CN112449337A - Roaming control method and device, UDM (Universal data management) equipment and storage medium - Google Patents
Roaming control method and device, UDM (Universal data management) equipment and storage medium Download PDFInfo
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- 238000004590 computer program Methods 0.000 claims description 13
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- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
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Abstract
The application discloses a roaming control method and device, a UDM device and a storage medium. The method comprises the following steps: a first communication node receives a first message sent by a second communication node, wherein the first message comprises a Public Land Mobile Network Identification (PLMNID); and the first communication node matches a roaming control scheme for the terminal equipment according to the PLMNID and the roaming template signed by the terminal equipment.
Description
Technical Field
The present application relates to wireless communication networks, and for example, to a roaming control method, apparatus, Unified Data Management (UDM) device, and storage medium.
Background
Roaming is a function in which a mobile station leaves a service area registered by itself and, after moving to another service area, the mobile communication system can still provide services to the mobile station. However, currently, in the fifth Generation mobile communication network (5th-Generation, 5G), a method of detecting the roaming control of the terminal device is not clearly specified.
Disclosure of Invention
The application provides a roaming control method and device, a UDM device and a storage medium, which can carry out roaming control on a terminal device based on a roaming template signed by the terminal device so as to adapt to various use scenes of the terminal device.
An embodiment of the present application provides a roaming control method, including:
a first communication node receives a first message sent by a second communication node, wherein the first message comprises a Public Land Mobile Network Identification (PLMNID);
and the first communication node matches a roaming control scheme for the terminal equipment according to the PLMNID and the roaming template signed by the terminal equipment.
An embodiment of the present application provides a roaming control apparatus, including: the device comprises a receiving module and a processing module;
a receiving module, configured to receive a first message sent by a second communication node, where the first message includes a public land mobile network identifier PLMNID;
and the processing module is used for matching the roaming control scheme for the terminal equipment according to the PLMNID and the roaming template signed by the terminal equipment.
An embodiment of the present application provides a unified data management UDM device, including: a processor for implementing the method of any of the above embodiments when executing the computer program.
The embodiment of the present application further provides a computer-readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the method of any of the above embodiments.
With regard to the above embodiments and other aspects of the present application and implementations thereof, further description is provided in the accompanying drawings description, detailed description and claims.
Drawings
Fig. 1 is a flowchart illustrating a roaming control method according to an embodiment;
fig. 2 is a flowchart illustrating another roaming control method according to an embodiment;
fig. 3 is a flowchart illustrating a roaming control method according to another embodiment;
fig. 4 is a schematic structural diagram of a roaming control device according to an embodiment;
fig. 5 is a schematic structural diagram of another roaming control apparatus according to an embodiment;
fig. 6 is a schematic structural diagram of a UDM device according to an embodiment.
Detailed Description
Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.
Roaming is a function in which a mobile station leaves a service area registered by itself and, after moving to another service area, the mobile communication system can still provide services to the mobile station. For 5G roaming control, a few are described in the third Generation Partnership Project (3 GPP) Technical Specification (TS) 29503: section 5.3.2.2.2 Core Access and Mobility Management Function (AMF) 3GPP Access registration describes that "403 Forbidden" is returned if roaming restriction is checked, but does not describe in detail how to detect whether the terminal device should be roaming restricted or not. In addition, roaming restrictions need to be checked in the flows of authentication information query, AMF non-3 GPP access registration, Session Management Function (SMF) access registration, Session Management Storage network Function (SMSF) 3GPP access registration, SMSF non-3 GPP access registration, and the like.
