CN111200849B

CN111200849B - User route updating method and device

Info

Publication number: CN111200849B
Application number: CN201811378457.0A
Authority: CN
Inventors: 唐廷芳; 艾明; 王胡成
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-11-19
Filing date: 2018-11-19
Publication date: 2022-08-09
Anticipated expiration: 2038-11-19
Also published as: CN111200849A

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. In the embodiment of the invention, a source unified data management functional entity sends first information representing the route update of user equipment to an access and mobility management functional entity, so that the access and mobility management functional entity determines a target unified data management functional entity accessed by the user equipment after the route update and associates the target unified data management functional entity with the target unified data management functional entity. The access and mobility management functional entity determines the routing update of the user equipment after receiving the first information, determines the target unified data management functional entity accessed after updating, and establishes association with the target unified data management functional entity; the updating of the user route inside the core network is realized, and the system performance is 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 method and an apparatus for updating a user route.

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 Authentication service Function (Authentication service Function) entity returns the SUPI to the Access and Mobility Management Function (Access and Mobility Management Function) entity, in the subsequent flow, SUPI is used to identify inside the 5G core network, for example, the access and mobility Management Function entity selects a Unified Data Management Function (Unified Data Management) entity according to SUPI, a Session Management Function (Session Management Function) entity selects a Unified Data Management Function entity according to SUPI, and a Temporary Identifier (5G-GUTI (5G global Unified Temporary Identifier 5G, user global Unique Temporary Identifier) or 5G-S-TMSI (5G S-Temporary Mobile user Identifier)) is used to identify the user at the air interface. The sui includes a Routing ID field for Routing the UE to a corresponding unified data management function entity, and particularly for a large operator, when there are multiple sub-unified data management function entities, the unified data management function entity is often determined by the Routing ID.

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, where the method includes:

the source unified data management function entity sends first information representing routing update of the user equipment to an access and mobility management function entity, so that the access and mobility management function entity determines a target unified data management function entity accessed by the user equipment after routing update and associates the target unified data management function entity with the target unified data management function entity.

Optionally, the sending, by the source unified data management function entity, first information indicating a routing update of the user equipment to the access and mobility management function entity includes:

and the source unified data management functional entity sends first information containing unified data management functional entity related information and/or an indication representing the routing update of the user equipment to the access and mobility management functional entity.

Optionally, the method further includes:

and the source unified data management functional entity sends second information representing routing update of the user equipment to a session management functional entity so that the session management functional entity determines a target unified data management function accessed by the user equipment after update and associates the target unified data management function with the target unified data management functional entity.

Optionally, the sending, by the source unified data management function entity, second information indicating a routing update of the user equipment to the session management function entity includes:

and the source unified data management functional entity sends second information containing unified data management functional entity related information and/or an indication representing the routing update of the user equipment to the session management functional entity.

the source unified data management functional entity sends first information containing updated routing information to the access and mobility management functional entity so that the access and mobility management functional entity determines the target unified data management functional entity according to the updated routing information; or

And the source unified data management functional entity sends first information containing updated routing information and an indication representing the routing update of the user equipment to the access and mobility management functional entity so that the access and mobility management functional entity determines the target unified data management functional entity according to the updated routing information.

the source unified data management functional entity sends updated routing information to the session management functional entity so that the session management functional entity determines the target unified data management functional entity according to the updated routing information; or

And the source unified data management functional entity sends first information containing updated routing information and an indication representing routing update of the user equipment to the session management functional entity, so that the session management functional entity determines the target unified data management functional entity according to 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 access and mobility management functional entity receives first information which is sent by a source unified data management functional entity and represents the routing update of user equipment;

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

Optionally, after the accessing and mobility management functional entity determines the target unified data management functional entity accessed by the user equipment after the route update, the method further includes:

and the access and mobility management functional entity disassociates from the source unified data management functional entity.

Optionally, the receiving, by the access and mobility management functional entity, first information that represents a routing update of the user equipment and is sent by a source unified data management functional entity includes:

and the access and mobility management functional entity receives first information which is sent by the source unified data management functional entity and contains unified data management functional entity related information and/or an indication representing user equipment routing update.

the access and mobility management functional entity receives first information which is sent by a source unified data management functional entity and contains updated routing information; or

And the access and mobility management functional entity receives first information which is sent by a source unified data management functional entity and contains updated routing information and an indication representing the routing update of the user equipment.

Optionally, the determining, by the access and mobility management functional entity, a target unified data management function accessed by the user equipment after the route update includes:

and the access and mobility management functional entity determines the target unified data management functional entity according to the updated routing information.

Optionally, the method further includes:

the access and mobility management functional entity receives the routing information corresponding to the user equipment, which is sent by an authentication service functional entity;

and the access and mobility management functional entity stores the routing information sent by the authentication service functional entity and selects an accessed source unified data management functional entity according to the routing information sent by the authentication service functional entity.

Optionally, after the accessing and mobility management functional entity stores the routing information sent by the authentication service functional entity, the method further includes:

and the access and mobility management functional entity sends the stored routing information to a session management functional entity so that the session management functional entity stores the received routing information and selects an accessed source unified data management functional entity according to the received routing information.

Optionally, after the access and mobility management functional entity receives the first information indicating the routing update of the user equipment, which is sent by the source unified data management functional entity, the method further includes:

and the access and mobility management functional entity sends third information representing the routing update of the user equipment to a session management functional entity so that the session management functional entity determines a target unified data management function accessed by the user equipment after the routing update, associates the target unified data management function with the target unified data management functional entity and releases the association with the source unified data management functional entity.

Optionally, the sending, by the access and mobility management functional entity, third information indicating a routing update of the user equipment to the session management functional entity includes:

the access and mobility management functional entity sends third information containing unified data management functional entity related information and/or an indication representing user equipment routing update to the session management functional entity; or

The access and mobility management functional entity sends third information containing updated routing information to the session management functional entity; or

And the access and mobility management functional entity sends third information containing updated routing information and an indication representing the routing update of the user equipment to the session management functional entity.

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

the session management functional entity determines the route updating of the user equipment;

and the session management functional entity determines a target unified data management functional entity accessed by the user equipment after the routing is updated, and associates the target unified data management functional entity with the session management functional entity.

Optionally, after the session management function entity determines the target unified data management function entity to which the user equipment is accessed after the route update, the method further includes:

and the session management functional entity is disassociated from the source unified data management functional entity accessed by the user equipment before the route updating.

Optionally, the determining, by the session management functional entity, a routing update of the user equipment includes:

after receiving second information which is sent by a source uniform data management function entity accessed by the user equipment and represents the route updating of the user equipment before the route updating, the session management function entity determines the route updating of the user equipment; or

And after receiving third information which is sent by the access and mobility management functional entity and represents the routing update of the user equipment, the session management functional entity determines the routing update of the user equipment.

Optionally, the receiving, by the session management functional entity, second information indicating a routing update of the user equipment, sent by a source unified data management functional entity to which the user equipment is accessed before the routing update includes:

the session management functional entity receives second information which is sent by the source unified data management functional entity and contains unified data management functional entity related information and/or an indication representing user equipment routing update; or

The session management functional entity receives second information which is sent by the source unified data management functional entity and contains updated routing information; or

And the session management functional entity receives second information which is sent by the source unified data management functional entity and contains updated routing information and an indication representing the routing update of the user equipment.

Optionally, the receiving, by the session management functional entity, third information indicating a routing update of the user equipment, sent by the access and mobility management functional entity includes:

the session management functional entity receives third information which is sent by the access and mobility management functional entity and contains the related information of the unified data management functional entity and/or an indication representing the routing update of the user equipment; or

The session management functional entity receives third information which is sent by the access and mobility management functional entity and contains updated routing information; or

And the session management functional entity receives third information which is sent by the access and mobility management functional entity and contains updated routing information and an indication representing the routing update of the user equipment.

Optionally, the method further includes:

the session management functional entity receives routing information corresponding to the user equipment, which is sent by an access and mobility management functional entity;

and the session management functional entity stores the received routing information and selects an accessed unified data management functional entity according to the received routing information.

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

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

and sending first information representing the routing update of the user equipment to an access and mobility management functional entity so that the access and mobility management functional entity determines a target unified data management functional entity accessed by the user equipment after the routing update and associates the target unified data management functional entity with the target unified data management functional entity.

Optionally, the processor is specifically configured to:

and sending first information containing unified data management function entity related information and/or an indication representing the routing update of the user equipment to the access and mobility management function entity.

Optionally, the processor is further configured to:

and sending second information representing routing update of the user equipment to a session management function entity so that the session management function entity determines a target unified data management function accessed by the user equipment after update and associates the target unified data management function entity with the target unified data management function entity.

Optionally, the processor is specifically configured to:

and sending second information containing the related information of the unified data management function entity and/or an indication representing the routing update of the user equipment to the session management function entity.

Optionally, the processor is specifically configured to:

sending first information containing updated routing information to the access and mobility management functional entity so that the access and mobility management functional entity determines the target unified data management functional entity according to the updated routing information; or

And sending first information containing updated routing information and an indication representing the routing update of the user equipment to the access and mobility management functional entity so that the access and mobility management functional entity determines the target unified data management functional entity according to the updated routing information.

Optionally, the processor is specifically configured to:

sending second information containing updated routing information to the session management functional entity so that the session management functional entity determines the target unified data management functional entity according to the updated routing information; or

And sending second information containing updated routing information and an indication representing the routing update of the user equipment to the session management functional entity, so that the session management functional entity determines the target unified data management functional entity according to the updated routing information.

