CN110741683A

CN110741683A - Network service implementation method, device, computer equipment and storage medium

Info

Publication number: CN110741683A
Application number: CN201780091692.7A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2020-01-31
Anticipated expiration: 2037-11-10
Also published as: CN110741683B; WO2019090662A1

Abstract

The invention discloses a method, a device, computer equipment and a storage medium for realizing network service, wherein the method comprises the following steps: the UE acquires the supporting situation of the network side for the network service, including the supporting situation of the NG-RAN for the network service and the supporting situation of the 5GC for the network service; and if the switching condition is determined to be met according to the supporting condition, the UE initiates a switching process to complete the switching. The scheme of the invention can ensure the smooth realization of the network service.

Description

Network service implementation method, device, computer equipment and storage medium

Technical Field

The present invention relates to wireless network technologies, and in particular, to a method and an apparatus for implementing a network service, a computer device, and a storage medium.

Background

In the fifth generation mobile communication (5G) network, for network services, the network side supporting the network side can include the following possibilities that a lower generation radio access network (NG-RAN) and a fifth generation mobile communication core network (5GC) both support, an NG-RAN does not support but supports 5GC, and neither the 5GC nor the NG-RAN support.

According to the prior art, User Equipment (UE) can only obtain the support condition of 5GC for the network service through access management function equipment (AMF), but cannot obtain the support condition of NG-RAN for the network service, so that it is impossible to determine the subsequent processing flow, such as whether to perform Handover (Handover), and the like, and thus the network service cannot be successfully realized.

Disclosure of Invention

In view of this, the invention provides a network service implementation method, a network service implementation device, a computer device and a storage medium.

The specific technical scheme is as follows:

A method for realizing network service includes:

the method for acquiring the support situation of the network side for the network service by the UE comprises the following steps: support of the NG-RAN for network traffic and support of the 5GC for network traffic;

and the UE determines that the switching condition is met according to the supporting condition, and then initiates a switching process so as to complete the switching.

A method for realizing network service includes:

the AMF completes switching for the UE according to a switching flow initiated by the UE;

the switching process is initiated after the UE determines that the switching condition is met according to the acquired network side support condition for the network service;

the network side support for the network service comprises: NG-RAN support case for network traffic and 5GC support case for network traffic.

A method for realizing network service includes:

the NG-RAN reports the supporting condition of the network service to the AMF so that the AMF can send the supporting condition of the network side to the UE;

the network side support for the network service comprises: the NG-RAN support case for network traffic and the 5GC support case for network traffic.

kinds of user equipment comprises a processing unit and a second processing unit;

the processing unit is used to obtain the network side support situation for the network service, including the support situation of NG-RAN for the network service and the support situation of 5GC for the network service;

and the second processing unit is used for initiating a switching process after determining that the switching condition is met according to the support condition so as to complete the switching.

A device with access management function comprises a third processing unit;

the third processing unit is configured to complete handover for the UE according to a handover procedure initiated by the UE;

A lower generation radio access network device comprises a fifth processing unit;

the fifth processing unit is configured to report a supporting condition of the NG-RAN for the network service to the AMF, so that the AMF sends the supporting condition of the network side for the network service to the UE;

computer apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor when executing the program implementing the method as described above.

computer readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the method as described above.

Based on the above description, it can be seen that, by adopting the scheme of the present invention, the UE can obtain the support situation of the network side for the network service, including: and the support condition of the NG-RAN for the network service and the support condition of the 5GC for the network service can further determine whether the switching condition is met according to the support conditions, and if so, the switching process can be initiated to complete the switching, thereby ensuring the smooth realization of the network service.

Drawings

Fig. 1 is a flowchart of an embodiment of a network service implementation method according to the present invention.

Fig. 2 is a schematic diagram of a registration process according to the present invention.

Fig. 3 is a schematic diagram of a handover procedure according to the present invention.

Fig. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of an access management function device according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of an embodiment of a lower generation radio access network device according to the present invention.

FIG. 7 illustrates a block diagram of an exemplary computer system/server 12 suitable for use in implementing embodiments of the present invention.

Detailed Description

In order to make the technical solution of the present invention clearer and more obvious, the solution of the present invention is further illustrated with reference to the drawings and examples.

It is understood that the embodiments described are some, but not all embodiments of the present invention based on the embodiments of the present invention, and all other embodiments obtained by those skilled in the art without inventive faculty are within the scope of the present invention.

