CN116074837A

CN116074837A - User identifier acquisition method and device

Info

Publication number: CN116074837A
Application number: CN202111287586.0A
Authority: CN
Inventors: 李婷; 孙奇; 黄金日
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2023-05-05
Also published as: WO2023078306A1

Abstract

The invention provides a method and a device for acquiring a user identifier, wherein the method for acquiring the user identifier comprises the following steps: the AMF provides user identification service for the network equipment according to the requirement of the network equipment, supports the network equipment to acquire other types of user identifications in the AMF by utilizing the existing user identifications so as to meet the requirement of association between a service side and the network side user identifications, and is convenient for the network equipment to subscribe network side user-level information or import the service side user-level information into the network by utilizing the user identifications acquired from the AMF, thereby carrying out certainty guarantee for user-level service.

Description

User identifier acquisition method and device

Technical Field

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and a device for acquiring a user identifier.

Background

Along with the gradual diversity of industry application scenes of 5G, user-level network information with low time delay for specific services is required to be provided at the network edge or service-side user-level information is imported for deterministic service guarantee by the network. Because the network and the service side carry different types of user identifications, how to associate and uniquely identify the user with the different types of user identifications is one of the core problems to be solved at present.

In the wireless side user level information opening scheme, under the Local (Local) NEF (Network Exposure Function, network opening function) deployment scenario, 3GPP completes the association of user identification at the edge side through the interaction of a core network Trusted (AF) Application Function and a core network function, and the user identification used for association is a UE External ID carried by a service side and a wireless side Trace ID. The scheme requires modification of Trace policy in the AMF (Access and Mobility Management Function, access and mobility management functions) and configuration of Trace function for the Local NEF, which greatly alters the existing mechanism of the core network.

As described above, the drawbacks of the prior art are as follows: in the 3GPP wireless side user-level information opening scheme, trace ID is associated with UE External ID, and the core network mechanism is changed greatly.

Disclosure of Invention

The embodiment of the invention provides a method and a device for acquiring a user identifier, which are used for solving the problem that the service side and the network side user identifier are difficult to associate in the prior art.

In order to solve the technical problems, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a method for obtaining a user identifier, which is applied to an AMF, where the method includes:

Receiving a user identifier acquisition message sent by network equipment;

and providing the target user identification for the network equipment according to the user identification acquisition message.

Optionally, the network device belongs to a network trusted domain.

Optionally, the network device includes at least one of:

a core network trusted application function AF;

a network opening function, NEF, comprising: the core network NEF and/or a local NEF sinking to the network edge;

session management function SMF;

policy control function PCF;

a unified data management function UDM;

a network slice selection function NSSF;

a network data analysis function NWDAF;

a local management function LMF;

a mobile positioning center gateway GLMC;

network management functions/systems;

wireless intelligent controller RIC, including non-real time RIC and/or near real time RIC.

Optionally, the user identifier obtaining message at least includes a first user identifier and a type of a target user identifier, where the target user identifier is a user identifier associated with the first user identifier and different in type.

Optionally, the type of the first user identifier and/or the target user identifier includes at least one of the following:

subscribing to a permanent identity SUPI;

the user conceals the identification SUCI;

Globally unique temporary user identification GUTI;

a general public user identity GPSI;

permanent device identification PEI;

a next generation application protocol NGAP identification of a wireless access network terminal;

an access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

Optionally, the user identifier obtaining message is:

a user identification request message; alternatively, the user identifies a subscription message.

Optionally, the user identifier obtaining message is a user identifier request message;

providing the target user identification to the network equipment according to the user identification acquisition message comprises the following steps:

inquiring the target user identifier associated with the first user identifier according to the types of the first user identifier and the target user identifier;

and sending a user identification response message to the network equipment, wherein the response message comprises the target user identification associated with the first user identification.

Optionally, the user identifier acquisition message is a user identifier subscription message;

transmitting a user identification response message to the network equipment;

And sending a notification message to the network equipment, wherein the notification message comprises the target user identification associated with the first user identification.

