload；

Step 1302, AMF notifies NRF, source SMF failure/unreachable or overload, information slice information, position letter Breath；

Step 1303, NRF replys source SMF failure/unreachable or overload response of AMF；

Step 1304, NRF is initiated according to slice, position and source SMF information on load, selection target SMF, NRF to target SMF User's control face migration request carries the information such as the identification information of user to be migrated and the address information of source SMF, wherein wait move Diverting from one use to another family can be user group UE Set, and the address information of source SMF can be FQDN or the URL mark of the node；

Step 1305, target SMF sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 1306, SDSF replys the response of target SMF user information, carries identification information, the Yong Hushang of user to be migrated The SMF such as context information, PDU session and Qos Flow control plane resource information related to user；

Step 1307, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1308, target SMF notifies UDM to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1309, target SMF notifies UPF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1310, target SMF notifies AMF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The TEIDC information of the SMF IP address and target SMF answered, AMF update user group to be migrated correspond to SMF address information and TEIDC information is directly substituted for the IP address of target SMF, if SMF if the address information of SMF is indicated using IP address Address information indicated using FQDN or URL, then more by the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated New is the IP address of target SMF；

Step 1311, target SMF replys the migration response of user's control face to NRF, and mark target SMF has built up relevant User information, can be with normal operation；

Step 1312, NRF notifies the migration of source SMF user's control face to complete, and carries the mark letter of the user group migrated The IP address of breath and the corresponding target SMF of the user group；

Step b. source SMF locally deletes the user information for having migrated to target SMF.

As shown in figure 14, in this application example, by taking the first NF and the 2nd NF is SMF as an example, wherein the first NF is as source SMF, the 2nd NF is as target SMF.Similarly, the first NF and the 2nd N are also possible to the NF such as AMF, UDM or PCF.It is touched by NRF Hair family control plane resource dynamic migration, wherein PCF periodic monitor source SMF, in the case where source SMF failure or without response, AMF is unreachable to NRF notice source SMF, and NRF is according to the information such as position, slice, DNAI and other service parameters and each SMF Weight, load, covering position region, selection target SMF all moves to the user that source SMF is accessed on target SMF, when After accessed user migrates completion, target SMF notifies periphery functional entity, and the migration of notice NRF user's control face is completed, NRF The user group and user that SMF migration in notice source is walked, source SMF locally delete associated user, realize that source SMF user's control face resource is moved It moves.This example includes the following steps:

Step 1400, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step 1401, PCF carries out NF detection to source SMF；

Step a. is in the case that source SMF is without responding perhaps response timeout or having responded still overload；

Step 1402, PCF notifies NRF, source SMF failure/unreachable or overload, information slice information, position letter Breath；

Step 1403, PCF replys source SMF failure/unreachable or overload response of PCF；

Step 1404, NRF is initiated according to slice, position and source SMF information on load, selection target SMF, NRF to target SMF User's control face migration request carries the information such as the identification information of user to be migrated and the address information of source SMF, wherein wait move Diverting from one use to another family can be user group UE Set, and the address information of source SMF can be FQDN or the URL mark of the node；

Step 1405, target SMF sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 1406, SDSF replys the response of target SMF user information, carries identification information, the Yong Hushang of user to be migrated The SMF such as context information, PDU session and Qos Flow control plane resource information related to user；

Step 1407, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1408, target SMF notifies UDM to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1409, target SMF notifies UPF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1410, target SMF notifies AMF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The TEIDC information of the SMF IP address and target SMF answered, AMF update user group to be migrated correspond to SMF address information and TEIDC information is directly substituted for the IP address of target SMF, if SMF if the address information of SMF is indicated using IP address Address information indicated using FQDN or URL, then more by the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated New is the IP address of target SMF；

Step 1411, target SMF replys the migration response of user's control face to NRF, and mark target SMF has built up relevant User information, can be with normal operation；

Step 1412, NRF notifies the migration of source SMF user's control face to complete, and carries the mark letter of the user group migrated The IP address of breath and the corresponding target SMF of the user group；

Step b. source SMF locally deletes the user information for having migrated to target SMF.

As shown in figure 15, in this application example, by taking the first NF and the 2nd NF is SMF as an example, wherein the first NF is as source SMF, the 2nd NF is as target SMF.Similarly, the first NF and the 2nd N are also possible to the NF such as AMF, UDM or PCF.It is touched by NRF Hair family control plane resource dynamic migration, wherein UDM periodic monitor source SMF, in the case where source SMF failure or without response, UDM is unreachable to NRF notice source SMF, and NRF is according to the information such as position, slice, DNAI and other service parameters and each SMF Weight, load, covering position region, selection target SMF all moves to the user that source SMF is accessed on target SMF, when After accessed user migrates completion, target SMF notifies periphery functional entity, and the migration of notice NRF user's control face is completed, NRF The user group and user that SMF migration in notice source is walked, source SMF locally delete associated user, realize that source SMF user's control face resource is moved It moves.This example includes the following steps:

Step 1500, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step 1501, UDM carries out NF detection to source SMF；

Step a. is in the case that source SMF is without responding perhaps response timeout or having responded still overload；

Step 1502, UDM notifies NRF, source SMF failure/unreachable or overload, information slice information, position letter Breath；

Step 1503, PCF replys source SMF failure/unreachable or overload response of UDM；

Step 1504, NRF is initiated according to slice, position and source SMF information on load, selection target SMF, NRF to target SMF User's control face migration request carries the information such as the identification information of user to be migrated and the address information of source SMF, wherein wait move Diverting from one use to another family can be user group UE Set, and the address information of source SMF can be FQDN or the URL mark of the node；