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

receiving first information which is sent by a source unified data management functional entity and represents user equipment routing update;

and determining a target unified data management function entity accessed by the user equipment after the routing is updated, and associating the target unified data management function entity with the user equipment.

Optionally, the processor is further configured to:

and after determining the target unified data management function entity accessed by the user equipment after the route is updated, releasing the association with the source unified data management function entity.

Optionally, the processor is specifically configured to:

and receiving first information which is sent by the source unified data management function entity and contains unified data management function entity related information and/or an indication representing the routing update of the user equipment.

Optionally, the processor is specifically configured to:

receiving first information which is sent by a source unified data management functional entity and contains updated routing information; or

And receiving first information which is sent by the source unified data management functional entity and contains updated routing information and an indication representing the routing update of the user equipment.

Optionally, the processor is specifically configured to:

and determining the target unified data management functional entity according to the updated routing information.

Optionally, the processor is further configured to:

before receiving first information which is sent by a source unified data management functional entity and represents routing update of user equipment, receiving routing information corresponding to the user equipment, which is sent by an authentication service functional entity;

and storing the routing information sent by the authentication service functional entity, and selecting an accessed source unified data management functional entity according to the routing information sent by the authentication service functional entity.

Optionally, the processor is further configured to:

after storing the routing information sent by the authentication service function entity, sending the stored routing information to a session management function entity so that the session management function entity stores the received routing information and selects an accessed source unified data management function entity according to the received routing information.

Optionally, the processor is further configured to:

after receiving first information which is sent by a source unified data management function entity and represents user equipment routing update, sending third information which represents user equipment routing update to a session management function entity, so that the session management function entity determines a target unified data management function accessed by the user equipment after routing update, associates the target unified data management function to the target unified data management function entity, and releases the association with the source unified data management function entity.

Optionally, the processor is specifically configured to:

sending third information containing unified data management function entity related information and/or an indication representing user equipment routing update to the session management function entity; or

Sending third information containing updated routing information to the session management functional entity; or

And sending third information containing the updated routing information and an indication representing the routing update of the user equipment to the session management function entity.

In a sixth aspect, an embodiment of the present invention provides a session management function entity, including: a processor, a memory, and a transceiver;

determining a user equipment routing update;

Optionally, the processor is further configured to:

and after determining the target unified data management functional entity accessed by the user equipment after the route updating, releasing the association with the source unified data management functional entity accessed by the user equipment before the route updating.

Optionally, the processor is specifically configured to:

after receiving second information which is sent by a source unified data management functional entity accessed by the user equipment and represents the route updating of the user equipment before the route updating, determining the route updating of the user equipment; or

And after receiving third information which is sent by the access and mobility management functional entity and represents the routing update of the user equipment, determining the routing update of the user equipment.

Optionally, the processor is specifically configured to:

receiving second information which is sent by the source unified data management functional entity and contains unified data management functional entity related information and/or an indication representing user equipment routing update; or

Receiving second information which is sent by the source unified data management functional entity and contains updated routing information; or

And receiving second information which is sent by the source unified data management functional entity and contains updated routing information and an indication representing the routing update of the user equipment.

Optionally, the processor is specifically configured to:

receiving third information which is sent by the access and mobility management functional entity and contains related information of a unified data management functional entity and/or an indication representing routing update of user equipment; or

Receiving third information which is sent by the access and mobility management functional entity and contains updated routing information; or

And receiving third information which is sent by the access and mobility management functional entity and contains updated routing information and an indication for indicating the routing update of the user equipment.

Optionally, the processor is further configured to:

receiving routing information corresponding to the user equipment, which is sent by an access and mobility management functional entity;

and storing the received routing information, and selecting an accessed source unified data management functional entity according to the received routing information.

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

a sending module, configured to send first information indicating a routing update of a user equipment to an access and mobility management functional entity, so that the access and mobility management functional entity determines a target unified data management functional entity to which the user equipment is accessed after the routing update and associates the target unified data management functional entity with the target unified data management functional entity.

Optionally, the sending module is specifically configured to:

Optionally, the sending module is further configured to:

Optionally, the sending module is specifically configured to:

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

the first receiving module is used for receiving first information which is sent by a source unified data management functional entity and represents the routing update of user equipment;

and the first association module is used for determining a target unified data management function entity accessed by the user equipment after the route is updated and associating the target unified data management function entity with the first association module.

Optionally, the first association module is further configured to:

Optionally, the first receiving module is specifically configured to:

Optionally, the first association module is specifically configured to:

Optionally, the first receiving module is further configured to:

and storing the routing information sent by the authentication service functional entity, and selecting an accessed unified data management functional entity according to the routing information sent by the authentication service functional entity.

Optionally, the first receiving module is further configured to:

after storing the routing information sent by the authentication service function entity, sending the stored routing information to a session management function entity so that the session management function entity stores the received routing information and selects an accessed unified data management function entity according to the received routing information.

Optionally, the first receiving module is further configured to:

Optionally, the first receiving module is specifically configured to:

In a ninth aspect, an embodiment of the present invention provides a session management function entity, including:

a first determining module for determining a user equipment routing update;

and the second association module is used for determining a target unified data management function entity accessed by the user equipment after the route is updated and associating the target unified data management function entity with the user equipment.

Optionally, the second association module is further configured to:

Optionally, the first determining module is specifically configured to:

And receiving second information which is sent by the source unified data management functional entity and contains updated routing information and/or an indication representing the routing update of the user equipment.

Optionally, the first determining module is specifically configured to:

Optionally, the first determining module is further configured to:

before determining the routing update of the user equipment, receiving routing information corresponding to the user equipment, which is sent by an access and mobility management functional entity;

In a tenth aspect, embodiments of the present invention provide a computer-readable medium on which a computer program is stored, which program, when executed by a processor, performs the steps of the method as described in the first aspect above, or the steps of the method as described in the second aspect above, or the steps of the method as described in the third aspect above.

In the embodiment of the invention, the source unified data management functional entity sends first information representing the routing update of the user equipment to the access and mobility management functional entity, and the access and mobility management functional entity determines the routing update of the user equipment after receiving the first information, determines a target unified data management functional entity accessed after the update and establishes association with the target unified data management functional entity; the updating of the user route in the core network is realized, and the system performance is improved.

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

after the target access and mobility management functional entity selects the accessed target unified data management functional entity, acquiring relevant information of a source unified data management functional entity contained in the context information of the user equipment from the source access and mobility management functional entity;

and the target access and mobility management functional entity determines that the unified data management functional entity accessed by the user equipment changes according to the relevant information of the source unified data management function and the target unified data management functional entity.

Optionally, after the target access and mobility management functional entity determines that the unified data management functional entity accessed by the user equipment changes, the method further includes:

and the target access and mobility management functional entity is associated to the target unified data management functional entity, and records the relevant information of the target unified data management functional entity to the context information of the user equipment.

Optionally, after the target access and mobility management functional entity determines that the unified data management functional entity accessed by the user equipment changes according to the relevant information of the source unified data management function and the target unified data management functional entity, the method further includes:

and the target access and mobility management functional entity sends fourth information indicating that the unified data management functional entity accessed by the user equipment is changed to a session management functional entity, so that the session management functional entity determines the target unified data management functional entity accessed by the user equipment after the unified data management functional entity is changed according to the fourth information.

Optionally, the sending, by the target access and mobility management functional entity, to the session management functional entity, indication information indicating that a unified data management functional entity accessed by the user equipment changes includes:

and the target access and mobility management functional entity sends fourth information containing the related information of the unified data management functional entity and/or an indication representing the change of the unified data management functional entity to the session management functional entity.

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

the session management functional entity receives fourth information which is sent by the target access and mobility management functional entity and indicates that the unified data management function accessed by the user equipment changes;

and the session management functional entity determines a target unified data management functional entity accessed by the user equipment after the unified data management functional entity is changed according to the fourth information.

Optionally, the receiving, by the session management functional entity, fourth information that indicates that a unified data management function accessed by the user equipment changes and is sent by the access and mobility management functional entity includes:

and the session management functional entity receives fourth information which is sent by the access and mobility management functional entity and contains the related information of the unified data management functional entity and/or an indication indicating that the unified data management functional entity changes.

Optionally, after the session management functional entity determines, according to the fourth information, that the target unified data management functional entity to which the user equipment is accessed after the unified data management functional entity changes, the method further includes:

the session management functional entity is disassociated from the source unified data management functional entity; and/or

The session management function entity is associated to the target unified data management function entity.

Optionally, after the session management functional entity determines, according to the indication information, that the unified data management functional entity is changed, the target unified data management functional entity to which the user equipment is accessed, the method further includes:

and the session management functional entity updates the unified data management function related information in the context of the user equipment to be the related information of the target unified data management functional entity.

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

after selecting an accessed target unified data management functional entity, acquiring relevant information of the source unified data management functional entity contained in the context information of the user equipment from a source access and mobility management functional entity;

and determining that the unified data management function entity accessed by the user equipment changes according to the related information of the source unified data management function and the target unified data management function entity.

Optionally, the processor is further configured to:

and after determining that the unified data management functional entity accessed by the user equipment is changed, associating the unified data management functional entity with the target unified data management functional entity, and recording related information of the target unified data management functional entity into context information of the user equipment.

Optionally, the processor is further configured to:

after determining that the unified data management function entity accessed by the user equipment is changed according to the related information of the source unified data management function and the target unified data management function entity, sending fourth information indicating that the unified data management function entity accessed by the user equipment is changed to a session management function entity, so that the session management function entity determines the target unified data management function entity accessed by the user equipment after the unified data management function entity is changed according to the fourth information.