Optionally, after sending the notification message to the network device, the method further includes:

and when the target user identifier is updated, sending a notification message to the network equipment, wherein the notification message contains the updated target user identifier.

In a second aspect, an embodiment of the present invention provides a method for obtaining a user identifier, which is applied to a network device, where the method includes:

sending a user identification acquisition message to the AMF;

and receiving the target user identification provided by the AMF.

Optionally, the network device belongs to a network trusted domain.

Optionally, the network device includes at least one of:

the core network receives the AF;

NEF, comprising: the core network NEF and/or a local NEF sinking to the network edge;

SMF；

PCF；

UDM；

NSSF；

NWDAF；

LMF；

GLMC；

network management functions/systems;

RIC, including non-real-time RIC and/or near real-time RIC.

SUPI；

SUCI；

GUTI；

GPSI；

PEI；

a wireless access network terminal NGAP identification;

an access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

Optionally, the user identifier obtaining message is:

the receiving the target user identification provided by the AMF comprises the following steps:

and receiving a user identification response message sent by the AMF, wherein the response message comprises the target user identification associated with the first user identification.

receiving a user identification response message sent by the AMF;

and receiving a notification message sent by the AMF, wherein the notification message comprises the target user identification associated with the first user identification.

Optionally, after receiving the notification message sent by the AMF, the method further includes:

and when the target user identifier is updated, receiving a notification message sent by the AMF, wherein the notification message comprises the updated target user identifier.

In a third aspect, an embodiment of the present invention provides an AMF, including:

the first receiving module is used for receiving a user identification acquisition message sent by the network equipment;

and the first sending module is used for obtaining the message according to the user identification and providing the target user identification for the network equipment.

In a fourth aspect, an embodiment of the present invention provides an AMF, including: a transceiver and a processor;

the transceiver is used for receiving a user identification acquisition message sent by the network equipment; and providing the target user identification for the network equipment according to the user identification acquisition message.

In a fifth aspect, an embodiment of the present invention provides a network device, including:

the first sending module is used for sending a user identification acquisition message to the AMF;

and the first receiving module is used for receiving the target user identification provided by the AMF.

In a sixth aspect, an embodiment of the present invention provides a network device, including: a transceiver and a processor;

the transceiver is used for sending a user identification acquisition message to the AMF; and receiving the target user identification provided by the AMF.

In a seventh aspect, an embodiment of the present invention provides an AMF, including: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the user identification acquisition method as described in the first aspect above.

In an eighth aspect, an embodiment of the present invention provides a network device, including: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the user identification acquisition method as described in the second aspect above.

In a ninth aspect, an embodiment of the present invention provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, where the computer program when executed by a processor implements the steps of the method for obtaining a user identifier according to the first aspect; alternatively, the computer program when executed by a processor implements the steps of the user identification acquisition method described in the second aspect.

In the embodiment of the invention, the AMF provides the user identification service for the network equipment according to the requirement of the network equipment, and supports the network equipment to acquire other types of user identifications in the AMF by utilizing the existing user identifications so as to meet the requirement of the association between the service side and the network side user identifications, so that the network equipment can subscribe network side user-level information or guide the service side user-level information into the network by utilizing the user identifications acquired from the AMF, and the certainty of the user-level service is ensured.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a flowchart of a method for acquiring a user identifier performed by an AMF according to an embodiment of the invention;

fig. 2 is a flowchart of a method for obtaining a user identifier by requesting a response service according to an embodiment of the present invention;

fig. 3 is a flowchart of a specific reference case of a method for obtaining a user id through a request response service according to an embodiment of the present invention;

FIG. 4 is a flowchart illustrating a method for acquiring a user identifier through subscribing to a notification service according to an embodiment of the present invention;

fig. 5 is a flowchart of a specific reference case of a method for acquiring a user identifier through subscription notification service according to an embodiment of the present invention;

fig. 6 is a flowchart of a method for obtaining a user identifier performed by a network device according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of an AMF according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of an AMF according to another embodiment of the present invention;

fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network device according to another embodiment of the present invention;

FIG. 11 is a schematic diagram of an AMF according to another embodiment of the present invention;

fig. 12 is a schematic structural diagram of a network device according to another embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1, an embodiment of the present invention provides a method for obtaining a user identifier, which is applied to an AMF, and the method includes:

step 11: receiving a user identifier acquisition message sent by network equipment;

step 12: and providing the target user identification for the network equipment according to the user identification acquisition message.

