A user equipment positioning method and device based on integrated access and backhaul

Abstract

The present disclosure proposes a positioning method for a user equipment UE based on integrated access and backhaul IAB. The solution is to determine the location information of the UE according to the information of the IAB node that establishes a connection with the UE to be positioned, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE, and the complex communication process required for tracking the UE located on a movable object and avoiding the power consumption of the UE in the complex communication process, thereby simplifying the UE positioning process and saving the power consumption of the UE.

Description

Technical Field

[0001] The present disclosure relates to the field of mobile communication technology, and in particular to a method and device for positioning user equipment based on integrated access and backhaul. Background Art

[0002] In the current network system, an integrated access and backhaul (IAB) site is introduced, which integrates a wireless access link as a communication link between a user equipment (UE) and an IAB site and a wireless backhaul link as a communication link between IAB sites. Therefore, the IAB site does not require a wired transmission network for data backhaul and is more suitable for deployment in dense scenarios.

[0003] However, in a network system that has introduced an IAB site, when a UE accesses the network system via the IAB site, if the existing location reporting process is used to locate the UE, the reported location may deviate from the current location of the UE. Summary of the invention

[0004] An embodiment of the first aspect of the present disclosure proposes a UE positioning method based on IAB, which is applied to an access and mobility management function (AMF) network element, wherein the IAB node is deployed at a fixed position, and the method includes: in response to a positioning service request for the UE, obtaining reporting information about the UE from a base station, wherein the reporting information includes an identifier of the IAB node corresponding to the UE; and determining the location information of the UE according to the reporting information.

[0005] Optionally, determining the location information of the UE according to the reported information includes: determining the coverage of the IAB node according to a preset configuration list and the identifier of the IAB node included in the reported information, wherein the preset configuration list stores the correspondence between the identifier of the IAB node and its coverage; and determining the location information of the UE according to the coverage of the IAB node.

[0006] Optionally, the reported information also includes one or more of the following: an identifier of a base station corresponding to the UE, and an identifier of a serving cell corresponding to the UE.

[0007] Optionally, determining the location information of the UE according to the reported information includes: transmitting the reported information to a network exposure function (NEF) network element, so that the NEF network element determines the location information of the UE based on at least one of an identifier of the IAB node included in the reported information, an identifier of the base station corresponding to the UE, and an identifier of the service cell corresponding to the UE.

[0008] A second aspect embodiment of the present disclosure provides a UE positioning method based on IAB, which is applied to a base station, wherein the IAB node is deployed at a fixed position, and the method includes: in response to a location information reporting request for the UE, obtaining reporting information, wherein the reporting information includes an identifier of the IAB node corresponding to the UE; and transmitting the reporting information to an AMF network element, so that the AMF network element or NEF network element determines the location information of the UE based on the reporting information.

[0009] Optionally, transmitting the reporting information to the AMF network element includes: determining whether the IAB node corresponding to the UE is an authorized IAB node; when the IAB node corresponding to the UE is an authorized IAB node, transmitting the reporting information including the identifier of the IAB node to the AMF network element.

[0010] Optionally, the acquiring the reporting information includes: acquiring the reporting information via an F1 interface between the base station and the IAB node or according to base station local configuration information, wherein the base station local configuration information indicates a correspondence between the IAB node and the F1 interface.

[0011] Optionally, the obtaining of the reporting information includes: obtaining the reporting information via an NR Uu link between each IAB node.

[0012] Optionally, the reported information also includes one or more of the following: an identifier of a base station corresponding to the UE, and an identifier of a serving cell corresponding to the UE.

[0013] An embodiment of the third aspect of the present disclosure provides a UE positioning method based on IAB, which is applied to an NEF network element, wherein the IAB node is deployed at a fixed position, and the method includes: in response to a positioning service request for the UE, obtaining reporting information about the UE from an AMF network element, wherein the reporting information includes an identifier of the IAB node corresponding to the UE; and determining the location information of the UE based on the reporting information.

[0014] Optionally, determining the location information of the UE according to the reported information includes: determining the coverage of the IAB node according to a preset configuration list and the identifier of the IAB node included in the reported information, wherein the preset configuration list stores the correspondence between the identifier of the IAB node and its coverage; and determining the location information of the UE according to the coverage of the IAB node.

[0015] Optionally, the reported information also includes one or more of the following: an identifier of a base station corresponding to the UE, and an identifier of a serving cell corresponding to the UE.

[0016] An embodiment of the fourth aspect of the present disclosure proposes a UE positioning method based on IAB, which is applied to an AMF network element, wherein the IAB node is deployed on a movable object, and the method includes: in response to a positioning service request for the UE, obtaining an identifier of the IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores the correspondence between the identifiers of the UE and the IAB node; based on the identifier of the IAB node, obtaining the location information of the IAB node from a base station; and determining the location information of the UE based on the location information of the IAB node.

[0017] Optionally, when the UE registers with the network via the IAB node deployed on the movable object, the corresponding relationship between the UE and the identifier of the IAB node deployed on the movable object is stored on the UDM platform.

[0018] Optionally, the location information of the IAB node includes one or more of the following: an identifier of a base station corresponding to the IAB node, and an identifier of a serving cell corresponding to the IAB node.

[0019] An embodiment of the fifth aspect of the present disclosure proposes a UE positioning method based on IAB, which is applied to a gateway mobile location center (GMLC), wherein the IAB node is deployed on a movable object, and the method includes: in response to a positioning service request for the UE, obtaining an identifier of the IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the identifiers of the UE and the IAB node; based on the identifier of the IAB node, obtaining the location information of the IAB node via a location management function (LMF) network element; and determining the location information of the UE according to the location information of the IAB node.

[0020] Optionally, when the UE registers with the network via the IAB node deployed on the movable object, the corresponding relationship between the UE and the identifier of the IAB node deployed on the movable object is stored on the UDM platform.

[0021] Optionally, the location information of the IAB node includes graphical geographical location information of the IAB node.

[0022] An embodiment of the sixth aspect of the present disclosure proposes a UE positioning method based on IAB, which is applied to a NEF network element, wherein the IAB node is deployed on a movable object, and the method includes: in response to a positioning service request for the UE, obtaining an identifier of the IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the identifiers of the UE and the IAB node; based on the identifier of the IAB node, obtaining the location information of the IAB node from a mobility management function (AMF) network element or a GMLC; and determining the location information of the UE according to the location information of the IAB node.

[0023] Optionally, when the UE registers with the network via the IAB node deployed on the movable object, the corresponding relationship between the UE and the identifier of the IAB node deployed on the movable object is stored on the UDM platform.

[0024] Optionally, the location information of the IAB node includes one or more of the following: an identifier of a base station corresponding to the IAB node, graphical geographical location information of the IAB node, and an identifier of a serving cell corresponding to the IAB node.

[0025] The seventh aspect embodiment of the present disclosure proposes a UE positioning device based on IAB, which is applied to an access and mobility management function (AMF) network element, wherein the IAB node is deployed at a fixed position, and the device includes: an acquisition module, configured to obtain reporting information about the UE from a base station in response to a positioning service request for the UE, wherein the reporting information includes an identifier of the IAB node corresponding to the UE; and a determination module, configured to determine the location information of the UE based on the reported information.

[0026] An eighth aspect embodiment of the present disclosure provides a UE positioning device based on IAB, which is applied to a base station, wherein the IAB node is deployed at a fixed position, and the device includes: an acquisition module, configured to obtain reporting information in response to a location information reporting request for the UE, the reporting information including an identifier of the IAB node corresponding to the UE; and a sending module, configured to transmit the reporting information to an AMF network element, so that the AMF network element determines the location information of the UE based on the reporting information.

[0027] The ninth aspect embodiment of the present disclosure provides a UE positioning device based on IAB, which is applied to a NEF network element, wherein the IAB node is deployed at a fixed position, and the device includes: an acquisition module, configured to obtain reporting information about the UE from a mobility management function AMF network element in response to a positioning service request for the UE, wherein the reporting information includes an identifier of the IAB node corresponding to the UE; and a determination module, configured to determine the location information of the UE based on the reporting information.

[0028] The tenth aspect embodiment of the present disclosure proposes a UE positioning device based on IAB, which is applied to an AMF network element, wherein the IAB node is deployed on a movable object, and the device includes: a first acquisition module, configured to obtain an identifier of an IAB node corresponding to the UE from a unified data management (UDM) platform in response to a positioning service request for the UE, wherein the UDM platform stores a correspondence between the identifiers of the UE and the IAB node; a second acquisition module, configured to obtain the location information of the IAB node from a base station based on the identifier of the IAB node; and a determination module, configured to determine the location information of the UE based on the location information of the IAB node.

[0029] An eleventh embodiment of the present disclosure proposes a positioning device for UE based on IAB, which is applied to a gateway mobile location center (GMLC), wherein the IAB node is deployed on a movable object, and the device includes: the device obtains an identifier of the IAB node corresponding to the UE from a unified data management (UDM) platform in response to a positioning service request for the UE, wherein the UDM platform stores a correspondence between the identifiers of the UE and the IAB node; a second acquisition module is configured to obtain the location information of the IAB node via a positioning management function (LMF) network element based on the identifier of the IAB node; and a determination module is configured to determine the location information of the UE based on the location information of the IAB node.

[0030] The twelfth aspect embodiment of the present disclosure proposes a UE positioning device based on IAB, which is applied to a NEF network element, wherein the IAB node is deployed on a movable object, and the device includes: a first acquisition module, configured to obtain an identifier of an IAB node corresponding to the UE from a unified data management (UDM) platform in response to a positioning service request for the UE, wherein the UDM platform stores a correspondence between the identifiers of the UE and the IAB node; a second acquisition module, configured to obtain the location information of the IAB node from an AMF network element or a GMLC based on the identifier of the IAB node; and a determination module, configured to determine the location information of the UE based on the location information of the IAB node.

[0031] The thirteenth aspect embodiment of the present disclosure proposes a communication device, including: a transceiver; a memory; a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the IAB-based UE positioning method described in the above-mentioned first aspect embodiment, or the second aspect embodiment, or the third aspect embodiment, or the fourth aspect embodiment, or the fifth aspect embodiment, or the sixth aspect embodiment.

[0032] The fourteenth aspect embodiment of the present disclosure proposes a computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the IAB-based UE positioning method described in the above-mentioned first aspect embodiment, or the second aspect embodiment, or the third aspect embodiment, or the fourth aspect embodiment, or the fifth aspect embodiment, or the sixth aspect embodiment can be implemented.

[0033] The embodiment of the present disclosure provides a method and device for positioning a UE based on IAB. When the IAB node is deployed at a fixed position, the location information of the UE is determined according to the reported information by obtaining the identification of the IAB node corresponding to the target UE (UE to be located), thereby avoiding the problem that when the existing location reporting process is used to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE. When the IAB node is deployed on a movable object, the identification of the IAB node corresponding to the target UE is obtained from the UDM platform, and the location information of the IAB node is obtained based on the identification of the IAB node as the location information of the target UE. When the IAB node is deployed on a movable object, the UE that accesses the network through the IAB node is usually also located on the movable object. Therefore, the location information of the movable IAB node can be regarded as the location information of the UE that accesses the network through it. Therefore, the location information of the UE can be obtained by obtaining the location information of the IAB node, thereby avoiding the complex communication process required to track the UE located on the movable object and avoiding the power consumption of the UE in the complex communication process, simplifying the UE positioning process and saving the power consumption of the UE.