Step 1505, target SMF sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 1506, SDSF replys the response of target SMF user information, carries identification information, the Yong Hushang of user to be migrated The SMF such as context information, PDU session and Qos Flow control plane resource information related to user；

Step 1507, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1508, target SMF notifies UDM to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1509, target SMF notifies UPF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1510, target SMF notifies AMF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The TEIDC information of the SMF IP address and target SMF answered, AMF update user group to be migrated correspond to SMF address information and TEIDC information is directly substituted for the IP address of target SMF, if SMF if the address information of SMF is indicated using IP address Address information indicated using FQDN or URL, then more by the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated New is the IP address of target SMF；

Step 1511, target SMF replys the migration response of user's control face to NRF, and mark target SMF has built up relevant User information, can be with normal operation；

Step 1512, NRF notifies the migration of source SMF user's control face to complete, and carries the mark letter of the user group migrated The IP address of breath and the corresponding target SMF of the user group；

Step b. source SMF locally deletes the user information for having migrated to target SMF.

As shown in figure 16, in this application example, by taking the first NF and the 2nd NF is SMF as an example, wherein the first NF is as source SMF, the 2nd NF is as target SMF.Similarly, the first NF and the 2nd N are also possible to the NF such as AMF, UDM or PCF.It is touched by NRF Hair family control plane resource dynamic migration, wherein NRF carries out state-detection to source SMF, when NRF detects source SMF failure, chain In the case that road is unreachable or overload, NRF is according to information such as position, slice, DNAI and other service parameters and each The weight of SMF, load, covering position region, selection target SMF all move to the user that source SMF is accessed on target SMF, After accessed user, which migrates, to complete, target SMF notifies periphery functional entity, and the migration of notice NRF user's control face is completed, The user group and user that NRF notifies SMF migration in source to walk, source SMF locally delete associated user, realize source SMF user's control face money Source migration.This example includes the following steps:

Step 1600, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step 1601, NRF detects source SMF progress SMF；

Step a. directly executes step 1103 in the case that source SMF is without response or response timeout；

Step 1602, source SMF responds NRF, reports information on load, slice information, location information；

Step b.NRF according to the load that source SMF is responded judges whether that user is needed to migrate, and executes step 1603；

Step 1603, NRF initiates to use according to slice, position and SMF information on load, selection target SMF, NRF to target SMF Family control plane migration request carries the information such as the identification information of user to be migrated and the address information of source SMF, wherein to be migrated User can be user group UE Set, and the address information of source SMF can be FQDN or the URL mark of the node；

Step 1604, target SMF sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 1605, SDSF replys the response of target SMF user information, carries identification information, the Yong Hushang of user to be migrated The SMF such as context information, PDU session and Qos Flow control plane resource information related to user；

Step 1606, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1607, target SMF notifies UDM to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1608, target SMF notifies UPF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1609, target SMF notifies AMF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The TEIDC information of the SMF IP address and target SMF answered, AMF update user group to be migrated correspond to SMF address information and TEIDC information is directly substituted for the IP address of target SMF, if SMF if the address information of SMF is indicated using IP address Address information indicated using FQDN or URL, then more by the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated New is the IP address of target SMF；

Step 1610, target SMF replys the migration response of user's control face to NRF, and mark target SMF has built up relevant User information, can be with normal operation；

Step 1611, NRF notifies the migration of source SMF user's control face to complete, and carries the mark letter of the user group migrated The IP address of breath and the corresponding target SMF of the user group；

Step c. source SMF locally deletes the user information for having migrated to target SMF.

As shown in figure 17, in this application example, by taking the first NF and the 2nd NF is SMF as an example, wherein the first NF is as source SMF, the 2nd NF is as target SMF.Similarly, the first NF and the 2nd N are also possible to the NF such as AMF, UDM or PCF.It is touched by NRF Hair family control plane resource dynamic migration, wherein when operation maintenance personnel is operated, such as following operation: O&M upgrading, Fault Isolation, manual reducing and expansion are held, and operation maintenance personnel is issued to NRF by instruction, and NRF is according to position, slice, DNAI and other services The information such as parameter and the weight of each SMF, load, covering position region, selection target SMF, the user that source SMF is accessed It all moves on target SMF, after accessed user, which migrates, to complete, target SMF notifies periphery functional entity, notifies NRF The migration of user's control face is completed, and the user group and user that NRF notifies SMF migration in source to walk, source SMF locally deletes associated user, real The migration of existing source SMF user's control face resource.This example includes the following steps:

Step 1700, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step a. is when operation maintenance personnel is operated, such as following operation: O&M upgrading, Fault Isolation, by hand contracting Dilatation；

Step 1701, network management platform issues the migration instruction of user's control face to NRF, carries the identification information of user to be migrated With the information such as the address information of source SMF, wherein user to be migrated can be user group UE Set, and the address information of source SMF can be with It is FQDN or the URL mark of the node；

Step 1702, NRF is initiated according to slice, position and source SMF information on load, selection target SMF, NRF to target SMF User's control face migration request carries the information such as the identification information of user to be migrated and the address information of source SMF, wherein wait move Diverting from one use to another family can be user group UE Set, and the address information of source SMF can be FQDN or the URL mark of the node；

Step 1703, target SMF sends to SDSF and obtains user information request, carries the identification information of user to be migrated；

Step 1704, SDSF replys the response of target SMF user information, carries identification information, the Yong Hushang of user to be migrated The SMF such as context information, PDU session and Qos Flow control plane resource information related to user；

Step 1705, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1706, target SMF notifies UDM to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1707, target SMF notifies UPF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1708, target SMF notifies AMF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The TEIDC information of the SMF IP address and target SMF answered, AMF update user group to be migrated correspond to SMF address information and TEIDC information is directly substituted for the IP address of target SMF, if SMF if the address information of SMF is indicated using IP address Address information indicated using FQDN or URL, then more by the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated New is the IP address of target SMF；

Step 1709, target SMF replys the migration response of user's control face to NRF, and mark target SMF has built up relevant User information, can be with normal operation；

Step 1710, NRF replys the migration of user's control face and responds to network management platform, and the migration of user's control face is completed；

Step 1711, NRF notifies the migration of source SMF user's control face to complete, and carries the mark letter of the user group migrated The IP address of breath and the corresponding target SMF of the user group；

Step b. source SMF locally deletes the user information for having migrated to target SMF.