Example

Fig. 1 is a flowchart of an embodiment of a network service implementation method according to the present invention. As shown in fig. 1, the following detailed implementation is included.

In 101, the UE obtains a supporting situation of a network side for a network service, including: NG-RAN support case for network traffic and 5GC support case for network traffic.

In 102, if the UE determines that the handover condition is satisfied according to the support of the network side for the network service, the UE initiates a handover procedure to complete the handover.

The UE can obtain the support situation of the network side for the network service sent by the AMF in the registration procedure.

Specifically, the UE may initiate a registration procedure with the NG-RAN so that the NG-RAN reports its support for the network service to the AMF, and further , the UE may obtain the support for the network service on the network side returned by the AMF.

As shown in fig. 2, in step 3, the NG-RAN may send a Registration Request (Registration Request) message to the amf (new amf), which may carry the support of the NG-RAN for network traffic.

In step 22, the AMF sends a Registration Accept (Registration Accept) message to the UE, which may carry a support situation of the network side for the network service.

The AMF acquires the support situation of the NG-RAN for the network service reported by the NG-RAN and knows the support situation of the AMF for the network service, namely the support situation of the 5GC for the network service, and then the support situation of the network side for the network service can be returned to the UE by combining the support situations of the NG-RAN and the 5GC for the network service.

The network side support for network traffic may include:

1) only 5GC support, i.e. 5GC support but not NG-RAN support;

2) neither 5GC nor NG-RAN support;

3)5GC and NG-RAN support, etc.

For the network service, if the case belongs to case 1) or 2), the UE may determine that the handover condition is satisfied, and then may initiate a handover procedure for the network service, and if the case belongs to case 3), the network service may be processed in a normal manner without handover.

In the flow shown in fig. 2, except that the

steps

3 and 22 need to carry their respective contents, the specific implementation of the other steps is the prior art.

In the switching process of the network service, the UE may initiate a service request for switching to the AMF, so that the AMF obtains switching decision information, where the switching decision information may include a support condition of the network side for the network service, and determines a switching manner according to the switching decision information, and completes the switching according to the switching manner.

As shown in fig. 3, the UE sends a Service Request (Service Request) to the AMF, where a network Service identifier may be carried, and if the network Service is an emergency Service, the network Service identifier may be carried.

According to the network service identification, the AMF can know which network service the UE initiates handover to, and can send an N2 Request (N2 Request for HO) message for handover to the NG-RAN, the NG-RAN can select a proper eNB for the UE according to the environment of the UE, the signal quality and the like, carry the eNB identification and the like in a handover command (HO Required), return the eNB identification and the like to the AMF, and inform the AMF of handover and the like.

And then, the AMF can determine a switching mode according to the acquired switching judgment information and complete switching according to the determined switching mode.

The handover decision information may include the network side support for the network service, i.e., the NG-RAN support for the network service and the 5GC support for the network service.

Since the UE initiates the handover procedure, the AMF may determine that it is not the case that both the NG-RAN and the 5GC support the network service, but the case that the 5GC supports the network service is known, so the AMF may analyze the supporting case of the NG-RAN for the network service, such as: if the 5GC supports network traffic, the NG-RAN does not support the network traffic.

If the 5GC supports network traffic and the NG-RAN does not support network traffic, the AMF may use a radio access technology handover (RAT HO) mode in which the core network 5GC remains unchanged but the base station needs to be changed, e.g., from the gbb to the eNB, and the NG-RAN may include both the gbb and the eNB, which may be connected to the 5GC, and may be connected to the 5GC through the gbb in general.

If the 5GC does not support network services, the AMF may use a packet switched domain System handover (PS System HO) mode in which both the core network and the base station are changed, such as being capable of handover to a 4G network.

The handover decision information may further include subscription information in addition to the support of the network side for the network service.

The AMF may acquire subscription information of the UE from a user data management device (UDM) through a Location Update Procedure (Update Location Procedure) of step 14 shown in fig. 2.

Accordingly, the AMF may determine the handover mode in combination with the support condition of the network side for the network service and the subscription information.

For example, if the 5GC does not support the network service or the subscription information does not support the network service, a PS System HO handover may be used, and if the 5GC and the subscription information both support the network service but the NG-RAN does not support the network service, an RAT HO handover may be used.

In addition, the AMF may also adopt a circuit domain handover (CS HO) mode, for example, if the UE requests to switch the "emergency call" service to the 3G network, the CS HO mode may be adopted.

