CN117715177A

CN117715177A - Positioning method and device

Info

Publication number: CN117715177A
Application number: CN202211105113.9A
Authority: CN
Inventors: 王佰晓; 侯云静; 艾明
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2024-03-15

Abstract

The invention provides a positioning method and a positioning device. The method comprises the following steps: in the process of terminal positioning through a first 3GPP access, if the first core network node determines that the terminal supports double 3GPP access capability, acquiring second access information corresponding to a second 3GPP access from a UDM to which the terminal belongs; and the first core network node sends a positioning request message to the core network node corresponding to the second 3GPP access according to the second access information. When the first core network node executes the terminal positioning process based on the first 3GPP access, if the terminal is determined to support the double 3GPP access, after second access information corresponding to the second 3GPP access is acquired, a positioning request is sent to the core network node corresponding to the second 3GPP access, and the core network node corresponding to the second 3GPP access is instructed to execute the terminal positioning, so that the terminal positioning process when the terminal is registered to the network through two 3GPP access types is realized.

Description

Positioning method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a positioning method and apparatus.

Background

A User Equipment (UE) supporting Dual Radio may use only one universal integrated circuit card (Universal Integrated Circuit Card, UICC) and register into the network through two third generation partnership project (3rd Generation Partnership Project,3GPP) Access types simultaneously with only one subscription in the unified data management function (Unified Data Management, UDM). The existing technical solution cannot realize positioning of the terminal when the terminal registers in the network through two 3GPP access types.

Disclosure of Invention

The invention aims to provide a positioning method and a positioning device, which solve the problem that the prior technical scheme can not realize positioning of a terminal when the terminal is registered in a network through two 3GPP access types.

The embodiment of the invention provides a positioning method, which comprises the following steps:

in the process of terminal positioning through a first 3GPP access, if the first core network node determines that the terminal supports double 3GPP access capability, acquiring second access information corresponding to a second 3GPP access from a unified data management function (Unified Data Management, UDM) to which the terminal belongs;

and the first core network node sends a positioning request message to the core network node corresponding to the second 3GPP access according to the second access information.

Optionally, the obtaining, from the UDM to which the terminal belongs, second access information corresponding to the second 3GPP access includes:

and sending a first subscription request message to the UDM, wherein the first subscription request message is used for subscribing to registration information change in the UDM, and the registration information change comprises the second access information.

Optionally, the determining that the terminal supports the dual 3GPP access capability includes:

and if the first core network node acquires a target capacity identifier, and the target capacity identifier indicates that the terminal supports the double 3GPP access capacity, determining that the terminal supports the double 3GPP access capacity.

Optionally, the acquiring manner of the target capability identifier includes one of the following:

-if the first core network node is a home gateway mobile location centre (Home Gateway Mobile Location Centre, H-GMLC), the target capability identity is provided by the UDM;

if the first core network node is a first access and mobility management function (Access and Mobility Management Function, AMF) corresponding to a first 3GPP access, the target capability identification is provided by an H-GMLC or a first Visited gateway mobile location center (V-GMLC) corresponding to the first 3GPP access;

if the first core network node is a first location management function (Location Management Function, LMF) corresponding to the first 3GPP access, the target capability identification is provided by a first AMF corresponding to the first 3GPP access.

Optionally, the sending, according to the second access information, a positioning request message to a core network node corresponding to the second 3GPP access includes:

and sending a positioning request message to a core network node corresponding to the second 3GPP access according to the second access information under the condition that the terminal positioning is determined to be performed through the second 3GPP access according to the first access information and the second access information corresponding to the first 3GPP access.

Optionally, the determining, according to the first access information and the second access information corresponding to the first 3GPP access, to perform terminal positioning through the second 3GPP access includes one of:

determining a network difference between the first 3GPP access and the second 3GPP access according to the first access information and the second access information, and determining to perform terminal positioning through the second 3GPP access according to the network difference;

determining to locate a terminal through the second 3GPP access according to an analysis result of analyzing the first access information and the second access information by a network data analysis function;

and sending the second access information to a second core network node corresponding to the first 3GPP access, and determining to perform terminal positioning through the second 3GPP access according to a response message sent by the second core network node, wherein the response message is determined by the second core network node according to the first access information and the second access information.

Optionally, the determining, according to the response message sent by the second core network node, terminal positioning through the second 3GPP access includes:

and if the response message sent by the second core network node comprises the relocation indication information, determining to locate the terminal through the second 3GPP access.

Optionally, the sending the second access information to the second core network node corresponding to the first 3GPP access includes:

and if the first core network node is a first AMF, sending the second access information to a first LMF, wherein the first LMF is used for determining whether to perform terminal positioning through the second 3GPP access according to the first access information and the second access information and generating the response message.

Optionally, the method further comprises:

and if the first core network node is an H-GMLC, after receiving a positioning request message aiming at the first 3GPP access, acquiring first access information corresponding to the 3GPP access from the UDM.

Optionally, the first access information includes at least one of:

the first 3GPP accesses a corresponding first AMF;

the first 3GPP accesses corresponding wireless type information;

the first 3GPP accesses a corresponding first V-GMLC.

Optionally, the second access information includes at least one of:

accessing a corresponding second AMF by a second 3 GPP;

the second 3GPP accesses corresponding wireless type information;

the second 3GPP accesses a corresponding second V-GMLC.

Optionally, the sending a positioning request message to the core network node corresponding to the second 3GPP access includes one of:

If the first core network node is an H-GMLC, sending a positioning request message to a second V-GMLC corresponding to the second 3GPP access;

if the first core network node is a first AMF, sending a positioning request message to a second AMF corresponding to the second 3GPP access;

and if the first core network node is a first LMF, indicating the first AMF to send a positioning request message to a second AMF corresponding to the second 3GPP access.

Optionally, the indicating the first AMF to send the positioning request message to the second AMF corresponding to the second 3GPP access includes:

and sending repositioning indication information to the first AMF, wherein the indication information is used for indicating the first AMF to send a positioning request message to the second AMF.

Optionally, the method further comprises:

and sending a first unsubscribe request message to the UDM under the condition that a positioning result of terminal positioning through the second 3GPP access is received.

Optionally, if the first core network node is a first AMF, after sending the first subscription request message to the UDM, the method further comprises:

receiving a second subscription request message sent by the first LMF;

wherein the second subscription request message is sent if the first LMF determines that the terminal supports dual 3GPP access capability; the second subscription request message is configured to subscribe to a registration information change with the first AMF, where the registration information change includes the second access information.

Optionally, the method further comprises:

and under the condition that a positioning result of terminal positioning through the second 3GPP access is received, the first AMF receives a second unsubscribe request message sent by the first LMF.