As shown in figure 18, in this application example, by taking the first NF and the 2nd NF is SMF as an example, wherein the first NF is as source SMF, the 2nd NF is as target SMF.Similarly, the first NF and the 2nd N are also possible to the NF such as AMF, UDM or PCF.3rd NF is For AMF, AMF periodic monitor source SMF, in the case where source SMF failure or without response, AMF is moved to NRF request target SMF Family is diverted from one use to another, NRF is according to the information such as position, slice, DNAI and other service parameters and the weight of each SMF, load, covering The band of position, selection target SMF, AMF notice target SMF move to the SMF user accessed in source on target SMF, when having accessed After user migrates completion, target SMF notifies periphery functional entity, and notice source SMF, which is locally deleted, migrates the user group of walking, and realizes Source SMF user's control face resource migration.This example includes the following steps:

Step 1800, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step 1801, AMF carries out NF detection to source SMF；

Step a. is when source SMF is without response or response timeout；

Step 1802, AMF sends request discovery target SMF to NRF, carries information slice information, location information；

Step 1803, NRF is requesting to respond according to slice, position and source SMF information on load, selection target SMF to AMF Target SMF IP address is carried in message；

Step 1804, AMF initiates user's control face migration request to target SMF, carries the identification information of user to be migrated With the information such as the address information of source SMF, wherein user to be migrated can be user group UE Set, and the address information of source SMF can be with It is FQDN or the URL mark of the node；

Step 1805, target SMF is sent to SDSF obtains subscriber group information request, carries the mark letter of user to be migrated Breath；

Step 1806, SDSF replys the response of target SMF user information, carries identification information, the Yong Hushang of user to be migrated The SMF such as context information, PDU session and Qos Flow control plane resource information related to user；

Step 1807, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1808, target SMF notifies UDM to update the SMF nodal information of user group to be migrated, carries user group to be migrated Corresponding SMF IP address, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF uses IP Address indicates, then is directly substituted for the IP address of target SMF, will if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 1809, target SMF notifies UPF to update the SMF nodal information of user group to be migrated, carries user group to be migrated Corresponding SMF IP address, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF uses IP Address indicates, then is directly substituted for the IP address of target SMF, will if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 1810, target SMF notifies AMF to update the SMF nodal information of user group to be migrated, carries user group to be migrated The TEIDC information of corresponding SMF IP address and target SMF, AMF update user group to be migrated correspond to SMF address information and TEIDC information is directly substituted for the IP address of target SMF, if SMF if the address information of SMF is indicated using IP address Address information indicated using FQDN or URL, then more by the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated New is the IP address of target SMF；

Step 1811, target SMF notifies the migration of source SMF user's control face to complete, and carries the mark of the user group migrated Know information；

Step b. source SMF locally deletes the subscriber group information for having migrated to target SMF.

As shown in figure 19, in this application example, PCF periodic monitor source SMF, when source SMF failure or without response the case where Under, PCF to NRF request target SMF migrated users, NRF according to information such as position, slice, DNAI and other service parameters, and The weight of each SMF, load, covering position region, selection target SMF, AMF notice target SMF move the source SMF user accessed It moves on on target SMF, after accessed user, which migrates, to complete, target SMF notifies periphery functional entity, notice source SMF local The user group that migration is walked is deleted, realizes source SMF user's control face resource migration.This example includes the following steps:

Step 1900, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step 1901, PCF carries out NF detection to source SMF；

Step a. is when source SMF is without response or response timeout

Step 1902, PCF sends request discovery target SMF to NRF, carries information slice information, location information；

Step 1903, NRF disappears according to slice, position and SMF information on load, selection target SMF to AMF request response Target SMF IP address is carried in breath；

Step 1904, PCF initiates user's control face migration request to target SMF, carries the identification information of user to be migrated With the information such as the address information of source SMF, wherein user to be migrated can be user group UE Set, and the address information of source SMF can be with It is FQDN or the URL mark of the node；

Step 1905, target SMF is sent to SDSF obtains subscriber group information request, carries the mark letter of user to be migrated Breath；

Step 1906, SDSF replys the response of target SMF subscriber group information, carries identification information, the user of user to be migrated The SMF such as contextual information, PDU session and Qos Flow control plane resource information related to user；

Step 1907, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 1908, target SMF notifies UDM to update the SMF nodal information of user group to be migrated, carries user group to be migrated Corresponding SMF IP address, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF uses IP Address indicates, then is directly substituted for the IP address of target SMF, will if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 1909, target SMF notifies UPF to update the SMF nodal information of user group to be migrated, carries user group to be migrated Corresponding SMF IP address, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF uses IP Address indicates, then is directly substituted for the IP address of target SMF, will if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 1910, target SMF notifies AMF to update the SMF nodal information of user group to be migrated, carries user group to be migrated The TEIDC information of corresponding SMF IP address and target SMF, AMF update user group to be migrated correspond to SMF address information and TEIDC information is directly substituted for the IP address of target SMF, if SMF if the address information of SMF is indicated using IP address Address information indicated using FQDN or URL, then more by the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated New is the IP address of target SMF；

Step 1911, target SMF notifies the migration of source SMF user's control face to complete, and carries the mark of the user group migrated Know information；

Step b. source SMF locally deletes the subscriber group information for having migrated to target SMF.

