CN111200857A

CN111200857A - User route updating method and device

Info

Publication number: CN111200857A
Application number: CN201811378541.2A
Authority: CN
Inventors: 唐廷芳; 艾明; 王胡成
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-11-19
Filing date: 2018-11-19
Publication date: 2020-05-26
Anticipated expiration: 2038-11-19
Also published as: CN111200857B; WO2020103773A1; CN116669140A

Abstract

The invention relates to the technical field of wireless communication, in particular to a user route updating method and device, which are used for solving the problem that no scheme for realizing automatic updating of user route exists in the prior art. The user equipment receives first information which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route updating; and initiating a de-registration process after receiving the first information, and initiating a registration process after the de-registration process is completed. After the user equipment route is updated, the connection with the unified data management functional entity before updating is released by the mode that the user equipment initiates the de-registration process, and the updating of the user route in the core network is realized by the mode that the user equipment initiates the registration process, so that the system performance is further improved.

Description

User route updating method and device

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a user routing update method and device.

Background

At present, SUPI (Subscription persistent Identifier) in a 5G system is not transmitted over an air interface, and an initial registration request message for interaction between a UE (User Equipment) and a network employs sui (Subscription conditional Identifier), where sui is encrypted SUPI, and both sui and SUPI are used to identify a User. In the Authentication process, the AUSF (Authentication Unit selection Function) entity returns SUPI to the Access and mobility management Function (Access and mobility management Function) entity, in the subsequent flow, the UE is identified by using SUPI inside the 5G core network, for example, the access and mobility Management Function entity selects a Unified Data Management Function (Unified Data Management Function) entity according to SUPI, the session Management Function (session Management Function) entity selects a Unified Data Management Function entity according to SUPI, and at the air interface, the UE is identified by using Temporary Identifier (5G-GUTI (5G global uniform Temporary Identifier, 5G user global Unique Temporary Identifier)) or 5G-S-TMSI (5G-5G S-Temporary Mobile subscriber Identifier)). The SUCI includes a routing field for routing the UE to a corresponding unified data management function entity, and particularly, when a large operator has a plurality of sub-unified data management function entities, the unified data management function entity is often determined by routing assistance.

At present, according to the needs of operators, there is a scenario that a user database of a part of users needs to be moved from an accessed unified data management function entity to another unified data management function entity. Therefore, how to implement automatic updating of user routing becomes an urgent problem to be solved.

Disclosure of Invention

The invention provides a user route updating method and device, which are used for solving the problem that no scheme for realizing automatic updating of user routes exists in the prior art.

Based on the foregoing problem, in a first aspect, an embodiment of the present invention provides a user routing update method, including:

the method comprises the steps that user equipment receives first information which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route updating;

and the user equipment initiates a de-registration process after receiving the first information and initiates a registration process after the de-registration process is finished.

Optionally, the first information includes part or all of the following information:

updated routing information, an indication indicating whether a user equipment response is required, an indication indicating that a user equipment initiation of a de-registration procedure and a registration procedure is required.

Optionally, the initiating, by the user equipment, a registration procedure includes:

the user equipment determines SUCI containing the updated routing information according to the updated routing information;

and the user equipment initiates an initial registration process according to the SUCI containing the updated routing information.

In a second aspect, an embodiment of the present invention provides a user routing update method, where the method includes:

the unified data management functional entity sends first information for informing the user equipment of triggering routing update to the user equipment through the access and mobility management functional entity, so that the user equipment initiates a de-registration process after receiving the first information and initiates a registration process after the de-registration process is completed.

updated routing information, an indication indicating whether a user equipment response is required, an indication indicating that a user equipment initiation of a de-registration and registration procedure is required.

In a third aspect, an embodiment of the present invention provides a user equipment, including: a processor, a memory, and a transceiver;

wherein the processor is configured to read a program in the memory and execute:

receiving first information which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route updating;

and initiating a de-registration process after receiving the first information, and initiating a registration process after the de-registration process is completed.

Optionally, the processor is specifically configured to:

determining SUCI containing the updated routing information according to the updated routing information; and initiating an initial registration process according to the SUCI containing the updated routing information.

In a fourth aspect, an embodiment of the present invention provides a unified data management functional entity, including: a processor, a memory, and a transceiver;

and sending first information for informing the user equipment of triggering routing update to the user equipment through an access and mobility management functional entity so that the user equipment initiates a de-registration process after receiving the first information and initiates a registration process after the de-registration process is completed.

In a fifth aspect, an embodiment of the present invention provides a user equipment, including:

a receiving module, configured to receive first information, which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route update;

and the processing module is used for initiating a de-registration process after receiving the first information and initiating a registration process after the de-registration process is finished.

Optionally, the processing module is specifically configured to:

determining SUCI containing the updated routing information according to the updated routing information;

and initiating an initial registration process according to the SUCI containing the updated routing information.

In a sixth aspect, an embodiment of the present invention provides a unified data management functional entity, including:

a sending module, configured to send, to the ue through an access and mobility management functional entity, first information for notifying the ue to trigger a routing update, so that the ue initiates a de-registration procedure after receiving the first information, and initiates a registration procedure after the de-registration procedure is completed.

In a seventh aspect, an embodiment of the present invention provides a computer-readable medium, on which a computer program is stored, where the computer program is used to implement the steps of the method in the first aspect or the steps of the method in the second aspect when the computer program is executed by a processor.

After receiving the first information sent by the access and mobility management functional entity, the user equipment determines the routing update of the user equipment; the user equipment initiates a de-registration process, and initiates a registration process after the de-registration process is completed. After the user equipment route is updated, the connection with the unified data management functional entity before updating is released by the mode that the user equipment initiates the de-registration process, and the updating of the user route in the core network is realized by the mode that the user equipment initiates the registration process, so that the system performance is further improved.