Embodiments of the present application provide a mobile communication network (including, but not limited to, a fifth Generation mobile communication network (5th-Generation, 5G)), where a network architecture of the network may include a core network device (e.g., a UDM device), a network side device (e.g., one or more types of base stations, transmission nodes, Access nodes (AP, Access points), relays, Node Bs (NB), Terrestrial Radio Access (UTRA, Universal Terrestrial Radio Access), Evolved Terrestrial Radio Access (EUTRA, Evolved Universal Terrestrial Radio Access), and a terminal device (User Equipment (UE), a User Equipment data card, a relay (relay), a mobile device, and the like). In the embodiment of the present application, a roaming control method and apparatus operable in the above network architecture, a UDM device and a storage medium are provided, which can perform roaming control on a terminal device based on a roaming template signed by the terminal device, so as to adapt to various usage scenarios of the terminal device. The operating environment of the roaming control method provided in the embodiment of the present application is not limited to the network architecture.
The terms "system" and "network" are often used interchangeably in this application. The terms "first," "second," "third," and the like in the description and claims of this application and in the drawings are used for distinguishing between different objects and not for limiting a particular order. The following embodiments of the present application may be implemented individually, or in combination with each other, and the embodiments of the present application are not limited specifically.
The following describes a roaming control method and apparatus, and technical effects thereof.
Fig. 1 is a flowchart illustrating a roaming control method according to an embodiment, and as shown in fig. 1, the method provided in this embodiment is applied to a core network device (e.g., a UDM device).
S110, the first communication node receives a first message sent by the second communication node, where the first message includes a Public Land Mobile Network Identity (plmn id).
The first message is a message which is initiated by the terminal equipment and is sent to the second communication node, and the second communication node forwards the first message to the first communication node after receiving the first message sent by the terminal equipment.
And S120, the first communication node matches a roaming control scheme for the terminal equipment according to the PLMNID and the roaming template signed by the terminal equipment.
The terminal device can sign a roaming template at the same time, each roaming template comprises at least two roaming sub-templates, different roaming sub-templates support different roaming control granularities, and the roaming control granularity can be at least divided into a Network level and a Network Function (NF) level.
In an embodiment, the network level may be applicable to flows such as AMF 3GPP access registration, AMF non-3 GPP access registration, authentication information query, SMF access registration, SMSF 3GPP access registration, SMSF non-3 GPP access registration, and the like; the NF level can be applied to flows such as AMF 3GPP access registration, AMF non-3 GPP access registration and the like.
Fig. 2 is a schematic flowchart of another roaming control method according to an embodiment, and as shown in fig. 2, the method provided in this embodiment is described by taking a first communication node as a UDM device and a second communication node as an Authentication Server Function (AUSF) device, and the method provided in this embodiment is applicable to an Authentication process of an AUSF, and includes the following steps.
S210, the UDM equipment receives an authentication request message sent by the AUSF equipment, wherein the authentication request message comprises the PLMNID.
In an embodiment, the authentication request message is initiated by the terminal device and sent to the AUSF device, and the AUSF device forwards the authentication request message to the UDM device after receiving the authentication request message sent by the terminal device.
The authentication request message does not normally carry the PLMNID field directly but instead contains it in the ServingNetworkName field. According to the 29503 protocol, section a.4numjueau API defines:
ServingNetworkName:
type:string
pattern:'^5G:mnc[0-9]{3}[.]mcc[0-9]{3}[.]3gppnetwork[.]org$'
therefore, the UDM device can parse out the Mobile device Country Code (MCC) and the Mobile device Network Code (MNC) from the Mobile device Country Code (MCC), and thus obtain the plmn id.
And S220, the UDM equipment confirms whether the roaming control scheme matched with the terminal equipment is included in the second roaming sub-template or not according to the PLMNID.
The terminal device may sign a roaming template at the same time, and assume that the template identifier of the roaming template signed by the terminal device at the current time is 1. The roaming template may include a first roaming sub-template and a second roaming sub-template, the roaming template being adapted for network-level roaming control granularity. The first roaming sub-template may be as shown in table 1 below, and the second roaming sub-template may be as shown in table 2 below.
TABLE 1
| Template identification | DEFTRULE |
| 1 | RESTRICT (Limit) |
The first roaming sub-template shown in table 1 may generally be a default rule for roaming control.
TABLE 2
The second roaming sub-template shown in table 2 may generally support network-level roaming control granularity.