As shown in figure 20, in this application example, UDM periodic monitor source SMF, when source SMF failure or without response the case where Under, UDM to NRF request target SMF migrated users, NRF according to information such as position, slice, DNAI and other service parameters, and The weight of each SMF, load, covering position region, selection target SMF, AMF notice target SMF move the source SMF user accessed It moves on on target SMF, after accessed user, which migrates, to complete, target SMF notifies periphery functional entity, notice source SMF local The user group that migration is walked is deleted, realizes source SMF user's control face resource migration.This example includes the following steps:

Step 2000, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

Step 2001, UDM carries out NF detection to source SMF；

Step a. is when source SMF is without response or response timeout

Step 2002, UDM sends request discovery target SMF to NRF, carries information slice information, location information；

Step 2003, NRF is requesting to respond according to slice, position and source SMF information on load, selection target SMF to AMF Target SMF IP address is carried in message；

Step 2004, UDM initiates user's control face migration request to target SMF, carries the identification information of user to be migrated With the information such as the address information of source SMF, wherein user to be migrated can be user group UE Set, and the address information of source SMF can be with It is FQDN or the URL mark of the node；

Step 2005, target SMF is sent to SDSF obtains subscriber group information request, carries the mark letter of user to be migrated Breath；

Step 2006, SDSF replys the response of target SMF subscriber group information, carries identification information, the user of user to be migrated The SMF such as contextual information, PDU session and Qos Flow control plane resource information related to user；

Step 2007, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 2008, target SMF notifies UDM to update the SMF nodal information of user group to be migrated, carries user group to be migrated Corresponding SMF IP address, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF uses IP Address indicates, then is directly substituted for the IP address of target SMF, will if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 2009, target SMF notifies UPF to update the SMF nodal information of user group to be migrated, carries user group to be migrated Corresponding SMF IP address, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF uses IP Address indicates, then is directly substituted for the IP address of target SMF, will if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 2010, target SMF notifies AMF to update the SMF nodal information of user group to be migrated, carries user group to be migrated The TEIDC information of corresponding SMF IP address and target SMF, AMF update user group to be migrated correspond to SMF address information and TEIDC information is directly substituted for the IP address of target SMF, if SMF if the address information of SMF is indicated using IP address Address information indicated using FQDN or URL, then more by the corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated New is the IP address of target SMF；

Step 2011, target SMF notifies the migration of source SMF user's control face to complete, and carries the mark of the user group migrated Know information；

Step b. source SMF locally deletes the subscriber group information for having migrated to target SMF.

As shown in figure 21, in this application example, by taking the first NF and the 2nd NF is SMF as an example, wherein the first NF is as source SMF, the 2nd NF is as target SMF.Similarly, the first NF and the 2nd N are also possible to the NF such as AMF, UDM or PCF., the 3rd NF is For AMF, when UE is mobile or sends location updating, triggering AMF detects the target position of UE, and AMF discovery SMF cannot service mesh Mark TA (Tracking Area, tracing area), AMF to NRF request target SMF migrated users, NRF according to position, slice, The information such as DNAI and other service parameters and the weight of each SMF, load, covering position region, selection target SMF, AMF Notice target SMF moves to the SMF user accessed in source on target SMF, after accessed user, which migrates, to complete, target SMF Periphery functional entity, notice source SMF is notified locally to delete the user group that migration is walked, realize source SMF user's control face resource migration. This example includes the following steps:

Step 2100, UE initiates session establishment request, and session establishment is completed, source SMF accessing user；

When UE is mobile change in location occurs for step 2101a；

For step 2101b. when AMF receives the location update message or RAN handover request of the side RAN, AMF detects UE mesh Cursor position, AMF discovery source SMF are unable to the region service goal TA；

Step 2102, AMF sends request discovery target SMF to NRF, carries information slice information, location information；

Step 2103, NRF disappears according to slice, position and SMF information on load, selection target SMF to AMF request response Target SMF IP address is carried in breath；

Step 2104, AMF initiates user's control face migration request to target SMF, carries the identification information of user to be migrated With the information such as the address information of source SMF, wherein user to be migrated can be user group UE Set, and the address information of source SMF can be with It is FQDN or the URL mark of the node；

Step 2105, target SMF is sent to SDSF obtains subscriber group information request, carries the mark letter of user to be migrated Breath；

Step 2106, SDSF replys the response of target SMF subscriber group information, carries identification information, the user of user to be migrated The SMF such as contextual information, PDU session and Qos Flow control plane resource information related to user；

Step 2107, target SMF notifies PCF to update the SMF nodal information of user to be migrated, carries user group pair to be migrated The SMF IP address answered, PCF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF is using IP Location indicates, then is directly substituted for the IP address of target SMF, will be to if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of migrated users group is updated to the IP address of target SMF；

Step 2108, PCF is sent to target SMF updates response message, issues new policy information；

Step 2109, target SMF notifies UDM to update the SMF nodal information of user group to be migrated, carries user group to be migrated Corresponding SMF IP address, UDM update the address information that user group to be migrated corresponds to SMF, if the address information of SMF uses IP Address indicates, then is directly substituted for the IP address of target SMF, will if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 2110, target SMF notifies UPF to update the SMF nodal information of user group to be migrated, carries user group to be migrated Corresponding SMF IP address, UPF update the address information that user group to be migrated corresponds to SMF, if the address information of SMF uses IP Address indicates, then is directly substituted for the IP address of target SMF, will if the address information of SMF is indicated using FQDN or URL The corresponding IP address of FQDN/URL of the associated SMF of user group to be migrated is updated to the IP address of target SMF；