How the AMF performs handover to the prior art according to each handover mode.

Example two

In this embodiment, the AMF may complete handover for the UE according to a handover procedure initiated by the UE. And the switching process is initiated after the UE determines that the switching condition is met according to the acquired support condition of the network side for the network service. The supporting situation of the network side for the network service comprises the following steps: NG-RAN support case for network traffic and 5GC support case for network traffic.

Before the AMF completes handover for the UE according to the handover procedure initiated by the UE, in the registration procedure shown in fig. 2, the support condition of the NG-RAN for the network service reported by the NG-RAN is obtained, where the report is reported after the UE initiates the registration procedure to the NG-RAN, and further , the AMF may send the support condition of the network side for the network service to the UE.

As shown in fig. 2, in step 3, the NG-RAN may send a Registration Request message to the amf (new amf), which may carry the support of the NG-RAN for network traffic.

In step 22, the AMF sends Registration Accept message to the UE, which may carry the support situation of the network side for the network service.

The network side support for network traffic may include:

1) only 5GC support, i.e. 5GC support but not NG-RAN support;

2) neither 5GC nor NG-RAN support;

3)5GC and NG-RAN support, etc.

In the handover procedure, the UE may send a service request to the AMF, where the service request may carry a network service identifier.

According to the network service identification, the AMF can know which network service the UE initiates switching, and can send an N2 Request for HO message to the NG-RAN, the NG-RAN can select a proper eNB for the UE according to the environment of the UE, the signal quality and the like, and return the eNB identification and the like carried in HO Qequered to the AMF, and inform the AMF of switching and the like.

If the 5GC supports network traffic and the NG-RAN does not support network traffic, the AMF may employ a RAT HO handover manner. If the 5GC does not support network services, the AMF can adopt a PS System HO switching mode.

The AMF may acquire subscription information of the UE from the UDM through step 14 Update Location Procedure shown in fig. 2.

In addition, the AMF may also adopt a CS HO handover mode, for example, if the UE requests to handover the "emergency call" service to the 3G network, the CS HO handover mode may be adopted.

EXAMPLE III

In this embodiment, the NG-RAN may report the support condition of the network service to the AMF, so that the AMF sends the support condition of the network side to the UE.

The network side support for network traffic may include: NG-RAN support case for network traffic and 5GC support case for network traffic.

In the registration process, the NG-RAN reports the support condition of the NG-RAN for the network service to the AMF.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions in other embodiments.

In summary, with the solutions of the embodiments, the UE may obtain the support conditions of the NG-RAN and the 5GC for the network service, and further determine whether the handover condition is met according to the support conditions, and if so, may initiate a handover procedure to complete the handover.

The above is a description of an embodiment of the method, and the following is a description of the present invention by way of an embodiment of the apparatus at .

Example four

Fig. 4 is a schematic diagram of a structure of a ue according to an embodiment of the present invention, as shown in fig. 4, the ue includes an -th processing unit 401 and a second processing unit 402.

The processing unit 401 is configured to obtain support situations of the network side for the network traffic, including a support situation of the NG-RAN for the network traffic and a support situation of the 5GC for the network traffic.

A second processing unit 402, configured to initiate a handover procedure after determining that the handover condition is satisfied according to the support situation, so as to complete the handover.

The -th processing unit 401 may obtain the support situation of the network side for the network service sent by the AMF in the registration procedure.

Specifically, processing unit 401 at may initiate a registration procedure with the NG-RAN, so that the NG-RAN reports its support for the network traffic to the AMF, and the AMF sends the support for the network traffic at the network side to processing unit 401 at .

Satisfying the handover condition may include: 5GC and NG-RAN are not supported; and, only 5GC support.

If the handover condition is satisfied, the second processing unit 402 may initiate a handover procedure, thereby completing the handover.

Specifically, the second processing unit 402 may send a service request for handover to the AMF, so that the AMF obtains handover decision information, where the handover decision information includes a support situation of the network side for the network service, determines a handover mode according to the handover decision information, and completes handover according to the handover mode.

The service request may carry a network service identifier so that the AMF knows which network service to initiate handover, etc. the handover decision information may further include subscription information.

The handover method may include PS System HO and RAT HO, and further may include CS HO.

EXAMPLE five

Fig. 5 is a schematic structural diagram of an access management function device according to an embodiment of the present invention. As shown in fig. 5, includes: a third processing unit 501.