For the authentication process of the AUSF, the UDM equipment can preferentially match in the second roaming sub-template, and if the matching is successful, the matching is processed according to the RULE in the matching record; and if the matching fails, processing according to the default rule of the first roaming sub-template.
And S230, if the second roaming sub-template comprises the roaming control scheme matched with the terminal equipment, the UDM equipment selects the roaming control scheme.
S240, if the second roaming sub-template does not include the roaming control scheme matching with the terminal device, the UDM device selects the roaming control scheme of the first roaming sub-template.
If the authentication request message initiated by the terminal equipment is from the network with PLMNID 46001, referring to the table 2, the UDM equipment selects a rule RESTRICT with the sequence number 1;
if the authentication request message initiated by the terminal equipment is from the network with PLMNID 46003, referring to table 2, the UDM equipment selects a rule PERMISSION with sequence number 2;
if the authentication request message initiated by the terminal device is from the network with PLMNID 46002, refer to table 2, and at this time, table 2 does not include the roaming control scheme matched with the terminal device, the UDM device selects the default rule rescitc specified in table 1.
Further exemplarily, fig. 3 is a schematic flowchart of another roaming control method provided by an embodiment, and as shown in fig. 3, the method provided by this embodiment is described by taking a first communication node as a UDM device and a second communication node as an AMF device as an example.
S310, the UDM device receives a registration request message sent by the AMF device, where the registration request message includes Globally Unique Core Access and mobile Management Function Identifier (GUAMI) information, and the GUAMI information includes a plmn id and Core Access and mobile Management Function Identifier (AMFID).
In an embodiment, the registration request message may be a 3GPP access registration request message or a non-3 GPP access registration request message, which is not limited in this embodiment of the present application. The registration request message is initiated by the terminal device and sent to the AMF device, and the AMF device forwards the registration request message to the UDM device after receiving the registration request message sent by the terminal device.
In an embodiment, the AMFID includes a core access and mobility management function area identification (AMF area ID (8 bits)), a core access and mobility management function set identification (AMF set ID (10 bits)), and a core access and mobility management function pointer (AMF pointer (6 bits)). AMFID is a string, as specified in subclause 2.10.1 of 3GPP TS 23.003[7 ]. AMFID is encoded as a string of 6 hexadecimal characters (i.e., 24 bits), mode: '[ A-Fa-f0-9] {6} $'. For example, in the GUAMI information, PLMNID is 46003, AMFID is 0a0282, and the UDM device may parse amfrigen by AMFID is 0a0282 to obtain amfrigen is 10, and AMFSet is 2.
And S320, the UDM equipment confirms whether the third roaming sub-template comprises a roaming control scheme matched with the terminal equipment or not according to the PLMNID and the AMFID.
The terminal device may sign a roaming template at the same time, and assume that the template identifier of the roaming template signed by the terminal device at the current time is 1. The roaming template comprises a first roaming sub-template, a second roaming sub-template and a third roaming sub-template, and the roaming template is suitable for NF-level roaming control granularity. The first roaming sub-template may be as shown in table 3 below, the second roaming sub-template may be as shown in table 4 below, and the third roaming sub-template may be as shown in table 5 below.
TABLE 3
| Template identification | DEFTRULE |
| 1 | RESTRICT (Limit) |
The first roaming sub-template shown in table 3 may be a default rule for roaming control in general.
TABLE 4
| Serial number | Template identification | PLMNID | RULE |
| 1 | 1 | 46001 | RESTRICT (Limit) |
| 2 | 1 | 46003 | PERMISSION (allowable) |
The second roaming sub-template shown in table 4 may generally support network-level roaming control granularity.
TABLE 5
| Serial number | Template identification | PLMNID | AMFRegion | AMFSet | RULE |
| 3 | 1 | 46001 | 255 | 1023 | PERMISSION (allowable) |
| 4 | 1 | 46002 | 10 | 2 | RESTRICT (Limit) |
| 5 | 1 | 46002 | 13 | RESTRICT (Limit) |
The third roaming sub-template shown in table 5 may generally support network-level and NF-level roaming control granularities.