Step 2111, target SMF notifies AMF to update the SMF nodal information of user group to be migrated, carries user group to be migrated The TEIDC information of corresponding SMF IP address and target SMF, AMF update user group to be migrated correspond to SMF address information and TEIDC and target strategy information；If the address information of SMF is indicated using IP address, directly it is substituted for target SMF's IP address, if the address information of SMF is indicated using FQDN or URL, by the FQDN/URL of the associated SMF of user group to be migrated Corresponding IP address is updated to the IP address of target SMF；

Step 2112, AMF replys RAN update response, carries policy information；

Step 2113, target SMF notifies the migration of source SMF user's control face to complete, and carries the mark of the user group migrated Know information；

Step b. source SMF locally deletes the subscriber group information for having migrated to target SMF.

The embodiment of the present invention also provides a kind of realization device of control plane resource migration, is applied to NRF, the device is for real Existing above-described embodiment and embodiment, the descriptions that have already been made will not be repeated.As used below, term " module " can be with Realize the combination of the software and/or hardware of predetermined function.Although device described in following embodiment can be realized with software, But the realization of the combination of hardware or software and hardware is also that may and be contemplated.

As shown in figure 22, the embodiment of the present invention also provides a kind of realization device of control plane resource migration, is applied to NRF, Include:

First determining module 2201, for determining the user's control face resource of migration first network functional entity NF；

Selecting module 2202, for selecting and the 2nd NF of the first NF same type；

First sending module 2203, for sending user's control face migration request, the user's control to the 2nd NF Face migration request carries the address information of the first NF and the identification information of user to be migrated.

In one embodiment, further includes:

First receiving module, the user's control face migration response sent for receiving the 2nd NF, the user's control Face migration response carries the information that the migration of user's control face is completed；

First sending module 2203 is also used to send user's control face migration completion notice, institute to the first NF State the identification information that user's control face migration completion notice carries the address information of the 2nd NF and the user that has moved.

In one embodiment, first determining module 2201, is used for:

The information on load that the first NF is sent is received, whole or the portion of the first NF of migration are determined according to the information on load Divide user's control face resource；Or

Receive the adjoining NF transmission of the first NF reports information, reports information to determine the first NF's of migration according to described All or part of user's control face resource；Or

The connected NF of monitoring, all or part of user's control face resource of the first NF of migration is determined according to monitoring information；Or Person

The migration instruction for receiving network management, determines all or part of user's control face resource of the first NF of migration.

The embodiment of the present invention also provides a kind of network function repository functional entity, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

Determine the user's control face resource of the first NF of migration；

2nd NF of selection and the first NF same type；

User's control face migration request is sent to the 2nd NF, user's control face migration request carries described first The identification information of the address information of NF and user to be migrated.

In one embodiment, the processor is also used to execute following operation:

The user's control face migration response that the 2nd NF is sent is received, the user's control face migration response carries user The information that control plane migration is completed；

User's control face is sent to the first NF and migrates completion notice, and the user's control face migration completion notice carries The identification information of the address information of 2nd NF and the user that has moved.

As shown in figure 23, the embodiment of the present invention also provides a kind of realization device of control plane resource migration, is applied to third NF, the device is for realizing above-described embodiment and embodiment, and the descriptions that have already been made will not be repeated.It is used as following , the combination of the software and/or hardware of predetermined function may be implemented in term " module ".Although device described in following embodiment It can be realized with software, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.

The embodiment of the present invention provides a kind of realization device of control plane resource migration, is applied to the 3rd NF, comprising:

Second determining module 2301 is stored for determining the user's control face resource of the first NF of migration by network function 2nd NF of library facility entity NRF selection and the first NF same type；Wherein, the 3rd NF is the adjoining of the first NF NF；

Second sending module 2302, for sending user's control face migration request, the user's control to the 2nd NF Face migration request carries the address information of the first NF and the identification information of user to be migrated.

In one embodiment, further includes:

Second receiving module, the user's control face migration response sent for receiving the 2nd NF, the user's control Face migration response carries the information that the migration of user's control face is completed；

Second sending module 2302 is also used to send user's control face migration completion notice, institute to the first NF State the identification information that user's control face migration completion notice carries the address information of the 2nd NF and the user that has moved.

In one embodiment, second determining module 2301, is used for:

The information on load that the first NF is sent is received, whole or the portion of the first NF of migration are determined according to the information on load Divide user's control face resource；Or

The first NF is monitored, all or part of user's control face resource of the first NF of migration is determined according to monitoring information.

In one embodiment, second determining module 2301, is used for:

The request of the 2nd NF of discovery is sent to NRF；

The response of the NRF is received, the address information of selected 2nd NF of the NRF is carried in the response.

The embodiment of the present invention also provides a kind of network functional entity, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

The user's control face resource for determining the first NF of migration passes through network function repository functional entity NRF selection and institute State the 2nd NF of the first NF same type；

User's control face migration request is sent to the 2nd NF, user's control face migration request carries described first The identification information of the address information of NF and user to be migrated.

In one embodiment, the processor is also used to execute following operation:

The user's control face migration response that the 2nd NF is sent is received, the user's control face migration response carries user The information that control plane migration is completed；

User's control face is sent to the first NF and migrates completion notice, and the user's control face migration completion notice carries The identification information of the address information of 2nd NF and the user that has moved.

The embodiment of the present invention also provides a kind of realization device of control plane resource migration, is applied to the 2nd NF, which uses In realizing above-described embodiment and embodiment, the descriptions that have already been made will not be repeated.As used below, term " module " The combination of the software and/or hardware of predetermined function may be implemented.Although device described in following embodiment can be come with software It realizes, but the realization of the combination of hardware or software and hardware is also that may and be contemplated.