An embodiment of the present invention provides a positioning device including: memory, transceiver, processor:

a memory for storing a computer program; a transceiver for receiving and transmitting data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

in the process of positioning a terminal through a first 3GPP access, if the terminal is determined to support double 3GPP access capability, acquiring second access information corresponding to a second 3GPP access from a UDM to which the terminal belongs;

the transceiver is used for: and sending a positioning request message to a core network node corresponding to the second 3GPP access according to the second access information.

Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

and if the first core network node acquires the target capacity identifier and the target capacity identifier indicates that the terminal supports the double 3GPP access capacity, determining that the terminal supports the double 3GPP access capacity.

if the first core network node is an H-GMLC, the target capability identification is provided by the UDM;

if the first core network node is a first AMF corresponding to a first 3GPP access, the target capability identification is provided by an H-GMLC or a first V-GMLC corresponding to the first 3GPP access;

and if the first core network node is a first LMF corresponding to the first 3GPP access, the target capability identification is provided by a first AMF corresponding to the first 3GPP access.

Optionally, the transceiver is configured to:

Optionally, the processor is configured to read the computer program in the memory and perform one of the following operations:

Optionally, the transceiver is configured to:

Optionally, the first access information includes at least one of:

the first 3GPP accesses a corresponding first AMF;

the first 3GPP accesses corresponding wireless type information;

the first 3GPP accesses a corresponding first V-GMLC.

Optionally, the second access information includes at least one of:

accessing a corresponding second AMF by a second 3 GPP;

the second 3GPP accesses corresponding wireless type information;

the second 3GPP accesses a corresponding second V-GMLC.

Optionally, the transceiver is configured to perform one of:

Optionally, the transceiver is further configured to:

Optionally, if the first core network node is a first AMF, after sending the first subscription request message to the UDM, the transceiver is further configured to:

receiving a second subscription request message sent by the first LMF;

Optionally, the transceiver is further configured to:

An embodiment of the present invention provides a positioning device including:

the first processing unit is used for acquiring second access information corresponding to second 3GPP access from a unified data management function (UDM) to which the terminal belongs if the terminal is determined to support double 3GPP access capability in the process of positioning the terminal through the first 3GPP access;

and the first sending unit is used for sending a positioning request message to the core network node corresponding to the second 3GPP access according to the second access information.

An embodiment of the present invention provides a processor-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the positioning method described above.

The technical scheme of the invention has the beneficial effects that:

in the embodiment of the application, when the first core network node executes the terminal positioning process based on the first 3GPP access, if the terminal is determined to support the double 3GPP access, second access information corresponding to the second 3GPP access is acquired from the UDM, and a positioning request is sent to the core network node corresponding to the second 3GPP access according to the second access information, so that the core network node corresponding to the second 3GPP access is instructed to execute the terminal positioning, and the terminal positioning process when the terminal is registered to the network through two 3GPP access types at the same time is realized.

Drawings

FIG. 1 is a flow chart of a positioning method according to an embodiment of the invention;

FIG. 2 is a second flow chart of a positioning method according to an embodiment of the invention;

FIG. 3 is a third flow chart of a positioning method according to an embodiment of the invention;

FIG. 4 is a flow chart of a positioning method according to an embodiment of the invention;

FIG. 5 is a flow chart of a positioning method according to an embodiment of the invention;

FIG. 6 is a schematic diagram of a positioning device according to an embodiment of the present invention;

FIG. 7 is a second schematic diagram of a positioning device according to an embodiment of the invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the invention. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

In the embodiment of the application, the term "and/or" describes the association relationship of the association objects, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The embodiment of the application provides a positioning method and a positioning device, which are used for solving the problem that the prior technical scheme can not realize positioning of a terminal when the terminal is registered in a network through two 3GPP access types.

The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

As shown in fig. 1, an embodiment of the present application provides a positioning method applied to a first core network node, which specifically includes the following steps:

step 101, in the process of positioning a terminal through a first 3GPP access, if a first core network node determines that the terminal supports double 3GPP access capability, acquiring second access information corresponding to a second 3GPP access from a unified data management function UDM to which the terminal belongs;

In this embodiment, the first core network node may be any one of AMF1, LMF1, H-GMLC. The terminal supporting the dual 3GPP access capability means that the terminal supports registration to the network through two 3GPP access types. And when the first core network node executes a terminal positioning process based on the first 3GPP access, if the terminal is determined to support the double 3GPP access capability, acquiring second access information aiming at a second 3GPP access from the UDM. The second access information is used for indicating a network node, an access type and the like corresponding to the second 3GPP access.

The first 3GPP access and the second 3GPP access are two different 3GPP access types, which respectively correspond to one RAN node, the RAN nodes corresponding to the two access types may be the same or different, and the two RAN nodes may be network nodes of different operators.

The two types of 3GPP access can be a Non-terrestrial network (Non-Terrestrial Networks, NTN) and a Terrestrial Network (TN), or two Non-terrestrial networks, or a terrestrial network and a Non-public network (NPN), etc. The two 3GPP access modes may belong to the same public land mobile network (Public Land Mobile Network, PLMN) or to different PLMNs, respectively. Wherein the NTN is, for example, satellite access and the TN is, for example, a terrestrial 5G base station. The specific form of the first 3GPP access type and the second 3GPP access type is not limited herein.

Optionally, the first core network node obtains second access information corresponding to a second 3GPP access from a UDM to which the terminal belongs, which may include: the first core network node requests the second access information from the UDM; alternatively, the UDM actively sends second access information to the first core network node, for example: the UDM transmits second access information to the first core network node after receiving the related information of the second 3GPP access, or transmits the second access information to the first core network node when a preset condition is met.

Step 102, the first core network node sends a positioning request message to the core network node corresponding to the second 3GPP access according to the second access information.

And if the second access information indicates the network node corresponding to the second 3GPP access, the first core network node can send a positioning request message to the network node corresponding to the second 3GPP access according to the second access information, and instruct the network node corresponding to the second 3GPP access to execute a terminal positioning process.

As an optional embodiment, the obtaining, from the UDM to which the terminal belongs, second access information corresponding to a second 3GPP access includes:

In this embodiment, the first core network node implements subscription terminal access state change (i.e. registration information change) by sending a first subscription request message to the UDM to which the terminal belongs, where the first subscription request message may be used to subscribe to registration information change in the UDM, i.e. when the registration information of the terminal is changed, the UDM sends access information of a new access type to the first core network node. In this embodiment, when the first core network node performs terminal positioning through the first 3GPP access, if the UE registers in the network from another 3GPP access, the UDM receives and stores a registration from a core network node corresponding to the second 3GPP access, and sends second access information corresponding to the second 3GPP access to the first core network node according to the first subscription request message.