[0034] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0036] Figure 1 A schematic diagram showing the coverage of an IAB node and the UEs it serves;

[0037] Figure 2 is a flowchart of a UE positioning method based on IAB according to an embodiment of the present disclosure;

[0038] Figure 3 It is a flowchart of a UE positioning method based on IAB according to an embodiment of the present disclosure;

[0039] Figure 4 It is a flowchart of a UE positioning method based on IAB according to an embodiment of the present disclosure;

[0040] Figure 5 It is a flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0041] Figure 6It is a flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0042] Figure 7 It is a flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0043] Figure 8 It is a flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0044] Fig. 9 It is a flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0045] Fig.10 It is a flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0046] Fig.11 4 is a flow chart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0047] Fig.12 4 is a flow chart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0048] Fig.13 4 is a flow chart of another UE positioning method based on IAB according to an embodiment of the present disclosure;

[0049] Fig.14 A schematic diagram of the structure of a UE positioning device based on IAB provided in an embodiment of the present disclosure;

[0050] Fig.15 A schematic diagram of the structure of a UE positioning device based on IAB provided in an embodiment of the present disclosure;

[0051] Fig.16 A schematic diagram of the structure of a UE positioning device based on IAB provided in an embodiment of the present disclosure;

[0052] Fig.17 A schematic diagram of the structure of another UE positioning device based on IAB provided in an embodiment of the present disclosure;

[0053] Fig.18 A schematic diagram of the structure of another UE positioning device based on IAB provided in an embodiment of the present disclosure;

[0054] Fig.19 A schematic diagram of the structure of another IAB-based UE positioning device provided in an embodiment of the present disclosure;

[0055] Fig. 20A schematic diagram of the structure of another IAB-based UE positioning device provided in an embodiment of the present disclosure;

[0056] Fig.21 A structural diagram of another IAB-based UE positioning device provided in an embodiment of the present disclosure;

[0057] Fig. 22 A structural diagram of another IAB-based UE positioning device provided in an embodiment of the present disclosure;

[0058] Fig.23 A structural diagram of another IAB-based UE positioning device provided in an embodiment of the present disclosure;

[0059] Fig.24 A schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0060] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0061] In the current field of mobile communication technology, especially in the field of 5G New Radio (NR) technology, an Integrated Access and Backhaul (IAB) site is introduced. The site integrates a wireless access link and a wireless backhaul link, wherein the wireless access link is a communication link between the UE and the IAB site, and the wireless backhaul link is a communication link between the IAB sites, providing a data backhaul path. Therefore, the IAB site does not need a wired transmission network for data backhaul. Based on this, the IAB site is easier to deploy in dense scenarios, reducing the burden of deploying a wired transmission network. In the IAB network, a wireless backhaul node can provide wireless access services for terminal devices. The wireless backhaul node can be called an IAB node (IAB node) or a relay node (RN, relay node). The service data of the terminal device can be transmitted by the wireless backhaul node connected to the host node through the wireless backhaul link. The host node can be an IAB donor or a donor gNodeB (DGNB, donor gNodeB).

[0062] Figure 1 FIG. 1 is a schematic diagram showing the coverage of an IAB node and the user equipment (UE) it serves. Figure 1As shown in FIG. 1 , an IAB host and two IAB nodes are shown, wherein the UE accesses the network via the IAB node IAB node2, i.e., the UE is currently located within the coverage of the IAB node2. However, when the existing location reporting process is used to locate the UE, for example, when the AMF network element requests to report the location of the UE in the connected state, the reported UE location information is the cell identifier. Figure 1 In the case shown, it is the identifier of cell A, and the location of the UE obtained based on the coverage of the cell is obviously deviated from the current location of the UE, because the UE is not currently located in the coverage of cell A. Therefore, in the IAB network, using the existing location reporting process to locate the UE is likely to cause the problem that the obtained UE location information is obviously deviated from the actual location of the UE.

[0063] In other cases, the IAB node may also be deployed on a movable object, and a UE located on the movable object may access the network via the IAB node. When the UE accesses the network via the IAB node on the movable object, positioning the UE requires a complex communication process, and the UE consumes more power in the process.

[0064] In view of this, the present disclosure provides a UE positioning method and apparatus based on IAB, which determines the location information of the UE according to the IAB node corresponding to the target UE (UE to be positioned).

[0065] Specifically, when the IAB node is deployed at a fixed position, by obtaining the reported information including the identifier of the IAB node corresponding to the target UE, the location information of the UE is determined according to the reported information, thereby avoiding the problem that when the existing location reporting process is used to locate the UE, the reported UE location information, such as the identifier information of the cell to which the UE belongs, cannot fully represent the current location of the UE. When the IAB node is deployed on a movable object, by obtaining the identifier of the IAB node corresponding to the target UE from the UDM platform, and obtaining the location information of the IAB node based on the identifier of the IAB node as the location information of the target UE. When the IAB node is deployed on a movable object, the UE that accesses the network through the IAB node is usually also located on the movable object, so the location information of the movable IAB node can be regarded as the location information of the UE that accesses the network through it, so that the location information of the UE can be obtained by obtaining the location information of the IAB node, thereby avoiding the complex communication process required for tracking the UE located on the movable object and avoiding the power consumption of the UE in the complex communication process, simplifying the UE positioning process and saving the power consumption of the UE.

[0066] Figure 2A flow chart of a UE positioning method based on IAB according to an embodiment of the present disclosure is shown, wherein the IAB node is deployed at a fixed position. When the IAB node is located at a fixed position, the coverage range of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the method shown below can be used to achieve UE positioning. In this embodiment, the method is executed by an AMF network element, such as Figure 2 As shown, the UE positioning method based on IAB includes the following steps:

[0067] S201, in response to a positioning service request for a UE, obtaining reporting information about the UE from a base station, where the reporting information includes an identifier of an IAB node corresponding to the UE.

[0068] When the AMF network element receives a positioning service request for the target UE, for example, the positioning service request is received from the application function (AF) via the NEF network element, the AMF network element may obtain reporting information about the target UE from the base station, wherein the reporting information includes the identifier of the IAB node corresponding to the target UE. "IAB node corresponding to the UE" may refer to an IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0069] In some embodiments, in response to a positioning service request for a target UE, the AMF network element may trigger a location reporting process, during which the base station may report the identifier of the IAB node connected to the target UE to the AMF network element. Specifically, for example, after receiving the positioning service request for the target UE, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station, in response to the location reporting request, transmits the reporting information including the identifier of the IAB node connected to the target UE to the AMF network element.

[0070] In some embodiments, in addition to the identifier of the IAB node that establishes a connection with the target UE, the identifier of the base station corresponding to the target UE and / or the identifier of the cell corresponding to the target UE may also be reported to the AMF network element.

[0071] S202: Determine the location information of the UE according to the reported information.

[0072] After obtaining the reported information, the AMF network element can determine the location information of the target UE based on the reported information. Since the reported information received by the AMF network element includes the identifier of the IAB node that establishes a connection with the target UE, and as mentioned above, the IAB node is deployed at a fixed location, the identifier of the IAB node can be mapped to a fixed area of ​​the core network, and thus, the location information of the target UE can be determined based on the identifier of the IAB node.

[0073] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the location information of the UE is determined based on the reporting information, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0074] Figure 3 The flowchart of a UE positioning method based on IAB according to an embodiment of the present disclosure is shown in the figure, wherein the IAB node is deployed at a fixed position, and the coverage range of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the method shown below can be used to achieve UE positioning. In this embodiment, the method is executed by an AMF network element, such as Figure 3 As shown, the UE positioning method based on IAB includes the following steps:

[0075] S301, in response to a positioning service request for a UE, obtaining reporting information about the UE from a base station, where the reporting information includes an identifier of an IAB node corresponding to the UE.

[0076] When the AMF network element receives a positioning service request for the target UE, for example, the positioning service request is received from the application function (AF) via the NEF network element, the AMF network element may obtain reporting information about the target UE from the base station, wherein the reporting information includes the identifier of the IAB node corresponding to the target UE. "IAB node corresponding to the UE" may refer to an IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0077] In some embodiments, in response to a positioning service request for a target UE, the AMF network element may trigger a location reporting process, during which the base station may report the identifier of the IAB node connected to the target UE to the AMF network element. Specifically, for example, after receiving the positioning service request for the target UE, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station, in response to the location reporting request, transmits the reporting information including the identifier of the IAB node connected to the target UE to the AMF network element.

[0078] In some embodiments, in addition to the identifier of the IAB node that establishes a connection with the target UE, the identifier of the base station corresponding to the target UE and / or the identifier of the cell corresponding to the target UE may also be reported to the AMF network element.

[0079] S302: Determine the coverage of the IAB node according to the preset configuration list and the identifier of the IAB node included in the reported information, wherein the preset configuration list stores a correspondence between the identifier of the IAB node and its coverage.

[0080] After obtaining the reported information, the AMF network element can determine the location information of the target UE based on the reported information.

[0081] Specifically, since the coverage of an IAB node located at a fixed position is a fixed area, a configuration list can be pre-specified, in which the coverage of each IAB node located at a fixed position is specified. For example, the correspondence between the identifier of the IAB node located at a fixed position and its coverage can be stored in the configuration list.

[0082] The configuration list can be configured in the AMF network element, or can be configured in the NEF network element, or can be configured in both the AMF network element and the NEF network element.

[0083] In this embodiment, the configuration list is configured in the AMF network element or has been obtained by the AMF network element from the NEF network element. After the AMF network element receives the reporting information including the identifier of the IAB node connected to the target UE, the AMF network element can obtain the coverage of the IAB node connected to the target UE according to the configuration list, for example, by querying the configuration list and obtaining the coverage of the IAB node according to the identifier of the IAB node.

[0084] S303: Determine the location information of the UE according to the coverage of the IAB node.

[0085] After determining the coverage of the IAB node that establishes a connection with the target UE, the location information of the UE can be determined based on the coverage. Figure 1As shown, after the coverage of the IAB node IAB node2 establishing a connection with the UE is determined, the location information of the UE can be determined, and it can be determined that the UE is located within the coverage of the IAB node2.

[0086] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the coverage of the IAB node is determined according to the reporting information, and the location information of the UE is determined based on the coverage of the IAB node, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0087] Figure 4 The flowchart of a UE positioning method based on IAB according to an embodiment of the present disclosure is shown in the figure, wherein the IAB node is deployed at a fixed position, and the coverage range of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the method shown below can be used to achieve UE positioning. In this embodiment, the method is executed by an AMF network element, such as Figure 4 As shown, the UE positioning method based on IAB includes the following steps:

[0088] S401, in response to a positioning service request for a UE, obtaining reporting information about the UE from a base station, where the reporting information includes an identifier of an IAB node corresponding to the UE.