In an eighth aspect, an embodiment of the present invention provides a user routing update method, where the method includes:

the user equipment receives second information which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route updating;

and the user equipment sends a registration updating request containing a first route updating instruction to the access and mobility management functional entity after receiving the second information, so that the access and mobility management functional entity performs unified data management functional entity selection after receiving the first route updating instruction.

Optionally, the first route update indication is used to indicate that the registration update request is used for route update.

Optionally, the first route update instruction further includes updated route information.

In a ninth aspect, an embodiment of the present invention provides a user routing update method, where the method includes:

an access and mobility management functional entity receives a registration updating request which is sent by user equipment and contains a first route updating indication;

and the access and mobility management functional entity selects a unified data management functional entity.

Optionally, after the accessing and mobility management functional entity performs unified data management functional entity selection, the method further includes:

the access and mobility management functional entity disassociates from the unified data management functional entity accessed prior to the update.

Optionally, the disassociating the access and mobility management functional entity from the unified data management functional entity accessed before the update includes:

and the access and mobility management functional entity disassociates the unified data management functional entity accessed before updating through a specific de-registration process or a de-subscription process.

Optionally, after the accessing and mobility management functional entity performs unified data management functional entity selection according to the first route update indication, the method further includes:

and the access and mobility management functional entity determines a target unified data management functional entity accessed by the user equipment after updating and associates the target unified data management functional entity with the target unified data management functional entity.

Optionally, the associating, by the access and mobility management function entity, to the target unified data management function includes:

and the access and mobility management functional entity is associated to the target unified data management function through a specific registration process or a specific subscription process.

Optionally, the method further includes:

and the access and mobility management functional entity sends a second route updating instruction to a session management functional entity so that the session management functional entity determines a target unified data management functional entity accessed by the user equipment after route updating after receiving the second route updating instruction.

Optionally, after receiving the second route update instruction, the session management function entity determines a target unified data management function entity to which the user equipment is accessed after the route update, and further includes:

and the session management functional entity is disassociated from the unified data management functional entity accessed before updating and is associated to the selected target unified data management functional entity.

In a tenth aspect, an embodiment of the present invention provides a user equipment, including: a processor, a memory, and a transceiver;

receiving second information which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route updating;

and after receiving the second information, sending a registration updating request containing a first route updating instruction to the access and mobility management functional entity, so that the access and mobility management functional entity performs unified data management functional entity selection after receiving the first route updating instruction.

In an eleventh aspect, an embodiment of the present invention provides an access and mobility management functional entity, including: a processor, a memory, and a transceiver;

receiving a registration updating request containing a first route updating indication sent by user equipment;

and selecting a unified data management functional entity.

Optionally, the processor is further configured to:

after the unified data management function entity selection is carried out, the unified data management function entity accessed before the updating is associated with the unified data management function entity.

Optionally, the processor is specifically configured to:

and releasing the association with the unified data management function entity accessed before updating through a specific de-registration process or a de-subscription process.

Optionally, the processor is further configured to:

and after the unified data management functional entity is selected according to the first route updating indication, determining a target unified data management functional entity accessed by the user equipment after updating, and associating the target unified data management functional entity with the target unified data management functional entity.

Optionally, the processor is specifically configured to:

associating to the target unified data management function through a specific registration flow or subscription flow.

Optionally, the processor is further configured to:

and sending a second route updating instruction to a session management functional entity so that the session management functional entity determines a target unified data management functional entity accessed by the user equipment after updating after receiving the second route updating instruction.

In a twelfth aspect, an embodiment of the present invention provides a user equipment, including:

a second receiving module, configured to receive second information, which is sent by the unified data management functional entity through the access and mobility management functional entity and used for notifying the user equipment of route update;

and the second sending module is used for sending a registration updating request containing a first route updating instruction to the access and mobility management functional entity after receiving the second information so that the access and mobility management functional entity performs unified data management functional entity selection after receiving the first route updating instruction.

In a thirteenth aspect, an embodiment of the present invention provides an access and mobility management functional entity, including:

a third receiving module, configured to receive a registration update request including a first route update instruction sent by a user equipment;

and the selection module is used for selecting the unified data management functional entity.

Optionally, the selecting module is further configured to:

Optionally, the selection module is specifically configured to:

Optionally, the selecting module is further configured to:

Optionally, the selection module is specifically configured to:

Optionally, the selecting module is further configured to:

In a fourteenth aspect, embodiments of the present invention provide a computer-readable medium on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method according to the eighth aspect described above, or the steps of the method according to the ninth aspect described above.

After receiving the second information sent by the access and mobility management functional entity, the user equipment determines the routing update of the user equipment; the user equipment initiates a registration update request. After the user equipment route is updated, the unified data management function entity is reselected in the core network by the way that the user equipment initiates the registration update request, so that the updating of the user route in the core network is realized, and the system performance is further improved.

Drawings

FIG. 1 is a system architecture diagram according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first user route updating system according to an embodiment of the present invention;

fig. 3 is a flowchart of a first method for updating a user route according to the embodiment of the present invention;

fig. 4 is a flowchart illustrating a second method for performing a user route update according to a second embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first ue according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a first unified data management functional entity according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second ue according to an embodiment of the present invention;

FIG. 8 is a block diagram illustrating a second example of a unified data management function entity according to the present invention;

fig. 9 is a flowchart of a first user route updating method according to the embodiment of the present invention;

fig. 10 is a flowchart of a second user route updating method according to the embodiment of the present invention;

fig. 11 is a schematic structural diagram of a second user route updating system according to the embodiment of the present invention;

FIG. 12 is a diagram illustrating registration types according to an embodiment of the present invention;

fig. 13 is a flowchart illustrating a third method for updating a user route according to the embodiment of the present invention;

fig. 14 is a flowchart illustrating a fourth method for performing a user route update according to the embodiment of the present invention;

fig. 15 is a schematic structural diagram of a third ue according to the embodiment of the present invention;

fig. 16 is a schematic structural diagram of a first access and mobility management functional entity according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a fourth ue according to the embodiment of the present invention;

fig. 18 is a schematic structural diagram of a second access and mobility management functional entity according to an embodiment of the present invention;

fig. 19 is a third method for updating user routes according to the embodiment of the present invention;

fig. 20 is a fourth method for updating user routes according to the embodiment of the present invention.