Optionally, the processor is specifically configured to:

and sending fourth information containing the related information of the unified data management functional entity and/or an indication indicating that the unified data management functional entity changes to the session management functional entity.

In a fourteenth aspect, an embodiment of the present invention provides a session management function entity, including: a processor, a memory, and a transceiver;

receiving fourth information which is sent by a target access and mobility management functional entity and indicates that the unified data management function accessed by the user equipment changes;

and determining a target unified data management function entity accessed by the user equipment after the unified data management function entity is changed according to the fourth information.

Optionally, the processor is specifically configured to:

and receiving fourth information which is sent by the access and mobility management functional entity and contains the related information of the unified data management functional entity and/or an indication indicating that the unified data management functional entity changes.

Optionally, the processor is further configured to:

after determining a target unified data management function entity accessed by the user equipment after the unified data management function entity is changed according to the fourth information, removing the association with the source unified data management function entity; and/or to the target unified data management function entity.

Optionally, the processor is further configured to:

after determining a target unified data management function entity accessed by the user equipment after the unified data management function entity is changed according to the indication information, updating the unified data management function related information in the context of the user equipment to be the related information of the target unified data management function entity.

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

the acquiring module is used for acquiring relevant information of a source unified data management functional entity contained in the context information of the user equipment from the source access and mobility management functional entity after selecting an accessed target unified data management functional entity;

and the second determining module is used for determining that the unified data management function entity accessed by the user equipment changes according to the relevant information of the source unified data management function and the target unified data management function entity.

Optionally, the second determining module is further configured to:

after determining that the unified data management function entity accessed by the user equipment is changed according to the related information of the source unified data management function, sending fourth information indicating that the unified data management function entity accessed by the user equipment is changed to a session management function entity, so that the session management function entity determines a target unified data management function entity accessed by the user equipment after the unified data management function entity is changed according to the fourth information.

Optionally, the second determining module is specifically configured to:

In a sixteenth aspect, an embodiment of the present invention provides a session management function entity, including:

the second receiving module is used for receiving fourth information which is sent by the target access and mobility management functional entity and indicates that the unified data management function accessed by the user equipment changes;

and the third determining module is used for determining a target unified data management functional entity accessed by the user equipment after the unified data management functional entity is changed according to the fourth information.

Optionally, the second receiving module is specifically configured to:

Optionally, the third determining module is further configured to:

In a seventeenth aspect, embodiments of the present invention provide a computer-readable medium on which a computer program is stored, which, when executed by a processor, performs the steps of the method according to the eleventh aspect, or the steps of the method according to the twelfth aspect.

In the embodiment of the invention, after the access of the user equipment and the mobility management functional entity are changed, the changed target access of the user equipment and the changed mobility management functional entity are accessed from the source access of the user equipment before the change and the mobility management functional entity, and the related information of the source unified data management functional entity contained in the context information of the user equipment is obtained. The context information of the user equipment stored by the source access and mobility management functional entity in the embodiment of the invention contains the relevant information of the source unified data management functional entity, and after the target access and mobility management functional entity selects the target unified data management functional entity, the change of the unified data management functional entity can be determined according to the relevant information of the source unified data management functional entity and the information of the selected target unified data management functional entity, so that the embodiment of the invention provides a method for determining the route update of a user after the cross-access and mobility management functional entity moves. Further improving system performance.

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 user route update according to the embodiment of the present invention;

FIG. 4 is a flowchart illustrating a second user routing update according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating a third embodiment of a user route update;

fig. 6 is a flowchart illustrating a fourth user route update according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a first source-based unified data management functional entity according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a first access and mobility management functional entity according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a first session management function entity according to an embodiment of the present invention;

FIG. 10 is a diagram illustrating a second source-based unified data management function entity according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a second access and mobility management functional entity according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a second session management functional entity according to an embodiment of the present invention;

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

fig. 14 is a flowchart of a second user route updating method according to the embodiment of the present invention;

fig. 15 is a flowchart of a third method for updating user routes according to the embodiment of the present invention;

FIG. 16 is a diagram illustrating a system for determining a user routing update according to an embodiment of the present invention;

fig. 17 is a flowchart of a fifth user route update according to the embodiment of the present invention;

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

fig. 19 is a schematic structural diagram of a first session management function entity according to an embodiment of the present invention;

fig. 20 is a schematic structural diagram of a second target access and mobility management functional entity according to an embodiment of the present invention;

fig. 21 is a schematic structural diagram of a second session management functional entity according to an embodiment of the present invention;

fig. 22 is a flowchart of a first method for determining a route update of a user equipment according to an embodiment of the present invention;

fig. 23 is a flowchart of a second method for determining a route update of a user equipment 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 Node B (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.

A Data Network (DN) 109 may refer to a Network providing services for the terminal 101, for example, some DNs may provide an internet access 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: a source unified data management function entity 20, an access and mobility management function entity 21 and a session management function entity 22.

The source unified data management function entity is a unified data management function entity accessed by the user equipment before route updating, and the unified data management function entity accessed by the user equipment after route updating is a target unified data management function entity.

The source unified data management functional entity 20 is configured to send first information indicating a routing update of the user equipment to the access and mobility management functional entity, so that the access and mobility management functional entity determines a target unified data management functional entity to which the user equipment is accessed after the routing update is performed, and associates the target unified data management functional entity with the target unified data management functional entity.

An access and mobility management functional entity 21, configured to receive first information indicating a routing update of a user equipment, sent by a source unified data management functional entity; and determining a target unified data management function entity accessed by the user equipment after the routing is updated, and associating the target unified data management function entity with the user equipment.

And the session management functional entity 22 is configured to determine a routing update of the user equipment, determine a target unified data management functional entity to which the user equipment is accessed after the routing update, and associate the target unified data management functional entity with the target unified data management functional entity.

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

In the user route updating system provided by the embodiment of the invention, when the user route needs to be updated, the source unified data management functional entity triggers the route updating inside the core network;

specifically, the source unified data management functional entity notifies the access and mobility management functional entities to perform routing update according to the following modes:

a source unified data management functional entity sends first information containing unified data management functional entity related information and/or an indication representing user equipment routing update to an access and mobility management functional entity; or

The source uniform data management functional entity sends first information containing updated routing information to the access and mobility management functional entity; or

And the source unified data management functional entity sends first information containing updated routing information and an indication representing the routing update of the user equipment to the access and mobility management functional entity.

Correspondingly, after receiving the first information, the access and mobility management functional entity determines a target unified data management functional entity accessed by the user equipment after the route is updated.

The following describes the user route update process separately for different first information.

First, the first information contains the related information of the unified data management function entity and/or an indication representing the routing update of the user equipment.

After determining that the routing update of the user equipment needs to be triggered, the source unified data management functional entity sends first information representing the routing update of the user equipment to the access and mobility management functional entity; for example, the operator needs to move the subscriber database of the subscriber device.

It should be noted that, after the source unified data management functional entity determines that the user equipment route update needs to be triggered, the source unified data management functional entity sends a route change notification to the user equipment through the access and mobility management functional entity;

wherein, the route change notification carries the updated route information.

A first alternative way to send a route change notification is: the source uniform data management function entity sends a route change notification to the access and mobility management function entity, and the access and mobility management function entity transmits the route change notification to the user equipment;

it should be noted that, if the route change notification is sent in this way, the access and mobility management functional entity cannot know the content of the message forwarded to the ue.

If the source unified data management function entity adopts a first mode of sending a route change notification, the source unified data management function entity sends first information representing the route update of the user equipment to the access and mobility management function entity after sending the route change notification to the user equipment through the access and mobility management function entity, and the access and mobility management function determines a target unified data management function entity according to the first information.

A second alternative way to send a route change notification is: after the source uniform data management functional entity sends the route change notification to the access and mobility management functional entity, the access and mobility management functional entity can acquire the content in the route change notification, and then the access and mobility management functional entity records the route update;

it should be noted that, when the second method of sending the route change notification is adopted, the source unified data management functional entity does not need to notify the access and mobility management functional entities of the route change again. The function of the access and mobility management function entity for recording the route change is to directly determine the target unified data management function entity after receiving the route update response of the user equipment.

The related information of the unified data management functional entity comprises identification information of a target unified data management functional entity;

the identification information of the target unified data management function entity may be a target unified data management function ID and/or a target unified data management function IP address.

The indication representing the user equipment route update may be a cause value, or a specific indication parameter;

the reason value and the specific indication parameter are both used for indicating the routing update of the user equipment or the relocation of the unified data management function.

1. The first information comprises related information of a unified data management functional entity;

a source unified data management functional entity sends first information containing unified data management functional entity related information to an access and mobility management functional entity;

correspondingly, after receiving the first information, the access and mobility management functional entity selects a target unified data management functional entity according to the unified data management functional entity related information in the first information.

2. The first information comprises an indication representing the routing update of the user equipment;

the source uniform data management functional entity sends first information containing an indication representing the routing update of the user equipment to the access and mobility management functional entity;

accordingly, the access and mobility management function entity selects a target unified data management function entity according to the SUPI of the user equipment after receiving the first information.

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 are 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 the routing update of the user equipment needs to be triggered, the unified data management function entity accessed by the user equipment is modified to the second unified data management function; then, after receiving the first information including the indication representing the routing update of the user equipment, the access and mobility management function entity selects the unified data management function entity as a second unified data management function entity according to the SUPI of the user equipment.