The network device may be an entity device in the network or may be a network function.

In the embodiment of the invention, the AMF stores the association relation of the user identifiers of various types.

In the embodiment of the invention, the AMF provides the user identification service for the network equipment according to the requirement of the network equipment, and the network equipment is supported to acquire other types of user identifications in the AMF by utilizing the existing user identifications so as to meet the requirement of the association between the service side and the network side user identifications, so that the network equipment can subscribe network side user-level information or guide the service side user-level information into the network by utilizing the user identifications acquired from the AMF, and the certainty of the user-level service is ensured.

In the embodiment of the invention, the network equipment belongs to a network trusted domain, namely the network equipment is managed and/or trusted by an operator.

In an embodiment of the present invention, optionally, the network device includes at least one of the following:

-core network trusted application functions (Application Function, AF);

a network opening function (Network Exposure Function, NEF) comprising: the core network NEF and/or a local NEF sinking to the network edge;

session management functions (Session Management Function, SMF);

a policy control function (Policy Control Function, PCF);

a unified data management function (Unified Data Management, UDM);

A network slice selection function (Network Slice Selection Function, NSSF);

a network data analysis function (Network Data Analytics Function, NWDAF);

a local management function (Location Management Function, LMF);

a mobile positioning center gateway (Gateway Mobile Location Center, GLMC);

network management functions/systems;

wireless intelligent controllers (RAN Intelligent Controller, RIC), including non-real-time RIC and/or near real-time RIC.

In this embodiment of the present invention, optionally, the user identifier obtaining message at least includes a first user identifier and a type of a target user identifier, where the target user identifier is a user identifier associated with the first user identifier and different in type.

In an embodiment of the present invention, optionally, the type of the first user identifier and/or the target user identifier includes at least one of the following:

subscription permanent identity (Subscription Permanent Identifier, SUPI);

a user hidden identity (Subscription Concealed Identifier, sui);

a globally unique temporary user identity (Globally Unique Temporary Identifier, GUTI), which may be, for example, 5G-GUTI;

a general public user identity (Generic Public Subscription Identifier, GPSI);

Permanent device identification (Permanent Equipment Identifier, PEI);

a radio access network terminal next generation application protocol (Next Generation Application Protocol, NGAP) identity (RAN UE NGAP ID);

an access and mobility management function terminal NGAP identity (AMF UE NGAP ID);

tracking identification (Trace ID);

tracking a reference (Tracing reference).

Referring to table 1, table 1 is an illustration of the above-mentioned user id types.

Table 1 user identification types

In the embodiment of the present invention, optionally, the user identifier obtaining message is:

In some embodiments of the invention, optionally, the network device may be provided with a target user identification by a request response service. The embodiment is a single user identifier acquisition scheme, and is suitable for acquiring user permanent identifiers such as SUPI, PEI and the like or only one acquisition requirement on target user identifiers. Referring to fig. 2, an embodiment of providing a target user identification to the network device by a request response service optionally includes:

step 21: receiving a user identification request message sent by network equipment, wherein the user identification request message at least comprises a first user identification and a type of a target user identification, and the target user identification is a user identification which is associated with the first user identification and has different types;

Step 22: inquiring the target user identifier associated with the first user identifier according to the types of the first user identifier and the target user identifier;

step 23: and sending a user identification response message to the network equipment, wherein the response message comprises the target user identification associated with the first user identification.