[0089] When the AMF network element receives a positioning service request for the target UE, for example, the positioning service request is received from the application function (AF) via the NEF network element, the AMF network element may obtain reporting information about the target UE from the base station, wherein the reporting information includes the identifier of the IAB node corresponding to the target UE. "IAB node corresponding to the UE" may refer to an IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0090] In some embodiments, in response to a positioning service request for a target UE, the AMF network element may trigger a location reporting process, during which the base station may report the identifier of the IAB node connected to the target UE to the AMF network element. Specifically, for example, after receiving the positioning service request for the target UE, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station, in response to the location reporting request, transmits the reporting information including the identifier of the IAB node connected to the target UE to the AMF network element.

[0091] In some embodiments, in addition to the identifier of the IAB node that establishes a connection with the target UE, the identifier of the base station corresponding to the target UE and the identifier of the cell corresponding to the target UE may also be reported to the AMF network element.

[0092] S402: Transmit the reporting information to the NEF network element, so that the NEF network element determines the location information of the UE according to at least one of the identifier of the IAB node included in the reporting information, the identifier of the base station corresponding to the UE, and the identifier of the serving cell corresponding to the UE.

[0093] After the AMF network element receives the reporting information including the identifier of the IAB node that establishes a connection with the target UE, the AMF network element can transmit the reporting information to the NEF network element, so that the NEF network element can determine the location information of the target UE based on the identifier of the IAB node that establishes a connection with the target UE, the identifier of the base station corresponding to the UE, and the identifier of the service cell corresponding to the UE.

[0094] Specifically, since the coverage of an IAB node located at a fixed position is a fixed area, a configuration list can be pre-specified, in which the coverage of each IAB node located at a fixed position is specified. For example, the correspondence between the identifier of the IAB node located at a fixed position and its coverage can be stored in the configuration list.

[0095] The configuration list can be configured in the AMF network element, or can be configured in the NEF network element, or can be configured in both the AMF network element and the NEF network element.

[0096] In this embodiment, the configuration list is configured in the NEF network element or obtained from the AMF network element. After the AMF network element receives the reporting information including the identifier of the IAB node that establishes a connection with the target UE, the AMF network element can transmit the reporting information to the NEF network element, and the NEF network element can obtain the coverage of the IAB node that establishes a connection with the target UE according to the configuration list after receiving the reporting information, for example, by querying the configuration list and obtaining the coverage of the IAB node according to the identifier of the IAB node. After determining the coverage of the IAB node that establishes a connection with the target UE, the NEF network element can also determine the specific location information of the UE based on the coverage, the identifier of the base station corresponding to the UE, and the identifier of the service cell corresponding to the UE.

[0097] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the reporting information is sent to the NEF network element, so that the NEF network element can determine the location information of the UE based on the reporting information, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0098] Figure 5 The flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure is shown in the figure, wherein the IAB node is deployed at a fixed position. When the IAB node is located at a fixed position, the coverage of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the method shown below can be used to achieve UE positioning. In this embodiment, the method is executed by a base station, such as Figure 5 As shown, the UE positioning method based on IAB includes the following steps:

[0099] S501: In response to a location information reporting request for a UE, obtain reporting information, where the reporting information includes an identifier of an IAB node corresponding to the UE.

[0100] After receiving the location information reporting request for the target UE, the base station obtains reporting information about the target UE, wherein the reporting information includes the identifier of the IAB node corresponding to the target UE. The "IAB node corresponding to the UE" may refer to the IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0101] In some embodiments, in response to a positioning service request for a target UE, such as receiving the positioning service request from an application function (AF) via an NEF network element, the AMF network element may trigger a location reporting process, during which the base station may obtain the identifier of the IAB node that is connected to the target UE. Specifically, for example, after receiving the positioning service request for the target UE, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station, in response to the location reporting request, obtains reporting information including the identifier of the IAB node that is connected to the target UE.

[0102] In some embodiments, in addition to the identifier of the IAB node establishing a connection with the target UE, the base station may also obtain the identifier of the base station corresponding to the target UE and / or the identifier of the cell corresponding to the target UE and include them in the reporting information.

[0103] S502, transmit the reported information to the AMF network element, so that the AMF network element or the NEF network element determines the location information of the UE based on the reported information.

[0104] After obtaining the reporting information including the identifier of the IAB node that establishes a connection with the target UE, the base station transmits the reporting information to the AMF network element or reports it to the NEF network element via the AMF network element, so that the AMF network element or the NEF network element can determine the location information of the target UE based on the reporting information. Since the reporting information includes the identifier of the IAB node that establishes a connection with the target UE, and as mentioned above, the IAB node is deployed at a fixed location, the identifier of the IAB node can be mapped to a fixed area of ​​the core network, and thus, the location information of the target UE can be determined based on the identifier of the IAB node.

[0105] In an embodiment of the present disclosure, by obtaining reporting information including the identifier of the IAB node corresponding to the target UE (UE to be located), the reporting information is transmitted to the AMF network element or the NEF network element, so that the AMF network element or the NEF network element can determine the location information of the UE based on the identifier of the IAB node, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identifier information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0106] Figure 6 The flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure is shown in FIG. 1 , wherein the IAB node is deployed at a fixed position, and the coverage range of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the method shown below can be used to achieve UE positioning. In this embodiment, the method is executed by a base station, such as Figure 6 As shown, the UE positioning method based on IAB includes the following steps:

[0107] S601: In response to a location information reporting request for a UE, obtain reporting information, where the reporting information includes an identifier of an IAB node corresponding to the UE.

[0108] After receiving the location information reporting request for the target UE, the base station obtains reporting information about the target UE, wherein the reporting information includes the identifier of the IAB node corresponding to the target UE. The "IAB node corresponding to the UE" may refer to the IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0109] In some embodiments, in response to a positioning service request for a target UE, such as receiving the positioning service request from an application function (AF) via an NEF network element, the AMF network element may trigger a location reporting process, during which the base station may obtain the identifier of the IAB node that is connected to the target UE. Specifically, for example, after receiving the positioning service request for the target UE, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station obtains reporting information including the identifier of the IAB node that is connected to the target UE in response to the location reporting request.

[0110] In some embodiments, in addition to the identifier of the IAB node establishing a connection with the target UE, the base station may also obtain the identifier of the base station corresponding to the target UE and / or the identifier of the cell corresponding to the target UE and include them in the reporting information.

[0111] S602: Determine whether the IAB node corresponding to the UE is an authorized IAB node.

[0112] When the UE accesses the network via an unauthorized IAB node, security issues may arise. To avoid this problem, the base station may determine whether the IAB node corresponding to the target UE is an authorized IAB node. When it is determined that the IAB node corresponding to the target UE is an authorized IAB node, S603 is executed. When it is determined that the IAB node corresponding to the target UE is not an authorized IAB node, the base station may not transmit the reporting information.

[0113] S603: When the IAB node corresponding to the UE is an authorized IAB node, the reporting information including the identifier of the IAB node is transmitted to the AMF network element.

[0114] When it is determined that the IAB node corresponding to the target UE is an authorized IAB node, the base station transmits the reporting information including the identifier of the IAB node connected to the target UE to the AMF network element, so that the AMF network element can determine the location information of the target UE based on the reporting information. Since the reporting information includes the identifier of the IAB node connected to the target UE, and as mentioned above, the IAB node is deployed at a fixed location, the identifier of the IAB node can be mapped to a fixed area of ​​the core network, and thus, the location information of the target UE can be determined based on the identifier of the IAB node.

[0115] In an embodiment of the present disclosure, by acquiring reporting information including the identifier of the IAB node corresponding to the target UE (UE to be located) and transmitting the reporting information to the AMF network element when it is determined that the IAB node corresponding to the target UE is an authorized IAB node, the AMF network element can determine the location information of the UE according to the identifier of the IAB node, thereby avoiding the problem that when the existing location reporting process is used to locate the UE, the reported UE location information, such as the identifier information of the cell to which the UE belongs, cannot accurately represent the current location of the UE. In addition, when it is determined that the IAB node corresponding to the target UE is not an authorized IAB node, the reporting information is not transmitted, thereby avoiding security issues caused by positioning or data transmission of UEs that access the network via unauthorized IAB nodes.

[0116] Figure 7 The flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure is shown in FIG. 1 , wherein the IAB node is deployed at a fixed position, and the coverage range of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the method shown below can be used to achieve UE positioning. In this embodiment, the method is executed by a base station, such as Figure 7 As shown, the UE positioning method based on IAB includes the following steps:

[0117] S701, in response to a location information reporting request for a UE, obtaining reporting information via an F1 interface between a base station and an IAB node or according to local configuration information, wherein the reporting information includes an identifier of an IAB node corresponding to the UE, and the local configuration information indicates a corresponding relationship between the IAB node and the F1 interface.

[0118] After receiving the location information reporting request for the target UE, the base station obtains reporting information about the target UE, wherein the reporting information includes the identifier of the IAB node corresponding to the target UE. The "IAB node corresponding to the UE" may refer to the IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0119] In some embodiments, in response to a positioning service request for a target UE, such as receiving the positioning service request from an application function (AF) via an NEF network element, the AMF network element may trigger a location reporting process, during which the base station may obtain the identifier of the IAB node that is connected to the target UE. Specifically, for example, after receiving the positioning service request for the target UE, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station obtains reporting information including the identifier of the IAB node that is connected to the target UE in response to the location reporting request.

[0120] In the IAB network, there is a communication link via the F1 interface between the host base station (which can be the IAB host) and each IAB node, and communication can be performed between the host base station and each IAB node via the communication link, so that the base station can obtain the reporting information including the identifier of the IAB node from the IAB node corresponding to the target UE via the F1 interface. Alternatively, the base station can obtain the reporting information including the identifier of the IAB node that establishes a connection with the target UE from the local configuration information. If the UE accesses the base station through the IAB node, and the base station is connected to the IAB node through the F1 interface, the base station can determine through which F1 interface (or its port) the UE's information is received, and then obtain the identifier of the IAB node corresponding to the F1 interface (or its port) from the local configuration information. The local configuration information can indicate the correspondence between the IAB node and the F1 interface, for example, it can indicate through which port of the F1 interface the IAB node accesses the base station.

[0121] In some embodiments, in addition to the identifier of the IAB node establishing a connection with the target UE, the base station may also obtain the identifier of the base station corresponding to the target UE and / or the identifier of the cell corresponding to the target UE and include them in the reporting information.

[0122] S702, transmit the reported information to the AMF network element so that the AMF network element determines the location information of the UE based on the reported information.