A third processing unit 501, configured to complete handover for the UE according to a handover procedure initiated by the UE.

The switching process is initiated after the UE determines that the switching condition is met according to the acquired support condition of the network side for the network service.

The supporting situation of the network side for the network service comprises the following steps: NG-RAN support case for network traffic and 5GC support case for network traffic.

As shown in fig. 5, , the device with an access management function may further include a fourth processing unit 502, configured to send, to the UE, a support situation for the network service by the network side in the registration procedure.

The fourth processing unit 502 may obtain a network service support condition reported by the NG-RAN in the registration procedure, and further may send the network service support condition of the network side to the UE.

For the network service, if the handover condition is satisfied, e.g., neither 5GC nor NG-RAN supports, or only 5GC supports, the UE may initiate a handover procedure, and accordingly, the third processing unit 501 may obtain a service request initiated by the UE for performing handover, and obtain handover decision information, where the handover decision information includes a support condition of the network side for the network service, and further determine a handover mode according to the handover decision information, and complete handover according to the handover mode.

The service request may carry a network service identifier.

The handover decision information may include the network side support for the network service, that is, the NG-RAN support for the network service and the 5GC support for the network service, and further step may include subscription information.

Accordingly, the switching mode can be determined by combining the support condition of the network side for the network service, the subscription information and the like.

The switching mode may include: PS System HO, RAT HO, CS HO, etc.

EXAMPLE six

Fig. 6 is a schematic structural diagram of a lower -generation radio access network device according to an embodiment of the present invention, and as shown in fig. 6, the present invention includes a fifth processing unit 601.

A fifth processing unit 601, configured to report, to the AMF, a support situation of the NG-RAN for the network service, so that the AMF sends, to the UE, the support situation of the network side for the network service.

The fifth processing unit 501 may report the support condition of the NG-RAN for the network service to the AMF in the registration process.

For the specific work flow of each device embodiment, please refer to the corresponding description in the corresponding method embodiment, and further description is omitted.

FIG. 7 illustrates a block diagram of an exemplary computer system/server 12 suitable for use in implementing embodiments of the present invention the computer system/server 12 shown in FIG. 7 is merely an example and should not impose any limitations on the scope or functionality of embodiments of the present invention.

As shown in FIG. 7, the computer system/server 12 is in the form of a general purpose computing device, the components of the computer system/server 12 may include, but are not limited to or more processors (processing units) 16, memory 28, and a bus 18 that connects the various system components, including the memory 28 and the processors 16.

Bus 18 represents or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures, including, but not limited to, an Industry Standard Architecture (ISA) bus, a micro-channel architecture (MAC) bus, an enhanced ISA bus, a Video Electronics Standards Association (VESA) local bus, and a Peripheral Component Interconnect (PCI) bus, to name a few.

Computer system/server 12 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by computer system/server 12 and includes both volatile and nonvolatile media, removable and non-removable media.

Memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32, computer system/server 12 may further include other removable/non-removable, volatile/non-volatile computer system storage media storage system 34 may be provided, by way of example only, to read from and write to non-removable, non-volatile magnetic media (not shown in fig. 7, and commonly referred to as a "hard drive"). although not shown in fig. 7, magnetic disk drives may be provided for reading from and writing to removable non-volatile magnetic disks (e.g., a "floppy disk"), and optical disk drives may be provided for reading from and writing to removable non-volatile optical disks (e.g., CD-ROM, DVD-ROM, or other optical media). in these cases, each drive may be connected to bus 18 by or more data media interfaces.a memory 28 may include at least program products having sets (e.g., at least ) of program modules configured to perform the functions of embodiments of the present invention.

Program/utility 40 having sets (at least ) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, or more application programs, other program modules, and program data, each or some combination of these examples possibly including implementation of a network environment.

The computer system/server 12 may also communicate with or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), or more devices that enable a user to interact with the computer system/server 12, and/or any device (e.g., network card, modem, etc.) that enables the computer system/server 12 to communicate with or more other computing devices.this communication may be via an input/output (I/O) interface 22. furthermore, the computer system/server 12 may also communicate with or more networks (e.g., Local Area Network (LAN), domain network (WAN) and/or public network, such as the Internet) via a network adapter 20. As shown in FIG. 7, the network adapter 20 communicates with other modules of the computer system/server 12 via a bus 18. it should be understood that, although not shown, other hardware and/or software modules may be used in conjunction with the computer system/server 12, including, but not limited to, microcode, device drivers, redundant processing units, external drive arrays, disk drive systems, RAID disk storage systems, and data storage systems, etc.