For the registration process of the AMF, the UDM equipment can be preferentially matched in the third roaming sub-template, and if the matching is successful, the matching is processed according to the RULE in the matching record; and if the matching fails, matching in the second roaming sub-template, processing according to the RULE in the matching record when the matching is successful, and processing according to the default RULE of the first roaming sub-template when the matching fails.
And S330, if the third roaming sub-template comprises a roaming control scheme matched with the terminal equipment, selecting the roaming control scheme by the UDM equipment.
S340, if the third roaming sub-template does not include the roaming control scheme matching the terminal device, the UDM device determines whether the second roaming sub-template includes the roaming control scheme matching the terminal device according to the PLMNID and the AMFID.
And S350, if the second roaming sub-template comprises the roaming control scheme matched with the terminal equipment, the UDM equipment selects the roaming control scheme.
And S360, if the second roaming sub-template does not comprise the roaming control scheme matched with the terminal equipment, the UDM equipment selects the roaming control scheme of the first roaming sub-template.
If the registration request message initiated by the terminal equipment is from the network with PLMNID of 46002, AMFREgeion is 10, AMFSet is 2, referring to table 5, the UDM equipment selects rule RESTRICT with serial number of 4;
if the registration request message initiated by the terminal device comes from the network with PLMNID of 46003, amfrection is 10, AMFSet is 2, refer to table 5, at this time, table 5 does not include the roaming control scheme matched with the terminal device, refer to table 4 continuously, and the UDM device selects a rule PERMISSION with sequence number of 2;
if the registration request message initiated by the terminal equipment is from the network with PLMNID of 46002, AMFREgeion is 13, AMFSet is 3, referring to table 5, the UDM equipment selects rule RESTRICT with serial number of 5;
if the registration request message initiated by the terminal device comes from the network with PLMNID of 46001, amfregemon is 255, AMFSet is 1023, referring to table 5, the UDM device selects a rule PERMISSION with sequence number of 3;
if the registration request message initiated by the terminal device comes from the network with PLMNID 46004, amfrection is 255, AMFSet is 1023, refer to table 5, where table 5 does not include the roaming control scheme matching the terminal device, and continue to refer to table 4, where table 4 does not include the roaming control scheme matching the terminal device, then the UDM device selects the default rule rescitc specified in table 3.
On the basis of the above embodiment, the method may further include the following step for changing the scenario of the roaming template for the terminal device.
And S370, after the terminal equipment changes the roaming template, the UDM equipment sends a deregistration request message to the AMF equipment.
In an embodiment, the deregistration response field in the deregistration request message is filled with "registration _ REQUIRED" to request the AMF device to reinitiate the registration procedure.
And S380, the UDM device receives a re-registration request message sent by the AMF device, wherein the re-registration request message comprises GUIMI information, and the GUIMI information comprises PLMNID and AMFID.
And after the UDM equipment receives the re-registration request message sent by the AMF equipment, the UDM equipment matches the roaming control scheme for the terminal equipment again.
An embodiment of the present application provides a roaming control method, including: a first communication node receives a first message sent by a second communication node, wherein the first message comprises a Public Land Mobile Network Identification (PLMNID); and the first communication node matches a roaming control scheme for the terminal equipment according to the PLMNID and the roaming template signed by the terminal equipment. According to the method and the device, the terminal equipment can be subjected to roaming control based on the roaming template signed by the terminal equipment so as to adapt to various use scenes of the terminal equipment.
Fig. 4 is a schematic structural diagram of a roaming control apparatus according to an embodiment, where the roaming control apparatus may be configured in a first communication node, as shown in fig. 4, including: a receiving module 10 and a processing module 11.
A receiving module 10, configured to receive a first message sent by a second communication node, where the first message includes a public land mobile network identifier PLMNID;
the processing module 11 is configured to match a roaming control scheme for the terminal device according to the PLMNID and a roaming template signed by the terminal device.