As an alternative embodiment, the determining that the terminal supports dual 3GPP access capability includes:

In this embodiment, the target capability identity may be an identity for indicating whether the terminal supports dual 3GPP access capability. And if the first core network node receives the target capacity identifier and determines that the terminal supports the double 3GPP access capacity according to the target capacity identifier, determining that the terminal supports the double 3GPP access capacity.

(1) If the first core network node is an H-GMLC, the target capability identification is provided by the UDM.

In this embodiment, when the first core network node is a different node, the target capability identifier may be obtained in a different manner. And if the first core network node is the H-GMLC, the H-GMLC acquires the second access information from the UDM to which the terminal belongs.

When the terminal locates through the first 3GPP access, after the H-GMLC receives the location request message, the H-GMLC obtains the terminal capability (i.e. obtains the target capability identifier) from the UDM to which the terminal belongs, optionally, the H-GMLC can obtain the target capability identifier from the UDM to which the UE belongs through the service Nudm_UECM_get of the UDM, for example: the message returned by the UDM contains an identification of "support dual 3GPP access capability".

(2) And if the first core network node is a first AMF corresponding to the first 3GPP access, the target capability identification is provided by the H-GMLC or a first V-GMLC corresponding to the first 3GPP access.

And if the first core network node is a first AMF corresponding to the first 3GPP access, the first AMF acquires the second access information from the UDM to which the terminal belongs. And if the roaming scene is not the roaming scene, the target capability identification is provided by the H-GMLC.

For example: aiming at a roaming scene, when a terminal locates through a first 3GPP access, H-GMLC acquires terminal capability (namely, acquires a target capability identifier) from UDM to which the terminal belongs after receiving a locating request message, and sends a locating request to a first V-GMLC after receiving the target capability identifier, wherein the locating request carries the target capability identifier; the first V-GMLC sends a positioning request to the first AMF, wherein the positioning request carries the target capability identifier.

For a roaming-free scene, after the H-GMLC receives the positioning request message, acquiring terminal capability (namely acquiring a target capability identifier) from the UDM to which the terminal belongs, and directly sending a positioning request to the first AMF after receiving the target capability identifier, wherein the positioning request carries the target capability identifier.

(3) And if the first core network node is a first LMF corresponding to the first 3GPP access, the target capability identification is provided by a first AMF corresponding to the first 3GPP access.

And if the first core network node is the first LMF, acquiring the second access information from the UDM to which the terminal belongs by the first LMF.

When a terminal locates through a first 3GPP access, after receiving a location request message, an H-GMLC acquires terminal capability (namely, acquires a target capability identifier) from a UDM to which the terminal belongs, and after receiving the target capability identifier, the H-GMLC transmits the target capability identifier to a first AMF or transmits the target capability identifier to the first AMF through the first V-GMLC (aiming at a roaming scene), and the first AMF transmits the target capability identifier to the first LMF (which can be carried by the location request message).

As an optional embodiment, the sending, according to the second access information, a positioning request message to a core network node corresponding to the second 3GPP access includes:

In this embodiment, when the first core network node determines that terminal positioning needs to be performed through the second 3GPP access, a positioning request message is sent to a core network node corresponding to the second 3GPP access, and the core network node corresponding to the second 3GPP access is instructed to perform terminal positioning. Specifically, the first core network node determines whether to perform terminal positioning through the second 3GPP access according to first access information and the second access information corresponding to the first 3GPP access.

(1) And determining the network difference between the first 3GPP access and the second 3GPP access according to the first access information and the second access information, and determining to position the terminal through the second 3GPP access according to the network difference.

In this embodiment, the first core network node determines that the terminal location is performed through the second 3GPP access, that is, the first core network node obtains the second access information from the UDM to which the terminal belongs, and the first core network node may obtain the first access information from the UDM (for example, the first core network node is an H-GMLC), or may determine the first access information according to the service executed by itself (for example, the first core network node is a first AMF or a first LMF).

Specifically, the first core network node determines a network difference between a first 3GPP access and a second 3GPP access according to the first access information and the second access information, and determines whether to perform terminal positioning through the second 3GPP access according to the network difference. For example: if the first 3GPP access is of an NTN access type and the second 3GPP access is of a TN access type, a positioning flow is initiated to a TN network of the second 3GPP access in consideration of accuracy and instantaneity of the TN network.

(2) And determining to locate the terminal through the second 3GPP access according to an analysis result of the first access information and the second access information analyzed by a network data analysis function.

In this embodiment, the first core network node determines whether to perform terminal positioning through the second 3GPP access, that is, the first core network node obtains the second access information from the UDM to which the terminal belongs, and the first core network node may obtain the first access information from the UDM, or may determine the first access information according to the service executed by itself.

Specifically, the first core network node analyzes the two registration information through a network data analysis function (NWDAF), and determines whether to perform terminal positioning through the second 3GPP access according to the analysis result. For example: the first core network node judges through NWDAF analysis: and the second 3GPP access can acquire a positioning result with higher precision or faster speed, and then a positioning flow is initiated to a network of the second 3GPP access. If the NWDAF analysis determines that the first 3GPP access can obtain a positioning result with higher accuracy or faster, the terminal positioning is not required to be performed through the second 3GPP access.

(3) And sending the second access information to a second core network node corresponding to the first 3GPP access, and determining to perform terminal positioning through the second 3GPP access according to a response message sent by the second core network node, wherein the response message is determined by the second core network node according to the first access information and the second access information.

The second core network node is another core network node than the first core network node when performing the first 3GPP access. And determining whether to perform terminal positioning through a second 3GPP access by the second core network node, namely, the first core network node acquires second 3GPP access registration information from a UDM to which the terminal belongs, and sending the second access information to the second core network node, wherein the second core network node determines whether to perform terminal positioning through the second 3GPP access.

For example: the first core network node is a first AMF, the second core network node is a first LMF, when a terminal locates through a first 3GPP access, H-GMLC acquires terminal capability from UDM to which the terminal belongs after receiving a locating request message, and after receiving a target capability identifier, sends a locating request (aiming at a roaming scene) to the first V-GMLC, wherein the locating request carries the target capability identifier; the first V-GMLC sends a positioning request to the first AMF, wherein the positioning request carries the target capability identifier. And the first AMF sends a position determining request to the first LMF, and when the first LMF determines that the terminal supports the double 3GPP access capability, the first AMF sends a subscription request message for subscribing the access state change of the terminal.