Based on the above flow, a specific reference case is: under the scenario of importing service side user level information into a wireless intelligent controller (RIC), when a Trusted AF/Local NEF/network manager associates a user external identifier (such as an external IP address UE External IP Address) that can be acquired by a service side with a user internal identifier (such as an access and mobility management function terminal NGAP identifier AMF UE NGAP ID) that can be acquired by a wireless network, the Trusted AF/Local NEF/network manager needs to request a persistent identifier SUPI to the AMF once according to the user identifier AMF UE NGAP ID reported by the RIC, so that the Trusted AF/Local NEF/network manager requests a user external IP address to the SMF by using the SUPI (UE External IP Address), thereby completing association of the AMF UE NGAP ID with UE External IP Address, and importing service side user level information into the wireless network, and the flow is illustrated in fig. 3, and includes the following steps:

Step 31: the RIC sends a request for subscribing service side user level information to the Trusted AF/Local NEF/network manager, wherein the request carries an AMF UE NGAP ID which is available in the RIC;

step 32: after the Trusted AF/Local NEF/webmaster receives the RIC request, a user identification request message is sent to the AMF, wherein the user identification request message at least carries an AMF UE NGAP ID (namely a first user identification) and a type of a target user identification (the type of the target user identification is SUPI);

step 33: the AMF queries SUPI (target user identification) of the corresponding user based on AMF UE NGAP ID, and returns the queried SUPI to the Trusted AF/Local NEF/network manager through response message;

step 34: the Trusted AF/Local NEF/webmaster subscribes the SMF to the external IP address of the user (UE External IP Address) with SUPI obtained from the AMF;

step 35: SMF feeds back successful or failed subscription response, queries UE External IP Address of the corresponding user based on SUPI, and returns UE External IP Address to the Trusted AF/Local NEF/network manager in the form of notification;

step 36: based on the mapping relation from step 32 to step 35, the Trusted AF/Local NEF/webmaster associates UE External IP Address with AMF UE NGAP ID to generate and maintain a user identification association relation table;

Step 37: the Trusted AF/Local NEF/webmaster queries UE External IP Address corresponding to the AMF UE NGAP ID reported by the RIC in the step 31 based on the user identification association table, and carries UE External IP Address user-level information of subscribing business side to the application service;

step 38: the application service notifies the service side user level information to the Trusted AF/Local NEF/network manager, and UE External IP Address is carried in the notification;

step 39: the Trusted AF/Local NEF/webmaster informs the RIC of the user-level information of the service side based on the user identification association relation table, the notification carries AMF UE NGAP ID, and the RIC can update the network configuration of the corresponding user based on the related information of the service side to complete customized guarantee for the service of the specific user.

Step 32 and step 33 are specific implementation manners of the embodiment of the present invention for importing service side user level information into a reference case, that is, the Trusted AF/Local NEF/network manager is used as a network device to perform a single user identification request for a SUPI permanent user identification, and the AMF queries the SUPI of the corresponding user once according to the AMF UE NGAP ID carried by the Trusted AF/Local NEF/network manager, and returns the SUPI to the Trusted AF/Local NEF/network manager.

In some embodiments of the present invention, optionally, the network device may also be provided with a target user identification by subscribing to a notification service. The embodiment is suitable for obtaining temporary identifications such as 5G-GUTI, UE NGAP ID, user IP address and the like, monitoring the change condition of the temporary identifications, and obtaining updated scenes of the temporary identifications.

Optionally, referring to fig. 4, an embodiment of providing the target user identifier to the network device through subscribing to a notification service includes:

step 41: receiving a user identification subscription message sent by network equipment, wherein the user identification subscription message at least comprises a first user identification and a type of a target user identification, and the target user identification is a user identification which is associated with the first user identification and has different types;

step 42: transmitting the user identification response message to the network equipment; the response message may be a success or failure response.