The processor 16 executes various functional applications and data processing by executing the program stored in the memory 28, for example, to implement the methods in the third embodiment .

The invention also discloses computer readable storage media, which stores computer programs, and the programs will realize the method of the third embodiment - when executed by a processor.

A more specific example (a non-exhaustive list) of the computer readable storage medium includes an electrical connection having or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave .

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present invention may be written in or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, or a combination thereof, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages.

For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units into logical functional divisions may be realized in other ways.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in places, or may also be distributed on multiple network units.

In addition, the functional units in the embodiments of the present invention may be integrated into processing units, or each unit may exist alone physically, or two or more units are integrated into units.

The integrated unit implemented in the form of a software functional unit may be stored in computer-readable storage media, where the software functional unit is stored in storage media and includes instructions for computer devices (which may be personal computers, servers, or network devices) or processors (processors) to execute some steps of the methods according to the embodiments of the present invention.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

A method for realizing network service, comprising:

the user equipment UE acquires the support condition of the network side for the network service, including the support condition of the NG-RAN of the lower generation radio access network for the network service and the support condition of the 5GC of the fifth generation mobile communication core network for the network service;

and the UE determines that the switching condition is met according to the supporting condition, and then initiates a switching process so as to complete the switching.
The method of claim 1,

the UE acquiring the support situation of the network side for the network service comprises the following steps:

and the UE acquires the support condition of the network side for the network service, which is sent by the access management function equipment AMF in the registration process.
The method of claim 2,

the UE acquiring the network side support condition for the network service sent by the AMF in the registration procedure includes:

and the UE initiates a registration process to the NG-RAN so that the NG-RAN can report the support condition of the NG-RAN for the network service to the AMF, and the AMF sends the support condition of the network side for the network service to the UE.
The method of claim 1,

the satisfying of the handover condition includes:

neither the 5GC nor the NG-RAN support;

and, only the 5GC support.
The method of claim 1,

the UE-initiated handover procedure comprises:

the UE sends a service request for switching to the AMF so that the AMF can acquire switching judgment information, the switching judgment information comprises the support condition of a network side for network services, a switching mode is determined according to the switching judgment information, and switching is completed according to the switching mode.
The method of claim 5,

the service request carries a network service identifier.
The method of claim 5,

the step in the handover decision information includes subscription information.
The method of claim 5,

the switching mode comprises the following steps: PS System HO and RAT HO are switched by the packet switching domain System.
The method of claim 8,

the switching manner further includes circuit domain switching CS HO.
The method of claim 1,

the network service comprises: emergency services.
A method for realizing network service, comprising:

the access management function equipment AMF completes switching for the UE according to a switching process initiated by the user equipment UE;

the switching process is initiated after the UE determines that the switching condition is met according to the acquired network side support condition for the network service;

the network side supporting situation for the network service comprises a supporting situation of a NG-RAN of a lower generation radio access network for the network service and a supporting situation of a core network 5GC of a fifth generation mobile communication for the network service.
The method of claim 11,

the AMF, according to the handover procedure initiated by the UE, further steps include, before completing handover for the UE:

and the AMF sends the supporting situation of the network side for the network service to the UE in the registration process.
The method of claim 12,

before the AMF sends the network side support for the network service to the UE in the registration procedure, step includes:

and the AMF acquires the support condition of the NG-RAN for network service reported by the NG-RAN in the registration process.
The method of claim 11,

the satisfying of the handover condition includes:

neither the 5GC nor the NG-RAN support;

and, only the 5GC support.
The method of claim 11,

the AMF completes the switching for the UE according to the switching process initiated by the UE, and comprises the following steps:

the AMF acquires a service request initiated by the UE for switching;

the AMF acquires switching judgment information, the switching judgment information comprises the support condition of a network side for network services, a switching mode is determined according to the switching judgment information, and switching is completed according to the switching mode.
The method of claim 15,

the service request carries a network service identifier.
The method of claim 15,

the step in the handover decision information includes subscription information.
The method of claim 15,

the switching mode comprises the following steps: PS System HO and RAT HO are switched by the packet switching domain System.
The method of claim 18,