3. The first information comprises the related information of the unified data management functional entity and an indication for representing the routing update of the user equipment;

a source unified data management functional entity sends first information containing unified data management functional entity related information and an indication representing user equipment routing update to an access and mobility management functional entity;

accordingly, after the access and mobility management functional entity receives the first information, the access and mobility management functional entity may select a target unified data management functional entity according to the information related to the unified data management functional entity, or the access and mobility management functional entity may select the target unified data management functional entity according to the SUPI of the user equipment.

After determining a target unified data management functional entity, an access and mobility management functional entity is associated to the target unified data management functional entity;

In addition, after determining that the routing update of the user equipment needs to be triggered, the source unified data management functional entity also needs to trigger the routing update of the session management functional entity;

the session management functional entity determines the routing update of the user equipment according to the following modes:

in the mode 1, after receiving second information which is sent by the source unified data management functional entity and represents the routing update of the user equipment, the session management functional entity determines the routing update of the user equipment.

Specifically, after determining to trigger the routing update of the user equipment, the source unified data management functional entity sends second information representing the routing update of the user equipment to the session management functional entity;

wherein, the second information comprises the related information of the unified data management function entity and/or an indication representing the routing update of the user equipment.

Correspondingly, after receiving the second information sent by the source unified data management function entity, the session management function entity determines a target unified data management function entity to which the user equipment is accessed after the routing is updated.

It should be noted that the source unified data management functional entity sends the first information to the access and mobility management functional entity, and the sequence is not distinguished from the sequence from the source unified data management functional entity to the session management functional entity.

1. The second information comprises related information of a unified data management functional entity;

and after receiving second information containing the related information of the unified data management functional entity, the session management functional entity selects a target unified data management functional entity according to the related information of the unified data management functional entity in the second information.

2. The second information comprises an indication representing the routing update of the user equipment;

and after receiving second information containing an indication representing the routing update of the user equipment, the session management function entity selects a target unified data management function entity according to the SUPI of the user equipment.

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 are 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 the routing update of the user equipment needs to be triggered, the unified data management function entity accessed by the user equipment is modified to the second unified data management function; then, after receiving the second information including the indication representing the routing update of the user equipment, the session management function entity selects the unified data management function entity as a second unified data management function entity according to the SUPI of the user equipment.

3. The second information comprises the related information of the unified data management functional entity and an indication for representing the routing update of the user equipment;

after the session management functional entity receives the first information including the relevant information of the unified data management functional entity and the indication representing the routing update of the user equipment, the session management functional entity may select a target unified data management functional entity according to the relevant information of the unified data management functional entity, or the session management functional entity may select a target unified data management functional entity according to the SUPI of the user equipment.

And in the mode 2, the session management functional entity receives third information which is sent by the access and mobility management functional entity and represents the routing update of the user equipment.

Specifically, after receiving first information which is sent by a source unified data management functional entity and represents the routing update of the user equipment, an access and mobility management functional entity sends third information which represents the routing update of the user equipment to a session management functional entity;

wherein, the third information comprises the related information of the unified data management function entity and/or an indication representing the routing update of the user equipment.

Correspondingly, after receiving the third information sent by the access and mobility management functional entities, the session management functional entity determines a target unified data management functional entity to which the user equipment is accessed after the routing is updated.

1. The third information comprises the related information of the unified data management functional entity;

and after receiving third information containing the related information of the unified data management functional entity, the session management functional entity selects a target unified data management functional entity according to the related information of the unified data management functional entity in the third information.

2. The third information comprises an indication representing the routing update of the user equipment;

and after receiving third information containing an indication representing the routing update of the user equipment, the session management function entity selects a target unified data management function entity according to the SUPI of the user equipment.

3. The third information comprises the related information of the unified data management functional entity and an indication for representing the routing update of the user equipment;

after the session management functional entity receives the third information including the relevant information of the unified data management functional entity and the indication indicating the routing update of the user equipment, the session management functional entity may select a target unified data management functional entity according to the relevant information of the unified data management functional entity, or the session management functional entity may select a target unified data management functional entity according to the SUPI of the user equipment.

After determining a target unified data management functional entity, a session management functional entity of the embodiment of the invention is associated with the target unified data management functional entity;

and the session management function entity disassociates from the source unified data management function entity.

The following is described for disassociating the unified data management function entity accessed before the update:

and after determining that the unified data management functional entity is changed, the access and mobility management functional/session management functional entity releases the association with the unified data management functional entity accessed before updating. In implementation, the unified data management function entity accessed before updating is disassociated through a specific de-registration process or a de-subscription process.

The following description is made for the target unified data management functional entity accessed after the association update:

and after determining that the unified data management functional entity is changed, the access and mobility management functional/session management functional entity is associated with the target unified data management functional entity accessed after updating. In implementation, the access and mobility management function/session management function is associated with the target unified data management function through a specific registration flow or a specific subscription flow, and if the access and mobility management function/session management function already has context information related to the user equipment, the association with the target unified data management function may not require to reacquire subscription data of the user equipment from the unified data management function, and may only need to update the binding between the access and mobility management function/session management function and the target unified data management function to complete the subscription to the target unified data management function.

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.

The following describes an example of updating the user route after the user equipment completes registration.

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

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

Step 301, the first unified data management function entity sends a route change notification to the access and mobility management function entity;

after determining that the unified data management functional entity accessed by the user equipment needs to be updated, the first unified data management functional entity sends a route change notification 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 function entity sends a route change notification to the access and mobility management function entity.

Step 302, the access and mobility management functional entity forwards the route change notification to the user equipment;

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

the route change notification includes updated route information.

Step 303, the user equipment returns a response message to the access and mobility management functional entity.

And step 304, the access and mobility management functional entity forwards the response message returned by the user equipment to the first unified data management functional entity.

305, the first unified data management function entity sends first information representing routing update of the user equipment to the access and mobility management function entity;

wherein, the first information comprises the related information of the unified data management function entity and/or an indication representing the routing update of the user equipment.

And step 306, the access and mobility management functional entity determines a second unified data management functional entity accessed by the updated user equipment according to the first information.

Step 307 the access and mobility management function entity disassociates from the first unified data management function entity.

Step 308 the access and mobility management functional entity is associated to a second unified data management functional entity.

Step 309, the first unified data management function entity sends second information indicating the routing update of the user equipment to the session management function entity;

And step 310, the session management functional entity determines an updated UMD2 entity accessed by the user equipment according to the second information.

Step 311, the session management function entity disassociates from the first unified data management function entity.

Step 312, the session management function entity is associated to the second unified data management function entity.

It should be noted that, the sequence of steps 309 to 312 and 305 to 308 is not distinguished.

The following steps are provided as an alternative to steps 308-312.

Step 313, the access and mobility management functional entity sends third information indicating the routing update of the user equipment to the session management functional entity;

And step 314, the session management functional entity determines an updated UMD2 entity accessed by the user equipment according to the third information.

Step 315, the session management function entity disassociates from the first unified data management function entity.

Step 316, the session management function entity is associated to a second unified data management function entity.

It should be noted that the route updating method provided by the embodiment of the present invention is also applicable to the situation of updating the route during the registration process of the user equipment; specifically, when the first unified data management function entity sends a registration acceptance request to the ue through the access and mobility management function entity in the user registration process, the route change notification in step 301 may be carried, and the subsequent execution operation may refer to the above description.

In the user route update procedure shown in fig. 3, after receiving the route change notification, the access and mobility management functional entity passes the route change notification to the user equipment; in addition, the embodiment of the present invention further provides a method for sending a route change notification, that is, the access and mobility management functional entity can acquire message content in the route change notification and record route change after receiving the route change notification sent by the source unified data management function. The following is a description with reference to a specific flow.

Fig. 4 shows a flow of user route update according to an embodiment of the present invention.

Step 401, the first unified data management function entity sends a route change notification 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 route change notification 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 a route change notification to the access and mobility management functional entity;

the route change notification includes the updated route information.

Step 402, the access and mobility management functional entity records route change;

step 403, the access and mobility management functional entity forwards the route change notification to the user equipment;

step 404, the user equipment returns a response message to the access and mobility management functional entity.

Step 405, 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 406, the access and mobility management functional entity selects a second unified data management functional entity according to the SUPI of the user equipment;

the second unified data management function entity is different from the first unified data management function entity.

Step 407, the access and mobility management functional entity is associated to a second unified data management functional entity.

Step 408, the access and mobility management functional entity disassociates from the first unified data management functional entity.

Step 409, the access and mobility management functional entity informs the session management functional entity of the route update;

it should be noted here that after a session has been established for a user equipment, the session management function entity needs to be notified of a routing update; specifically, the access and mobility management functional entity invokes an SM context update service of the associated session management functional entity to notify the session management functional entity of the route update according to the context of the user equipment.

Step 410, the session management function entity selects a second unified data management function entity according to the SUPI of the user equipment; if the information of the second unified data management function is included in step 408, the session management function may directly use the second unified data management function without performing the selection process again.

Step 411, the session management function entity disassociates from the first unified data management function entity.

Step 412, the session management function entity is associated to the second unified data management function entity.

And secondly, the first information comprises updated routing information.

After the user equipment route is updated, the core network internally adopts the updated route information to carry out the route; for example, the access and mobility management functional entity selects an accessed unified data management functional entity according to the updated routing information, and the session management functional entity selects an accessed unified data management functional entity according to the updated routing information;

optionally, in the registration process of the user equipment, after the authentication is completed, the access and mobility management functional entity receives the routing information corresponding to the user equipment sent by the authentication service functional entity; and the access and mobility management functional entity stores the routing information sent by the authentication service functional entity and selects an accessed unified data management functional entity according to the routing information sent by the authentication service functional entity.