Step 43: inquiring the target user identifier associated with the first user identifier according to the types of the first user identifier and the target user identifier;

step 44: and sending a notification message to the network equipment, wherein the notification message always comprises the target user identification associated with the first user identification.

Optionally, sending a user identifier notification message to the network device, where the notification message includes the target user identifier associated with the first user identifier, and further includes:

step 45: and when the target user identifier is updated, sending a notification message to the network equipment, wherein the notification message contains the updated target user identifier.

Based on the above flow, a specific reference case is: in the scenario that wireless information is opened to external application service, when the Trusted AF/Local NEF/network manager associates the external user identifier with the internal user identifier (such as association External UE IP Address and AMF UE NGAP ID) that can be obtained by the wireless network, the Trusted AF/Local NEF/network manager needs to subscribe to the AMF with the AMF UE NGAP ID by using the subscription permanent identifier SUPI obtained from the SMF, so as to complete association between the AMF UE NGAP ID and UE External IP Address, and opens the wireless side user-level information to the application service, as shown in fig. 5, the flow description includes the following steps:

step 51: the application service sends a subscription request to the Trusted AF/Local NEF/network manager, carrying UE External IP Address subscription wireless side user level information.

Step 52: the Trusted AF/Local NEF/webmaster carries UE External IP Address obtained from the application service to request SUPI from SMF;

step 53: the SMF inquires SUPI of the corresponding user based on the received UE External IP Address, and returns the inquired SUPI to the Trusted AF/Local NEF/network manager;

step 54: the Trusted AF/Local NEF/network manager sends a user identification subscription request to the AMF, and the type of the target user identification (the target user identification is AMF UE NGAP ID) and SUPI (i.e. first user identification) and/or the network equipment address (i.e. Trusted AF/Local NEF/network manager address) are carried;

Step 55: after the AMF receives the subscription request, the AMF sends a successful or failed response of the subscription request to the Trusted AF/Local NEF/network manager.

After receiving the subscription request, the AMF can query the authentication information of the Trusted AF/Local NEF/network manager to the core network function, if the authentication is passed, the AMF can send a response of successful subscription request to the Trusted AF/network manager, and if the authentication is not passed or the authentication is not passed, the AMF can send a response of failed subscription request to the Trusted AF/network manager.

Step 56: the AMF queries AMF UE NGAP ID (target user identification) of the corresponding user based on SUPI, and informs the AMF UE NGAP ID to the Trusted AF/Local NEF/network manager;

step 57: if the AMF UE NGAP ID value subscribed by the Trusted AF/Local NEF/network manager in the AMF is updated, executing step 58;

step 58: after the AMF UE NGAP ID value subscribed by the Trusted AF/Local NEF/network manager in the AMF is updated, notifying the updated AMF UE NGAP ID value to the Trusted AF/Local NEF/network manager based on the stored network equipment address;

step 59: based on the mapping relation of user identification in steps 52-58, the Trusted AF/Local NEF/webmaster associates UE External IP Address with AMF UE NGAP ID to generate and maintain a user identification association relation table, and updates the user identification association relation table according to the change condition of user identification in the table;

Step 510: the Trusted AF/Local NEF/webmaster queries an AMF UE NGAP ID corresponding to the application service report UE External IP Address in the step 51 based on a user identification association table, and subscribes wireless side user-level information of the corresponding user to the RIC with the AMF UE NGAP ID;

step 511: the RIC carries AMF UE NGAP ID to inform the wireless side user level information to the Trusted AF/Local NEF/network manager;

step 512: the Trusted AF/Local NEF/webmaster sends the notification to the application service by carrying UE External IP Address based on the user identification association relation table, and the application service can update the service configuration based on the related information of the wireless side, so that the user experience is ensured at the service level.