Detailed Description

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

(1) In the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning.

(2) In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

(3) "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The network architecture and the service scenario described in the embodiment of the present invention are for more clearly illustrating the technical solution of the embodiment of the present invention, and do not form a limitation on the technical solution provided in the embodiment of the present invention, and it can be known by those skilled in the art that the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be described in further detail below with reference to the accompanying drawings.

Fig. 1 illustrates a schematic diagram of a system architecture suitable for an embodiment of the present invention, as shown in fig. 1, in a future 5G system architecture, a terminal 101 may communicate with a core network via an access network entity 102, and the terminal may refer to a UE, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent or a user equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network, etc. For convenience of description, fig. 1 only illustrates 1 terminal, and in an actual network, multiple terminals may coexist, which is not described herein again.

AN Access Network (AN) entity 102, which may also be referred to as a Radio Access Network (R) entity, hereinafter referred to as AN Access Network entity (R) AN entity, is mainly responsible for providing a wireless connection for the terminal 101, and ensuring reliable transmission of uplink and downlink data of the terminal 101. The Access network entity 102 may be a next generation Base Station (gNB) in a 5G System, which may be a Base Transceiver Station (BTS) in a Global System for mobile communications (GSM) System or a Code Division Multiple Access (CDMA) System, a Base Station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) System, an evolved Base Station (eNB or eNodeB) in a Long Term Evolution (LTE) System, or the like.

Session Management Function, Session Management Function Entity 103, which may be configured to perform a part of functions of a Mobility Management Entity (MME) in the LTE system, and is mainly responsible for establishing a Session, managing a Session, and the like for terminal 101. A suitable User Plane Function (UPF) entity may be selected for the terminal 101 according to the location information of the terminal 101.

The user plane functional entity 104 is a functional network element of the user plane of the terminal 101, and has main functions including packet routing and forwarding, Quality of Service (QoS) processing of user plane data, and the like.

The access and mobility management functional entity 105 mainly includes a termination point of a radio access network control plane, a termination point of non-access signaling, mobility management, lawful interception, access authorization or authentication, and the like.

A Policy Control Function (PCF) entity 106 is mainly responsible for the functions of establishing, releasing, and changing the transmission path of the user plane.

The service function entity 107 is authenticated, and its main functions include user authentication and the like.

The unified data management functional entity 108 is mainly responsible for managing subscription data of the user and the like.

The Data Network (DN) 109 may refer to a Network providing services for the terminal 101, for example, some DNs may provide an internet function for the terminal 101, and some DNs may provide a multimedia message function for the terminal 101.

It should be noted that the above system architecture is only an example of the system architecture applicable to the embodiment of the present invention, and the system architecture applicable to the embodiment of the present invention may also add other entities or reduce part of the entities compared to the system architecture shown in fig. 1.

When updating the user route, the embodiment of the invention selects the network element inside the core network, for example, the access and mobility management functional entity selects the unified data management functional entity, and the session management functional entity selects the unified data management functional entity; after determining that a unified data management function accessed by user equipment needs to be changed, the embodiment of the invention provides a method for automatically updating a user route.

As shown in fig. 2, a first user route updating system according to an embodiment of the present invention includes: user equipment 10 and a unified data management function entity 11.

The user equipment 10 is configured to receive first information, which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route update; initiating a de-registration process after receiving the first information, and initiating a re-registration process after the de-registration process is completed;

a unified data management functional entity 11, configured to send, to the ue through an access and mobility management functional entity, first information for notifying the ue to trigger a routing update, so that the ue initiates a de-registration procedure after receiving the first information, and initiates a registration procedure after the de-registration procedure is completed.

The unified data management functional entity sends first information to the access and mobility management functional entity after determining that the routing of the user equipment needs to be updated, and the access and mobility management functional entity forwards the first information to the user equipment after receiving the first information.

It should be noted that, in the embodiment of the present invention, the UE route update may also be referred to as Routing ID route update on the UE side, and may also be referred to as Routing ID route update inside the core network, and may also be referred to as a change of the unified data management function entity, where both of them may indicate that the unified data management function entity accessed by the UE changes.

In the embodiment of the present invention, the Routing information may also be referred to as Routing ID information on the user equipment side, and may be referred to as Routing ID information inside the core network; or the routing information may also be other information representing a unified data management function entity accessed by the user equipment.

After receiving first information sent by an access and mobility management functional entity, user equipment initiates a de-registration and registration process;

specifically, the user equipment initiates a deregistration process according to the following modes:

the UE initiates a de-registration process through 5G-GUTI acquired by initiating route updating, and triggers the core network side to delete the 5GMM and 5GSM contexts of the UE and the associated information thereof including the information associated with the first uniform data management function entity and the like established before the route updating, namely the core network side deletes the context information and the associated information related to the SUPI corresponding to the route before the updating.

The user equipment initiates a registration process according to the following modes:

the user equipment determines SUCI containing the updated routing information according to the updated routing information; and the user equipment initiates an initial registration process through the SUCI containing the updated routing information.

When the method provided by the embodiment of the invention is adopted, the unified data management functional entity needs to send the updated routing information to the user equipment through the first information.

It should be noted that, in the process of initiating initial registration, the user equipment in the embodiment of the present invention adopts the sui containing the updated routing information; in addition, the initial registration process performed by the user equipment using the sui including the updated routing information is the same as the initial registration process initiated by the user equipment in the prior art, and is not described in detail herein.

The user route updating method provided by the embodiment of the invention is suitable for updating the user route in the registration process of the user equipment, and is also suitable for updating the user route after the registration of the user equipment is finished, and the following description is respectively combined with different processes.

Firstly, user routing updating is carried out in the registration process of user equipment.