In the positioning process, if the UE registers to the network through the second 3GPP access, the UDM sends second access information to the first AMF according to sending the second access information to the first LMF by the first AMF, and the first LMF may determine, according to the first access information and the second access information, whether to perform terminal positioning through the second 3GPP access, and send a result of determining whether to perform terminal positioning through the second 3GPP access to the first AMF through a response message, for example: and if the first LMF determines that the terminal is positioned through the second 3GPP access, the response message sent to the first AMF comprises relocation indication information.

The method for determining whether to perform terminal positioning through the second 3GPP access by the second core network node is the same as the method for determining whether to perform terminal positioning through the second 3GPP access by the first core network node itself, and will not be described herein.

In this embodiment, after determining that the terminal is located through the second 3GPP access, the second core network node sends a response message to the first core network node, and indicates relocation in the response message, and then the first core network node determines that the terminal is located through the second 3GPP access.

In this embodiment, if the first core network node is a first AMF corresponding to a first 3GPP access, the second core network node may be a first LMF corresponding to a first 3GPP access. And after receiving the second access information sent by the UDM, the first AMF sends the second access information to the first LMF. And the first LMF determines whether to locate the terminal through the second 3GPP access according to the first access information and the second access information corresponding to the first 3GPP access. And if the terminal positioning is determined to be performed through the second 3GPP access, the first LMF sends a response message to the first AMF, wherein the response message carries relocation instruction information.

As an alternative embodiment, the method further comprises: and if the first core network node is an H-GMLC, after receiving a positioning request message aiming at the first 3GPP access, acquiring first access information corresponding to the 3GPP access from the UDM.

In this embodiment, if the first core network node is an H-GMLC, when the H-GMLC determines to perform a terminal positioning procedure of a first 3GPP access according to a positioning request message, a UDM to which a terminal belongs is required to obtain first access information corresponding to the first 3GPP access, so that a terminal positioning procedure based on the first 3GPP access may be performed according to the first access information. And may determine whether to perform a second 3GPP access-based terminal location procedure based on the first access information and the second access information.

If the first core network node is a first AMF or a first LMF, the first AMF or the first LMF may obtain the first access information.

Optionally, the first access information includes at least one of:

(1) The first 3GPP accesses a corresponding first AMF;

(2) The first 3GPP accesses corresponding wireless type information;

(3) The first 3GPP accesses a corresponding first V-GMLC.

In this embodiment, the first access information corresponding to the first 3GPP access may include one or more of a first AMF, a first V-GMLC, and wireless type information. For example, for a roaming-free scenario, the first access information includes a first AMF and radio type information, where the first core network node needs to determine the first AMF and radio type information corresponding to the first 3GPP access, and the radio type information may indicate a radio type corresponding to the first 3GPP access.

For roaming scenarios, the first access information includes: a first AMF, a first V-GMLC, and wireless type information. The first core network node needs to determine a first AMF, a first V-GMLC and radio type information corresponding to a first 3GPP access, where the radio type information may indicate a radio type corresponding to the first 3GPP access.

Optionally, the second access information includes at least one of:

(1) Second AMF corresponding to second 3GPP access

(2) The second 3GPP accesses corresponding wireless type information;

(3) The second 3GPP accesses a corresponding second AMF.

In this embodiment, the second access information corresponding to the second 3GPP access may include one or more of a second AMF, a second V-GMLC, and wireless type information. For example, for a roaming-free scenario, the second access information includes: a second AMF and wireless type information. The first core network node obtains a second AMF and wireless type information corresponding to a second 3GPP access from a UDM to which the terminal belongs, and the wireless type information can indicate a wireless type corresponding to the second 3GPP access.

For roaming scenarios, the second access information includes: a second AMF, a second V-GMLC, and wireless type information. The first core network node obtains a second AMF, a second V-GMLC and wireless type information corresponding to a second 3GPP access from a UDM to which the terminal belongs, wherein the wireless type information can indicate a wireless type corresponding to the second 3GPP access.

As an optional embodiment, the sending a positioning request message to the core network node corresponding to the second 3GPP access includes one of:

(1) And if the first core network node is the H-GMLC, sending a positioning request message to a second V-GMLC corresponding to the second 3GPP access.

In this embodiment, if the first core network node is an H-GMLC, the H-GMLC obtains the second access information from the UDM to which the terminal belongs. After determining that the terminal is positioned through the second 3GPP access, the H-GMLC sends a positioning request message to a second V-GMLC if the terminal is in a roaming scene, and the second V-GMLC sends a positioning request to a second AMF corresponding to the second 3GPP access. If the roaming scenario is not the roaming scenario, the H-GMLC may directly send a location request message to a second AMF corresponding to the second 3GPP access. The second AMF performs a procedure for terminal location through the second 3GPP access.

(2) And if the first core network node is a first AMF, sending a positioning request message to a second AMF corresponding to the second 3GPP access.

And if the first core network node is the first AMF, the first AMF acquires second access information from the UDM to which the terminal belongs. After determining that the terminal is positioned through the second 3GPP access, the first AMF sends a positioning request message to a second AMF corresponding to the second 3GPP access, so that the second AMF executes a process of positioning the terminal through the second 3GPP access.

(3) And if the first core network node is a first LMF, indicating the first AMF to send a positioning request message to a second AMF corresponding to the second 3GPP access.

Optionally, the indicating the first AMF to send the positioning request message to the second AMF corresponding to the second 3GPP access includes: and sending repositioning indication information to the first AMF, wherein the indication information is used for indicating the first AMF to send a positioning request message to the second AMF.

In this embodiment, if the first core network node is the first LMF, the first LMF obtains the second access information from the UDM to which the terminal belongs. After determining that the terminal is positioned through the second 3GPP access, the first LMF firstly sends repositioning indication information to the first AMF, and after receiving the repositioning indication information, the first AMF sends a positioning request message to a second AMF corresponding to the second 3GPP access, so that the second AMF executes a process of positioning the terminal through the second 3GPP access.

As an alternative embodiment, the method further comprises: and canceling the terminal positioning flow for the first 3GPP access.

In this embodiment, after performing the procedure of terminal positioning through the second 3GPP access, the first core network node may cancel the terminal positioning procedure for the first 3GPP access. The terminal positioning procedure for the first 3GPP access refers to a positioning procedure performed by the first core network node before performing terminal positioning through the second 3GPP access.

Optionally, the cancelling the terminal positioning procedure for the first 3GPP access includes:

and under the condition that the positioning result aiming at the second 3GPP access is received, if the positioning result aiming at the first 3GPP access is not received, canceling the terminal positioning flow aiming at the first 3GPP access. For example: the first core network node may send a notification message to cancel positioning to the first AMF or to the first AMF through the first V-GMLC to cancel a terminal positioning procedure for the first 3GPP access.