Step 54 to step 58 are specific implementation manners of the embodiment for the wireless side user level information open reference case, that is, the Trusted AF/Local NEF/network manager is used as a network device to subscribe AMF to the user ID of the AMF UE NGAP ID, the AMF is used as the SUPI carried by the Trusted AF/Local NEF/network manager in the Trusted domain of the core network to inquire the corresponding user AMF UE NGAP ID, and the target user ID AMF UE NGAP ID is notified to the Trusted AF/Local NEF/network manager. In addition, when the temporary user identification AMF UE NGAP ID is updated, the AMF notifies the updated AMF UE NGAP ID to the Trusted AF/Local NEF/network manager.

In addition, steps 51 and 52 relate to another method of obtaining a user identifier according to the present invention, that is, the SMF provides the target user identifier SUPI to the network device Trusted AF/Local NEF/network manager by using the external IP address of the user through the request response service (see the embodiment shown in fig. 2).

In the embodiment of the invention, according to two specific implementation mechanisms of the request/response-based user identifier acquisition scheme or the subscription/notification-based user identifier acquisition scheme, a specific type of target user identifier can be acquired from the AMF based on the user identifier carried by the network device according to the acquisition type and the requirement of the network device in the trusted domain of the core network for the user identifier. Particularly, aiming at the AMF, the method fills the blank that the prior AMF does not have the service for acquiring the user identification, and solves the problems that the user identification can not be acquired and the internal and external user identifications can not be associated in the user-level information opening, particularly in the user-level wireless information opening scene with higher real-time performance. The network equipment is convenient to acquire the corresponding user identification through the AMF and complete the association of the network side and the service side user identification, so that the user-level information of the network side is subscribed or imported into the network by utilizing the associated target user identification.

Referring to fig. 6, an embodiment of the present invention further provides a method for obtaining a user identifier, which is applied to a network device, where the method includes:

step 61: sending a user identification acquisition message to the AMF;

step 62: and receiving the target user identification provided by the AMF.

In the embodiment of the invention, the network equipment belongs to a core network trusted domain.

Optionally, the network device includes at least one of:

the core network receives the AF;

SMF；

PCF；

UDM；

NSSF；

NWDAF；

LMF；

GLMC；

network management functions/systems;

RIC, including non-real-time RIC and/or near real-time RIC.

SUPI；

SUCI；

GUTI；

GPSI；

PEI；

a wireless access network terminal NGAP identification;

an access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

In some embodiments of the present invention, optionally, the user identifier obtaining message is a user identifier request message;

In other embodiments of the present invention, optionally, the user identifier acquisition message is a user identifier subscription message;

receiving a user identification response message sent by the AMF;

and when the target user identifier is updated, receiving a notification message sent by the AMF, wherein the notification message comprises the updated target user identifier. Referring to fig. 7, an embodiment of the present invention further provides an AMF70, including:

a first receiving module 71, configured to receive a user identifier acquisition message sent by a network device;

A first sending module 72, configured to provide the target user identifier to the network device according to the user identifier acquisition message.

Optionally, the network device belongs to a network trusted domain.

Optionally, the network device includes at least one of:

the core network receives the AF;

SMF；

PCF；

UDM；

NSSF；

NWDAF；

LMF；

GLMC；

network management functions/systems;

RIC, including non-real-time RIC and/or near real-time RIC.

SUPI；

SUCI；

GUTI；

GPSI；

PEI；

an access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

Optionally, the user identifier obtaining message is:

the first sending module 72 is configured to query the target user identifier associated with the first user identifier according to the types of the first user identifier and the target user identifier; and sending a user identification response message to the network equipment, wherein the response message comprises the target user identification associated with the first user identification.

the first sending module 72 is configured to send a user identifier response message to the network device; inquiring the target user identifier associated with the first user identifier according to the types of the first user identifier and the target user identifier; and sending a notification message to the network equipment, wherein the notification message comprises the target user identification associated with the first user identification.

Optionally, the method further comprises:

and the second sending module is used for sending a notification message to the network equipment when the target user identifier is updated, wherein the notification message contains the updated target user identifier.