the switching manner further includes circuit domain switching CS HO.
The method of claim 11,

the network service comprises: emergency services.
A method for realizing network service, comprising:

the sub substitute the wireless access network NG-RAN to report the self supporting situation of the network service to the access management function device AMF, so that the AMF sends the supporting situation of the network side to the user equipment UE;

the network side support for the network service comprises: the support of the NG-RAN for network traffic and the support of the fifth generation mobile communication core network 5GC for network traffic.
The method of claim 21,

the report of the support condition of the network service to the AMF by the NG-RAN comprises the following steps:

in the registration process, the NG-RAN reports its own support situation for the network service to the AMF.
kinds of user equipment, comprising a processing unit and a second processing unit;

the processing unit is used to obtain the network service support situation of the network side, including the network service support situation of the NG-RAN of the lower generation radio access network and the network service support situation of the core network 5GC of the fifth generation mobile communication;

and the second processing unit is used for initiating a switching process after determining that the switching condition is met according to the support condition so as to complete the switching.
The user equipment of claim 23,

the processing unit obtains the support situation of the network side for the network service sent by the access management function device AMF in the registration process.
The user equipment of claim 24,

the th processing unit initiates a registration process to the NG-RAN, so that the NG-RAN reports its support for network traffic to the AMF, and the AMF sends the support for network traffic on the network side to the th processing unit.
The user equipment of claim 23,

the satisfying of the handover condition includes:

neither the 5GC nor the NG-RAN support;

and, only the 5GC support.
The user equipment of claim 23,

the second processing unit sends a service request for switching to the AMF so that the AMF obtains switching judgment information, the switching judgment information comprises the support condition of a network side for network services, a switching mode is determined according to the switching judgment information, and switching is completed according to the switching mode.
The user equipment of claim 27,

the service request carries a network service identifier.
The user equipment of claim 27,

the step in the handover decision information includes subscription information.
The user equipment of claim 27,

the switching mode comprises the following steps: PS System HO and RAT HO are switched by the packet switching domain System.
The user equipment of claim 30,

the switching manner further includes circuit domain switching CS HO.
The user equipment of claim 23,

the network service comprises: emergency services.
kinds of access management function equipment, which is characterized in that it comprises a third processing unit;

the third processing unit is configured to complete handover for the UE according to a handover procedure initiated by the UE;

the switching process is initiated after the UE determines that the switching condition is met according to the acquired network side support condition for the network service;

the network side supporting situation for the network service comprises a supporting situation of a NG-RAN of a lower generation radio access network for the network service and a supporting situation of a core network 5GC of a fifth generation mobile communication for the network service.
The access management function device of claim 33,

the step of the access management function device includes a fourth processing unit;

the fourth processing unit is configured to send, to the UE, a support situation of a network side for a network service in a registration procedure.
The access management function device of claim 34,

the fourth processing unit is further for,

and acquiring the support condition of the NG-RAN for network service reported by the NG-RAN in the registration process.
The access management function device of claim 33,

the satisfying of the handover condition includes:

neither the 5GC nor the NG-RAN support;

and, only the 5GC support.
The access management function device of claim 33,

the third processing unit obtains a service request initiated by the UE for switching, obtains switching judgment information, wherein the switching judgment information comprises the support condition of a network side for network services, determines a switching mode according to the switching judgment information, and completes switching according to the switching mode.
The access management function device of claim 37,

the service request carries a network service identifier.
The access management function device of claim 37,

the step in the handover decision information includes subscription information.
The access management function device of claim 37,

the switching mode comprises the following steps: PS System HO and RAT HO are switched by the packet switching domain System.
The access management function device of claim 40,

the switching manner further includes circuit domain switching CS HO.
The access management function device of claim 33,

the network service comprises: emergency services.
A lower generation radio access network device, comprising a fifth processing unit;

the fifth processing unit is configured to report a supporting condition of a network service of generation radio access network NG-RAN to an access management function device AMF, so that the AMF sends the supporting condition of a network side for the network service to a user equipment UE;

the network side support for the network service comprises: the support of the NG-RAN for network traffic and the support of the fifth generation mobile communication core network 5GC for network traffic.
The next generation radio access network device of claim 43,

and the fifth processing unit reports the support condition of the NG-RAN for the network service to the AMF in a registration process.
a computer device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the method of any of claims 1-22 as recited in .
computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any of claims 1-22, wherein the method is carried out according to any of the claims.