With reference to fig. 3, a flow of performing user route update in a user equipment registration process according to an embodiment of the present invention is described.

The unified data management functional entity selected by the authentication service functional entity before the route is updated is assumed to be a first unified data management functional entity, and the unified data management functional entity accessed by the user equipment after the route is updated is assumed to be a second unified data management functional entity.

Step 301, user equipment initiates an initial registration request; wherein, the user identifier carried in the initial registration request is SUCI.

Step 302, the access and mobility management functional entity selects a proper authentication service functional entity according to the PLMN (Public Land mobile network) and the routing information in the SUCI.

Step 303, the network side authenticates the user, in the authentication and authorization process, the authentication service functional entity selects a proper unified data management functional entity according to the PLMN and routing information in the SUCI, and after the authentication process is completed, the authentication service functional entity returns the SUPI information of the user to the access and mobility management functional entity. The access and mobility management functions establish a 5GMM context for the user equipment indexed by SUPI.

And step 304, the access and mobility management functional entity and the first unified data management functional entity complete user registration, acquire subscription data for user subscription and other operations according to the SUPI information, and update the 5GMM context of the UE.

Step 305, the first unified data management functional entity determines that the route of the user equipment needs to be updated, and the first unified data management functional entity sends first information for notifying the user equipment of triggering the route update to the access and mobility management functional entity;

it should be noted that, after the first unified data management functional entity sends the first information to the access and mobility management functional entity, the access and mobility management functional entity needs to forward the first information to the user equipment.

Step 306, the access and mobility management functional entity allocates 5G-GUTI for the user equipment, stores the relevant information in the 5GMM context of the UE, and sends a registration acceptance message containing the 5G-GUTI and the first information to the UE to complete the registration process;

the first information includes updated routing information, an indication indicating whether a response of the user equipment is required, and an indication indicating that the user equipment is required to initiate a de-registration and a registration process.

Step 307, the user equipment initiates a de-registration process after receiving a registration acceptance message containing the first information;

specifically, the information associated with the first unified data management function entity before updating is deleted from the core network of the user equipment; e.g. 5GMM context, 5GSM context of the user equipment.

Step 308, the user equipment initiates an initial registration process by using the SUCI containing the updated routing information, and establishes a 5GMM context associated with the second unified data management function entity;

it should be noted that, when the user equipment needs to establish a session, a corresponding session is established for the user equipment and associated with the second unified data management function entity.

And secondly, updating the user route after the user equipment completes registration.

With reference to fig. 4, a flow of updating a user route after the user equipment completes registration according to an embodiment of the present invention is described.

The unified data management function entity accessed by the user equipment before route updating is assumed to be a first unified data management function entity, and the unified data management function entity accessed by the user equipment after route updating is assumed to be a second unified data management function entity.

Step 401, the first unified data management functional entity sends first information for notifying the user equipment to trigger the routing update to the access and mobility management functional entity;

after determining a unified data management functional entity which needs to update the user equipment access, the first unified data management functional entity sends the first information to the access and mobility management functional entity; for example, if an operator needs to move a user database of the user equipment, the first unified data management functional entity sends the first information for notifying the user equipment of triggering the routing update to the access and mobility management functional entity.

Step 402, the access and mobility management functional entity forwards the first information to the user equipment;

specifically, the access and mobility management functional entity forwards the first information to the user equipment in a NAS transport message manner;

Step 403, the user equipment records the updated routing information and returns a response message to the access and mobility management functional entity;

when the access and mobility management functional entity forwards the first information to the user equipment in a DL NAS transport message mode, the user equipment returns a response to the access and mobility management functional entity through UL NAS transport.

Step 404, the access and mobility management functional entity forwards the response message returned by the user equipment to the first unified data management functional entity.

Step 405, the user equipment initiates a de-registration process;

specifically, the user equipment initiates a de-registration process, wherein the de-registration process carries 5G-GUTI, the access and mobility management functional entity finds out the context and the related information related to the user equipment through the 5G-GUTI, further, the access and mobility management functional entity deletes the information related to the user equipment and the first uniform data management functional entity before updating, and if the user equipment already establishes a session, the access and mobility management functional entity triggers the related session management functional entity recorded in the context thereof to delete the information related to the user equipment. I.e. the relevant information of the user equipment in the core network is deleted, including for example the 5GMM context, 5GSM context of the user equipment.

Step 406, the user equipment initiates an initial registration process by using the SUCI containing the updated routing information, and establishes a 5GMM context associated with the second unified data management function entity;

As shown in fig. 5, a first user equipment according to an embodiment of the present invention includes: a processor 500, a memory 501, a transceiver 502, and a bus interface.

The processor 500 is responsible for managing the bus architecture and general processing, and the memory 501 may store data used by the processor 1000 in performing operations. The transceiver 503 is used to receive and transmit data under the control of the processor 500.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 500 and various circuits of memory represented by memory 501 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 501 may store data used by the processor 500 in performing operations.

The processes disclosed in the embodiments of the present invention may be applied to the processor 500, or implemented by the processor 500. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 500. The processor 500 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 501, and the processor 500 reads the information in the memory 501, and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 500 is configured to read the program in the memory 501 and execute:

Optionally, the processor 500 is specifically configured to:

As shown in fig. 6, a first unified data management functional entity according to the embodiment of the present invention includes: a processor 600, a memory 601, a transceiver 602, and a bus interface.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 601 may store data used by the processor 1000 in performing operations. The transceiver 603 is used for receiving and transmitting data under the control of the processor 600.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 600 and various circuits of memory represented by memory 601 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 600 is responsible for managing the bus architecture and general processing, and the memory 601 may store data used by the processor 600 in performing operations.