After the access and mobility management functional entity is associated to the selected unified data management functional entity, the access and mobility management functional entity sends the stored routing information to the session management functional entity;

That is to say, in the registration process of the user equipment, the embodiment of the present invention also performs routing in the core network according to the routing information.

After determining that the routing update of the user equipment needs to be triggered, the source unified data management functional entity sends first information representing the routing update of the user equipment to the access and mobility management functional entity; for example, an operator needs to move a user database of a user device;

wherein, the first information comprises updated routing information;

optionally, the first information further includes an indication indicating a routing update of the user equipment.

Correspondingly, after receiving the first information, the access and mobility management functional entity selects the target unified data management functional entity according to the updated routing information in the first information.

Optionally, after determining to trigger the routing update of the user equipment, the source unified data management functional entity sends second information indicating the routing update of the user equipment to the session management functional entity;

wherein, the second information comprises updated routing information; or the second information comprises updated routing information and an indication representing the routing update of the user equipment.

Optionally, the session management functional entity determines the target unified data management functional entity according to the updated routing information.

It should be noted that the second information may also include an indication indicating a routing update of the user equipment.

wherein, the third information comprises updated routing information; or, the third information includes updated routing information and an indication indicating the routing update of the user equipment.

Correspondingly, after receiving the second information sent by the source unified data management functional entity, the session management functional entity determines a target unified data management functional entity to which the user equipment is accessed after the route is updated.

It should be noted that the second information may also include an indication indicating a routing update of the ue or information related to the unified data management function. If the unified data management function related information is included in the second information, the session management function entity may determine a target unified data management function entity according to the unified data management function related information. If the indication of the user equipment route update is contained in the second information and indicates that the user equipment route update occurs, the session management function triggers the process of determining the target unified data management function entity, otherwise, the process is not needed.

The following describes an example of updating a user route during registration of a user device.

With reference to fig. 5, a flow of user route update according to an embodiment of the present invention is described.

Assume that the unified data management function entity selected by the authentication service function entity is a first unified data management function, and the unified data management function entity accessed by the user equipment after the update is a second unified data management function.

Step 501, user equipment initiates an initial registration request; wherein, the user identifier carried in the initial registration request is SUCI.

Step 502, 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 503, 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 the routing information in the SUCI, and after the authentication process is completed, the authentication service functional entity returns the SUPI information and the routing 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.

Step 504, the access and mobility management functional entity selects a first uniform data management functional entity according to the routing information, completes operations such as user registration, user subscription acquisition of signed data and the like with the first uniform data management functional entity, and records the routing information in the 5GMM context of the user equipment; the first uniform data management functional entity determines that the route of the user equipment needs to be updated, and sends a route change notification to the access and mobility management functional entity;

step 505, the access and mobility management functional entity allocates 5G-GUTI to the UE and stores the relevant information in the 5GMM context of the UE, and sends a registration accept message containing the 5G-GUTI and the route change notification to the UE, thereby completing the registration process.

Step 506, the user equipment sends a response message for updating the route to the access and mobility management function entity.

Step 507, the access and mobility management functional entity forwards the response message of updating the route to the access and mobility management functional entity.

Step 508, the first unified data management functional entity sends first information indicating routing update of the user equipment to the access and mobility management functional entity;

wherein, the first message comprises updated routing information; or the first message comprises updated routing information and an indication representing a routing update of the user equipment.

Step 509, the access and mobility management function entity returns a response message to the first unified data management function.

Step 510, comparing the recorded routing information with the updated routing information by the access and mobility management functional entity, and determining a second unified data management functional entity according to the updated routing information; and updating the routing information recorded in the context of the user equipment.

Step 511, the access and mobility management function entity is associated to a second unified data management function entity.

Step 512, the access and mobility management functional entity disassociates from the first unified data management functional entity.

With reference to fig. 6, a flow of user route update according to an embodiment of the present invention is described.

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

601, the first unified data management function entity sends a route change notification 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 route change notification to the access and mobility management functional entity; for example, the operator needs to move the subscriber database of the subscriber device.

Step 602, the access and mobility management functional entity forwards the route change notification to the user equipment;

specifically, the access and mobility management functional entity forwards the route change notification to the user equipment in a NAS transport message manner.

Step 603, the user equipment returns a response message to the access and mobility management functional entity;

when the access and mobility management functional entity forwards the route change notification 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 604, 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 605, the first unified data management function entity sends first information indicating the routing update of the user equipment to the access and mobility management function entity;

Step 606, the access and mobility management function entity returns a response message to the first unified data management function.

Step 607, the access and mobility management functional entity compares the recorded routing information with the updated routing information, and determines a second unified data management functional entity according to the updated routing information; and updating the routing information recorded in the context of the user equipment.

Step 608, the access and mobility management function entity is associated to a second unified data management function entity.

Step 609, the access and mobility management functional entity disassociates from the first unified data management functional entity.

Step 610, the first unified data management function entity sends second information indicating the routing update of the user equipment to the session management function entity;

wherein, the second message comprises updated routing information; or the second message includes the updated routing information and an indication indicating a routing update for the user equipment.

Step 611, the session management function entity returns a response message to the first unified data management function.

Step 612, the session management functional entity compares that the recorded routing information is different from the updated routing information, and determines a second unified data management functional entity according to the updated routing information; and updating the routing information recorded in the context of the user equipment.

Step 613, the session management function entity disassociates from the first unified data management function entity.

And step 614, the session management functional entity is associated to a second unified data management functional entity.

It should be noted that, the sequence of steps 610 to 614 and steps 605 to 609 is not distinguished.

The following steps are provided as an alternative to steps 610 through 614.

Step 615, the access and mobility management functional entity sends third information indicating the routing update of the user equipment to the session management functional entity;

wherein, the third message comprises updated routing information; or the third message comprises the updated routing information and an indication representing the routing update of the user equipment.

Step 616, the session management functional entity compares the recorded routing information with the updated routing information to be different, and determines a second unified data management functional entity according to the updated routing information; and updating the routing information recorded in the context of the user equipment.

Step 617, the session management function entity is associated to a second unified data management function entity.

Step 618, the session management function entity disassociates from the first unified data management function entity.

It should be noted that the embodiment of fig. 4 also uses a method of routing within the core network by using a route. That is, when the first unified data management functional entity sends a route change notification to the user equipment, the access and mobility management functional entity can acquire the content in the route change notification, and then the access and mobility management functional entity records the route update; the access and mobility management functional entity determines that the processing of the target unified data management functional entity, i.e. the second unified data management functional entity, may be triggered when the access and mobility management functional entity receives a route update response returned by the user equipment. The specific other processes are similar.

As shown in fig. 7, a source unified data management functional entity according to an embodiment of the present invention includes: a processor 700, a memory 701, a transceiver 702, and a bus interface.

The processor 700 is responsible for managing the bus architecture and general processing, and the memory 701 may store data used by the processor 1000 in performing operations. The transceiver 703 is used for receiving and transmitting data under the control of the processor 700.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 700, and various circuits, represented by memory 701, 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 700 is responsible for managing the bus architecture and general processing, and the memory 701 may store data used by the processor 700 in performing operations.

The processes disclosed in the embodiments of the present invention may be applied to the processor 700, or implemented by the processor 700. In implementation, the steps of the signal processing flow may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 700. The processor 700 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 701, and the processor 700 reads the information in the memory 701, and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 700 is configured to read the program in the memory 701 and execute:

Optionally, the processor 700 is specifically configured to:

Optionally, the processor 700 is further configured to:

Optionally, the processor 700 is specifically configured to:

As shown in fig. 8, an access and mobility management functional entity according to an embodiment of the present invention includes: a processor 800, a memory 801, a transceiver 802, and a bus interface.

The processor 800 is responsible for managing the bus architecture and general processing, and the memory 801 may store data used by the processor 1000 in performing operations. The transceiver 803 is used for receiving and transmitting data under the control of the processor 800.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 800 and various circuits of memory represented by memory 801 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 800 is responsible for managing the bus architecture and general processing, and the memory 801 may store data used by the processor 800 in performing operations.

The processes disclosed in the embodiments of the present invention may be applied to processor 800, or implemented by processor 800. 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 800. The processor 800 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 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 modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in the memory 801, and the processor 800 reads the information in the memory 801 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 800 is configured to read the program in the memory 801 and execute:

Optionally, the processor 800 is further configured to:

Optionally, the processor 800 is specifically configured to:

receiving first information which is sent by a source unified data management functional entity and contains updated routing information;

Optionally, the processor 800 is specifically configured to:

Optionally, the processor 800 is further configured to:

Optionally, the processor 800 is specifically configured to:

As shown in fig. 9, a session management function entity in an embodiment of the present invention includes: a processor 900, a memory 901, a transceiver 902, and a bus interface.

The processor 900 is responsible for managing the bus architecture and general processing, and the memory 901 may store data used by the processor 1000 in performing operations. The transceiver 903 is used to receive and transmit data under the control of the processor 900.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 900, and various circuits, represented by memory 901, 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 900 is responsible for managing the bus architecture and general processing, and the memory 901 may store data used by the processor 900 in performing operations.

The processes disclosed in the embodiments of the present invention may be applied to the processor 900, or implemented by the processor 900. In implementation, the steps of the signal processing flow may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 900. The processor 900 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 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 901, and the processor 900 reads the information in the memory 901 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 900 is configured to read a program in the memory 901 and execute:

determining a user equipment routing update;

Optionally, the processor 900 is further configured to:

and after determining the target unified data management functional entity accessed by the user equipment after the route updating, releasing the association with the source unified data management functional entity accessed by the user equipment before the updating.