As shown in figure 24, the embodiment of the present invention provides a kind of realization device of control plane resource migration, is applied to the 2nd NF, Include:

Third receiving module 2401, for receiving user's control face migration request, user's control face migration request is taken The identification information of address information and user to be migrated with the first NF；

Module 2402 is obtained, for obtaining the control of the user to be migrated according to the identification information of the user to be migrated Face resource information；

Notification module 2403, for notifying the adjoining NF of the first NF, by user to be migrated described in the adjacent NF The address information of associated first NF is updated to the address information of the 2nd NF.

In one embodiment, further includes:

Third sending module, for sending user's control face migration completion notice, the user's control face migration is completed logical Know the identification information of the address information for carrying the 2nd NF and the user that has moved.

In one embodiment, the acquisition module 2402, is used for:

It is sent to SDSF and obtains user information request, the mark for obtaining user information request and carrying the user to be migrated Know information；

The acquisition user information response that the SDSF is sent is received, the acquisition user information response carries described to be migrated The control plane resource information of user.

In one embodiment, the notification module 2403, is used for:

The adjoining NF for notifying the first NF, by the IP of the first NF of user-association to be migrated described in the adjacent NF Location is updated to the IP address of the 2nd NF, alternatively,

The adjoining NF for notifying the first NF, by the FQDN of the first NF of user-association to be migrated described in the adjacent NF Or the corresponding IP address of URL is updated to the IP address of the 2nd NF.

The embodiment of the present invention also provides a kind of network functional entity, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

Receive user's control face migration request, user's control face migration request carry the first NF address information and to The identification information of migrated users；

The control plane resource information of the user to be migrated is obtained according to the identification information of the user to be migrated；

The adjoining NF for notifying the first NF, by the address of the first NF of user-association to be migrated described in the adjacent NF Information update is the address information of the 2nd NF.

In one embodiment, the processor is also used to execute following operation:

The adjoining NF for notifying the first NF, by the address of the first NF of user-association to be migrated described in the adjacent NF Information update is transmission user's control face migration response after the address information of the 2nd NF, the user's control face migration Response carries the information that the migration of user's control face is completed.

The embodiment of the present invention also provides a kind of computer readable storage medium, is stored with computer executable instructions, described Computer executable instructions are used to execute the implementation method of control plane resource migration as shown in Figure 5.

The embodiment of the present invention also provides a kind of computer readable storage medium, is stored with computer executable instructions, described Computer executable instructions are used to execute the implementation method of control plane resource migration as shown in Figure 7.

The embodiment of the present invention also provides a kind of computer readable storage medium, is stored with computer executable instructions, described Computer executable instructions are used to execute the implementation method of control plane resource migration as shown in Figure 8.

In the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (ROM, Read- Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. The various media that can store program code.

Obviously, it is logical to should be understood that the module of the above-mentioned embodiment of the present invention or step can be used by those skilled in the art Computing device realizes that they can be concentrated on a single computing device, or be distributed in multiple computing device institutes group At network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are deposited Storage is performed by computing device in the storage device, and in some cases, can be to be different from sequence execution institute herein The step of showing or describing, perhaps they are fabricated to integrated circuit modules or by the multiple modules or step in them Suddenly single integrated circuit module is fabricated to realize.In this way, the embodiment of the present invention is not limited to any specific hardware and software In conjunction with.

Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.

Claims (38)

1. a kind of implementation method of control plane resource migration, comprising:

Network function repository functional entity NRF determines the user's control face resource of migration first network functional entity NF；

2nd NF of the NRF selection and the first NF same type；

The NRF to the 2nd NF send user's control face migration request, user's control face migration request carry described in The address information of first NF and the identification information of user to be migrated.

2. the method as described in claim 1, which is characterized in that the NRF sends user's control face to the 2nd NF and migrates After request, further includes:

The NRF receives the user's control face migration response that the 2nd NF is sent, and the user's control face migration response carries The information that the migration of user's control face is completed；

The NRF sends user's control face to the first NF and migrates completion notice, and the user's control face migrates completion notice Carry the identification information of the address information of the 2nd NF and the user that has moved.

3. the method as described in claim 1, which is characterized in that the NRF determines the user's control face resource of the first NF of migration, Include:

The NRF receives the information on load that the first NF is sent, and the whole of the first NF of migration is determined according to the information on load Or certain customers' control plane resource；Or

What the adjoining NF that the NRF receives the first NF was sent reports information, reports information to determine migration first according to described All or part of user's control face resource of NF；Or

The connected NF of the NRF monitoring, all or part of user's control face resource of the first NF of migration is determined according to monitoring information； Or

The NRF receives the migration instruction of network management, determines all or part of user's control face resource of the first NF of migration.

4. the method as described in claim 1, which is characterized in that the 2nd NF of the NRF selection and the first NF same type, Include:

The NRF according at least one of information on load, location information and the slice information of the first NF, selection with it is described 2nd NF of the first NF same type.

5. the method as described in any one of Claims 1 to 4, which is characterized in that

The address information of first NF is indicated by one of following: full name domain name FQDN, uniform resource position mark URL, internet Interconnection protocol IP address；

The identification information of the user to be migrated is the identification information of user group, the identification information of the user group by it is following it One indicates: group mark, IMSI sections of international mobile subscriber identity, conversation management functional entity SMF mark.

6. the method as described in any one of Claims 1 to 4, which is characterized in that the first NF and the 2nd NF is as follows One of: SMF, access management function entity A MF, uniform data management entity UDM, policy control functions entity PCF.