As an alternative embodiment, the method further comprises:

In this embodiment, if the first core network node receives a terminal positioning result for the second 3GPP access, which indicates that terminal positioning performed by the second 3GPP access is completed, the first core network node may cancel subscribing to the registration information change with the UDM. Unsubscribing from the UDM may use a newly defined service such as nudm_uecm_un ubscribe.

As an optional embodiment, if the first core network node is a first AMF, after sending the first subscription request message to the UDM, the method further comprises:

Receiving a second subscription request message sent by the first LMF;

In this embodiment, if the first core network node is a first AMF, after the first AMF receives the positioning request, if it is determined that the terminal supports dual 3GPP access, the first AMF may acquire second access information from a UDM to which the terminal belongs, for example, send a first subscription request message to the UDM. The first AMF may send a determine location request message to the first LMF, carrying the target capability identification. When the first LMF determines that the terminal supports the dual 3GPP access capability, a second subscription request message is sent to the first AMF, where the second subscription request message is used to Subscribe to the access state change of the terminal, and the subscription may use a new AMF subscription service, such as namf_uecm_subscience.

In the process of terminal positioning through the first 3GPP access, if the first AMF receives second access information fed back by the UDM, the second access information can be sent to the first LMF according to the second subscription request message, so that the second LMF can determine whether to perform terminal positioning through the second 3GPP access according to the first access information and the second access information. The procedure of informing the first AMF of the second access information to the first LMF may use a new AMF Notification service, such as namf_uecm_notification.

Optionally, the method further comprises: and under the condition that a positioning result of terminal positioning through the second 3GPP access is received, the first AMF receives a second unsubscribe request message sent by the first LMF.

In this embodiment, the first core network node is a first AMF, and if the first AMF receives a terminal positioning result for the second 3GPP access, which indicates that terminal positioning performed by the second 3GPP access is completed, the first LMF may cancel subscribing to the registration information change with the first AMF, for example, the first AMF sends a second unsubscribe request message.

The implementation process of the positioning method is described by a specific embodiment for different first core network nodes.

In an alternative embodiment, taking the first core network node as an H-GMLC, and taking the case that the terminal registers in the 5G network as an example, the H-GMLC subscribes to the UDM for registration information change and makes a positioning decision with the H-GMLC, where the H-GMLC makes a positioning decision refers to determining, by the H-GMLC, whether to perform terminal positioning through the second 3GPP access.

In this embodiment, the UE first registers to the 5G network through a first 3GPP Access manner (Access 1), and corresponds to the Access1, a 5G core network node used in the registration process includes: AMF1 (i.e., the first AMF), LMF1 (i.e., the first LMF), H-GMLC. In case of roaming scenario, the 5G core network node comprises a GMLC (V-GMLC 1, i.e. the first V-GMLC) also including a visited place.

In the process of locating the UE, the UE is registered in the 5G network by using a second 3GPP Access mode (Access 2), and the used 5G core network node comprises: AMF2 (i.e. the second AMF), LMF2 (i.e. the second LMF), V-GMLC2 (for roaming scenarios, i.e. the second V-GMLC), H-GMLC. The two access modes of the UE may belong to the same PLMN or to different PLMNs.

Alternatively, access1 and Access2 refer to two 3GPP Access modes, and may correspond to two RAN nodes, where the two RAN nodes may be the same (e.g. are all gnbs, but belong to different operators) or different (e.g. the RAN node corresponding to Access1 is satellite Access, and the node corresponding to Access2 is terrestrial Access), which is not limited herein.

As shown in fig. 2, includes:

step 1: the UE is registered in the 5G network through 3GPP Access 1. In the registration process, the UE reports information of "support dual 3GPP access capability" (indicating that the terminal supports dual 3GPP access), and specifically, the terminal may send the above terminal capability to the UDM through the AMF, where the capability is stored in the UDM.

Step 2: the location service Client (LoCation Services Client, LCS Client) or application function (Application Function, AF) initiates a location request to the UE, which is sent to the H-GMLC, which may be a 5GC-MT-LR procedure or a Deferred 5GC-MT-LR procedure.

Step 3: the H-GMLC obtains related information from the UDM to which the UE belongs, for example, obtains information such as service AMF1, V-GMLC1 (applied in roaming scenario, the V-GMLC1 may not need to be obtained if no roaming scenario exists) and access type of the UE from the UDM through service nudm_uecm_get of the UDM. The message returned by the UDM contains an identification of "support dual 3GPP access capability" (i.e. the target capability identification).

Step 4: after the H-GMLC receives the response information sent by the UDM, according to the identifier of the 'support double 3GPP access capability', the H-GMLC can know that the UE can use two 3GPP access networks at the same time, and then the H-GMLC sends a subscription request to the UDM for subscribing the change of registration information so as to monitor whether the UE can be registered in the network from the other 3GPP access in the positioning process. Sending subscription requests to the UDM may use a newly defined service, such as nudm_uecm_subscriber.

Step 5: if a roaming scenario exists, the H-GMLC sends a Location request to the V-GMLC1 where the user roams, and the service Ngmlc_location_ ProvideLocation Request of the GMLC may be used.

Step 6: the V-GMLC1 initiates a location request to the serving AMF1 of the UE. For example, a service namf_location_ ProvidePositioningInfo Request using the AMF initiates a Location request to AMF 1.

It should be noted that, if no roaming scenario exists, step 5 and step 6,H-GMLC are not executed to directly initiate a location request to AMF 1.

Step 7: AMF1 performs the subsequent positioning process.

Step 8: during the positioning process (e.g. any of steps 2 to 7 above), the UE is registered in the network using a second 3GPP Access (Access 2).

Step 9: the UDM receives and stores the registration from the AMF2 (may be the same AMF as the AMF1 or different AMFs), and notifies the H-GMLC of the Access2 Access information according to the subscription request of the H-GMLC, where the Access information may include: AMF2, V-GMLC2 (which may be the same or different from the V-GMLC 1), access type, and the like. The UDM may use a newly defined service, such as nudm_uecm_notification, when sending access information to the H-GMLC.

After the H-GMLC receives the new Access information, judging whether to initiate a positioning process aiming at an Access2 Access mode. The network difference between two access modes can be specifically determined, for example: if Access1 is the NTN Access type, access2 is the TN Access type, and the accuracy and the instantaneity of the TN network are considered, a positioning flow is initiated to the TN network of Access 2.

The H-GMLC may also determine, according to the analysis result of the network data analysis function, whether to initiate a positioning procedure for Access2, for example: and through analysis of a network data analysis function (NWAF), if the Access2 is judged to acquire a positioning result with higher precision or faster speed, a positioning process is initiated to the network of the Access 2. Alternatively, other policy means of the first core network node pre-configuration may also be used.