[0123] After obtaining the reporting information including the identifier of the IAB node that establishes a connection with the target UE, the base station transmits the reporting information to the AMF network element, so that the AMF network element can determine the location information of the target UE based on the reporting information. Since the reporting information includes the identifier of the IAB node that establishes a connection with the target UE, and as mentioned above, the IAB node is deployed at a fixed location, the identifier of the IAB node can be mapped to a fixed area of ​​the core network, and thus, the location information of the target UE can be determined based on the identifier of the IAB node.

[0124] In the embodiment of the present disclosure, by acquiring the reported information including the identifier of the IAB node corresponding to the target UE (UE to be located), the reported information is transmitted to the AMF network element, so that the AMF network element can determine the location information of the UE according to the identifier of the IAB node, thereby avoiding the problem that when the existing location reporting process is used to locate the UE, the reported UE location information, such as the identifier information of the cell to which the UE belongs, cannot fully represent the current location of the UE. And through the F1 interface between the base station and the IAB node, the corresponding information can be directly obtained from the IAB node corresponding to the target UE.

[0125] In some embodiments, in order to avoid security issues caused by accessing the network via an unauthorized IAB node, the base station may determine whether the IAB node corresponding to the target UE is an authorized IAB node. When it is determined that the IAB node corresponding to the target UE is an authorized IAB node, the reporting information including the identifier of the IAB node connected to the target UE is transmitted to the AMF network element, so that the AMF network element can determine the location information of the target UE based on the reporting information. When it is determined that the IAB node corresponding to the target UE is not an authorized IAB node, the base station may not transmit the reporting information, thereby avoiding security issues caused by positioning or data transmission of the UE accessing the network via an unauthorized IAB node.

[0126] Figure 8 The flowchart of another UE positioning method based on IAB according to an embodiment of the present disclosure is shown in FIG. 1 , wherein the IAB node is deployed at a fixed position, and the coverage range of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the method shown below can be used to achieve UE positioning. In this embodiment, the method is executed by a base station, such as Figure 8 As shown, the UE positioning method based on IAB includes the following steps:

[0127] S801, in response to a location information reporting request for a UE, obtaining reporting information via an NR Uu link between various IAB nodes, where the reporting information includes an identifier of the IAB node corresponding to the UE.

[0128] After receiving the location information reporting request for the target UE, the base station obtains reporting information about the target UE, wherein the reporting information includes the identifier of the IAB node corresponding to the target UE. The "IAB node corresponding to the UE" may refer to the IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0129] In some embodiments, in response to a positioning service request for a target UE, such as receiving the positioning service request from an application function (AF) via an NEF network element, the AMF network element may trigger a location reporting process, during which the base station may obtain the identifier of the IAB node that is connected to the target UE. Specifically, for example, after receiving the positioning service request for the target UE, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station obtains reporting information including the identifier of the IAB node that is connected to the target UE in response to the location reporting request.

[0130] In an IAB network, when there are multiple IAB nodes, the multiple IAB nodes can be cascaded via an NR Uu link. For example, the first IAB node is connected to the second IAB node via an NR Uu link, the second IAB node is connected to the third IAB node via an NR Uu link... and so on. The N-1th IAB node is connected to the Nth IAB node via an NR Uu link, and the Nth IAB node is connected to the host base station via an NR Uu link. Thus, the base station can obtain reporting information including the identifier of the IAB node from the IAB node corresponding to the target UE via the NR Uu link between each IAB node.

[0131] For example, for a network with four IAB nodes, wherein the first IAB node is connected to the second IAB node via an NR Uu link, the second IAB node is connected to the third IAB node via an NR Uu link, the third IAB node is connected to the fourth IAB node via an NR Uu link, and the fourth IAB node is connected to the host base station via an NR Uu link, if the IAB node corresponding to the target UE is the first IAB node, the base station can obtain the reporting information including the identifier of the IAB node via the NR Uu link between the first IAB node and the second IAB node, the NR Uu link between the second IAB node and the third IAB node, the NR Uu link between the third IAB node and the fourth IAB node, and the NR Uu link between the fourth IAB node and the host base station. If the IAB node corresponding to the target UE is the third IAB node, the base station can obtain the reporting information including the identifier of the IAB node via the NR Uu link between the third IAB node and the fourth IAB node, and the NR Uu link between the fourth IAB node and the host base station.

[0132] In some embodiments, in addition to the identifier of the IAB node establishing a connection with the target UE, the base station may also obtain the identifier of the base station corresponding to the target UE and / or the identifier of the cell corresponding to the target UE and include them in the reporting information.

[0133] S802, transmit the reported information to the AMF network element so that the AMF network element determines the UE location information based on the reported information.

[0134] After obtaining the reporting information including the identifier of the IAB node that establishes a connection with the target UE, the base station transmits the reporting information to the AMF network element, so that the AMF network element can determine the location information of the target UE based on the reporting information. Since the reporting information includes the identifier of the IAB node that establishes a connection with the target UE, and as mentioned above, the IAB node is deployed at a fixed location, the identifier of the IAB node can be mapped to a fixed area of ​​the core network, and thus, the location information of the target UE can be determined based on the identifier of the IAB node.

[0135] In an embodiment of the present disclosure, by acquiring the reporting information including the identifier of the IAB node corresponding to the target UE (UE to be located), the reporting information is transmitted to the AMF network element, so that the AMF network element can determine the location information of the UE according to the identifier of the IAB node, thereby avoiding the problem that when the existing location reporting process is used to locate the UE, the reported UE location information, such as the identifier information of the cell to which the UE belongs, cannot fully represent the current location of the UE. And by using the NR Uu link between each IAB node, the corresponding information can be reliably obtained from the IAB node corresponding to the target UE using the wireless backhaul link.

[0136] In some embodiments, in order to avoid security issues caused by accessing the network via an unauthorized IAB node, the base station may determine whether the IAB node corresponding to the target UE is an authorized IAB node. When it is determined that the IAB node corresponding to the target UE is an authorized IAB node, the reporting information including the identifier of the IAB node connected to the target UE is transmitted to the AMF network element, so that the AMF network element can determine the location information of the target UE based on the reporting information. When it is determined that the IAB node corresponding to the target UE is not an authorized IAB node, the base station may not transmit the reporting information, thereby avoiding security issues caused by positioning or data transmission of the UE accessing the network via an unauthorized IAB node.

[0137] Fig. 9 A flow chart of a UE positioning method based on IAB according to an embodiment of the present disclosure is shown, wherein the IAB node is deployed at a fixed position. When the IAB node is located at a fixed position, the coverage range of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the following method can be used to implement UE positioning. In this embodiment, the method is executed by the NEF network element, such as Fig. 9As shown, the UE positioning method based on IAB includes the following steps:

[0138] S901, in response to a positioning service request for the UE, obtain reporting information about the UE from the AMF network element, where the reporting information includes an identifier of the IAB node corresponding to the UE.

[0139] When the NEF network element receives a positioning service request for the target UE, for example, from an application function (AF, ApplicationFunction), the NEF network element may obtain reporting information about the target UE from the AMF network element, wherein the reporting information includes an identifier of an IAB node corresponding to the target UE. "IAB node corresponding to the UE" may refer to an IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0140] In some embodiments, in response to a positioning service request for a target UE, the NEF network element may send the positioning service request to the AMF network element, and the AMF network element may trigger a location reporting process in response to the request. In the location reporting process, the base station may report the identifier of the IAB node that establishes a connection with the target UE to the AMF network element, and the AMF network element transmits the identifier of the IAB node to the NEF network element. Specifically, for example, after receiving the positioning service request for the target UE from the NEF network element, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station, in response to the location reporting request, transmits reporting information including the identifier of the IAB node that establishes a connection with the target UE to the AMF network element, and the AMF network element transmits the received reporting information to the NEF network element.

[0141] S902: Determine the location information of the UE according to the reported information.

[0142] After obtaining the reported information, the NEF network element can determine the location information of the target UE according to the reported information. Since the reported information received by the NEF network element includes the identifier of the IAB node that establishes a connection with the target UE, and as mentioned above, the IAB node is deployed at a fixed location, the identifier of the IAB node can be mapped to a fixed area of ​​the core network, and thus, the location information of the target UE can be determined according to the identifier of the IAB node.

[0143] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the location information of the UE is determined based on the reporting information, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0144] Fig.10 The flowchart of a UE positioning method based on IAB according to an embodiment of the present disclosure is shown in the figure, wherein the IAB node is deployed at a fixed position, and the coverage range of the IAB node is a fixed area, so its identity can be mapped to a fixed area of ​​the core network. When the UE to be positioned, that is, the target UE, is a UE that accesses the network through an IAB node at a fixed position, the method shown below can be used to achieve UE positioning. In this embodiment, the method is executed by the NEF network element, such as Fig.10 As shown, the UE positioning method based on IAB includes the following steps:

[0145] S1001, in response to a positioning service request for a UE, obtain reporting information about the UE from an AMF network element, where the reporting information includes an identifier of an IAB node corresponding to the UE.

[0146] When the NEF network element receives a positioning service request for the target UE, for example, from an application function (AF, ApplicationFunction), the NEF network element may obtain reporting information about the target UE from the AMF network element, wherein the reporting information includes an identifier of an IAB node corresponding to the target UE. "IAB node corresponding to the UE" may refer to an IAB node that establishes a connection with the UE, for example, the UE accesses the network via the IAB node.

[0147] In some embodiments, in response to a positioning service request for a target UE, the NEF network element may send the positioning service request to the AMF network element, and the AMF network element may trigger a location reporting process in response to the request. In the location reporting process, the base station may report the identifier of the IAB node that establishes a connection with the target UE to the AMF network element, and the AMF network element transmits the identifier of the IAB node to the NEF network element. Specifically, for example, after receiving the positioning service request for the target UE from the NEF network element, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the target UE, and the base station, in response to the location reporting request, transmits reporting information including the identifier of the IAB node that establishes a connection with the target UE to the AMF network element, and the AMF network element transmits the received reporting information to the NEF network element.

[0148] In some embodiments, in addition to the identifier of the IAB node establishing a connection with the target UE, the identifier of the base station corresponding to the target UE and the identifier of the cell corresponding to the target UE may also be reported to the NEF network element.

[0149] S1002: Determine the coverage of the IAB node according to the preset configuration list and the identifier of the IAB node included in the reported information, wherein the preset configuration list stores a correspondence between the identifier of the IAB node and its coverage.

[0150] After acquiring the reported information, the NEF network element can determine the location information of the target UE according to the reported information.

[0151] Specifically, since the coverage of an IAB node located at a fixed position is a fixed area, a configuration list can be pre-specified, in which the coverage of each IAB node located at a fixed position is specified. For example, the correspondence between the identifier of the IAB node located at a fixed position and its coverage can be stored in the configuration list.

[0152] The configuration list can be configured in the AMF network element, or can be configured in the NEF network element, or can be configured in both the AMF network element and the NEF network element.

[0153] In this embodiment, the configuration list is configured in the NEF network element or has been obtained by the NEF network element from the AMF network element. After the NEF network element receives the reporting information including the identifier of the IAB node connected to the target UE, the NEF network element can obtain the coverage of the IAB node connected to the target UE according to the configuration list, for example, by querying the configuration list and obtaining the coverage of the IAB node according to the identifier of the IAB node.