7. a kind of implementation method of control plane resource migration, comprising:

Third network functional entity NF determines the user's control face resource of the first NF of migration, and it is real to store library facility by network function 2nd NF of body NRF selection and the first NF same type；Wherein, the 3rd NF is the adjoining NF of the first NF；

3rd NF sends user's control face migration request to the 2nd NF, and user's control face migration request carries institute State the address information of the first NF and the identification information of user to be migrated.

8. the method for claim 7, which is characterized in that the 3rd NF sends user's control face to the 2nd NF and moves It moves after request, the method also includes:

3rd NF receives the user's control face migration response that the 2nd NF is sent, and the user's control face migration response is taken The information completed with the migration of user's control face；

3rd NF sends user's control face to the first NF and migrates completion notice, and the user's control face migration is completed logical Know the identification information of the address information for carrying the 2nd NF and the user that has moved.

9. the method for claim 7, which is characterized in that the 3rd NF determines the user's control face money of the first NF of migration Source, comprising:

3rd NF receives the information on load that the first NF is sent, and determines that the first NF's of migration is complete according to the information on load Portion or certain customers' control plane resource；Or

3rd NF monitors the first NF, and all or part of user's control face of the first NF of migration is determined according to monitoring information Resource；Or

3rd NF receives the migration instruction of network management, determines all or part of user's control face resource of the first NF of migration.

10. the method for claim 7, which is characterized in that described to pass through NRF selection and the of the first NF same type Two NF, comprising:

3rd NF sends the request of the 2nd NF of discovery to NRF；

3rd NF receives the response of the NRF, and the address letter of selected 2nd NF of the NRF is carried in the response Breath.

11. the method as described in any one of claim 7~10, which is characterized in that

The address information of first NF is indicated by one of following: full name domain name FQDN, uniform resource position mark URL, internet Interconnection protocol IP address；

The identification information of the user to be migrated is the identification information of user group, the identification information of the user group by it is following it One indicates: group mark, IMSI sections of international mobile subscriber identity, conversation management functional entity SMF mark.

12. the method as described in any one of claim 7~10, which is characterized in that the first NF, the 2nd NF and third NF is one of following: SMF, access management function entity A MF, uniform data management entity UDM, policy control functions entity PCF.

13. a kind of implementation method of control plane resource migration, comprising:

Second network functional entity NF receives user's control face migration request, and user's control face migration request carries the first NF Address information and user to be migrated identification information；

2nd NF obtains the control plane resource information of the user to be migrated according to the identification information of the user to be migrated；

2nd NF notifies the adjoining NF of the first NF, by the first NF of user-association to be migrated described in the adjacent NF Address information be updated to the address information of the 2nd NF.

14. method as claimed in claim 13, which is characterized in that the 2nd NF notifies the adjoining NF of the first NF, will The address information of first NF of user-association to be migrated described in the adjacent NF be updated to the 2nd NF address information it Afterwards, further includes:

2nd NF sends the migration response of user's control face, and the user's control face migration response carries the migration of user's control face The information of completion.

15. method as claimed in claim 13, which is characterized in that the 2nd NF believes according to the mark of the user to be migrated Breath obtains the control plane resource information of the user to be migrated, comprising:

2nd NF sends to structural data storage entity SDSF and obtains user information request, and the acquisition user information is asked Seek the identification information for carrying the user to be migrated；

2nd NF receives the acquisition user information response that the SDSF is sent, and the acquisition user information responds described in carrying The control plane resource information of user to be migrated.

16. the method as described in claim 13 or 15, which is characterized in that the control plane resource information packet of the user to be migrated It includes one of following:

User context information；

User context information and protocol Data Unit PDU session information；

User context information, PDU session information and service quality and flow control information.

17. method as claimed in claim 13, which is characterized in that the 2nd NF notifies the adjoining NF of the first NF, will The address information of first NF of user-association to be migrated described in the adjacent NF is updated to the address information of the 2nd NF, packet It includes:

2nd NF notifies the adjoining NF of the first NF, by the first NF of user-association to be migrated described in the adjacent NF IP address be updated to the IP address of the 2nd NF, alternatively,

2nd NF notifies the adjoining NF of the first NF, by the first NF of user-association to be migrated described in the adjacent NF FQDN or the corresponding IP address of URL be updated to the IP address of the 2nd NF.

18. the method as described in any one of claim 13~15, which is characterized in that the first NF and the 2nd NF is such as It is one of lower: conversation management functional entity SMF, access management function entity A MF, uniform data management entity UDM, policy control function It can entity PCF.

19. a kind of realization device of control plane resource migration, is applied to network function repository functional entity NRF, feature exists In, comprising:

First determining module, for determining the user's control face resource of migration first network functional entity NF；

Selecting module, for selecting and the 2nd NF of the first NF same type；

First sending module, for sending user's control face migration request to the 2nd NF, the user's control face migration is asked It asks and carries the address information of the first NF and the identification information of user to be migrated.

20. device as claimed in claim 19, which is characterized in that further include:

First receiving module, the user's control face migration response sent for receiving the 2nd NF, the user's control face is moved It moves response and carries the information that the migration of user's control face is completed；

First sending module is also used to send user's control face migration completion notice, user's control to the first NF Migration completion notice in face processed carries the identification information of the address information of the 2nd NF and the user that has moved.

21. device as claimed in claim 19, which is characterized in that first determining module is used for:

The information on load that the first NF is sent is received, determines that all or part of of the first NF of migration uses according to the information on load Family control plane resource；Or

Receive the adjoining NF transmission of the first NF reports information, according to the whole for reporting information to determine the first NF of migration Or certain customers' control plane resource；Or

The connected NF of monitoring, all or part of user's control face resource of the first NF of migration is determined according to monitoring information；Or

The migration instruction for receiving network management, determines all or part of user's control face resource of the first NF of migration.