Referring to fig. 8, an embodiment of the present invention further provides an AMF80, including: a transceiver 81 and a processor 82;

the transceiver 81 is configured to receive a user identifier acquisition message sent by a network device; and providing the target user identification for the network equipment according to the user identification acquisition message.

Optionally, the network device belongs to a network trusted domain.

Optionally, the network device includes at least one of:

the core network receives the AF;

SMF；

PCF；

UDM；

NSSF；

NWDAF；

LMF；

GLMC；

Network management functions/systems;

RIC, including non-real-time RIC and/or near real-time RIC.

SUPI；

SUCI；

GUTI；

GPSI；

PEI；

an access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

Optionally, the user identifier obtaining message is:

the processor 82 is configured to query the target user identifier associated with the first user identifier according to the types of the first user identifier and the target user identifier;

the transceiver 81 is configured to send a user identifier response message to the network device, where the response message includes the target user identifier associated with the first user identifier.

the transceiver 81 is configured to send a user identification response message to the network device;

the transceiver 81 is configured to send a notification message to the network device, where the notification message includes the target user identifier associated with the first user identifier.

Optionally, the method further comprises:

the transceiver 81 is configured to send a notification message to the network device when the target user identifier is updated, where the notification message includes the updated target user identifier.

Referring to fig. 9, an embodiment of the present invention further provides a network device 90, including:

a first sending module 91, configured to send a user identifier obtaining message to the AMF;

a first receiving module 92, configured to receive the target user identifier provided by the AMF.

Optionally, the network device belongs to a network trusted domain.

Optionally, the network device includes at least one of:

the core network receives the AF;

SMF；

PCF；

UDM；

NSSF；

NWDAF；

LMF；

GLMC；

Network management functions/systems;

RIC, including non-real-time RIC and/or near real-time RIC.

SUPI；

SUCI；

GUTI；

GPSI；

PEI；

a wireless access network terminal NGAP identification;

an access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

Optionally, the user identifier obtaining message is:

the first receiving module 92 is configured to receive a user identifier response message sent by the AMF, where the response message includes the target user identifier associated with the first user identifier.

the first receiving module 92 is configured to receive a user identifier response message sent by the AMF; and receiving a notification message sent by the AMF, wherein the notification message comprises the target user identification associated with the first user identification.

Optionally, the method further comprises:

and the second receiving module is used for receiving a notification message sent by the AMF when the target user identifier is updated, wherein the notification message contains the updated target user identifier.

Referring to fig. 10, an embodiment of the present invention further provides a network device 100, including: a transceiver 101 and a processor 102;

the transceiver 101 is configured to send a subscriber identity acquisition message to the AMF; and receiving the target user identification provided by the AMF.

Optionally, the network device belongs to a network trusted domain.

Optionally, the network device includes at least one of:

the core network receives the AF;

SMF；

PCF；

UDM；

NSSF；

NWDAF；

LMF；

GLMC；

network management functions/systems;

RIC, including non-real-time RIC and/or near real-time RIC.

SUPI；

SUCI；

GUTI；

GPSI；

PEI；

a wireless access network terminal NGAP identification;

An access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

Optionally, the user identifier obtaining message is:

the transceiver 101 is configured to receive a subscriber identity response message sent by the AMF, where the response message includes the target subscriber identity associated with the first subscriber identity.

the transceiver 101 is configured to receive a subscriber identity response message sent by the AMF; and receiving a notification message sent by the AMF, wherein the notification message comprises the target user identification associated with the first user identification.

Optionally, the transceiver 101 is further configured to receive a notification message sent by the AMF when the target user identifier is updated, where the notification message includes the updated target user identifier.