The roaming control device provided in this embodiment is a roaming control method for implementing the foregoing embodiments, and the implementation principle and technical effect of the roaming control device provided in this embodiment are similar, and are not described herein again.
In an embodiment, the receiving module 10 is configured to receive an authentication request message sent by the second communication node, where the authentication request message includes the PLMNID.
In one embodiment, the roaming template comprises a first roaming sub-template and a second roaming sub-template;
the processing module 11 is configured to confirm that the roaming control scheme matched with the terminal device is included in the second roaming sub-template according to the PLMNID; or, according to the PLMNID, determining that the second roaming sub-template does not include the roaming control scheme matched with the terminal equipment; and selecting a roaming control scheme of the first roaming sub-template.
In an embodiment, the receiving module 10 is configured to receive a registration request message sent by the second communication node, where the registration request message includes globally unique core access and mobility management function identification, GUAMI information, and the GUAMI information includes a PLMNID and a core access and mobility management function identification, AMFID.
In one embodiment, the roaming template comprises a first roaming sub-template, a second roaming sub-template and a third roaming sub-template;
the processing module 11 is configured to confirm that the third roaming sub-template includes the roaming control scheme matched with the terminal device according to the PLMNID and the AMFID; or, according to the PLMNID and the AMFID, determining that the third roaming sub-template does not comprise the roaming control scheme matched with the terminal equipment; confirming that the second roaming sub-template comprises a roaming control scheme matched with the terminal equipment; or, according to the PLMNID and the AMFID, determining that the third roaming sub-template and the second roaming sub-template do not include a roaming control scheme matched with the terminal equipment; and selecting a roaming control scheme of the first roaming sub-template.
In an embodiment, with reference to fig. 4, fig. 5 is a schematic structural diagram of another roaming control apparatus provided in an embodiment, further including: a sending module 12.
The sending module is set to send a registration request message to the second communication node after the terminal equipment changes the roaming template;
the receiving module 10 is further configured to receive a re-registration request message sent by the second communication node, where the re-registration request message includes GUAMI information, and the GUAMI information includes a PLMNID and an AMFID.
In one embodiment, the AMFID includes a core access and mobility management function area identification, a core access and mobility management function set identification, and a core access and mobility management function pointer.
An embodiment of the present application further provides a UDM device, including: a processor for implementing a method as provided in any of the embodiments of the present application when executing a computer program. Fig. 6 is a schematic structural diagram of an UDM device according to an embodiment, where as shown in fig. 6, the UDM device includes a processor 60, a memory 61, and a communication interface 62; the number of processors 60 in the UDM device may be one or more, and one processor 60 is taken as an example in fig. 6; the processor 60, the memory 61, and the communication interface 62 in the UDM device may be connected by a bus or other means, and fig. 6 illustrates an example of connection by a bus. A bus represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures.
The memory 61, as a computer-readable storage medium, may be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the methods in the embodiments of the present application. The processor 60 implements the above-described roaming control method by executing software programs, instructions and modules stored in the memory 61 to perform at least one functional application of the UDM device and data processing.
The memory 61 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 61 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 61 may include memory remotely located from the processor 60, which may be connected to the UDM device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The communication interface 62 may be configured for the reception and transmission of data.
Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the method provided in any of the embodiments of the present application.
The computer storage media of the embodiments of the present application may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. Computer-readable storage media include (a non-exhaustive list): an electrical connection having one 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), a 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. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
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. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
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, Radio Frequency (RF), etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, Ruby, Go, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of Network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It will be clear to a person skilled in the art that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a car mounted mobile station.
In general, the various embodiments of the application may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
Embodiments of the application may be implemented by a data processor of a mobile device executing computer program instructions, for example in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.