Optionally, the processor 900 is specifically configured to:

after receiving second information which is sent by a source unified data management functional entity accessed by the user equipment and represents the route update of the user equipment before updating, determining the route update of the user equipment; or

Optionally, the processor 900 is specifically configured to:

Optionally, the processor 900 is further configured to:

and storing the received routing information, and selecting an accessed unified data management functional entity according to the received routing information.

As shown in fig. 10, a source unified data management functional entity according to an embodiment of the present invention includes:

a sending module 1001, configured to send first information indicating a routing update of a user equipment to an access and mobility management functional entity, so that the access and mobility management functional entity determines a target unified data management functional entity to which the user equipment is accessed after the routing update and associates the target unified data management functional entity with the target unified data management functional entity;

the processing module 1002 is configured to control the sending module to send the first information.

Optionally, the sending module 1001 is specifically configured to:

Optionally, the sending module 1001 is further configured to:

Optionally, the sending module 1001 is specifically configured to:

As shown in fig. 11, an access and mobility management functional entity according to an embodiment of the present invention includes:

a first receiving module 1101, configured to receive first information indicating a routing update of a user equipment, sent by a source unified data management function entity;

a first associating module 1102, configured to determine a target unified data management function entity to which the user equipment is accessed after the route update is performed, and associate the target unified data management function entity with the target unified data management function entity.

Optionally, the first associating module 1102 is further configured to:

Optionally, the first receiving module 1101 is specifically configured to:

Optionally, the first association module 1102 is specifically configured to:

Optionally, the first receiving module 1101 is further configured to:

Optionally, the first receiving module 1101 is specifically configured to:

As shown in fig. 12, the session management function entity according to the embodiment of the present invention includes:

a first determining module 1201, configured to determine a routing update of a user equipment;

a second association module 1202, configured to determine a target unified data management function entity to which the user equipment is accessed after the route update is performed, and associate the target unified data management function entity with the target unified data management function entity.

Optionally, the second association module 1202 is further configured to:

Optionally, the first determining module 1201 is specifically configured to:

Receiving second information which is sent by the source unified data management functional entity and contains updated routing information and/or an indication representing user equipment routing update; or

Optionally, the first determining module 1201 is specifically configured to:

And receiving third information which is sent by the access and mobility management functional entity and contains updated routing information and an indication representing the routing update of the user equipment.

Optionally, the first determining module 1201 is further configured to:

Embodiments of the present invention provide a computer-readable medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method as described above for the source uniform data management function entity, or the steps of the method as described above for the access and mobility management function entity, or the steps of the method as described above for the session management function entity.

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 on the source uniform data management function entity 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 described again.

As shown in fig. 13, a method for updating a user route according to an embodiment of the present invention includes:

step 1301, the source unified data management function entity determines the routing update of the user equipment;

step 1302, the source unified data management function entity sends first information indicating a routing update of the user equipment to an access and mobility management function entity, so that the access and mobility management function entity determines a target unified data management function entity to which the user equipment is accessed after the routing update and associates the target unified data management function entity with the target unified data management function entity.

Optionally, the method further includes:

the source unified data management functional entity sends second information containing updated routing information and/or an indication representing user equipment routing update to the session management functional entity so that the session management functional entity determines the target unified data management functional entity according to the updated routing information; or

And the source unified data management functional entity sends second information containing updated routing information and/or an indication representing user equipment routing update to the session management functional entity, so that the session management functional entity determines the target unified data management functional entity according to the updated routing information.

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. 14, an embodiment of the present invention provides a user routing update method, where the method includes:

1401, the access and mobility management functional entity receives first information which is sent by a source unified data management functional entity and represents routing update of user equipment;

step 1402, the access and mobility management functional entity determines a target unified data management functional entity to which the user equipment is accessed after the routing update, and associates the target unified data management functional entity with the access and mobility management functional entity.

Optionally, before the accessing and mobility management functional entity receives the first information indicating the routing update of the user equipment, which is sent by the source unified data management functional entity, the method further includes:

and the access and mobility management functional entity stores the routing information sent by the authentication service functional entity and selects an accessed unified data management functional entity according to the routing information sent by the authentication service functional entity.

and the access and mobility management functional entity sends the stored routing information to a session management functional entity so that the session management functional entity stores the received routing information and selects an accessed unified data management functional entity according to the received routing information.

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 on the side of the session 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 not described again.

As shown in fig. 15, an embodiment of the present invention provides a user routing update method, where the method includes:

step 1501, the session management functional entity determines the route update of the user equipment;

step 1502, the session management functional entity determines a target unified data management functional entity to which the user equipment is accessed after the routing update, and associates the target unified data management functional entity with the session management functional entity.

Optionally, after the session management functional entity determines the target unified data management functional entity to which the user equipment is accessed after the route update, the method further includes:

and the session management functional entity is disassociated from the source unified data management functional entity accessed by the user equipment before updating.

after receiving second information which is sent by a source unified data management functional entity accessed by the user equipment and represents the routing update of the user equipment before updating, the session management functional entity determines the routing update of the user equipment; or

Optionally, the receiving, by the session management functional entity, second information indicating a routing update of the user equipment, sent by a source unified data management functional entity to which the user equipment is accessed before the update includes:

And the session management functional entity receives third information which is sent by the source unified data management functional entity and contains updated routing information and an indication representing the routing update of the user equipment.

Optionally, before the session management functional entity determines the routing update of the user equipment, the method further includes:

As shown in fig. 16, a system for determining a user routing update according to an embodiment of the present invention includes: a target access and mobility management function entity 160, a source access and mobility management function entity 161 and a session management function entity 162.

The source access and mobility management functional entity is an access and mobility management functional entity which is accessed before the user equipment generates cross-access and mobility management functional entity movement, and the target access and mobility management functional entity is an access and mobility management functional entity which is accessed after the user equipment generates cross-access and mobility management functional entity movement.

A target access and mobility management functional entity 160, configured to obtain, after selecting an accessed target unified data management functional entity, relevant information of a source unified data management function included in context information of the user equipment from a source access and mobility management functional entity; and determining that the unified data management function accessed by the user equipment changes according to the relevant information of the source unified data management function and the target unified data management function entity.

A source access and mobility management function entity 161, configured to send context information of the user equipment including information related to the source UDM to the target AMF entity;

optionally, the source access and mobility management functional entity 161 may further receive a notification that a unified data management functional entity that indicates the user equipment access changes, where the notification is sent by the target access and mobility management functional entity; if the source AMF does not delete the context information of the user equipment, the source AMF releases the association with the source unified data management function according to the related information of the source unified data management function; and the notification is sent after the target access and mobility management functional entity determines that the unified data management function accessed by the user equipment is changed according to the related information of the source unified data management function and the target unified data management functional entity selected to be accessed.

The session management functional entity 162 is configured to receive fourth information, which is sent by the target access and mobility management functional entity and indicates that a unified data management function for user equipment access changes; determining a target unified data management function entity accessed by the user equipment after the unified data management function entity is changed according to the fourth information; and the fourth information is sent after the target access and mobility management functional entity determines that the unified data management function accessed by the user equipment is changed according to the relevant information of the source unified data management function and the target unified data management functional entity selected to be accessed.

It should be noted that, if session management function reallocation occurs, the target session management function may obtain context information of the user equipment including relevant information of the source unified data management function entity from the source session management function entity, and determine that the unified data management function changes by comparing the selected target unified data management function entity with the obtained source unified data management function entity.

After the user equipment moves across the access and mobility management functional entity, the user equipment initiates a registration request to access a target access and mobility management functional entity; and the target access and mobility management functional entity selects a target unified data management functional entity to be accessed according to the SUPI of the user equipment.

The process of selecting the target access and mobility management function entity by the user equipment may adopt a method in the prior art, and details are not described herein again.

In the process of initiating initial registration by user equipment, the context information of the user equipment stored by the access and mobility management functional entity comprises the relevant information of a unified data management functional entity accessed by the user equipment;

wherein, the related information of the unified data management function entity includes but is not limited to:

the identification information of the unified data management function entity may be a unified data management function ID and/or a unified data management function IP address.

After selecting the target access and mobility management functional entity, the target access and mobility management functional entity acquires context information of the user equipment from the source access and mobility management functional entity, and judges whether the unified data management function changes according to relevant information of the source unified data management function contained in the acquired context information of the user equipment and the selected target unified data management functional entity;

it should be noted here that the information related to the source uniform data management function, which is included in the context information of the user equipment acquired from the source access and mobility management functional entity, is a source uniform data management functional entity that the user equipment accesses before the user equipment moves across the access and mobility management functional entities, and is also a source uniform data management functional entity that the user equipment accesses before the user equipment performs route update.

The target access and mobility management functional entity determines that the source unified data management functional entity is different from the target unified data management functional entity according to the relevant information of the source unified data management function contained in the context information of the user equipment, and determines that the unified data management functional entity changes;

in implementation, after determining that the unified data management function entity changes, the target access and mobility management function entity may notify the source access and mobility management function entity that the unified data management function accessed by the user equipment changes;

specifically, the target access and mobility management functional entity notifies the source access and mobility management functional entity in the following manner:

and the target access and mobility management functional entity sends a notice containing the related information of the target unified data management functional entity and/or an indication representing the change of the unified data management functional entity to the source access and mobility management functional entity.