22. a kind of network function repository functional entity, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

Determine the user's control face resource of the first NF of migration；

2nd NF of selection and the first NF same type；

User's control face migration request is sent to the 2nd NF, user's control face migration request carries the first NF's The identification information of address information and user to be migrated.

23. network function repository functional entity as claimed in claim 22, which is characterized in that the processor is also used to hold The following operation of row:

The user's control face migration response that the 2nd NF is sent is received, the user's control face migration response carries user's control The information that face migration is completed；

User's control face is sent to the first NF and migrates completion notice, and the user's control face migrates described in completion notice carrying The identification information of the address information of 2nd NF and the user that has moved.

24. a kind of realization device of control plane resource migration is applied to the 3rd NF characterized by comprising

It is real to store library facility by network function for determining the user's control face resource of the first NF of migration for second determining module 2nd NF of body NRF selection and the first NF same type；Wherein, the 3rd NF is the adjoining NF of the first NF；

Second sending module, for sending user's control face migration request to the 2nd NF, the user's control face migration is asked It asks and carries the address information of the first NF and the identification information of user to be migrated.

25. device as claimed in claim 24, which is characterized in that further include:

Second receiving module, the user's control face migration response sent for receiving the 2nd NF, the user's control face is moved It moves response and carries the information that the migration of user's control face is completed；

Second sending module is also used to send user's control face migration completion notice, user's control to the first NF Migration completion notice in face processed carries the identification information of the address information of the 2nd NF and the user that has moved.

26. device as claimed in claim 24, which is characterized in that second determining module is used for:

The information on load that the first NF is sent is received, determines that all or part of of the first NF of migration uses according to the information on load Family control plane resource；Or

The first NF is monitored, all or part of user's control face resource of the first NF of migration is determined according to monitoring information；Or

The migration instruction for receiving network management, determines all or part of user's control face resource of the first NF of migration.

27. device as claimed in claim 24, which is characterized in that second determining module is used for:

The request of the 2nd NF of discovery is sent to NRF；

The response of the NRF is received, the address information of selected 2nd NF of the NRF is carried in the response.

28. a kind of network functional entity, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

The user's control face resource for determining the first NF of migration passes through network function repository functional entity NRF selection and described the 2nd NF of one NF same type；

User's control face migration request is sent to the 2nd NF, user's control face migration request carries the first NF's The identification information of address information and user to be migrated.

29. network functional entity as claimed in claim 28, which is characterized in that the processor is also used to execute following behaviour Make:

The user's control face migration response that the 2nd NF is sent is received, the user's control face migration response carries user's control The information that face migration is completed；

User's control face is sent to the first NF and migrates completion notice, and the user's control face migrates described in completion notice carrying The identification information of the address information of 2nd NF and the user that has moved.

30. a kind of realization device of control plane resource migration is applied to the 2nd NF characterized by comprising

Third receiving module, for receiving user's control face migration request, user's control face migration request carries the first NF Address information and user to be migrated identification information；

Module is obtained, the control plane resource for obtaining the user to be migrated according to the identification information of the user to be migrated is believed Breath；

Notification module, for notifying the adjoining NF of the first NF, by of user-association to be migrated described in the adjacent NF The address information of one NF is updated to the address information of the 2nd NF.

31. device as claimed in claim 30, which is characterized in that further include:

Third sending module, for sending user's control face migration completion notice, the user's control face migration completion notice is taken The identification information of address information with the 2nd NF and the user that has moved.

32. device as claimed in claim 30, which is characterized in that the acquisition module is used for:

It is sent to structural data storage entity SDSF and obtains user information request, described in the acquisition user information request carrying The identification information of user to be migrated；

The acquisition user information response that the SDSF is sent is received, the acquisition user information response carries the user to be migrated Control plane resource information.

33. device as claimed in claim 30, which is characterized in that the notification module is used for:

The adjoining NF for notifying the first NF, more by the IP address of the first NF of user-association to be migrated described in the adjacent NF It is newly the IP address of the 2nd NF, alternatively,

The adjoining NF for notifying the first NF, by the FQDN of the first NF of user-association to be migrated described in the adjacent NF or The corresponding IP address of URL is updated to the IP address of the 2nd NF.

34. a kind of network functional entity, comprising:

Processor；

For storing the memory of the processor-executable instruction；

The transmitting device of information transmit-receive communication is carried out for the control according to the processor；

Wherein, the processor is for performing the following operations:

Receive user's control face migration request, user's control face migration request carries the address information of the first NF and to be migrated The identification information of user；

The control plane resource information of the user to be migrated is obtained according to the identification information of the user to be migrated；

The adjoining NF for notifying the first NF, by the address information of the first NF of user-association to be migrated described in the adjacent NF It is updated to the address information of the 2nd NF.

35. network functional entity as claimed in claim 34, which is characterized in that the processor is also used to execute following behaviour Make:

The adjoining NF for notifying the first NF, by the address information of the first NF of user-association to be migrated described in the adjacent NF It is updated to after the address information of the 2nd NF, sends the migration response of user's control face, the user's control face migration response The information that the user's control face migration of carrying is completed.

36. a kind of computer readable storage medium, is stored with computer executable instructions, the computer executable instructions are used for Perform claim requires the implementation method of the control plane resource migration of any one of 1-6.

37. a kind of computer readable storage medium, is stored with computer executable instructions, the computer executable instructions are used for Perform claim requires the implementation method of the control plane resource migration of any one of 7-13.

38. a kind of computer readable storage medium, is stored with computer executable instructions, the computer executable instructions are used for Perform claim requires the implementation method of the control plane resource migration of any one of 13-18.