The processes disclosed in the embodiments of the present invention may be applied to the processor 600, or implemented by the processor 600. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 600. The processor 600 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof that may implement or perform the methods, steps or logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 601, and the processor 600 reads the information in the memory 601 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 600 is configured to read the program in the memory 601 and execute:

As shown in fig. 7, a second user equipment according to an embodiment of the present invention includes:

a first receiving module 701, configured to receive first information, which is sent by a unified data management functional entity through an access and mobility management functional entity and used to notify the ue of a route update;

a first processing module 702, configured to initiate a de-registration procedure after receiving the first information, and initiate a registration procedure after the de-registration procedure is completed.

Optionally, the first processing module 702 is specifically configured to:

As shown in fig. 8, a second unified data management functional entity according to the embodiment of the present invention includes:

a first sending module 801, configured to send, to the ue through an access and mobility management functional entity, first information for notifying the ue to trigger a routing update, so that the ue initiates a de-registration procedure after receiving the first information, and initiates a registration procedure after the de-registration procedure is completed;

a second processing module 802, configured to control the sending module to send the first information.

Embodiments of the present invention provide a computer-readable medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method described above on the user equipment side, or tests the steps of the method described above by the unified data management function entity.

Based on the same inventive concept, the embodiment of the present invention provides a user route updating method, and because the method corresponds to the method of the user equipment side in the user route updating system of the embodiment of the present invention, and the principle of the method for solving the problem is similar to that of the system, the implementation of the method can refer to the implementation of the system, and repeated details are not repeated.

As shown in fig. 9, a first method for updating a user route according to an embodiment of the present invention includes:

step 901, a user equipment receives first information which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route updating;

step 902, the user equipment initiates a de-registration process after receiving the first information, and initiates a registration process after the de-registration process is completed.

As shown in fig. 10, a second method for updating a user route according to an embodiment of the present invention includes:

1001, determining routing update of user equipment by a unified data management functional entity;

step 1002, the unified data management function entity sends, to the ue, first information for notifying the ue to trigger a routing update through the access and mobility management function entity, so that the ue initiates a de-registration procedure after receiving the first information, and initiates a registration procedure after the de-registration procedure is completed.

As shown in fig. 11, a second user route updating system according to the embodiment of the present invention includes: user equipment 110, an access and mobility management function entity 111 and a unified data management function entity 112.

A unified data management function entity 112, configured to send, to the ue through an access and mobility management function entity, first information for notifying the ue to trigger a routing update, so that the ue initiates a registration update procedure after receiving the first information;

the user equipment 110 is configured to receive first information, which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route update; after receiving the first information, sending a registration updating request containing a first route updating indication to the access and mobility management functional entity, so that the access and mobility management functional entity performs unified data management functional entity selection after receiving the first route updating indication;

and the access and mobility management functional entity 111 is configured to receive a registration update request including a first route update instruction sent by the user equipment, and perform unified data management functional entity selection.

It should be noted that, in the embodiment of the present invention, the UE route update may also be referred to as a route update on the UE side, and the core network may also be referred to as a route update, and may also be referred to as a change of a unified data management function entity, where both the route update and the change of the unified data management function entity may indicate that a unified data management function entity accessed by the UE changes.

Specifically, when initiating a registration update operation, the user equipment in the embodiment of the present invention sends a registration update request including a first route update instruction to an access and mobility management functional entity; the first route updating indication is used for triggering the access and mobility management functional entity to select the unified data management functional entity.

Optionally, the first route update instruction is used to trigger the access and mobility management functional entity to perform unified data management functional entity selection and further perform route update when receiving the registration update request.

In an implementation, the first routing update indication information may be represented in the registration update request in the form of:

1. represented by an extended registration type.

Adding a registration type on the basis of the existing registration type, specifically adding a registration type of 'update parameter registration update'; when the registration type in the registration request message is an update parameter type, because various parameters capable of being updated exist; therefore, when this representation is adopted, it is also necessary to carry an indication that the updated parameter is a route in the registration update request.

For example, the existing registration types include an initial registration type, a mobile registration update type, a periodic registration update type, and an emergency registration type; expanding the registration type of 'updating parameter registration updating' on the basis of the existing registration type; as shown in fig. 12, three bits are used to indicate the registration type, where 000 indicates an initial registration type, 010 indicates a mobile registration update type, 011 indicates a periodic registration update type, 100 indicates an emergency registration type, and 111 indicates an update parameter registration update type.

When the bit indicating the registration type is 111, indicating that the current registration update request is used for updating the parameter; when the updated parameter carried in the registration update request is the indication of the route, the access and mobility management functional entity can determine that the registration update request is used for route update.

2. The first route updating indication information is represented by a specific parameter;

specifically, a specific parameter is carried in the registration update request, and when the registration update request includes the specific parameter, the registration update request is used for route update.

And after receiving a registration updating request which is sent by user equipment and contains a first route updating instruction, the access and mobility management functional entity selects the unified data management functional entity.

Specifically, the access and mobility management functional entity performs unified data management functional entity selection according to the SUPI corresponding to the user equipment.

In the embodiment of the invention, the access and mobility management functional entity records a unified data management functional entity accessed by user equipment before route updating, after the access and mobility management functional entity selects the unified data management functional entity according to SUPI, the recorded unified data management functional entity and the selected target unified data management functional entity are compared, and if the recorded unified data management functional entity is different from the target unified data management functional entity, the access and mobility management function determines that the accessed unified data management functional entity is changed.

It should be noted here that, after the unified data management function entity determines that the routing update of the user equipment needs to be triggered, the configuration parameters of the user equipment may be modified through the background, assuming that the user equipment is accessed to the first unified data management function entity before the routing update, and after determining that the routing update of the user equipment needs to be triggered, the unified data management function entity accessed by the user equipment may be modified to the second unified data management function entity; then, after receiving the registration update request sent by the ue, the access and mobility management functional entity determines that the unified data management functional entity accessed by the ue changes according to the unified data management functional entity selected by the SUPI of the ue as the second unified data management functional entity.

Optionally, after determining that the unified data management functional entity changes, the access and mobility management functional entity disassociates from the unified data management functional entity accessed before updating.

In implementation, the access and mobility management functional entities disassociate from the unified data management functional entity accessed before updating through a specific de-registration procedure or de-subscription procedure.