Step 10-step 12: if a new positioning process needs to be initiated for Access2 Access, the H-GMLC sends a positioning request to the V-GMLC2 and executes a subsequent positioning process.

The V-GMLC2 sends a positioning information acquisition request to the AMF 2; AMF2 performs the positioning process.

Step 13: optionally, the H-GLMC may choose to cancel the location request for Access1 Access. For example: when the positioning result for Access2 is received, the positioning result for Access1 is not received yet, and the H-GLMC can cancel the positioning request for Access1 Access. In particular, the H-GLMC may send a cancel location message to AMF1 via the V-GMLC1 or directly to AMF 1.

Step 14: after the positioning is completed, the H-GMLC cancels the subscription request to the UDM. The unsubscribing of the H-GMLC from the UDM may use a newly defined service such as Nudm_UECM_Unsubstricebe.

In another alternative embodiment, taking the first core network node as AMF1 as an example, the terminal registers in the 5G network, the AMF1 subscribes to the UDM for registration information change, and the AMF1 makes a positioning decision.

In this embodiment, the UE first registers to the 5G network through a first 3GPP Access (Access 1), and the 5G core network node used in the registration process includes: AMF1, LMF1, H-GMLC. In case of roaming scenario, the 5G core network node comprises a GMLC (V-GMLC 1) also including a visited place.

In the process of locating the UE, the UE is registered in the 5G network by using a second 3GPP Access mode (Access 2), and the used 5G core network node comprises: AMF2, LMF2, V-GMLC2 (for roaming scenarios, i.e. the second V-GMLC), H-GMLC. The two access modes of the UE may belong to the same PLMN or to different PLMNs.

As shown in fig. 3, includes:

Step 2: the LCS Client or AF initiates a location request to the UE, which is sent to the H-GMLC, which may be a 5GC-MT-LR procedure or a Deferred 5GC-MT-LR procedure.

Step 3: the H-GMLC acquires related information from the UDM to which the UE belongs, such as information of service AMF1, V-GMLC1, access type and the like of the UE from the UDM. The message returned by the UDM contains an identification of "support dual 3GPP access capability".

Step 4: the H-GMLC sends a location request to the V-GMLC1 (roaming scenario) where the user roams, and the message contains a "support double 3GPP access capability" identifier.

Step 5: the V-GMLC1 initiates a positioning request to the service AMF1 of the UE, and the message contains a mark of 'supporting double 3GPP access capability'.

Step 6: after the AMF1 receives the positioning request, it knows that the UE can use two 3GPP access networks at the same time according to the UE capability identifier, and then the AMF1 sends a subscription request to the UDM, and subscribes to the registration information change, so as to monitor whether the UE registers into the network from another 3GPP access in the positioning process. Sending subscription requests to the UDM may use a newly defined service, such as nudm_uecm_subscriber.

Step 7: AMF1 sends a request to determine a location to LMF 1.

Step 8: LMF1 performs the subsequent positioning process.

Step 9: during the positioning procedure, the UE registers into the network using the second 3GPP Access (Access 2).

Step 10: the UDM receives and stores the registration from the AMF2 (may be the same AMF as the AMF1 or may be a different AMF), and notifies the AMF1 of the Access information of the Access2 according to the subscription request of the AMF1, where the Access information may include: AMF2, V-GMLC2 (which may be the same or different from the V-GMLC 1), access type, and the like. The UDM may use a newly defined service, such as nudm_uecm_notification, when sending access information to AMF 1.

Step 11: after the AMF1 receives the new Access information, judging whether to initiate a positioning process aiming at an Access2 Access mode. The determination method is not described in detail herein.

If a new positioning process needs to be initiated for Access2 Access, the AMF1 sends a positioning request to the AMF 2. The positioning information transfer between AMFs may use a new AMF service, such as namf_location_context Request.

Step 12-step 14: AMF2 or LMF2 starts to execute the positioning procedure.

Step 15: AMF2 returns the positioning result to AMF1, and a Namf_location_Context Response message corresponding to the positioning request message can be used.

Step 16: alternatively, if AMF1 has not received a location result response for LMF1 at this time (i.e., has not received a location result for Access1 when receiving a location result for Access 2), AMF1 may choose to cancel the location request to LMF 1.

Step 17-step 18: AMF1 returns the positioning result to H-GMLC through V-GMLC 1.

Alternatively, after the location result is obtained by the LMF2, the location result can also be directly returned to the H-GMLC by the LMF2 through the V-GMLC2 or returned to the H-GMLC through the AMF2 and the V-GMLC 2.

Step 19: after the positioning is completed, AMF1 cancels the subscription request to the UDM. The AMF1 unsubscribes from the UDM service may use a newly defined service, such as nudm_uecm_notification.

In another alternative embodiment, taking the first core network node as AMF1 as an example, the terminal registers to the 5G network, the AMF1 subscribes to the UDM for registration information change, and the LMF1 makes a positioning decision.

As shown in fig. 4, includes:

Step 2: the LCS Client or AF initiates a location request to the UE, which is sent to the H-GMLC.

Step 6: after the AMF1 receives the positioning request, according to the UE capability identifier, the AMF1 knows that the UE can use two 3GPP access networks at the same time, and then the AMF1 sends a subscription request to the UDM, and subscribes to the change of the registration state of the user so as to monitor whether the UE can be registered in the network from the other 3GPP access in the positioning process.

Step 7: AMF1 sends a request for determining the position to LMF1, and the request message contains an identification of 'supporting double 3GPP access capability'.

Step 8: after receiving the request for determining the location, the LMF1 knows that the UE can use two 3GPP access networks at the same time according to the identifier of "support dual 3GPP access capability", and then the LMF1 sends a subscription request to the AMF1 to subscribe to the change of the registration state of the user. The subscription may use a new AMF subscription service such as Namf UECM subscriber.

Step 9: LMF1 performs the subsequent positioning process.

Step 10: during the positioning procedure, the UE registers into the network using the second 3GPP Access (Access 2).

Step 11: the UDM receives and stores the registration from the AMF2 (may be the same AMF as the AMF1 or may be a different AMF), and notifies the AMF1 of the Access information of the Access2 according to the subscription request of the AMF1, where the Access information may include: AMF2, V-GMLC2 (which may be the same or different from the V-GMLC 1), access type, and the like.

Step 12: AMF1 notifies LMF1 of access information according to the subscription request of LMF1. The Notification process may use a new AMF Notification service such as Namf UECM Notification.