Referring to fig. 11, an embodiment of the present invention further provides an AMF110, which includes a processor 111, a memory 112, and a computer program stored in the memory 112 and capable of running on the processor 111, where the computer program when executed by the processor 111 implements each process of the embodiment of the user identifier obtaining method executed by the AMF, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

Referring to fig. 12, the embodiment of the present invention further provides a network device 120, including a processor 121, a memory 122, and a computer program stored in the memory 122 and capable of running on the processor 121, where the computer program when executed by the processor 121 implements the processes of the above embodiment of the method for obtaining a user identifier executed by the network device, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the processes of the above-mentioned user identifier obtaining method embodiment, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. A method for obtaining a user identifier, which is applied to an access and mobility management function AMF, the method comprising:

receiving a user identifier acquisition message sent by network equipment;

2. The method of claim 1, wherein the network device belongs to a network trusted domain.

3. The method of claim 1, wherein the network device comprises at least one of:

a core network trusted application function AF;

session management function SMF;

policy control function PCF;

a unified data management function UDM;

a network slice selection function NSSF;

a network data analysis function NWDAF;

a local management function LMF;

a mobile positioning center gateway GLMC;

network management functions/systems;

4. The method of claim 1, wherein the subscriber identity acquisition message includes at least a first subscriber identity and a type of target subscriber identity, the target subscriber identity being a subscriber identity of a different type that is associated with the first subscriber identity.

5. The method according to claim 4, wherein the type of the first user identification and/or the target user identification comprises at least one of:

subscribing to a permanent identity SUPI;

the user conceals the identification SUCI;

globally unique temporary user identification GUTI;

a general public user identity GPSI;

permanent device identification PEI;

an access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

6. The method of claim 4, wherein the subscriber identity acquisition message is:

7. The method of claim 6, wherein the subscriber identity acquisition message is a subscriber identity request message; providing the target user identification to the network equipment according to the user identification acquisition message comprises the following steps:

8. The method of claim 6, wherein the subscriber identity acquisition message is a subscriber identity subscription message; providing the target user identification to the network equipment according to the user identification acquisition message comprises the following steps:

transmitting a user identification response message to the network equipment;

9. The method of claim 8, further comprising, after sending a notification message to the network device:

10. A method for obtaining a user identifier, which is applied to a network device, the method comprising:

sending a user identification acquisition message to the AMF;

and receiving the target user identification provided by the AMF.

11. The method of claim 10, wherein the network device belongs to a network trusted domain.

12. The method of claim 10, wherein the network device comprises at least one of:

the core network receives the AF;

SMF；

PCF；

UDM；

NSSF；

NWDAF；

LMF；

GLMC；

network management functions/systems;

RIC, including non-real-time RIC and/or near real-time RIC.

13. The method of claim 10, wherein the subscriber identity acquisition message includes at least a first subscriber identity and a type of target subscriber identity, the target subscriber identity being a subscriber identity of a different type that is associated with the first subscriber identity.

14. The method according to claim 13, wherein the type of the first user identification and/or the target user identification comprises at least one of:

SUPI；

SUCI；

GUTI；

GPSI；

PEI；

a wireless access network terminal NGAP identification;

an access and mobility management function terminal NGAP identifier;

tracking the identification;

tracking the reference.

15. The method of claim 13, wherein the subscriber identity acquisition message is: a user identification request message; alternatively, the user identifies a subscription message.

16. The method of claim 15, wherein the subscriber identity acquisition message is a subscriber identity request message; the receiving the target user identification provided by the AMF comprises the following steps:

17. The method of claim 15, wherein the subscriber identity acquisition message is a subscriber identity subscription message; the receiving the target user identification provided by the AMF comprises the following steps:

receiving a user identification response message sent by the AMF;

18. The method of claim 17, further comprising, after receiving the notification message sent by the AMF:

19. An AMF, comprising:

20. An AMF, comprising: a transceiver and a processor;

21. A network device, comprising:

22. A network device, comprising: a transceiver and a processor;

23. An AMF, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the user identification acquisition method as claimed in any one of claims 1 to 9.

24. A network device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the user identification acquisition method as claimed in any one of claims 10 to 18.

25. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the user identification acquisition method according to any one of claims 1 to 9; alternatively, the computer program when executed by a processor implements the steps of a user identification acquisition method as claimed in any one of claims 10 to 18.