Optionally, the access and mobility management functional entity determines a target unified data management functional entity accessed by the updated user equipment according to the SUPI of the user equipment, and associates the target unified data management functional entity with the target unified data management function;

in implementation, the access and mobility management function entity is associated with the target unified data management function through a specific registration flow or a subscription flow, and because the access and mobility management function has context information related to the user equipment, association with the target unified data management function can be completed only by updating the binding between the access and mobility management function and the target unified data management function without acquiring the subscription data of the user equipment from the unified data management function. The access and mobility management functions may also, according to the registration procedure, retrieve subscription data for the user equipment from the target unified data management function and complete the associated subscription.

It should be noted that, after the access and mobility management functional entity is associated with the target unified data management functional entity, the access and mobility management functional entity changes the recorded unified data management functional entity into the target unified data management functional entity.

When route updating occurs after the user equipment establishes a session, after the access and mobility management functional entity and the unified data management functional entity accessed before updating are disassociated and associated to the target unified data management functional entity, the access and mobility management functional entity also needs to inform the session management functional entity of the user equipment route updating;

optionally, the access and mobility management functional entity sends a second route update instruction to the session management functional entity, so that the session management functional entity determines, after receiving the second route update instruction, a target unified data management functional entity to which the user equipment is accessed after route update, and disassociates from the unified data management functional entity accessed before update and from the selected target unified data management functional entity.

In implementation, the access and mobility management functional entity determines an associated session management functional entity according to the 5GMM context information of the user equipment, and sends a second route updating indication to the session management functional entity; wherein the second route update indication is for representing a route update of the user equipment;

correspondingly, after receiving the second route updating instruction, the session management functional entity selects a target unified data management functional entity according to the SUPI of the user equipment; comparing the recorded unified data management functional entity with the target unified data management functional entity, and determining that the unified data management function changes when the recorded unified data management functional entity is different from the target unified data management functional entity;

the second route updating instruction received by the session management functional entity may further include target unified data management function related information, and the session management functional entity may directly determine the target unified data management functional entity to which the updated user equipment is accessed according to the second route updating instruction; comparing the recorded unified data management functional entity with the target unified data management functional entity, and determining that the unified data management functional entity changes when the recorded unified data management functional entity is different from the target unified data management functional entity; the related information of the target unified data management function entity can be an IP address or identification information of the target unified data management function entity selected by the access and mobility management function entities.

And after determining that the unified data management function is changed, the session management function entity releases the association with the unified data management function entity accessed before updating and associates the unified data management function entity with the selected target unified data management function entity. In implementation, the session management functional entity disassociates from the unified data management functional entity accessed before updating through a specific de-registration flow or a de-subscription flow, the session management functional entity associates to the target unified data management functional entity through a specific registration flow or a subscription flow, and because the session management functional entity already has context information related to the user equipment, the association with the target unified data management functional entity can be completed only by binding the update access and mobility management functional entity and the target unified data management functional entity without acquiring the subscription data of the user equipment from the unified data management functional entity again. The session management functional entity may also perform processing according to the registration procedure, specifically including re-acquiring the subscription data of the user equipment from the target unified data management functional entity and completing the related subscription.

It should be noted that, after the session management functional entity is associated with the target unified data management functional entity, the session management functional entity changes the recorded unified data management functional entity into the target unified data management functional entity.

With reference to fig. 13, a flow of performing user route update in a user equipment registration process according to an embodiment of the present invention is described.

Assuming that the unified data management function entity selected by the authentication service function entity before the route is updated is a first unified data management function entity, and the target unified data management function entity accessed by the user equipment after the route is updated is a second unified data management function entity.

Step 1301, the user equipment initiates an initial registration request; wherein, the user identifier carried in the initial registration request is SUCI.

Step 1302, the access and mobility management functional entity selects a suitable authentication service functional entity according to a PLMN (Public Land mobile network) in the suii and the routing information.

Step 1303, the network side authenticates the user, in the authentication and authorization process, the authentication service functional entity selects a proper unified data management functional entity according to the PLMN and routing information in the SUCI, and after the authentication process is completed, the authentication service functional entity returns the SUPI information of the user to the access and mobility management functional entity. The access and mobility management functions establish a 5GMM context for the UE indexed by SUPI.

And step 1304, the access and mobility management functional entity and the first unified data management functional entity complete user registration, acquire subscription data for user subscription and other operations according to the SUPI information, and update the 5GMM context of the UE.

Step 1305, the first unified data management functional entity determines that the route of the user equipment needs to be updated, and the first unified data management functional entity sends second information for notifying the user equipment of triggering the route update to the access and mobility management functional entity;

it should be noted that, after the first unified data management functional entity sends the second information to the access and mobility management functional entity, the access and mobility management functional entity needs to forward the second information to the user equipment.

Step 1306, the access and mobility management functional entity allocates 5G-GUTI to the UE, stores the relevant information in the 5GMM context of the UE, and sends a registration accept message containing the 5G-GUTI and the second information to the UE, thereby completing the registration procedure.

Step 1307, after receiving the registration acceptance message containing the second information, the user equipment sends a registration update request containing the first route update indication to the access and mobility management functional entity;

the first route update indication may be through a separate parameter or included in another parameter, and its purpose is to trigger the access and mobility management functional entity to trigger the unified data management functional entity to select after receiving the registration request. For example, the registration update type of parameter update can be increased by expanding the registration type, and the indication that the update parameter is the route is carried; or directly carry a parameter to indicate the registration update to be used for route update, etc. The updated route may also be carried in the indication information.

Step 1308, the access and mobility management functional entity selects a unified data management functional entity and determines that the unified data management function changes;

specifically, the access and mobility management functional entity selects according to the SUPI of the user equipment, and selects a second unified data management functional entity; and if the access and mobility management functional entity determines that the recorded first unified data management functional entity is different from the selected second unified data management functional entity, the access and mobility management functional entity determines that the unified data management functional entity is changed.