Correspondingly, after the source access and mobility management functional entity receives the change of the unified data management function accessed by the user equipment notified by the target access and mobility management functional entity, the source access and mobility management functional entity releases the association with the source unified data management function according to the related information of the source unified data management function.

Optionally, after determining that the unified data management functional entity changes, the target access and mobility management functional entity disassociates from the source unified data management functional entity;

and associating the target unified data management functional entity, and recording the related information of the target unified data management functional entity into the context information of the user equipment.

In addition, after the target access and mobility management functional entity determines that the unified data management functional entity changes, the session management functional entity also needs to be triggered to update the route;

optionally, the target access and mobility management functional entity sends, to the session management functional entity, fourth information indicating that a unified data management function accessed by the user equipment is changed;

and after receiving the fourth information, the session management functional entity determines a target unified data management functional entity accessed by the user equipment after the unified data management functional entity changes.

The target access and mobility management functional entity sends the fourth information to the session management functional entity in the following way:

The session management functional entity receiving the fourth information may determine the target unified data management functional entity according to the following manner:

1. the fourth information comprises the related information of the unified data management functional entity.

And after receiving fourth information containing the related information of the unified data management functional entity, the session management functional entity selects a target unified data management functional entity according to the related information of the unified data management functional entity in the fourth information.

2. The fourth information includes an indication indicating that the unified data management function entity has changed.

And after receiving fourth information containing an instruction indicating that the unified data management function entity is changed, the session management function entity selects a target unified data management function entity according to the SUPI of the user equipment.

It should be noted that, after determining that the routing update of the user equipment needs to be triggered, the configuration parameters of the user equipment are modified through the background, assuming that the user equipment is accessed to the first unified data management functional entity before the routing update, and after determining that the routing update of the user equipment needs to be triggered, the unified data management functional entity accessed by the user equipment is modified to the second unified data management function; then, after receiving the fourth information including the indication indicating that the unified data management function entity is changed, the session management function entity selects the unified data management function entity as the second unified data management function entity according to the SUPI of the user equipment.

3. The fourth information includes information related to the unified data management function entity and an indication indicating that the unified data management function entity is changed.

After the session management functional entity receives the fourth message including the information related to the unified data management functional entity and the indication indicating that the unified data management functional entity is changed, the session management functional entity may select the target unified data management functional entity according to the information related to the unified data management functional entity, or the session management functional entity may select the target unified data management functional entity according to the SUPI of the user equipment.

And under the condition that the fourth information is not received, if the session management function reallocating occurs, the target session management function entity acquires the context information of the user equipment containing the relevant information of the source unified data management function from the source session management function entity, and determines that the unified data management function entity changes by comparing the selected target unified data management function entity with the acquired source unified data management function entity.

After determining a target unified data management functional entity, a session management functional entity of the embodiment of the invention is associated with the target unified data management functional entity; and the session management function entity disassociates from the source unified data management function entity.

In addition, the session management function entity updates the unified data management function related information in the context of the user equipment to the related information of the target unified data management function entity.

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

The following description will take the ue route update in the ue registration process as an example.

With reference to fig. 17, a flow of user route update according to an embodiment of the present invention is described.

The method comprises the steps of assuming that an access and mobility management functional entity initially accessed by user equipment is a first access and mobility management functional entity, an accessed unified data management functional entity is a first unified data management functional entity, the accessed access and mobility management functional entity after moving is a second access and mobility management functional entity, and the accessed unified data management functional entity is a second unified data management functional entity.

Step 1701, the user equipment initiates an initial registration request; wherein, the user identifier carried in the initial registration request is SUCI.

Step 1702, the first access and mobility management function entity selects a suitable authentication service function entity according to a PLMN (public land Mobile Network) in the suici and the routing information.

Step 1703, 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 first access and mobility management function establishes a 5GMM context for the UE indexed by SUPI.

Step 1704, the first access and mobility management function entity selects a first unified data management function entity to be accessed according to the SUPI of the user equipment, and records relevant information of the first unified data management function entity in the 5GMM context of the user equipment.

Step 1705, the first access and mobility management functional entity and the first unified data management functional entity complete operations such as user registration, obtaining subscription data and performing user subscription.

Step 1706, the first access and mobility management functional entity generates a registration accept message to the user equipment.

Step 1707, the user equipment sends a response message to the first access and mobility management function entity.

Step 1708, the first access and mobility management functional entity forwards the response message to the access and mobility management functional entity.

Step 1709, the ue sends a registration request to the second access and mobility management functional entity during the mobility procedure; wherein, the user identifier carried in the initial registration request is SUCI.

And step 1710, the second access and mobility management functional entity performs unified data management function selection.

Step 1711, the second access and mobility management functional entity obtains the relevant information of the first unified data management functional entity contained in the context information of the user equipment from the first access and mobility management functional entity, and determines that the unified data management functional entity changes according to the relevant information of the first unified data management functional entity and the selected second unified data management functional entity.

Step 1712, the first access and mobility management functional entity disassociates from the first unified data management functional entity;

it should be noted that, if the first access and mobility management functional entity needs to retain the context information of the user equipment, the first access and mobility management functional entity needs to disassociate from the first unified data management functional entity and associate to the second unified data management functional entity. And if the first access and mobility management functional entity does not need to reserve the context information of the user equipment, deleting the context information of the user equipment and registering to the first unified data management function.

Step 1713, the second access and mobility management function entity is associated to a second unified data management function entity.

Step 1714, the second 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 fourth information indicating that the unified data management functional entity accessed by the user equipment is changed to the session management functional entity.

Step 1715, after the session management functional entity determines that the unified data management functional change occurs, the session management functional entity releases the association with the first unified data management functional entity.

Step 1716, the session management function entity is associated to the second unified data management function entity, and the unified data management function related information in the context of the user equipment is updated to the related information of the second unified data management function entity.

It should be noted that, in the case that the fourth information is not received, if the session management function reallocation occurs, the session management function entity may obtain, from the source session management function, context information of the user equipment that includes the relevant information of the source unified data management function entity, and determine that the unified data management function changes by comparing the selected target unified data management function with the obtained source unified data management function.

It should be noted that, if the ue route update occurs due to the ue moving across the access and mobility management functional entities after the ue registration is completed, the ue route update may be performed through steps 1709 to 1716 in the above flow.

As shown in fig. 18, an object access and mobility management functional entity according to an embodiment of the present invention includes: a processor 1800, a memory 1801, a transceiver 1802, and a bus interface.

The processor 1800 is responsible for managing the bus architecture and general processing, and the memory 1801 may store data used by the processor 1000 in performing operations. The transceiver 1803 is used for receiving and transmitting data under the control of the processor 1800.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1800, and various circuits of the memory, represented by the memory 1801, 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 1800 is responsible for managing the bus architecture and general processing, and the memory 1801 may store data used by the processor 1800 in performing operations.

The processes disclosed in the embodiments of the present invention can be applied to the processor 1800, or implemented by the processor 1800. In implementation, the steps of the signal processing flow may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 1800. The processor 1800 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 1801, and the processor 1800 reads the information in the memory 1801 and combines the hardware to complete the signal processing procedure.

Specifically, the processor 1800 is configured to read the program stored in the memory 1801 and execute:

Optionally, the processor 1800 is further configured to:

Optionally, the processor 1800 is specifically configured to:

As shown in fig. 19, a session management function entity in an embodiment of the present invention includes: a processor 1900, a memory 1901, a transceiver 1902, and a bus interface.

The processor 1900 is responsible for managing the bus architecture and general processing, and the memory 1901 may store data used by the processor 1000 in performing operations. The transceiver 1903 is used for receiving and transmitting data under the control of the processor 1900.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1900, and various circuits of the memory, represented by the memory 1901, 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 1900 is responsible for managing a bus architecture and general processing, and the memory 1901 may store data used by the processor 1900 when performing operations.

The processes disclosed in the embodiments of the present invention can be applied to the processor 1900, or can be implemented by the processor 1900. In implementation, the steps of the signal processing flow may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 1900. The processor 1900 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 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 1901, and the processor 1900 reads information in the memory 1901 and completes steps of the signal processing flow in conjunction with hardware thereof.

Specifically, the processor 1900 is configured to read the program in the memory 1901 and execute:

Optionally, the processor 1900 is specifically configured to:

Optionally, the processor 1900 is further configured to:

As shown in fig. 20, an object access and mobility management functional entity according to an embodiment of the present invention includes:

an obtaining module 2001, configured to obtain, from the source access and mobility management functional entity, relevant information of the source unified data management functional entity included in the context information of the ue after selecting the accessed target unified data management functional entity;

a second determining module 2002, configured to determine, according to the relevant information of the source unified data management function and the target unified data management function entity, that a unified data management function entity accessed by the user equipment changes.

Optionally, the second determining module 2002 is further configured to:

Optionally, the second determining module 2002 is specifically configured to:

As shown in fig. 21, a session management function entity in an embodiment of the present invention includes:

a second receiving module 2101, configured to receive fourth information that is sent by the target access and mobility management functional entity and indicates that a unified data management function accessed by the user equipment changes;

a third determining module 2102, configured to determine, according to the fourth information, a target unified data management function entity to which the user equipment accesses after the unified data management function entity changes.

Optionally, the second receiving module 2101 is specifically configured to:

Optionally, the third determining module 2102 is further configured to:

Embodiments of the present invention provide a computer-readable medium having stored thereon a computer program that, when executed by a processor, performs the steps of the method according to the eleventh aspect or the steps of the method according to the twelfth aspect.