[0154] S1003: Determine the location information of the UE according to the coverage of the IAB node, the identifier of the base station corresponding to the UE, and the identifier of the serving cell corresponding to the UE.

[0155] After determining the coverage of the IAB node that establishes a connection with the target UE, the location information of the UE can be determined based on the coverage, the identifier of the base station corresponding to the UE, and the identifier of the serving cell corresponding to the UE. Figure 1 As shown, after determining the coverage of the IAB node IAB node2 that establishes a connection with the UE, it can be determined that the UE is within the coverage of IAB node2, and then the specific location information of the UE can be determined based on the identifier of the base station corresponding to the UE and the identifier of the service cell corresponding to the UE.

[0156] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the coverage of the IAB node is determined according to the reporting information, and the location information of the UE is determined based on the coverage of the IAB node, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0157] Fig.11 A flow chart of a UE positioning method based on IAB according to an embodiment of the present disclosure is shown, wherein the IAB node is deployed on a movable object. When the UE to be positioned, i.e., the target UE, is a UE that accesses the network through the IAB node on the movable object (also referred to as a movable IAB node), the following method can be used to implement UE positioning. In this embodiment, the method is executed by an AMF network element, such as Fig.11 As shown, the UE positioning method based on IAB includes the following steps:

[0158] S1101, in response to a positioning service request for the UE, obtaining the UE's contract information and the identifier of the mobile IAB node corresponding to the UE from the UDM platform, wherein the UDM platform stores the correspondence between the UE and the identifier of the mobile IAB node and the contract information of the UE, wherein the contract information indicates whether the UE is a service user of the mobile IAB node.

[0159] When the target UE accesses the network via the IAB node on the movable object, since the IAB node is located on the movable object, the coverage of the IAB node is not fixed, that is, it changes with the movement of the movable object. In this case, positioning the UE requires real-time tracking of the UE, which may cause a complicated communication process. At the same time, the communication operations of the UE during the positioning process will cause the UE to consume more power.

[0160] However, when the IAB node is located on a movable object, the UE accessing the network through the IAB node is usually also located on the movable object, so the location information of the movable IAB node can be regarded as the location information of the UE accessing the network through it.

[0161] When the AMF network element receives a positioning service request for the target UE, for example, the positioning service request is received from the application function (AF, Application Function) via the NEF network element, the AMF network element can obtain the identifier of the mobile IAB node corresponding to the target UE from the UDM platform. "The mobile IAB node corresponding to the UE" may refer to the mobile IAB node that establishes a connection with the UE, for example, the UE accesses the network via the mobile IAB node. The UDM platform stores the correspondence between the identifiers of the UE and the mobile IAB node and the contract information of the UE. The contract information of the UE may indicate whether the UE is a service user of the mobile IAB node.

[0162] In some embodiments, when the UE registers to the network via a mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node may be stored on the UDM platform according to the identifiers of the UE and the mobile IAB node. For example, when the UE expects to register to the network via a mobile IAB node, the UE may provide the identifier of the mobile IAB node, and when the network is successfully registered via the mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node may be stored on the UDM platform.

[0163] In some embodiments, the contract information of the UE may be pre-stored on the UDM platform. For example, when the UE is authorized to become a service user of a mobile IAB node through relevant services, the contract information indicating that the UE is a service user of the mobile IAB node may be stored on the UDM platform. In other embodiments, the contract information of the UE may be written to the UDP platform when the UE registers to the network via a mobile IAB node. For example, when the UE registers to the network via a mobile IAB node, the contract information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform based on the indication information provided by the UE indicating that it is a service user of the mobile IAB node. Of course, other methods may also be used to store the contract information of the UE on the UDM platform, which will not be repeated here.

[0164] S1102: When the subscription information indicates that the UE is a service user of a mobile IAB node, based on an identifier of the IAB node, obtain location information of the IAB node from a base station.

[0165] After the AMF network element obtains the subscription information indicating that the UE is a service user of a mobile IAB node and obtains the identifier of the IAB node, the AMF network element can obtain the location information about the IAB node from the base station.

[0166] In some embodiments, the AMF network element may trigger a location reporting process based on the identifier of the IAB node corresponding to the target UE, and in the location reporting process, the base station may report the location information of the IAB node to the AMF network element. Specifically, for example, after obtaining the identifier of the IAB node, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the IAB node, and the base station transmits the location information of the IAB node to the AMF network element in response to the location reporting request.

[0167] In some embodiments, the location information of the IAB node that establishes a connection with the target UE includes an identifier of a base station corresponding to the IAB node and an identifier of a cell corresponding to the IAB node.

[0168] S1103: Determine the location information of the UE based on the location information of the IAB node.

[0169] After acquiring the location information of the IAB node corresponding to the target UE, the AMF network element can determine the location information of the target UE based on the location information of the IAB node.

[0170] In an embodiment of the present disclosure, the identifier of the IAB node corresponding to the target UE can be obtained from the UDM platform, and the location information of the IAB node can be obtained based on the identifier of the IAB node as the location information of the target UE, thereby avoiding the complex communication process required for tracking the UE located on a movable object and avoiding the power consumption of the UE in the complex communication process, simplifying the UE positioning process and saving the power consumption of the UE.

[0171] Fig.12 A flow chart of a UE positioning method based on IAB according to an embodiment of the present disclosure is shown, wherein the IAB node is deployed on a movable object. When the UE to be positioned, i.e., the target UE, is a UE that accesses the network through the IAB node on the movable object (also referred to as a movable IAB node), the following method can be used to implement UE positioning. In this embodiment, the method is executed by the GMLC, such as Fig.12 As shown, the UE positioning method based on IAB includes the following steps:

[0172] S1201, in response to a positioning service request for the UE, obtaining the UE's contract information and the identifier of the mobile IAB node corresponding to the UE from the UDM platform, wherein the UDM platform stores the correspondence between the UE and the identifier of the mobile IAB node and the contract information of the UE, wherein the contract information indicates whether the UE is a service user of the mobile IAB node.

[0173] When the target UE accesses the network via the IAB node on the movable object, since the IAB node is located on the movable object, the coverage of the IAB node is not fixed, that is, it changes with the movement of the movable object. In this case, positioning the UE requires real-time tracking of the UE, which may cause a complicated communication process. At the same time, the communication operations of the UE during the positioning process will cause the UE to consume more power.

[0174] However, when the IAB node is located on a movable object, the UE accessing the network through the IAB node is usually also located on the movable object, so the location information of the movable IAB node can be regarded as the location information of the UE accessing the network through it.

[0175] When the GMLC receives a positioning service request for a target UE, for example, the positioning service request is received from an application function (AF) via an NEF network element, the GMLC may obtain the identifier of the mobile IAB node corresponding to the target UE from the UDM platform. "The mobile IAB node corresponding to the UE" may refer to a mobile IAB node that establishes a connection with the UE, for example, the UE accesses the network via the mobile IAB node. The UDM platform stores the correspondence between the identifiers of the UE and the mobile IAB node and the contract information of the UE. The contract information of the UE may indicate whether the UE is a service user of the mobile IAB node.

[0176] In some embodiments, when the UE registers to the network via a mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node may be stored on the UDM platform according to the identifiers of the UE and the mobile IAB node. For example, when the UE expects to register to the network via a mobile IAB node, the UE may provide the identifier of the mobile IAB node, and when the network is successfully registered via the mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node may be stored on the UDM platform.

[0177] In some embodiments, the contract information of the UE may be pre-stored on the UDM platform. For example, when the UE is authorized to become a service user of a mobile IAB node through relevant services, the contract information indicating that the UE is a service user of the mobile IAB node may be stored on the UDM platform. In other embodiments, the contract information of the UE may be written to the UDP platform when the UE registers to the network via a mobile IAB node. For example, when the UE registers to the network via a mobile IAB node, the contract information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform based on the indication information provided by the UE indicating that it is a service user of the mobile IAB node. Of course, other methods may also be used to store the contract information of the UE on the UDM platform, which will not be repeated here.

[0178] S1202: When the subscription information indicates that the UE is a service user of a mobile IAB node, based on the identifier of the IAB node, the location information of the IAB node is obtained via a positioning management function LMF network element.

[0179] After the GMLC obtains the subscription information indicating that the UE is a service user of a mobile IAB node and obtains the identifier of the IAB node, the GMLC can obtain the location information about the IAB node via the LMF network element.

[0180] In some embodiments, the GMLC may trigger a location reporting process based on the identifier of the IAB node corresponding to the target UE, and in the location reporting process, the base station may report the location information of the IAB node to the GMLC. Specifically, for example, after obtaining the identifier of the IAB node, the GMLC may send a location reporting request to the LMF network element via the AMF network element to request the LMF network element to report the location information of the IAB node. The LMF network element obtains the precise location of the IAB node based on the information reported by the base station and the UE, for example, obtains the graphical geographic location information of the IAB node, and reports it to the GMLC.

[0181] In some embodiments, the location information of the IAB node that establishes a connection with the target UE includes graphical geographical location information of the IAB node.

[0182] S1203: Determine the location information of the UE based on the location information of the IAB node.

[0183] After acquiring the location information of the IAB node corresponding to the target UE, the GMLC can determine the location information of the IAB node as the location information of the target UE. Specifically, the GMLC can determine the specific location information of the target UE according to the graphical geographical location information of the IAB node.

[0184] In an embodiment of the present disclosure, the identifier of the IAB node corresponding to the target UE can be obtained from the UDM platform, and the location information of the IAB node can be obtained based on the identifier of the IAB node as the location information of the target UE, thereby avoiding the complex communication process required for tracking the UE located on a movable object and avoiding the power consumption of the UE in the complex communication process, simplifying the UE positioning process and saving the power consumption of the UE.

[0185] Fig.13 A flow chart of a UE positioning method based on IAB according to an embodiment of the present disclosure is shown, wherein the IAB node is deployed on a movable object. When the UE to be positioned, i.e., the target UE, is a UE that accesses the network through the IAB node on the movable object (also referred to as a movable IAB node), the following method can be used to implement UE positioning. In this embodiment, the method is executed by the NEF network element, such as Fig.13 As shown, the UE positioning method based on IAB includes the following steps:

[0186] S1301, in response to a positioning service request for the UE, obtaining the UE's contract information and the identifier of the mobile IAB node corresponding to the UE from the UDM platform, wherein the UDM platform stores the correspondence between the UE and the identifier of the mobile IAB node and the contract information of the UE, wherein the contract information indicates whether the UE is a service user of the mobile IAB node.

[0187] When the target UE accesses the network via the IAB node on the movable object, since the IAB node is located on the movable object, the coverage of the IAB node is not fixed, that is, it changes with the movement of the movable object. In this case, positioning the UE requires real-time tracking of the UE, which may cause a complicated communication process. At the same time, the communication operations of the UE during the positioning process will cause the UE to consume more power.