If the unified data management functional entity is not changed after the access and mobility management functional entity judges, the subsequent steps are ignored, namely, the association with the first unified data management functional entity and the processing associated to the second unified data management functional entity are not needed to be contacted.

Step 1309, the access and mobility management functional entity disassociates from the first unified data management functional entity according to the recorded first unified data management functional entity.

Step 1310, the access and mobility management function entity is associated to a second unified data management function entity and the recorded unified data management function entity is changed to the second unified data management function entity.

With reference to fig. 14, a flow of performing a user route update after the user equipment completes registration according to an embodiment of the present invention is described.

1401, the first unified data management function entity sends second information for notifying the user equipment to trigger the routing update to the access and mobility management function entity;

after determining the unified data management functional entity which needs to update the user equipment access, the first unified data management functional entity sends the second information to the access and mobility management functional entity; for example, if the operator needs to move the user database of the user equipment, the first unified data management functional entity sends the second information for notifying the user equipment of triggering the routing update to the access and mobility management functional entity.

Step 1402, the access and mobility management functional entity forwards the second information to the user equipment;

specifically, the access and mobility management functional entity forwards the second information to the user equipment in a NAS transport message manner;

alternatively, the access and mobility management functions may also forward the second information to the user equipment OTA.

Step 1403, the user equipment records the updated routing information and returns a response message to the access and mobility management functional entity;

and when the access and mobility management functional entity forwards the second information to the user equipment in an NAS transport message mode, the user equipment returns a response to the access and mobility management functional entity through the NAS transport.

Step 1404, the access and mobility management functional entity forwards the response message returned by the user equipment to the first unified data management functional entity.

Step 1405, the access and mobility management functional entity sends a registration update request containing the first route update indication to the access and mobility management functional entity;

Step 1406, the access and mobility management functional entity selects the unified data management functional entity and determines that the unified data management functional entity changes;

If the unified data management functional entity is not changed after the access and mobility management functional entity judges, the subsequent steps are ignored, namely, the association with the first unified data management functional entity and the processing associated to the second unified data management functional entity are not required to be contacted, and the routing updating processing of the session management functional entity is not required to be initiated.

Step 1407, the access and mobility management functional entity disassociates from the first unified data management functional entity according to the recorded first unified data management functional entity.

Step 1408, the access and mobility management function entity is associated to the second unified data management function entity and the recorded unified data management function entity is changed to the second unified data management function entity.

Step 1409, the access and mobility management functional entity determines the associated session management functional entity according to the 5GMM context information of the user equipment, and sends a second route update instruction to the session management functional entity;

wherein the second route update indication is used to represent a route update of the user equipment.

Step 1410, after receiving the second route updating instruction, the session management functional entity determines a target unified data management functional entity of the user equipment;

the determination of the target unified data management function entity may be that the session management function entity triggers selection according to the SUPI after receiving the second route update indication, or that the access and mobility management function entity notifies the session management function entity.

Step 1411, the session management functional entity determines that the unified data management function changes, and the session management functional entity releases the association with the first unified data management functional entity;

the session management functional entity compares the recorded first uniform data management functional entity with the selected second uniform data management functional entity according to the determined target uniform data management function, namely the second uniform data management functional entity, and determines that the uniform data management function changes;

and the session management functional entity disassociates the unified data management functional entity accessed before updating through a specific de-registration process or a de-subscription process.

And step 1412, the session management function entity is associated to the second unified data management function entity, and the recorded unified data management function entity is changed into the second unified data management function entity.

The session management functional entity is associated to the target unified data management function through a specific registration flow or subscription flow, and because the session management functional entity already has context information related to the user equipment, the association with the target unified data management functional entity can be realized without acquiring the subscription data of the user equipment from the source unified data management functional entity again, and only the access and mobility management functional entity and the target unified data management functional entity are updated to be bound to complete the subscription to the target unified data management functional entity. The session management functional entity may also perform processing according to the registration procedure, including re-acquiring the subscription data of the user equipment from the target unified data management functional entity and completing the related subscription.

As shown in fig. 15, a third user equipment according to the embodiment of the present invention includes: a processor 1500, a memory 1501, a transceiver 1502, and a bus interface.

The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1501 may store data used by the processor 1000 in performing operations. The transceiver 1503 is used to receive and transmit data under the control of the processor 1500.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1500, and various circuits of memory, represented by memory 1501, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1501 may store data used by the processor 1500 in performing operations.

The processes disclosed in the embodiments of the present invention can be applied to the processor 1500, or implemented by the processor 1500. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits in hardware or instructions in software in the processor 1500. The processor 1500 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1501, and the processor 1500 reads the information in the memory 1501 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 1500 is configured to read a program in the memory 1501 and execute:

As shown in fig. 16, an embodiment of the present invention provides an access and mobility management functional entity, including: a processor 1600, a memory 1601, a transceiver 1602, and a bus interface.

The processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1601 may store data used by the processor 1000 in performing operations. The transceiver 1603 is used to receive and transmit data under the control of the processor 1600.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1600, and various circuits, represented by memory 1601, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1601 may store data used by the processor 1600 in performing operations.

The processes disclosed in the embodiments of the present invention may be implemented in processor 1600, or may be implemented by processor 1600. In implementation, the steps of the signal processing flow may be performed by integrated logic circuits in hardware or instructions in software in the processor 1600. The processor 1600 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1601, and the processor 1600 reads information in the memory 1601 and completes steps of the signal processing flow in conjunction with hardware thereof.

Specifically, the processor 1600 is configured to read a program in the memory 1601 and execute:

and selecting a unified data management functional entity.