Step 13: after receiving the new Access information, the LMF1 judges whether to initiate a positioning process aiming at an Access2 Access mode. The determination method is not described in detail herein.

If LMF1 judges that the positioning needs to be reinitiated for Access2, the response message sent to AMF1 contains a repositioning indication.

Step 14: AMF1 sends a positioning request to AMF2 according to response information returned by LMF1, if the response information contains a repositioning indication, the response information indicates that positioning needs to be initiated aiming at Access2 Access. The positioning information transfer between AMFs may use a new AMF service, such as namf_location_context Request.

Step 15 to step 18: AMF2 or LMF2 starts to execute the positioning procedure. AMF2 returns the positioning result to AMF1, and a Namf_location_Context Response message corresponding to the positioning request message can be used.

Step 19 to step 20: AMF1 returns the positioning result to H-GMLC through V-GMLC 1.

Step 21: after the positioning is completed, LMF1 cancels the subscription request to AMF 1. Unsubscribing may use a new AMF service such as namf_uecm_un ubscribe.

Step 22: after the positioning is completed, AMF1 cancels the subscription request to the UDM. The AMF1 unsubscribes from the UDM service may use a newly defined service, such as nudm_uecm_notification.

In another alternative embodiment, taking the first core network node as LMF1 as an example, the terminal registers with the 5G network, the LMF1 subscribes to the UDM for registration information change and the LMF1 makes a positioning decision.

In the process of locating the UE, the UE is registered in the 5G network by using a second 3GPP Access (Access 2), and the used 5G core network node comprises: AMF2, LMF2, V-GMLC2 (for roaming scenarios, i.e. the second V-GMLC), H-GMLC. The two access modes of the UE may belong to the same PLMN or to different PLMNs.

As shown in fig. 5, includes:

Step 6: AMF1 sends a request for determining the position to LMF1, and the request message contains an identification of 'supporting double 3GPP access capability'.

Step 7: after receiving the request for determining the location, the LMF1 sends a subscription request to the UDM to which the user belongs according to the identifier of "support dual 3GPP access capability", and subscribes to the change of the registration state of the user. The LMF1 sends a subscription request to the UDM may use a newly defined service, such as nudm_uecm_subscnibe. LMF1 can obtain the home UDM of the user through NRF query.

Step 8: LMF1 performs the subsequent positioning process.

Step 10: according to the subscription request of the LMF1, the UDM informs the LMF1 of the Access information of the Access2, wherein the Access information can comprise: AMF2, V-GMLC2 (which may be the same or different from the V-GMLC 1), access type, and the like.

Step 11: after receiving the new Access information, the LMF1 judges whether to initiate a positioning process aiming at an Access2 Access mode. The determination method is not described in detail herein.

If LMF1 judges that the positioning needs to be reinitiated for Access2, the response message sent to AMF1 contains a repositioning indication and Access information of Access2 obtained from UDM.

Step 12: the AMF1 judges whether to initiate a positioning process for the Access2 according to the response message returned by the LMF1, and if the response message contains a relocation instruction, the AMF1 sends a positioning request to the AMF2, wherein the relocation instruction indicates that the positioning process needs to be initiated for the Access2 Access.

Step 13-step 18: AMF2 or LMF2 starts to execute the positioning procedure. AMF2 returns the positioning result to AMF1, and a Namf_location_Context Response message corresponding to the position determination request message can be used. AMF1 returns the positioning result to H-GMLC through V-GMLC 1.

Step 19: LMF1 cancels the subscription request to the UDM. The LMF1 unsubscribes from UDM service may use a newly defined service such as nudm_uecm_notification.

The embodiment of the application discloses a method and a flow for positioning the UE under the scene of registering to a network by using two 3GPP accesses by single-subscription UE. When a first core network node executes a terminal positioning process based on a first 3GPP access, if the terminal is determined to support double 3GPP access, second access information corresponding to a second 3GPP access is acquired from a UDM, a positioning request is sent to the core network node corresponding to the second 3GPP access according to the second access information, the core network node corresponding to the second 3GPP access is instructed to execute terminal positioning, and the terminal positioning process when the terminal is registered to a network through two 3GPP access types is realized.

The above embodiments are described with respect to the positioning method of the present invention, and the following embodiments will further describe the corresponding devices with reference to the accompanying drawings.

Specifically, as shown in fig. 6, an embodiment of the present invention provides a positioning apparatus 600, applied to a first core network node, including:

a first processing unit 610, configured to, in a process of positioning a terminal through a first 3GPP access, if it is determined that the terminal supports dual 3GPP access capability, acquire second access information corresponding to a second 3GPP access from a unified data management function UDM to which the terminal belongs;

A first sending unit 620, configured to send a positioning request message to a core network node corresponding to the second 3GPP access according to the second access information.

Optionally, the first processing unit includes:

the first sending subunit is configured to send a first subscription request message to the UDM, where the first subscription request message is used to subscribe to a registration information change in the UDM, and the registration information change includes the second access information.

Optionally, the first processing unit includes:

and the first determining subunit is configured to determine that the terminal supports dual 3GPP access capability if the first core network node obtains a target capability identifier and the target capability identifier indicates that the terminal supports dual 3GPP access capability.

if the first core network node is a home gateway mobile location center, H-GMLC, the target capability identity is provided by the UDM;

if the first core network node is a first access and mobility management function AMF corresponding to a first 3GPP access, the target capability identification is provided by an H-GMLC or a first visiting gateway mobile location center V-GMLC corresponding to the first 3GPP access;

Optionally, the first sending unit is specifically configured to:

Optionally, the first transmitting unit includes: the second determining subunit is specifically configured to perform one of the following:

Optionally, the second determining subunit is specifically configured to:

Optionally, the apparatus further comprises:

and the second processing unit is used for acquiring the first access information corresponding to the 3GPP access from the UDM after receiving the positioning request message aiming at the first 3GPP access if the first core network node is the H-GMLC.

Optionally, the first access information includes at least one of:

the first 3GPP accesses a corresponding first AMF;

the first 3GPP accesses corresponding wireless type information;

the first 3GPP accesses a corresponding first V-GMLC.

Optionally, the second access information includes at least one of:

accessing a corresponding second AMF by a second 3 GPP;

The second 3GPP accesses corresponding wireless type information;

the second 3GPP accesses a corresponding second V-GMLC.

Optionally, the first sending unit is specifically configured to perform one of the following:

Optionally, the first sending unit is specifically configured to:

Optionally, the apparatus further comprises:

and the second sending unit is used for sending a first unsubscribe request message to the UDM under the condition that a positioning result of terminal positioning through the second 3GPP access is received.