Any logic flow block diagrams in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on a memory. The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, Read Only Memory (ROM), Random Access Memory (RAM), optical storage devices and systems (digital versatile disks, DVDs, or CD discs), etc. The computer readable medium may include a non-transitory storage medium. The data processor may be of any type suitable to the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Programmable logic devices (FGPAs), and processors based on a multi-core processor architecture.
Claims (10)
1. A roaming control method, comprising:
a first communication node receives a first message sent by a second communication node, wherein the first message comprises a Public Land Mobile Network Identification (PLMNID);
and the first communication node matches a roaming control scheme for the terminal equipment according to the PLMNID and a roaming template signed by the terminal equipment.
2. The method of claim 1, wherein the first communication node receiving the first message sent by the second communication node comprises:
and the first communication node receives an authentication request message sent by the second communication node, wherein the authentication request message comprises the PLMNID.
3. The method of claim 2, wherein the roaming template comprises a first roaming sub-template and a second roaming sub-template;
the first communication node matches a roaming control scheme for the terminal equipment according to the PLMNID and a roaming template signed by the terminal equipment, and the method comprises the following steps:
the first communication node confirms that the second roaming sub-template comprises a roaming control scheme matched with the terminal equipment according to the PLMNID; or,
the first communication node confirms that the second roaming sub-template does not comprise a roaming control scheme matched with the terminal equipment according to the PLMNID; the first communication node selects a roaming control scheme of the first roaming sub-template.
4. The method of claim 1, wherein the first communication node receiving the first message sent by the second communication node comprises:
the first communication node receives a registration request message sent by the second communication node, wherein the registration request message comprises globally unique core access and mobility management function identification (GUAMI) information, and the GUAMI information comprises the PLMNID and the core access and mobility management function identification (AMFID).
5. The method of claim 4, wherein the roaming template comprises a first roaming sub-template, a second roaming sub-template, and a third roaming sub-template;
the first communication node matches a roaming control scheme for the terminal equipment according to the PLMNID and a roaming template signed by the terminal equipment, and the method comprises the following steps:
the first communication node confirms that a roaming control scheme matched with the terminal equipment is included in the third roaming sub-template according to the PLMNID and the AMFID; or,
the first communication node confirms that the third roaming sub-template does not comprise a roaming control scheme matched with the terminal equipment according to the PLMNID and the AMFID; the first communication node confirms that the second roaming sub-template comprises a roaming control scheme matched with the terminal equipment; or,
the first communication node confirms that neither the third roaming sub-template nor the second roaming sub-template includes a roaming control scheme matched with the terminal equipment according to the PLMNID and the AMFID; the first communication node selects a roaming control scheme of the first roaming sub-template.
6. The method of claim 4, further comprising:
after the terminal equipment changes the roaming template, the first communication node sends a registration request message to the second communication node;
the first communication node receives a re-registration request message sent by the second communication node, wherein the re-registration request message comprises GUAMI information, and the GUAMI information comprises the PLMNID and the AMFID.
7. The method of claim 4, wherein the AMFID comprises a core Access and mobility management function area identifier, a core Access and mobility management function set identifier, and a core Access and mobility management function pointer.
8. A roaming control device, comprising: the device comprises a receiving module and a processing module;
the receiving module is configured to receive a first message sent by a second communication node, where the first message includes a public land mobile network identifier PLMNID;
and the processing module is configured to match a roaming control scheme for the terminal device according to the PLMNID and a roaming template signed by the terminal device.
9. A unified data management, UDM, device, comprising: a processor for implementing a roaming control method as claimed in any one of claims 1-7 when executing a computer program.
10. A computer-readable storage medium, storing a computer program, wherein the computer program, when executed by a processor, implements a roaming control method as recited in any one of claims 1-7.
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| CN201910824191.6A CN112449337B (en) | 2019-09-02 | 2019-09-02 | Roaming control method and device, UDM (Universal description language) equipment and storage medium |
| PCT/CN2020/113083 WO2021043178A1 (en) | 2019-09-02 | 2020-09-02 | Roaming control method and apparatus, udm device, and storage medium |
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