Optionally, the processor 1600 is further configured to:

Optionally, the processor 1600 is specifically configured to:

Optionally, the processor 1600 is further configured to:

Optionally, the processor 1600 is specifically configured to:

Optionally, the processor 1600 is further configured to:

As shown in fig. 17, a user equipment according to an embodiment of the present invention includes:

a second receiving module 1701, configured to receive second information, which is sent by the unified data management functional entity through the access and mobility management functional entity and used for notifying the ue of a route update;

a second sending module 1702, configured to send, after receiving the second information, a registration update request including a first route update instruction to the access and mobility management functional entity, so that the access and mobility management functional entity performs unified data management functional entity selection after receiving the first route update instruction.

As shown in fig. 18, an access and mobility management functional entity according to an embodiment of the present invention includes:

a third receiving module 1801, configured to receive a registration update request that includes a first route update indication and is sent by a user equipment;

and a selection module 1802, configured to perform unified data management function entity selection.

Optionally, the selection module 1802 is further configured to:

Optionally, the selection module 1802 is specifically configured to:

Optionally, the selection module 1802 is further configured to:

Optionally, the selection module 1802 is specifically configured to:

Optionally, the selection module 1802 is further configured to:

Embodiments of the present invention provide a computer-readable medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the method described above on the user equipment side, or the steps of the method described above on the access and mobility management function entity side.

As shown in fig. 19, an embodiment of the present invention provides a user routing update method, where the method includes:

step 1901, the ue receives second information sent by the unified data management entity through the access and mobility management functional entity for notifying the ue of routing update;

step 1902, after receiving the second information, the ue sends a registration update request including a first route update indication to the access and mobility management functional entity, so that the access and mobility management functional entity performs unified data management functional entity selection after receiving the first route update indication.

Based on the same inventive concept, the embodiment of the present invention provides a method for updating a user route, and because the method corresponds to the method for accessing and managing a mobility management function entity in the user route updating system of the embodiment of the present invention, and the principle of the method for solving the problem is similar to that of the system, the implementation of the method can refer to the implementation of the system, and repeated details are omitted.

As shown in fig. 20, an embodiment of the present invention provides a user routing update method, where the method includes:

step 2001, the access and mobility management functional entity receives a registration update request containing a first route update indication sent by the user equipment;

step 2002, the access and mobility management functional entity performs unified data management functional entity selection.

Optionally, the method further includes:

and the access and mobility management functional entity sends a second route updating instruction to a session management functional entity so that the session management functional entity determines a target unified data management functional entity accessed by the user equipment after updating after receiving the second route updating instruction.

The present application is described above with reference to block diagrams and/or flowchart illustrations of methods, apparatus (systems) and/or computer program products according to embodiments of the application. It will be understood that one block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, and/or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer and/or other programmable data processing apparatus, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the subject application may also be embodied in hardware and/or in software (including firmware, resident software, micro-code, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in connection with an instruction execution system. In the context of this application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method for updating a user route, the method comprising:

2. The method of claim 1, wherein the first information comprises some or all of the following information:

3. The method of claim 2, wherein the user equipment initiates a registration procedure comprising:

4. A method for updating a user route, the method comprising:

5. The method of claim 4, wherein the first information comprises some or all of the following information:

6. A user device, comprising: a processor, a memory, and a transceiver;

7. The UE of claim 6, wherein the first information comprises some or all of the following information:

8. The user equipment of claim 7, wherein the processor is specifically configured to:

9. A unified data management function entity, comprising: a processor, a memory, and a transceiver;

10. The unified data management function entity of claim 9, wherein said first information comprises some or all of the following information:

11. A user device, comprising:

a first receiving module, configured to receive first information, which is sent by a unified data management functional entity through an access and mobility management functional entity and used for notifying the user equipment of route update;

and the first processing module is used for initiating a de-registration process after receiving the first information and initiating a registration process after the de-registration process is finished.

12. A unified data management function entity, comprising:

a first sending module, configured to send, to the ue through an access and mobility management functional entity, first information for notifying the ue to trigger a routing update, so that the ue initiates a de-registration procedure after receiving the first information, and initiates a registration procedure after the de-registration procedure is completed;

and the second processing module is used for controlling the sending module to send the first information.

13. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 3, or the steps of the method according to claim 4 or 5.

14. A method for updating a user route, the method comprising:

15. The method of claim 14, wherein the first route update indication indicates that the registration update request is for a route update.

16. The method of claim 14, wherein the first route update indication further includes updated routing information.

17. A method for updating a user route, the method comprising:

18. The method of claim 17, wherein after the unified data management function entity selection by the access and mobility management function entity, further comprising:

19. The method of claim 18, wherein the accessing and mobility management function entity disassociating from the unified data management function entity accessed prior to updating comprises:

20. The method of claim 17, wherein after the unified data management function entity selection by the access and mobility management function entity according to the first route update indication, further comprising:

21. The method of claim 20, wherein the access and mobility management function entity is associated with the target unified data management function, comprising:

22. The method of claim 17, further comprising:

23. The method of claim 22, wherein after the session management function entity determines, after receiving the second route update indication, a target unified data management function entity to which the ue accesses after the route update, further comprising:

24. A user device, comprising: a processor, a memory, and a transceiver;

25. The user equipment of claim 24, wherein the first routing update indication indicates that the registration update request is for a routing update.

26. The user equipment of claim 24, wherein the first routing update indication further comprises updated routing information.

27. An access and mobility management function entity, comprising: a processor, a memory, and a transceiver;

and selecting a unified data management functional entity.

28. The access and mobility management functional entity of claim 27, wherein the processor is further configured to:

29. The access and mobility management functional entity of claim 28, wherein the processor is specifically configured to:

30. The access and mobility management functional entity of claim 27, wherein the processor is further configured to:

31. The access and mobility management functional entity of claim 30, wherein the processor is specifically configured to:

32. The access and mobility management functional entity of claim 27, wherein the processor is further configured to:

and sending a second route updating instruction to a session management functional entity so that the session management functional entity determines a target unified data management functional entity accessed by the user equipment after the route updating after receiving the second route updating instruction.

33. A user device, comprising:

34. An access and mobility management function entity, comprising:

35. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 14 to 16 or the steps of the method according to any one of claims 17 to 23.