[0188] However, when the IAB node is located on a movable object, the UE accessing the network through the IAB node is usually also located on the movable object, so the location information of the movable IAB node can be regarded as the location information of the UE accessing the network through it.

[0189] When the NEF network element receives a positioning service request for a target UE, for example, from an application function (AF, Application Function), the NEF network element may obtain the identifier of the mobile IAB node corresponding to the target UE from the UDM platform. "The mobile IAB node corresponding to the UE" may refer to a mobile IAB node that establishes a connection with the UE, for example, the UE accesses the network via the mobile IAB node. The UDM platform stores the correspondence between the identifiers of the UE and the mobile IAB node and the contract information of the UE. The contract information of the UE may indicate whether the UE is a service user of the mobile IAB node.

[0190] In some embodiments, when the UE registers to the network via a mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node may be stored on the UDM platform according to the identifiers of the UE and the mobile IAB node. For example, when the UE expects to register to the network via a mobile IAB node, the UE may provide the identifier of the mobile IAB node, and when the network is successfully registered via the mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node may be stored on the UDM platform.

[0191] In some embodiments, the contract information of the UE may be pre-stored on the UDM platform. For example, when the UE is authorized to become a service user of a mobile IAB node through relevant services, the contract information indicating that the UE is a service user of the mobile IAB node may be stored on the UDM platform. In other embodiments, the contract information of the UE may be written to the UDP platform when the UE registers to the network via a mobile IAB node. For example, when the UE registers to the network via a mobile IAB node, the contract information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform based on the indication information provided by the UE indicating that it is a service user of the mobile IAB node. Of course, other methods may also be used to store the contract information of the UE on the UDM platform, which will not be repeated here.

[0192] S1302: When the subscription information indicates that the UE is a service user of a mobile IAB node, the location information of the IAB node is obtained from the AMF network element or the GMLC based on the identifier of the IAB node.

[0193] After the NEF network element obtains the subscription information indicating that the UE is a service user of a mobile IAB node and obtains the identifier of the IAB node, the NEF network element can obtain the location information about the IAB node from the AMF network element or the GMLC.

[0194] In some embodiments, after acquiring the identifier of the IAB node, the NEF network element may send the identifier of the IAB node to the AMF network element or GMLC, so that the AMF network element or GMLC can trigger a location reporting process based on the identifier of the IAB node corresponding to the target UE. In the location reporting process, the base station can report the location information of the IAB node to the AMF network element or GMLC, and the AMF network element or GMLC transmits the received location information to the NEF network element. Specifically, for example, after acquiring the identifier of the IAB node, the AMF network element may send a location reporting request to the base station to request the base station to report the location information of the IAB node, and the base station, in response to the location reporting request, transmits the location information of the IAB node (e.g., the identifier of the base station corresponding to the IAB node and / or the identifier of the cell corresponding to the IAB node) to the AMF network element, and the AMF network element transmits the received location information of the IAB node to the NEF network element. Alternatively, after obtaining the identifier of the IAB node, the GMLC can send a location reporting request to the LMF network element via the AMF network element to request the LMF network element to report the location information of the IAB node. The LMF network element obtains the precise location of the IAB node based on the information reported by the base station and the UE, such as obtaining the graphical geographic location information of the IAB node, and reports it to the GMLC, and the GMLC transmits the received location information of the IAB node to the NEF network element.

[0195] In some embodiments, the location information of the IAB node establishing a connection with the target UE includes an identifier of a base station corresponding to the IAB node, graphical geographical location information of the IAB node, and an identifier of a cell corresponding to the IAB node.

[0196] S1303: Determine the location information of the UE based on the location information of the IAB node.

[0197] After acquiring the location information of the IAB node corresponding to the target UE, the NEF network element may determine the location information of the IAB node as the location information of the target UE.

[0198] In an embodiment of the present disclosure, the identifier of the IAB node corresponding to the target UE can be obtained from the UDM platform, and the location information of the IAB node can be obtained based on the identifier of the IAB node as the location information of the target UE, thereby avoiding the complex communication process required for tracking the UE located on a movable object and avoiding the power consumption of the UE in the complex communication process, simplifying the UE positioning process and saving the power consumption of the UE.

[0199] Corresponding to the IAB-based UE positioning method provided in the above-mentioned embodiments, the present disclosure also provides an IAB-based UE positioning device. Since the IAB-based UE positioning device provided in the embodiment of the present disclosure corresponds to the IAB-based UE positioning method provided in the above-mentioned embodiments, the implementation method of the IAB-based UE positioning method is also applicable to the IAB-based UE positioning device provided in this embodiment, and will not be described in detail in this embodiment. Figure 14-16 It is a structural diagram of the UE positioning device based on IAB proposed in the present disclosure.

[0200] Fig.14 A schematic diagram of the structure of a UE positioning device based on IAB provided in an embodiment of the present disclosure. The IAB node is deployed at a fixed position, and the device is applied to the AMF network element.

[0201] like Fig.14 As shown, the UE positioning device 1400 based on IAB includes:

[0202] The acquisition module 1401 is configured to acquire, in response to a positioning service request for the UE, reporting information about the UE from a base station, where the reporting information includes an identifier of an IAB node corresponding to the UE; and

[0203] The determination module 1402 is configured to determine the location information of the UE according to the reported information.

[0204] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the location information of the UE is determined based on the reporting information, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0205] In the embodiments of the present disclosure, Fig.15 As shown, the determination module 1402 includes:

[0206] The first determining submodule 14021 is configured to determine the coverage of the IAB node according to a preset configuration list and the identifier of the IAB node included in the reported information, wherein the preset configuration list stores a correspondence between the identifier of the IAB node and its coverage; and

[0207] The second determining submodule 14022 is configured to determine the location information of the UE according to the coverage of the IAB node.

[0208] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the coverage of the IAB node is determined according to the reporting information, and the location information of the UE is determined based on the coverage of the IAB node, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0209] In some embodiments, in addition to the identifier of the IAB node that establishes a connection with the target UE, the reported information also includes the identifier of the base station corresponding to the target UE and / or the identifier of the cell corresponding to the target UE.

[0210] In the embodiments of the present disclosure, Fig.16 As shown, the determination module 1402 includes:

[0211] The sending submodule 14023 is configured to transmit the reported information to the network open function NEF network element, so that the NEF network element determines the location information of the UE based on at least one of the identifier of the IAB node included in the reported information, the identifier of the base station corresponding to the UE, and the identifier of the service cell corresponding to the UE.

[0212] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the reporting information is sent to the NEF network element, so that the NEF network element can determine the location information of the UE based on the reporting information, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0213] Corresponding to the IAB-based UE positioning method provided in the above-mentioned embodiments, the present disclosure also provides an IAB-based UE positioning device. Since the IAB-based UE positioning device provided in the embodiment of the present disclosure corresponds to the IAB-based UE positioning method provided in the above-mentioned embodiments, the implementation method of the IAB-based UE positioning method is also applicable to the IAB-based UE positioning device provided in this embodiment, and will not be described in detail in this embodiment. Figure 17-Figure 18 It is a structural diagram of the UE positioning device based on IAB proposed in the present disclosure.

[0214] Fig.17 The present invention provides a schematic diagram of the structure of a UE positioning device based on IAB provided in an embodiment of the present invention. The IAB node is deployed at a fixed position, and the device is applied to a base station.

[0215] like Fig.17As shown, the UE positioning device 1700 based on IAB includes:

[0216] The acquisition module 1701 is configured to acquire reporting information in response to a location information reporting request for the UE, where the reporting information includes an identifier of an IAB node corresponding to the UE; and

[0217] The sending module 1702 is configured to transmit the reported information to the access and mobility management function AMF network element, so that the AMF network element or NEF network element determines the location information of the UE based on the reported information.

[0218] In an embodiment of the present disclosure, by obtaining reporting information including the identifier of the IAB node corresponding to the target UE (UE to be located), the reporting information is transmitted to the AMF network element, so that the AMF network element or the NEF network element can determine the location information of the UE based on the identifier of the IAB node, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identifier information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0219] In the embodiments of the present disclosure, Fig.18 As shown, the sending module 1702 includes:

[0220] The determination submodule 17021 is configured to determine whether the IAB node corresponding to the UE is an authorized IAB node; and

[0221] The sending submodule 17022 is configured to transmit the reporting information including the identifier of the IAB node to the access and mobility management function AMF network element when the IAB node corresponding to the UE is an authorized IAB node.

[0222] In an embodiment of the present disclosure, by acquiring reporting information including the identifier of the IAB node corresponding to the target UE (UE to be located) and transmitting the reporting information to the AMF network element when it is determined that the IAB node corresponding to the target UE is an authorized IAB node, the AMF network element can determine the location information of the UE according to the identifier of the IAB node, thereby avoiding the problem that when the existing location reporting process is used to locate the UE, the reported UE location information, such as the identifier information of the cell to which the UE belongs, cannot accurately represent the current location of the UE. In addition, when it is determined that the IAB node corresponding to the target UE is not an authorized IAB node, the reporting information is not transmitted, thereby avoiding security issues caused by positioning or data transmission of UEs that access the network via unauthorized IAB nodes.

[0223] In some embodiments, the acquisition module 1701 is configured to acquire the reported information via an F1 interface between the base station and the IAB node or according to local configuration information, wherein the local configuration information indicates a correspondence between the IAB node and the F1 interface. The corresponding information can be directly acquired from the IAB node corresponding to the target UE via the F1 interface between the base station and the IAB node or according to the local configuration information.

[0224] In some embodiments, the acquisition module 1701 is configured to acquire the reported information via the NR Uu link between each IAB node. By using the NR Uu link between each IAB node, the corresponding information can be reliably acquired from the IAB node corresponding to the target UE using the wireless backhaul link.

[0225] In some embodiments, in addition to the identifier of the IAB node that establishes a connection with the target UE, the reported information also includes the identifier of the base station corresponding to the target UE and the identifier of the cell corresponding to the target UE.

[0226] Corresponding to the IAB-based UE positioning method provided in the above-mentioned embodiments, the present disclosure also provides an IAB-based UE positioning device. Since the IAB-based UE positioning device provided in the embodiment of the present disclosure corresponds to the IAB-based UE positioning method provided in the above-mentioned embodiments, the implementation method of the IAB-based UE positioning method is also applicable to the IAB-based UE positioning device provided in this embodiment, and will not be described in detail in this embodiment. Figure 19-20 It is a structural diagram of the UE positioning device based on IAB proposed in the present disclosure.

[0227] Fig.19 The present invention provides a schematic diagram of the structure of a UE positioning device based on IAB according to an embodiment of the present invention. The IAB node is deployed at a fixed position, and the device is applied to a NEF network element.

[0228] like Fig.19 As shown, the UE positioning device 1900 based on IAB includes:

[0229] The acquisition module 1901 is configured to obtain, in response to a positioning service request for the UE, reporting information about the UE from a mobility management function AMF network element, where the reporting information includes an identifier of an IAB node corresponding to the UE; and

[0230] The determination module 1902 is configured to determine the location information of the UE according to the reported information.