Optionally, the apparatus further comprises:

the first receiving unit is used for receiving a second subscription request message sent by the first LMF;

Optionally, the apparatus further comprises:

and the second receiving unit is used for receiving a second unsubscribe request message sent by the first LMF by the first AMF under the condition that a positioning result of terminal positioning through the second 3GPP access is received.

It should be noted that, the above device provided in this embodiment of the present invention can implement all the method steps implemented in the method embodiment applied to the first core network node, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

As shown in fig. 7, an embodiment of the present invention further provides a positioning apparatus applied to a first core network node, where the apparatus includes: memory 720, transceiver 700, processor 710; wherein the memory 720 is used for storing a computer program; a transceiver 700 for receiving and transmitting data under the control of the processor 710; a processor 710 for reading the computer program in the memory and performing the following operations:

the transceiver 700 is configured to: and sending a positioning request message to a core network node corresponding to the second 3GPP access according to the second access information.

Optionally, the transceiver is configured to:

Optionally, the first access information includes at least one of:

the first 3GPP accesses a corresponding first AMF;

the first 3GPP accesses corresponding wireless type information;

the first 3GPP accesses a corresponding first V-GMLC.

Optionally, the second access information includes one of:

accessing a corresponding second AMF by a second 3 GPP;

the second 3GPP accesses corresponding wireless type information;

the second 3GPP accesses a corresponding second V-GMLC.

Optionally, the transceiver is configured to perform one of:

Optionally, the transceiver is further configured to:

receiving a second subscription request message sent by the first LMF;

Optionally, the transceiver is further configured to:

Wherein in fig. 7, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 710 and various circuits of memory represented by memory 720, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 700 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 710 in performing operations.

Processor 710 may be a Central Processing Unit (CPU), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or complex programmable logic device (Complex Programmable Logic Device, CPLD), and may also employ a multi-core architecture.

In addition, the embodiment of the present invention further provides a processor readable storage medium, on which a computer program is stored, where the program when executed by a processor implements the steps of the positioning method described above, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here. The readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), etc.

It should be noted that the technical solution provided in the embodiments of the present application may be applicable to various systems, especially a 5G system. Terminal devices and network devices are included in these various systems. The system may further include a core network portion, where the core network portion includes a core network node and a scheme executed by the core network node in the embodiment of the present application.

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

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

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A positioning method, comprising:

in the process of terminal positioning through a first 3GPP access, if the first core network node determines that the terminal supports double 3GPP access capability, acquiring second access information corresponding to a second 3GPP access from a unified data management function UDM to which the terminal belongs;

2. The method according to claim 1, wherein the obtaining second access information corresponding to the second 3GPP access from the UDM to which the terminal belongs includes:

3. The method of claim 1, wherein the determining that the terminal supports dual 3GPP access capability comprises:

4. A method according to claim 3, wherein the acquisition of the target capability identity comprises one of:

and if the first core network node is a first Location Management Function (LMF) corresponding to the first 3GPP access, the target capability identification is provided by a first AMF corresponding to the first 3GPP access.

5. The method according to claim 1, wherein the sending, according to the second access information, a positioning request message to a core network node corresponding to the second 3GPP access includes:

6. The method of claim 5, wherein the determining to locate the terminal via the second 3GPP access based on the first access information and the second access information corresponding to the first 3GPP access comprises one of:

7. The method of claim 6, wherein determining, from the response message sent by the second core network node, that the terminal is located by the second 3GPP access comprises:

8. The method of claim 5, wherein the method further comprises:

9. The method according to claim 5 or 8, wherein the first access information comprises at least one of:

the first 3GPP accesses a corresponding first AMF;

the first 3GPP accesses corresponding wireless type information;

the first 3GPP accesses a corresponding first V-GMLC.

10. The method of claim 1, wherein the second access information comprises at least one of:

accessing a corresponding second AMF by a second 3 GPP;

the second 3GPP accesses corresponding wireless type information;

the second 3GPP accesses a corresponding second V-GMLC.

11. The method according to claim 1, wherein the sending a positioning request message to the core network node corresponding to the second 3GPP access comprises one of:

12. The method of claim 11, wherein the instructing the first AMF to send the positioning request message to the second AMF corresponding to the second 3GPP access comprises:

13. The method according to claim 2, wherein the method further comprises:

14. The method of claim 2, wherein if the first core network node is a first AMF, after sending a first subscription request message to the UDM, the method further comprises:

Receiving a second subscription request message sent by the first LMF;

15. The method of claim 14, wherein the method further comprises:

16. A positioning device, comprising: memory, transceiver, processor:

17. The apparatus of claim 16, wherein the processor is configured to read the computer program in the memory and perform the following:

18. The apparatus of claim 16, wherein the processor is configured to read the computer program in the memory and perform the following:

19. The apparatus of claim 18, wherein the means for obtaining the target capability identification comprises one of:

20. The apparatus of claim 16, wherein the transceiver is configured to:

21. The apparatus of claim 20, wherein the processor is configured to read the computer program in the memory and perform one of:

22. The apparatus of claim 21, wherein the processor is configured to read the computer program in the memory and perform the following:

23. The apparatus of claim 20, wherein the processor is configured to read the computer program in the memory and perform the following:

if the first core network node is an H-GMLC, after receiving a positioning request message aiming at the first 3GPP access, acquiring first access information corresponding to the 3GPP access from the UDM.

24. The apparatus according to claim 20 or 23, wherein the first access information comprises at least one of:

The first 3GPP accesses a corresponding first AMF;

the first 3GPP accesses corresponding wireless type information;

the first 3GPP accesses a corresponding first V-GMLC.

25. The apparatus of claim 16, wherein the second access information comprises one of:

accessing a corresponding second AMF by a second 3 GPP;

the second 3GPP accesses corresponding wireless type information;

the second 3GPP accesses a corresponding second V-GMLC.

26. The apparatus of claim 16, wherein the transceiver is configured to perform one of:

if the first core network node is the H-GMLC, sending a positioning request message to a second V-GMLC corresponding to the second 3GPP access;

and if the first core network node is the first LMF, indicating the first AMF to send a positioning request message to a second AMF corresponding to the second 3GPP access.

27. The apparatus of claim 26, wherein the transceiver is further configured to:

28. The apparatus of claim 17, wherein the transceiver is further configured to:

29. The apparatus of claim 17, wherein if the first core network node is a first AMF, the transceiver is further configured to, after sending the first subscription request message to the UDM:

receiving a second subscription request message sent by the first LMF;

30. The apparatus of claim 29, wherein the transceiver is further configured to:

31. A positioning device, comprising:

32. A processor readable storage medium having stored thereon a computer program, which when executed by a processor realizes the steps of the positioning method according to any of claims 1 to 15.