Based on the same inventive concept, the embodiment of the present invention provides a method for determining user route update, and because the method corresponds to the method for determining the target access and mobility management function entity side in the user route update system in 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. 22, a method for determining a user routing update according to an embodiment of the present invention includes:

step 2201, after the target access and mobility management functional entity selects the accessed target unified data management functional entity, acquiring relevant information of a source unified data management functional entity contained in the context information of the user equipment from the source access and mobility management functional entity;

step 2202, the target access and mobility management functional entity determines that the unified data management functional entity accessed by the user equipment changes according to the relevant information of the source unified data management function and the target unified data management functional entity.

Optionally, after the target access and mobility management functional entity determines that the unified data management functional entity accessed by the user equipment changes according to the relevant information of the source unified data management function, the method further includes:

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 determining a session management function entity side in a user route updating system in 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. 23, a method for updating a user route according to an embodiment of the present invention includes:

step 2301, the session management functional entity receives fourth information which is sent by the target access and mobility management functional entity and indicates that the unified data management function accessed by the user equipment changes;

and 2302, the session management functional entity determines, according to the fourth information, a target unified data management functional entity to which the user equipment is accessed after the unified data management functional entity changes.

Optionally, after the session management function entity determines, according to the fourth information, that a target unified data management function entity to which the user equipment is accessed after a unified data management function entity changes, the method further includes:

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:

a source unified data management functional entity sends first information representing routing update of user equipment to an access and mobility management functional entity so that the access and mobility management functional entity determines a target unified data management functional entity accessed by the user equipment after routing update and associates the target unified data management functional entity with the target unified data management functional entity;

the method further comprises the following steps:

2. The method of claim 1, wherein the source unified data management function entity sends first information representing a routing update of the user equipment to an access and mobility management function entity, comprising:

3. The method of claim 1, wherein the source unified data management function entity sends second information representing a user equipment routing update to a session management function entity, comprising:

4. The method of claim 1, wherein the source unified data management function entity sends first information representing a routing update of the user equipment to an access and mobility management function entity, comprising:

5. The method of claim 1, wherein the source unified data management function entity sends second information representing a user equipment routing update to a session management function entity, comprising:

the source unified data management functional entity sends second information containing updated routing information to the session management functional entity so that the session management functional entity determines the target unified data management functional entity according to the updated routing information; or

And the source unified data management functional entity sends second information containing updated routing information and an indication representing routing update of the user equipment to the session management functional entity, so that the session management functional entity determines the target unified data management functional entity according to the updated routing information.

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

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

after the access and mobility management functional entity receives the first information which is sent by the source unified data management functional entity and represents the routing update of the user equipment, the method further comprises the following steps:

7. The method of claim 6, wherein after the accessing and mobility management functional entity determines the target unified data management functional entity accessed by the user equipment after the route update, further comprising:

8. The method of claim 6, wherein the accessing and mobility management function entity receives first information indicating a routing update of a user equipment sent by a source unified data management function entity, and comprises:

9. The method of claim 6, wherein the accessing and mobility management function entity receives first information indicating a routing update of a user equipment sent by a source unified data management function entity, and comprises:

10. The method of claim 9, wherein the determining, by the access and mobility management function entity, the target unified data management function accessed by the user equipment after the route update comprises:

11. The method of claim 9, further comprising:

12. The method of claim 11, wherein after the access and mobility management function entity stores the routing information sent by the authentication service function entity, further comprising:

13. The method of claim 6, wherein the accessing and mobility management function entity sends third information indicating a routing update of the user equipment to the session management function entity, comprising:

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

15. The method of claim 14, wherein after the session management function entity determines the target unified data management function entity to which the user equipment accesses after the route update, further comprising:

16. The method of claim 14, wherein the session management function entity determining a user equipment routing update comprises:

17. The method as claimed in claim 16, wherein the receiving, by the session management function entity, the second information indicating the ue routing update sent by the source unified data management function entity to which the ue accesses before the routing update comprises:

And the session management functional entity receives second information which is sent by the source unified data management functional entity and contains updated routing information and an indication for representing routing update of the user equipment.

18. The method of claim 16, wherein the session management function entity receives third information indicating a routing update of the user equipment sent by an access and mobility management function entity, and comprises:

19. The method of claim 14, further comprising:

and the session management functional entity stores the received routing information and selects an accessed source unified data management functional entity according to the received routing information.

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

sending first information representing routing update of user equipment to an access and mobility management functional entity so that the access and mobility management functional entity determines a target unified data management functional entity accessed by the user equipment after routing update and associates the target unified data management functional entity with the target unified data management functional entity;

the processor is further configured to:

21. The source unified data management function entity of claim 20, wherein the processor is specifically configured to:

22. The source unified data management function entity of claim 20, wherein the processor is specifically configured to:

23. The source unified data management function entity of claim 20, wherein the processor is specifically configured to:

24. The source unified data management function entity of claim 20, wherein the processor is specifically configured to:

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

determining a target unified data management function entity accessed by the user equipment after route updating, and associating the target unified data management function entity with the user equipment;

the processor is further configured to:

after first information which is sent by a source unified data management functional entity and represents routing update of user equipment is received, third information which represents routing update of the user equipment is sent to a session management functional entity, so that the session management functional entity determines a target unified data management function accessed by the user equipment after the routing update, associates the target unified data management functional entity with the user equipment, and releases the association with the source unified data management functional entity.

26. The access and mobility management functional entity of claim 25, wherein the processor is further configured to:

27. The access and mobility management functional entity of claim 25, wherein the processor is specifically configured to:

28. The access and mobility management function entity of claim 25, wherein the processor is specifically 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 28, wherein the processor is further configured to:

receiving routing information corresponding to the user equipment sent by an authentication service function entity;

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

32. The access and mobility management functional entity of claim 25, wherein the processor is specifically configured to:

33. A session management function entity, comprising: a processor, a memory, and a transceiver;

determining a user equipment routing update;

34. The session management function entity of claim 33, wherein the processor is further configured to:

35. The session management function entity of claim 33, wherein the processor is specifically configured to:

36. The session management function entity of claim 35, wherein the processor is specifically configured to:

37. The session management function entity of claim 35, wherein the processor is specifically configured to:

38. The session management function entity of claim 33, wherein the processor is further configured to:

39. A source-unified data management function entity, comprising:

a sending module, configured to send first information indicating a routing update of a user equipment to an access and mobility management functional entity, so that the access and mobility management functional entity determines a target unified data management functional entity to which the user equipment is accessed after the routing update and associates the target unified data management functional entity with the target unified data management functional entity;

the sending module is further configured to:

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

the first association module is used for determining a target unified data management functional entity accessed by the user equipment after route updating and associating the target unified data management functional entity with the first association module;

the first receiving module is further configured to:

41. A session management function entity, comprising:

a first determining module for determining a user equipment routing update;

42. A computer-readable storage medium, having stored thereon a computer program, characterized in that the program, when being executed by a processor, is adapted to carry out the steps of the method according to any of the claims 1 to 5, or the steps of the method according to any of the claims 6 to 13, or the steps of the method according to any of the claims 14 to 19.

43. A method for determining routing updates for a subscriber, the method comprising:

44. The method of claim 43, wherein after the target access and mobility management functional entity determines that a change occurs in a unified data management functional entity accessed by the user equipment, further comprising:

45. The method of claim 43, wherein after the target access and mobility management function entity determines that the unified data management function entity accessed by the user equipment is changed according to the information related to the source unified data management function and the target unified data management function entity, further comprising:

46. The method of claim 45, wherein the target access and mobility management function entity sending indication information indicating that a unified data management function entity accessed by the UE is changed to a session management function entity, comprises:

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

48. The method of claim 47, wherein the session management function entity receives fourth information indicating that a unified data management function for the UE access is changed, which is sent by an access and mobility management function entity, and comprises:

49. The method as claimed in claim 47, wherein after the session management function entity determines, according to the fourth information, a target unified data management function entity to which the ue accesses after the unified data management function entity changes, further comprising:

50. The method of claim 47, wherein after the session management function entity determines, according to the fourth information, a target unified data management function entity to which the user equipment is accessed after the unified data management function entity changes, further comprising:

51. A target access and mobility management function entity, comprising: a processor, a memory, and a transceiver;

52. The target access and mobility management functional entity of claim 51, wherein the processor is further configured to:

and after determining that the unified data management functional entity accessed by the user equipment is changed, associating the unified data management functional entity with the target unified data management functional entity, and recording the relevant information of the target unified data management functional entity into the context information of the user equipment.

53. The target access and mobility management functional entity of claim 51, wherein the processor is further configured to:

54. The target access and mobility management functional entity of claim 53, wherein the processor is specifically configured to:

55. A session management function entity, comprising: a processor, a memory, and a transceiver;

56. The session management function entity of claim 55, wherein the processor is specifically configured to:

57. The session management function entity of claim 55, wherein the processor is further configured to:

after determining a target unified data management function entity accessed by the user equipment after the unified data management function entity is changed according to the fourth information, removing the association with a source unified data management function entity; and/or to the target unified data management function entity.

58. The session management function entity of claim 55, wherein the processor is further configured to:

after determining a target unified data management function entity accessed by the user equipment after the unified data management function entity is changed according to the fourth information, updating the unified data management function related information in the context of the user equipment to be the related information of the target unified data management function entity.

59. A target access and mobility management function entity, comprising:

60. A session management function entity, comprising:

61. A computer-readable storage medium, having stored thereon a computer program, the program being adapted, when executed by a processor, to carry out the steps of the method according to any of claims 43 to 46 or the steps of the method according to any of claims 47 to 50.