[0231] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the location information of the UE is determined based on the reporting information, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0232] In the embodiment of the present disclosure, in addition to the identifier of the IAB node that establishes a connection with the target UE, the reported information also includes the identifier of the base station corresponding to the target UE and the identifier of the cell corresponding to the target UE, such as Fig. 20 As shown, the sending module 1902 includes:

[0233] The first determining submodule 19021 is configured to determine the coverage of the IAB node according to a preset configuration list and the identifier of the IAB node included in the reported information, wherein the preset configuration list stores a correspondence between the identifier of the IAB node and its coverage; and

[0234] The second determining submodule 19022 is configured to determine the location information of the UE according to the coverage of the IAB node, the identifier of the base station corresponding to the UE, and the identifier of the serving cell corresponding to the UE.

[0235] In an embodiment of the present disclosure, by obtaining reporting information including the identification of the IAB node corresponding to the target UE (UE to be located), the coverage of the IAB node is determined according to the reporting information, and the location information of the UE is determined based on the coverage of the IAB node, thereby avoiding the problem that when using the existing location reporting process to locate the UE, the reported UE location information, such as the identification information of the cell to which the UE belongs, cannot accurately represent the current location of the UE.

[0236] Corresponding to the IAB-based UE positioning method provided in the above-mentioned embodiments, the present disclosure also provides an IAB-based UE positioning device. Since the IAB-based UE positioning device provided in the embodiment of the present disclosure corresponds to the IAB-based UE positioning method provided in the above-mentioned embodiments, the implementation method of the IAB-based UE positioning method is also applicable to the IAB-based UE positioning device provided in this embodiment, and will not be described in detail in this embodiment. Fig.21 It is a structural diagram of the UE positioning device based on IAB proposed in the present disclosure.

[0237] Fig.21 A schematic diagram of the structure of a UE positioning device based on IAB provided in an embodiment of the present disclosure. The IAB node is deployed on a movable object, and the device is applied to an AMF network element.

[0238] like Fig.21 As shown, the UE positioning device 2100 based on IAB includes:

[0239] The first acquisition module 2101 is configured to, in response to a location service request for the UE, acquire the subscription information of the UE and the identifier of the mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node;

[0240] The second acquisition module 2102 is configured to acquire the location information of the mobile IAB node from the base station based on the identifier of the mobile IAB node when the subscription information of the UE indicates that the UE is a service user of the mobile IAB node; and

[0241] The determination module 2103 is configured to determine the location information of the UE according to the location information of the mobile IAB node.

[0242] In some embodiments, when the UE registers with the network via a deployed mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node may be stored on the UDM platform according to the identifiers of the UE and the mobile IAB node.

[0243] In some embodiments, when the UE registers to the network via the mobile IAB node, according to the indication information provided by the UE indicating that it is a service user of the mobile IAB node, the subscription information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform.

[0244] In some embodiments, the location information of the mobile IAB node corresponding to the target UE includes an identifier of a base station corresponding to the mobile IAB node and an identifier of a cell corresponding to the mobile IAB node.

[0245] In an embodiment of the present disclosure, the identifier of the mobile IAB node corresponding to the target UE can be obtained from the UDM platform, and the location information of the mobile IAB node can be obtained based on the identifier of the mobile IAB node to serve as the location information of the target UE, thereby avoiding the complex communication process required for tracking the UE located on the movable object and avoiding the power consumption of the UE in the complex communication process, simplifying the UE positioning process and saving the power consumption of the UE.

[0246] Corresponding to the IAB-based UE positioning method provided in the above-mentioned embodiments, the present disclosure also provides an IAB-based UE positioning device. Since the IAB-based UE positioning device provided in the embodiment of the present disclosure corresponds to the IAB-based UE positioning method provided in the above-mentioned embodiments, the implementation method of the IAB-based UE positioning method is also applicable to the IAB-based UE positioning device provided in this embodiment, and will not be described in detail in this embodiment. Fig. 22 It is a structural diagram of the UE positioning device based on IAB proposed in the present disclosure.

[0247] Fig. 22 A schematic diagram of the structure of a UE positioning device based on IAB provided in an embodiment of the present disclosure. An IAB node is deployed on a movable object, and the device is applied to GMLC.

[0248] like Fig. 22 As shown, the UE positioning device 2200 based on IAB includes:

[0249] The first acquisition module 2201 is configured to, in response to a positioning service request for the UE, acquire the subscription information of the UE and the identifier of the mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node;

[0250] The second acquisition module 2202 is configured to acquire the location information of the mobile IAB node from the base station via the positioning management function LMF network element based on the identifier of the mobile IAB node when the subscription information of the UE indicates that the UE is a service user of the mobile IAB node; and

[0251] The determination module 2203 is configured to determine the location information of the UE according to the location information of the mobile IAB node.

[0252] In some embodiments, when the UE registers to the network via the mobile IAB node, the correspondence between the UE and the identifier of the mobile IAB node may be stored on the UDM platform according to the identifiers of the UE and the mobile IAB node.

[0253] In some embodiments, when the UE registers to the network via the mobile IAB node, according to the indication information provided by the UE indicating that it is a service user of the mobile IAB node, the subscription information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform.

[0254] In some embodiments, the location information of the mobile IAB node corresponding to the target UE includes an identifier of a base station corresponding to the mobile IAB node and an identifier of a cell corresponding to the IAB node.

[0255] In an embodiment of the present disclosure, the identifier of the mobile IAB node corresponding to the target UE can be obtained from the UDM platform, and the location information of the mobile IAB node can be obtained based on the identifier of the mobile IAB node to serve as the location information of the target UE, thereby avoiding the complex communication process required for tracking the UE located on the movable object and avoiding the power consumption of the UE in the complex communication process, simplifying the UE positioning process and saving the power consumption of the UE.

[0256] Corresponding to the IAB-based UE positioning method provided in the above-mentioned embodiments, the present disclosure also provides an IAB-based UE positioning device. Since the IAB-based UE positioning device provided in the embodiment of the present disclosure corresponds to the IAB-based UE positioning method provided in the above-mentioned embodiments, the implementation method of the IAB-based UE positioning method is also applicable to the IAB-based UE positioning device provided in this embodiment, and will not be described in detail in this embodiment. Fig.23 It is a structural diagram of the UE positioning device based on IAB proposed in the present disclosure.

[0257] Fig.23 The present invention provides a schematic diagram of the structure of a UE positioning device based on IAB provided in an embodiment of the present invention. The IAB node is deployed on a movable object, and the device is applied to a NEF network element.

[0258] like Fig.23 As shown, the UE positioning device 2300 based on IAB includes:

[0259] The first acquisition module 2301 is configured to, in response to a positioning service request for the UE, acquire the subscription information of the UE and the identifier of the mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node;

[0260] The second acquisition module 2302 is configured to acquire the location information of the mobile IAB node from a mobility management function AMF network element or a gateway mobile location center GMLC based on the identifier of the mobile IAB node when the subscription information of the UE indicates that the UE is a service user of the mobile IAB node; and

[0261] The determination module 2303 is configured to determine the location information of the UE according to the location information of the mobile IAB node.

[0262] In some embodiments, when the UE registers to the network via the mobile IAB node, the correspondence between the UE and the identifier of the mobile IAB node may be stored on the UDM platform according to the identifiers of the UE and the mobile IAB node.

[0263] In some embodiments, when the UE registers to the network via the mobile IAB node, according to the indication information provided by the UE indicating that it is a service user of the mobile IAB node, the subscription information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform.

[0264] In some embodiments, the location information of the mobile IAB node corresponding to the target UE includes an identifier of a base station corresponding to the mobile IAB node and an identifier of a cell corresponding to the mobile IAB node.

[0265] In an embodiment of the present disclosure, the identifier of the mobile IAB node corresponding to the target UE can be obtained from the UDM platform, and the location information of the mobile IAB node can be obtained based on the identifier of the mobile IAB node to serve as the location information of the target UE, thereby avoiding the complex communication process required for tracking the UE located on the movable object and avoiding the power consumption of the UE in the complex communication process, simplifying the UE positioning process and saving the power consumption of the UE.

[0266] According to an embodiment of the present disclosure, the present disclosure also provides a communication device and a computer-readable storage medium.

[0267] like Fig.24 , is a block diagram of a communication device according to an embodiment of the present disclosure. The communication device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The communication device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0268] like Fig.24As shown, the communication device includes: one or more processors 2410, memory 2420, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are interconnected using different buses and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the communication device, including instructions stored in or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In other embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple communication devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Fig.24 A processor 2410 is taken as an example.

[0269] The memory 2420 is a non-transitory computer-readable storage medium provided by the present disclosure. The memory stores instructions executable by at least one processor to enable the at least one processor to perform the data transmission method provided by the present disclosure. The non-transitory computer-readable storage medium of the present disclosure stores computer instructions, which are used to enable a computer to perform the data transmission method provided by the present disclosure.

[0270] The memory 2420, as a non-transient computer-readable storage medium, can be used to store non-transient software programs, non-transient computer executable programs and modules, such as program instructions / modules corresponding to the data transmission method in the embodiment of the present disclosure. The processor 2010 executes various functional applications and data processing of the server by running the non-transient software programs, instructions and modules stored in the memory 2420, that is, implements the data transmission method in the above method embodiment.

[0271] The memory 2420 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the positioning communication device, etc. In addition, the memory 2420 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. Optionally, the memory 2420 may optionally include a memory remotely arranged relative to the processor 2410, and these remote memories may be connected to the positioning communication device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0272] The communication device may further include: an input device 2430 and an output device 2440. The processor 2410, the memory 2420, the input device 2430 and the output device 2440 may be connected via a bus or other means. Fig.24 The example of connecting through bus is taken in the following.

[0273] The input device 2430 can receive input digital or character information, and generate key signal input related to user settings and function control of the positioning communication device, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, an indicator rod, one or more mouse buttons, a trackball, a joystick, and other input devices. The output device 2040 may include a display device, an auxiliary lighting device (e.g., an LED), and a tactile feedback device (e.g., a vibration motor). The display device may include, but is not limited to, a liquid crystal display (LCD), a light emitting diode (LED) display, and a plasma display. In some embodiments, the display device may be a touch screen.

[0274] Various implementations of the systems and techniques described herein can be realized in digital electronic circuit systems, integrated circuit systems, dedicated ASICs (application specific integrated circuits), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0275] These computer programs (also referred to as programs, software, software applications, or code) include machine instructions for programmable processors and can be implemented using high-level procedural and / or object-oriented programming languages, and / or assembly / machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or means (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0276] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0277] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0278] A computer system may include clients and servers. Clients and servers are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

[0279] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0280] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A positioning method for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The method is applied to an access and mobility management function AMF network element, wherein the user equipment UE accesses a base station through an IAB node at a fixed location, and the method comprises: In response to a positioning service request for the UE, acquiring, from a base station, reporting information including an identifier of an IAB node corresponding to the UE, wherein the IAB node corresponding to the UE refers to an IAB node that establishes a connection with the UE; and Determine the coverage range of the IAB node corresponding to the UE according to the reported information; The location information of the UE is determined according to the coverage range.

2. The method according to claim 1, characterized in that The determining, according to the reported information, the coverage range of the IAB node corresponding to the UE includes: The coverage of the IAB node is determined according to a preset configuration list and the identifier of the IAB node included in the reported information, wherein the preset configuration list stores a correspondence between the identifier of the IAB node and its coverage.

3. The method according to any one of claims 1 to 2, characterized in that: The reported information also includes one or more of the following: an identifier of a base station corresponding to the UE, and an identifier of a serving cell corresponding to the UE.

4. The method according to claim 3, characterized in that The determining, according to the coverage range, the location information of the UE includes: The reported information is transmitted to a network open function NEF network element, so that the NEF network element determines the location information of the UE according to the identifier of the IAB node, the identifier of the base station corresponding to the UE, and the identifier of the serving cell corresponding to the UE included in the reported information.

5. A positioning method for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The method is applied to a base station, wherein the user equipment UE accesses the base station through an IAB node at a fixed location, and the method comprises: In response to a location information reporting request for the UE, acquiring reporting information including an identifier of an IAB node corresponding to the UE, wherein the IAB node corresponding to the UE refers to an IAB node that establishes a connection with the UE; and The reported information is transmitted to the access and mobility management function AMF network element, so that the AMF network element or the NEF network element determines the coverage of the IAB node corresponding to the UE according to the reported information and determines the location information of the UE according to the coverage.

6. The method according to claim 5, characterized in that The transmitting the reported information to the access and mobility management function AMF network element comprises: determining whether the IAB node corresponding to the UE is an authorized IAB node; and When the IAB node corresponding to the UE is an authorized IAB node, the reporting information including the identifier of the IAB node is transmitted to the access and mobility management function AMF network element.

7. The method according to claim 5, characterized in that The reported information includes: The reporting information is obtained via an F1 interface between the base station and the IAB node or according to base station local configuration information, wherein the base station local configuration information indicates a corresponding relationship between the IAB node and the F1 interface.

8. The method according to claim 5, characterized in that The reported information includes: The reporting information is obtained via the NR Uu link between multiple IAB nodes.

9. The method according to any one of claims 5 to 8, characterized in that The reported information also includes one or more of the following: an identifier of a base station corresponding to the UE, and an identifier of a serving cell corresponding to the UE.

10. A positioning method for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The method is applied to a network open function NEF network element, wherein the user equipment UE accesses the base station through an IAB node at a fixed location, and the method comprises: In response to the positioning service request for the UE, obtaining, from a mobility management function AMF network element, reporting information including an identifier of an IAB node corresponding to the UE, wherein the IAB node corresponding to the UE refers to an IAB node that establishes a connection with the UE; and Determine the coverage range of the IAB node corresponding to the UE according to the reported information; The location information of the UE is determined according to the coverage range.

11. The method according to claim 10, characterized in that The reported information also includes an identifier of a base station corresponding to the UE and an identifier of a serving cell corresponding to the UE; The determining, according to the coverage range, the location information of the UE includes: Determining the coverage of the IAB node according to a preset configuration list and the identifier of the IAB node included in the reported information, wherein the preset configuration list stores a correspondence between the identifier of the IAB node and its coverage; and The location information of the UE is determined according to the coverage of the IAB node, the identifier of the base station corresponding to the UE, and the identifier of the serving cell corresponding to the UE.

12. A positioning method for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The method is applied to an access and mobility management function AMF network element, wherein an IAB node is deployed on a movable object, and the method comprises: In response to a positioning service request for the UE, acquiring the subscription information of the UE and the identifier of the mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node; When the subscription information of the UE indicates that the UE is a service user of a mobile IAB node, acquiring location information of the mobile IAB node from a base station based on an identifier of the mobile IAB node; and The location information of the UE is determined according to the location information of the mobile IAB node.

13. The method according to claim 12, characterized in that Also includes: When the UE registers with the network via the mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node is stored on the UDM platform according to the identifiers of the UE and the mobile IAB node.

14. The method according to claim 13, characterized in that Also includes: When the UE registers to the network via the mobile IAB node, according to the indication information provided by the UE indicating that the UE is a service user of the mobile IAB node, the subscription information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform.

15. The method according to any one of claims 12 to 14, characterized in that The location information of the mobile IAB node includes one or more of the following: an identifier of a base station corresponding to the mobile IAB node, and an identifier of a serving cell corresponding to the mobile IAB node.

16. A positioning method for user equipment UE based on integrated access and backhaul IAB, characterized in that: The method is applied to a gateway mobile location center GMLC, wherein an IAB node is deployed on a movable object, and the method comprises: In response to a positioning service request for the UE, acquiring the subscription information of the UE and the identifier of the mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node; When the subscription information of the UE indicates that the UE is a service user of a mobile IAB node, based on the identifier of the mobile IAB node, obtaining the location information of the mobile IAB node via a location management function LMF network element; and The location information of the UE is determined according to the location information of the mobile IAB node.

17. The method according to claim 16, characterized in that Also includes: When the UE registers with the network via the mobile IAB node, the corresponding relationship between the identifier of the UE and the mobile IAB node is stored on the UDM platform according to the identifiers of the UE and the mobile IAB node.

18. The method according to claim 17, characterized in that Also includes: When the UE registers to the network via the mobile IAB node, according to the indication information provided by the UE indicating that the UE is a service user of the mobile IAB node, the subscription information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform.

19. The method according to any one of claims 16 to 18, characterized in that The location information of the IAB node includes graphical geographical location information of the IAB node.

20. A positioning method for user equipment UE based on integrated access and backhaul IAB, characterized in that: The method is applied to a network open function NEF network element, wherein an IAB node is deployed on a movable object, and the method comprises: In response to a positioning service request for the UE, acquiring the subscription information of the UE and the identifier of the mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node; When the subscription information of the UE indicates that the UE is a service user of a mobile IAB node, based on the identifier of the mobile IAB node, obtaining the location information of the mobile IAB node from a mobility management function AMF network element or a gateway mobile location center GMLC; and The location information of the UE is determined according to the location information of the mobile IAB node.

21. The method of claim 20, wherein: Also includes: When the UE registers with the network via the mobile IAB node, the corresponding relationship between the UE and the identifier of the mobile IAB node is stored on the UDM platform according to the identifiers of the UE and the mobile IAB node.

22. The method according to claim 21, characterized in that Also includes: When the UE registers to the network via the mobile IAB node, according to the indication information provided by the UE indicating that the UE is a service user of the mobile IAB node, the subscription information indicating that the UE is a service user of the mobile IAB node is stored on the UDM platform.

23. The method according to any one of claims 20 to 22, characterized in that The location information of the IAB node includes one or more of the following: an identifier of a base station corresponding to the IAB node, an identifier of a serving cell corresponding to the IAB node, and graphical geographical location information of the IAB node.

24. A positioning device for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The device is applied to an access and mobility management function AMF network element, wherein the user equipment UE accesses a base station through an IAB node at a fixed location, and the device includes: an acquisition module, configured to, in response to a positioning service request for the UE, acquire, from a base station, reporting information including an identifier of an IAB node corresponding to the UE, wherein the reporting information includes an identifier of the IAB node corresponding to the UE, wherein the IAB node corresponding to the UE refers to an IAB node that establishes a connection with the UE; and The determination module is configured to determine the coverage range of the IAB node corresponding to the UE according to the reported information; and determine the location information of the UE according to the coverage range.

25. A positioning device for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The device is applied to a base station, wherein the user equipment UE accesses the base station through an IAB node at a fixed position, and the device includes: an acquisition module, configured to acquire, in response to a location information reporting request for the UE, reporting information including an identifier of an IAB node corresponding to the UE, wherein the IAB node corresponding to the UE refers to an IAB node that establishes a connection with the UE; and The sending module is configured to transmit the reported information to an access and mobility management function AMF network element, so that the AMF network element determines the coverage of the IAB node corresponding to the UE according to the reported information and determines the location information of the UE according to the coverage.

26. A positioning device for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The device is applied to a network open function NEF network element, wherein the user equipment UE accesses the base station through an IAB node at a fixed position, and the device includes: an acquisition module, configured to, in response to a positioning service request for the UE, acquire, from a mobility management function AMF network element, reporting information including an identifier of an IAB node corresponding to the UE, wherein the reporting information includes an identifier of the IAB node corresponding to the UE, wherein the IAB node corresponding to the UE refers to an IAB node that establishes a connection with the UE; and The determination module is configured to determine the coverage range of the IAB node corresponding to the UE according to the reported information; and determine the location information of the UE according to the coverage range.

27. A positioning device for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The device is applied to an access and mobility management function AMF network element, wherein the IAB node is deployed on a movable object, and the device includes: A first acquisition module is configured to, in response to a location service request for the UE, acquire the subscription information of the UE and an identifier of a mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node; A second acquisition module is configured to acquire location information of the mobile IAB node from a base station based on an identifier of the mobile IAB node when the subscription information of the UE indicates that the UE is a service user of the mobile IAB node; and The determination module is configured to determine the location information of the UE according to the location information of the mobile IAB node.

28. A positioning device for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The device is applied to a gateway mobile location center GMLC, wherein an IAB node is deployed on a movable object, and the device comprises: A first acquisition module is configured to, in response to a location service request for the UE, acquire the subscription information of the UE and an identifier of a mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node; A second acquisition module is configured to acquire the location information of the mobile IAB node via a positioning management function LMF network element based on an identifier of the mobile IAB node when the subscription information of the UE indicates that the UE is a service user of the mobile IAB node; and The determination module is configured to determine the location information of the UE according to the location information of the mobile IAB node.

29. A positioning device for a user equipment UE based on integrated access and backhaul IAB, characterized in that: The device is applied to a network open function NEF network element, wherein the IAB node is deployed on a movable object, and the device includes: A first acquisition module is configured to, in response to a location service request for the UE, acquire the subscription information of the UE and an identifier of a mobile IAB node corresponding to the UE from a unified data management (UDM) platform, wherein the UDM platform stores a correspondence between the UE and the identifier of the mobile IAB node and the subscription information of the UE, wherein the subscription information indicates whether the UE is a service user of the mobile IAB node; A second acquisition module is configured to acquire the location information of the mobile IAB node from a mobility management function AMF network element or a gateway mobile location center GMLC based on an identifier of the mobile IAB node when the subscription information of the UE indicates that the UE is a service user of the mobile IAB node; and The determination module is configured to determine the location information of the UE according to the location information of the mobile IAB node.

30. A communication device, wherein: include: Transceiver; Memory; A processor is connected to the transceiver and the memory, respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer executable instructions on the memory, and can implement the method described in any one of claims 1-4, or 5-9, or 10-11, or 12-15, or 16-19, or 20 to 23.

31. A computer storage medium, wherein: The computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, they can implement the method described in any one of claims 1-4, or 5-9, or 10-11, or 12-15, or 16-19, or 20 to 23.

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